EcoSpring ES190 Installation instructions

Installation & Owner’s Manual
ALL IN ONE Type Air-source Heat Pump Water Heater
EcoSpring ES190
Thank you very much for purchasing our product,
Before using your unit, please read this manual carefully and keep it for future reference.

ES300 Installation & Owner’s Manual
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If you can’t make sure that your house power supply is earthed
well, please don’t install the unit.
The unit must be installed by a licensed tradesperson and in
accordance with:
• EcoSpring installation instructions.
• AS/NZS 3500.4-”National Plumbing and Drainage Code
Hot Water Supply Systems-Acceptable Solutions”.
• AS/NZS 3000-Wiring Rules.
• Local authority regulations.
• NZ Building Code.
• Local Occupational Health and Satety (OH&S) Regulations.
This water heater must be installed by a licensed person as required by the Building Code. Only a licensed
person will give you a compliance certicate, showing that the work complies with all the relevant standards.
Please read and understand this booklet.If you have any questions,please contact our service
representative on 0800 200 510.
HOT WATER CAN BE DANGEROUS
NOTICE TO CUSTOMERS
 WARNING!
Warning – Hot water burns. As a safety precaution, young children should always be supervised around
hot water xtures.
Heat pump water heaters can store water at temperatures that can cause scalding. Water temperatures
over 50°C can scald and care needs to be taken to ensure that injuries do not occur through incorrect use of your
water heater.
As heat pump water heaters can generate water temperatures in excess of 60°C, regulations require that a
tempering valve be tted to the heater to prevent water temperatures going to the home exceeding a preset safe
maximum. The tempering valve must be connected to the hot water outlet line from the water heater. The valve
must be tted by an authorized plumber at the time of installation or in retrotting to existing systems.
Care should be taken to avoid coming into contact with any pipe work or xtures associated with the water heater
pipe lines. Under NO circumstances should any ‘home handy man’ type modications be attempted.
• This appliance is not intended for use by persons (including children) with reduced physical sensory or mental
capabilities, or lack of experience and knowledge, that prevents them from using the appliance safely without
supervision or instruction. Children should be supervised by a responsible person for their safety to ensure that
they do not play with the appliance.
• DANGER: Failure 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 indicate a problem with the water heater.
• THE INSTALLATION MUST COMPLY WITH THE REQUIREMENTS OF AS/NZS 3500.4, AS/NZS 3000, and
all local codes and regulatory authority requirements. In New Zealand, the installation must conform to
the New Zealand Building Code G12.
The power supply must be protected by an individual circuit breaker at the main electrical supply switchboard
and rated to suit the booster size. The supply to the heat pump water heater can be operated directly from the
switchboard or via a remotely mounted switch or time clock as requested by the customer. The heater must be
provided with a suitable means for disconnecting the power supply.
This unit is required reliable
earthingbefore usage, may
otherwise result in death or
injury.

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PARTS NAMES
NOTE
The pictures in this manual are for explanation purpose only. They may be slightly different from the heat pump water heater you
purchased (depending on model).
Fan Assy
PTR Valve
Top Cover
Evaporator Filter
Magnesian Stick
Rear Cover
Front Cover
Water Outlet
Water Inlet
Drain port
Electric Heater
Front Decorative Board
Temperature Sensor T5
Electronic Control Box
Power Connect Box and cover
Compressor
Display
Magnesian Stick Cover
Thermostat TOD
Thermostat TCO
Electric Heater Cover

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Installation & Ownerʻs Manual
CONTENTS PAGE
WARNING
2. SAFETY INFORMATION
Please read thoroughly all of the instrucitons before installing or
operating the unit.
The following safety warnings are very important, always read and
obey all safety symbols:
● The unit must be earthed effectively.
●This appliance must be installed in accordance to AS/NZS stan-
dards and the NZ Building code.
● A RCD breaker must be installed adjacent to the power supply.
● Do not remove, cover or deface any permanent instructions,
lables, or the data label from either the outside of the unit or
inside of unit panels.
●Only qualified persons should perform the installation of this unit
in accordance with local national regulations and this manual.
Improper installation may result in water leakage, electric shock
or fire.
● Ask qualified person for relocating, repairing and maintaining the
unit.
Improper installation may result in water leakage, electric shock
or fire.
●Electric connection work should comply with the instructions of
local power company, local electric utility and this manual.
●Never use an incorrectly fuse rated, otherwise the unit may break
down and risk of electrical fire.
● Do not insert fingers, rods or other objects into the air inlet
or outlet. The fan is rotating at high speed, and may cause injury.
● Never use a flammable spray such as hair spray, lacquer paint
near the unit. It may cause a fire.
●This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance
NOTE
Above calculations are based on ideal conditions, the final
amount will be different the actual running will vary with
conditions, such as running period, ambient temperature, etc.
01234567 8 9 10 11 12 13
HWHP
Gas Burner
E-heater
RunningCost
Fig.1-1
1. BASIC OPERATION PRINCIPLE
We know from experience, the natural flow of heat, moves from a
higher to alower temperature source, aheat pump can transfer heat
from alower temperature source to ahigher temperature source with
high efficiency.
The advantage ofaheat pump water heater is that it can supply more
heat energy,normally 3:1times than input electricity power by
extracting the heat from ambient atmosphere in afree-of charge way
and transfer to Sanitary Hot Water. Compared to atraditional water
heater, such as electric water heater or gas burner water heater, their
efficiency is normally less than 1:1, which means you can dramatically
cut off the bill of family daily SHW by the application of heat pump
water heater, the following examples will show more details.
Power consumption comparison under the same condition to heat 1
ton of water from 15˚C to 55˚C.
Q=cM(T1-T2)=1(kCal/kg*℃)X1000(kg)X(55-15)(℃)=40000kCal=168MJ
=46.67kW*h
3
3
4
6
8
11
14
16
17
BASIC OPERATION PRINCIPLE..........................................................
SAFETY INFORMATION......................................................................
BEFORE INSTALLATION......................................................................
INSTALLATION......................................................................................
OPERATING INSTRUCTIONS...........................................................
OPERATION ..........................................................................................
TROUBLE SHOOTING.........................................................................
MAINTENANCE.....................................................................................
SPECIFICATIONS..................................................................................
Table 1-1
HPWH Gas Burner E-heater
Energy
ResourceAir,Electricity GasElectricity
Transfer Factor860kCal/kW*h8905kCal/m³860kCal/kW*h
Average
Efficiency
(W/W)
3.5 0.80.95
Unit Cost 0.25 NZD/kW*h2.2C/MJ 0.25 NZD/kW*h
RunningCost
NZD 12.28 4.623.33
13.33kW*h 210MJ 49.13 kW*h
Energy
Consumption

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Table 3-1
Accessory Name Qty. Sharp Purpose
1
Owner’s & Installation
Manual
Installation and use instruction
This manual
1
Drain pipe for
water condensation
Use for draining the condensate
water (Has been connected to
the lower condensate drain port)
by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
●If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified person.
●DISPOSAL: Do not dispose this product as
unsorted municipal waste. Collection of such
waste separately for special treatment is neces-
sary. Do not dispose of electrical appliances as
unsorted municipal waste, use separate collec-
tion facilities. Contact your local government for
information regarding the collection systems
available.
3. BEFORE INSTALLATION
3.1 Unpacking
3.1.1 Accessories
3.1.2 How to transport
1) In order to avoid scratching or deforming
the unit surface, apply guard boards
to the contacting surfaces.
No contact of fingers and other things
with the vanes.
Don’t incline the unit more than 45°
in moving, and keep it vertical when
installing.
2) This unit is heavy, it needs to be carried by two or more persons,
othewise might cause injury and damage.
3.2 Location requirements
1)
preserved.
2) The air inlet and outlet should be free from obstacles and strong
wind.
3) The base surface should be flat, surface should be inclined no
more than 2° and able to bear the weight of the unit and suitable
for installing the unit without increasing noise or vibration.
4) The operating noise and air flow expelled should not affect
neighbors.
5) No flammable gas nearby.
6) It should be convenient for piping and wiring.
7) If it is installed in indoor space, it might cause indoor temperature
to decrease and noise disturbance, Please take preventive
measures for this.
8) If the unit has to be installed on a metal part of building, make
sure the electric insulation meets the relevant local electric
Gradient limit>45°
CAUTION
●The earthing pole of socket must be well grounded, make sure
that powersupplysocket andplugare dry and connected tightly.
● Before cleaning, be sure to stop the operation and turn the
breaker off or pull out the power plug. Otherwise, an electric
shock and injury may be caused.
●Water temperature over 50℃can
cause severe burns instantly or
death from scalds. Children,
disabled and elderly are at
highest risk of being scalded.
Feel water before bathing or
showering. Water temperature
limiting valves are required as
●Do not operate the unit with a wet hand. An electric shock may
be caused.
●The installation height of power supply should be over 1.8m, if
there is any water exposure, steps must be taken to separate
the power supply from water.
well as an isolation value.
during operation. But, if there is a large volume of water, call
your service agent for instructions. After long term use, check
the unit base and fittings. If damaged, the unit maysink, resulting
in injury. Arrange the drain pipe to ensure smooth draining.
Improper drainage work may cause wetting of the building,
furniture etc. Do not touch the inner parts of the controller or
remove the front panel. Some parts inside are dangerous to
touch, and damage may be caused.
● Do not turn off the power supply.
System will stop or restart heating automatically. A continuous
power supply for water heating is necessary, except service
and maintenance.

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3.4 If installed in inclosed space
The water heater must be located in a space >15m³, and must have
unrestricted air flow. As an example, a room that has an 2.5 tall
ceiling and is 3 meter long by 2 meter wide would contain 15m³ .
3.5 Unit outline dimension (unit: mm)
Fig.3-2
Fig.3-1
B
H
A
Table 3-2
H1580
A568
560
B
RSJ-15/190RDN3-B
Dimension
Model
600
500
300
Display
Barrier
600
600
300 300
Air outlet
3.3 Maintenance space requirements (unit: mm)
●The ambient air temperature must also be considered when
installing this unit, in heat pump mode the ambient air tempera-
ture must be above 5℃and below 43 If the ambient air
temperature falls outside these upper and lower limits,the
electrical elements will activate to meet the hot water demand
and the heat pump will not operate.
●
temperatures. Aunit located in unconditioned spaces (i.e.,
garages, basements, etc.) may require the water piping, conden-
sate piping, and drain piping to be insulated to shelter agianst
freezing.
CAUTION
CAUTION
WARNING
may result.
in a location protected from the wind.
Installing the unit in any of the following places may lead to
malfunction (If it is inevitable, consult the supplier prior to purchase).
machines.
● Seaside or where the air contains salt.
● Hot springareawhere corrosive gases exist, e.g., sulfide gas.
● Factories where the power voltage fluctuates seriously.
● Inside a carorcabin.
way to avoid these, please install a cover.
The circulating air for every unit should be more than 350m3
Make sure there is enough installation space.
dimensional drawing (see Fig.3-1,Fig.3-2)

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4. INSTALLATION
3) Ifter conection of the water system piping work, turn on the cold
water inlet valve and hot water outlet valve and bleed all air from
the tank. When water flows smoothly outfrom water outlet pipe(tap
water outlet), the tank is full, turn off all valves and check pipeline
to make sure there is no any leakage.
4) If the inlet water pressure is less than 0.15MPa, apump should be
installed at the water inlet.
5) Condensate may leak from unit if drainage pipe is blocked, a
drainage pan is recommended as shown as following figure:
1) Installation of the water inlet or outlet pipes: The water inlet
outlet thread is thread). Pipes must be
heat-resistant and durable.
Handle
Drainage
pipe
WARNING
CAUTION
● Piping water system as the above figure. In case of installing
where outside temperatures fall below 5
℃ , insulation must be
provided for all hydraulic components.
●
6 month to make sure that there is no
restriction of the valve. Please beware of
the hot water from the valve. The drainage
pipe should be well insulated in order to
prevent water inside pipe from freezing in
cold weather.
Fig.5.1
Pipeline Connection Schematic
Water Outlet
User
Water Inlet
Barrel-drain
Drain port
Upper
Condensate Outlet
Lowerr
Condensate Outlet
User
User
4.1
Pressure Limiting&
Strainer& Non-return valve
Cold water
expansion valve

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4.3.1 Electric Wiring Illustration
CAUTION
4.3 Electric Connection
Fig.4-2
50mm larger than
the dia. of unit
Max. 22mm
Heat Pump
Water Heater
WARNING
4.4 Installation checklist
4.4.1 Location
1) The flooring beneath the water heater must be able to support
the weight of the water heater when filled with water (286kg full).
2) Located indoors (such as abasement or garage) and in a
vertical position. Sheltered from freezing temperatures.
4.2 Installation requirement
To smoothly drain condensate from unit, please install the main unit is
onahorizontal floor. Otherwise, please ensuring the drain vent is at
ground
should be no more than 2°.
●Set the electric leakage protector according to the relevant
electric technical standards of the State.
●The power cord and signal cord shall be laid out neatly and
properly without mutual interference or contacting the connec-
tion pipe or valve.
-
tion before power is turned on.
Fig.4-3
Drain
o
Drain and must be effectively earthed.
Fig.4-4
T3:
T4: Ambient Temp. Sensor
T5L: Tank Temp. Sensor
TP: Discharge Temp. Sensor
TH: Suction Temp. Sensor
Ambient temperature sensor
Suction temperature sensor CN20
Fan capacitor
SW3
SW3-2
SW2
SW2-1
Without

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5.1 Operation steps
5. OPERATING INSTRUCTIONS
Water Filling
Hot water outlet
Close
Water out
When water flows out from the water
outlet, the tank is full. Turn off the hot water
outlet valve and water filling is finished.
Open
Open the cool water inlet valve and the hot
water outlet valve.
Cool water inlet Hot water outlet
Open
Fig.5-1
Before using this unit, please follow the steps below.
Filling with water: If the unit is used for the first time or used again after
emptying the tank, please make sure that the tank is full of water
before turning on the power.
Method: see Fig.5-1.
CAUTION
Close
Open
Drainpipe shut-off valve
Open
Cool water inlet
Close the cool water inlet valve, open the hot
water outlet valve and open drainpipe.
Hot water outlet
●After powered on, the display lights up. Users can operate the
unit through the buttons under the display.
●
should be emptied.
Method: See Fig.5-2:
●Operation without water in water tank may result in the damage
of auxiliary e-heater. In case of such damage, the manufacturer
will not be liable for any damages caused by this issue.
3) Provisions made to shelter the area from water damage.
Metal drain pan installed and piped to an adequate drain.
4) Sufficient room to service the water heater.
5) Sufficient air for the heat pump to function, the water heater
must be located in aspace >15m³,and musthave unrestricted
air flow.
6) The unit cannot be placed into any type of closet or small
enclosure.
7) The site location must be free from any corrosive elements in
the atmosphere such as sulfur, fluorine, and chlorine. These
elements are found in aerosol sprays, detergents, bleaches,
cleaning solvents, air fresheners, paint, and varnish removers,
refrigerants, andmanyothercommercialandhousehold
productsaswellasnaturally occuringenvironments. In
addition excessive dust and lint may affect the
operation of the unit and require more frequent cleaning.
8) The ambient air temperature must be above 5ºC and below
43ºC.If the ambient air temperature falls outside these upper
and lower limits the electrical element will be activated to
meet the hot water demand.
4.4.2 Water System Piping
installed with adischarge pipe run to an adequate drain and
sheltered from freezing.
2) All piping properly installed and free of leaks.
3) Unit completely filled with water.
4) Tempering valve installed per manufacturerʼs instructions.
Condensate Drain Line Installed.
Must be locatedwithaccess toanadequatedrain or
condensate pump.
Condensate drain lines installed and piped to an adequate
drain or condensate pump.
4.4.3 Electrical Connections
2) Wiring size and connections comply with all local applicable
codes and the requirements of this manual.
3) Water heater and electrical supply are properly grounded.
4)Correctlysized overloadfuseorcircuitbreaker protection
installed.
4.4.4 Post Installation Review
1) Understand how to use the User Interface Module to set the
various modes and functions.
2)
of the condensate drain pan and lines. This is to help prevent
any possible drain line blockage resulting in the condensate
drain pan overflowing.
3)
indicator that both condensation drain lines may be blocked.
Immediate action is required.
4) To maintain optimal operation check, remove and clean the air

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Fig.5-2
Emptying
Drainpipe shut-off valve
Close
After emptying, please replace the nut of
drainpipe.
5.2 Trial- running
5.2.1 Check list before commissioning.
1) Check list before trial-running.
2) Correct installation of the system.
3) Correct connection of water/air piping and wiring.
4) Condensate draining smoothly well insulated for all hydraulic
part.
5) Correct power supply.
6) No air in the water pipeline and all valves opened.
7) Effective RCD installed.
8) Sufficient inlet water pressure (between 0.15MPa and 0.70MPa)
(150-700kPa).
5.2.2 Operating Capability
1) This unit has two kinds of heat sources: Heat pump
(compressor) and electric heater.
The unit has one temperature sensor, which is installed at the
upper portion of the tank.
2) Heat Pump Modes
2.1) Economy Mode: In this mode, only the heat pump system is in
operation.
Tank
Water temperature sensor
Electric heater
Water inlet
Water outlet
Fig.5-3
The unit can operate with three modes: Economy Mode,
Hybrid Mode and e-heater Mode.
Economy mode is the normal mode.
The suitable operating ambient air temperature range
is 5~43°C. (Water outlet temperature range 38~65°C, running
ambient 5~43°C). 2.2) 2.3)
Hybrid Mode: In this mode, the system will adjust the working
capabilities of e-heater and heat pump according to the tank
water temperature. The system can heat water by the heat pump,
e-heater, or together in this mode. The suitable operating air
ambient range is -20~43°C. (Water outlet temperature range
38~70°C, running ambient -20~43°C).
In this mode, if ambient air temperature is lower than 5°C,
e-heater is the only heat source. If the ambient temperature is
between 5°C and 10°C, e-heater and the heat pump will activate
together. If the ambient temperature is higher than 10°C, it will
only activate the heat pump when water temperature is lower
than 65°C. When water temperatur is above 65°C, only the
e-heater will activate.
e-heater: In this mode, only the element will be used to heat the
water. (Water outlet temperature range 38~70°C, running
ambient -20~43°C).
3) Water Temperature Display
The temperature shown on the display depends on the water
temperature sensor. Itisnormal that sometimes the display tempera-
ture decreases while the unit is running, it is caused when the
natural convection of the upper hot wate mixes with by the bottom
cold water which flows from inlet tap.
4) Operating mode should be selected manually. Refer to table 5-1.
Running Temperature Range Water temperature limits:
Defrosting During Water-heating
In heat pump running period, if the evaporator becomes frosted in
lower ambient temperature, the system will defrost automatically
to keep effective performance (about 5~15min). At defrosting time,
the compressor will stop, but fan motor will still run.
Heat-up Time
There are different heat-up times at different ambient tempera-
tures. Normally lower ambient temperature result in longer heat-up
times because of lower effective performance.
5) Heat Source Shift
The default heating source is heat pump.
If ambient temperature range is out of heat pump operating range,
heat pump will stoprunning, the unit will shiftautomaticallytoactivate
e-heater and show the icon LA on the display, then if the ambient
temperature goes into the running range of heat pump again, it will
stop e-heater and shift automatically to heat pump again, and the
icon LA will be extinguished.
If the target water temperature is higher than maximum tempera-
ture (Heat pump), the unit will activate heat pump firstly to the
maxinum temperature, then stop heat pump, activate e-heater to
continually heat water to the target temperature.
NOTE
If only using e-heater mode, approx 60% of the tank water will be
heated, so set ahigher target water temperature if the ambient
temperature is out of the heat pump running range.
NOTE
If the system continuously reports heat pump protection, the latest
error code and will be shown on the display, then heat pump will
stop running, and the unit will shift automatically to e-heater mode
as the backup mode, but the code and will be shown until power
is reset.
--
65
Ambient temp.
range
Maxinum temp.
(Heat pump)
Table 5-1
Setting temp.
range
Operation
mode
Economy mode
Hybrid mode
E-heater mode
5~43
-20~43
-20~43
38~70
38~65
38~70
65
2.2)
2.3)

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NOTE
While the ambient temperature is below 5℃, heat pump
efficiency will decrease dramatically, the unit will automatically
shift to E-heater mode.
⑤ About TCO and TOD
The power of compressor and E-heater will be automatically
shut-off or turn on by TCO and TOD.
● If the water temperature is higher than 78℃, the TODwill automati-
cally shut off the power of compressor and E-heater, and turn it on
it if the temperature fall down below 68℃.
●If the water temperatureishigher than 85℃, the TCO will automati-
cally shut off the power of compressor and E-heater, it must be
reset by an authorised service technician.
⑥Restart After a Long Term Stop
When the unit is restarted after along term stop (trail running
included), it is normal that outlet water is unclean. Turn the tap on
and the water will be flushed clean.
5.2.3 Basic function
1) Weekly disinfect function
Under disinfection mode, unit immediately starts to heat water up
to 65℃to kill any potential of legionella bacteria inside water of
tank,icon will light on the display screen during disinfection;
Unit will quit disinfection mode when water temperature is higher
than 65℃ and extinguish icon.
2) How to turn on the unit:
If unit is OFF->press ->button will be unlocked ->press
to select mode ->press to set target water
temperature->press ->unit will automatically select mode
and start to heat water to target temperature.
Fig.5-4
500
1000
1500
2000
2500
3000
5
7
15
20
25
30
32
35
40
43
Capacity(W)
Ambient temp(℃)
15 - 45
15 - 55
15 - 65
Fig.5-5
1
2
3
4
5
6
7
5
7
15
20
25
30
32
35
40
43
COP(W/W)
Ambient temp(℃)
15 - 45
15 - 55
15 - 65
Fig.5-6
0 : 00: 00
2:24: 00
4:48: 00
7:12: 00
9:36: 00
12: 00: 00
14:24: 00
5
7
15
20
25
30
32
35
40
43
Time(h
)
Ambient temp(℃)
15 - 45
15 - 55
15 - 65
Recovery Time
Defrosting during Water-heating
If the evaporator freezes over in Economy Mode and Hybrid
Mode during cold weather, the system will defrost automatically
to keep effective performance(3~10 min).
In defrosting mode, the fan motor will run at ahigh speed and
E-Heater will operate.
Ambient Temperature
The systemʼs operational temperature is between -20℃~43℃
The following are the operation temperatures for each mode.
Economy Mode: 5℃~43℃
Hybrid Mode: -20℃~43℃
E-Heater Mode: -20℃~43℃
Mode Selection
The different modes are designed to meet different demands
and the following are recommended selections.
Economy Mode: 5~43℃,acontinuous hot water demand below
150L(65℃);
Hybrid Mode: -20℃~43℃,acontinuous hot water demand
between 150L~200L(70℃);
E-Heater Mode: -20℃~43℃,acontinuous hot water demand
between 150L~200L(70℃).
Self-Protection Apparatuses
When the self-protection occurs, the system will be stopped and
will begin self-check, and restart when the protection resolved;
When the self-protection happens, the buzzer will buzz in every
other minute, the ALARM indicator will flash and the display will
indicate the error code and water temperature alternatively.
Press CANCELkey for 3sec to stop the alarm. All stop when the
protection is resolved and error code disappears from the
display.
In the following circumstances, self-protection starts:
Air inlet or outlet is blocked;
The evaporator is covered with too much dust;
Incorrect power supply (exceeding the range of 220-240V)
NOTE
When self-protection happens, cut the power supply manually
and restart after the error resolved.

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6. OPERATION
6.1 Control Panel Explanation
6.2 Display Explanation
Fig. 6-1
Display
Operation
Fig.6-2
① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨
10
11
12
13 14 1615 17 18 19
11
10
12
13
⑤
⑥
⑦
⑨
⑧
WATER TEMP
will be displayed all the time.
shows water temperature on normal time;
shows setting temperature when setting
temperature;
No Icon Description
DISINFECTION:
will be displayedwhenthe unit is in
disinfectionmode,otherwise will be
extinguished.
LOCK:
will be displayed if buttons are locked,
otherwise will be extinguished.
ECONOMY MODE:
will be displayed if unit is operating
willflashwith 1Hzfrequency if
HYBRID MODE:
will be displayed if unit is operating
in Hybrid Mode. When selecting mode,
will flash with 1Hz frequency if
Hybrid Mode is selected at the off time.
E-HEATER MODE:
will be displayed if unit is operating
will flash with 1Hz frequency if
ALARM:
When unit is displaying
will flash with 5Hz frequency as well as
buzzer sounding 3 times every minute until
second.
HIGH TEMP:
If target water temp. is higher than 50℃,
will be lightened , otherwise will be
extinguished.
FILL WATER:
will be displayedandflashwith 1Hz
frequency when the unit is re-powered on if
the unit was off at last time of power on,
then if press once, will be displayed
without flashing,then press again, will
be extinguished all the time.will not be
displayed when the unit is re-powered on if
the unit was on at last time of power on.
TEMP-UNIT
will be
displayed if displays temperature,
otherwise will be extinguished.
Table 6-1
①
②
③
AMBIENT TEMP OUTSIDE THE OPERATIONAL
RANGE OF HP:
will be displayed if the ambient temp. is
not in the operating range of the heat pump,
otherwise will be extinguished.
④
WIRE CONTROLLER (Reserved function):
will be displayed if connected to awire
controller, otherwise will be extinguished.
COMPRESSOR:
will be displayed if compressor is activated,
otherwise will be extinguished.
No Icon Description
E-HEATER:
will be displayed if e-heater is activated,
otherwise will be extinguished.
14

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Fig. 6-3
6.2.1 Operation interface
20 21 22 23 27
24 25 26 28
Table 6-2
21
20
23
22
24
Mode Selection
Press button to select operation mode. The
The unit can heat water only by heat pump
system in this mode.The suitable operation ambient
temperature range is 5~43℃.
The unit can heat water by heat pump system,
e-heater, or together in this mode. The suitable
operation ambient temperature range is -20~43
℃.In this mode, if ambient temperature is lower
than 5℃, e-heater is the only heat source. If the
ambient temperature is between 5℃and 10℃,
e-heater and the heat pump will active together.
If the ambient temperature is higher than 10℃, it
will only activate the heat pump when water
temperature is lower than 65℃and only active
e-heater when water temperature is higher than
65℃.
The unit can heat water only by e-heater in this
mode. The suitable operation ambient tempera-
ture range is -20~43℃.
Cancel
Unlock Control Panel:
In order to prevent wrong operation, a
special lock function has been designed. If
there is no operation for 1minute, control
panel will be locked automatically, and
display the lock indicator . If the control
panel is locked, no button can be operated.
Press button for 3seconds to unlock,
then all buttons could be operated normally.
15
16
17
18
19
SET-TEMP
will be displayed when setting water
temp., otherwise will be extinguished.
OPERATION INDICATOR:
will be
displayed if unit is ON, otherwise
will be extinguished.
CLOCK
will be displayed all the time.
shows current clock on normal time;
shows setting clock when setting timer.
TIME CONFLICT (Reserved function)
will be displayed if the timer which has
been set on the control panel is not the same
as that set on the ware controller.
TIME OFF
will be displayed if the timer is set.
TIME ON
will be displayed if the timer is set.
Set Clock
The clock is for a24-hour system and the initial
time is 00:00. To make abetter use of this unit,
it is recommended to set the time for accurate
be reset to the initial time 00:00.
Press the button to enter clock
setting, the hour value of clock will
flash slowly.
Press the button again or no
operation for 10 second, flashing will
stop and confirm the clock setting.
Press the button again, confirm
the hour setting. Then the minute
value of clock will flash slowly.
Set the hour value of clock.
Set the minute value of clock.
Auto-operation
If tank is full of water, press the button ,
the indicator will stop flashing and you
When all settings finished, press the button
again and the indicator will be
extinguished. And then the unit will operate
automatically.
CAUTION
ON/OFF
Press button can
turn on or turn off the unit.
Preparation before running the unit.
When the unit is powered on for the first time, all
the indicators on the display will be displayed for 3
same time, then, display the nominal page. After
no operation for 1minute, all indicators will be
extinguished automatically except indicator
(flash slowly) and water temperature. Buzzer will
Confirm the tank is full of water or
not when indicator is flashing.

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25
26
Set Timer-TIME ON ONLY
Time on only:
automatically operate once between the setting
of the clock and the last 24 hours.
Cancel Timer-TIME ON ONLY
In the unlocked state, press the button for 3
canceled.
Set Timer-TIME ON & TIME OFF
Time on & Time off:
will automatically operate between the setting
minutes automatically.
Press the button to enter
value of the clock will flash slowly.
Pressing the button again or no
operation for 10 second, flashing will
setting.
Press the button again, confirm
the hour setting. Then the minute
value of clock will flash slowly.
Set the hour value of clock.
Set the minute value of clock.
Set the hour value of clock.
Set the minute value of clock.
27
28
Cancel Timer-TIME ON&TIME OFF
In the unlocked state, press the button for more
function will be canceled.
INCREASE/UP
If button is unlocked, corresponding value will
increase by pushing .
than 1s, temperature value will be increased
continuously;
continuously.
DECREASE/DOWN
If button is unlocked, corresponding value will
decrease by pushing .
than 1s, temperature value will be decreased
continuously;
●
continuously.
Press the button to enter
value of the clock will flash slowly.
Press the button again, confirm
the hour setting. Then the minute
value of clock will flash slowly.
Pressing the button again or no
operation for 10 second, flashing will
OFF setting.
Press the button to enter
value of the clock will flash slowly.
Pressing the button again or no
operation for 10 second, flashing will
setting.
Press the button again, confirm
the hour setting. Then the minute
value of clock will flash slowly.
Set the hour value of clock.
Set the minute value of clock.

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Installation & Ownerʻs Manual
6.3 Combination button
7. TROUBLE SHOOTING
7.1 Non-error tips
Q: Why canʼt the compressor start immediately after setting?
A: Unit will wait for 3min to balance the pressure of system before
starting compressor again, it is a self protection logic for the unit.
Q: Why is the temperature shown on the display panel sometimes
decrease while unit is running?
A: When the upper tank temperature is much higher than the bottom
part, upper part hot water will be mixed with the bottom cold
water which flows from inlet tap water, so that will decrease the
average temperature.
7.2 Self-protection of unit
1) Whenthe self-protectionmodeactivates, the system will be
stopped and start aself-check, and restart when the error is
resolved.
2) When the self-protection modeactivates, the buzzer will buzz
every second minute, the will flash and error code will be
shown at water temperature indicator. Press button for
1sec to stop buzz, but the and error code will not disappear
until the error is resolved.
Table.7-1
rrorPossible reason Solution
Cold water
outand
display screen
extinguished
No hot water
out
Water leakage Hydraulic pipelineoints
are not sealed well.
Badconnection
betweenpower supply
plugand socket;
Settingwater
temperature too low;
Temper sensor broken ;
PCB of indicator broken;
Compressor broken.
1. Plug in;
2. Setting water temp. higher;
3. Contact servicecenter.
Check water supply;
Waitingfor inlet water
pressure increase;
Openwater inlet valve.
Checkand resealall oints.
Water supply interrupted;
Cold water inlet pressure
too low (<0.15 Mpa);
Cold water inlet valve
closed.
1.
2.
3.
1.
2.
3.
1.
2.
3.
6.4 Auto-restart
If power is disconnected, the unit can remember some of the setting
parameters (On or Off state, operating mode, setting water tempera-
ture); when it re-powers on, the unit will be operated as per the
previous settings.
6.5 Button Auto Lock
When there is no operation of button for 1 minute, buttons will be
locked except Unlock button , Press for 3s, unlock buttons.
6.6 Screen Auto Lock
If there is no operation of button for 30s, screen back light will be
extinguished.Press any button will lighten the screen back light.
No. Icon Description
Clear error
code
Query
mode
+
+
Press the two buttons at
the same time to clear all
stored error & protect
codes, and the buzzer
will buzz one time.
Press the two buttons at
the same time for 1sec
to go into query mode.
Under query mode user
can check unit setting &
running parameters by
pressing
circularly. Press button
for 1s or no
button operation for 30s,
then quit query mode.
3) In the following circumstance, self-protection may happen:
If air inlet or outlet is blocked;
If the evaporator is covered with too much dust;
7.3 When an error occurs
1) If some cases of error happen, the unit will automatically shift to
technician to repair.
2) In case of serious errors, the unit will not start, please contact
authorised service agent.
3) For some errors, the buzzer will buzz 3times every other minute
and the will flash fast. Press for 1 sec to stop the buzzer
but the alarm icon will keep flashing.
7.4 Trouble shooting
7.4.1 Non-error Malfunction
3-minute Protection
With the power supplied, an immediate restart after the shutting down
will require a 3 minute wait to protect the compressor.
If self-protection occurs and the system stops, check :
When the power indicator lights up, whether the system has been
forced to run while startup requirement has not been met as above;
Defrosting
When the environment is humid and cold, the evaporated water may
freeze and the water-heating capacity thus decreases. When this
happens, the system will stop heating water to defrost, then restart
water-heating upon completion.
During defrosting, fan stops working, four-way valve reverses the flow
direction, and compressor keeps working.
The defrosting time varies from 3minutes to 10 minutes depending on
the ambient temperature and the frost.
Temperature Display
When the system stops, adecrease of water temperature is normal as
heat loss will occur. When it decreases to acertain point, the system
will restart automatically;
During water-heating, the displayed water temperature might still
decrease or not increase for aperiod of time because of the heat
exchange of the water. When the whole tank of water has reached the
set temperature, the system will stop automatically.14

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The diagnostic codes listed above are the most common. Ifadiagnostic code not listed above is displayed, contact
residential technical assistance referencing the number on the front of this manual.
NOTE
7.5 Error code shooting table
Table.7-2
Malfunction Description Corrective action
rrorof sensorT5L(lower water temperature sensor)
1
Maybe the connection betweensensorandPCB is
broken or sensor has beenbroken.
Contactaqualified person toservice the unit.
Tankand wired controller communication error
2The connection between controller andPCB is
broken orPCB has beenbroken.
vaporator temperature sensorT3 error
4The connection betweensensorandPCB is
broken or sensor has beenbroken.
Contactaqualified person toservice the unit.
Ambient temperature sensorT4 error
5
The connection betweensensorandPCB is
broken or sensor has beenbroken.
Contactaqualified person toservice the unit.
Compressor discharge temperature sensorTP error
6
The connection betweensensorandPCB is
broken or sensor has beenbroken.
Contactaqualified person toservice the unit.
8
Some wires have beenbroken or bad wiring
connection.
Contactaqualified person toservice the unit.
If PCB current_induction_circuit check the current
difference between L,N>14mA, system consider it as
"electricleakage error"
lectricleakage error
Compressor suction temperature sensorTH error
9
The connection betweensensorandPCB is
broken or sensor has beenbroken.
Contactaqualified person toservice the unit.
-heater open-circuit protection (I H(Current difference
-heater on & e-heater off )<1A)
Maybe the -heater has beenbroken or bad wiring
connection after repair.
P2
High discharge temperature protection
Tp>115℃,Protection active
Tp<90℃,Protection inactive
System blocked, air or water or low
refrigerant(leakage) insystem (after repair), water
temperature sensor malfunction, etc.
Contactaqualified person toservice the unit.
Compressoroverloaded protection (10 secsafter
compressor start up), Currentchecking starts ,
1)only compressor running, ifit is >7A , the
compressor will be stopped and protected.
2)Compressor+e-heater opend, ifit is >IH+7,the
compressor will be stopped and protected.
Compressor broken, system blocked,
air or water or too much refrigerant insystem (after
repair), water temperature sensor malfunction, etc.
℃
Whenthe ambient temp T4 is outof HeatPump
running range (5 43℃)HeatPump will stop, unit will
showLA on the position of clockon display until T4
back to(5 43 ).
It is normal, andnotnecessarytorepair.
Display
P8
P2
P4
LA

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8.2 Recommended regular maintenance table
Checking
Item
Checking
contentCheckingfrequency Action
1air filter
(inlet outlet) everymonth Clean the filter
2anode rod everyhalf yeareplace if required
3inner tank everyhalf year Clean the tank
4
5
e-heater everyhalf year Clean e-heater
Operate the
valve to ensure
that waterways
are clear.
If water doesn't flow freely when operating the
every year
Table.8-1
8. MAINTENANCE
8.1 Maintenance
1) Check the connection between power supply plug and socket
and ground wiring regularly;
2) In some cold areas (below 0℃), if the system will be stopped for
along time, all the water should be released in case of freezing
3)
regularlyto keep an efficient performance.
4) Check the anode every half year and change if required. For
more details, please contact the supplier or the service.
How to Change the anode
Turn off the power, and turn off the water inlet valve.
●Open hot water tap, and decrease the pressure of the inner
container.
Open the drain port, and release about 20L water.
Unscrew anode according to instruction.
Open cold water valve until hot water flows out, and turn off the
hot water tap.
How to Take Off The Air Filter remove screw from top cover.
Take the top cover,
and slide out the filter
counter clockwise
When installing the top cover please refer to the
direction of arrow, after assembling it should be line
up.
NOTE
5) Clean the air filter every year to maintain heating performance.
The method to dismantle the filter is: unscrew the air inlet ring,
take out the filter and clean it completely, finally, remount to
the unit. For unit with duct, remove duct first then follow above
instruction.

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9. SPECIFICATIONS
The test conditions:
℃
Water temperature from 15 up to 45℃.
Model
High-pressure Protector, Over-load Protector,
134a(0.8kg)
Protection
Compressor power
Outlet water temp.
Water side exchanger
Inlet Pipe Dia.
Outlet Pipe Dia.
Material
Motor power
Outlet Air Type
Net Weight
Surface heat exchanger
Hydrophilic aluminum fin, inner groove copper tube
40W
Air out from sideward
440W
2150W
0.7MPa
Water Tank Cap.
Water-heating Cap.
Mode
1500W
Rated input power /Current 2150W 9.3A
Power supply 220 ~ 50Hz
2150W
Hybrid Mode
1500W 2150W
Heat Pump
Drainpipe Dia.
DN20
DN20
DN20
DN20
90kg
190L
Water pipeline system
Air side
Dimension
Default 60℃，（38℃-70℃ ）
Table. 9-1
Fusible Link Type
Operation control