Mitsubishi Electric ecodan EHPT20Q-VM2EA User manual
CYLINDER UNIT
EHPT20Q-VM2EA
INSTALLATION MANUAL
For safe and correct use, read this Manual and the outdoor unit installation manual thoroughly
before installing the cylinder unit.
This Installation Manual should be kept safe with the unit or in an accessible place for future
reference.
Cylinder unit "EHPT20Q-VM2EA" is compatible only with the outdoor unit (Model name :
QUHZ-W40VA)
FORINSTALLER
2
Contents
2. Introduction
3. Technical Information
4. Installation
4.1 Location
4.2 Water Quality and System Preparation
4.3 Water Pipework
4.4 Safety Device Discharge Arrangements (G3)
4.5 Electrical Connection
5. System Set Up
5.1 DIP Switch Functions
5.2 Connecting inputs/outputs
5.3 2-zone valve ON/OFF control
5.4 Indoor unit only operation (during installation work)
5.5 Remote Controller Options
5.6 Using SD memory card
5.7 Main Controller
6. Commissioning
7. Service and Maintenance
Abbreviations and glossary
No.
1
2
3
4
5
6
7
8
9
10
11
Accessories (Included)
Adjustable feet SD memory card Hose (rubber)
411
DescriptionAbbreviations/Word
Compensation curve mode
COP
Cylinder unit
DHW mode
Flow temperature
Freeze stat function
FTC
Heating mode
PRV
Return temperature
TRV
4
5
10
10
11
12
14
15
17
17
18
20
20
21
22
23
31
32
Space heating incorporating outdoor ambient temperature compensation
Coefficient of Performance (The efficiency of the heat pump)
Indoor primary thermal store tank and component plumbing parts
Domestic hot water heating mode for showers, sinks, etc.
Temperature at which water is delivered to the primary circuit for thermal store or space heating
Space heating control routine to prevent water pipes freezing
Flow temperature controller (the circuit board within cylinder unit that controls the system.)
Space heating through radiators or Underfloor heating
Pressure relief valve
Temperature at which water is returned from the primary circuit for thermal store and space heating
Thermostatic radiator valve – a valve on the entrance or exit of the radiator panel to control its heat output
1. Safety Notices 3
3
Please read the following safety precautions carefully.
WARNING:
Precautions that MUST be observed to prevent injuries or death.
CAUTION:
Precautions that MUST be observed to prevent damage to unit.
This Installation Manual along with the Operational Manual should be left with the product after installation for future reference.
Mitsubishi Electric is NOT responsible for the failure of locally-supplied parts.
WARNING
Mechanical
Electrical
General
CAUTION
.
The cylinder unit and outdoor unit MUST not be installed, disassembled, relocated, altered or repaired by the user. Ask an authorised installer or technician. If the unit
is installed improperly or modified after installation by the user water leakage, electric shock or fire may result.
The outdoor unit should be securely fixed to a hard level surface capable of bearing its weight.
The cylinder unit should be positioned on a hard level surface capable of supporting its filled weight to prevent excessive sound or vibration.
Do not position furniture or electrical appliances below the outdoor unit or cylinder unit.
The discharge pipework from the emergency devices of the cylinder unit should be installed according to local law / regulations.
Only use accessories and replacement parts authorised by Mitsubishi Electric. These should only be fitted by a qualified technician.
All electrical work should be performed by a qualified technician according to local regulations and the instructions given in this manual.
The units MUST be powered by a dedicated power supply and the correct voltage and circuit breakers MUST be used.
Wiring should be in accordance with national wiring regulations. Connections MUST be made securely and without tension on the terminals.
Earth unit correctly.
Keep children and pets away from both the cylinder unit and outdoor unit.
Do not use the hot water produced by the heat pump directly for drinking or cooking. This could cause illness to the user.
Do not stand on the units.
Do not touch switches with wet hands.
Annual maintenance checks on both the cylinder unit and the outdoor unit should be conducted by a suitable qualified person.
Do not place containers with liquids on top of the cylinder unit. If they leak or spill onto the cylinder unit damage to the unit and/or fire could occur.
Do not place any heavy items on top of the cylinder unit or the outdoor unit.
Use clean water that meets local quality standards on the primary circuit.
The outdoor unit should be installed in an area with sufficient airflow according to the diagrams in the outdoor unit installation manual.
The cylinder unit should be located inside to minimise heat loss.
Water pipe-runs on the primary circuit between outdoor and indoor unit should be kept to a minimum to reduce heat loss.
Ensure condensate from outdoor unit is piped away from the base to avoid puddles of water.
Remove as much air as possible from the primary and secondary (potable) circuits.
Refrigerant leakage may cause suffocation. Provide ventilation in accordance with EN378-1.
Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns.
Never put batteries in your mouth for any reason to avoid accidental ingestion.
Battery ingestion may cause choking and/or poisoning.
Install the unit on a rigid structure to prevent excessive sound or vibration during operation.
Do not transport the cylinder unit with water inside the thermal store tank. This could cause damage to the unit.
If power to the cylinder unit is to be turned off (or system switched off) for a long time, the water should be drained.
If unused for a long period, before operation is resumed, secondary (potable) circuit should be flushed through with potable water.
Preventative measures should be taken against water hammer, such as installing a Water Hammer Arrestor on the primary water circuit, as directed by the manufacturer.
The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst case, this
could lead to a serious impediment to securing product safety.
%HVXUHWRSHUIRUPSHULRGLFDOPDLQWHQDQFH%HVXUHWRIROORZ\RXUORFDOUHJXODWLRQV%HVXUHWRIROORZWKHLQVWUXFWLRQVSURYLGHGLQWKLVmanual.
In heating mode, to avoid the heat emitters being damaged by excessively hot water, set the target flow temperature to a minimum of 2ºC below the maximum
allowable temperature of all the heat emitters.
Safety Notices
1
Intended use
This product is designed and intended for domestic.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. Children
should be supervised to ensure they DO NOT play with the appliance or its associated controls.
4
Introduction
2
The purpose of this Installation Manual is to instruct competent persons how to safely and efficiently install and commission the cylinder unit system.
The target readers of this manual are competent plumbers and/or refrigeration engineers who have attended and passed the requisite Mitsubishi Electric
product training and have appropriate qualifications for installation of an unvented hot water cylinder unit specific to their country.
5
Technical Information
3
ŰProduct specification
<Table 3.1>
*1 Depending on the ambient conditions, it may not reach the set temperature.
*2 The cylinder's environment MUST be frost-free.
Model name EHPT20Q-VM2EA
Modes Space & DHW heating
Nominal thermal store tank volume 200 L
Overall unit dimensions 1600 × 595 × 680 mm (Height × Width × Depth)
Weight (empty) 77 kg
Weight (full) 283 kg
Primary expansion vessel
(Accessory item)
18 L or 25 LNominal volume
Charge pressure 1.0 bar (100 kPa)
Safety device 42 - 72°C
80 °C
3.0 bar (300 kPa)
90 °C
121 °C
Control thermistor (THW1)
Control thermistor (THW3)
Pressure relief valve (2 No. devices)
Min. flow 1.3 L/min
90 °C
Flow sensor
Manual reset thermostat
Manual reset thermostat
Thermal Cut-out
(for dry run prevention)
Water circuit
(Thermal store tank)
Boosterheater
Primary circuit circulating
pump
Grundfos Solar PML 25-145 180Thermal store and space heating
Hot water supply Grundfos Solar PML 25-145 180
Connections φ22.0
φ22.0
Primary circuit
Secondary (potable) circuit
Target temperature range Space heating 25 - 60 °C
Maximum secondary (potable) water supply pressure 10 bar (1 MPa)
Maximum primary working pressure 2.5 bar (250 kPa)
Minimum primary working pressure 1.0 bar (100 kPa)
10 - 30 °C
DHW supply maximum temperature 40 - 70 °C
Flow temperature *1
Room temperature
Guaranteed operating range 0 - 35 °C（80％RH)- 15 - 35 °C
Ambient *2
Outdoor temperature
Electrical data 230V N〜50 Hz
20 A
230V N〜50 Hz
2 kW
Control board
Booster heater
Power supply (Phase, voltage, frequency)
Breaker (Local supply)
Power supply (Phase, voltage, frequency)
Capacity
Current 8.7 A
Breaker 16 A
Sound power level 40 dB(A)
12.8 ACurrent
6
Technical Information
3
<Table 3.2>
No. Part name
A DHW outlet pipe
B Cold water inlet pipe
C Water pipe (Space heating return connection)
E Water pipe (Flow from heat pump connection)
F Water pipe (Return to heat pump connection)
3 Booster heater with thermostat
4 3-way valve
5 Manual thermostat
6 Manual air vent (above tank)
7 Manual air vent (above pump A)
8 Drain valve (Primary circuit)
9 Manometer
10 Primary pressure relief valve (3bar)
11 Automatic air vent
12 Flow sensor 1 (For space heating)
13 Flow sensor A (Secondary (Potable) circuit)
14 Flow sensor B (Primary circuit)
15 Strainer valve
16 Water circulation pump A (
For hot water supply to plate heat exchanger
)
17 Pump valve
18 Primary thermal store tank
19 Plate heat exchanger (Water - Water)
20 Water circulation pump 1 (For thermal store and space heating)
1 Control and electrical box
2 Main controller
Water pipe (Space heating flow connection)D
EHPT20Q-VM2EA
21 THW1 (Flow water temp. thermistor)
22 THW2 (Return water temp. thermistor)
23 Drain cock (HEX) (Secondary (Potable) circuit)
26 Drain cock (For pump A)
27
28 THW5B (Stored water temp. thermistor (lower))
29 THW3 (Flow water temp. thermistor 2 (to tank))
Drain cock (Booster heater)
THW5A (Stored water temp. thermistor (upper))
25
30 THW4 (DHW supply temp. thermistor)
31 Electrical isolation pipe
32 Primary expansion vessel (Accessory item)
33 Drain pipe (Local supply)
34
35
Tundish (Accessory item)
Isolating valve (Local supply)
36 Magnetic filter (Local supply) (Recommended)
37 Strainer (Local supply)
38
Filling loop (Ball valves, check valves and flexible hose) (Accessory item)
Thermo mix valve (recommended) (Local supply)39
—
—
—
—
—
—
—
—
Drain cock (HEX) (Primary circuit)24
EHPT20Q-VM2EA
<Note>
ŰComponent Parts
<Figure 3.1>
6
FDE
B
A
10 11
9
18
2
4
5
3
15
14
12
25
20
C
1
13
7
16
26
8
19
31
23
24
10
Make sure to correctly install the Mitsubishi Electric Accessory
Parts (e.g. Primary expansion vessel, Tundish and Filling loop)
in the field. (See Page 8, 12 and 14.)
7
Technical Information
3
<Unit: mm>
<Top>
438.1
503.1
568.1
430.6
513.1
533.1
568.1
578.1
55
52.5
102.5
115
405.8
457.5
502.5
512.5
542.5
547.5
0
189.2
00
0
B
A
F
E
C
D
①②③④⑤⑥Letter Pipe and cable description Connection size/type
A DHW outlet connection 22 mm/Compression
B Cold water inlet connection 22 mm/Compression
C Space heating return connection 22 mm/Compression
D 22 mm/Compression
E
Flow from heat pump connection (No plate heat exchanger)
22 mm/Compression
F
Return to heat pump connection (No plate heat exchanger)
22 mm/Compression
Space heating flow connection
①Booster heater inlet (Power cable 230 V) Run booster heater cable
②Main power inlet (Power cable 230 V) Run power cable
③Cylinder unit - outdoor unit cable (Power cable 230V) Run cylinder unit -outdoor unit cable
④Run output cable
⑤Signal input cable inlet Run signal input cables and remote sensor wires
⑥Wireless receiver and Wi-Fi interface cable inlet
Run wireless receiver cable and ecodan Wi-Fi interface (option) cable
Output cable inlet
—
—
65 m
65 m
15 m
15 m
—
—
15 m
—
—
—
Pipe or cable length (Max.)
<Table 3.3>
ŰTechnical Drawings
<Left side> <Back side><Front> <Right side>
Air vent
Manometer
Main controller
Front panel
Presser relief valve
Rc1/2 Presser relief
valve
Rc1/2
Handle
680
595
1600 100
90
93
8
Technical Information
3
26
*1 Refer to the following section [Local system].
<Figure 3.2>
Note:
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:KHQXVLQJFRPSRQHQWVPDGHIURPGLIIHUHQWPHWDOVRUFRQQHFWLQJSLSHVPDGHRIGLIIHUHQWPHWDOVLQVXODWHWKHMRLQWVWRSUHYHQWDQ\corrosive reactionWDNLQJSODFHZKLFKPD\GDPDJHWKHSLSHZRUN)LOOLQJORRSǯVIOH[LEOHKRVHPXVWEHUHPRYHGIROORZLQJWKHILOOLQJSURFHGXUH,WHPSURYLGHGZLWKXQLWDVORRVHDFFHVVRU\,QVWDOOSULPDU\H[SDQVLRQYHVVHOWRWKHUHWXUQFLUFXLWRIVSDFHKHDWLQJDQGensure clear waterSDVVDJHEHWZHHQF\OLQGHUXQLWDQGSULPDU\H[SDQVLRQYHVVHONote: 0D[LPXPSULPDU\ZDWHUVXSSO\SUHVVXUHLVEDU03D$WFRPPLVVLRQLQJVWDJHSOHDVHDGMXVWZDWHUSUHVVXUHZLWKLQSULPDU\FLUFXLWWREDUN3D(+37490($!Model name EHPT20Q-VM2EA
Maximum VHFRQGDU\SRWDEOHZDWHUVXSSO\SUHVVXUHEDU03D3ULPDU\H[SDQVLRQYHVVHOFKDUJHSUHVVXUHEDUN3D3ULPDU\SUHVVXUHUHOLHIYDOYHVVHWSUHVVXUH1RGHYLFHVEDUN3DBooster heater VSHFLILFDWLRQN:93ULPDU\WKHUPDOVWRUHFDSDFLW\7DQNFDSDFLW\/NJMass of the unit when full
0LQLPXPSULPDU\ZRUNLQJSUHVVXUHEDUN3D7DEOH!1. Plate heat exchanger
2. Booster heater with thermostat
3. Drain cock (Primary circuit)
4. Drain cock (Secondary (Potable) circuit)
5. Pump valve
6. Water circulation pump 1
(For thermal store and space heating)
7. Water circulation pump A
(
For hot water supply to plate heat exchanger
)
8. 3-way valve
9. Manometer
10. Primary pressure relief valve
11. Automatic air vent
12. Manual air vent
13. Drain valve (Primary circuit)
14. Strainer valve
15. Flow sensor 1 (For space heating)
16. Flow sensor A (Secondary (Potable) circuit)
17. Flow sensor B (Primary circuit)
18. Primary thermal store tank
19. THW1 (Flow water temp. thermistor)
20. THW2 (Return water temp. thermistor)
21. THW3 (
Flow water temp. thermistor 2
(
to tank
))
22. THW4 (DHW supply temp. thermistor)
23. THW5A (
Stored water temp. thermistor
(
upper
))
24. THW5B (
Stored water temp. thermistor
(
lower
))
25. Electrical isolation pipe
26. Manual thermostat
27. Non-return valve
28. Filling loop (Accessory item)
29. Primary expansion vessel (Accessory item)
30. Discharge pipe (Local supply)
31. Tundish (Accessory item)
32. Isolating valve (Local supply)
33. Thermo mix valve (recommended) (Local supply)
34. Magnetic filter (recommended) (Local supply)
35. Strainer (Local supply)
,nlet
0DLQVZDWHUVXSSO\Outlet DHW18
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13
19
27
*
1
221
22
23
3
2
11
7
12
27
3
8
629*
*
32*
32*
32*
33*
32*
32*
9
3D12
3
17 16
Local system*1
HEX &\OLQGHU8QLW(+37490($7RGrain 7RGrain
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7RGrain ŰWater circuit diagram
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Technical Information
3
1-zone temperature control
1
Zone1
2
4
Zone1
Zone2
3
1
1
1-zone temperature control (2-zone valve ON/OFF control)
1. Heat emitters (e.g. radiator, fan coil unit) (local supply)
2. Zone1 2-way valve (local supply)
3. Zone2 2-way valve (local supply)
4. Auto-bypass valve (local supply)
End user can monitor accumulated*1 ‘Consumed electrical energy’ and ‘Delivered energy’ in each operation mode*2 on the main controller.
*1 Monthly and Year to date
*2 - DHW operation
- Space heating
Refer to “5.7 Main controller” for how to check the energy, and “5.1 DIP switch functions” for the details on DIP-SW setting.
Either one of the following two method is used for monitoring.
Note: The method 1 should be used as a guide. If greater accuracy is required, then method 2 should be used.
Note: Consumed electric energy of pump A is automatically calculated by the system.
Booster heater Pump1*1
Default 2kW ***(factory fitted pump)
EHPT20Q-VM2EA 2kW ***
<Table 3.5>
*1 "***" displayed in the energy monitor setting mode means the factory fitted pump is connected as pump 1 so that the input is automatically calculated.
When anti-freeze solution (propylene glycol) is used for primary water circuit, set the produced energy adjustment if necessary.
For further detail of above, refer to “5.7 Main controller”.
2. Actual measurement by external meter (locally supplied)
FTC has external input terminals for 2 ‘Electric energy meters’ and a ‘Heat meter’.
If two ‘Electric energy meters’ are connected, the 2 recorded values will be combined at the FTC and shown on the main controller.
(e.g. Meter 1 for main power line, Meter 2 for booster heater power line)
Refer to the [Signal inputs] section in “5.2 Connecting inputs/outputs” for more information on connectable electric energy meter and heat meter.
1. Calculation internally
Electricity consumption is calculated internally based on the energy consumption of outdoor unit, electric booster heater, pump1 and other auxiliaries.
Produced heat is calculated internally by multiplying delta T (Flow and Return temp.) and flow rate measured by the factory fitted sensors.
Set the electric booster heater capacity and water pump(s) input according to indoor unit model. (Refer to the menu tree in “5.7Main controller”)
ŰLocal system
ŰEnergy monitoring
10
Installation
4
a
bb
d
4.1 Location
<Figure 4.1.1>
Cylinder unit is delivered on a wooden pallet base with cardboard protection.
<Figure 4.1.2>
Service access
Service access
Parameter Dimension (mm)
(distance behind unit not visible
in Figure 4.1.2)
<Table 4.1.1>
Front
Fixing legs Attaching position of adjustable
feet (accessory parts)
Front
<Preparation before the installation and service>
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<Precautions during service>
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4.1.1>.
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Ɣ'RQRWSRXUZDWHURUOLTXLGLQWRWKHelectrical parts.
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b
c
d
,I\RXQHHGWRPRYHWKHF\OLQGHUXQLWWRDQHZSRVLWLRQ)8//<'5$,1WKHF\OLQder unit before moving to avoid damage to the unit. $OVRWDNHFDUHWRSURWHFWbuilding fabrics (floor and wall finishes).
,IILWWLQJDQHZURRPWKHUPRVWDWIRUWKLVV\VWHP3RVLWLRQLWRXWRIGLUHFWVXQOLJKWDQGGUDXJKWV3RVLWLRQLWRQDQLQWHUQDOZDOO3RVLWLRQLWDZD\IURPLQWHUQDOKHDWVRXUFHV3RVLWLRQLWLQDURRPZLWKRXWD759RQWKHUDGLDWRUKHDWHPLWWHUNote: Do not position the thermostat excessively close to the external
wall. The thermostat may detect the temperature of the wall, which
could affect appropriate control of the room temperature.
3RVLWLRQLWDSSUR[PIURPIORRUOHYHO7KHF\OLQGHUXQLWVKRXOGEHLQVWDOOHGLQGRRUVLQDIURVWIUHHZHDWKHUSURRIORFDtion.
,QVWDOOWKHF\OLQGHUXQLWZKHUHLWLVQRWH[SRVHGWRZDWHUH[FHVVLYHPRLVWXUH,QVWDOOWKHF\OLQGHUXQLWonly where the difference in height between the cylinder
XQLWDQGWKHRXWGRRUXQLWLVOHVVWKDQP7KHF\OLQGHUXQLWVKRXOGEHSRVLWLRQHGRQDOHYHOVXUIDFHFDSDEOHRIVXSSRUWLQJitǯs filled weight. (Adjustable feet (accessory parts) can be used to ensure unit is
level) (see Figure 4.1.1)
:KHQXVLQJWKHDGMXVWDEOHIHHWHQVXUHWKDWWKHIORRULVVWURQJHQRXJK・:KHQILWWHGWKHDGMXVWDEOHIHHWVKRXOGRQO\EHH[WHQGHGDQGXVHGWROHYHODQGstabilise the unit. And weight load should be evenly spread.
&DUHVKRXOGEHWDNHQWKDWPLQLPXPGLVWDQFHVDURXQGDQGLQIURQWRIWKHXQLWIRUservice access are observed <Figure 4.1.2>.
6HFXUHWKHF\OLQGHUXQLWWRSUHYHQWit from potentially beingNQRFNHGRYHUŰTransportation and Handling
ŰSuitable Location ŰService access diagrams
300
10
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ŰRepositioning
%efore installation the cylinder unit should be stored in a frostfree weatherSURRIORFDWLRQ8QLWVPXVWNOTEHVWDFNHG 11
4.2 Water Quality and System Preparation
Installation
4
ŰGeneral ŰMinimum amount of water required
in the space heating circuit
Note:
<A> <B>
<Figure 4.2.1>
<A> Opening the front panel
screws
screws
Hinges
<B> Accessing the back of control and electrical box
The control and electrical box has four holding screws and is hinged on the right
hand side.
Note:
%HIRUHFRQQHFWLQJRXWGRRUXQLWWKRURXJKO\FOHDQVHSLSHZRUNRIEXLOGLQJGHEULVsolder etc using a suitable chemical cleansing agent.
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)OXVKWKHV\VWHPWRUHPRYHFKHPLFDOFOHDQVHU$GGDFRPELQHGLQKLELWRUDQGDQWLIUHH]HVROXWLRQWRSUHYHQWGDPDJHWRWKHSLSHZRUNDQGV\VWHPFRPSRQHQWV:KHQXVLQJFKHPLFDOFOHDQVHUVDQGLQKLELWRUVDOZD\VIROORZmanufacturer’s
instructions and ensure the product is appropriate for the materials used in the
water circuit
After servicing, re-assemble and re-secure all cables using straps provided.
Reconnect main controller cable to its relay connector. Replace front panel
and re-secure screws at base.
6XLWDEOHDQWLIUHH]H0867EHXVHGLQ$//LQVWDOODWLRQVAnti-freeze solution0867beSURS\OHQHJO\FROZLWKDWR[LFLW\UDWLQJRI&ODVVDVOLVWHGLQ&OLQLFDO7R[LFRORJ\RI&RPPHUFLDO3URGXFWVWK(GLWLRQ7KHZDWHULQERWKSULPDU\DQGVHFRQGDU\SRWDEOHFLUFXLWshould be clean and
with pH YDOXHRI7KHIROORZLQJVDUHWKHPD[LPXPYDOXHV;
&DOFLXPPJ/&DKDUGQHVVPJ/&KORULQHPJ/&RSSHUPJ/,URQ0DQJDQHVHPJ/2WKHUFRQVWLWXHQWVVKRXOGEHWR(XURSHDQ'LUHFWLYH(&VWDQGDUGV,QNQRZQKDUGZDWHUDUHDVWRSUHYHQWPLQLPLVHVFDOLQJLWLVEHQHILFLDOWRUHVWULFWWKHURXWLQHVWRUHGZDWHUWHPSHUDWXUH'+:VXSSO\PD[WHPSWR&RUOHVV1.
Ethylene glycol anti-freeze is TOXIC. Therefore it MUST NOT be used in the
primary water circuit in case of any cross-contamination of the secondary
(potable) circuit.
2. For 2-zone valve ON/OFF control, propylene glycol solution MUST be used. 0LQLPXPZDWHUTXDQWLW\>/@3ULPDU\circuit /<Table 4.2.1>
ŰAnti-Freeze
ŰNew Installation (primary water circuit)
ŰExisting Installation (primary water circuit)
ŰHow to access Internal Components and Control
and Electrical Box
Front panel
5HPRYHWKHKROGLQJVFUHZVRQWKHFRQWURODQGHOHFWULFDOER[2. The control and electrical box can then be VZXQJRSHQHGFORVHGon the right
hand hinges.
5HPRYHWKHILYHVFUHZV2. 6OLGHIURQWSDQHOGRZQZDUGVVOLJKWO\DQGRSHQFDUHIXOO\'LVFRQQHFWWKHUHOD\FRQQHFWRUFRQQHFWLQJPDLQFRQWUROOHUFDEOHDQGWKHFRQWUROboard FDEOHXVLQJWKHTXLFNFRQQHFWRU
Open
1RWH5HIHUHQFH7KHYROXPHRIKHDWHPLWWHUVDQGH[WHUQDOSLSHVshould be included. /Thermal store tank
6SDFHKHDWLQJFLUFXLW6HFRQGDU\SRWDEOHcircuit /32 L
12
Note:
4.3 Water Pipework
Connections to the cylinder unit should be made using the 22 mmcompression
as appropriate.
Do not over-tighten compression fittings as this will lead to deformation of the
olivering and potential leaks.
Install a hydraulic filter or strainer (local supply) at the water intake (“Pipe E” in
Fig.3.1)
Cold water to the suitable standard (see section 4.2) should be introduced to
the system by connecting pipe B (Figure 3.1) using appropriate fittings.
7KHSLSHZRUNZLOOEHFRPHYHU\KRWVRVKRXOGEHLQVXODWHGWRSUHYHQWEXUQV:KHQFRQQHFWLQJSLSHZRUNHQVXUHWKDWQRIRUHLJQREMHFWVVXFKas dirt or
debris enter the pipe.
&RQQHFWWKHIORZIRUWKH'+:WRSLSH$)LJXUH7KHIXQFWLRQRIWKHIROORZLQJVDIHW\FRPSRQHQWVRIWKHsystem should be
checked on installation for any abnormalities;
3UHVVXUHUHOLHIYDOYHPrimary circuit)
Primary expansion vessel pre-charge JDVFKDUJHSUHVVXUH$FFHVVRU\LWHPThe cylinder unit is UNVENTED.:KHQLQVWDOOLQJXQYHQWHGLQGLUHFWKRWZDWHUV\VWHPVEXLOGLQJUHJXODWLRQVSDUW*(QJODQGDQG:DOHV3(Scotland) and P5 (Northern Ireland) should be adhered to. If outside of the
UK please adhere to your own country’ s regulations for unvented hot water
systems.
To weld the pipes in the field, ensure the pipes on the cylinder unit are
cooled using wettowel etc.
0
0
5
10
15
20
25
50 100 150 200 250 300 350 400
Primary expansion vessel sizing
Expansion vessel volume [L]
System water volume [L]
<Figure 4.3.1>
V = İ× G
íP¹+ 0.098
P²+ 0.098
:KHUHGraph to the right is for the following values
Primary expansion vessel volume 0867fit the local system water volume.
7RVL]HDQH[SDQVLRQYHVVHOIRUWKHKHDWLQJFLUFXLWWKHIROORZLQJIRUPXODDQGgraph can be used.
V
İG
P1
P2
: Necessary expansion vessel volume [L]
:DWHUH[SDQVLRQFRHIILFLHQW7RWDOYROXPHRIZDWHULQWKHV\VWHP>/@: Expansion vessel setting pressure [MPa]
: Max pressure during operation [MPa]
İP1
P2
: at 70 °C = 0.0229
: 0.1 MPa
: 0.3 MPa
$VDIHW\PDUJLQKDVEHHQDGGHGInstallation
4
ŰSizing Primary Expansion Vessels
ŰCold Water Pipework
ŰHydraulic filter work
ŰPipework Connections
ŰHot Water Pipework
$OOH[SRVHGZDWHUSLSHZRUNVKRXOGEHLQVXODWHGWRSUHYHQWXQQHFHVVDU\KHDWORVVDQGFRQGHQVDWLRQ7RSUHYHQWFRQGHQVDWHHQWHULQJWKHF\OLQGHUXQLWWKHpipework and connections at the top of the cylinder unit should be carefully
insulated.
&ROGDQGKRWZDWHUSLSHZRUNVKRXOGQRWEHUXQFORVHWRJHWKHUZKHUHSRVVLEOHto avoid unwanted heat transfer.
3LSHZRUNEHWZHHQRXWGRRUKHDWSXPSXQLWDQGF\OLQGHUXQLWVKRXOGEHLQVX-
ODWHGZLWKVXLWDEOHSLSHLQVXODWLRQPDWHULDOZLWKDWKHUPDOFRQGXFWLYLW\RI:m
Ú
K.
ŰInsulation of Pipework
IMPORTANT<Air discharging of pump A>
2SHQWKHWZRPDQXDODLUYHQWVDIWHUILOOLQJWKHV\VWHPUHIHUWRWKHIROORZLQJsection) .
$QWLIUHH]HVKRXOGDOZD\VEHXVHGIRUSDFNDJHGPRGHOV\VWHPVVHHsection 4.2 for instruction). Corrosion inhibitor should be used in both split
model and packaged model systems.
:KHQFRQQHFWLQJPHWDOSLSHVRIGLIIHUHQWPDWHULDOVLQVXODWHWKHMRLQWVWRprevent a corrosive reaction taking place which will damage the pipework.
6&KHFNIRUOHDNDJHV,IOHDNDJHLVIRXQGUHWLJKWHQWKHQXWRQWRWKHFRQQHF-
tions.
7. Pressurise system to 1 bar with all the water in thermal store tank cold.
,IWKHV\VWHPLVSUHVVXULVHGZLWKWKHZDWHULQWKHUPDOVWRUHWDQNKRWDLUinclusion in pump may be caused by the pressure drop of the system that
occurs if the hot water gets cold. )
8. Release all trapped air using air vents during and following heating period.
97RSXSZLWKZDWHUDVQHFHVVDU\,ISUHVVXUHLVEHORZEDU1. Check all connections including factory fitted ones are tight.
2. Insulate pipework between cylinder unit and outdoor unit.
2SHQWKHDXWRPDWLFDLUYHQWWRHQDEOHDXWRPDWLFDLUEOHHGLQJIXQFWLRQ47KRURXJKO\FOHDQDQGIOXVKV\VWHPRIDOOGHEULVVHHVHFWLRQIRULQVWUXF-
tion.)
5. )LOOSULPDU\KHDWLQJFLUFXLWZLWKZDWHUDQGVXLWDEOHDQWLIUHH]HDVQHFHVVDU\
Always use a new filling loop with double check valve when filling the
primary circuit to avoid back flow contamination of water supply.
Do not use an old filling loop.
Do Not turn ON the system until the system is fully charged of water.
$WWDFKWKHaccessory rubber hose to the
PDQXDODLUYHQWDERYHSXPS$WRSUHYHQWwater from dripping on to the pump during
the air bleeding operation.
2SHQWKHGUDLQFRFNRIWKHPDQXDODLUYHQWand discharge the air.
2SHQDtap and confirm that hot water is
supplied after approximately 30 minutes from
the beginning of thermal store operation.
Note: If the air is not sufficiently discharged, hot water is not supplied and an
error occurs. Continue to discharge the air until smooth delivery of hot
water.
Note: Make sure to turn OFF the booster heater power supply before filling the
system
Note:
$XWRPDWLFDLUYHQWV0867be installed at the highest point of the primary
V\VWHP7KHVOLJKWHVWDPRXQWRIDLULQWKHV\VWHPFDQUHGXFHHIILFLHQFLHVDQGeven cause the cylinder unit to fault.
Confirm the following if the air cannot be discharged.
$LUGLVFKDUJLQJRIradiators
$LUGLVFKDUJLQJIURPLVRODWLQJvalves
,IQHFHVVDU\WXUQRQWKHSXPSXVLQJ0DQXDORSHUDWLRQUHIHUWRSDJH
Manual
air vent
3XPS$ŰFilling the System (Primary Circuit)
7RSUHYHQWnegative pressure effecting waterFLUFXLWinstaller should install
pipework or use appropriate devices.
ŰNegative pressure prevention
7KHLQVWUXFWLRQRQWKHIROORZLQJSDJHVUHJDUGLQJVDIHGLVFKDUJHRIKRWZDWHUfrom Safety devices should be followed carefully.
13
Installation
4
Outdoor unit
QUHZ-W40VA 3.0 - 8.0
<Table 4.3.1>
Water circulation pump 1 characteristics
*The performance showing Figure 4.3.2 includes pressure drop of both cylinder unit and outdoor unit.
Before installation, please check if the maximum performance of water circulation pump 1 can accommodate the pressure drop of external heating circuit.
Water flow rate range [L/min]
* If the water flow rate exceeds 9.0L/min, the flow speed will be greater than
1.5m/s, which could erode the pipes.
* In case of “Compensation curve mode” or “Flow temp. mode” please select
“Manual” mode then choose flow rate manually from 3.0 to 8.0 L/min. If “Auto”
mode is selected, flow rate will be fixed at “7.0 L/min”.
Circulation flow rate of EHPT20Q-VM2EA unit is determined by settings of “Flow
rate setting” and “pump speed”.
1. Primary circuit for thermal store and space heating
In the space heating operation,circulation flow rate can be selected by maincontroller setting.(refer to page 29) Pump 1 automatically operates to adjust the
flow rate to the setting. Auto setting automatically selects a flow rate appropriate
for effective operation.
In the thermal store operation, circulation flow rate is automatically selected to
adjust the hot water temperature to the main remote controller settingand pump 1
automatically operates.
In other operations (ex. Freeze stat operation,Emergency mode,Indoor unit only
operation), pump 1 operates at apump speed selected by main controller setting.
(See Figure 4.3.2)
Adjust the pump speed setting so that the flow rate in the primary circuit is appro-
priate for the outdoor unit installed.(see Table 4.3.1)
2. Primary circuit for hot water supply
Pump A automatically operates regardless of the flow rate the settings.
Pump
Speed 3
Pump
Speed 5(Max)
<Figure 4.3.2>
<Figure 4.3.3>
Diagram
part No.
Description Connection
size
Connection
type
10 Pressure relief valve G 1/2 Female
<Table 4.3.2>
Cold water inlet
Tundish
DHW
The primary pressure relief valves on the primary side needs appropriate
discharge pipework.
Always refer to local regulations when installing discharge pipework.
Install discharge pipework in a frost-free environment.
It is necessary to provide appropriate drainage from the pressure relief valve
situated on top of the cylinder unit to prevent damage to the unit and the
surrounding area from any steam or hot water released. Relief valves MUST
NOT be used for any other purpose.
ƔDo not secure the screws excessively when connecting the
Discharge pipe, otherwise this may result in damage to the cylinder
unit.
ƔPressure relief valve connections should not be used for any other
purpose.
*1 In accordance with Building Regulations a tundish MUST be fitted into the pipe-
work within 500 mm of the safety device. Due to the distance between the two
safety devices it may be necessary to fit each safety device with its own tundish
before you run the pipework together to a safe discharge.(See Figure 4.3.3)
10
HEX
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
160.0
1086420
džƚĞƌŶĂůƐƚĂƟĐƉƌĞƐƐƵƌĞŬWĂ
&ůŽǁƌĂƚĞ>ŵŝŶŰFlow rate setting
ŰSafety Device Connections 10
Note:
Pump Speed
1
Pump Speed
2
Pump
Speed 4;ĞĨĂƵůƚƐĞƫŶŐͿ
14
Minimum size of
discharge pipe D1
Minimum size of discharge
pipe D2 from tundish
Maximum resistance allowed, expressed as a
length of straight pipe (no elbows or bends)
Resistance created by
each elbow or bend
G 1/2 15 mm 22 mm Up to 9 m 0.8 m
28 mm Up to 18 m 1.0 m
35 mm Up to 27 m 1.4 m
G 3/4 22 mm 28 mm Up to 9 m 1.0 m
35 mm Up to 18 m 1.4 m
42 mm Up to 27 m 1.7 m
G1 28 mm 35 mm Up to 9 m 1.4 m
42 mm Up to 18 m 1.7 m
54 mm Up to 27 m 2.3 m
<Table 4.4.1>
Valve outlet
size
Metal discharge pipe (D1)
pressure relief valve to tundish
Safety device
(e.g. pressure
relief valve)
500 mm maximum
Tundish
300 mm
minimum
Metal discharge pipe (D2) from tundish,
with continuous fall. See Point 4.D i-iv,
Table 4.4.1 and worked example
Fixed grating
Trapped gulley
<Figure 4.4.1>
4.4
Safety Device Discharge Arrangements (G3)
Worked example:
i. Ideally below a fixed grating and above the water seal in a trapped gully.
ii. Downward discharges at low level; i.e. up to 100 mm above external
surfaces such as car parks, hard standings, grassed areas etc. are accept-
able providing that where children may play or otherwise come into contact
with discharges a wire cage or similar guard is positioned to prevent contact,
whilst maintaining visibility.
iii. Discharges at high level; e.g. into a metal hopper and metal down pipe with
the end of the discharge pipe clearly visible (tundish visible or not) or onto a
roof capable of withstanding high temperature discharges of water and 3 m
from any plastic guttering system that would collect such discharges (tundish
visible).
iv. Where a single pipe serves a number of discharges, such as in blocks of
flats,the number served should be limited to not more than 6 systems so that
any installation discharging can be traced reasonably easily. The single
common discharge pipe should be at least one pipe size larger than the
largest individual discharge pipe (D2) to be connected. If unvented hot water
storage systems are installed where discharges from safety devices may not
be apparent i.e.in dwellings occupied by blind, infirm or disabled people,
consideration should be given to the installation of an electronically operated
device to warn when discharge takes place.
1. Connect the tundish and route the discharge pipe as shown in Figure 4.4.1.
2. The tundish should be fitted vertically and as close to the safety device as
possible and within 500 mm of the device.
3. The tundish should be visible to occupants and positioned away from electri-
cal devices.
4. The discharge pipe (D2) from the tundish should terminate in a safe place
where there is no risk to persons in the vicinity of the discharge, be of metal
construction and:
A) Be at least one pipe size larger than the nominal outlet size of the safety
device unless its total equivalent hydraulic resistance exceeds that of a
straight pipe 9 m long i.e. discharge pipes between 9 m and 18 m equivalent
resistance length should be at least two sizes larger than the nominal outlet
size of the safety device, between 18 and 27 m at least 3 sizes larger, and so
on. Bends MUST be taken into account in calculating the flow resistance.
Refer to Figure 4.4.1, Table 4.4.1 and the worked example. An alternative
approach for sizing discharge pipes would be to follow BS 6700: 1987 specifi-
cation for design installation, testing and maintenance of services supplying
water for domestic use within buildings and their cartilages.
B) Have a vertical section of pipe at least 300 mm long, below the tundish before
any elbows or bends in the pipework.
C) Be installed with a continuous fall.
D) Have discharges visible at both the tundish and the final point of discharge
but where this is not possible or is practically difficult there should be clear
visibility at one or other of these locations. Examples of acceptable discharge
arrangements are:
Discharge below fixed grating
(Point 4.D gives alternative points of
discharge)
Note: The discharge will consist of scalding water and steam. Asphalt,
roofing felt and nonmetallic rainwater goods may be damaged by
such discharges.
Discharges MUST be positioned in a frost-free location.
From Table 4.4.1: Maximum resistance allowed for a straight length of 22 mm
copper discharge pipe (D2) from a G½ pressure relief valve is: 9.0 m subtract
the resistance for 4 No. 22 mm elbows at 0.8 m each = 3.2 m. Therefore the
maximum permitted length equates to: 5.8 m. 5.8 m is less than the actual
length of 7 m, therefore calculate the next largest size. Maximum resistance
allowed for a straight length of 28 mm pipe (D2) from a G½ pressure relief valve
equates to: 18 m
Subtract the resistance for 4 No. 28 mm elbows at 1.0 m each = 4 m. Therefore
the maximum permitted length equates to: 14 m. As the actual length is 7 m, a
28 mm (D2) copper pipe will be satisfactory.
The following instructions are a requirement of UK Building Regulations
and MUST be adhered to. If you are in any doubt please seek advice from
local building planning office.
Installation
4
The example below is for a G½ pressure relief valve with a
discharge pipe (D2) having 4 No. elbows and length of 7 m from the tundish to
the point of discharge.
15
4.5 Electrical Connection
Breaker abbreviation Meaning
ECB Earth leakage circuit breaker for booster heater
TB1 Terminal block 1
TB2 Terminal block 2
TB2
TB1
ECB 0DNHVXUHWKDW(&%LV21*1
2n completion of wiring, ensure main controller cable is connected to
the relay connectorThe outdoor unit can only be powered via Cylinder unit.
&RQQHFWLRQVVKRXOGEHPDGHWRWKHterminals as indicated in the figures to the
left EHORZ
7KHZLUHV①〜⑦0867127EHEXQGOHGWRJHWKHUZLWKRWKHUZLUHVKDYLQJGLIIHUHQWQXPEHU5HIHUWR)LJXUH!$OOHOHFWULFDOZRUNVKRXOGEHFDUULHGRXWE\DVXLWDEO\TXDOLILHGWHFKQLFLDQ)DLOXUHWRFRPSO\ZLWKWKLVFRXOGOHDGWRHOHFWURFXWLRQILUHDQGGHDWK,WZLOODOVRLQYDOL-
GDWHSURGXFWZDUUDQW\$OOZLULQJVKRXOGEHDFFRUGLQJWRQDWLRQDOZLULQJUHJXOD-
WLRQVThis product containsHOHFWURVWDWLFVHQVLWLYHFRPSRQHQWVWKDWFDQEHGDPDJHGLIKDQGOHGLQFRUUHFWO\7RSUHYHQWDQ\HOHFWURVWDWLFGDPDJHensure you are
electrically grounded / earthed in order to discharge any possible static elec-
WULFLW\EXLOGXS:KHQWKH(&%LVWXUQHGRIISXVKGRZQWKHSRZHUOHYHUZLWKRXWSUHVVLQJWKHWHVWEXWWRQLocally supplied wiring should be inserted through the inlets situated on the
WRSRIWKHF\OLQGHUXQLW5HIHUWR7DEOH!①⑦①②⑥④③④③⑦①②⑤⑤⑥②When confirming the operation of the ECB, make sure that the ECB can
be turned ON/OFF by the power lever before pressing the test button.
If the ECB cannot be turned ON/OFF by the power lever, stop using the
ECB and replace it.
)LJXUH!A&RQQHFWWKHSRZHUFDEOHIRUWKH&\OLQGHUXQLWWR7%…①③5HPRWHVHQVRUZLUH④6LJQDOLQSXWFDEOH⑤:LUHOHVVUHFHLYHURSWLRQ3$5:55(DQG
:L)LLQWHUIDFHRSWLRQ3$&:)(FDEOH⑥2XWSXWcable
①3RZHUcable
②&\OLQGHUXQLW2XWGRRUunit cable
⑦3RZHUcable for Booster heater
D
Connect the outdoor unit – cylinder unit connecting cable to TB2…②EConnect the power cable for the booster heater to ECB…⑦)Wiring should be fed down the left hand side of the control and electrical box
DQGFODPSHGLQSODFHXVLQJFOLSVSURYLGHGB
7KHZLUHVVKRXOGEHLQVHUWHGLQGLYLGXDOO\WKURXJKWKHFDEOHLQOHWVon the
control board)LJXUHC
3XOORXWWKHFRQWUROER[and run wires shown as
GRWWHGOLQHVEHKLQGLW5HIHUWRSDJH1RWH,QVWDOODQearth
cable longer than
RWKHUFDEOHVInstallation
4
WARNING
CAUTION
1RWHECB 3RZHUOHYHU
16
Installation
4
Description Power supply Capacity Breaker Wiring
Booster heater (Primary circuit) 230V N~ 50 Hz 2 kW 16 A *2 *3 3 × 2.5 mm²
Tightening torque
TB1 2.0 ~2.5 Nm
TB2 2.0 ~2.5 Nm
ECB 1.3 ~1.7 Nm
earth 2.0 ~2.5 Nm
*2. A breaker with at least 3.0 mm contact separation in each pole shall be provided.
The breaker shall be provided to ensure disconnection of all active phase conductors of the supply.
*3. Use a breaker with an over-current protection function.
*4. Max. 15 m
*5. The values given in the table above are not always measured against the ground value.
Cylinder unit power supply
Cylinder unit input capacity
Main switch (Breaker)
Wiring
Wiring No. × size (mm²)
Cylinder unit power supply (including earth cable)
Cylinder unit - Outdoor unit (including earth cable)
Circuit rating
Cylinder unit L - N
Cylinder unit - Outdoor unit S1 - S2
Cylinder unit - Outdoor unit S2 - S3
*2
*5
*5
*5
*4
~/N 230 V 50 Hz
20 A
3 × Min. 2.5
4 × Min. 2.5
230 V AC
230 V AC
24 V DC
Note: 1. Wiring size MUST comply with the applicable local and national codes.
2. Cylinder unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable. (Design 60245 IEC 57)
Cylinder unit power supply cables shall not be lighter than polychloroprene sheathed flexible cable. (Design 60227 IEC 53)
3. Install an earth longer than other cables.
4. Please keep enough output capacity of power supply for each heater. The lack of the power supply capacity may possibly cause chattering.
Outdoor unit powered via cylinder unit
<1 phase>
TB1
L
N
TB2
S1
S2
S3
Earth
leakage
circuit
breaker
*1
Cylinder unit
Outdoor unit
*1. Current sensitivity 10 mA, operating time 0.1 s.
If the installed earth leakage circuit breaker does not have an over-current protection function, install a breaker with that function along the same power line.
Power
supply
~/N
230 V
50 Hz
Wiring
circuit
breaker
or
Isolating
switch
ECB
L
N
Power
supply
~/N
230 V
50 Hz
Wiring
circuit
breaker
or
Isolating
switch
S1
S2
S3
For
booster
heater
(Primary circuit)
<Figure 4.5.2>
Electrical connections 1 phase
Isolating switch
17
5.1 DIP Switch Functions
<Figure 5.1.1>
Located on the FTC printed circuit board are 4 sets of small white switches
known as DIP switches. The DIP switch number is printed on the circuit board
next to the relevant switches. The word ON is printed on the circuit board and on
the DIP switch block itself. To move the switch you will need to use a pin or the
corner of a thin metal ruler or similar.
DIP switch settings are listed below in Table 5.1.1.
Before changing any switch settings, ensure the power supplies to both cylinder
unit and outdoor unit are turned OFF.
Before changing the DIP switch setting, confirm that the power supply earth
cable is securely connected and prevent the FTC from being applied with static
electricity (e.g. touch a case body etc.). Otherwise, it may cause a failure of the
FTC due to the static electricity.
Note: *1. For safety reasons, this function is not available for certain errors.
(In thatcase, system operation MUST be stopped and only the water circulation pump keeps running.)
*2. Space heating and DHW can be operated only in indoor unit, like an electric boiler. (Refer to "5.4 Indoor unit only operation". )
*3. If emergency mode is no longer required, return the switch to OFF position.
DIP switch Function OFF ON Default settings:
Indoor unit model
SW1 SW1-1 OFF
SW1-2 OFF
SW1-3 OFF
SW1-8 Wireless remote controller WITHOUT Wireless remote controller WITH Wireless remote controller OFF
SW2 SW2-1 Room thermostat1 input (IN1) logic change
Zone1 operation stop at thermostat short Zone1 operation stop at thermostat open
OFF
SW2-2 OFF
SW2-4 — —
—
—
—
——
——
OFF
SW2-5 Automatic switch to backup heat source operation
(When outdoor unit stops by error) Inactive Active *1 OFF
SW2-6 OFF
SW2-7 OFF
SW2-8 OFF
SW3 SW3-1 Room thermostat 2 input (IN6) logic change
Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open
OFF
SW3-2 OFF
SW3-3 OFF
SW3-4 Electric energy meter WITHOUT Electric energy meter WITH Electric energy meter OFF
SW3-5 OFF
SW3-6 2-zone valve ON/OFF control Inactive Active OFF
SW3-7
SW3-8 Heat meter WITHOUT Heat meter WITH Heat meter OFF
SW4 SW4-1 — — — OFF
SW4-2 — — — OFF
SW4-3 — — —
———
OFF
SW4-4
Indoor unit only operation (during installation work) *2
Inactive Active OFF
SW4-5 Emergency mode (Heater only operation) Normal
Emergency mode (Heater only operation)
OFF *3
SW4-6 OFF
<Table 5.1.1>
—
———
———
———
———
———
———
OFF
———
———
—
—
SW1-4 OFF———
SW1-5 OFF———
SW1-6 OFF———
SW1-7 OFF———
SW2-3 OFF———
SW1
SW2
SW3
SW4
OFF ON
1
8
1
8
1
8
1
6
System Set Up
5
18
5.2 Connecting inputs/outputs
When the wires are wired to adjacent terminals use ring terminals and insulate the wires.
<Figure 5.2.1>
Item Name
Signal input
function
Signal input
wire
Use sheathed vinyl coated cord or cable.
Max. 10 m
Wire type: CV, CVS or equivalent
Wire size: Stranded wire 0.13 mm² to 1.25 mm²
Solid wire: ø0.4 mm to ø1.2 mm
Switch Non-voltage “a” contact signals
Remote switch: minimum applicable load 12V DC, 1mA
Name Terminal block Connector Item Optional part model
TH1 — CN20 Thermistor (Room temp.) (Option) PAC-SE41TS-E
Ensure to wire thermistor wirings away from the power line and/or OUT3 to 13 wirings.
Do not splice the wiring to extend or shorten it, otherwise this could affect correct monitoring of each temperature.
If the wiring is too long, bundle it with a strap to adjust the length in the cylinder unit.(see the photograph on the right)
*1. The maximum length of the thermistor wiring out of the cylinder unit is 5 m.
When the wires are wired to adjacent terminals, use ring terminals and electrically insulate the wires.
Name Terminal block Connector Item OFF (Open) ON (Short)
IN1 TBI.1 3-4 — Room thermostat 1 input Refer to SW2-1 in <5.1 DIP Switch Functions>.
IN6 TBI.1 1-2 — Room thermostat 2 input Refer to SW3-1 in <5.1 DIP Switch Functions>.
IN8 TBI.1 5-6 — Electric energy meter 1
*1IN9 TBI.1 7-8 — Electric energy meter 2
IN10 TBI.1 9-10 — Heat meter
Ɣ3XOVHW\SHVoltage free contact for 12VDC detection by FTC (TBI.1 5, 7 and 9 pins have positive voltage.)
Ɣ3XOVHGXUDWLRQMinimum ON time: 40ms
Minimum OFF time: 100ms
Ɣ3RVVLEOHXQLWRISXOVH0.1 pulse/kwh 1 pulse/kwh 10 pulse/kwh
100 pulse/kwh 1000 pulse/kwh
Those values can be set by the main controller. (Refer to the menu tree in "5.7 Main Controller".)
Wiring specification and local supply parts
Model and specifications
*1. Connectable electric energy meter and heat meter
LED1
CN01
(WHT)
CN3C
(YLW)
CN20
(RED)
CN22
(BLU)
1
5
CNIT
(BLU)
1
5
CN105
(RED)
1
5
CNRF
(WHT)
CNW5
(WHT)
CNW12
(RED)
CNW3
(BLU)
CN2B
(YLW)
CN2A
(BLU)
1
3
CNPWM3
(RED)
1
3
CNPWM
(WHT)
1
4
CN1A
(WHT)
1
2
4
6
1
2
1
5
1
5
1
4
1
4
1
2
1
2
TBI.1
XBL
12 146108
137119
4
53
2
1
SW1
SW2
SW3
SW4
1
8
1
8
1
8
1
6
F1
10A 250V
F2
6.3A 250V
CN108
CNP1
(WHT)
1
3
CNPA
(RED)
1
3
CNV1
(WHT)
1
5
TBO.1
1
2
3
4
CNOUC
(BLU) CNBC
(GRY)
CNBH
(WHT)
1
3
CNOUT
(WHT)
2
4
CNBHT
(BLK)
1
4
1
3
1
7
LED4
TAB1
LED2
LED3
1
5
XBN
System Set Up
5
ŰSignal inputs
ŰThermistor inputs
Note: Before connecting a wire to the TBI.1, confirm that the power supply earth cable is securely
connected and prevent the FTC from being applied with static electricity (e.g. touch a case body etc.).
Otherwise, it may cause a failure of the FTC due to the static electricity.
19
1 2 34
TBO.1
LLNN
OUT3 OUT13
Note:
Item Name
External output function Outputs wire
Use sheathed vinyl coated cord or cable.
Max. 30 m
Wire type: CV, CVS or equivalent
Wire size: Stranded wire 0.25 mm² to 1.5 mm²
Solid wire: ø0.57 mm² to ø1.2 mm²
<Figure 5.2.2>
Too l To o l
Conductor
Conductor
Outline view Top view
How to use TBO.1
Connect them using either way as shown above.
1. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).
Wiring specification and local supply parts
Model and specifications
Name Terminal block Connector Item OFF ON Signal/Max current Max. total current
OUT3 TBO.1.1-2 — 2-way valve 2b output *1 OFF ON 230V AC 0.1A Max.
OUT13 TBO.1.3-4 — 2-way valve 2a output *1 OFF ON 230V AC 0.1A Max. 0.2A
*1 For 2-zone valve ON/OFF control.
System Set Up
5
ŰOutputs
20
2. DIP switch
Turn DIP switch 3-6 ON.
3. 2-way valve 2a (for Zone1) / 2-way valve 2b (for Zone2)
Electrically wire 2-way valve 2a and 2b to the appropriate external output terminals. (Refer to "External outputs" in 5.2)
5.3 2-zone valve ON/OFF control
5.4 Indoor unit only operation (during installation work)
1. Pipework 1. Zone1 2-way valve 2a (local supply)
2. Zone2 2-way valve 2b (local supply)
3. Auto by-pass valve (local supply) *1
Note:
4. Room thermostat connection
Opening /closing 2-way valve provides a simple 2-Zone control.
Flow temperature is common for Zone1 and 2.
In the case when DHW or heating operation is required prior to connection of the outdoor unit; i.e. during installation work,
the booster heater
in
cylinder
unit can feasibly
be engaged as the sole heat source (short - term operating condition).
For this scenario, the installer will have to form a temporary pipe loop connection across cylinder's heat pump connections.
1. To start operation
Ɣ&KHFNLIWKHLQGRRUXQLWSRZHUVXSSO\LV2))DQGWXUQ',3VZLWFKDQG21Ɣ7XUQ21WKHLQGRRUXQLWSRZHUVXSSO\2. To end operation*
Ɣ7XUQ2))WKHLQGRRUXQLWSRZHUVXSSO\Ɣ7XUQ',3VZLWFKDQG2))*When the indoor unit only operation is ended, ensure to check over the settings after outdoor unit is properly connected and ready for use.
Heating operation mode Zone1 Zone2
Room temp. control
(Auto adaptation) *2
&RPSHQVDWLRQFXUYHRUIORZWHPSFRQWUROƔ:LUHOHVVUHPRWHFRQWUROOHURSWLRQƔ5RRPWHPSHUDWXUHWKHUPLVWRURSWLRQƔ:LUHOHVVUHPRWHFRQWUROOHURSWLRQƔ:LUHOHVVUHPRWHFRQWUROOHURSWLRQ*3
Ɣ5RRPWHPSHUDWXUHWKHUPRVWDWORFDOVXSSO\Ɣ:LUHOHVVUHPRWHFRQWUROOHURSWLRQ*3
Ɣ5RRPWHPSHUDWXUHWKHUPRVWDWORFDOVXSSO\*2 Ensure to install the room thermostat for Zone1 in main room since the Room temp. control for Zone1 is prioritized.
*3 In this case, the wireless remote controller can be used as a thermostat.
1
3
2
Zone1
Zone2
*1 For safety protection, it is recommended to install an auto by-pass
valve.
Note:
1. Prolonged running of this mode of operation may affect the life of the booster heater.
2. When the indoor unit only operation is engaged, if the Water circulation pump 1 is set on low speed, DHW supply temperature may become higher
than the desired water temperature set on the main controller.
System Set Up
5
Freeze stat function is deactivated whilst this control is ON.
Therefore, ensure that anti-freeze solution is used to minimise
freezing risk. For anti-freeze instruction, see page 11.
21
FTC
FTC
20.0°C
FTC
20.0°C
20.0°C
20.0°C
20.0°C
Outdoor unit
Wireless receiver
(option)
Main controller
Wireless remote controller
(option)
Main controller
Main controller
FTC
Max. 8
Room
Cylinder unit
Room temperature
thermistor (option)
Cylinder unit
Cylinder unit
Room
Room
5.5 Remote Controller Options Factory supplied standard
Outdoor unit
Cylinder unit
Control option B
Room temperature
thermostat
(local supply)
Control option A
This option features the main controller and the Mitsubishi Electric wireless remote
controller. The wireless remote controller is used to monitor room temperature and
can be used to make changes to the space heating settings, boost DHW and switch
to holiday mode without having to directly use the main controller.
If more than one wireless remote controller is used, the most recently requested
temperature setting will commonly be applied to all rooms by the central control
system regardless of which wireless remote controller was used. No hierarchy exists
across these remote controllers.
Wire the wireless receiver to FTC by referring to the wireless remote controller
instruction manual. Turn DIP SW1-8 to ON. Before operation configure the wireless
remote controller to transmit and receive data by referring to the wireless remote
controller installation manual.
This option features the main controller and the Mitsubishi Electric thermistor wired
to FTC. The thermistor is used to monitor room temperature but can not make any
changes in control operation. Any changes to DHW MUST be made using the main
controller mounted on the cylinder unit.
Wire the thermistor to the TH1 connector on FTC.
The number of room temperature thermistors that can be connected to FTC is
always one.
Control option C (Flow temp. or compensation curve only)
This option features the main controller and a locally supplied thermostat wired to
FTC.The thermostat is used to set the maximum temperature for heating room. Any
changes to DHW MUST be made using main controller mounted on the cylinder
unit.
The thermostat is wired to IN1 in TBI.1 on FTC. The number of thermostats that can
be connected to FTC is always one.
In such a case, the system would also necessitate wireless receiver on cylinder unit
to receive the remote controller's signal / feedback.
A single wireless remote controller may also be used as a thermostat (rather
than a room thermostat).
The cylinder unit comes factory fitted with a main controller. This incorporates a thermistor for
temperature monitoring and a graphical user interface to enable set-up, view current status
and input scheduling functions. The main controller is also used for servicing purposes.
This facility is accessed via password protected service menus.
To provide the best efficiency Mitsubishi Electric recommends using automatic adaptation
function based on room temperature. To use this function a room thermistor needs to be
present in a main living area. This can be done in a number of ways the most convenient are
detailed below.
Refer to heating section of this manual for instructions on how to set compensation
curve, Flow temp. or Room temp. (Auto adaptation).
For instructions on how to set the thermistor input for the FTC please refer to Initial
settings section.
The factory setting for space heating mode is set to Room temp. (auto adaptation). If there
is no room sensor present in the system, this setting MUST be changed to either Compen-
sation curve mode or Flow temp. mode.
Outdoor unit
Outdoor unit
Note:
2-zone temperature control is not available.
2-zone valve on/off control is available.
System Set Up
5
Ű1-zone temperature control
22
(a) For insertion, push on the SD memory card until it clicks into place.
(b) For ejection, push on the SD memory card until it clicks.
Note:
Logos
Capacities
2 GB to 32 GB *2
SD speed classes
All
5.6 Using SD memory card
<Handling precautions>
Manufacturer Model Tested in
Silicon Power SP004GBSDH004V10 Jan. 2015
Before using a new SD memory card (including the card that comes with the
unit), always check that the SD memory card can be safely read and written to
by the FTC controller.
<How to check read and write operations>
a) Check for correct wiring of power supply to the system. For more details,
refer to section 4.5.
(Do NOT power on the system at this point.)
b) Insert an SD memory card.
c) Power on the system.
d) The LED4 lamp lights up if the read and write operations are successfully
completed. If the LED4 lamp continues blinking or does not light up, the
SD memory card cannot be read or written to by the FTC controller.
(a)
(b)
7KH6'/RJRLVDWUDGHPDUNRI6'&//&7KHPLQL6'ORJRLVDWUDGHPDUNRI6'&//&7KHPLFUR6'ORJRLVDWUDGHPDUNRI6'&//&*1 To edit main controller settings or to check operating data, an Ecodan
service tool (for use with PC) is required.
$*%6'PHPRU\FDUGVWRUHVXSWRGD\VRIRSHUDWLRQORJV(1) Use an SD memory card that complies with the SD standards. Check that the
SD memory card has a logo on it as those shown on lower right figure.
(2) SD memory cards to the SD standards include SD, SDHC, miniSD, micro SD,
and microSDHC memory cards. The capacities are available up to 32 GB.
Choose that with a maximum allowable temperature of 55ºC.
(3) When the SD memory card is a miniSD, miniSDHC, microSD, or micro SDHC
memory card, use an SD memory card converter adapter.
%HIRUHZULWLQJWRWKH6'PHPRU\FDUGUHOHDVHWKHZULWHSURWHFWVZLWFKThe cylinder unit is equipped with an SD memory card interface in FTC.
Using an SD memory card can simplify main controller settings and can store
operating logs. *1
(5) Before inserting or ejecting an SD memory card, make sure to power OFF the
system. If an SD memory card is inserted or ejected with the system powered
ON, the stored data could be corrupted or the SD memory card be damaged.
*An SD memory card is live for a short duration after the system is powered
off. Before insertion or ejection wait until the LED lamps on the FTC control
board are all off.
(6) The read and write operations have been verified using the following SD
memory cards, however, these operations are not always guaranteed as the
specifications of these SD memory cards could change.
(7) Make sure to follow the instruction and the requirement of the SD memory
card’s manufacturer.
(8) Format the SD memory card if determined unreadable in step (6). This could
make it readable.
Download an SD card formatter from the following site.
SD Association homepage: https://www.sdcard.org/home/
(9) FTC supports FAT file system but not NTFS file system.
(10) Mitsubishi Electric is not liable for any damages, in whole or in part, including
failure of writing to an SD memory card, and corruption and loss of the saved
data, or the like. Back up saved data as necessary.
(11) Do not touch any electronic parts on the FTC control board when inserting or
ejecting an SD memory card, or else the control board could fail.
To avoid cutting fingers, do not touch sharp edges of the SD
memory card connector (CN108) on the FTC control board.
CN108
System Set Up
5
Note: Before inserting or ejecting an SD memory card, confirm that the power supply
earth cable is securely connected and prevent the FTC from being applied with
static electricity (e.g. touch a case body etc.). Otherwise, it may cause a failure of
the FTC due to the static electricity.
23
F1 F2 F3 F4
B C D
E
A
5.7 Main Controller
<Main controller parts>
Letter Name Function
A Screen Screen in which all information is displayed
B Menu Access to system settings for initial set up and
modifications.
C Back Return to previous menu.
D Used to select or save. (Enter key)
E Power/Holiday
Confirm
If system is switched off pressing once will turn
system on. Pressing again when system is
switched on will enable Holiday Mode. Holding the
button down for 3 secs will turn the system off. (*1)
F1-4 Function keys Used to scroll through menu and adjust settings.
Function is determined by the menu screen visible
on screen A.
*1
When the system is switched off or the power supply is disconnected, the
cylinder unit protection functions (e.g. freeze stat function) will NOT oper-
ate. Please beware that without these safety functions enabled the cylinder
unit and installation may potentially become exposed to damage.
System Set Up
5
Main screen
<Main screen icons>
Icon Description
11 10 21
9
654
14 13
12
7
1Heat pump ‘Heat pump’ is running.
Defrosting.
Emergency heating.
2Electric heater When this icon is displayed the ‘Electric heaters’
(booster heater) are in use.
3Target
temperature Target room temperature
Target flow temperature
Compensation curve
4OPTION Pressing the function button below this icon will dis-
play the option screen.
5+ Increase desired temperature.
6- Decrease desired temperature.
7Z1 Z2 Pressing the function button below this icon switches
between Zone1 and Zone2.
Information Pressing the function button below this icon displays
the information screen.
8Space heating
mode
Heating mode
Zone1 or Zone2
9DHW mode Domestic hot water heating mode
10 Holiday mode
When this icon is displayed ‘Holiday mode’ activated.
11 Timer is activated.
Prohibited
Server control is activated.
Stand-by
Stopped
Operating
12 Current
temperature
Current room temperature
Current water temperature of thermal store tank
13 The Menu button is locked or the switching of the
operation modes between DHW and Heating opera-
tions are disabled in the Option screen.(*2)
14 SD memory card is inserted. Normal operation.
SD memory card is inserted. Abnormal operation.
*2 To lock or unlock the Menu, press the BACK and CONFIRM keys
simultaneously for 3 seconds.
3
8
24
System Set Up
5
ŰSetting the Main Controller
After the power has been connected to the outdoor and cylinder units (See chapter 4.5) the initial system settings can be entered via the main controller.
General Operation
ź
ź
User Level – Short press
Installer Level – Long press
The following items can be viewed and/or edited (dependent on access level). Main menu
Long Press
'RPHVWLF+RWZDWHU'+:+HDWLQJ6FKHGXOHWLPHU+ROLGD\PRGH,QLWLDOVHWWLQJV6HUYLFH3DVVZRUGSURWHFWHGƔ7RILQGWKHLFRQWKDW\RXZLVKWRVHWXVHWKH)DQG)EXWWRQVWRPRYHEHWZHHQWKHLFRQVƔ7KHKLJKOLJKWHGLFRQZLOODSSHDUDVDODUJHUYHUVLRQRIWKHFHQWHURIWKHVFUHHQƔ3UHVV&21),50WRVHOHFWDQGHGLWWKHKLJKOLJKWHGPRGHƔ
)ROORZWKH0DLQ&RQWUROOHU0HQX7UHH!IRUIXUWKHUVHWWLQJXVLQJEXWWRQVIRUVFUROOLQJRU)WR)IRUVHOHFWLQJ
.
&KHFNDOOEUHDNHUVDQGRWKHUVDIHW\GHYLFHVDUHFRUUHFWO\LQVWDOOHGDQGWXUQRQSRZHUWRWKHV\VWHP2. :KHQWKHPDLQFRQWUROOHULVVZLWFKHGRQIRUWKHILUVWWLPHWKHVFUHHQDXWRPDWLFDOO\JRHVWR,QLWLDOVHWWLQJVPHQX'DWH7LPHVHWWLQJVFUHHQ0DLQFRQWUROOHUZLOODXWRPDWLFDOO\VWDUWXS:DLWDSSUR[LPDWHO\one minute whilst the control menus load.
:KHQWKHFRQWUROOHULVUHDG\DEODQNVFUHHQZLWKDOLQHUXQQLQJDFURVVWKHWRSZLOOEHGLVSOD\HG5. Press button E (Power) (UHIHUWRSDJHWRWXUQRQWKHV\VWHP%HIRUHWXUQLQJRQWKHV\VWHPSHUIRUPLQLWLDOVHWWLQJVDVLQVWUXFWHGEHORZ,IWKH0(18EXWWRQLVSUHVVHGRQFHIRUDVKRUWWLPHWKHPDLQVHWWLQJVZLOOEHdisplayed but without the edit function. This will enable the user to view current
settings but NOT change the parameters.
,IWKH0(18EXWWRQLVSUHVVHGGRZQIRUVHFVWKHPDLQVHWWLQJVZLOOEHGLVSOD\HGwith all functionality available.
7KHPDLQVHWWLQJVPHQXFDQEHDFFHVVHGE\SUHVVLQJWKH0(18EXWWRQ7RUHGXFHWKHULVNRIXQWUDLQHGHQGXVHUVDOWHULQJWKHVHWWLQJVDFFLGHQWDOO\WKHUHDUHtwo access levels to the main settings; and the service section menu is password
protected.
ŰMain Settings Menu
25
(
EDIT
)
DHW F2
<Main Controller Menu Tree> Unrestricted access
Installer only
Main
menu
Main
menu
Main screen
Initial
Information
Option
F1
F4 Forced DHW
Hot Water (DHW)
<See section>
<See section>
<See section>
<See section>
<See section>
Menu
Long Press
Short Press
Heating
Holiday
mode
Initial
settings
Schedule timer
(Zone1)
(
PREVIEW
)
(
EDIT
)
(
EDIT
)
Schedule2 period
preview screen
Schedule2 period setting screen1 Term setting
Schedule1/2 select
F4
Schedule timer preview
F4
Schedule timer preview
F4
Schedule timer preview
F4
Schedule timer preview
F4 Schedule timer preview
F4 Schedule timer preview
Zone1
Zone1 Curve parameters
Adjustment
Zone1
Zone2
Zone2
Day
select
Day
select
Day
select
Day
select
Day
select
Day
select
Time select
Time select
Time select
Time select
Temp.setting
Temp.setting
Temp.setting
Temp.setting
Schedule1
Schedule2
Heating
Heating
DHW
DHW
ON ( )/OFF
DHW ON ( )/Prohibited ( )/Timer ( )
Heating ON ( )/Prohibited ( )/Timer ( )
Room temp.( ) / Flow temp.( )/ Compensation curve( )
Compensation curve preview
Compensation curve edit
F1
F1
F2
F2 F4
F3
F3
F4
F3
F4
F3
F4
F2
F3
F4
DHW
Date/Time yyyy/mm/dd/hh:mm
OFF/Room/Tank/Room&Tank
OFF/ON
hh:mm/hh:mm AM/AM hh:mm
°C/°F
Room RC zone select
Sensor setting
Zone1
Zone1
Zone2
Holiday menu
Heating room temp.
Heating room temp.
Zone2
Sensor setting
Sensor setting
Select Time/Zone
Select Time/Zone
TH1/Main RC/
Room RC1-8/ “Time/
Zone”
TH1/Main controller/
Room RC1-8/ “Time/
Zone”
Time setting
Time setting
Sensor setting
Sensor setting
Summer time
Temp. display
Contact number
Time display
°C/°F
Room sensor settings
Heating
Active/Non active
Active/Non active
Long press
(
EDIT
)
F1 F2 Zone1/2 select
F1 F2
Zone1/2 select
<Continued to next page.>
Zone1/2 select
Zone1/2 select
save
save
save
save
save
save
save
Time select
Time select
F1
F1
DHW supply max. temp.
DHW supply max. temp. drop
DHW max. operation time
DHW mode restriction
DHW storage volume
Consumed electrical energy
Delivered energy
System Set Up
5
26
Main
menu
<Continued from the previous page.>
<Main Controller Menu Tree> Unrestricted access
Installer only
Main screen
Initial
Main
menu
Service
Password
protected
Manual operation
Function settings
Thermistor adjustment
Economy settings for pump
Electric heater (Heating)
Standard (Heat pump & electric heater)/Heater (Electric heater only)
Freeze stat function
Energy monitor
settings
Running information
Thermistor reading
Summary of settings
Error history
Password protection
Manual reset
SD card
Heating
operation
H/P thermo diff.adjust
Flow temp.range
Room temp.control
Auxiliary settings
Heat source setting
Pump speed
Operation settings
ON/OFF
Delay
ON/OFF
Delay
Flow t.
Outdoor ambient temp.
Electric heater
capacity
Main controller
SD
Yes/No
Select download data
FTC
Main RC SD
Yes/No
Select upload data
Water pump input
Electric energy meter
Booster heater 1 capacity
Pump 1
Min.temp.
ON/OFF
Mode
Interval
Flow rate setting(Heating) Mode
Flow rate
Max.temp.
Lower limit
Upper limit
<See section>
Menu
Delivered energy adjustment
Heat meter
Main RC
Long press
F1 F2 F3
F1 F2 F3
System Set Up
5
Long Press
Short Press
27
Time/Zone schedule setting screen
Preview screen
Schedule timer
Setting the schedule timer
Ź)RUIXUWKHUGHWDLODERXWRSHUDWLRQUHIHUWR2SHUDWLRQPDQXDOŹ)RUIXUWKHUGHWDLODERXWRSHUDWLRQUHIHUWR2SHUDWLRQPDQXDODomestic Hot Water (DHW)
Heating
Holiday mode
Ź)RUIXUWKHUGHWDLODERXWRSHUDWLRQUHIHUWR2SHUDWLRQPDQXDOMenu subtitle Description
Room RC zone
select
Sensor setting &RQWURORSWLRQ(SDJH)
CorresSRQGLQJinitLDOsettings room
sensor
=RQHZone 2
A5RRP5&RQHHDFKIRU=RQHDQG=RQHB7+CWhen diIIHUHQWURRPVHQVRUVDUHXVHGDFFRUGLQJWRWKHWLPHschedule
Time/ Zone*2
)URPWKH,QLWLDOVHWWLQJVPHQXWKHLQVWDOOHUFDQVHWWKHIROORZLQJ)ROORZWKHSURFHGXUHGHVFULEHGLQ*HQHUDO2SHUDWLRQIRUWKHVHWXSRSHUDWLRQ<Room sensor settings>
Initial Settings
7KHVFKHGXOHWLPHUIRUVSDFHKHDWLQJDQG'+:DUHVHWLQWKHVDPHZD\+RZHYHUIRU'+:RQO\WLPHFDQEHXVHGDVVFKHGXOLQJYDULDEOH$VPDOOUXEELVKELQFKDUDFWHULVDOVRGLVSOD\HGFKRRVLQJWKLVLFRQZLOOGHOHWHWKHODVWXQVDYHGDFWLRQ,WLVQHFHVVDU\WRXVHWKH6$9(IXQFWLRQ)EXWWRQWRVDYHVHWWLQJV&21),50GRHVQRWDFWDV6$9(IRUWKLVPHQX'DWH7LPH6XPPHUWLPH7HPSGLVSOD\&RQWDFWQXPEHU7LPHGLVSOD\&)5RRPVHQVRUVHWWLQJV:KHQ]RQHYDOYHRQRIIFRQWUROLVDFWLYHDQGZLUHOHVVUHPRWHFRQWUROOHUVDUHDYDLODEOHIURP5RRP5&]RQHVHOHFWVFUHHQselect zone 1RWRDVVLJQWRHDFKUHPRWHFRQWUROOHU)URPVHQVRUVHWWLQJVFUHHQVHOHFWDURRPVHQVRUWREHXVHGIRUPRQLWRULQJWKHURRPWHPSHUDWXUHIURP=RQHDQG=RQHVHSDUDWHO\)RUURRPVHQVRUVHWWLQJVLWLVLPSRUWDQWWRFKRRVHWKHFRUUHFWURRPVHQVRUGHSHQGLQJRQWKHKHDWLQJPRGHWKHV\VWHPZLOORSHUDWHLQ1RWVSHFLILHGLIDORFDOO\VXSSOLHGURRPWKHUPRVWDWLVXVHG5RRP5&RQHHDFKIRU=RQHDQG=RQHLIDZLUHOHVVUHPRWHFRQWUROOHULVXVHGDVDURRPWKHUPRVWDW)URPVHQVRUVHWWLQJVFUHHQVHOHFW7LPH=RQHWRPDNHLWSRVVLEOHWRXVHGLIIHUHQWURRPVHQVRUVDFFRUGLQJWRWKHWLPHVFKHGXOHVHWLQWKH6HOHFW7LPH=RQHPHQX7KHURRPVHQVRUVFDQEHVZLWFKHGXSWRWLPHVZLWKLQKRXUV6FKHGXOHGWLPHUFDQEHVHWLQWZRZD\VIRUH[DPSOHRQHIRUVXPPHUDQGWKHRWKHUIRUZLQWHU5HIHUWRDV6FKHGXOHDQG6FKHGXOHUHVSHFWLYHO\2QFHWKHWHUPPRQWKVIRUWKH6FKHGXOHLVVSHFLILHGUHVWRIWKHWHUPZLOOEHVSHFLILHGDV6FKHGXOH,QHDFK6FKHGXOHDQRSHUDWLRQDOSDWWHUQRIPRGHV+HDWLQJ'+:FDQEHVHW,IQRRSHUDWLRQDOSDWWHUQLVVHWIRU6FKHGXOHRQO\WKHSDWWHUQIRU6FKHGXOHZLOOEHYDOLG,I6FKHGXOHLVVHWWRIXOO\HDULH0DUFKWR)HERQO\WKHRSHUDWLRQDOSDWWHUQIRU6FKHGXOHZLOOEHYDOLG)ROORZWKHSURFHGXUHGHVFULEHGLQ*HQHUDO2SHUDWLRQ3DJH)IRUWKHVHWXSRSHUDWLRQ7KHSUHYLHZVFUHHQDOORZV\RXWRYLHZWKHFXUUHQWVHWWLQJV,Q]RQHKHDWLQJRSHUDWLRQSUHVV)WRVZLWFKEHWZHHQ=RQHDQG=RQH'D\VRIWKHZHHNDUHGLVSOD\HGDFURVVWKHWRSRIWKHVFUHHQ:KHUHGD\DSSHDUVXQGHUOLQHGWKHVHWWLQJVDUHWKHVDPHIRUDOOWKRVHGD\VXQGHUOLQHG+RXUVRIWKHGD\DQGQLJKWDUHUHSUHVHQWHGDVDEDUDFURVVWKHPDLQSDUWRIWKHVFUHHQ:KHUHWKHEDULVVROLGEODFNVSDFHKHDWLQJ'+:ZKLFKHYHULVVHOHFWHGLVDOORZHG:KHQVFKHGXOLQJKHDWLQJEXWWRQ)FKDQJHVWKHVFKHGXOHGYDULDEOHEHWZHHQWLPHDQGWHPSHUDWXUH7KLVHQDEOHVDORZHUWHPSHUDWXUHWREHVHWIRUDQXPEHURIKRXUVHJDORZHUWHPSHUDWXUHPD\EHUHTXLUHGDWQLJKWZKHQWKHRFFXSDQWVDUHVOHHSLQJ
System Set Up
5
28
Manual operation menu screen
Auxiliary settings menu screen
The service menu provides functions for use by installer or service engineer. It is NOT intended the home owner alters settings within this menu. It is for this reason
password protection is required to prevent unauthorised access to the service settings.
The factory default password is "0000".
Follow the procedure described in General Operation for the set up operation.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Manual operation
Auxiliary settings
Heat source setting
Pump speed
Operation settings
Energy monitor settings
Password protection
Manual reset
SD card
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Manual operation
Function settings
Thermistor adjustment
Auxiliary settings
Heat source setting
Pump speed
Operation settings
Energy monitor settings
Running information
Thermistor reading
Summary of settings
Error history
Password protection
Manual reset
SD card
Service Menu
<Manual operation>
Ź([DPSOH
<Auxiliary settings>
This function is used to set the parameters for any auxiliary parts used in the system
Menu subtitle Function/ Description
Economy settings for
pump
Delay Time before pump switches off*1
Electric heater
(Heating)
Delay
*1. Decreasing "time before pump switched off" may increase the duration of stand-by in Heating mode.
<Heat source setting>
The default heat source setting is heat pump and booster heater present in the system to be operational.
This is referred to as Standard operation on the menu.
Being engaged Error
indication
Information on the other functions can be found by consulting the Service Manual.
Water pump stops automatically a specified period of time from when operation isfinished.
The minimum time required for the booster heater to turn ON after Heating mode
has started.
To select "WITH booster heater (ON)" or "WITHOUT booster heater (OFF)" in
Heating mode.
Pressing F3 /D button will switch manual operation mode ON for the main 3-way valve. When filling of
the thermal store tank is complete the installer should access this menu again and press F3 /D to
deactivate manual operation of the part. Alternatively after 2 hours manual operation mode will no
longer be active and FTC will resume control of the part.
During the filling of the system the water circulation pump and 3-way valve can be manually overridden
using manual operation mode.
When manual operation is selected a small timer icon appears in the screen. The function selected will
only remain in manual operation for a maximum of 2 hours. This is to prevent accidental permanent
override of the FTC.
Many functions can not be set whilst the indoor unit is running. The installer should turn off the unit before trying to set these functions. If the installer attempts to
change the settings whilst the unit is running the main controller will display a reminder message prompting the installer to stop operation before continuing. By select-
ing “Yes” the unit will cease operation.
The service menu is navigated using the F1 and F2 buttons to scroll through
the functions. The menu is split across several screens and is comprised of the
following functions;
In this Installation Manual, instructions will be given only for the following
functions;
System Set Up
5
Being considered
(before selection)
29
System Set Up
5
<Operation settings>
Heating operation
1. Heating operation for auto adaptation mode
Menu subtitle Function Range Unit Default
Flow temp. range Minimum temp. To minimize the loss by frequent ON and OFF in mild outdoor ambient
temperature seasons.
To set max. possible flow temperature according to the type of heat emitters.
Allows heat pump operation until the flow temperature rises above the
target flow temperature plus upper limit value.
Prohibits heat pump operation until the flow temperature drops below the
target flow temperature plus lower limit value.
To minimize the loss by frequent ON and OFF in mild outdoor ambient-
temperature seasons.
Selectable according to the heat emitter type and the materials of floor (i.e.
radiators, floor heating-thick, -thin concrete, wood, etc.)
Setting for Room temp. control
At Fast mode, target outlet water temperature is set higher than the one
set at normal mode. This reduces the time to reach the target room-
temperature when the room temperature is relatively low.*
25 - 45 ºC 40
Maximum temp. 35 - 60 ºC 50
Room temp. control Mode Normal/
Fast
-- Normal
Interval 10 ~ 60 mins. 10
Heat pump thermo diff.adjust On/Off On/Off — On
Lower limit ííºC íUpper limit +3 - +15 ºC +9
<Table 5.7.1> Heating operation(Room temp.control table)
Note:
This function allows operational setting of flow temperature range from the Ecodan and also the time interval at which the FTC collects and processes data for the auto
adaptation mode.
1. The minimum flow temperature that prohibits heat pump operation is 20ºC.
2. The maximum flow temperature that allows heat pump operation equals to the maximum temperature set in the Flow temp. range menu.
* Fast mode is not most efficient and will result in increased running cost when compared to normal mode.
* In case of “Compensation curve mode” or “Flow temp. mode” selected, even if flow rate setting is “Auto” mode,flow rate will be fixed at “7.0 L/min”.
Freeze stat function
Menu subtitle Function/ Description
Freeze stat function An operational function to prevent the water circuit from freezing when outdoor ambient temperature drops.
Flow t. The target outlet water temperature at water circuit when operating in Freeze stat function.
Outdoor ambient temp. Minimum outdoor ambient temperature which freeze stat function will begin to operate,
(3 - 20ºC) or choose**. If asterisk (**) is chosen freeze stat function is deactivated. (i.e. primary water freeze risk)"
Note:
Note:
Recommended flow rate setting at Manual mode is listed below.
1. When the system is turned off, freeze stat function is not enabled.
2. Flow t. is fixed at 20ºC and unchangeable.
2.Heating operation for auto adaptation, compensation curve, and flow temp. control
Menu subtitle Function Range Unit Default
Auto mode automatically selects a flow rate from 3 to 7 L/min appropriate
for effective operation according to Room temp. control. Manual mode
targets Flow rate setting value.
※Select Manual mode except for Room temp. control.
Flow rate setting Mode Auto */
Manual
—Auto
Flow rate 3 - 8 L/min 7
<Table 5.7.2>
Select the target circulation flow rate for heating at Manual mode.
※Be aware of the shortage of required flow rate for each heat emitters.
・When the Flow temp. is high (e.g. radiator) recommended flow rate is low
・When the Flow temp. is low (e.g. underfloor heating) recommended flow rate is high.
・Low flow rate setting with low flow temp. may cause frequent ON/OFF operation of pump.
30
System Set Up
5
Password input screen
Password verify screen
<Energy monitor settings>
<Password protection>
Resetting the password
<Manual reset>
<SD card>
In this menu, all parameters required to record the consumed electrical energy and
the delivered heat energy which is displayed on the main controller can be set.The
parameters are an electric booster heater capacity, supply power of water pumps
and heat meter pulse.
Follow the procedure described in General Operation for the set up operation.
For Pump 1, *** can be also set besides this setting.
In the case *** is selected, the system acknowledges "factory fitted pump" is
selected.
Refer to the section [Energy Monitor] in "3. Technical Information"
Password protection is available to prevent unauthorised access to the service
menu by untrained persons.
If you forget the password you entered, or have to service a unit somebody else
installed, you can reset the password to the factory default of 0000.
The use of an SD memory card simplifies the main controller settings in the field.
*Ecodan service tool (for use with PC tool) is necessary for the setting.
Should you wish to restore the factory settings at any time, you should use the
manual reset function. However, please note this will reset ALL functions to the
factory default settings.
1.From the main settings menu scroll down the functions until Service Menu is
highlighted.
2.Press CONFIRM.
3.You will be prompted to enter a password.
4.Hold down buttons F3 and F4 together for 3 secs.
5.You will be asked if you wish to continue and reset the password to default
setting.
6.To reset press button F3.
7.The password is now reset to 0000.
31
Commissioning
6
Ű3UHFRPPLVVLRQLQJH[HUFLVHVVHFRQGDU\SRWDEOHFLUFXLWŰ&RPPLVVLRQLQJH[HUFLVHVInitial fill and flush procedure:
Ensure all pipe joints and fittings are tight and secure.
Open the most distant DHW tap/outlet.
Slowly/gradually open the mains water supply to begin filling the secondary (potable) circuit / pipework.
Allow most distant tap to run free and release/purge residual air and any impurities that may have resulted from the installation work.
Close tap/outlet to retain fully charged system and resume system commissioning.
Energise system to heat-up cylinder unit.
Open the most distant tap and confirm that hot water is smoothly delivered.
32
Service and Maintenance
7
Fault symptom Possible cause Solution
Cold water at taps
DHW is scheduled "OFF" Check schedule settings and change if necessary.
Ensure DHW mode is operating and wait for thermal store tank to re-heat.
Heat pump or booster heater not working Contact installer.
Supply flow rate is low Increase the delivery amount. (open tap further.)
Flow sensor jam / defect Contact installer.
Heating system does not get up
to set temperature.
Prohibit, schedule or holiday mode selected Check settings and change as appropriate.
Incorrectly sized radiatorsor low flow rate setting Contact installer.
The room in which the temperature sensor is located is at
a different temperature to the rest of the house.
Reposition the temperature sensor to a more suitable room.
Check the battery power and replace if flat.Battery problem *wireless control only
Heat emitter is hot in the DHW
mode. (The room temperature
rises.)
Contact installer.
Schedule function inhibits the
system from operating but the
outdoor unit is operational.
Freeze stat function may be active, to prevent freezing. Normal operation no action necessary.
Pump runs without reason for
short time.
Pump jam prevention control routine to inhibit the build up
of scale.
Normal operation no action necessary.
Mechanical noise (minor) heard
coming from cylinder unit
Booster heater switching on/off Normal operation no action required.
3-way valve changing position between DHW and heating
mode.
Normal operation no action necessary.
Noisy pipework Air trapped in the system
Try bleeding radiators (if present) If the symptoms persist contact installer.
Abnormal cylinder noise during
delivery of domestic hot water
supply
Open the air vent above pump A (refer to page 12). If the symptoms
persist contact installer.
Loosely supported pipe work. Contact installer.
Water discharges from one of the
pressure relief valves
The system has overheated or overpressurised
Switch off power to the cylinder unit and the booster heater then contact
installer.
Small amounts of water drip from
one of the pressure relief valves.
Dirt may be preventing proper tight seal in the valve
An error code appears in the
main controller display.
<Power failure>
All setting will be saved for 1 week with no power, after 1 week Date/Time ONLY will be saved.
For more details, refer to the service manual.
The indoor cylinder unit is UNVENTED. Under UK law* the system MUST be
serviced once a year by a qualified individual. Servicing and maintenance of the
outdoor unit should only be done by a Mitsubishi Electric trained technician with
relevant qualifications and experience. Any electrical work should be done by a
tradesperson with the appropriate electrical qualifications. Any maintenance or
‘DIY’ fixes done by a non-accredited person could invalidate the Warranty
and/or result in damage to the cylinder unit and injury to the person.
* Building regulations – England & Wales Part G3, Scotland P3, Northern
Ireland P5.
System or power input is OFF. Turn on the power/system.
Air exists within pump A Open the air vent above pump A (refer to page 12).
Pump operates during hot water supply Normal operation no action necessary.
Twist the valve cap in the direction indicted until a click is heard. This will
release a small amount of water flushing dirt from the valve. Be very careful
the water released will be hot. Should the valve continue to drip contact
installer as the rubber seal may be damaged and need replacing.
Make a note of the error code number plus any other observation(s) and
contact installer.
<Draining the cylinder unit and its primary heating circuit (local)>
WARNING:DRAINED WATER MAY BE VERY HOT
1.Before attempting to drain the cylinder unit isolate from the electrical supply to prevent the booster heaters burning out.
When the ECB is turned off, push down the power lever without pressing the test button.
2.Isolate cold water feed to secondary (potable) circuit.
3.Attach a hose to the drain cock (No.4 on the front side of heat exchanger shown in Figure 3. 2).*1
Open a hot water tap to start draining without a vacuum.
Open the drain cock of the heat exchanger .
4.When the secondary (potable) circuit is drained close drain cock and hot tap.
5.Draining procedure of the thermal store tank (primary circuit) is as follows.
(1) Open the cap of the pressure relief valve to reduce the pressure of the thermal store tank to 0 bar.
(2) Attach a hose to the manual air vent (No. 12 above the thermal store tank shown in Figure 3.2).*1
Open the manual air vent.
(3) Check that the pump valves and the strainer valve are opened.
Open the drain valve (No.13 shown in Figure 3. 2) to drain the water in the thermal store tank.
(4) Open all other drain cocks. (No.3 shown in Figure 3.2 and drain cocks of outdoor unit)
(5) Water remains in the strainer still after the cylinder unit was drained. Drain the strainer by removing the strainer cover.
*1. The hose should be able to withstand heat as the draining water could be very hot.
ŰBasic Troubleshooting for Cylinder Unit
The following table is to be used as a guide to possible problems. It is not exhaustive and all problems should be investigated by the installer or another competent
person. Users should not attempt to repair the system themselves.
At no time should the system be operating with the safety devices by-passed or plugged.
Air present in pump A
The indoor or outdoor unit is reporting an abnormal
condition
The 3-way valve may have foreign objects in it, or hot
water may flow to the heating side due to abnormal
malfunctions.
All reserves of hot water from thermal store tank have been
used.
33
Ű(UURU&RGHV6HUYLFHDQG0DLQWHQDQFH7
&RGHError $FWLRQL3 Circulation water temperature overheat protection
L4 Thermal store tank water temperature overheat protection
L5 Indoor unit temperature thermistor (THW1, THW2, THW3, THW4, THW5A,
THW5B) failure
L6 Circulation water freeze protection
L8 Heating operation error
LP DHW supply temperature overheat protection
LU Water ciculation pump failure
L9
LF
J0 Communication failure between FTC and wireless receiver
P1 Thermistor (Room temp.) (TH1) failure
J1 - J8 Communication failure between wireless receiver and wireless remote controller
E0 - E5 Communication failure between main controller and FTC
E6 - EF Communication failure between FTC and outdoor unit
U*, F* Outdoor unit failure Refer to outdoor unit service manual.
1RWH7RFDQFHOHUURUFRGHVSOHDVHSUHVV)EXWWRQRUVZLWFKV\VWHP2))3UHVVEXWWRQ(RQ0DLQ&RQWUROOHrIRUVHFVFlow sensor failure (flow sensors1,A,B)
Low primary circuit flow rate detected by flow sensor (flow sensors1,B)
Check resistance across the thermistor (THW1,THW3, THW5A).
Check resistance across the thermistor.
See Action for L3.
Re-attach any thermistors that have become dislodged.
See Action for L3.
Check detection value of thermistor is the same as the actual temperature
Check resistance across the thermistor (Cylinder unit and outdoor unit)
Check cloggings of the pump with foreign materials
Check water circulation pump cable for damage or loose connections.
&DXWLRQ7KHSXPSYDOYHVPD\EHKRWSOHDVHWDNHFDUH&DXWLRQ7KHSXPSYDOYHVPD\EHKRWSOHDVHWDNHFDUHCheck connection cable for damage or loose connections.
Check resistance across the thermistor.
Check the room sensor settings.(page 26)
Check connection cable for damage or loose connections.
Flow rate may be reduced check for;
:DWHUOHDNDJH6WUDLQHUEORFNDJH&ORJJLQJRISLSLQJ:DWHUFLUFXODWLRQSXPSIXQFWLRQ(UURUFRGHPD\GLVSOD\GXULQJILOOLQJRIprimary circuit, complete filling and reset error code.)
Check wireless remote controller’s battery is not flat.
Check the pairing between wireless receiver to wireless remote controller.
Test the wireless communication. (See the manual of wireless system)
Check flow sensor cable for damage or loose connections.
See Action for L3. If the flow sensor itself does not work,replace it.
Discharge the air for primary circuit.
Turn on the pump A and pump 1 using Manual operation to flush debris
on the flow sensor.
Check that the outdoor unit has not been turned off.
Check connection cables for damage and miswiring or loose connections.
Press the reset button and recover the system after lowering thetempera-
ture if the thermostat of outdoor unit operates.
Refer to outdoor unit service manual.
It is essential that the cylinder unit is serviced at least once a year by a qualified individual. Any spare parts required should be purchased from Mitsubishi Electric.
Never bypass safety devices or operate the unit without them being fully operational. For more details, refer to service handbook.
In addition to annual servicing it is necessary to replace or inspect some parts after a certain period of system operation. Please see tables below for detailed instructions.
Replacement and inspection of parts should always be done by a competent person with relevant training and qualifications.
3DUWVZKLFKUHTXLUHUHJXODUUHSODFHPHQW3DUWVZKLFKUHTXLUHUHJXODULQVSHFWLRQ3DUWV5HSODFHHYHU\3RVVLEOHIDLOXUHVPressure relief valve (PRV)
Air vent (Auto)
Manometer
6 years Water leakage 3DUWV&KHFNHYHU\3RVVLEOHIDLOXUHVWater circulation pump1 50,000 hrs (7 years) Water circulation pump
failure
3DUWVZKLFKPXVW127EHUHXVHGZKHQVHUYLFLQJ* O-ring
* Gasket
Ű$QQXDO0DLQWHQDQFH1RWH:LWKLQWKHILUVWFRXSOHRIPRQWKVRILQVWDOODWLRQUHPRYHDQGFOHDQWKHF\OLQGHUXQLW¶VVWUDLQHUSOXVDQ\VWUDLQHUDQGPDJQHWLFILOWHUWKDWPD\EHILWWHGH[WHUQDOWRWKHF\OLQGHUXQLW7KLVLVHVSHFLDOO\LPSRUWDQWZKHQLQVWDOOLQJRQDQH[LVWLQJV\VWHP
34
Service and Maintenance
7
ŰEngineers Forms
Commissioning / Field settings record sheet
Hot water (DHW)
Heating
Compensation
curve
Adjust
Holiday
Initial settings
Service menu
*1 The settings related to Zone2 can be switched only when 2 zone temperature control is enabled (when DIP SW2-6 and SW 2-7 are ON).
*2 Valid only when operating in Room temp. control mode.
*3 On: the function is active; Off: the function is inactive.
*4 If asterisk (**) is chosen freeze stat function is deactived. (i.e. primary water freeze risk)
*5 The settings related to Zone2 can be switched only when 2-Zone valve ON/OFF control is active.
*6 In case of “Compensation curve mode” or “Flow temp. mode” selected, even if flow rate setting is “Auto” mode,flow rate will be fixed at “7.0 L/min”.
Hi flow temp.
set point
Field
setting Notes
Should settings be changed from default, please enter and record new setting in ‘Field Setting’ column. This will ease resetting in the future should the system use change
or the circuit board need to be replaced.
Main
Option
Setting
Main controller screen
Room temp
20°C
20°C
45°C
0°C
—
—
On
On
—
55°C
15°C
60 mins
30 mins
Normal
í&50°C
35°C
25°C
—
—
Non active
Active
15°C
15°C
35°C
°C
Off
Off
hh:mm
TH1
TH1
Zone1
0°C
0°C
0°C
0°C
0°C
0°C
On
10 mins
On
Default
setting
Parameters
Zone1 heating room temp.
Zone1 heating flow temp.
Zone1 heating compensation curve
Zone2 heating room temp. *5
Holiday mode
Forced DHW operation
DHW
Heating
Energy monitor
DHW supply max. temp.
DHW supply temp. drop
DHW max. operation time
DHW mode restriction
DHW storage volume
Zone1 operation mode
Zone1 outdoor ambient temp.
Zone1 flow temp.
Zone1 flow temp.
Zone1 flow temp.
Zone1 outdoor ambient temp.
Zone1 outdoor ambient temp.
DHW
Zone1 heating flow temp.
Heating
Zone1 heating room temp.
Zone2 heating room temp. *5
°C/°F
Summer time
Temp. display
Time display
Room sensor settings for Zone1
Room sensor settings for Zone2 *1
Room RC zone select *1
Thermistor
adjustment
Auxiliary settings
THW1
THW2
THW3
THW4
THW5A
THW5B
Economy settings
for pump.
10°C - 30°C
10°C - 30°C
25°C - 60°C
í&&Active/Non active/Set time
On/Off
On/Off/Timer
On/Off/Timer
Consumed electric energy/Produced energy
40°C - 70°C
15°C - 30°C
30 - 120 mins
30 - 120 mins
Normal/Energy save
Room temp/Flow temp/Compensation curve
í&- 33°C
25°C – 60°C
í&&25°C - 60°C
í&&25°C - 60°C
Active/Non active
Active/Non active
10°C - 30°C
10°C - 30°C
25°C - 60°C
°C/°F
On/Off
Room/Tank/Room&tank /Off
hh:mm/hh:mm AM/AM hh:mm
7+0DLQ5&5RRP5&³Time/Zone”
7+0DLQ5&5RRP5&³Time/Zone”
Zone1/Zone2
í&&í&&í&&í&&í&&í&&On/Off *3
Delay (3 - 60 mins)
Space heating: On (used)/Off (not used)
Electric heater delay timer (5PLQV30 mins
Pump speed Pump speed(1 - 5)
Standard/Heater
Operation
settings
Min.temp.(25 - 45°C)
Max.temp.(35 - 60°C)
Mode(Normal /Fast)
Interval(10 - 60min)
On/Off *3
Mode(Auto/Manual) *6
/RZHUOLPLWíí&)ORZUDWH/PLQ8SSHUOLPLW&)
Outdoor ambient temp. (3 - 20°C) / **
Energy
monitor
settings
0 - 30kW
0 - 200W or ***(factory fitted pump)
0.1/1/10/100/1000 pulse/kWh
0.1/1/10/100/1000 pulse/kWh
í4
Standard
40°C
50°C
Normal
10 mins
On
Auto
-5°C
7L/min
&5°C
2kW
***
1 pulse/kWh
1 pulse/kWh
Lo flow temp.
set point
Electric heater
(Heating)
Flow temp.range
*2
Room temp.control
*2
Heat pump thermo
diff.adjust *2
Flow rate settings
Booster heater 1
capacity
Pump 1
Heat source setting
Heating operation
Freeze stat function *4
Electric heater
capacity
Delivered energy adjustment
Water pump input
Electric energy meter
Heat meter
35
Issued date: 17 Nov. 2015 Daizo YAJIMA
General Manager, Quality Assurance Dept.
Revised date: 20 Apr. 2016
JAPAN
EU DECLARATION OF CONFORMITY
MITSUBISHI ELECTRIC CORPORATION,
TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
hereby declares under its sole responsibility that the Air to Water Heat Pump described
below for use in residential, commercial and light-industrial environments:
MITSUBISHI ELECTRIC, EHPT20Q-VM2EA, QUHZ-W40VA
Note: Its serial number is on the nameplate of the product.
Directives
2014/35/EU: Low Voltage
2006/42/EC: Machinery
2014/30/EU: Electromagnetic Compatibility
2011/65/EU: RoHS
2009/125/EC: Energy - related Products
Printed in Japan
T968Z002H02
Installers: Please be sure to put your full contact address/telephone number on
this manual before handing it to the customer.
HEAD OFFICE :
TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
IMPORTER :
・MITSUBISHI ELECTRIC AIR CONDITIONNING SYSTEMS EUROPE LTD.
NETTLEHILL ROAD, HOUSTOUN INDUSTRIAL ESTATE, LIVINGSTON, EH54 5EQ,
SCOTLAND, U.K.
・MITSUBISHI ELECTRIC EUROPE B.V.
UK BRANCH :TRAVELLERS LANE, HATFIELD, HERTS., AL10 8XB, ENGLAND, U.K.
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