Ecodan EHPT15X-UKHLDW1S User manual

SERVICE MANUAL
Renewable Heating Technology
IMPORTANT: PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS
BEFORE PERFORMING ANY MAINTENANCE.
PLEASE LEAVE THIS MANUAL WITH THE CUSTOMER FOR FUTURE REFERNCE.
EHPT15X-UKHLDW1S
EHPT17X-UKHLDW1S
EHPT15X-UKHDW1S
EHPT17X-UKHDW1S
EHPT21X-UKHDW1S
EHPT21X-UKHDW1L
EHPT25X-UKHDW1L
EHPT30X-UKHDW1L
January 2022
Doc. No. 607483
PRE-PLUMBED UNVENTED MAINS PRESSURE
WATER HEATER
WITH FTC6 CONTROL SYSTEM.
FOR USE WITH ECODAN PUZ-(H)WM
AIR SOURCE HEAT PUMP RANGE.

2
CONTENTS
REFERENCE MANUAL........................................................................................................................3
SAFETY PRECAUTION........................................................................................................................4
SPECIFICATIONS ................................................................................................................................6
PART NAMES AND FUNCTIONS .......................................................................................................8
OUTLINES AND DIMENSIONS...........................................................................................................9
WIRING DIAGRAM..............................................................................................................................13
FIELD WIRING.....................................................................................................................................15
WATER SYSTEM DIAGRAM ..............................................................................................................16
CONTROLS..........................................................................................................................................19
TROUBLESHOOTING.........................................................................................................................40
DISASSEMBLY PROCEDURE............................................................................................................55
SUPPLEMENTARY INFORMATION ..................................................................................................57
SERVICE AND MAINTENANCE.........................................................................................................58
ENVIRONMENTAL INFORMATION...................................................................................................68
TECHNICAL SUPPORT......................................................................................................................68

3
REFERENCE MANUAL
OUTDOOR UNIT'S SERVICE MANUAL
Service Ref. Service Manual No.
Packaged model
PUZ-WM50VHA(-BS).UK
PUZ-WM60VAA(-BS).UK
PUZ-WM85VAA(-BS).UK
PUZ-WM85YAA(-BS).UK
PUZ-WM112VAA(-BS).UK
PUZ-WM112YAA(-BS).UK
OCH727
OCB727
PUZ-HWM140VHA(-BS)
PUZ-HWM140YHA(-BS)
OCH748
OCB748

4
SAFETY PRECAUTION
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.
• Be sure to perform periodical maintenance.
• Be sure to follow your local regulations.
• Be sure to follow the instructions provided in this manual.
WARNING
Mechanical
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
,
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.
Electrical
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.
Discharge the condenser before the work involving the electric parts.
General
Keep children and pets away from both the cylinder unit and outdoor units.
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.
.
Do not place any heavy items on top of the cylinder unit.
other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refriger-
ant line, and may result in an explosion and other hazards.
could lead to a serious impediment to securing product safety.
of all the heat emitters in Zone2 circuit.
result.
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
Pipe-work shall be protected from physical damage.
The installation of pipe-work shall be kept to a minimum.
Compliance with national gas regulations shall be observed.
Keep any required ventilation openings clear of obstruction.
Do not use low temperature solder alloy in the case of brazing the refrigerant pipes.
MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT
WARNING This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
Read the OPERATION MANUAL carefully before operation.
Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.
Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like.

5
Electronic weighing scale
Unit
CAUTION
Use clean water that meets local quality standards on the primary circuit.
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 DHW 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 or frostbite.
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 DHW 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.
.
Preventative measures should be taken against water hammer, such as installing a Water Hammer Arrestor on the primary water circuit, as directed by the man-
ufacturer.
As for the handling of refrigerant, refer to the outdoor unit installation manual.
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them.
[2] Additional refrigerant charge
When charging directly from refrigerant cylinder
(1) Check that cylinder for R410A or R32 on the market is syphon type.
(2) Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
[3] Service tools
Use the service tools below as exclusive tools for R410A or R32 refrigerant.
No. Tool name Specifications
1Gauge manifold
· R410A or R32
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3 MPa·G or over.
2Charge hose · R410A or R32
· Use pressure performance of 5.09 MPa·G or over.
3Electronic weighing scale —
4Gas leak detector · Use the detector for R134a, R407C, R410A or R32
5Adaptor for reverse flow check · Attach on vacuum pump.
6Refrigerant charge base —
7Refrigerant cylinder · R410A or R32 · Top of cylinder (Pink)
· Cylinder with syphon
8Refrigerant recovery equipment —

6
150 170 210 (Small) 210 (Large) 250 300
Primary flow rate (H) WM 50/60/85/112/140 Pump Connec�on size Hea�ng/DHW (mm)
DHW Expansion vessel (litres) 12 18 18 18 24 24
Charge pressure (MPa (bar))
Control thermistor (oC)
Pressue Relief Valve (MPa (bar)) Control thermistor (oC) Over-temperature cut-out (oC)
Temp/Pressure Relief Valve (oC/MPa (bar))
Expansion valve (MPa (bar))
Width
Depth
Height
Vessel
Type Nominal thickness (mm)
Standing heat loss (kWh/24h)
Ozone Deple�on Poten�al
Global Warming Poten�al
Electrical supply Phase Fuse ra�ng - MCB Size (A)
Electrical supply Phase Ra�ng (kW at 240V) Max current (A)
Fuse ra�ng - MCB Size (A)
PAR-WT50-E controller & PAR-WR51-E receiver
zero
3.1
220 - 240 V ~ , 50Hz
single
16
220 - 240 V ~ , 50Hz
single
3
13
16
DHW and 1 hea�ng zone *
80 +/- 5
90 / 1.0 (10.0)
0.8 (8.0)
Duplex stainless steel
Expanded polyurethane (PU)
60
Mechanical zones
Op�onal wireles room thermostat and wireless receiver
STANDARD
0.35 (3.5)
22/22 28/22
Heat Pump - Grundfos UPM3L 25-75 130AZA Hea�ng - Grundfos UPM3 AUTO 25-70 130
DHW - Grundfos UPSO 15-60 CIL2
14/17/24/32/40 l/min
80
0.3 (3.0) Contained within outdoor unit
75
Dimensions (mm)
Weight empty/full (kg)
Materials
Insula�on
Electrical data
Control Board
(op�onally powered
by outdoor unit)
Immersion heater
UNIT
Nominal hot water capacity (litres)
Water
Safety devices
Primary circuit
DHW circuit
748748 748
756 756 756 730 730 730
755755 755
1131 1257 1509 17611509 2075
1.53 1.80 2.09
55/205 58/228 64/274 74/32468/278 82/382
* Optional 2-zone accessory pack available
1.15 1.23 1.53
SPECIFICATIONS

7
150 170
Primary flow rate (H)WM50/60/85
Pump Connec�on size Hea�ng/DHW (mm)
DHW Expansion vessel (litres) 12 18
Charge pressure (MPa (bar))
Control thermistor (°C)
Pressue Relief Valve (MPa (bar)) Control thermistor (°C)
Over-temperature cut-out (°C)
Temp/Pressure Relief Valve (°C/MPa (bar)) Expansion valve (MPa (bar))
Width
Depth
Height
Vessel
Type Nominal thickness (mm)
Standing heat loss (kWh/24h)
Ozone Deple�on Poten�al
Global Warming Poten�al
Electrical supply
Phase Fuse ra�ng - MCB Size (A)
Electrical supply
Phase Ra�ng (kW at 240V) Max current (A)
Fuse ra�ng - MCB Size (A)
PAR-WT50-E controller & PAR-WR51-E receiver
zero
3.1
220 - 240 V ~ , 50Hz
single
16
220 - 240 V ~ , 50Hz
single
3
13 16
DHW and 1 hea�ng zone*
80 +/- 5
90 / 1.0 (10.0)
0.8 (8.0)
Duplex stainless steel
Expanded polyurethane (PU)
50
Mechanical zones
Op�onal wireles room thermostat and wireless receiver
SLIMLINE
0.35 (3.5)
22/22
14/17/24 l/min
80
0.3 (3.0) Contained within outdoor unit
75
Dimensions (mm)
Weight empty/full (kg)
Materials
Insula�on
Electrical data
Control Board (op�onally powered by outdoor unit
Immersion heater
UNIT
Nominal hot water capacity (litres)
Water
Safety devices
Primary circuit
DHW circuit
676 676 654 654
1516 1690
59/209 63/233
1.40 1.59
*Optional 2-zone accessory pack available
Heat Pump - Grundfos UPM3L 25-75 130AZA Hea�ng - Grundfos UPM3 AUTO 25-70 130 DHW - Grundfos UPSO 15-60 CIL2

8
Flow sensor
(behind controller)
Heat Pump circulating
pump
3 Way motorised
diverter valve
Low loss header
Automatic Air Vent
FTC6 Controller
Immersion heater
housing
Primary circuit
pressure gauge
Primary circuit
drain off point
Heating zone 1
circulating pump
THW5A thermistor boss
Temperature/Pressure
Relief Valve
Expansion Valve
Tundish
DHW circulating
pump
Scale Trap
DHW Drain off
point
Plate to Plate heat
exchanger
Magnetic filter
Expansion vessel
tapping
Hot Water Outlet
PART NAMES AND FUNCTIONS

9
755
748
579
C & E
BAD
F
G
J
I
H
C E
K
Dimensions - 28mm Standard Models
CAPACITY 210 250 300
A1509 1761 2075
B1050 1175 1385
C1370 1370 1370
D880 1136 1450
E1370 1370 1370
F270 270 270
G350 350 350
J925 1005 1193
KInstaller to locate and mount
OUTLINES AND DIMENSIONS
KEY
A OVERALL HEIGHT
B SECONDARY RETURN TAPPING
C HEAT PUMP FLOW CONNECTION (28mm O/D COPPER)
D TUNDISH OUTLET CONNECTION (22mm COMPRESSION)
E HEAT PUMP RETURN CONNECTION (28mm O/D COPPER)
F HEATING ZONE 1 CIRCUIT FLOW CONNECTION (22mm O/D COPPER)
G HEATING ZONE 1 CIRCUIT RETURN CONNECTION (22mm O/D COPPER)
H COLD WATER INLET CONNECTION (22mm COMPRESSION)
I HOT WATER OUTLET CONNECTION (22mm COMPRESSION / 3/4” BSP M)
J THW5A SENSOR POCKET
K WI-FI ADAPTOR (INCLUDED, INSTALLER TO LOCATE AND MOUNT)

10
756
730
579
C & E
BAD
J
C E
I
H
K
F
G
Dimensions - 22mm Standard Models
CAPACITY 150 170 210
A1131 1257 1509
BNot tted Not tted 1050
C1122 1122 1122
D505 630 880
E1122 1122 1122
F194 194 194
G350 350 350
J675 815 925
KInstaller to locate and mount
KEY
A OVERALL HEIGHT
B SECONDARY RETURN TAPPING (NOT FITTED TO EHPT15X-UKHDW1S/ EHPT17X-UKHDW1S)
C HEAT PUMP FLOW CONNECTION (22mm O/D COPPER)
D TUNDISH OUTLET CONNECTION (22mm COMPRESSION)
E HEAT PUMP RETURN CONNECTION (22mm O/D COPPER)
F HEATING ZONE 1 CIRCUIT FLOW CONNECTION (22mm O/D COPPER)
G HEATING ZONE 1 CIRCUIT RETURN CONNECTION (22mm O/D COPPER)
H COLD WATER INLET CONNECTION (22mm COMPRESSION)
I HOT WATER OUTLET CONNECTION (22mm COMPRESSION / 3/4” BSP M)
J THW5A SENSOR POCKET
K WI-FI ADAPTOR (INCLUDED, INSTALLER TO LOCATE AND MOUNT)

11
676
654
491
B & D
A
J
C
G
H
B D
K
E
F
Dimensions - 22mm Slimline Models
CAPACITY 150 170
A1516 1690
B1127 1127
C909 1083
D1127 1127
E350 350
F194 194
J943 1117
KInstaller to locate and mount
KEY
A OVERALL HEIGHT
B HEAT PUMP FLOW CONNECTION (22mm O/D COPPER)
C TUNDISH OUTLET CONNECTION (22mm COMPRESSION)
D HEAT PUMP RETURN CONNECTION (22mm O/D COPPER)
E HEATING ZONE 1 CIRCUIT FLOW CONNECTION (22mm O/D COPPER)
F HEATING ZONE 1 CIRCUIT RETURN CONNECTION (22mm O/D COPPER)
G COLD WATER INLET CONNECTION (22mm COMPRESSION)
H HOT WATER OUTLET CONNECTION (22mm COMPRESSION / 3/4” BSP M)
J THW5A SENSOR POCKET
K WI-FI ADAPTOR (INCLUDED, INSTALLER TO LOCATE AND MOUNT)

12
Service Access Diagram
The cylinder must be located indoors and in a frost free environment, for example in a utility room, to
minimise heat loss from the stored water. Please allow su󰀩cient clearance at the front to close a door
where tted.
Su󰀩cient space MUST be left for the provision of discharge pipework as detailed in National and Local
Building Regulations.
Wall
50mm
150mm
150mm
C
A
B
Clearances - Side, Front & Rear
Dimensions of A, B & C in above diagram
Ceiling or similar
Floor
D
120mm
Dimension of D in above diagram
Model Dimension D
1636mm
1810mm
1251mm
1377mm
1629mm
1629mm
1881mm
2195mm
EHPT21X-UKHDW1L
EHPT25X-UKHDW1L
EHPT30X-UKHDW1L
EHPT15X-UKHDW1S
EHPT17X-UKHDW1S
EHPT21X-UKHDW1S
EHPT15X-UKHLDW1S
EHPT17X-UKHLDW1S
Dimension
Model A B C
976mm 972mm 268mm
1030mm 1066mm 260mm
1048mm 1066mm 260mm
EHPT21X-UKHDW1L
EHPT25X-UKHDW1L
EHPT30X-UKHDW1L
EHPT15X-UKHDW1S
EHPT17X-UKHDW1S
EHPT21X-UKHDW1S
EHPT15X-UKHLDW1S
EHPT17X-UKHLDW1S
Clearances - Above

13
FTC WIRING DIAGRAM <PAC-IF07*B-E> Symbol Name
TB1 Terminal block <Power supply, Outdoor unit> ECB2
Earth leakage circuit breaker for immersion heater (Except PAC-IF071B-E)
MP1
Water circulation pump 1(Space heating & DHW)
MP2 Water circulation pump 2
(Space heating for Zone1)(Local supply)
MP3 Water circulation pump 3
(Space heating for Zone2)(Local supply)
MP4
Water circulation pump 4 (DHW)(Local supply)
3WV (2WV1)
3-way valve (2-way valve 1)(Local supply)
2WV2a 2-way valve (For Zone 1)(Local supply) 2WV2b 2-way valve (For Zone 2)(Local supply) MXV Mixing valve (Local supply) IHT
heater(Except PAC-IF071B-E)
IH Immersion heater(Except PAC-IF071B-E) IHC Contactor for immersion heater
(Except PAC-IF071B-E)
TH1 Thermistor (Room temp.)(Option) TH2 Thermistor (Ref. liquid temp.)
(Included in PAC-IF071B-E)
THW1 Thermistor (Flow water temp.) THW2 Thermistor (Return water temp.) THW5A Thermistor (DHW tank upper water temp.)
(Included in PAC-IF073B-E)
THW5B Thermistor (DHW tank lower water temp.)
(Included in PAC-IF073B-E)
(Option for PAC-IF071/072B-E)
THW6
THW7 Thermistor (Zone1 return temp.)(Option) THW8 THW9 Thermistor (Zone2 return temp.)(Option) THW10 Thermistor (Mixing tank temp.)(Option) THWB1 IN1 Room thermostat 1 (Local supply) IN2 Flow switch 1 (Local supply) IN3 Flow switch 2 (Local supply) IN4 Demand control (Local supply) IN5 Outdoor thermostat (Local supply) IN6 Room thermostat 2 (Local supply) IN7 Flow switch 3 (Local supply) IN8 Electric energy meter 1 (Local supply) IN9 Electric energy meter 2 (Local supply) IN10 Heat meter (Local supply)
IN11 Smart grid ready input (Local supply) IN12
INA1 Flow sensor (Option) FLOW TEMP. CONTROLLER (FTC)
TBO.1-5
Terminal block <Outputs>
TBI.1-6 Terminal block <Signal Inputs, Thermistor> F1 Fuse (IEC T10AL250V) F2 Fuse (IEC T6.3AL250V) SW1-6 DIP switch *See Table 3 X1-16 Relay LED1 Power supply (FTC) LED2 Power supply (Main remote controller) LED3 Communication (FTC-Outdoor unit) LED4 Reading or writing data to SD card
CNPWM
Pump speed control signal for MP1
CN108 SD card connector
1. Symbols used in wiring diagram are, : connector, : terminal block. Function with asterisk (*) may not be available depending on model types.
2. Indoor unit and outdoor unit connecting wires have polarities, make sure to match terminal numbers (S1, S2, S3) for correct wirings. 3. Since the outdoor unit side electric wiring may change, be sure to check the outdoor unit electric wiring diagram for service. 4. When connecting a booster heater, the wiring method is different according to the type of built-in thermostat.
Please refer to the installation manual for details.
Table 4 Error Codes
Code Error
L3 Circulation water temperature overheat protection L4 DHW tank water temperature overheat protection L5 Indoor unit temperature thermistor (THW1, THW2, THW5B,
THW6, THW7, THW8, THW9) failure
L6 Circulation water freeze protection L8 Heating operation error L9
LA Pressure sensor failure
LB High pressure protection
LC Boiler circulation water temperature overheat protection LD
Boiler temperature thermistor (THWB1) failure
LE Boiler operation error
LF Flow sensor failure
LH Boiler circulation water freeze protection
LJ DHW operation error (type of external plate HEX)
LL Setting errors of DIP switches on FTC control board
LP
P1 Thermistor (Room temp.) (TH1) failure P2 Thermistor (Ref. liquid temp.) (TH2) failure P6 Anti-freeze protection of plate heat exchanger
J0 Communication failure between FTC and wireless receiver
J1 - J8
Communication failure between wireless receiver and wireless remote controller
J9
Communication failure between FTC (Master) and FTC (Slave)
E0 - E5 Communication failure between main remote controller and
FTC
E6 - EF
Communication failure between FTC and outdoor unit
E9 Outdoor unit receives no signal from indoor unit.
EE Outdoor unit incorrect connection
U*, F*,A*
Outdoor unit failure
Table 1 Signal Inputs
Name
Terminal block
Connector
Item OFF (Open) ON (Short)
IN1 TBI.1 7-8 — Room thermostat
1 input *1
Refer to SW2-1 in <Table 3 DIP Switch Functions>.
IN2 TBI.1 5-6 — Flow switch 1
input
Refer to SW2-2 in <Table 3 DIP Switch Functions>.
IN3 TBI.1 3-4 — Flow switch 2
input (Zone1)
Refer to SW3-2 in <Table 3 DIP Switch Functions>.
IN4 TBI.1 1-2 — Demand control
input Normal Heat source OFF/
Boiler operation *3
IN5 TBI.2 7-8 — Outdoor thermo-
stat input *2
Standard opera- tion
Heater operation/ Boiler operation *3
IN6 TBI.2 5-6 — Room thermostat
2 input *1
Refer to SW3-1 in <Table 3 DIP Switch Functions>.
IN7 TBI.2 3-4 — Flow switch 3
input (Zone2)
Refer to SW3-2 in <Table 3 DIP Switch Functions>.
IN8 TBI.3 7-8 — Electric energy
meter 1
Refer to installation manual.
IN9 TBI.3 5-6 — Electric energy
meter 2
IN10
TBI.2 1-2 — Heat meter
IN11
TBI.3 3-4 — Smart grid ready
input
IN12
TBI.3 1-2 —
INA1
TBI.4 1-3 CN1A Flow sensor
*1. Set the ON/OFF cycle time of the room thermostat for 10 minutes or more;
otherwise the compressor may be damaged.
*2. If using outdoor thermostat for controlling operation of heaters, the lifetime of the
heaters and related parts may be reduced.
*3. To turn on the boiler operation, use the main remote controller to select “Boiler” in
“External input setting” screen in the service menu.
Table 2 Outputs
Name
Terminal block
Connector
Item OFF ON
OUT1
TBO.1 1-2 CNP1 Water circulation pump 1 output
(Space heating/cooling & DHW) OFF ON
OUT2
TBO.1 3-4 — Water circulation pump 2 output
(Space heating/cooling for Zone1) OFF ON
OUT3
TBO.1 5-6 —
Water circulation pump 3 output (Space heating/cooling for Zone2) *1 OFF ON 2-way valve 2b output *2
OUT4
TBO.2 4-6 CNV1 3-way valve (2-way valve) output Heating DHW
OUT5
TBO.2 1-2 — Mixing valve output *1 Stop Close
TBO.2 2-3 Open
OUT6
TBO.5 5-6 — Booster heater 1 output OFF ON
OUT7
TBO.5 7-8 — Booster heater 2 output OFF ON
OUT8
TBO.4 7-8 — Cooling signal output OFF ON
OUT9
TBO.4 5-6 CNIH Immersion heater output OFF ON
OUT10
TBO.3 1-2 — Boiler output OFF ON
OUT11
TBO.3 5-6 — Error output Normal Error
OUT12
TBO.3 7-8 — Defrost output Normal Defrost
OUT13
TBO.4 3-4 — 2-way valve 2a output *2 OFF ON
OUT14
— CNP4 Water circulation pump 4 output
(DHW) OFF ON
OUT15
TBO.4 1-2 — Comp. ON signal OFF ON
OUT16
TBO.3 3-4 — Thermo ON signal OFF ON
OUTA1
TBI.4 7-8 — Analog output 0V-10V
BC
TBO.5 3-4 — Booster heater protection output
OFF(BHT Open) ON(BHT Short)
BHT
TBO.5 1-2
CNBHT
Thermostat for booster heater
Thermostat normal: Short High temp. open
Do not connect to the terminals that are indicated as “—” in the “T *1. For 2-zone temperature control. *2. For 2-zone valve ON/OFF control.
CN108
CN01 (BK)
1 3
CN3C (BU)
1 3
CNPWM
(WH)
1
5
CNRF (WH)
Wireless receiver
(Option)
1
5
CN105 (RD)
WiFi adapter
(Option)
1
5
CNIT (BU)
1
2
CN20
(RD)
1 3
CN21
(YE)
1
4
CNW12
(RD)
CNW5
(BU)
1
4
CN1A
(WH)
TBI.1
LED1
LED2
LED3 LED4
TAB1
1 8
1 8
1 8 1 8 1 6
SW1 SW2 SW3 SW4
SW5
F1
IECT10AL250V
F2
IECT6.3AL250V
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 3 1 3
CNBHT
(BK)
CNIH
(OG)
CNV1
(WH)
CNP4
(RD)
CNP1
(WH)
TBO.1 TBO.2 TBO.3 TBO.4
1 2 3 4 5 6 7 8
TBO.5
1 3 5
1 3
CNP4
(RD)
F1 F2
CN01
(BK)
TBO.1
X1 X2 X3
X14
1 3
3
CNPWM
(WH)
CNP1
(WH)1
3
M
1~
2WV2b
MP3
MP4
1 2 3 4 5 6
TBO.2
1 3 5
CNV1
(WH)
3WV
1 2 3 4 5 6 7 8
TBO.3
X4
X10 X16 X11 X12
TBO.4
1 2 3 4 5 6 7 8
TBO.5
X15 X13
X9 X8
Signal output
(Boiler)
Signal output
(thermo on)
Signal output
(Error)
Signal output (Defrost) Signal output
(Comp. on)
CNIH
(OG)2WV2a
1 3
X6 X7
N
(3)
L
(1)
42
BU
RD
31 5 A1
42 6 A2
IHT
IH
BA
BU
RD
1 3
2
CNIH
(OG)
OG
OG
Power supply
to Immersion heater
(Except PAC-IF071B-E)
~/N230V 50Hz
ECB2
IHC
1
5
3
1
5 3
1 3 1 3
FTC board
X5B
X5A
MXV
Close
N
Open
MP2 MP1
M
1~
M
1~
TBI.2TBI.3TBI.4TBI.5TBI.6
12345678 12345678 12345678 12345678 12345678 12345678
1 2 3 4 5 6
1
4
t° t° t°
12345678
IN4IN3IN2IN1
12345678
IN10IN7IN6IN5
12345678
IN12IN9IN8 IN11
12345678
OUTA1
Flow
Sensor
12345678
t°
THW6 THW7 THW8 THW9
t° t°
12345678
THWB1 THW 10
Main remote
controller
FTC
(Slave)
TBI.1 TBI.2 TBI.3 TBI.4 TBI.5TBI.6
CN20
(RD)
t°
CN21
(YE)
1 3 1 2
CNW12
(RD)
1 4
CNW5
(BU)
t°
TAB1
THTH1TH2 *
THW5B *
- + + -
V
- + - +
14
t° t°t°
THW2THW1
1 5
SW6
M
1~
M
1~
M
1~
M
1~
M
1~
NL
S3S2S1
NL
S3S2S1
To outdoor
unit
TB1
OG OG
YE
YE
GNYE
To outdoor
unit
Power supply
~/N 230V 50Hz
TB1
OG
BU
RD
BU
RD
YE
GNYE
1 3
1 3
OG
BN
OG
BN
Indoor unit powered
by independent source
Indoor unit powered
via outdoor unit
CIRCUIT
BREAKER
1 3 5
CN3C
(BU)
CN3C
(BU)
CN01
(BK)
OG
YE
1 3 5
CN01
(BK)
2WV1
M
1~
4 5 6
TBO.2
1 2 3 4 5 6 7 8
Signal output for booster
heater protection
Signal output
(booster heater 1)
Signal output
(booster heater 2)
CN1A
(WH)
1 4
<How to use TBO.1 to 5>
1 4
Pressre
Sensor *
CN401
(WH)
1
4
CN401
(WH)
t°
THW5A *
1
BHT
CNBHT
(BK)
3
Tool
Tool
Conductor Conductor
Outline view Top view
Connect them using either way as shown below.
*1. External output (OUT11) will be available. For safety reasons, this function is not available for certain errors. (In that case, system operation must be stopped and only the
water circulation pump keeps running.)
*2. This switch functions only when the FTC unit is connected with a PUHZ-FRP outdoor unit. When another type of outdoor unit is connected, the heating mode function is
active regardless of the fact that this switch is ON or OFF.
*3. Space heating and DHW can be operated only in indoor unit, like an electric heater. *4. If emergency mode is no longer required, return the switch to OFF position. *5. Active only when SW3-6 is set to OFF.
*6. Active only when SW4-1 is set to ON.
Table 3 DIP switch functions
DIP switch Function OFF ON Default settings:
Indoor unit model
SW1
SW1-1
Boiler WITHOUT
Boiler WITH Boiler OFF
SW1-2
Heat pump maxi- mum outlet water temperature
55ºC 60ºC ON
SW1-3
DHW tank WITHOUT
DHW tank
WITH DHW tank
OFF : PAC-IF071B-E ON : Except : PAC-IF071B-E
SW1-4
Immersion heater WITHOUT Im-
mersion heater
WITH Immer- sion heater
OFF : PAC-IF071B-E ON : Except : PAC-IF071B-E
SW1-5
Booster heater WITHOUT
Booster heater
WITH Booster heater
OFF
SW1-6
Booster heater function
For heating only
For heating and DHW
OFF
SW1-7
Outdoor unit type Split type Packaged type
OFF : PAC-IF071B-E ON : Except : PAC-IF071B-E
SW1-8
Wireless remote controller
WITHOUT Wireless re- mote controller
WITH Wireless remote control- ler
OFF
SW2
SW2-1
Room thermostat 1 input (IN1) logic change
Zone1 opera- tion stop at ther- mostat short
Zone1 opera-
tion stop at ther- mostat open
OFF
SW2-2
Flow switch 1 input (IN2) logic change
Failure detec- tion at short
Failure detec- tion at open OFF
SW2-3
Booster heater capacity restriction Inactive Active OFF
SW2-4
Cooling mode func- tion Inactive Active OFF
SW2-5
Automatic switch to backup heat source operation (When outdoor unit stops by error)
Inactive Active *1 OFF
SW2-6
Mixing tank WITHOUT Mix-
ing tank
WITH Mixing tank OFF
SW2-7
2-zone temperature control Inactive Active *5 OFF
SW2-8
Flow sensor WITHOUT
Flow sensor
WITH Flow sensor OFF
DIP switch Function OFF ON Default settings:
Indoor unit model
SW3
SW3-1
Room thermostat 2 input (IN6) logic change
Zone2 opera- tion stop at ther- mostat short
Zone2 opera- tion stop at ther- mostat open
OFF
SW3-2
Flow switch 2 and 3 input logic change
Failure detec- tion at short
Failure detec- tion at open OFF
SW3-3
— — — OFF
SW3-4
Electric energy meter
WITHOUT Electric energy meter
WITH Electric energy meter OFF
SW3-5
Heating mode function *2
Inactive Active ON
SW3-6
2-zone valve ON/ OFF control Inactive Active OFF
SW3-7
Heat exchanger for DHW
Coil in tank
External plate HEX
OFF
SW3-8
Heat meter WITHOUT
Heat meter
WITH Heat meter OFF
SW4
SW4-1
Multiple outdoor control
Inactive Active OFF
SW4-2
Position of multiple outdoor units control *6
Slave Master OFF
SW4-3
— — — OFF
SW4-4
Indoor unit only operation (during installation work) *3
Inactive Active OFF
SW4-5
Emergency mode (Heater only opera- tion)
Normal
Emergency mode (Heater only operation)
OFF *4
SW4-6
Emergency mode (Boiler operation) Normal
Emergency mode
(Boiler operation)
OFF *4
SW5
SW5-1
— — — OFF
SW5-2
Advanced auto adaptation
Inactive Active ON
SW5-3
Capacity code
SW5-3 SW5-4 SW5-5 SW5-6 SW5-7
PAC-IF07*B-E OFF OFF OFF OFF OFF
SW5-4 SW5-5 SW5-6 SW5-7 SW5-8
— — — OFF
SW6
SW6-1
— — —
OFF : PAC-IF071/072B-E ON : PAC-IF073B-E
SW6-3
Pressure sensor Inactive Active OFF
SW6-4
Analog output Inactive Active OFF
WIRING DIAGRAM

14
DIP Switch Functions
Located on the FTC printed circuit board are 6 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.
Only an authorised installer can change DIP switch setting under one’s own
responsibility according to the installation condition.
Make sure to turn off both indoor unit and outdoor unit power supplies before
changing the switch settings.
DIP switch Function OFF ON Default settings:
Indoor unit model
SW1 SW1-1 Boiler WITHOUT Boiler WITH Boiler OFF
SW1-2
Heat pump maximum outlet water temperature 55ºC 60ºC ON
SW1-3 DHW tank WITHOUT DHW tank WITH DHW tank ON
SW1-4 Immersion heater WITHOUT Immersion heater WITH Immersion heater ON
SW1-5 Booster heater WITHOUT Booster heater WITH Booster heater OFF
SW1-6 Booster heater function For heating only For heating and DHW OFF
SW1-7 Outdoor unit type Split type Packaged type ON
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 ON
SW2-2 Flow switch1 input (IN2) logic change Failure detection at short Failure detection at open OFF
SW2-3 Booster heater capacity restriction Inactive Active OFF
SW2-4 Cooling mode function Inactive Active OFF
SW2-5 Automatic switch to backup heat source op-
eration (When outdoor unit stops by error) Inactive Active OFF
SW2-6 Mixing tank WITHOUT Mixing tank WITH Mixing tank OFF
SW2-7 2-zone temperature control Inactive Active OFF
SW2-8 Flow sensor WITHOUT Flow sensor WITH Flow sensor ON
SW3 SW3-1 Room thermostat 2 input (IN6) logic change
Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open ON
SW3-2 Flow switch 2 and 3 input logic change Failure detection at short Failure detection at open OFF
SW3-3 — — — OFF
SW3-4 Electric energy meter WITHOUT Electric energy meter WITH Electric energy meter OFF
SW3-5 Heating mode function Inactive Active ON
SW3-6 2-zone valve ON/OFF control Inactive Active OFF
SW3-7 Heat exchanger for DHW Coil in tank External plate HEX ON
SW3-8 Heat meter WITHOUT Heat meter WITH Heat meter OFF
SW4 SW4-1 Multiple outdoor unit control Inactive Active OFF
SW4-2 Position of multiple outdoor unit control Sub Main OFF
SW4-3 — — — OFF
SW4-4
Indoor unit only operation (during installation work) Inactive Active OFF
SW4-5 Emergency mode (Heater only operation) Normal
Emergency mode (Heater only operation) OFF
SW4-6 Emergency mode (Boiler operation) Normal Emergency mode (Boiler operation) OFF
SW5 SW5-1 — — — OFF
SW5-2 Advanced auto adaptation Inactive Active ON
SW5-3 — — — OFF
SW5-4 — — — OFF
SW5-5 — — — OFF
SW5-6 — — — OFF
SW5-7 — — — OFF
SW5-8 — — — OFF
SW6 SW6-1 — — — OFF
SW6-2 — — — OFF
SW6-3 Pressure sensor Inactive Active OFF
SW6-4 Analog output signal (0-10V) Inactive Active OFF
SW6-5 — — — OFF
SW1
SW3
SW4
SW2
SW5
SW6

15
S1
S2
S3
L
N
L
N
BLACK
BLACK
YELLOW YELLOW YELLOW
YELLOW
BLACK
BLACK
CNO1
CNO1
CNO1
Black
CNO1
Black
FTC
(Master)
FTC
(Master)
S1
S2
S3
Initial settings
(Power supplied
by outdoor unit)
Modified settings
(Separate power
supply to
FTC(Master))
Power
supply
~/N
230V
50Hz
Earth
leakage
breaker
*1 *1
*1
*1
Wiring
circuit
breaker
or
Isolating
switch
L
N
S1
S2
S3
Outdoor unit
S1
S2
S3
TB2
TB1
L
N
ECB
Wiring
circuit
breaker
or
Isolating
switch
To control
board
ELB for
immersion
heater
(DHW tank)
L
N
Power
supply
~/N
230V
50Hz
Earth
leakage
breaker
Wiring
circuit
breaker
or
Isolating
switch
Power
supply
circuit
circuit
: PAC-IF071B-E
: PAC-IF072/073B-E
FTC (Master)
Power
supply
3N~
400V
50Hz
Earth
leakage
breaker
Wiring
circuit
breaker
or
Isolating
switch
L3
L2
L1
N
S1
S2
S3
Outdoor unit
S1
S2
S3
TB2
TB1
L
N
ECB
Wiring
circuit
breaker
or
Isolating
switch
To control
board
ELB for
immersion
heater
(DHW tank)
L
N
Power
supply
~/N
230V
50Hz
Earth
leakage
breaker
Wiring
circuit
breaker
or
Isolating
switch
circuit
circuit
FTC (Master)
~/N
230V
50Hz
Power
supply
~/N
230V
50Hz
FTC (Master) powered by independent source
If FTC (Master) and outdoor units have separate power supplies, the following
requirements MUST be carried out:
• FTC (Master) unit electrical box connector connections changed.
• Outdoor unit DIP switch settings changed to SW8-3 ON.
• Turn on the outdoor unit before the FTC (Master).
• Power by independent source is not available for particular models of
outdoor unit model.
For more detail, refer to the connecting outdoor unit installation manual.
Electrical connections 1 phase/3 phase
FTC (Master) power supply ~/N 230 V 50 Hz
FTC (Master) input capacity
Main switch (Breaker)
*1 16 A
Wiring
Wiring No.
× size (mm²)
FTC (Master) power supply 2 × Min. 1.5
FTC (Master) power supply earth 1 × Min. 1.5
FTC (Master) - Outdoor unit *2 2 × Min. 0.3
FTC (Master) - Outdoor unit earth —
Circuit
rating
FTC (Master) L - N *3 230V AC
FTC (Master) - Outdoor unit S1 - S2 *3 —
FTC (Master) - Outdoor unit S2 - S3 *3 24V DC
*2. Max. 120 m
*3. The values given in the table above are not always measured against the
ground value.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. FTC (Master) unit/outdoor unit connecting cords shall not be lighter
FTC (Master) unit power supply cords shall not be lighter than
3. Install an earth longer than other cables.
4.
Please keep enough output capacity of power supply for each individual
TB2
Clamps
Slot
TB1
Clamps
1 2 3 4 5
Notes: 1. Do not run the low voltage cables through a slot that the high voltage cables go through.
2. Do not run other cables except low voltage cables through a slot that the wireless receiver’s cable goes through.
3. Do not bundle power cables together with other cables.
Bundle cables as figure above by using clamps.
4.
*1. 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.
A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all active phase conductors of the supply.
Note: In accordance with IEE regulations the circuit breaker/isolating switch located on the outdoor unit should be installed with lockable devices (health and safety).
Wiring for PAC-IF07*B-E
1High voltage cables (OUTPUT)
2High voltage cables (OUTPUT)
3Low voltage cables (INPUT) and
wireless receiver’s cable
4Thermistor cables
5Power cables
Clamps
Clamps
<3 phase><1 phase>
Description Power supply Capacity Breaker Wiring
Immersion heater (DHW tank) ~/N 230 V 50 Hz 3 kW 16 A 2.5 mm²
*1
FIELD WIRING

16
WATER SYSTEM DIAGRAM
Balanced cold water draw-off
HWS supply
Balanced HWS and MCWS to bathrooms, showers, cloakrooms, etc.
To space heating circuit Zone 1
1
2
3
4
5
6
7
MCWS to Kitchen (unbalanced cold mains supply)
Incoming Cold Water Main
8
9
10
11
12
13
14
15 16
17
18
19
20
21
22
23
26
25
24
27
Parts shown within dashed line are supplied
Back flow prevention
Device (if fitted)
NOTE: If a device that prevents backflow is installed on the cold water supply to the PRV then a means of accommodating expansion due to local warming of the
pipe is recommended to be
fitted between the Device and PRV.
NOTE: A backflow prevention Device may include check valves, a water meter or an additional PRV
29 2830*
28 29
Discharge pipe to atmosphere (see page “Installation - Discharge”)
KEY 1 Heat Pump 13 Scale Trap 25 Primary circuit draw o󰀨 point 2 Cylinder 14 DHW Circulating Pump 26 Automatic Air Vent 3 FTC6 Controller 15 Flow Sensor 27 Di󰀨erential Pressure Bypass Valve 4 Immersion heater 16 Primary Pump 28 Strainer 5 3.5 bar Pressure reducing Valve incorporating 17 Primary Expansion Vessel 29 Isolating Valve Strainer and Check Valve (supplied loose) 18 Primary Pressure Relief valve 30 Air Vent* - 6 8 bar Expansion Valve and Check Valve 19 Magnetic Filter 7 DHW Expansion Vessel (supplied loose) 20 Primary System Pressure Gauge 8 Stop Cock 21 3 Way Motorised Diverter Valve 9 Mains Stop Cock 22 Low Loss Header incorporating ports for 10 Tundish 2nd heating zone and alternative heat source 11 Temperature/Pressure relief Valve 23 Heating Pump 12 Plate to Plate Heat Exchanger 24 DHW Draino󰀨 point
if the outdoor unit is higher than the indoor unit or if there is a location where aire gets trapped in the upper part of the water pipe consider adding this part

17
Zone1
Zone2
Zone1
Zone2
Optional 2 zone twin temperature control pack - plumbing schematic
Optional 2 zone control pack - plumbing schematic
Local System

18
Filling The Cylinder
CYLINDER UNIT - INITIAL FILL PROCEDURE
• BEFORE FILLING CHECK AND TIGHTEN ALL MECHANICAL JOINTS AND CONNECTIONS IN CASE THESE HAVE
LOOSENED DURING TRANSIT.
• Check expansion vessel pre-charge pressure. The vessel is supplied pre-charged to 3.5 bar to match the control pressure of
the pressure reducing valve. The pre-charge pressure is checked using a car tyre gauge by unscrewing the plastic cap opposite
the water connection.
• Check all connections for tightness including the immersion heater(s). An immersion heater key spanner is supplied for this
purpose.
• Ensure the drain cock is CLOSED.
• Open a hot tap furthest from the cylinder.
• Open the cylinder isolating valve to ll the unit. When water ows from the tap, allow to run for a few minutes to thoroughly
ush through any residue, dirt or swarf, then close the tap.
• Open successive hot taps to purge the system of air.
• Ensure all hot taps are closed to retain system charge.
CYLINDER UNIT - SYSTEM CHECKS
• Check all water connections for leaks and rectify as necessary.
• Turn o󰀨 water supply to the cylinder.
• Remove the Pressure Reducing Valve head work to access the strainer mesh, clean and re-t.
• Manually open, for a few seconds, each relief valve in turn, checking that water is discharged and runs freely through the
tundish and out at the discharge point.
• Ensure that the valve(s) re-seat satisfactorily and reinstate the cylinder water supply.
CYLINDER UNIT - INITIAL FLUSH PROCEDURE
• Energise system to heat-up cylinder unit contents to a temperature of approx. 30 - 40°C.
• Flush/drain the water contents to remove any residue/impurities resulting from the installation works.
• Use the cylinder unit drain cock to safely discharge the warmed water to drain via a suitable hose.
• On completion, close drain cock, re-ll system and resume system commissioning.
PRIMARY CIRCUIT - FILLING THE SYSTEM
• Check and charge expansion vessel.
• Check all connections including factory tted ones are tight.
• Insulate pipework between cylinder and outdoor unit.
• Thoroughly clean and ush, system of all debris. (see page 24 for instruction.)
• Fill cylinder unit with potable water. Fill primary heating circuit with water and suitable anti-freeze and inhibitor as necessary.
Always use a lling loop with double check valve when lling the primary circuit to avoid back ow
contamination of water supply.
• Check for leakages. If leakage is found, retighten the screws onto the connections.
• Pressurise system to 1 bar.
• Release all trapped air using air vents during and following heating period.
• Top up with water as necessary. (If pressure is below 1 bar)
• After removing the air, automatic air vent MUST be closed.
Fernox HP5-c frost protection levels:
10% Concentration provides frost protection to -4°C
20% Concentration provides frost protection to -9°C
30% Concentration provides frost protection to -14°C
DRAINING THE CYLINDER UNIT - WARNING: DRAINED WATER MAY BE VERY HOT
• Before attempting to drain the cylinder unit, isolate from the electrical supply to prevent the immersion heater burning out.
• Isolate cold water feed to DHW tank.
• Attach a hose to the DHW tank drain o󰀨 point. The hose should be able to withstand heat as the draining water could be very
hot. The hose should drain to a place lower than the DHW tank bottom to encourage siphoning.Open a hot water tap to start
draining without a vacuum.
• When the DHW tank is drained, close drain cock and hot tap.
• Attach hose to primary circuit drain o󰀨 point. The hose should be able to withstand heat as the draining water could be very hot.
The hose should drain to a place lower than the primary circuit drain o󰀨 point to encourage siphoning. Open the pump valve.

19
F1 F2 F3 F4
CONTROLS
B C D
E
A
Main remote controller
Main screen
<Main remote 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
C Back Return to previous menu.
DUsed to select or save. (Enter key)
E Power/Holiday 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 seconds 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
operate. Please beware that without these safety functions enabled the
cylinder unit may potentially become exposed to damage.
<Main screen icons>
Icon Description
1 Legionella
prevention
When this icon is displayed, ‘Legionella prevention
mode’ is active.
2 Heat pump ‘Heat pump’ is running.
Defrosting
Emergency heating
‘Quiet mode’ is activated.
3 Electric heater When this icon is displayed, the ‘Electric heaters’
(booster or immersion heater) are in use.
4 Target
temperature Target room temperature
Compensation curve
5 OPTION Pressing the function button below, this icon will dis-
play the option screen.
6 + Increase set temperature.
7 - Decrease set temperature.
8 Z1 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.
9 Space heating/
cooling mode
Heating mode
Zone1 or Zone2
Cooling mode
Zone1 or Zone2
10 DHW mode Normal or ECO mode
11 Holiday mode
When this icon is displayed, ‘Holiday mode’ activated.
12 Timer
Prohibited
Server control
Stand-by
Stand-by (*2)
Stop
Operating
13 Current
temperature
Current room temperature
Current water temperature of DHW tank
14 The Menu button is locked or the switching of the
operation modes between DHW and Heating opera-
tions are disabled in the Option screen.(*3)
15 SD memory card is inserted. Normal operation.
SD memory card is inserted. Abnormal operation.
16 Buffer tank
control
When this icon is displayed, 'Buffer tank control' is
active.
17 Smart grid
ready
When this icon is displayed, 'Smart grid ready' is
active.
*2 This unit is in Stand-by whilst other indoor unit(s) is in operation by
priority.
*3 To lock or unlock the Menu, press the BACK and CONFIRM keys
simultaneously for 3 seconds.
12 11 1 32
10
9
4
765
15 14
13
8
1617
To change the settings of your heating/cooling system please use the main
remote controller located on the front panel of the cylinder unit or hydrobox.
The following is a guide to viewing the main settings. Should you require
more information please contact your installer or local Mitsubishi Electric
dealer.
Cooling mode is available for ERS series only. However,
Cooling mode is not
available when the indoor unit is connected to PUHZ-FRP.

20
Setting the Main remote controller
After the power has been connected to the outdoor and cylinder units (See "7. FIELD WIRING"), the initial system settings can be entered via the main remote con-
troller.
1. Check all breakers and other safety devices are correctly installed and turn on power to the system.
2.
setting screen in order.
3. Main remote controller will automatically start up. Wait approximately 6 minutes whilst the control menus load.
4. When the controller is ready, a blank screen with a line running across the top will be displayed.
5. Press button E (Power) (refer to page 29) to turn on the system. Before turning on the system, perform initial settings as instructed below.
General Operation
●The highlighted icon will appear as a larger version of the centre of the screen.
● Press CONFIRM to select and edit the highlighted mode.
●
Follow the <Main remote controller Menu Tree> for further setting, using ◄► buttons for scrolling or F1 to F4 for selecting.
Main Settings Menu
The main settings menu can be accessed by pressing the MENU button. To reduce the risk of untrained
end users altering the settings accidentally, there are 2 access levels to the main settings; and the service
section menu is password protected.
User Level – Short press
If the MENU button is pressed once for a short time, the main settings will be displayed but without the edit
function. This will enable the user to view current settings but NOT change the parameters.
Installer Level – Long press
If the MENU button is pressed down for 3 seconds the main settings will be displayed with all functionality
available.
The colour of
▼
▼
The following items can be viewed and/or edited (dependent on access level).
• Domestic Hot water (DHW)
• Heating/Cooling
• Schedule timer
• Holiday mode
• Initial settings
• Service (Password protected)
Main menu
Long Press
Initial setting wizard
ime setting screen and Main
settings menu screen in order. Enter the desired number using the function keys and press CONFIRM.
Note:
<HEATER CAPACITY RESTRICTION>
This setting restricts the booster heater capacity. It is NOT possible to change the setting after starting up.
If you do not have any special requirements (such as building regulations) in your country,
skip this setting (select "No").
• Hot water (DHW/Legionella)
• Heating/Cooling
• Operation (ON/Prohibited/Timer)
• Pump speed
• Mixing valve control
• HEATER CAPACITY RESTRICTION
Initial settings wizard
DHW SETTINGS
Operation mode
Skip