Arctic Heat Pumps MAFP020A Service manual

1
INSTALLATION &
INSTRUCTION
MANUAL
EVI DC INVERTER
AIR TO WATER HEAT
PUMP

2
Table of Contents
I. Specification ............................................... 0
Technical Parameters of Arctic Air to Water
Heat Pumps ...................................................... 0
Heating Performance Table ............................... 1
Recommended Circulation Pump (External)...... 2
Product Dimensions ....................................... 3
II. Installation ................................................. 4
Heat Pump Installation..................................... 4
Hot Water Storage Tank and Buffer Tank
Installation ....................................................... 6
Installation of Indoor Heating and Cooling
Equipment ........................................................ 7
Water Pipe Connections ................................. 7
Installation of the Temperature Detector... 8
Electrical Wiring .............................................. 8
What Gets Connected and Where..................... 9
Trial Operation by Qualified Installer ........ 11
III. Installation Illustrations ................... 13
Hydronic and Domestic Hot Water Heating .... 13
Fan Coil and Domestic Hot Water Heating ...... 14
Air Handler and Domestic Hot Water
Heating ........................................................... 15
Hydronic Heating (Priority), & Fan Coil
Cooling with Domestic Hot Water .......... 15
Hydronic heating (Priority), Domestic
Hot Water & Fan Coil Heat & Cooling ... 16
IV. The Use of the Wired Controller ....... 21
Buttons and Display Symbols Explanation 21
Wired Controller Operations...................... 21
Checking of State Parameters....................... 2
V. Maintenanceand Repair ...................... 3
AntifreezeProtectionoftheUnit ....................... 3
Malfunction Code Table ..................................... 4
Quick Fixes ....................................................... 6
Appendix................................................................ 7
Wiring Diagrams................................................. 7
Intelligent Defrost .............................................. 9
Exit Defrost Mode................................................... 9
Back Up Heating................................................. 9
Eco ULTRA Integration ..................................... 10
Multiple Heat Pumps ....................................... 12
Wiring Option Appendix....................................... 14
Wiring –HEATING Hydronic Pump (HY)........... 15
Wiring –HEATING Fan Coils (FC)...................... 16
Wiring –HEATING Air Handler (AH)................. 17
Wiring –COOLING Fan Coil (FC)*..................... 18
Wiring –COOLING Air Handler (AH)*............... 19
Wiring –COOLING & HEATING Air Handler (AH)*
.......................................................................... 20
Modifying a standard tank to a buffer tank..... 21
WARRANTY........................................................... 22

3
Notice
Save this manualfor futurereference. To use this product better and more safely, please read this manual carefully
before installation and initial operation.
Thisheat pump must beinstalledby qualified and experiencedtechnicians/trades-persons. Improper
Installation ofthis heat pump may causedamageand danger.
This heat pump must beinstalledinaccordance with local wiringregulations including anisolating switchfrom the
supply mainsand grounded powersupply consistentwith the power specificationofthis heat pump.
The installation ofthis heat pump must comply with the model's wiring chart in this manual and its power
requirements as stated on the rating label on the side ofthe heat pump.
Do not install this heat pump close toflammable orexplosivematerials,oropen flames.
Checking and cleaning of the evaporatorfin coil regularly is recommended for good andefficientair flow.

0
I. Specification
Technical Parameters of Arctic Air to Water Heat Pumps
Model
MAFP020A
MAFP040A
MAFP060A
Rated Cooling Capacity(kW) ①
7.5
12.5
150
RatedInputPower(kW)①
3.0
4.1
6
Rated InputCurrent(A) ①
13.63
18.63
27.3
PerformanceCOP(W/W)①
2.5
2.5
2.5
Rated Heating Capacity(kW) ②
10.5
16.0
20
RatedInputPower(kW)②
2.83
4.41
5.54
Rated InputCurrent(A) ②
12.86
20.04
25.2
PerformanceCOP(W/W)②
3.71
3.62
3.61
Rated Heating Capacity(kW) ③
8.5
14.0
17
RatedInputPower(kW)③
2.7
4.4
5.35
Rated InputCurrent(A) ③
12.27
20.01
24.3
PerformanceCOP(W/W)③
3.14
3.18
3.18
Power Supply (V/Ph/Hz)
220-240/1/60
220-240/1/60
220-240/1/60
Maxwater outputtemp ( ℃ )
60
60
60
Sound level(dba)
55
55
55
Compressor type
Rotary
Rotary
Rotary
CompressorQty
1
1
1
Waterinlet/outletpipediam.(inch)
1"
1"
1"
Recommended WaterFlowVolume(USGPM)
6.5
11
13
Pressure drop at Recommended Flow Rate
(Ft)
15
21
21
Refrigerant type
R410a
R410a
R410a
Weight
110 KG
170 KG
180 KG
ASSUMPTIONS①Outdoorairtemp35℃/24℃,Inletwatertemp12℃,Outletwatertemp7℃(Coolingmode)
②Outdoorairtemp7℃/6℃,Outletwatertemp45℃(Heatingmode)
③Outdoorairtemp7℃/6℃,Outletwatertemp55℃(Heatingmode)
* Usinghydronicradiantskirtingboards,noteunderfloorheatingsizingdependsonthefloorcovering,tilesaremoreefficient,carpetleastefficient.
COP CURVE

1
Heating Performance Table
ARCTIC 020A
Power Input (W)
Outdoor Temp.
Water Inlet Temp.
≤10℃
10℃＜Ti≤20℃2050 2108 1881 1907 1883 2038 1734 1696 1605
20℃＜Ti≤32℃2311 2348 2454 2201 2187 2106 2193 2144 2060
32℃＜Ti≤38℃2692 2704 2656 2617 2615 2524 2722 2796 2685
38℃＜Ti≤43℃2895 2934 2868 2913 3020 2706 2989 3101 2951
43℃＜Ti≤48℃3177 3219 3067 3257 3242 2946 3231 3285 3244
48℃＜Ti≤53℃3290 3250 3296 3257 3189 3070 3302 3079 3100
53℃<Ti 3259 3236 3320 3271 3245 3105 3149 3209 2993
Heating Capacity (W)
Outdoor Temp.
Water Inlet Temp.
≤10℃
10℃＜Ti≤20℃5809 6860 7200 8290 9824 12657 13351 15638 17812
20℃＜Ti≤32℃5615 6756 7509 8372 9891 11240 12609 15437 17304
32℃＜Ti≤38℃5404 6603 7160 8343 9726 10189 12098 14696 16511
38℃＜Ti≤43℃5501 6633 6993 8220 9786 9861 11905 14484 15969
43℃＜Ti≤48℃5529 6658 6843 8069 9443 9360 11420 13810 15561
48℃＜Ti≤53℃5245 6027 6652 7081 8279 8454 10311 11882 13612
53℃<Ti 4544 5240 5668 6284 7306 7718 8817 10588 11619
COP (W/W)
Outdoor Temp.
Water Inlet Temp.
≤10℃
10℃＜Ti≤20℃2.83 3.25 3.82 4.35 5.20 6.21 7.66 9.22 11.09
20℃＜Ti≤32℃2.43 2.88 3.06 3.82 4.52 5.34 5.75 7.17 8.37
32℃＜Ti≤38℃2.01 2.44 2.69 3.19 3.72 4.04 4.44 5.26 6.14
38℃＜Ti≤43℃1.90 2.26 2.44 2.82 3.24 3.64 3.99 4.67 5.40
43℃＜Ti≤48℃1.74 2.07 2.24 2.48 2.91 3.18 3.54 4.19 4.79
48℃＜Ti≤53℃1.59 1.85 2.02 2.17 2.6 2.75 3.14 3.86 4.39
53℃<Ti 1.40 1.62 1.70 1.92 2.25 2.49 2.81 3.31 3.89
-22℃<Tout
-22℃<Tout
-22℃<Tout
-22℃<Tout≤-15℃
-22℃<Tout≤-15℃
-22℃<Tout≤-15℃
-15℃<Tout≤-9℃
-15℃<Tout≤-9℃
-15℃<Tout≤-9℃
-9℃<Tout≤-3℃
-9℃<Tout≤-3℃
-9℃<Tout≤-3℃
-3℃<Tout≤4℃
-3℃<Tout≤4℃
-3℃<Tout≤4℃
4℃＜Tout≤11℃
4℃＜Tout≤11℃
4℃＜Tout≤11℃
11℃＜Tout≤18℃
11℃＜Tout≤18℃
11℃＜Tout≤18℃
18℃＜Tout≤26℃
18℃＜Tout≤26℃
18℃＜Tout≤26℃
26℃＜Tout≤35℃
26℃＜Tout≤35℃
26℃＜Tout≤35℃
Tout＞35℃
Tout＞35℃
Tout＞35℃
ARCTIC 040A
2989 2965 2879 2844 2768 2787 2510 2431
3358 3355 3117 3260 3093 3338 3183 3186
4082 3975 3941 3788 3706 3769 3876 3941 4077
4322 4282 4243 4187 4225 4017 4250 4295 4585
4683 4697 4637 4616 4694 4304 4600 4729 4521
5012 4870 4956 4678 4708 4721 4684 4701 4561
4932 4973 4845 4909 4759 4741 4185 4300 4409
9482 10782 11204 13750 17330 19719 21159 23807
9528 11041 11549 13882 16617 19664 22801 24968
8098 9560 10786 11898 13785 15604 18571 21760 25701
8265 9337 10430 11533 13534 14404 17655 20988 25041
8342 9621 10225 11607 133328 13405 16752 20063 22870
7988 9248 9647 9937 11526 13126 15422 16931 19728
6657 7336 8087 9079 9860 11780 11195 13502 16051
3.17 3.61 3.89 4.84 6.26 7.06 8.45 9.79
2.84 3.29 3.71 4.26 5.38 5.89 7.18 7.84
1.99 2.4 2.75 3.14 3.72 4.14 4.79 5.52 6.3
1.91 2.18 2.46 2.75 3.2 3.58 4.16 4.89 5.46
1.78 2.05 2.22 2.49 2.85 3.12 3.64 4.23 5.06
1.59 1.9 1.95 2.12 2.45 2.78 3.3 3.6 4.32
1.35 1.48 1.67 1.84 2.07 2.48 2.67 3.14 3.64
-22℃<Tout
-22℃<Tout
-22℃<Tout
-22℃<Tout≤-15℃
-22℃<Tout≤-15℃
-22℃<Tout≤-15℃
-15℃<Tout≤-9℃
-15℃<Tout≤-9℃
-15℃<Tout≤-9℃
-9℃<Tout≤-3℃
-9℃<Tout≤-3℃
-9℃<Tout≤-3℃
-3℃<Tout≤4℃
-3℃<Tout≤4℃
-3℃<Tout≤4℃
4℃＜Tout≤11℃
4℃＜Tout≤11℃
4℃＜Tout≤11℃
11℃＜Tout≤18℃
11℃＜Tout≤18℃
11℃＜Tout≤18℃
18℃＜Tout≤26℃
18℃＜Tout≤26℃
18℃＜Tout≤26℃
26℃＜Tout≤35℃
26℃＜Tout≤35℃
26℃＜Tout≤35℃
Tout＞35℃
Tout＞35℃
Tout＞35℃

2
ARCTIC 060A
Power Input (W)
Outdoor Temp.
Water Inlet Temp.
≤10℃
10℃＜Ti≤20℃3593 3512 3604 3555 3452 2768 2787 2510 2431
20℃＜Ti≤32℃4044 4013 4149 4091 3982 3093 3338 3183 3186
32℃＜Ti≤38℃4845 4767 4677 4858 4516 3769 3876 3941 4077
38℃＜Ti≤43℃5095 5179 5028 5108 5153 4017 4250 4295 4585
43℃＜Ti≤48℃5575 5566 5234 5626 5776 4304 4600 4729 4521
48℃＜Ti≤53℃5738 5807 5436 5710 5788 4721 4684 4701 4561
53℃<Ti 5779 5734 5779 5646 5675 4741 4185 4300 4409
Heating Capacity (W)
Outdoor Temp.
Water Inlet Temp.
≤10℃
10℃＜Ti≤20℃10088 11878 13083 15011 17064 17330 19719 21159 23807
20℃＜Ti≤32℃9954 11737 13017 15016 17055 16617 19664 22801 24968
32℃＜Ti≤38℃10001 11752 12933 15389 16696 15604 18571 21760 25701
38℃＜Ti≤43℃9834 11759 13003 14520 16853 14404 17655 20988 25041
43℃＜Ti≤48℃9667 11527 12166 14561 16651 13405 16752 20063 22870
48℃＜Ti≤53℃9227 10592 11355 13308 14309 13126 15422 16931 19728
53℃<Ti 8480 9499 10056 11092 12175 11780 11195 13502 16051
COP (W/W)
Outdoor Temp.
Water Inlet Temp.
≤10℃
10℃＜Ti≤20℃2.81 3.38 3.62 4.22 4.92 6.26 7.06 8.45 9.79
20℃＜Ti≤32℃2.46 2.92 3.14 3.7 4.28 5.38 5.89 7.18 7.84
32℃＜Ti≤38℃2.07 2.46 2.77 3.17 3.69 4.14 4.79 5.52 6.3
38℃＜Ti≤43℃1.93 2.26 2.59 2.84 3.27 3.58 4.16 4.89 5.46
43℃＜Ti≤48℃1.74 2.07 2.32 2.59 2.88 3.12 3.64 4.23 5.06
48℃＜Ti≤53℃1.62 1.82 2.09 2.33 2.47 2.78 3.3 3.6 4.32
53℃<Ti 1.47 1.65 1.74 1.96 2.15 2.48 2.67 3.14 3.64
-22℃<Tout
-22℃<Tout
-22℃<Tout
-22℃<Tout≤-15℃
-22℃<Tout≤-15℃
-22℃<Tout≤-15℃
-15℃<Tout≤-9℃
-15℃<Tout≤-9℃
-15℃<Tout≤-9℃
-9℃<Tout≤-3℃
-9℃<Tout≤-3℃
-9℃<Tout≤-3℃
-3℃<Tout≤4℃
-3℃<Tout≤4℃
-3℃<Tout≤4℃
4℃＜Tout≤11℃
4℃＜Tout≤11℃
4℃＜Tout≤11℃
11℃＜Tout≤18℃
11℃＜Tout≤18℃
11℃＜Tout≤18℃
18℃＜Tout≤26℃
18℃＜Tout≤26℃
18℃＜Tout≤26℃
26℃＜Tout≤35℃
26℃＜Tout≤35℃
26℃＜Tout≤35℃
Tout＞35℃
Tout＞35℃
Tout＞35℃
Recommended Circulation Pump (External)
Technical Specifications
UPS26-99FC (240 VAC):
Voltage: 230 VAC
Amperage at Speed 1: 1.3
Amps;
Amperage at Speed 2: 1.5
Amps;
Amperage at Speed 3: 1.8
Amps;
Hertz: 60 Hz;
Phase: 1;
Watts at Speed 1: 150W;
Watts at Speed 2: 179W;
Watts at Speed 3: 197W;
Max Pressure: 145 psi;
Max Temperature: 230F;
Min Temperature: 36F;
Flow Range: 0-33 GPM;
Head Range: 0-29 ft;
Horse Power: 1/6HP;
Body: Cast Iron;
Connections: Flanged, 1/2",
3/4", 1", 1-1/4";

3
Product Dimensions
mm/inches
Size
MAFP
040A & 060A
A
440mm/17.”
B
760mm/29.9”
C
1195mm/47”
D
1285mm/50.6”
Size
MAFP
020A
A
440mm/17.3 ”
B
760mm/29.9 ”
C
1145mm/45 ”
D
840mm/33 ”
B
A
C
D
B
A
C
D

4
II. Installation
Heat Pump Installation
This heat pump requires good air flow through the fin coils for maximum efficiency. Also, hotter outside air
temperature in cooling mode and colder outside air temperature in heating mode will reduce performance of the heat
pump. Therefore, the hot/cold discharged air in cooling/heating modes from the heat pump should not be allowed to
deflect back to the air inlet.
Please keep enough space around the heat pump for repairs and maintenance.
Wrong
Right
Installation Considerations:
The installation position should have good ventilation.
The installed heat pump should not make extraneous noises or rattling sounds.
Try to minimize direct sunlight onto the unit.
Water from rain or defrost mode will be discharged through a drain hole in the base plate. So unit must be
raised in freezing climates to avoid ice build up.
The outlet air position should not face into a prevailing wind direction or this will reduce performance
efficiency.
Try to site the heat pump so the outlet air does not discharge directly onto a fence or towards a neighbor.
The installation position should not be located next to flammable or explosive materials, or open flames.
The heat pump should be protected from oil (such as engine oil in a factory environment), salt (such as sea spay
or salty air) and/or sulphides (that may be present in the air from industrial activity or a thermal spring).
The heat pump should ideally be installed on a raised stand, preferably secured to a concrete pad. Alternately,
the heat pump can be installed on a balcony, ledge, wall or roof provided there is a suitable load-bearing
platform in place capable of supporting the weight of the unit and not transmitting vibration noise.
There should be a drain-pipe or channel from the heat pump to take the condensate water away

5
Do not install the control panel in a wet environment which may cause the control panel to malfunction.
In cold regions where heat pump will be used primarily for heating, the unit should be raised off the ground 18-24” to
allow ice accumulation below the drain hole, otherwise drain pan will become plugged.
Elevate Heat Pump in Freezing Climate Drain hole
Basic Layout

6
Installation Space Requirements:
Buffer Tank Installation
Site Selection
The Buffer tank should be installed indoors
When there is a chance of freezing, glycol/water mixture should be used in the buffer tank.
The buffer tanks should be installed on a concrete pad and comply with local codes, so the tanks remain
upright and stable.
Some building codes require seismic restraint. Consider restraining the buffer tanks with stainless steel bands.
Ensure the specification label is visible.
A pressure limiting valve (pressure release valve) must be fitted with buffer tanks, consult local building
codes.
A pressure and temperature relief valve must be supplied with the domestic hot water tank, consult local
building codes
A tempering (mixing?) valve for hot water supply to bathrooms may be required by some local codes
A drain must be included to allow full and complete draining of the tank.
It is recommended that the hot water outlet pipes are fully insulated with weather proof insulation such
as Armaflex or equivalent, to prevent heat loss externally
The hot water outlet pipes should be angled down by 15 deg C minimum for the first 250mm (10 inches)
after exiting from the hot water storage or buffer tanks. This will create a heat trap that will avoid any
thermal siphoning from the tanks.
Fill the storage and buffer tanks by opening the pressure release or air release valve on top of tank to
release buildup of air pressure in the tank as fluid volume enters tank. Check all pipes for any signs of leaks.
Power should not be turned on until the tanks are completely filled with water.
≥600mm
≥1500mm
≥200mm
≥600mm
Unit
Bolt
fix
≥500mm
≥600mm
Unit
Bolt
fix
Unit
Air inlet
≥300mm
Air outlet
≥200mm
≥500mm
≥200mm

7
Installation of Indoor Heating and Cooling Equipment
Indoor heating and cooling equipment such as fan coils, radiator heating or floor heating, should be
installed in accordance with relevant regulatory requirements, engineering design drawings, and the
manufacturer's installation instructions.
Use flexible piping to connect the heat pump and indoor heating and cooling equipment, such as PEX or
flexible stainless steel or flexible cooper.
If using fan coils to cool be sure to install condensate water drain pipes to the indoor fan coil units with
smooth drainage lines for the condensate water to flow easily.
Water Pipe Connections
Water pipe material should be heat resistant and rust-proof. This can be stainless steel, copper, aluminum,
hot water PEX pipes, etc., according to local standards.
The pipework of the system should follow the relevant standards, and transition to match the connection
size of the heat pump
The hot water storage and buffer tank drain port and pressure and temperature relief valve should be
installed to allow for proper drainage according to relevant standards.
The pump is installed INDOORS located on the water inlet line (lower line) with arrow on pump flowing to the
heat pump. Be sure to add an isolation shut off valves to service pump in the future.
The hot water storage and buffer tank must be installed with an isolating valve to allow for maintenance.
The water pipes should be arranged with minimal bends to reduce pressure loss in the system.
The water inlet should be fitted with a one-way check valve (found in the UPC 26-99fc pump) and
isolating valves for service
After all the pipes are connected, the system should be tested at water supply pressure for 24 hours to
ensure that the system does not leak. Then insulate relevant hot water and cold pipes, and ther plumbing
fittings.
In order to discharge all air from the water pipeline, the water supply return pipe should have an
automatic air bleeding valve installed at the highest point.
An expansion tank must be installed into the system to absorb expansion of the closed loop as temperature
increases in the system. It should be installed on suction side of pump.
It is recommended to install in the water flow and return a thermometer and water pressure gauge to
enable monitoring of key operational parameters.
Note:
1. The recommended pressure of the heat pump loop should be 11-20 psi.
2. The water pipes should be subjected to a pressure test before operation of the heat pump twice the
operating pressure.
3. A drainage pipe should be installed to drain from the pressure and temperature relief valve.
4. The pressure and temperature relief valve should be periodically exercised by gently pulling the lever up.
This will help to remove possible accumulation of calcium carbonate and ensure that the valve is working
properly.
5. Install one-way (check) valves, shut on valves, pressure and temperature relief valves, and any other
plumbing fittings consistently with the marked flow direction and in accord with relevant local standards.

8
Installation of the Temperature Detector
1. Firstly, place a small amount of heat conductive silicone onto the front of the temperature sensor, then
insert it into the temperature thermowell port.
2. Next, push the temperature sensor through to the end of the thermowell, then mark the depth of the pin
on the sensor wire.
3. Next, pull the senor and check that the position of mark is at the same depth as the end of the sensor well
to ensure the sensor is inserted into the sensor well all the way (use a thin wire to check depth of sensor
well)
4. Finally, seal the inlet of the temperature detector with silicone.
Electrical Wiring
The heat pump should use dedicated power cable with voltage and current capacity following the electrical code
given the voltage and amperage rating of the heat pump and circulating pump
Outdoor rated disconnect must be installed near the heat pump as per local codes.
The power cable for the heat pump must be outdoor rated and protected in a metal jacket or conduit.
The heat pump power supply circuit must have a grounding wire, which should connect with a reliable and
effective external ground wire.
Wiring must be installed by qualified electrician with reference to the circuit diagram.
The layout of power wires/cables and control cables should be neat, well supported and with power and control
cables separated so they cannot interfere with each other.
When power lines and control cables are parallel, the wires must be placed inside conduit, with appropriate
distance between the cables.
For electrical connection of the heat pump, pull the following wiring through the wiring hole of the electrical
box, then connect to the appropriate terminals in the electrical box according to wiring diagram:
· Power cable (240 VAC)
· Digital Controller cable
· Electric back up heater switch control cable
· Temperature tank sensor cable
· Pump cable (240VAC)
· Optional 3-way Valve cable (240 VAC)

9
Electrical Wire Selection –Warning
The internal compressor motor insulation does not protect the compressor against all possible conditions.
Please be sure that the system is properly grounded when installed in the field.
To avoid fire, electric shock and other accidents, only use the power supply voltage indicated on the label.
To protect the power cables, they should be secured appropriately so that they cannot become
damaged and people cannot trip over them. Outdoor rated wire should be used from the disconnect to the
heat pump
Dedicated circuits should be used to avoid overloading breakers from other appliances.
Check to ensure your electrical cable and fuse rating is appropriate for the power load and is properly
grounded.
Specification Table of Power Code (single unit)
Mode
Power
Amps
Fuse
Wire size
020
040
060
208~240V/1PH/60Hz
13.6
20 Amps
12 AWG
040
20.0
30 Amps
10 AWG
060
24.5
40 Amps
10 AWG
What Gets Connected and Where
Electrical wiring should be performed by a qualified electrician. There are 5-6 required connections that will need to be
connected indoors. A hole should be drilled where the wires will transition through the wall
Main Supply Power –240 VAC –Must have an outdoor disconnect
Pump Output Power –240 VAC AWG #16
Control Panel (mount indoors)
Hot Water Tank Sensor
Back Up Heat Control (dry contact)
Optional 3 –Way Valve Output for Cooling -240 VAC AWG #16

10

11
See Appendix for Detailed Wiring Options

12
Trial Operation by Qualified Installer
Pre-start-up checks:
Check the entire pipe system. Ensure the system is full and the air is removed completely. Check whether
the valves are open throughout the system.
Check the thermal insulation of the pipe work, make sure relevant pipes are appropriately insulated
(hot and cold).
Check the power supply and distribution system. Check whether the power supply voltage is correct (240
volts), the power connection screws are tight, supply power complies with the wiring diagram and heat
pump specifications and the equipment is properly grounded.
Press and hold on/off button on the digital controller. The water pump should start immediately. The
compressor should start shortly after. Observe and determine if there is any abnormal sound during
operation. If so stop the unit and determine the cause. The heat pump should be restarted only when
the cause has been fixed and there is no more abnormal sound.
Check whether the input power and current of the unit are within the parameters set out in this manual
under Parameters (C1 and C7 2017 and older models and A4 and A13 on 2019 and newer). If not,
stop the heat pump and check it.
Observe whether the outlet water temperature is normal. Should be 2-6 degrees above the inlet
temp (Parameter Ce and Cd- 2017 and older and o2 and o3- 2018 and newer )
The parameters of the remote controller have been pre-set at the factory. We recommend that you
leave these parameters as set.

13
III. Installation Illustrations
Hydronic Heating
With Optional Hot Water Coil

14
Fan Coil Heating
With Optional Hot Water Coil

15
Air Handler Heating
With Optional Hot Water Coil

16
Hydronic Heating (Priority) Fan Coil Cooling
With Optional Hot Water Coil