TriTherma Slim MQD-8DC Owner's manual

(Heating, Cooling and Domestic Hot Water)
MQD-11DC
MANUAL OF INSTALLATION,
OPERATION AND MAINTENANCE
SPLIT MULTIFUNCTIONAL
AIR TO WATER HEAT PUMP
MQD-15DC
DC INVERTER TECHNOLOGY
MQD-8DC

INDEX
1. INTRODUCTION
2. DESCRIPTION OF UNIT
3. TECHNICAL DATA
6.OUTDOOR DIMENSION
7. SERVICE AREA
8. INSTALLATION
9.STARTING UP
........................................................................................................................
............................................................................................................
.......................................................................................................................
..................................................................................................................................
...........................................................................................................................
...................................................................................................................
.................................................................................................................................
3
3
5
7
7
8
18
PANEL10.CONTROL
11.UNIT OPERATION
12.TROUBLE SHOOTING
13.SOLAR SYSTEM CONNECTION
14.MAINTENANCE
...........................................................................................................................
.....................................................................................................................
19
20
.....................................................................................
26
27
..........................................................................................................................
28
....................................................................................................
4.OPERATION LIMITS
.......................................................................................................................
6
5.INDOOR DIMENSION
.......................................................................................................................
6

1. INTRODUCTION
The unit purchased by you has been subjected to strict quality control before leaving the factory. It also me
on it. The repair and maintenance must be con ducted by your service / maintenance installer.
It is the responsibility of the installation company performing the installation in accordance with the characteristics the project,
subject to the regulations. Before installating the necessary equipment read this manual, and carry out the directions and obserations
in it.
The manufacturer does not responds to any damages
You should check the receiving unit, which is in perfect condition. If otherwise appropriate to make a written complaint to the carrier.
3
ets the safetystandards
of the CE. Do not tamper with the unit ,or subject to conditions of work not specified in this manual, you may lose any guarantee
and / or indirect, caused by improper installation.
The equipment should be installed only by a duly accredited professional.
6-77:@-:*=42,=62<*4457-.4;
Item Part
1 Electric
2 Plate heat exchanger
3 Electric
4 Water control
5 Wire controller
6 Water
7 Air discharge
8 Safety
9 Expansion
10 Pressure
11 Electric 3 way
12 Water
13 Needle
1
4
5
10 12
11
9
7
3
3
13
2
box
heater
PCB
tank
valve
valve
tank
Gauge
valve
pump
valve
Name
2. DESCRIPTION OF UNIT
6
8

2. DESCRIPTION OF UNIT
1. IPM Module
7. Refrigerant filter
3. 4-way valve
10. Injection Valve
8. Accumulator
4. Liquid service valve
5. Gas service valve
9. Compressor
11. Liquid seperator
12. Outdoor fan guard and fan
13. Copper fin heat exchanger
6. Expansion valve
4




2. Outdoor control board

3
4
5
10 6
7
8
9
11
12
13
=<-77:&62<

3. TECHNICAL DATA
 %$
* Capacities and consumption based on the following conditions:
- Heating: Temperature inlet / outlet water 30/35 ° C. Temperature wet / dry air 6 ° C / 7 ° C.
- Cooling: Temperature inlet / outlet water 23/18 ° C. Dry air temperature 35 º C.
- DHW: Outlet water temperature 45 º C. Temperature wet / dry air 6 ° C / 7 ° C.
* Refrigerant charge is valid for a line length of 5 meters.
* The net weight of the indoor unit does not include the weight of accumulated water in it.
* The sound pressure level is measured at 5 meters from the unit.
5
Capacity Nominal KW 10.6 14.2
Consumption Nominal KW 2.52 3.45
COP W/W 4.21 4.12
Capacity NominalKW KW 10.82 14.5
Consumption Nominal KW 2.91 4.46
EER W/W 3.72 3.25
Capacity Nominal KW 9.72 12.9
Consumption Nominal KW 3.01 3.49
COP W/W 3.23 3.7
Power supply V/Ph/Hz
Gas line Inch 5/8”
Liquid line Inch
Compressor type
Refrigerant type
Refrigerant charging volume Kg. 2.4 2.95
Inner water tank Litre
Pressure max climate Bar
Climate expansion tankvolume Litre
Climate output mm
DHW water output mm
Tap water/Climate/DHW water input mm
DHW/Climate safety valve mm
Drain valve mm
Unit Dimension Indoor unit mm
(HeightxWeightxLength) Outdoor unit mm 860x870x325 960x970x345
PackedDimensions Indoor unit mm
(HeightxWeightxLength) Outdoor unit mm 980x985x415 1080x1085x465
Net weight Indoor unit Kg. 54 55
Outdoor unit Kg. 75 100
Packedweight Kg. 60 61
Outdoor unit Kg. 85 112
Noise level Indoor unit dB(A)
Outdoor unit dB(A) 48 49
Maxpipe length m
Max height difference m
Minwater flow L/S 0.5 0.7
730*460*322
830x550x425
50
30
6
25
25
25
15
15
3/4”
3/8”
Scroll
R-410A
12
7
Heating
Cooling
D.H.W.
TECNICAL CHARACTERS
MQD-11DC MQD-15DC
230V,1Phase,50Hz
MQD-8DC
Rotary
8.95
1.5
5.97
8.14
1.78
1.78
8.51
1.76
4.84
2
29
860x395x955
39
Indoor unit
52
45
63
45
0.4
830x310x700

4.OPERATING LIMITS
8.:*<260252<;
7742607-.
Tª Outdoor Air Temp ºC
Temperatura Salida de Agua ºC
8.:*<260252<;
.*<2607-.
Tª Outdoor Air Temp ºC
Temperatura Salida de Agua ºC
8.:*<260252<;
(7-.
Tª Outdoor Air Temp ºC
Temperatura Salida de Agua ºC
6
6-77:&62<*4457-.4;
730
460 330
5.INDOOR DIMENSION

6.OUTDOOR DIMENSION
 %
Dimensions in mm.
C
D
Gasline
Connection
Liquid
Connection
E
B
A
Outdoor Unit MQD-8E/MQD-11E/MQD-15E
7
MODEL DIMENSIONS (in mm)
MQD-11DC
MQD-15DC
A
860
960
B
870
970
C
325
345
D
365
415
E
500
640
MQD-8DC 830 700 310 350 350
7. SERVICE AREA
The following is the minimum space needed to carry out the tasks of service and maintenance of the units.
=<-77:&62<*4457-.4;
 %
Dimensions in mm.
200
1.000
300
500

8.INSTALLATION
Here are a series of recommendations to follow for proper installation of the unit.
Installation,repair and maintenance of these units must be made with caution because the presence of electrical,
electronic and circuit pressure system refrigerant.Only trained and qualified personnel should perform all
installation,adjustment and maintenance unit.
The manufacturer declines all liability for negligence and breach of safety standards described below:
- Work in total safety, free from obstacles and clean environment.
- Comply with regulations.
- Before commissioning of the unit, excellent condition confirm the same and its components.
- Wear safety goggles and gloves while working. Use quenching cloth during operations welding.
- Put in place strong units that can support the weight bearing and allow the right posterior maintaining it.
- Use the specified cables and make a proper connection at the terminals.
- Make a separate attack unit.
- Check the supply voltage corresponds to the plate.
- Perform the corresponding ground.
- Perform the work safely install hydraulic and drainage pipes as shown of this manual.
- During operation of the drive circuit part5s refrigerant.(compressor line download) can reach temperatures.
inside the unit.
- The unit can work in environments "normal" residential, commercial or light industry. The unit can not be installed in
explosive atmosphere environment. For applications Special should consult the manufacturer.
Before starting the installation or maintenance operations of the unit disconnect switch general power. Electrical
shock can cause personal injury.
above 70 º C. Take special care when accessing the
8.1 SAFETY CONSIDERATIONS
MOST IMPORTANT!
1. Make sure it is not in cooling mode during first operation or test running, until you make sure
the air conditioning water pump is working properly and water circuit is recycling soothly.
2. Recommand to test the water pump working condition and water circuit directly before switch
on the heat pump.
3. Select a big enough water pump for the air conditioning water circuit.
4. Always keep the electricity connnection with the heat pump to enable inner antifreeze
function wich is valid with electrcity supply.
8

8.INSTALLATION
Inspect units of receipt to verify any damage or damage during transport. If the unit is damaged you must file a claim
immediately to the company who made the shipment.
6<.:27:7,*<2767/&62<
The indoor unit is designed for installation inside the
housing. For this, the inner cabinet has the same action at its base
that a common household. It also has the possibility of
adjust its height due to small height-adjustable feet.
When installed inside the unit must be left open the door area
access, being necessary to leave the spaces described in paragraph
7 (Service Areas).
7,*<2767/ =<-77:&62<
The outdoor unit must be placed in proper orientation to
climatic characteristics of the region where it is installed.
It should be positioned so that air circulation is free and well
avoid recirculation effects detrimental to performance.
When installing the outdoor unit must be left free the front of the
unit, which is necessary to leave the spaces described in paragraph 7
(Service).
All hydraulic connections are labeled as shown in Figures 1 and 2:



1. Refrigerant Liquid valve
2. Refrigerant gas valve
3. Air conditioning water outlet
4.Domestic hot water outlet
5.Water inlet
8.2 Location of units
8.3 Hydraulic connections
9

8. INSTALLATION
It is necessary to conduct the outlet safety valves of the tank to drain
There is one water pump build inside of our heat pump indoor unit, but the installer need to calculate water flow required and to
overcome the pressure drop during installation machine.
Please check the wiring diagram with the unit for the water pump electricity connection.
A small pump may cause a malfunction or even a fault irreparable.
Hydraulic Circuit Connection
Water Pump
Important:
The selection of air conditioning water pump out of the unit should take based on the flow rates
of cooling and heating,internal drop unit (see graph) and the drop of the facility.
Calculation of nominal water flow:
Q water (l / h) = Cooling Capacity* 0.86 (Kcal / h) / T (º C)
As T = (T first exit water temp - water return Temp) _T = 5 º C
Example: ModelMQD-14
Q water=(14,600W * 0.86)Kcal / h / 5 ° C=2500 l/h
! #%% The temperature difference in air conditioning heat exchanger should be 5 º C approx.A high temperature
difference can cause a malfunction of the unit and even irreparable damage to it.
Water flow (m3 / h)
1 m.c.a = 10 Kpa
The graph indicates the pressure drop of cooling water circuit of the unit (components inside the unit).
Pressure drop (m.c.a)
MQD-15DC
MQD-8DC/MQD-11DC
MQD-17DC
There is one built in water pump(C1) for both DHW and air conditioning. But additional water pump for DHW(C2)
and water pump for air conditioning(C3) can be applied according to actual installation.
Tritherma air conditioning Pressure Drop in Hydraulic Circuit
Air Conditioning Water Pump Selection
It is important keep enough water flow to ensure the heat pump optimized COP and
keep the whole system safe.
10

The water shortage in cooling operation could cause irreparable damage to the unit.
A water flow switch must be installed outside the unit for air conditioning operation to avoid any damage to the unit. The control
The DHW water tank must be with coil heat exchanger inside, so the tank water is clean and seperated with heat pump
After all connection is finished, connect the power supply, NOT SWITCHING ON THE UNIT.
-Open the tap water and let the tap water go into the heat pump hydraulic recycle.
-Open air discharge valve of inner water tank on the top and open air discharge valves of all fan coils. The water pump
-Close air discharge valve when water comes out continuously.
- Open a point of hot water consumption to flush the system.
* A water regulation valve(Normally 1.5-2.5 bar) must be installed before tap water go into the heat pump inlet.
* Check the correct rotation of water pump axis after uncover the maintenance screw with a scew driver.
.Before assure the water pump is working well and water flow is correct, Put the unitin HEATING mode.
- Check the water pressure gauge installed in the control panel of indoor unit, it must be between 1 and 2.5 bar
(normal 1.5 bar) for properoperation.
- Ensure that all secondary facility is found with water pressure and completely purged of air. The existence of air
in the air conditioning circuit can cause irreparable damage unit.For this reason, air discharge valve should be
installed in the highest part of the hydraulic circuit to remove all air from the system.
Water Flow Switch
Important:
Filling and pressure testing for Hydraulic Circuit
8. INSTALLATION
hydraulic recycle.
maintenance screw
choose air conditioning heating mode to fill the air conditioning side.
-Switch the inner 3 way valve to fill water for both side :
heating temp to 10 centigrade.
maintenance screw can also be loosed to purge air.
should be connect to IN5 of indoor unit control board.
In order to avoid compressor running, firstly set both Domestic hot water target temp and air conditioning
-Set target water temp back after complete installation and check everything ok
Turn on the unit and choose DHW mode, after DHW side air is purged completedly and filled with water,
11

8.INSTALLATION
-It is recommanded to connect the air conditioning water pump directly to the electricity, ie, turn on water pump
only for air conditioning circuit for some time,to eliminate the existence of such air circuit.
Do not connect the unit for operation of the pump. When connecting the unit and not the water pump
independently, it could cause irreparable damage in the unit.
-The unit must be equipped with a mesh water filter outside as shown Figure 7 whose mission is to retain dust or dirt
which might remain in the cooling circuit of the house. Figure 7
The dirt from the installation may cause irreparable damage to the unit.
- Once the connections and filling, and prior to starting the unit, it is recommended operating the air conditioning
circuit pump for a while, to retain the mesh filter particles and impurities that could be installed. To this should be
wired air conditioning pump directly to the network.
- Once that is done, and the pump stopped, it should close the stopcocks of input and output on the water circuit
drain water tank through the drain valve and clean the filter. Then fill again the circuit.
- To ensure that no dirt on the circuit, should make this operation as often as necessary.
- Having ensure that the air cooling circuit is clean, insert glycol, if necessary, approximately 20% -30% for cold area.
- Should perform periodic reviews, including cleaning the filter and to ensure that there is no dirt inside the water
circuit. Especially in the first installation.
Attention!
Attention!
During cold climate area, inserting Glycol is necessary to make sure the heat pump won't be damaged during
Attention!
electricity accident. Keep always electricity connection to ensure auto antifreeze.
If the heat pump won't be used for a long time, please drain the system water out.
12

8.INSTALLATION
- The installer must protect the power line drive disconnecting devices
circuit breaker suitable for installation in accordance with the legislation.-
- Remove the access panel to the control panel located on the front side of the unit.
- Check that the network characteristics match the data on the nameplate of the unit.
- Perform power and interconnection between the interior and exterior units through the 2 presses on the side of
.
- Ensure that power cords have the correct section for the total consumption
Unscrew the unit control box panel to access the terminals of indoor unit.
automatic magneto-thermal switch and
the unit.
8.4 ELECTRICAL CONNECTIONS
Before any electrical installation work to ensure that the main switch is disconnected
General Recommendations
In the outdoor unit:
In the indoor unit:
13
Before commissioning of the unit must perform the following connections:
-Main supply of outdoor unit.
-Connection from outdoor unit terminal block to indoor terminal block.
The indoor unit power supply must come from the outdoor unit.
2 communication cables no polarity
3 x 4 mm cables of SUPPLY 230/1/50
SUPPLY
ELÉCTRIC
Power supply (connection and interconnection between units)
Checking Wiring diagram with the unit before connection
INDOOR UNIT OUTDOOR UNIT
MODEL Outdoor power supply Indoor power supply Communication
MQD-8/MQD-11/MQD-15 3x4mm 3x4mm Signal(no polarity)
2x 0.5mm
- The power to the unit must be within a range of voltage
Attention: The ground wire must be slightly larger than the cable phases.
The installer must protect the power line of the unit with devices
breaker,suitable for installation according to law.
By incorporating an electric heating unit, it is necessary to take them into account when sizing
theindoorunit.
Power cables of the unit type can not be lighter than coated flexible cable
Ordinary polychloroprene (designation H05 RN-F).
The commissioning of the unit in an incorrect line voltage is not covered under warranty
and its length must be greater than that of the wires.
automatic switch ,circuit breaker and circuit
supply line of
connecting cable
Very Important: Protection against indirect contact
Pay special attention to the connection of the protective earth cable.Must be the first

9. INSTALLATION
Wiring Diagram
Indoor Unit
Outdoor Unit
14
2nd AC Switch Usage
The 2nd switch function enable our heat pump to be controlled by any additional user's thermostat
or remote switches for convenient control.
Function: When 2nd switch is off, the heat pump AC mode will run on standby mode no matter the AC
water temp reach target or not. When 2nd switch is on, the heat pump will run according to set temp.
A Connected to
manual switch
.B Connected to any user's thermostat.C Connected to both manual switch
together with any user's thermostat
.
IN7(10)

8.INSTALLATION
The interconnection lines refrigerant is as follows:
- The indoor unit has identified the taking of gas and liquid, with stickers identifying, the
follows:
Gas line: Gas (coolant) / Gas (refrigerant)
Liquid line: liquid (coolant) / Liquid (refrigerant)
- All refrigerant connections, as well as water, are threaded.
- You have to isolate the lines to avoid condensation and heat loss.
- Once you have installed the lines, to empty into the circuit refrigerant indoor unit until a
-1 Kg/cm2 pressure for at least 2 hours.
- The discharge circuit refrigerant and refrigerant charge can be made through service valves
sideoftheoutdoorunit.
- Check for leaks in the circuit refrigerant.
6 26-77:=62<
indoor unit (see paragraph 6.Dimensiones scheme) and since the connections are made .
The indoor unit comes with a dry nitrogen load incorporated. The refrigerant lines of the units
interior are a series of adapters and nuts to ensure proper seal until use.
6 &% #&%
The outdoor unit is shipped with a load of R - 410A applies to a line length
maximum equivalent of 5 meters. For lengths over 5 meters is necessary to add load according
to the table in paragraph 9.7.
located on the right
8.5 REFRIGERANT SYSTEM CONNECTIONS
General considerations
Connection between indoor and outdoor units
15

8.INSTALLATION
Once the connection refrigerant system between indoor and outdoor, and once it has been found
tightness of this connection, we proceed to the realization of the vacuum in the unit to which it will
the following process:
-With the outdoor unit’s service valves closed (as the unit is delivered from
the factory), remove the plugs of these service valves.
- Connect the pressure gauge connection in the following way:
Make the low pressure gauge connection to the gas service valve.
Make the high pressure gauge connection to the liquid service valve.
Make the centre bridge of the gauge connection to the vaccum pump.
- keep the pump running and open the valves of the bridge of gauges,
so that we ensure the refrigerant circuit system depression by both
refrigerant lines and the indoor unit.
- Perform a vacuum to ensure that the gauge indicates 1 bar.
-Once the vacuum to turn off the bridge of gauges and off the vacuum pump,
making sure that pressure is maintained vacuum for at least 15 minutes.
-If pressure is not stable means there is a leak in the circuit, so you need to
locate and remedy it. Once cured repeat the above steps.
-If vacuum pressure is stable (it may already be done when
necessary refrigerant charge) disconnecting the bridge
Manometer pressure
Low High
gauge of the vacuum pump first, and keep the bridge
gauge closed ends connected to the valves
or service lines, as appropriate for each model.
Vaccum
Pump
- The outdoor unit is shipped with a charge of refrigerant R-410A is valid for a
length of line maximum equivalent of 5 meters.
- Perform opening the service valves.
- For superior line lengths to 5 meters, recharge the unit as shown in table recharge
refrigerant.
- To recover all the refrigerant charge in the outdoor unit for maintenance, just to shut off the liquid valve.
After the pressure is reduced to 0 Pa, shut off the gas valve
8.6 CONDUCT OF VACUUM REFRIGERANT SYSTEM INSTALLATION
NOTE:
16

8.INSTALLATION
The outdoor unit incorporates the refrigerant charge (R410A) necessary for the proper functioning of
the unit to a length of interconnecting pipe 5 meters.
If the interconnection line is greater than 5 meters, we should make a refrigerant addiction
according to the following table:
Additional refrigerant charge (g / m)
DIÁMETER 3/8” 5/8” 3/4”
LÍQUID
GAS
60
-
-
8
-
10
-
Enter the refrigerant charge in liquid phase
.
In the outdoor unit has two pressure connections (suction and
compressor discharge), through which pressure can be measured
evaporation and condensation of the system in any
three functions (DHW, Heating and Refrigeration).
Indoor unit incorporates two pressure taps, which
DHWand heating mode with high pressure measured,
and cooling mode with low pressure.
High or low pressure, depending
Operating mode
Low pressure High pressure
8.7 REFRIGERANT CHARGE (R-410A)
8.8 PRESSURE MEASUREMENT LOCATION
NOTE:
OUTDOOR UNIT
INDOOR UNIT
17

9.STARTING UP
- Confirm that the power is in accordance with the nameplate of the unit and been conducted according to current
regulations.
- Ensure that all electrical connections are well made and according to wiring diagram.
- Check the air conditioning filter is clean water.
-with water and has made the
corresponding vent through the manual traps.
- Check the setting pressure filling group. This pressure must always be less than 2.5 Bar
- Check that all door panels are properly mounted with screws for you.
- Check that all valves of the hydraulic system of air conditioning are open.
- The operation and use of electronic control is explained in Chapter 12. Electronic Controller.
After performing the electrical installation manual for installation and connection electrical, check the following:
- Check the firmness of the attachment of power cables and switching in both the outdoor unit and the inside.
- Activate the differential electrical circuit breaker of the unit.
- Check that the tension in the outdoor unit is located between the indicated value range in the table in paragraph 4
(electrical data). If you were outside these values should not be starting the unit.
- The unit is operated through electronic controller multiprocessor.
- To start the unit press the Start / Stop for 1 second.
- You can select the following modes:
• Water heating and cooling. The priority is to
with the production of cold water for cooling.
the production of hot water for heating.
- Changing temperatures.
• The unit is shipped with a set point temperature selected by default.
• Modify and adapt these temperatures to the installation of side we have: soil heating, fan coil, etc..
• In extreme weather conditions may be appropriate to amend these
Check that the deposits of inertia of climate and the accumulation of DHWare filled
• Hot water. The unit produces only satisfy the demand forDHWwhen such demand is s atisfied, we continued
• Hot water and heating. The priorit y is to sati y the d nd hen such demand is satisfied, we continued withemasf wfor DHW
DHW
- Enable the operation of the unit in DHW, as indicated in paragraph 12 of this manual.
-Once enabled mode, the unit will start to reach set temperature and stop after gain the set temperature.
- Check the pump rotation DHW.
-In the first implementation of the unit, you should consume DHW to the temperature of selected accumulation.
-Enable the operation of the unit heating or cooling mode,as shown in paragraph 12 of this manual.
- After you enable the selected mode, and whenever the unit is not working hal and DHW mode, the unit will start and
send hot or cold water (depending on heating or cooling of the secondary cooling circuit to achieve the set temperature
-Once you have obtained this temperature, the unit will stop, but the cooling water pump continue in operation.
- In operation for heating and cooling, check the water temperature drop (- T ª return). This jump should be about 5
the unit will start and send hot or cold water (depending on heating or cooling)
° C.
9.1 CHECK TO BE PERFORMED BEFORE STARTING UP
9.2 POWER CHECK
9.3 TEMPERATURES SELECTION
9.4 OPERATION IN MODE D.H.W.(Domestic hot water)
9.5 OPERATION MODE AIR CONDITIONING
18

10.CONTROLPANEL
10. 1 Wire controller
Wire controller contains a LCD and 6 operational keys (as show below). It can keep memory when power off
and be a timer.
10.2. Key functions
(1)Double-colored indicator light: when standby, blue light on; when compressor worked, red light on; when
breakdown happened, red light on. For more details, please check fault code sheet.
(2)Key “on/off”: power on /power off.
(3)Key “time adjusting”: adjust clock or set time.
(4)Key “down”: it’s a combined key to decrease numerical value, continuous press, then continuous decrease;
short press, then decrease by 1.
(5)Key “up”: it’s a combined key also, but opposite to down key. Continuous press, then continuous increase;
short press, then increase by 1.
(6)Key “confirm”: confirm previous operations
(7)Key “mode”: operational mode’s switch. It’s a combined key also.
10.3. Icon Meaning
NO. Icon meaning NO. Icon meaning NO. Icon meaning
8 Clock display 9 Returned AC Temp. 10 Maintain icon
11 Lock icon 12 Temperature icon (Reserved) 13 Parameter number icon
14 AC Cooling icon 15 Sterilization icon 16 AC heating icon
17 Sanitary hot water icon 18 Water/ground source display 19 Parameter icon
20 Domestic Hot Water
temp
21 Timer on icon 22 Timer off icon
20 Sterilization days dis-
play
21 Sterilization on display 22 Sterilization off display
23 Clock icon
19

11.
UNIT OPERATION
11. 1 Switch the unit On and off
To start the unit, press and hold the On/Off key for one second
To stop the unit, press and hold the On/Off key for one second
11. 2 Mode switch（5 modes in total）
A. Under mode standby or On, press the M key repeatly, the following icons will flash by recycling.
AC cooling -> AC heating -> DHW(Domestic hot water)-> AC cooling + DHW ->AC heating +
DHW When selected a mode, press button to confirm, then the icon will be solid,
.
B. When in mode AC cooling +DHW or AC heating & DHW, DHW heating will be the priority.
C. When select DHW mode, only hot water system working, no air conditioner working.
D. When select air conditioner mode, only air conditioner system working, no sanitary hot water system working.
E. Sterilization is independent and auto-operated. You can change parameter according to need.
11.3 Procedures of setting parameter change
A. When in settled mode, the unit will operate as factory default temp or last modified temp.
.
compressor will stop at 50degree for protection in case of tank coil application, then the backup electric heater will heat
The above sanitary hot water target temp is the watertank temp, when target temp is above 50degree, the heat pump
the water to higher temp.
20
B. Modification method for settled temperature
In the on / standby mode, press key M and for 3 seconds, the current operating mode light will flash;
by press the M key, you can switch modes in the following order: Cooling / heating / hot water / sterilization;
press to confirm the mode and press key ▲or ▼to setting value, then press key to confirm, then exit
and save current changes;
if didn’t press key to confirm, it will exit the parameter modification automatically 15 seconds later. Pre-
vious Changes will not be saved.
Detailed settings as follows:
NO. Meaning Settled temperature
range
Default temperature operation for modify settled para-
meters
1 AC cooling returned
water temp 10℃～25℃12℃M+ →M→ →▲or▼→
2 AC Heating returned
water temp 10℃～55℃45℃M+ →M→ →▲or▼→
3 sanitary hot water
heating （AU）10℃～60℃50℃M+ →M→ →▲or▼→
4 Legionella
Anti-bacteria 60℃～70℃65℃M+ →M→ →▲or▼→
C. Time setting procedure for health sterilization
Only select DHW mode, Legionella function will work.If not select DHW mode, Legionella function will not work.
.
In on or standby mode, first, press key M and for 3 seconds, second, press key M ,15 icon appears, then
press the ▲ or ▼ to set sterilization temperature, press key to confirm, the number of days will flash and
show the original or default value 7 (that means 7 days), press key ▲ or ▼ to increase or decrease the number
of days at predetermined intervals, the minimum of 7 days, maximum of no more than 99 days, after that ,press
key to confirm. At this time, "ON" character appears, "hour" appears and flashes, show the original setting
or the default value (default value 01 means it will start at 1:00 am), followed by press key ▲ or ▼ to modify
(0-23) ,after that, press key to confirm, then the new time start running. "ON" character disappears, "OFF"
character appears, "minute" value flashes and shows the original or default value (default value is 10), followed
by press key ▲ or ▼to change (minimum is 10, maximum no more than 99), after that press key to confirm
and exit change mode. If didn’t press key to confirm, machine will exit change mode automatically after 15
seconds. But settings did right now will become invalid.