evoheat COMMAND-i User manual

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Command-i Series Manual
Page 1
Contents
1. Introduction...............................................................................................................................................2
2. Dimensions...............................................................................................................................................3
3. Safety Instructions ....................................................................................................................................4
4. Installation ................................................................................................................................................5
4.1 System Installation ..............................................................................................................................5
4.2 Location of Installation ........................................................................................................................5
4.3 Airflow Clearances ..............................................................................................................................5
4.4 Plumbing.............................................................................................................................................6
4.5 Hot Water Circuit Diagram ..................................................................................................................6
4.6 Heating (Cooling) Water Circuit Diagram ............................................................................................6
4.7 Electrical Connection ..........................................................................................................................6
4.8 Cable & Switch....................................................................................................................................7
4.9 Initial Start-Up .....................................................................................................................................7
5. Operation..................................................................................................................................................8
5.1 The Controller .....................................................................................................................................8
5.2 Operating Functions............................................................................................................................8
5.2.1 On/Off...........................................................................................................................................8
5.2.2 Mode Selection.............................................................................................................................8
5.2.3 Setting the Target Temperature ....................................................................................................8
5.2.4 Locking the Screen.......................................................................................................................8
5.2.5 Setting a Timer .............................................................................................................................9
5.2.6 Settings ........................................................................................................................................9
6. Troubleshooting......................................................................................................................................12
7. Appendix ................................................................................................................................................15
7.1 Wiring Diagram .................................................................................................................................15
7.2 Cable Specifications..........................................................................................................................17
8. Maintenance...........................................................................................................................................18
8.1 F.A.Q ................................................................................................................................................18
9. Warranty.................................................................................................................................................19

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Command-i Series Manual
Page 2
1. Introduction
This manual contains information relating to the installation, troubleshooting, operation, and maintenance of this
EvoHeat unit. Instructions in this manual must always be followed. Failure to comply with these recommendations will
invalidate the warranty. Should you have any questions or require technical support, call the EvoHeat office on 1300
859 933 to speak to our team.
The data and information contained in this manual is correct at the time of publishing and is subject to change without
notice. For the most up to date manual, contact EvoHeat directly.
Designed with the latest inverter technology, the Evo Command-i is the
smarter choice for commercial space and water heating and cooling.
The Evo Command-i Series is ideal for commercial and industrial water and
space heating applications, including: hotels, resort, commercial buildings,
sporting and leisure facilities, industrial liquid heating and chilling
applications.
TECHNICAL DATA Command-i 40 Command-i 90 Command-i 210
Hot Water Capacity kW 40 90 210
Water Outlet L/h 860 1930 4503
Heating Input Power kW 8.5 19.70 45.7
C.O.P / 4.7 4.57 4.6
Building Heating A kW 13~45 16~95 74.8~215
Heating Input Power kW 4.7~15.3 9.5~28.9 18.8~75.4
C.O.P / 2.3 2.43 2.42
Building Cooling kW 9.4~33 20~74.3 46.6~132
Cooling Input Power kW 3.9~15.8 8.70~25.65 16.5~56.2
EER / 2.02~2.73 2.52~2.95 2.35~2.82
Heating IPLV / 3.25 3.2
Power Supply / 380-415/3/50 380-415/3/50 380-415/3/50
Max Input Current A 36.8 51 135
Water Connection / DN40 DN65 DN80
Water Flow L/min 115 172 602
Water Pressure Drop kPa 75 70 100
Noise dB(A) 56~65 56~69 63~72
Net Weight kg 468 733 1250
Dimensions (L/W/H) mm 1195/980/1900 2170/1150/2130 2481/1331/2367
Hot water conditions: ambient temp. (DB/WB): 20°C/15°C, water circulation is from 15°C to 55°C Building heating A: ambient temp. (DB/WB):
7°C/6°C, water temp (in/out) 40/45°C Building cooling: ambient temp. (DB/WB): 35°C/24°C, water temp (in/out) 12/7°C

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Command-i Series Manual
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2. Dimensions
Command-i A (L) B (W) C (H) D E F G H
40 1195 980 1900 925 598 517 516 360
Command-i A (L) B (W) C (H) D E F G H
90 2170 1150 2130 1590 1098 614 575 164
Command-i A (L) B (W) C (H) D E F G H I
210 2481 1331 2367 1770 1278 530 360 356 215
Unit: mm

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Command-i Series Manual
Page 4
3. Safety Instructions
Installation, repair, or relocations must only be done by a fully qualified technician. If done incorrectly there is
a number of hazards that can occur including fire, electric shock, water leakage and injury.
•When an abnormality (smell of burning, etc.) occurs, stop the unit and disconnect the power or turn off the
breaker. If the unit continues to be operated in an abnormal condition, it may cause a fire or hazards.
•Do not insert fingers or objects into the fans or evaporator of the unit.
•Installation, repair or relocations must be done by a fully qualified person and not by the customer. If done
incorrectly it may cause fire, electric shock, water leakage and other hazards.
•For unit cleaning or maintenance, switch off and disconnect the power of the unit.
•Do not spray insecticides or flammable sprays around the unit, it may cause a fire or damage the unit’s
cabinet.
•Do not install the unit near flammable gas or spray flammable substances near it.
•Ensure the heat pump is installed on a strong and stable platform.
•A circuit breaker must be installed for the unit.
•Use supply wires suitable for 75C.
•The heat pump located inside the unit is equipped with an over-load protection system. It does not allow for
the unit to start for at least 3 minutes from a previous stoppage.
•Copper or iron must not be used as a fuse. An electrician must use the correct fuse for the heat pump.
•Make sure that the unit and power connection have good earthing.
•If the supply cord is damaged, it must be replaced by the manufacturer, our service agent or a similarly
qualified person in order to avoid a hazard.
•Caution: Single wall heat exchanger, not suitable for potable water connection.

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Command-i Series Manual
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4. Installation
4.1 System Installation
When transporting the unit ensure that it is kept upright, lying the unit down may damage inner parts of the unit.
Upon receiving the unit, check the packaging for any obvious signs of damage. Inform EvoHeat immediately if there is
any evidence of rough handling.
4.2 Location of Installation
The heat pump can be installed onto the concrete basement by using expansion screws, or onto a steel frame with
rubber feet which can be placed on the ground or the roof. Ensure that the unit is placed horizontally.
•The unit can be installed in any place outdoors which will be able to support the weight of a heavy unit such as
a terrace, roof, the ground and any other places deemed suitable.
•The location must have good ventilation.
•The location must be free from heat radiation and other fire hazards.
•A pall is needed in winter to protect the unit from snow.
•There must be no obstacles near the inlet and outlet of the unit.
•The installation location must be protected from strong winds or air.
•There must be a water channel around the heat pump to drain condensing water.
•Leave enough space around the unit for maintenance.
4.3 Airflow Clearances
Single
Unit
1500mm
overhead
clearance
Multiple
Units
1000mm
clearance
on all sides
Note:
•Do not cover the air outlet of the
unit.
•If there is a barrier above the unit,
keep it at least 3000mm above the
unit.
•If there are objects stacked around
the unit, their height should be at
least 400mm lower than the top of
the unit.
•When installed in a small room,
measures should be taken to
prevent leakage of the refrigerant.
Once leakage volume exceeds the
limit concentration, it may cause
suffocation. Contact EvoHeat for
specific measures.
Flow guide dev ice
(Note: when h>3m, take h=3m)
Water inlet or
outlet space
Maintenance
space
>45°
h
+h
>1500 +h
>500
400
>1000 >1000 >1000
>1500
100 0100 0100 0100 0
100 0
100 0
1000
1000
≥1500

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4.4 Plumbing
When the water pipe is connected:
•Try to reduce the resistance to the water from the piping.
•The piping must be clear and free from dirt and blockage. A water leakage test must be carried out to ensure that
there is no water leaking before the installation can be made.
•The pipe must be tested by pressure separately. DO NOT test it together with the unit.
•There must be an expansion tank on the top point of the water loop, and the water level inside the tank must be at
least 0.5meters higher than the top point of the water loop.
•The flow switch is installed inside of the heat pump, check to ensure that the wiring and action of the switch is
normal and controlled by the controller.
•Try to avoid any air from being trapped inside the water pipe, there must be an air vent on the top point of the
water loop.
•There must be a thermometer and pressure meter at the water inlet and outlet for easy inspection during running.
4.5 Hot Water Circuit Diagram
4.6 Heating (Cooling) Water Circuit Diagram
Flexible Pipe Gate Valve Check Valve Level Controller
Differential
pressure
bypass
valve
Pressure Gauge Shut-off Valve Thermometer (0-100) Electric two-way valve
Water Valve Solenoid Valve Y Type Water filter Water flow Switch
4.7 Electrical Connection
Always use a qualified Electrician to perform any electrical work. A licensed electrician must read the
information before connecting.
•Open the front panel and open the power supply access.
•The power supply must go through the wire access and be connected to the power supply terminals in the
controlling box. Then connect the 3-signal wire plugs of the wire controller and main controller.
•If an external water pump is required, please insert the power supply wire into the wire access and connect it
to the water pump terminals.
•If an additional auxiliary heater is needed to be controlled by the heat pump controller, the relay (or power) of
the aux-heater must be connected to the relevant output of the controller.

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4.8 Cable & Switch
•The unit should use an independent power supply, wiring as required for Table 6.1. Power supply voltage
must be in line with the rated voltage.
•Power supply circuit must be equipped with an All-pole disconnect device and have at least 3mm contact
opening distance.
•Wiring is only to be performed with a professional technician in accordance with the circuit diagram.
•The Power supply circuit must have an earth wire. The earth wire of the power should be connected with the
external earth wire safely. The external earth wire must be in order correctly.
4.9 Initial Start-Up
Pre-Inspection
•Check the indoor unit, make sure that the pipe connection is done correctly, and the relevant valves are open.
•Check the water loop to ensure that the water inside of the expansion tank is filled to an appropriate level, and
the water supply is working, and the water loop is full of water and free of trapped air. Make sure there is good
insulation for the water pipe.
•Check the electrical wiring. Make sure that the power voltage is normal, the screws are fastened, the wiring is
made in line with the diagram and that the earthing is connected.
•Check that the heat pump includes all the screws and components, and that they are in good order. When
powering the unit on, review the indicator on the controller to see if there is any indication of failure. The gas
gauge can be connected to the check valve to see the high pressure (or low pressure) of the system during
trial running.
Trial Running
•Start the heat pump by pressing the ‘POWER’ button on the controller. Check whether the water pump is
running, if it runs normally there will be 0.2MPa on the water pressure meter.
•When the water pump has ran for a minute, the compressor will start. Listen for any strange sounds from the
compressor, if an abnormal sound occurs please stop the unit and check the compressor. If the compressor
runs well, look for the pressure meter of the refrigerant.
•Check whether the power input and running current is in line with the manual. If not, stop and check.
•Adjust the valves on the water loop to make sure that the hot (cool) water supply to each door is good and
meets the requirements of heating (or cooling).
•Review whether the outlet water temperature is stable.
•The parameters of the controller are set by the factory, the user must change these themselves.

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5. Operation
5.1 The Controller
Power Turn the unit on or off
Setpoint Set the target temperature
Mode Select heating or cooling mode
Lock Lock or unlock the screen
Timer
Enter timer setting menu (Temp
Timer, Power Timer & Mute
Timer)
Setting Enter function menu (Status,
Parameter, Failures & Time)
Target temperature of inlet water
Unit’s set date & time
Display Circle Blue: Cooling mode, Red: Heating
Mode, Grey: Off
Icons will appear at the top right of the screen indicating certain functions that are enabled, or if there has been an
error with the system.
Temp Timer
Function
Mute
Function
Defrost
Mode
Electric Auxiliary
Heating
Power Timer
Mode
Screen
Lock
Failure Alarm (The icon will blink until
the failure is resolved)
5.2 Operating Functions
5.2.1 On/Off
From the main menu, simply press the ‘Power’ button to turn the unit on or off.
5.2.2 Mode Selection
From the main menu, pressing the ‘Mode’ button will allow you to select either heating or cooling mode. The status
bar (bottom of the screen) will display the unit’s current operating state.
The display circle will appear as red for heating, or blue for cooling. If the unit is off, it will simply be grey.
5.2.3 Setting the Target Temperature
To adjust the target temperature value, first choose a running mode (heating or cooling), then press the ‘Setpoint’
button to enter the parameter setting screen.
Enter the required parameter according to the effective range which is displayed at the bottom of the screen.
5.2.4 Locking the Screen
From the main menu, press the ‘Lock’ button to lock the controller screen and prevent unauthorised people accessing
the controls.
When the screen is locked a small lock symbol will appear on the top right of the main menu.
To unlock the screen, press the ‘Lock’ button again and enter the password 22 which will unlock the screen and
remove the lock symbol.

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5.2.5 Setting a Timer
After pressing the ‘Timer button from the main interface, select from Temp Timer or Power Timer.
5.2.5.1 Temperature Timers
This function enabled time-sharing temperature control, which is two segments of staggered peak temperature control,
and allows the target temperature of two segments of different time periods to be set according to different modes.
Press (23) to select from cooling or heating mode, then enter the start time, ending time and the target temperature
setpoint value (24). Press (25) to enable or disable the settings.
5.2.5.2 Power Timer
This function allows you to set the opening time of the unit for each day of the week.
Press (26) to select the day of the week, then (27) to select AM or PM, after this press (28) to select the time, and
finally select (29) to enable or turn off the setting.
5.2.5.3 Mute Timer
From the Timer menu, then press the Mute Timer button. Enter the start and end for the timer, then press the on/off
button to enable or disable the function. When this function is enabled, a mute icon will appear on the main screen.
Note*: If the unit does not have the mute timer option, the function is not available.
5.2.6 Settings
After pressing the ‘Setting’ button on the main menu, you can select from a range of functions.
5.2.6.1 Status
Press Status (30) to choose from Running Status or Unit Status.
Running Status
See below image.
Unit Status
Enter the password 22 to inquire the unit status parameter. Press one of the 4 buttons to inquire relevant parameters.

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Running Status Screen
Unit Status Screen
5.2.6.2 Parameters
After pressing the parameter button (31) from the settings menu, enter the password 22 to jump to the Installer
Parameter interface for inquiring about relevant parameters.
5.2.6.3 Failure
When a failure is present, the red failure alarm will be flashing on the main menu. First press ‘Settings’ then ‘Failure’
to view the failure records.
Once maintenance has been completed, press the ‘clear’ button the delete the failure history.
5.2.6.4 Time
To change the system’s date & time, click on the input field and enter the correct values. Press ‘save’ in the top right
corner to save the settings.

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5.2.6.5 Temperature Curve
Press (34) to view the inlet/outlet temperature curve.
•This curve function records the water inlet outlet temperature.
•Temperature data is collected every 5 minutes, and the 12 sets of temperature data are saved every hour.
Timekeeping is made from the latest data saving. If the power is disrupted before all 12 data sets have been
collected the data will not be saved.
•Only curve for the electricity status is recorded, the outage status will not be saved.
•The value of the abscissa indicates the time from the point on the curve to the current time point. The leftmost
point on the first page (0 on the abscissa is the latest temperature record).
•Temperature curve record is provided with power off memory function; in the case of a disturbed curve recording
and display, when the unit is next powered on the wire controller will automatically clear the history curve record
and the curve recording function will restore to a normal state.
5.2.6.6 Electric Heating
In the settings menu, the Electric Heating option will display as ‘OFF Electric Heating’. Make sure that the unit is firstly
in heating mode, then press the electric heating button to head to its interface. Click the button to turn it on to activate
the electric auxiliary heating mode. Turn off the function my tapping the button again.
5.2.6.7 Fast Mute
The button will initially display as ‘OFF Fast Mute’ or ‘ON Fast Mute’. Press the button to enable/disable this function.
5.2.6.8 Display Calibration
Enter the Unit status menu in the following order (see 5.7.1 Status for password):
Main Interface Setting Status Unit Status
Click the screen in the bottom left corner over 10 times within 4 seconds to bring up the display calibration interface.
Click the blank squares to check whether there are bad spots within the screen. Green spots are normal.
To exit, click the screen in the bottom right corner.

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6. Troubleshooting
Protect/Fault Fault
Display Reason Elimination Methods
Communication Fault E08
Abnormal communication between wire
controller and the main board
Inspect whether the wire controller, the main
board and the connection thereof are reliable
The Wire Controller Does Not
Match The Mainboard
E084
DC Fan Board 1
Communication Fault
E081
Communication of the speed regulation module
1 with main board is abnormal
"Check the speed regulation module 1 and
the main board and if their connections are
normal and reliable."
Syst1: High Pressure Prot. E11
The high-voltage switch of the system is
disconnected
Inspect System 1 voltage switch and
refrigerating circuit for any failure
Syst2: High Pressure Prot. E21
The high-voltage switch of the system is
disconnected
Inspect System 2 voltage switch and
refrigerating circuit for any failure
Syst1: Low Pressure Prot. E12
The low-voltage switch of the system is
disconnected
Inspect System 1 voltage switch and
refrigerating circuit for any failure
Syst2: Low Pressure Prot. E22
The low-voltage switch of the system is
disconnected
Inspect System 2 voltage switch and
refrigerating circuit for any failure
Water Flow Switch Prot.
E032
The water system has no or only few water
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any damages
Electric Heater Overload Prot. E04 Electric heating overheat protection switch is
disconnected
Inspect whether the electric heating is under
operation condition of over 150℃for a long
time
Primary Antifreezing Prot. In
Winter
E19 Excessively low environment temperature
Secondary Antifreezing Prot.
in Winter
E29 Excessively low environment temperature
Syst1: User Side Antifreezing
Prot.
E171
The water flow of the system is insufficient
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any blockage
Syst2: User Side Antifreezing
Prot.
E271
The water flow of the system is insufficient
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the
water pump for any blockage
Water(Out) High Temp Prot.
E065
Excessively high water outlet temperature
Fan 1 Thermal Overload Prot.
E103
Fan 1 thermal overload
Check if fan 1 is running normally
Fan 2 Thermal Overload Prot.
E203
Fan 2 thermal overload
Check if fan 2 is running normally
Syst1: Exhaust Air High Temp
Prot.
P182 The system compressor is overloaded
Inspect whether the operation of System 1
compressor is normal
Syst2: Exhaust Air High Temp
Prot.
P282 The system compressor is overloaded
Inspect whether the operation of System 2
compressor is normal
Water In/Out Large Temp Diff
Prot.
E06
The water flow of the system is insufficient, the
pressure difference of the water system
is small
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any blockage
Water(Out) Low Temp Prot.
E071
Excessively low water outlet temperature
Low Water Flow Prot. E035 The system has no water or too low volume
of water
Check if the water flow of water pipe meets
the requirements and if the water pump is
damaged.
Syst1:Refrigerant Leakage
Abnormal
E131 System 1 refrigerant leakage Check if the refrigerant in the system leaks
Syst2: Refrigerant Leakage
Abnormal
E231 System 2 refrigerant leakage Check if the refrigerant in the system leaks
Syst1: 4-Way Valve Abnormal
Switch
E121 SYS1 four-way valve switching failed
Check if the four-way valve commutation
state is the desired state
Syst2: 4-Way Valve Abnormal
Switch
E221 SYS2 four-way valve switching failed
Check if the four-way valve commutation
state is the desired state
Syst1: Low Pressure Prot. 3+ E12
The low-voltage switch of the system is
disconnected
Inspect System 1 voltage switch and
refrigerating circuit for any failure
Syst2: Low Pressure Prot. 3+ E22
The low-voltage switch of the system is
disconnected
Inspect System 2 voltage switch and
refrigerating circuit for any failure
Water Flow Switch Prot. 3+ E032 The water system has no or only few water
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any damages
Electric Heater Overload Prot.
3+ E04 Electric heating overheat protection switch is disconnected
Inspect whether the electric heating is under
operation condition of over 150℃for a long
time
Syst1: User Side Antifreezing
Prot. 3+ E171 The water flow of the system is insufficient
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any blockage

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Syst2: User Side Antifreezing
Prot. 3+ E271 The water flow of the system is insufficient
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any blockage
Water(Out) High Temp Prot. 3+
E065
Excessively high water outlet temperature
Low Water Flow Prot. 3+ E035 The system has no water or too low volume of
water
Check if the water flow of water pipe meets
the requirements and if the water pump is
damaged.
Syst1: Exhaust Air High Temp
Prot. 3+
P182 The system compressor is overloaded
Inspect whether the operation of System 1
compressor is normal
Syst2: Exhaust Air High Temp
Prot. 3+
P282 The system compressor is overloaded
Inspect whether the operation of System 2
compressor is normal
Water In/Out Large Temp Diff
Prot. 3+ E06 The water flow of the system is insufficient, the pressure difference of the water system is small
Inspect whether the water flow of the water
pipe conforms to related requirements and
check the water pump for any blockage
Water(Out) Low Temp Prot.
3+
E071 Excessively low water outlet temperature
Water In Sensor Fault P01
The temperature sensor is open or short
circuited
Check and replace inlet water temperature
sensor
Water Out Sensor Fault P02
The temperature sensor is open or short
circuited
Check and replace outlet water temperature
sensor
Syst1: Coil Temp Sensor1 Fault P150
The temperature sensor is open or short
circuited
Check and replace the system 1 coil 1
temperature sensor
AT Sensor Fault P04
The temperature sensor is open or short
circuited
Check and replace the ambient temperature
sensor
Syst1: Suction Temp Sensor
Fault
P17
The temperature sensor is open or short
circuited
Check and replace the system 1 return air
temperature sensor
Syst1: User Side Antifreezing 1
Sensor Fault
P191
The temperature sensor is open or short
circuited
Check and replace the system 1 use side
antifreeze 1 temperature sensor
Syst2:Coil Temp Sensor1 Fault P250
The temperature sensor is open or short
circuited
Check and replace the system 2 coil 1
temperature sensor
Syst1: Coil(Out) Temp Sensor
Fault
P152
The temperature sensor is open or short
circuited
Check and replace the system 1 coil outlet
temperature sensor
Syst2: Coil(Out) Temp Sensor
Fault
P252
The temperature sensor is open or short
circuited
Check and replace the system 2 coil outlet
temperature sensor
Syst1: EVI(In) Temp Sensor
Fault
P101
The temperature sensor is open or short
circuited
Check and replace the system 1 EVI inlet
temperature sensor
Syst1: EVI(Out) Temp Sensor
Fault
P102
The temperature sensor is open or short
circuited
Check and replace the system 1 EVI outlet
temperature sensor
Syst1: Exhaust Air Temp Sensor
Fault
P181
The temperature sensor is open or short
circuited
Check and replace the system 1 exhaust
temperature sensor
Water Level Sensor Fault E036
Open circuit or short circuit of the water level
sensor
Inspect and replace water level sensor
Syst1: Low Pressure Sensor
Fault
PP11 The sensor is open or short circuited
Check and replace the system 1 low pressure
sensor
Syst2: Suction Temp Sensor
Fault
P27 The temperature sensor is open or short circuited
Check and replace the system 2 return air
temperature sensor
Syst2: User Side Antifreezing 1
Sensor Fault
P291 Temperature sensor fault
Check if the temperature sensor is working
properly
Syst1: High Pressure Sensor
Fault
PP12 The sensor is open or short circuited
Check and replace the system 1 high
pressure sensor
Syst2: High Pressure Sensor
Fault
PP22 The sensor is open or short circuited
Check and replace the system 2 high
pressure sensor
Syst2: Exhaust Air Temp
Sensor
Fault
P281 Open circuit or short circuit of the temperature
sensor
Inspect and replace System 2 exhaust
temperature sensor
Syst2: Low Pressure Sensor
Fault
PP21 Open circuit or short circuit of the sensor
Inspect and replace System 2 low-voltage
sensor
Water Tank Temp Fault P03
Open circuit or short circuit of the temperature
sensor
Inspect and replace water tank temperature
sensor
Syst2: EVI(In) Temp Sensor
Fault
P201
Open circuit or short circuit of the temperature
sensor
Inspect and replace System 2 enthalpy inlet
temperature sensor
Syst2: EVI(Out) Temp Sensor
Fault
P202
Open circuit or short circuit of the temperature
sensor
Inspect and replace System 2 enthalpy outlet
temperature sensor
Low AT Power-Off Prot.
TP
Excessively low environment temperature
Syst1: Coil Temp Sensor2 Fault P154 The temperature sensor is open or short circuited
Check and replace the system 1 coil 2
temperature sensor
DC Fan Board 2 Communication
Fault E082 Communication of the speed regulation module 2 with main board is abnormal
Check the speed regulation module 2 and the
main board and if their connections are
normal and reliable.
Syst2: Coil Temp Sensor2 Fault P254 The temperature sensor is open or short circuited
Check and replace the system 2 coil 2
temperature sensor
Syst1: Comp. Communication
Fault F151 Communication failure with system 1
compressor drive board
1. Check if the communication line is normal;
2. Check if the system 1 compressor drive
board is normal
Syst1: Comp. Start Fault
F152
System 1 compressor failed to start
1. Check if the compressor line is normal;

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2. Check if the system 1 compressor is
blocked
Syst1: Start IPM Prot. F153 System 1 compressor starting current is too large
1. Check if the starting high pressure is
excessive;
2. Check if the system 1 compressor is
blocked
Syst1: Running IPM Prot.
F154
System 1 compressor running current is too large
Check if the pressure ratio is too high
Syst1: Comp. Overcurrent Prot.
F156
System 1 compressor running current is too large
Check if the pressure ratio is too high
Comp. 1 IPM Over-Temp. Prot. F155
System 1 compressor drive board has poor
heat dissipation
Check if there is a gap in the installation of the
fluorine-cooled heat sink
Press 1 Bus Over Voltage Prot.
F157
Voltage is too high
Check if the input voltage is higher than 480V
Press 1 Bus Under Voltage Prot.
F158
Voltage is too low
Check if the input voltage is lower than 250V
Syst2: Comp. Communication
Fault F251 Communication failure with system 2 compressor drive board
1. Check if the communication line is normal;
2. Check if the system 2 compressor drive
board
is normal
Syst2: Comp. Start Fault F252 System 2 compressor failed to start
1. Check if the compressor line is normal;
2. Check if the system 2 compressor rotor is
locked
Syst2: Start IPM Prot. F253 System 2 compressor starting current is too
large
1. Check if the starting high pressure is
excessive;
2. Check if the system 1 compressor is
blocked
Syst2: Running IPM Prot. F254
System 2 compressor running current is too
large
Check if the pressure ratio is too high
Syst2: Comp. Overcurrent Prot. F256
System 2 compressor running current is too
large
Check if the pressure ratio is too high
Press 2 IPM Over-Temp Prot. F255 System 2 compressor drive board has poor
heat dissipation
Check if there is a gap in the installation of the
fluorine-cooled heat sink
Press 2 Bus Over Voltage Prot.
F257
Voltage is too high
Check if the input voltage is higher than 480V
Press 2 Bus Under Voltage Prot.
F258
Voltage is too low
Check if the input voltage is lower than 250V
Fan 1 Phase Loss Prot.
F101
System 1 fan failed to start
Check if the system 1 fan line is normal
Fan 1 Zero Speed Prot.
F102
System 1 fan failed to start
Check if the system 1 fan rotor is locked
Fan 1 Start IPM Prot.
F103
System 1 fan starting current is too large
Check if the system 1 fan rotor is locked
Fan 1 Running IPM Prot.
F104
System 1 fan running current is too large
Check if the system 1 fan rotor is locked
Fan 1 Overcurrent Prot.
F105
System 1 fan running current is too large
Check if the system 1 fan rotor is locked
Fan 1 Over-Temp Prot. F106
System 1 fan drive board has poor heat
dissipation
Check the heat dissipation condition
Fan 1 Bus Over Voltage Prot.
F107
Voltage is too high
Check if the input voltage is higher than 480V
Fan 1 Bus Under Voltage Prot.
F108
Voltage is too low
Check if the input voltage is lower than 250V
Fan 2 Output Phase Loss Prot.
F201
System 2 fan failed to start
Check if the system 2 fan line is normal
Fan 2 Output Zero Speed Prot.
F202
System 2 fan failed to start
Check if the system 2 fan rotor is locked
Fan 2 Start IPM Prot.
F203
System 2 fan starting current is too large
Check if the system 2 fan rotor is locked
Fan 2 Running IPM Prot.
F204
System 2 fan running current is too large
Check if the system 2 fan rotor is locked
Fan 2 Overcurrent Prot.
F205
System 2 fan running current is too large
Check if the system 2 fan rotor is locked
Fan 2 Over-Temp Prot. F206
System 2 fan drive board has poor heat
dissipation
Check the heat dissipation condition
Fan 2 Bus Over Voltage Prot.
F207
Voltage is too high
Check if the input voltage is higher than 480V
Fan 2 Bus Under Voltage Prot.
F208
Voltage is too low
Check if the input voltage is lower than 250V
Abnormal Power Fault
EE1
Syst1: High Suction Temp Prot. E077 SYS1 return air temperature is too high
Check if the return air temperature sensor is
normal
Syst2: High Suction Temp Prot. E078 SYS2 return air temperature is too high
Check if the return air temperature value is
greater than the protection value
Syst1: High Suction Temp Prot.
3+
E077 SYS1 return air temperature is too high
Check if the return air temperature sensor is
normal
Syst2: High Suction Temp Prot.
3+
E078 SYS2 return air temperature is too high
Check if the return air temperature value is
greater than the protection value

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Page 15
7. Appendix
7.1 Wiring Diagram

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No. Sign Meaning No. Sign Meaning
1
AI/DI1
Water inlet temperature
55
AI 55(50K)
No use
2
AI/DI2
Water outlet temperature
56
0-5V_IN1
System 1 low pressure sensor
3 AI/DI3 System 1 antifreeze temperature 57 AI/0-5V_IN2 System 2 low pressure sensor
4
AI/DI4
System 1 coil temperature 1
58
0-5V_IN3
System 1 high pressure sensor
5
AI/DI5
System 1 coil temperature 2
59
0-5V_IN4
System 2 high pressure sensor
6 AI/DI6 System 2 antifreeze temperature 60 0-5V_IN5 No use
7
AI/DI7
Ambient temperature
61
0-5V_IN6
No use
8
AI/DI8
System 1 coil outlet temperature
62
0-5V_IN7
No use
9
AI/DI9
System 1 return air temperature
63
0-5V_IN8
No use
10
AI/DI10
System 2 coil outlet temperature
64
PWM_IN1
Flow meter
11
AI/DI11
System 2 return air temperature
65
PWM_IN2
No use
12
AI/DI12
System 1 EVI inlet temperature
66
PWM_OUT1
No use
13
AI/DI13
System 1 EVI outlet temperature
67
PWM_OUT2
No use
14
AI/DI14
System 2 EVI inlet temperature
68
0-10V_OUT1
No use
15
AI/DI15
System 2 EVI outlet temperature
69
0-10V_OUT2
No use
16 AI/DI16 Water tank temperature 70 +5V No use
17
AI/DI17
End return water temperature
71
+12V
12V output
18
AI/DI18
System 2 coil temperature 1
72
JP13_1
Wire controlled color display
19 AI/DI19 System 2 coil temperature 2 73 JP13_2 Centrally controlled color display
20
AI/DI20
No use
74
JP13_3
(Reserved)
21
AI/DI21
No use
75
CN1
System 1 electronic expansion valve (big)
22 AI/DI22 No use 76 CN2 System 2 electronic expansion valve (big)
23
AI/DI23
No use
77
CN3
System 1 electronic expansion valve (small)
24
AI/DI24
No use
78
CN4
System 2 electronic expansion valve (small)
25
AI/DI25
No use
79
CN5
System 1 EVI electronic expansion valve
26
AI/DI26
No use
80
CN6
System 2 EVI electronic expansion valve
27
AI/DI27
No use
81
CN7
No use
28
AI/DI28
No use
82
CN8
No use
29
AI/DI29
No use
83
RO01
System 1 fan output (low speed)
30
AI/DI30
No use
84
RO02
System 1 fan output (high speed)
31
AI/DI31
No use
85
RO03
System 2 fan output (low speed)
32
AI/DI31
No use
86
RO04
System 2 fan output (high speed)
33
AI/DI33
No use
87
RO05
System 1 four-way valve output
34
AI/DI34
No use
88
RO06
System 2 four-way valve output
35 AI/DI35 No use 89 RO07 System 1 crankshaft heating belt output
36
AI/DI36
No use
90
RO08
System 2 crankshaft heating belt output
37
AI/DI37
System 1 low pressure switch
91
RO09
System 1 spray valve output (No use)
38 AI/DI38 System 2 low pressure switch 92 RO10 System 2 spray valve output (No use)
39
AI/DI39
System 1 high pressure switch
93
RO11
Water replenishing valve (reserved)
40
AI/DI40
System 2 high pressure switch
94
RO12
Backwater valve (reserved)
41
AI/DI41
No use
95
RO13
Water supply pump (reserved)
42
AI/DI42
No use
96
RO14
Electric heating
43
AI/DI43
Water flow switch
97
RO15
Circulating water pump output
44
AI/DI44
Electric heating overload protection switch
98
RO16
Alarm output
45
AI/DI45
Emergency switch
99
RO17
System 1 fan output (high speed)
46
AI/DI46
Mode switch
100
RO18
System 2 fan output (high speed)
47
AI/DI47
Fan 1 overload protection switch
101
RO19
Chassis Heater
48
AI/DI48
Fan 2 overload protection switch
102
RO20
No use
49
AI/DI49
No use
103
RO21A
No use
50
AI 50(50K)
System 1 exhaust temperature
104
RO21B
No use
51 AI 51(50K) System 2 exhaust temperature 105 RO22A No use
52
AI 52(50K)
No use
106
RO22B
No use
53
AI 53(50K)
No use
107
RO23
No use
54 AI 54(50K) No use 108 RO24 No use

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7.2 Cable Specifications
Nameplate maximum
current
Phase line
(Single Phase)
Phase Line
(Three Phase)
Earth line MCB
Creepage
Protector
Signal
Line
No more than 10A 2 x 1.5mm23 x 1.5mm21.5mm220A
30mA less
than 0.1 sec
n x
0.5mm2
10~16A 2 x 2.5mm23 x 2.5mm22.5mm232A
16~25A 2 x 4mm23 x 4mm24mm240A
25~32A 2 x 6mm23 x 6mm26mm240A
32~40A 2 x 10mm23 x 10mm210mm263A
40~63A 2 x 16mm23 x 16mm216mm280A
63~75A 2 x 25mm23 x 25mm225mm2100A
75~101A
2 x 25mm
2
3 x 25mm
2
25mm
2
125A
101~123A 2 x 35mm23 x 35mm235mm2160A
123~148A 2 x 50mm23 x 50mm250mm2225A
148~186A 2 x 70mm23 x 70mm270mm2250A
186~224A 2 x 95mm23 x 95mm295mm2280A

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Page 18
8. Maintenance
8.1 F.A.Q
DO I NEED TO GET MY UNIT
SERVICED?
It is recommended that you get your EvoHeat unit serviced once a year by
your local certified air conditioning or refrigeration technician. If your unit is
located in a coastal area, more frequent maintenance may be necessary.
During the service, they will check the operational pressures of the
refrigeration system and give the unit and fins a good clean to ensure
maximum performance.
DO WE HAVE RECOMMENDED
SERVICE AGENTS?
EvoHeat have a large database of recommended service agents. Please
contact EvoHeat tech support on 1300 859 933 for your local service agent
details.
SHOULD I CHECK MY UNIT
REGULARLY?
We recommend you check your unit regularly to avoid potential issues and
damage to your heat pump.
WHAT SHOULD I BE CHECKING
REGULARLY?
Check the water inlet/outlets often for leaks. You should avoid the condition
of no water or air entering into the system, as this will influence unit’s
performance and reliability.
The area around the unit should be dry, clean and well ventilated. Make sure
there is nothing blocking the airflow of the heater e.g. Leaf litter. Clean the
heat exchanger every few months to keep a good heat exchange rate and
save energy.
You should discharge the water at the bottom of the water pump if the unit
will not be used for an extended period. Discharge all water in the water
pump and water system so that freezing of the water in the pump or water
system does not occur. Check the unit thoroughly and fill the system with
water fully before using it for the first time after a period of time.
Check the power supply and cable connection often, should the unit begin to
operate abnormally, switch it off and contact the qualified technician
Clean the water filter periodically to maintain good water quality. Lack of
water and dirty water can damage the unit. The heat pump will start the water
every 72 hours when it is not running to avoid freezing.
The water loop of the heat pump MUST be protected from freezing in winter.
Do not shut off the power supply to the heat pump in winter. When the air
temperature is below 0°C, if the inlet water temperature is above 2°C and
below 4°C the water pump will begin freezing protection. If the inlet water is
lower than 2°C, the heat pump will begin heating.

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9. Warranty
Refer to the EvoHeat website for warranty details
•Australia: https://evoheat.com.au/warranty-terms/
•South East Asia: http://evoheat.com.sg/warranty/
1. Warranty terms are from date of purchase.
2. This warranty excludes any defect or injury caused by or resulting from misuse, abuse, neglect, accidental
damage, improper voltage, vermin infestation, incompetent installation, any fault not attributable to faulty
manufacture or parts, any modifications which affect the reliability or performance of the unit.
3. This warranty does not cover the following:
a. Natural Disasters (hail, lightening, flood, fire etc.)
b. Rust or damage to paintwork caused by a corrosive atmosphere
c. When serviced by an unauthorized person without the permission of Evo Industries
d. When a unit is installed by an unqualified person
e. Where a unit is incorrectly installed
f. When failure occurs due to improper or faulty installation
g. Failure due to improper maintenance (refer Operating Instructions)
h. ‘No Fault Found’ service calls where the perceived problem is explained within the
i. Costs associated with delivery, handling, freighting, or damage to the product in transit.
4. If warranty service is required, you should:
a. contact Evo Industries Australia on 1300 859 933 or via our Contact page on our web site
b. provide a copy of your receipt as proof of purchase
c. have completed the online Warranty Registration Form
5. Onsite technical service is available within the normal operating area of your Evo Authorised Service Agents.
Service outside this area will incur a traveling fee.
6. Unless otherwise specified to the purchaser, the benefits conferred by this express warranty and additional to all
other conditions, warranties, rights and remedies expressed or implied by the Trade Practices Act 1974 and
similar consumer protection provisions contained in legislation of the States and Territories and all other
obligations and liabilities on the part of the manufacturer or supplier and nothing contained herein shall restrict or
modify such rights, remedies, obligations or liabilities.
EvoHeat highly recommend customers complete their warranty details online to
ensure efficient warranty claim processing.
To register your warranty, scan our QR Code or head to our website and fill in
the Warranty Registration Form: https://evoheat.com.au/warranty-registration/
REGISTER YOUR WARRANTY