evoheat Evo Flex User manual

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Evo Flex Series Manual
Page 1
Contents
1. Introduction...............................................................................................................................................2
2. Dimensions...............................................................................................................................................3
3. Safety Instructions ....................................................................................................................................4
4. Installation ................................................................................................................................................5
4.1 Transit.................................................................................................................................................5
4.2 Location of Install ................................................................................................................................5
4.3 Minimum Clearances ..........................................................................................................................5
4.4 Plumbing.............................................................................................................................................5
4.5 Electrical Connection ..........................................................................................................................5
4.6 Initial Start-up......................................................................................................................................6
5. Operation..................................................................................................................................................7
5.1 The Controller .....................................................................................................................................7
5.2 Operating Functions............................................................................................................................7
5.2.1 Start-up & Shutdown.....................................................................................................................7
5.2.2 Mode Switch .................................................................................................................................7
5.2.3 Setting the Target Temperature ....................................................................................................7
5.2.4 Fast Heating Mode .......................................................................................................................8
5.2.5 Setting a Timer .............................................................................................................................8
5.2.6 Setup Interface .............................................................................................................................8
5.2.7 Setting the Date & Time................................................................................................................8
5.2.8 Fault Interface...............................................................................................................................8
5.2.9 Colour Display Calibration ............................................................................................................8
6. Troubleshooting........................................................................................................................................9
6.1 Electronic Control Fault Table .............................................................................................................9
6.2 Frequency Conversion Board Fault Table .........................................................................................10
6.3 Troubleshooting Table ......................................................................................................................11
7. Appendix ................................................................................................................................................12
7.1 Parameter List...................................................................................................................................12
7.2 Install Sketch Map.............................................................................................................................12
7.3 Automatic Filled Water Valve ............................................................................................................12
7.4 Leakage Pressure Valve ...................................................................................................................12
7.5 Assistant Heat Source Connection....................................................................................................13
7.6 Cable Specifications..........................................................................................................................13
7.7 Controller Interface Diagram .............................................................................................................14
8. Maintenance...........................................................................................................................................15
9. Warranty.................................................................................................................................................16

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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.
The Evo Flex Series heat pumps utilise advanced heat pump technology to
achieve high efficiency with a C.O.P. of up to 4.8. With the application of DC
inverter technology, the Evo Flex Series can adjust the output capacity
automatically and control the room temperature accurately.
TECHNICAL DATA Evo Flex 10 Evo Flex 17 Evo Flex 25
Heating Capacity Range kW 2.5-10.8 5.0-17.3 7.0-25.1
Heating Power Input Range kW 0.8-2.77 1.2-4.55 2.5-6.54
Cooling Capacity Range kW 2.0-10.0 5.0-14.5 7.0-20.0
Cooling Power Input Range kW 1.0~3.4 1.6~5.6 2.5~9.0
Frequency Hz 30~90 30~90 30~90
ErP Level (35˚C) / A++ A++ A++
ErP Level (55˚C) / A+ A+ A+
Power Supply / 220-240/1/50 220-240/1/50 380-415/3/50
Electric Heater kW 3.0 / /
Max. Running Current A 18+13.7 27 14
Refrigerant Type / R410A R410A R410A
Refrigerant Quantity kg 2.4 3.2 4.4
Water Connection / 1” 1 ¼” 1 ¼”
Water Flow m3h 1.6 2.8 4.2
Water Pressure Drop kPa 22 52 45
Water Pump Head M 10 17 18
DC Fan Motor Quantity / 1 2 2
DC Motor Power Input (MIN-MAX) W 18-136 36-272 50-340
DC Fan Speed (MIN-MAX) rpm 300-850 300-850 300-900
Pressure Sensor 1 Bar 0~20 0~20 0~20
Pressure Sensor 2 Bar 0~45 0~45 0~45
Noise dB(A) 54 58 62
Net Weight kg 110 163 219
Net Dimensions (LxWxH) mm 980 x 465 x 910 990 x 437 x 1315 1175 x 450 x 1588
Operation Ambient Temp. ˚C -20~52 -20~52 -20~52

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Page 3
2. Dimensions
Evo Flex
A (L)
B (W)
C (H)
D
E
F
G
10
980
465
910
700
445
338
132
Evo Flex
A (L)
B (W)
C (H)
D
E
F
G
H
17
990 437 1315 650 525 395 330 133
Evo Flex
A (L)
B (W)
C (H)
D
E
F
G
25
1175 450 1588 725 400 320 254

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Page 4
3. Safety Instructions
• Installation, repairs and maintenance of this unit must be performed by a qualified technician.
• Any wiring must comply with local electrical regulations.
• If any abnormal instances occur or a strange smells, the unit must be shut off by the power supply.
• Do not put fingers or objects into the fans or evaporator of the unit.
• The unit must be earthed to avoid any risk caused by insulation defects.
• No wiring must come into contact with the heat source or the rotating fan parts.
• The unit must be handled and lifted with appropriate equipment in correlation with the unit’s size and
weight.
• Electrical power must be switched off before any work is started on the unit.
• Do not expose the unit to or install near any flammable gases.
• Ensure there is a circuit breaker for this unit.
• Copper and iron can not be used as a fuse.
• The unit is equipped with an over-load protection system. After a previous stoppage, the unit will not
start for at least 3 minutes.
• 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.
• USE SUPPLY WIRES SUITABLE FOR 75℃.
• Caution: Single wall heat exchanger, not suitable for potable water connection.

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4. Installation
4.1 Transit
When transporting the unit, ensure the unit is kept standing upright. Laying the unit down may damage internal parts.
If the unit needs to be hung up (such as for lifting with a crane) use an 8 metre cable. Ensure there is some kind of
padding between the cable and the unit to prevent damage to the heat pump cabinet.
4.2 Location of Install
The unit can be installed in any outdoor area which can carry the weight of heavy machinery, such as a terrace,
rooftop, the ground etc.
• The location must have adequate ventilation and be free from strong winds.
• The installation location must be free from heat radiation and fire hazards.
• Ensure there are no obstacles near the air inlet and outlet of the heat pump.
• There must be a water channel around the heat pump to drain condensing water.
• Ensure that there is enough space around the unit for maintenance.
• The heat pump can be installed onto the concrete basement using expansion screws, or onto a steel frame
with rubber feet which can be placed on the ground or rooftop. Ensure the unit is placed horizontally.
4.3 Minimum Clearances
A: 500mm
B: 1500mm
C: 1000mm
D: 500mm
4.4 Plumbing
•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.
•There must be drainage on the low points of the water system, and there is already drainage on the chassis of the
heat pump. The water in the system must be drained out during winter if the heat pump is not to be used.
4.5 Electrical Connection
•Open the panel and open the power line hole
•Thread the power line though the hole and connect it to the power line terminal. The three-core control line of the
remote controller shall be plugged with the three-core signal line on the main board according to the wiring
diagram.
•For an external water pump, thread the power line of the water pump through the hole and connect it to the water
pump terminals.
•If an additional auxiliary heater is needed to be to be controlled by the heat pump controller, the relay (or power) of
the aux-heather must be connected to the relevant output of the controller.

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4.6 Initial Start-up
Prior To:
Check the indoor unit, make sure that the pipe connection is done correctly and that the relevant valves are open.
Check the water loop to ensure that there is enough water inside of the expansion tank, that the water supply is good
and that the water loop has no air in it and is full of water. Make sure there in 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 the earthing is connected.
Check that the heat pump, including all the screws and different parts are in good order. When the power is on, review
the indicator on the controller to see if there is any failure indications. 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 Operation:
Start the heat pump and check whether the water pump is running, if it is running normally there will be 0.2MPa on the
water pressure meter.
When the water pump runs for 1 minute, the compressor will start. Hear whether there is a strange sound coming 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 the unit and check for why
this may be occurring.
Adjust the valves on the water loop to make sure that the hot (cool) water supply to each door is good and meets the
requirement of heating (or cooling).
Review whether the outlet water temperature is stable.

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5. Operation
5.1 The Controller
ON/OFF Turn the unit on or off. When the unit
is on, the button will be red.
MODE Switch modes
TEMP.
SETTING Enter the temperature setting menu.
FAST
HEATING Press this to begin rapid heating.
TIMER Set a unit on/off timer. When a timer is
on, this icon will be green.
SETUP
Check the unit status, time, factory
parameters, temp. curve, timer &
mute settings.
FAULT DEFROSTING HOT WATER MODE HEATING MODE
When an error occurs this
icon will flash at the top right
of the screen. Tap the icon to
see a record of failures.
When this icon is shown the
unit is in defrosting mode.
When this icon is shown the
unit is in hot water mode.
When this icon is shown the
unit is in heating mode.
5.2 Operating Functions
5.2.1 Start-up & Shutdown
To turn the unit on or off, press ON/OFF button.
The icon will be grey when the unit is off, and green when it is on.
5.2.2 Mode Switch
From the main menu there are five different operating modes that can be
chosen from. Press MODE to select from the options:
Hot Water, Heating, Cooling, Hot Water & Heating or Hot Water &
Cooling
Note: If you have purchased a heating-only model (with no cooling functions)
“cooling” mode will not appear.
5.2.3 Setting the Target Temperature
Press the TEMP. SETTING button to change the set temperature
values of heating and/or cooling mode.
Press the temperature value to alter the value, then press ‘Enter’ to save
and return to the main menu.

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5.2.4 Fast Heating Mode
While the unit is in heating mode, press the FAST HEATING button
to enable the rapid heating function.
5.2.5 Setting a Timer
You can set a customised start-up and shutdown timer for your unit.
Press the TIMER button on the main menu and enter your desired
‘ON’ & ‘OFF’ times.
Press the On/Off button to the left of each time to toggle the start/end
timers. When they are not on the button will be grey instead of coloured.
Example: The unit will turn on at 17:10 and shut down at 20:10.
5.2.6 Setup Interface
STATUS Press this to view the status interface.
CLOCK View/change system time & date settings.
MUTE Turn on/off the silent function OR set mute timing intervals
FACTORY Enter the factory interface.
CURVE View the temperature curves.
5.2.7 Setting the Date & Time
From the Setup interface, press CLOCK to enter into the system date &
time setting menu. Use the arrows to adjust the date & time as required,
then press the enter button to save changes.
Press the return key to return to the previous menu or to cancel any
changes.
5.2.8 Fault Interface
Press the FAULT icon on the main menu to display a record of all
failures that have occurred.
After faults have been reviewed and corrected, press the top right ‘Clear’
button to wipe the records.
Note: when clearing the fault records, it may ask for a password first. The
password will be the
first 2 numbers of the top fault. In this example, the password would be 12.
5.2.9 Colour Display Calibration
Keep clicking quickly at the blank area on any interface till you hear a long beep. You will then enter the calibration
interface. Click "+" to start calibration. When you hear the beep again, you will have finished calibration and can exit.

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6. Troubleshooting
6.1 Electronic Control Fault Table
Protect/Fault Error
Code Cause Solution
Inlet Temp. Sensor Fault P01 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Outlet Temp. Sensor Fault P02 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Water Tank Temp Sensor P03 The temp. sensor is broken or short
circuited Check or change the temp. sensor
At Sensor Fault P04 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Suction Temp. Sensor Fault P17 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Coil Temp Sensor P153 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Exhaust Temp Sensor P181 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Exhaust Overtemp P182 The temp. sensor is broken or short
circuited Check or change the temp. sensor
Suction Pressure Sensor
Fault PP2 The pressure sensor is broken Check or change the pressure sensor or
pressure
Exhaust Pressure Sensor
Fault PP1 The pressure sensor is broken Check or change the pressure sensor or
pressure
Low AT Protection
TP
The environment temp. is low
Electric Overheat Protection E04 The compressor is overloaded Check whether the system of the
compressor is running normally
Communication Fault E08 Communication failure between wire
controller and mainboard
Check the wire connection between
remote
wire controller and main board
HP Protection E11 The high-pressure switch is
broken
Check the pressure switch and cold
circuit
LP Protection E12 Low pressure1 protection Check the pressure switch and cold
circuit
Primary Anti-Freezing Prot.
E19
The ambient temp. is low
Secondary Anti-Freezing Prot. E29 The ambient temp. is low
Flow Switch Protection E032 No water/little water in water system Check the pipe water flow and water
pump
Compressor Overcurrent
Shutdown Fault E051 The compressor is overloaded Check whether the system of the compressor is running normally
Anti-Freezing Prot E171 Water flow is not enough Check the pipe water flow and whether
water system is jammed
DC Fan Motor 1 Failure F031
1. Motor is in locked-rotor state
2. The wire connection between DC-fan
motor module and fan motor is in bad
contact
1. Change a new fan motor
2. Check the wire connection and make
sure they are in good contact
DC Fan Motor 2 Failure F032
1. Motor is in locked-rotor state
2. The wire connection between DC-fan
motor module and fan motor is in bad
contact
1. Change a new fan motor
2. Check the wire connection and make
sure they are in good contact
Dc Fan Motor Comms Failure E081 Speed control module and main
board communication fail Check the communication connection

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6.2 Frequency Conversion Board Fault Table
Protect/Fault Error
Code Cause Solution
IPM Overcurrent Shutdown Fault F00 IPM Input current is large Check and adjust the current
measurement
Compressor Activation Failure F01 Lack of phase, step or drive hardware
damage
Check the measuring voltage, check
frequency conversion board hardware
PFC Fault F03 The PFC circuit protection Check the PFC switch tube short circuit
or not
DC Bus Overload F05 DC bus voltage<Dc bus Overload –
voltage protection value Check the input voltage measurement
DC Bus Underload F06 DC bus voltage<Dc bus underload –
voltage protection value Check the input voltage measurement
AC Input Underload F07 The input voltage is under, causing the
input current to be too low Check the input voltage measurement
AC Input Overload F08 The input voltage is over, causing the
input current to be too high
Check and adjust the current
measurement
Input Voltage Sample Fault F09 The input voltage sampling fault Check and adjust the current
measurement
Communication Failure between
DSP and PFC F10 DSP and PFC connect fault Check the communication connection
Communication Fault (DSP) F11 DSP and Inverter board communication
failure Check the communication connection
Communication Fault (Inverter
Board) F12 Communication failure between inverter
board and main board
Check the wire connection between
remote inverter board and main board
IPM Overheat Stop F13 The IPM module has overheated
Check and adjust the current
measurement
Weak Magnetism Alarm F14 Compressor magnetic force is not
enough
Input Voltage Lacking Phase F15 The input voltage lost phase Check and measure the voltage
adjustment
IPM Current Sample Fault F16 IPM Sampling electricity is fault Check and adjust the current
measurement
Sensor Fault of Module/Radiator F17 The transducer is overheating Check and adjust the current
measurement
IGBT Power Device Overhear
Alarm F20 The transducer is overheating Check and adjust the current measurement
Overload Alarm F21 The compressor input current is too
large
Check and adjust the current
measurement
AC Input OverCurrent Alarm F22 Input current is too large Check and adjust the current
measurement
EEPROM Fault Alarm F23 MCU Error
Destroyed EEPROM Activation
Ban Alarm F24 MCU Error
LP 15V Underload Fault F25 The V15V is overload or undervoltage Check the V15V input voltage in range
13.5V~16.5 or not
IGBT Power Device Overheat
Fault F26 Transducer temperature is too high Check and adjust the current measurement

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6.3 Troubleshooting Table
Failure
Possible Causes for the Failure
Solutions
Heat pump cannot be started
Wrong power supply Shut off the power and check power supply
Power supply cable loose Check power cable and make right
connection
Circuit breaker open Check for the cause and replace the fuse or
circuit breaker
Water pump is running with
high noise or without heater
Lack of water in the piping Check the water supply and charge water to the
piping
Too much air in the water loop Discharge the air in the water loop
Water valves closed Open the valves in the water loop
Dirt and blockage on the water filter Clean the water filter
Heat pump capacity is low,
compressor does not stop
Lack of refrigerant Check for the gas leakage and recharge the
refrigerant
Bad insulation on water pipe Make good insulation on water pipe
Low heat exchange rate on air side
exchanger Clean the air side heat exchanger
Lack of water flow Clean the water filter
High compressor exhaust
Too much refrigerant Discharge the redundant gas
Low heat exchange rate on air side
exchanger Clean the air side heat exchanger
Low pressure problem of the
system
Lack of gas Check the gas leakage and recharge freon
Block on filter or capillary
Replace filter or capillary
Lack of water flow
Clean the water filter and discharge the air in
water loop
Compressor do not run
Power supply failure Check off the power supply
Compressor contactor broken Replace compressor contractor
Power cable loose Tighten the power cable
Protection on compressor Check the compressor exhaust temp
Wrong setting on return water temp Reset the return water temp
Lack of water flow Clean the water filter and discharge the air in
water loop
High noise of compressor
Liquid refrigerant goes into compressor Bad evaporation, check the cause for bad
evaporation and fix
Compressor failure Use new compressor
Fan do not run
Failure on fan relay Replace the fan relay
Fan motor broken Replace fan motor
The compressor runs but heat
pump has no heating or
cooling capacity
No gas in the heat pump Check system leakage and recharge
refrigerant
Heat exchanger broken Find out the cause and replace the heat
exchanger
Compressor failure Replace compressor
Low outlet water temperature Low water flow rate Clean the water filter and discharge the air in
water loop
Low setting for the desired water temp Reset the desired water temperature
Low water flow protection Lack of water in the system
Clean the water filter and discharge the air in
water loop
Failure on flow switch
Replace the flow switch

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7. Appendix
7.1 Parameter List
Meaning Default Remarks
Refrigeration target temperature set point 12°C Adjustable
Heating the target temperature set point 40°C Adjustable
7.2 Install Sketch Map
Special Installation (Expandable Water Tank)
1. Main Unit 9. Vent Valve
2. Connecting Hose 10. Automatic Refill
Valve
3. Pressure Meter
11. Pressure
Differential Bypass
Valve
4. General Valve 12. Drain Valve
5. Three-way Valve 13. Non-return Valve
6. Y-type Filter 14. Water Pump
7. Safety Valve 15. Fan Coil
8. Expansion Tank
7.3 Automatic Filled Water Valve
When the automatic filled-water valve is installed, the arrowhead orientation of inlet
water must accord with the orientation of the valve.
Automatic filled-water has been adjusted in advance to 1.5ba.
If readjusting the pressure of inlet water, please operate as follows:
• Open the Screw Cap ( C )
• If reducing the pressure of water supply, unscrew the pressure to adjust the
screw (B)
• If increasing the pressure of water supply, screw down the pressure to
adjust the screw (B)
When the system needs to be filled with water at first, rest the handle (A) of filled-
water. Then the handle (A) can return (close) when the system is full of water.
Automatic filled-water valve needs periodic cleaning. When you must close the tap, unscrew the plug (D), remove the
inside filter net. Reassemble after cleaning.
NOTE: There are two connections for water pressure meters in the central section of automatic filled-water, where the
water pressure meter can be connected directly and display the set pressure. The screw cap ( C ) must be tweaked
after adjusting the filled-water pressure.
7.4 Leakage Pressure Valve
The action pressure of the leakage pressure valve is more than 3bar (valve is
open), but the pressure cannot be adjusted.
The valve will open automatically to make sure that the water loop of air-con
system is safe when the water pressure in the backwater side is higher than the
set pressure.
B
C
1/4'
D
A
1/2'
ou tle t
in le t

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7.5 Assistant Heat Source Connection
Unit provides the connection of assistant heat-source, which can be not only be for a gas fired boiler, but also for an
electronic boiler or warm-net pipe for city accordingly.
Water Chiller & Heat Pump
+ Assistant Gas-Fired Boiler
Water Chiller & Heat Pump
+ Assistant Electronic Boiler
7.6 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 4mm
2
3 x 4mm
2
4mm
2
40A
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 25mm23 x 25mm225mm2125A
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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7.7 Controller Interface Diagram
No.
Sign
Meaning
01 RO 01
Compressor (output 220-
230VAC)
02 RO 02
Water Pump (output 220-
230VAC)
03 RO 03
4-way valve (output 220-
230VAC)
04
RO 04
Fan (output 220-230VAC)
05
RO 05
Reserved
06 RO 06
Anti-freezing heater (output
220-230VAC)
07 RO 07
Crankshaft Heater (output 220-
230VAC)
08 RO 08
Spray Valve (output 220-
230VAC)
09 RO 09
Electric Auxiliary Heater (output
220-230VAC)
10
RO 10
Reserved
12
RO 11
Alarm (output 220-230VAC)
12
RO 12
Hot Water Pump
13 RO 13
Electromagnetic three-way
valve
14
RO 14~RO18
Reserved
15
AC-L
Live Wire (output 220-230VAC)
16 AC-N
Neutral Wire (output 220-
230VAC)
17
AI01
Water Inlet Temperature (input)
18 AI02
Water output temperature
(input)
19 AI03
System exhaust temperature
(input)
20
AI04
Reserved
21 AI05
System suction temperature
(input)
22
AI06
System coil temperature (input)
23
AI07
Ambient temperature (input)
24
AI08
Water tank temperature (input)
25
AI09-AI20
Reserved
26
AI21
Suction pressure input
27
AI22
Exhaust pressure input
28
DI01
System high pressure (input)
29
DI02
System low pressure (input)
30
DI03
Water flow switch (input)
31
DI04
Emergency switch (input)
32
DI05
Mode switch (input)
33 DI06
Master-slave machine switch
(input)
34 DI07
Electric heating overload
protection switch (input)
35 485_A1
Frequency Conversion Board
Communications
36 485_B1
Frequency Conversion Board
Communications
37 485_A2
Communicate with wire
controller and DC fan module
38 485_B2
Communicate with wire
controller and DC fan module
39
485_A3
Reserved
40
485_B3
Reserved
41
12V
12V (output)
42
5V
5V (output)
43
CN1
Electronic expansion valve
44
CN2-CN4
Reserved

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8. Maintenance
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.

[e-mail]
1300 859 933
www.evoheat.com.au
Evo Flex Series Manual
Page 16
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