evoheat Evo270-1 User manual

1
Evo270 Hot Water Heat Pump Manual
Contents
1. Introduction _________________________________________________________________________________ 2
2. Quick Start Guide _____________________________________________________________________________ 3
3. Unit Specifications ____________________________________________________________________________ 4
3.1 Dimensions & Technical Data ________________________________________________________________ 4
4. Safety Instructions ____________________________________________________________________________ 5
5. Installation __________________________________________________________________________________ 5
5.1 Pipeline Connection ________________________________________________________________________ 5
5.2 Handling & Transportation __________________________________________________________________ 6
5.3 Location of Install & Minimum Clearances ______________________________________________________ 6
5.4 Cable Connection __________________________________________________________________________ 7
5.5 Filling the Tank ____________________________________________________________________________ 7
5.6 Initial Start-up of the Unit ___________________________________________________________________ 7
6. Operation ___________________________________________________________________________________ 8
6.1 Main Controller Interface ___________________________________________________________________ 8
6.2 Functions of the Controller __________________________________________________________________ 9
6.2.1 Turning the Unit ON & OFF _______________________________________________________________ 9
6.2.2 Mode Selection ________________________________________________________________________ 9
6.2.3 Target Temperature Checking & Setting____________________________________________________10
6.2.4 Hydro Boost Setting ___________________________________________________________________ 10
6.2.5 Setting the Time and Date ______________________________________________________________11
6.2.6 Setting the Timer______________________________________________________________________12
6.2.7 Cancelling the Timer ___________________________________________________________________ 13
6.2.8 Vacation Mode _______________________________________________________________________13
6.2.9 Keyboard Locking _____________________________________________________________________14
6.2.10 Force Defrosting _____________________________________________________________________14
6.2.11 Fan/Ventilation Function ______________________________________________________________14
7. Troubleshooting_____________________________________________________________________________15
8. Appendix __________________________________________________________________________________ 16
8.1 PCB Description __________________________________________________________________________16
8.2 Caution_________________________________________________________________________________17
8.3 Earthing Methodology _____________________________________________________________________ 17
8.4 Use of the P&T Valve ______________________________________________________________________ 18
8.5 Using the Overheating Protector_____________________________________________________________18
8.6 Draining the Water Tank ___________________________________________________________________ 18
9. Maintenance _______________________________________________________________________________19
10. Warranty _________________________________________________________________________________20

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Evo270 Hot Water Heat Pump Manual
1. Introduction
This manual contains all the necessary information regarding the installation,
troubleshooting, operation and maintenance of this unit. Ensure instructions in this
manual are always adhered to. Failing to comply with these recommendations will
invalidate the warranty. This manual and all others are available for download on our
website.
HEATING CAPACITY
In low ambient conditions the heating output decreases.
WORKING CONDITIONS
In order to use the unit correctly, run the unit at environment temperature 0°C 40°C
The unit contains sophisticated electronic devices, do not use water from a lake,
groundwater or other unsafe water sources.
3 MIN SAFETY PROTECT
If the unit stops and you restart the unit or turn it on manually, the unit will not start to run again for approximately
3 minutes. This is a protection feature to safe guard the compressor.
WATER TEMPERATURE OR PRESSURE PROTECTION
A P&T valve MUST be installed in the tank. When the tank pressure reaches 0.85MPa or when the tank temperature
reaches 99°C, the P&T valve will open automatically so as to reduce the pressure or temperature decrease.
DEFROSTING
In heating mode the unit will defrost automatically, maximising the heating efficiency (lasting 2-10 minutes). The fan
motor will stop running whilst the unit is defrosting.
•When installing the Evo 270, follow all instructions as documented in this manual.
•Once the installation is complete, check that all connections are secure before the power is turned on.
•The installer is to explain to the end user how to operate and maintain the unit in accordance with this
instruction manual.
•Evo Industries Australia Pty Ltd will not be held responsible for any damages or injuries caused by the incorrect
installation of this hot water system.
•A maintenance programme must be carried out as recommended in this manual to ensure ongoing reliability.
•Failure to comply with these recommendations could void the warranty and cause injury or death.
•Due to continuous product improvement, this manual may be subject to change without prior notice.
Recommended Household Size
The below recommendations are based on heat pump only mode. Higher occupancy levels can be achieved with the
Hydroboost heater function activated.
Household Size
Model
Up to 6 People
Evo270-1
Notice: High usage of hot water and other factors could affect this recommendation. Please consult your supplier if you have
special requirements.

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Evo270 Hot Water Heat Pump Manual
2. Quick Start Guide
INITIAL SET UP
1. Press and hold for one second to power on the unit.
2. To set the time:
a. Press once so the hour digit starts flashing,
b. Use to adjust the hour and press to confirm,
c. Repeat for the minute, day, month and year,
d. Press at any stage to cancel.
3. Press until is displayed. This will activate “Eco Heating” (Heat Pump only) mode and will
provide the most efficient heating.
4. During periods of unusually high hot water demand (such as additional occupants staying with you),
you can activate “High Requirement” modeby pressing until is displayed.
5. In any event where there is a failure within the system, the Electric Element (Hydroboost Mode) can
be engaged with “one push activation” of the button until is displayed. This will provide
emergency water heating until service can be attended.
6. For adjustment of timers or activating vacation mode, please refer to our online tutorials at:
www.evoheat.com.au/tech-support
Do not drill any fixings or attachments into the outer casing of the tank. Drilling into the outer casing of the tank
may damage the heating coil and WILL VOID WARRANTY.

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Evo270 Hot Water Heat Pump Manual
3. Unit Specifications
-Refrigerant is compressed into vapor with high temperature and high
pressure when it goes through the compressor.
-On the discharge side of the compressor, the now hot and highly
pressurized vapor is cooled down through the heat exchange with the
water in the tank until it condenses into a high pressure, moderate
temperature liquid.
-The pressure of the liquid refrigerant drops as it passes the throttling
device.
-Finally, the refrigerant absorbs the heat from the surrounding air and
evaporates into vapor with low temperature and low pressure, where
it then it goes into the compressor again.
3.1 Dimensions & Technical Data
DIMENSIONS (mm)
A
B
C
D
E
1992
1443
593
1211
1111
Model
Evo270-1
Heating capacity
kW
3.6 Heat Pump
Water tank capacity
270
Power input
kW
0.94 Heat Pump
Running current
A
3.90 Heat Pump
Power Supply
220-240V~/50Hz
Compressor Number
1
Compressor
Rotary
Rated outlet water temp.
Deg C
60
Noise
dB(A)
48
Water inlet/outlet size
inch
¾
*Hydroboost power heat
kW
1.5
Net Weight
kg
See name plate
Shipping weight
kg
See package label
Conforms to AS 3498-2009 Australia and New Zealand
Measurement conditions:
Instant heating: Ambient air temperature 20°C/15°C, water inlet 15°C, water outlet 55°C, highest setting temperature: 75°C
Working Temp Range
1) Ambient temperature is 0°C to 40°C (Heat Pump)
2) The max temperature of water tank is 70
Operating parameters: The range of the operating water pressures: 0.15~0.7MPa
HOW IT WORKS

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Evo270 Hot Water Heat Pump Manual
4. Safety Instructions
•A qualified technician is required to install, relocate the unit if required and for all repairs.
•Good earthing is required for both the unit and power connections to prevent electrical shock.
•Ensure that there are no leaks on both the plumbing and drainage fittings.
•The unit must not be installed near flammable gas or have flammable aerosols sprayed in the vicinity.
•The base that the unit is installed on must be level and stable.
•A circuit breaker is required to be installed with this unit.
•Fingers and objects must not be placed into the fan of the unit. Children should be kept clear of the
appliance.
•In the event of the unit malfunctioning, shut off the power supply and contact your supplier or EvoHeat.
•Power the unit off during cleaning.
•The unit produces hot water and will also have hot fittings, therefore should not be touched to avoid injury.
5. Installation
5.1 Pipeline Connection
Installation of the water inlet or outlet pipes: The specification of the water inlet and outlet threat is BSP3/4(internal
thread). Pipes must be heat-resistant and durable.
Installation of the pipe for P&T valve: The spec of the valve connecting thread is BSP3/4(internal thread). After
installation, it must be confirmed that the drainpipe outlet is exposed in the air. When the flexible drainpipe is joined
to the pressure relief orifice of this valve, you must ensure that the flexible drainpipe is pointing downwards and
exposed in the air.
ATTENTION
•Do not drill any fixings or attachments
into the outer casing of the tank.
Drilling into the outer casing of the
tank may damage the heating coil and
WILL VOID WARRANTY.
•The P&T valve attached with the unit
must be installed. Failure to do so will
cause damage to the unit and possible
personal injury.
•Do not use stainless steel fittings to
connect directly with other metals to
prevent galvanic corrosion.
•Drain the water tank through the drain
valve at the bottom part of the unit.
Note: A pressure releasing valve is to be fitted
within the installation.
Spec of P&T valve:
Pressure: 0.85MP
Temperature: 99°C

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Evo270 Hot Water Heat Pump Manual
5.2 Handling & Transportation
As a rule, the unit should be stored and/or transported in its shipping container in an upright position and without
water charge. For transport over short distances, and provided due care is exercised, an inclination angle of up to 30
degrees is permitted. During transport and storage, ambient temperatures of -10 to +60 degrees Celsius are
permissible.
Forklift Transportation
When transported by a forklift, the unit must remain mounted on the pallet. The lifting speed should be kept to a
minimum. Due to its top heaviness the unit must be secured against tipping over. To prevent any damage or injury,
the unit must be placed on a level surface.
Manual Transportation
For manual transport, a wooden pallet can be used to place the unit on. Using ropes or
carrying straps, a second or third handling configuration is possible. With this type of
handling, care must be taken that the maximum permissible inclination angle of 60 degrees
is not exceeded. If transport in an inclined position cannot be avoided, the unit should be
left to rest at least one hour after it has been moved into final position before operation.
CAUTION: High centre of gravity, place on a level surface!
5.3 Location of Install & Minimum Clearances
The Evo 270 is designed for external installation; however, if possible, installing the system under the house eaves or
in a sheltered environment may help prolong the life of the system.
1. The unit must be installed, operated and maintained in good order and accordance with
these instructions.
2. If the water supply exceeds rated pressure a pressure reducing valve is to be fitted.
3. Water may discharge from the drainpipe and this must be left open to the atmosphere.
4. The pressure relief valve must be operated at least every 6 months to ensure correct
operation. The drainpipe from this valve should not allow water to collect in pipework.
5. Facilities for draining and filling the unit must be provided to maintenance. Drain points
must be at the lowest point of the system.
6. Check before installation that your water pressure is within required limits. Use a filter
and pressure relief valve on the inlet as required. A water softening device will also be
required in hard water areas.

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Evo270 Hot Water Heat Pump Manual
7. This heat pump must be installed by a licensed contractor. Do not attempt to install yourself if you are not
qualified. The Evo 270 must be installed to conform to all relevant Australian Standards and Industry Codes
including but not limited to:
a. Electrical and Electrical Safety
b. Plumbing and Hot Water Storage
c. Heat Pump Installation and Operation
Installation must also comply with any local, state or federal codes at the installation site. Failure to comply can void
your warranty, damage your unit or possible cause injury or death. Plumbing must comply with AS/NZS3500.4
INDOOR INSTALLATION RECOMMENDATIONS
•Heat pumps operate most efficiently with warmer air temperatures, and the outlet air from the unit will always
be colder than the inlet air. Therefore, it is advisable to install the unit so it receives the warmest air
temperatures possible and that the cold air is not able to recirculate back into the unit.
•The unit may be able to be installed in an unventilated room exceeding 25m3in volume.
•Venting of cold air is always advisable to prevent the air temperature dropping and lowering the efficiency of the
unit.
•Think of the unit as a 3kW air conditioner for the effect it will have on a closed room.
TO COOL THE ROOM USING THE EVO 270
Install the unit so the outlet from the heat pump is blowing INTO the room. The room MUST have some form of air
outlet otherwise the performance of the unit will suffer significantly.
TO MAINTAIN THE ROOM AT NORMAL TEMPS USING THE EVO 270
Install the unit so the outlet from the heat pump is blowing OUTSIDE the room. The room MUST have some form of
air inlet otherwise the performance of the unit will suffer significantly.
5.4 Cable Connection
The power cable is stored in the back of the unit, it is for the power supply of the unit. The unit requires an isolating
switch as required by local laws. If the power cord is damaged, it must be replaced by a qualified electrician.
5.5 Filling the Tank
Open a hot water tap inside the house. Open the cold-water inlet valve into the Evo 270 to fill the tank. When water
begins flowing out of the hot water tap inside the premises, turn off the hot water tap.
5.6 Initial Start-up of the Unit
PRE-INSPECTION
Check the water supply to the tank and pipe connections for possible leaks.
Check that the following devices are installed and operating correctly:
-Drainpipes
-P&T Valve
-Filter on inlet
-Water softening and pressure reducing devices if required.
Check that all power connections are secure before switching on.
Check that the installation space is adequate.
TRIAL OPERATION
Switch on the unit by using the controller.
If any unusual noises occur, switch the power off and consult your provider.
The parameters have been pre-set to a temperature of 60 degrees. Check that the unit is operating by looking for an
increase in water temperature over time.

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Evo270 Hot Water Heat Pump Manual
6. Operation
Check out EvoHeat’s YouTube channel for videos that walk through the controller usage and
different settings. www.youtube.com/evoheat/playlists
6.1 Main Controller Interface
ICON
NAME
FUNCTION
ON/OFF Turn the unit on or off.
UP Select options to increase values
DOWN Select options to decrease values
CLOCK Set the clock or the timer.
HYDROBOOST Turn on/off the electric heater
MODE
Switch unit running modes or save
setting parameters
TOUCH TIMING Touch setting timing
Icon
Name
Meaning
Icon
Name
Meaning
Heating Mode Enable heating mode Lock Keyboard is locked
Eco Heating
Mode Enable Eco heating mode
DTU State of DTU connection
Intelligent
Mode Enable intelligent mode
Wi-Fi State of Wi-Fi connection
*Only available as an optional upgrade
High
Requirement
Mode
Enable High requirement mode
Set
Temperature
Reached
Set temperature has been
reached and the unit will
shut off automatically
Vacation
Mode Enable Vacation mode
Lower tank
temperature
Temperature of the lower
tank
Fan Fan is on
Parameter
setting Parameter is adjustable
Hydroboost The Hydroboost setting is on Minute Minute value is being set
Defrost The unit is defrosting Second Second value is being set
Time Time is displayed

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Evo270 Hot Water Heat Pump Manual
6.2 Functions of the Controller
6.2.1 Turning the Unit ON & OFF
Press and hold for 0.5 seconds in the standby screen of the controller to turn the unit on. The main display will
now show the water outlet temperature.
Press and hold for 0.5 seconds in the running screen of the controller to turn the unit off. The main display will
now show “OFF”.
The unit will dim the screen and display the standby screen when the controller has not been touched for a minute.
Touch the power button to wake it.
Note: The ON/OFF button can only be used to turn the unit on/off in standby or on the running screen of the controller.
6.2.2 Mode Selection
From the running screen, press to select one of the modes: Heating, Eco Heating, Intelligent, High requirement,
Vacation.

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Evo270 Hot Water Heat Pump Manual
6.2.3 Target Temperature Checking & Setting
In the standby or running interface, press or once to check the target temperature of the outlet water.
Press or again to change the target temperature.
After making changes to the desired temperature, press to confirm or to cancel, then return to the previous
screen.
If the keypad is left idle for 5 seconds, the controller will exit the menu automatically and apply any changes that
were made.
Example: The target temperature is 40°C, the actual outlet water temperature is 18°C.
6.2.4 Hydro Boost Setting
The hydro boost setting (also known as Electric Heater) can be turned on when the unit is heating or in standby mode.
Press " " once to turn on hydro boost and press " " again to shut it off.
When the is unit off, press " " to turn on the hydro boost mode. At this time, the " " will light up. The main
display area alternate 2S shows "OFF" and outlet water temperature.
Press " " again to turn off the electric heating mode, the main display will display " OFF "

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Evo270 Hot Water Heat Pump Manual
6.2.5 Setting the Time and Date
In the standby or running interface, press once, the hour digit will flash.
Press the or to change the hour setting, then press to confirm.
Press the or to change the minute setting, then press to confirm.
During the process, you can press at anytime and the system will exit the operation without saving.

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Evo270 Hot Water Heat Pump Manual
6.2.6 Setting the Timer
Timer settings can be set in standard mode, economic mode, auto mode and fast heating mode. Note: there are two
types of timing settings: touch and button. The unit will run during the lit time periods and stop on the dim areas.
Touch
Press and hold for 2 seconds (the timer display will flash)
When the timer display flashes, choose your start-up time (A) and end time (B).
Press to save the setting and exit back to the main interface.
Button
Press and hold for 2 seconds (the timer display will flash)
When the timer display flashes, choose the start-up time (C) and end time (D) by pressing or and .
Press to save the setting and exit back to the main interface.
Example: Setting the unit to run from 7-11am & 4pm-6pm using Touch mode.

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Evo270 Hot Water Heat Pump Manual
6.2.7 Cancelling the Timer
To cancel a timer once it has been set, hold down the CLOCK button for 2 seconds until the timer display begins
flashing (as you would set the timer).
Press the POWER button while the timer is flashing to cancel it. The yellow timing periods will disappear when
the timer has been cancelled.
6.2.8 Vacation Mode
Ensure the unit is ‘OFF’ before setting vacation mode. The date you set in this mode will determine what date the
unit starts back up.
After selecting vacation mode, press and hold for 2 seconds, the ‘month’ value will begin to flash in the display
area. Press the UP or DOWN arrows to display the desired month, then press to confirm and move to
altering the ‘day’ value.
The ‘day’ value will flash when it is selected, use the arrow keys to select your desired start day, then press to
save all changes and exit back to the main interface.
Note: Format is mm/dd
Example: The unit will start up on September the 28th.

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Evo270 Hot Water Heat Pump Manual
6.2.9 Keyboard Locking
Press and hold for 5s to lock the keyboard. To unlock, press and hold for 5s again.
6.2.10 Force Defrosting
In the shutdown state, press for 10 seconds to enable the forced defrosting function. The defrosting symbol
will light up. Press for 10 seconds again to exit the forced defrosting function.
6.2.11 Fan/Ventilation Function
The fan speed (High Speed, Low Speed or Off)can be controlled by the fan mode on the controller.
Note: when the compressor is on, the fan will always run at high speed.
When the parameter HO2 is set to 1, press the for 2s.
Once you hear a beep you can set the ventilation mode. Press for 2s, this
will change the fan speed. Continue to press for 2s until you reach your
preferred speed.
Fan mode symbols:
High Speed
Low speed
Fan icon disappears: off
Note: When H02 is set to 0, there is no ventilation function.

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Evo270 Hot Water Heat Pump Manual
7. Troubleshooting
EvoHeat have developed a YouTube Channel where you will find useful videos regarding
using the controller and potential errors. Be sure to have a look to see if the answer to your
question is there:
https://www.youtube.com/channel/evoheat
Malfunction Display Cause Solution
Bottom water temp. failure P01 The water bottom temp. sensor is
open or short circuit.
Check or change the water bottom
temp. sensor
Top tank water temp. failure P02 The water top tank temp. sensor is
open or short circuit
Check or change the water top tank
temp. sensor
Ambient temp. failure P04 The ambient temp. sensor is open or
short circuit
Check or change the ambient temp.
sensor
Coil temp. failure P05 The pipe temp. sensor is open or
short circuit Check or change the pipe temp. sensor
Refrigerant absorb temp. failure P07 The evaporator temp. sensor is open
or short circuit
Check or change the evaporator temp.
sensor
Anti-freeze temp. failure P09 The anti-freeze temp. sensor is open
or short circuit
Check or change the anti-freeze temp.
sensor
Solar temp. failure P034 The solar temp sensor is open or
short circuit Check or change the solar temp sensor
High pressure protection E01 The exhaust pressure is high, high
pressure switch action
Check high pressure switch and
cooling return circuit
Low pressure protection E02 The suction pressure is low, low
pressure switch action
Check low pressure switch and cooling
return circuit
Water flow failure E03 No water or litter water in water
system
Water, check for flow volume pump
failure
Electric-heater overheat
protection E04
Water flow volume not enough,
water system pressure difference is
small
Water, check if the flow volume
system is jammed
Anti-freeze protection E07
Water flow volume not enough,
water system pressure difference is
small
Water, check if the flow volume
system is jammed
Communication failure E08 Wired remote control with master
signal failure
Check the connection line between
the wired remote control and mother
board
Winter defrost protection E09 Ambient temperature is too low

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Evo270 Hot Water Heat Pump Manual
8. Appendix
8.1 PCB Description
The type of fuse is 5×20_5A/250VAC
COMP
RED
WHT
CR CC
CS
N
WHT
N
N
N
13
2 4 5 67 8
01
TO POWER SUPPLY
230V~/50Hz
5
EEV
COMP：Compressor
FM：Fan motor
CT：Coil temperature
HT：Heater
HP：High pressure protection
TC：Transformer
4V：4 way valve
TTT：Top of tank temperature
BTT：Bottom of tank temperature
MTS：Mechanism temperature switch
AT：Ambient temperature
EEV：Electronic expand valve
SUT：Suction temperature
AI01
HP
HP
BRN
BLU
Y/G
OUT1
OUT3 OUT4 OUT5 AC-N
3
4
3
4
CN5
GND
AI05
GND
AI04
GND
AI03
GND
AI02
GND
CN1
CN2
12V
NET
GND
GND
DI01
GND
DI03
GND
DI04
GND
DI05
GND
L1
CC
L2
HT
2
2
GND
AI06
DI06
GND
OUT6
ORG
RED
485-B
485-A
CN6
OUT2
BTT
TTT
CT
t
5K
t
5K
6.8K
t
5K
t
5K AT
t
5K SUT
L N
BLURED Y/G
BRN BLU Y/G
TC 12V Controller
HP
4
3
C1
N
HT HT
1
2
3
4MTS
RESET
1
3
2
4
C2
BLU BLK
WHT
ORG
RED
2
L
13
2 4 5 67 8
02
L1
L2
N
N
WHT
YEL
BLK
RED
WIFI
BLK
CC
N4V
4V
4V
N

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Evo270 Hot Water Heat Pump Manual
8.2 Caution
1. To reduce the risk of excessive pressures and temperatures in this water heater, install temperature and
pressure protective equipment required by local codes and no less than a combination temperature and
pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection
of production of listed equipment or materials, as meeting the requirements for Relief Valves and Automatic
Gas Shutoff Devices for Hot Water Supply Systems, ANSIZ21.22. This valve must be marked with a maximum
set pressure not to exceed the marked maximum working pressure of the water heater. Install the valve into
an opening provided and marked for this purpose in the water heater, and orient it or provide tubing so that
any discharge from the valve exits only within 6 inches above, or at any distance below, the structural floor,
and does not contact any live electrical part. The discharge opening must not be blocked or reduced in size
under any circumstances.
2. Hydrogen gas is produced in a hot water system served by this heater that has not been used for along
period of time (2 weeks or more). Hydrogen gas is extremely flammable. To reduce the risk of injury under
these conditions, it is recommended that the hot water faucet be opened for several minutes at the kitchen
sink before using any electrical appliance.
3. Children should be supervised to ensure that they do not play with the appliance.
4. The appliance is fitted with means for disconnection from the supply mains having a contact separation in all
poles that provide full disconnection under overvoltage category lll conditions, and these means must be
incorporated in the fixed wiring in accordance with the wiring rules.
There should be no smoking or open flame near the faucet at the time it is open.
8.3 Earthing Methodology

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Evo270 Hot Water Heat Pump Manual
8.4 Use of the P&T Valve
The P&T valve is used to prevent the temperature or pressure becoming too
high inside the tank. When the temperature or pressure reaches the set
value, the valve will open automatically to force the pressure or
temperature to decrease.
The handle of the safety valve should be tested once every six months to
remove the calcium carbonate deposits and guarantee there is no blockage
in the device. Take care to avoid burns for the temperature of the
discharging water is very high.
Vent pipes should be thermally insulated to prevent safety risks caused by
freezing pipes in winter.
P&T valve: Model: PTR-20, action temperature: 99℃, action
pressure:0.85MPa
WARNING Fail to operate the relief valve easing gear at least once every six months may result in the water heater
exploding. Continuous leakage of water from the valve may indicates problem with the water heater.
8.5 Using the Overheating Protector
Return the unit to its normal operational status it will have to be re set manually. Please contact EvoHeat for a
service if this occurs.
OPERATION DETAILS
To access the overheat protector the front dark grey controller panel must be removed.
Remove the 3 screws on the front panel and push the front cover upwards.
Then remove the screws covering the overheat protector panel as below:
8.6 Draining the Water Tank
1. Close the cold-water inlet valve into the Evo 270.
2. Open a hot water tap inside the premises.
3. Undo the drain plug on the base of the unit to drain the water from the system.
CAUTION: THE WATER FROM THE HOT WATER TAP AND THE DRAIN PLUG WILL BE HOT.
BE CAREFUL OF BURNS AND SCALDS. WEAR PROTECTIVE CLOTHING

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Evo270 Hot Water Heat Pump Manual
9. Maintenance
Your Evo 270 will operate most efficiently if regularly inspected as part of your home maintenance schedule.
MINOR ANNUAL MAINTENANCE
It is recommended that the minor maintenance be performed every 12 months by the dwelling occupant.
The minor maintenance includes:
•Operate the easing lever on the temperature pressure relief valve. It is very important you raise and lower
the lever gently. Exercise care to avoid any splashing of water, as water discharged from the drain line will be
hot. Stand clear of the drain lines point of discharge when operating the valve’s lever.
•Operate the easing level on the expansion control valve (if fitted). It is very important you raise and lower
the lever gently.
•Conduct a visual inspection of all plumbing and electrical connections.
•Check the condensate drain line to ensure it is not blocked.
•Check that air vents are not blocked or obstructed, and if necessary clean with a damp cloth or air blower.
•Conduct a general external clean of the unit with a damp cloth.
MAJOR FIVE YEAR SERVICE
It is recommended a major five (5) year service be conducted on the Evo 270.
Warning: Servicing of a water heater must only be carried out by qualified EvoHeat personnel. Phone EvoHeat
Service on 1300 859 933 for our closest Accredited Service Agent.
Note: The five-year service and routine replacement of any components such as the anode and relief valve(s) are not
included in the EvoHeat warranty. Only genuine replacement parts should be used on this water heater.
The major service includes the following actions:
•Replace the temperature limiting valve.
•Replace the temperature pressure relief valve.
•Inspect the anode and if required, replace the anode. If the anode is not replaced, it should be replaced
within three years of this service.
•Check the heating cycle of the unit.
•Visually check the unit for any potential problems.
•Inspect the plumbing and electrical all connections.
•Check the condensate on drain line to ensure it is not blocked.
Note: The water heater may need to be drained during this service. After the completion of the service, the water
heater will take some time to reheat the water. Depending upon the power supply connect on, hot water may not
be available until the next day.