ACV HB300 Setup guide

EN, FR
Installation, usage and maintenance manual
Manuel de mise en service, d'opération et d'entretien
HB300
HB300C
Heat Pump Hot Water Tank
Ballon d'eau chaude à pompe à chaleur

1221112915 / 00
2
EN 2
Contents
Introduction 4.
1. General information 4.
1.1. Application area 4.
1.2. Instructions and technical norms 4.
1.3. Explanation of applied symbols 4.
1.4. Package content 5.
1.5. Transport and handling 5.
2. Technical features 5.
2.1. Operation principle 5.
2.2. Operation explanation 6.
2.3. Water heating methods 7.
2.4. Explanation of water heating operation 7.
2.5 Mode selection 7.
2.6. Construction features 8.
2.7. Name of parts 8.
2.8. Overall dimensions 9.
2.9. Control circuit diagram of heat pump water heater 9.
2.10. Summary table of technical data 10.
3. Useful recommendations (Usage and maintenance instructions for users) 11.
3.1. First installation 11.
3.2. Instructions and warranty 11.
3.3. Recommendations 11.
3.4. Safety precautions 12.
4. Usage instructions 13.
4.1. Control panel explanation 13.
4.2. Display explanation 13.
4.3. Operation 14.
4.4. Operation procedure 14.
4.5. Error code explanation 21.
5. Maintenance 22.
5.1. Planned preventive maintenance to be performed by the user 22.
5.2. Routine check of heat pump water heater 22.
5.3. Technical support 22.
5.4. Disposal of water heater 22.

EN 3
6. Useful recommendations ( Technical information for installing technicians) 23.
6.1. Qualification of installing technicians 23.
6.2. Usage of installation, usage and maintenance manual 23.
6.3. Check of heat pump water heater 23.
6.4. Safety precautions 23.
7. Putting into operation 25.
7.1. Placement of water heater 25.
7.2. Duct connection ways 28.
7.3. Pipeline connection 32.
7.4. Electric connection 33.
7.5. First start up 34.
8. Maintenance instructions (For personnel authorized to perform maintenance) 35.
8.1. Appliance discharge 35.
8.2. Storing and combined safety valve 35.
8.3. Active anode 35.
8.4. Scale removal 35.
8.5. Prevention of frost damages 35.
8.6. In case of indirect heating 35.
8.7. Air filter 36.
8.8. Shutdowns not caused by errors 36.
8.9. Errors and solutions 36.
8.10. Self-protective mechanisms of the appliance 36

EN 4
INTRODUCTION
This manual is for end users of heat pump water heater of types HB300 and HB300C (hereinafter
referred to as HB300(C) if both types are concerned) and building engineers performing installation. The
manual is an integrated and indispensable part of the appliance. Therefore, the user should carefully keep the
manual and hand it over to the new owners or users of the appliance.
In order to ensure adequate and safe usage of the appliance, both the installation technicians and the users of the
appliance should read manual instructions and safety precautions carefully as they contain important
information on appliance safety, putting into operation, usage and maintenance for users and installation
technicians, as well.
1. GENERAL INFORMATION
1.1. Application area
The appliance produces domestic hot water or hot water of similar usage at temperature under the
boiling point. For this aim, the appliance must be hydraulically connected to the domestic water pipeline.
Electric current is also required for the operation of the appliance. The usage of air ducts is optional and it will
be described later in details.
It is forbidden to use the appliance for purposes other than the pre-defined ones. Any other usage of the
appliance is considered to be improper and therefore forbidden. The appliance must not be used especially in
environments exposed to industrial cycles and / or corrosive or explosive materials.
The manufacturer and distributor shall take no responsibility for damages raised by inefficient
installation, improper or wrong usage, rationally not foreseen usage or incomplete or careless compliance of
manual instructions.
1.2. Instructions and technical norms
Persons with reduced physical, perceptive or mental abilities (including children) or persons without
complete knowledge and experience on the appliance are not permitted to use the appliance, except for the
person responsible for their safety ensures supervision or adequate information on the operation of the
appliance for them. Supervision of children is required to avoid that they play with the appliance.
The manufacturer is responsible for ensuring that the appliance complies with all construction
guidelines, regulations and requirements effective at the time of the first commercial marketing of the product.
The constructor, user and installation technician are exclusively responsible for knowledge and compliance of
regulations on the construction, installation, operation and maintenance of the appliance in their competency
areas. References on laws, requirements of technical descriptions used in this manual are for information only.
Newly implemented laws or modifications of efficient laws shall not be legally binding for the manufacturer
against third persons in any way.
1.3. Explanation of applied symbols
Concerning putting into operation of appliance and operation safety of the appliance, the following
symbols are used in order to underline the importance of warnings of danger:
Failure to observe a warning may result in serious injury or in death, in some cases.
Failure to observe a warning may result in serious injury or damage in the building, in the
plants or in the animals.
Compulsory compliance with general and specific safety instructions of the product.
Parts or points written after the expression “WARNING!” and/or written in bold type contain important
information or recommendation and it is indispensable to take them into consideration and to comply with
them.

EN 5
1.4. Package content
The appliance is transported in carton box with internal protective elements.
The package contains the following:
Installation, usage and maintenance manual 1 item
Y filter Rp3/4 1 item
Flexible conduit to discharge condensate water 1 item
Feet fixing 3 items
Drill frame 1 item
Wire installation rubber 1 item
1.5. Transport and handling
During product delivery, please check that there is no visible damage on the
external part of packaging. If the product seems to be damaged, please turn to the
delivery company with your complaint in no delay.
Similar to all equipment containing a compressor, the heat pump must be
stored and transported only in a standing position (see Figure 1.5.-1.)
WARNING!
The appliance must be transported, handled or stored in a vertical position
and it must not be inclined more than 45° (Figure 1.5.-2.). This appliance is very
heavy, it needs to be carried by 2 or more persons, otherwise it might cause
personal injury or appliance damage. If during any of the operations above, the
placement of the appliance needs to be different from the recommended position,
before the first start up of the appliance, please wait at least 3 hours starting from
the time when the appliance has been put into the proper vertical position and / or
into operation. This way, it is ensured that the lubricating oil working within the
cooling circuit is placed properly and compressor damage is avoided.
The packaged appliance can be handled by hand or by lift truck – please
follow the instructions printed on the carton box.
It is recommended to keep the appliance in the original packaging until it is
installed on the selected place, if possible, especially when construction work is
performed on the site.
During the removal of the package, please check that the appliance is intact and all
necessary parts are placed in the package. In case of any deficiency or missing
parts, please notify the contracted distributor within the deadline defined by law.
WARNING!
Due to potential danger, please keep packaging material (clips, plastic sacks, polystyrene foam)
away from children.
During handling or transportation of the appliance after its first start up, please keep warnings on
maximum inclination angle described above and ensure that all water has been discharged from the tank. If the
original packaging no longer exists, please provide protection to the appliance and its parts similar to the
original packaging.
2. TECHNICAL FEATURES
2.1. Operation principle
HB300(C) heat pump water heater is seemingly similar to traditional electric hot water tanks. During its
normal operation cycle, HB300(C) connected to household pipeline and electrical power system does not use as
much electric power for direct heating of water as the traditional electric hot water tank does, but rather, it uses
energy in a more rational and efficient way, reaching the same result with an energy use of less than 70% as
compared to the traditional electric hot water tank.
Heat pump is named by the fact that it is able to transfer heat from a heat source of lower temperature to
a heat source of higher temperature, which means it turns natural flow of heat, which is transferred from a heat
45°
Figure 1.5.-1.
Figure 1.5.-2.

source of higher temperature to a heat source of lower temperature. The application of the heat pump brings the
benefit that it is able to transfer more energy (in form of heat) than the energy it takes for its operation (in form
EN 6
of electric power). This way, heat pump is able to extract energy from heat sources existing in its environment
without “expenditure”, depending on the type and availability of the heat sources.
HB300(C) heat pump water heater extracts heat from stuffy internal air to be refreshed, thus it adds to
the efficiency increase of water heating. It is possible to select among several different configurations to use
environmental air, which provides multilateral application of the appliance besides different operational
conditions.
HB300(C) heat pump water heater has been planned and manufactured pursuant to specifications on the
energy performance of buildings. The appliance ensures more rational energy use and leads to savings in the
operational costs. As opposed to other alternative systems used to produce sanitary hot water, heat extraction
from free energy sources definitely reduces environmental effects of emissions into the atmosphere.
2.2. Operation explanation
According to the facts mentioned above, the “energetic capacity” of heat
pump is based on heat transfer through heat extraction from free source (in this
case, it is the environmental air) with lower temperature than the material to be
heated (in this case, it is the water in the tank of the water heater). Electric
power is required for the operation of the compressor (that leads to change of
state of matter of the cooling fluid within the cooling circuit), thus for the
transfer of heat energy. Cooling fluid passes along a closed hydraulic circuit
where the fluid changes into liquid or gaseous state of matter in connection with
its temperature and pressure. The main elements of the hydraulic circuit (Figure
2.2-1) are the following:
1
– compressor, which ensures cycle running through increasing the
pressure and the temperature of the cooling fluid (which has a gaseous state of
matter in this cycle).
2– first heat exchanger located in the water tank of the water heater:
heat exchange between the cooling fluid and the sanitary water to be heated up
is produced on its surface. As in this phase, the state of matter of the warm
cooling fluid changes and it condenses into liquid while transferring its heat to
the water, this heat exchanger is defined as condenser.
3– expansion valve: it is an equipment through which the cooling fluid
passes just when its pressure and temperature are reducing, following the
expansion of the liquid perceivably as a result of pipe cross-sectional area
increase above the valve.
4– second heat exchanger located in the upper part of the water heater,
which surface has been increased by fins. The second heat exchanger performs heat exchange between the
cooling fluid and the environmental air drifted artificially by either the free source or by a special fan in a
proper way. As in this phase, the cooling fluid evaporates and extracts heat from the environmental air, this heat
exchanger is defined as evaporator.
As heat energy is able to flow from a higher temperature level to a lower temperature level exclusively,
the temperature of the cooling agent located in the evaporator (4) has to be lower than the environmental air
acting as free source, in the same time, in order to transfer heat, the cooling agent located in the condenser (2)
has to possess a temperature higher than the temperature of the water to be heated in the tank.
The temperature difference within the heat pump circuit is produced by the compressor (1) located
between the evaporator (4) and the condenser (2) and by the expansion valve (3), due to physical features of the
cooling fluid.
The efficiency of the heat pump circuit can be measured by the coefficient of performance
(COP). COP is the ration of incoming energy into the appliance (in this case, it is the heat transferred to the
water to be heated) to the electric power used (by the compressor and the supporting equipment of the
appliance). COP may change depending from the type of the heat pump and the related operational
circumstances. A value of 3 for COP means, for example that the heat pump transfers 3 kWh to the material to
Figure 2.2.-1.

be heated after 1 kWh electric power used, from which 2 kWh is extracted from the free source. The rated COP
values of HB300(C) heat pump water heater are listed in table 2.10.1 containing technical data.
The temperatures of typical heat pump cycles, in connection with features of the cooling fluid and the
free source ensure heating of sanitary water located in the aluminium pipe heat exchanger placed outside of
EN 7
HB300(C) heat pump water heater up to a temperature of max. 60°C, besides normal usage conditions. As
HB300(C) heat pump water heater has been equipped with a supplementary pipe radiator that provides further
options: quicker obtaining of operation with full capacity through combination of heat pump mode and pipe
radiator mode up to a temperature of max. 60°C that may be used after running of antibacterial protective
cycles. In order to ensure rational energy use during the operation of the hot water tank, visual indicators call
the attention of the user on the fact that the appliance is not operated in the most efficient way if the pipe
radiator is active.
2.3. Water heating methods
The appliance (in case of HB300C type) integrates heating elements that contain a heat pump, an electric pipe
radiator and a heat exchange pipe coil. Heating elements do not operate all the three in the same time. Hot water
tanks of HB300C type can be operated from several different energy sources: indirectly from solar energy, or
gas-based, coal-based or other based energy carriers, furthermore, auxiliary electric heating provided by
appliances of HB300(C) type is controlled by the heat pump unit.
This appliance possesses two temperature-sensors that are placed in the upper flare located in the
closing cover and in the lower flare. The sensor placed in the upper flare measures upper temperature and this
number is displayed by the Water temp indicator, while the sensor placed in the lower flare monitors the lower
temperature, which serves as input data for switch on/ off, but this is not displayed at all.
1.) Economy Mode:
In this mode, it is the heat pump that is working, not the electric heater as a result of pre-set water
temperature.
(Thewateroutlettemperatureisbetween38~60°C,theoperationenvironmenttemperatureisbetween-7~43°C)
2.) Hybrid Mode:
In this mode, the equipment is sharing its operation capabilities between electric heating and heat pump,
based on the temperature of the water tank.
(Thewateroutlettemperatureisbetween38~60°C,theoperationenvironmenttemperatureisbetween-30~43°C)
3.) E-heater Mode:
In this mode, themotors of the compressor and the fan are not working, only the electric heater is working. This time, only water
locatedintheupperpartofthetankisheated,whichmeans.approximately100l.
(Thewateroutlettemperatureisbetween38~60°C,theoperationenvironmenttemperatureisbetween-30~43°C)
a) Defreezing through water heating
In case of Economy Mode and Hybrid Mode, if the evaporating steam freezes in cold environment, the
appliance defreezes it automatically, to ensure efficient performance (3~10 min).
b) External environmental temperature
The operation temperature of the appliance should be within the interval -30~43 °C and the operation
temperatures of the modes are described below in details.
2.4. Explanation of water heating operation
1) Economy Mode: -7~43°
°°
°C
This mode is recommended when the external environmental temperature is between -7~43°C . If the
external environmental temperature falls under the temperature of -7°C, energy efficiency becomes low,
evidently, thus it is recommended to use E-heating mode under these circumstances.
2) Hybrid Mode: -30~43°
°°
°C
3) E-heater Mode: -30~43°
°°
°C
In each case, only water located in the upper part of the tank is heated, which means. approximately 100
2.5 Mode selection
As different modes have been developed to serve different needs, it is recommended to consider the following: .
⋅Economy Mode:-7~43°C,
In case of continuous hot water need under 300 L (60 °C);
⋅Hybrid Mode: -30~43°C,

In case of continuous hot water need between 300 L (60°C).
⋅E--heater Mode: -30~43°C,
In case of continuous hot water need under 100 L (60°C).
EN 8
2.6 Construction features
HB300(C) heat pump water heater is basically composed of an upper part (Figure 2.7.-1.) containing
heat pump equipment and a lower part (Figure 2.7.-2.) containing the storage tank. The storage tank of the
sanitary hot water- having a volume of – is covered by an enamel coating internally and by a thick
polyurethane insulation layer having large efficiency externally, and the latter is covered by plastic surface of
the appliance. The pipe radiator, controlling indicator anode electrics and magnesium indicator anode located
on the closing cover are placed on a horizontal axle common with the closing cover.
The condensate water discharge pipe branch is located in the rear part of the circle-shaped tray above.
The control panel equipped with display is located in the front part. All the other parts of the heat pump circuit
are located above the storage tank according to a precisely planned order, which produces optimal operation,
reduced vibration and noise emission.
The following parts are placed under an easily accessible and adequately insulated plastic coverage:
compressor, thermostatic expansion valve, evaporator, fan ensuring adequate air flow and all the other parts
displayed on Figure 2.7.-1.
2.7. Name of parts
Figure 2.7.-1.
Air Outlet
Filter
Air Inlet
Evaporator
Top cover
Electric control box
Compressor
Front Cover
Display
Junction Box Cover
Fan Assy
Rear Cover
Junction Box
OUTSIDE USE

Figure 2.7-2.
EN 9
REMARK
All the figures in this manual are for explanatory purpose only. They may be slightly different from the
heat pump water heater You have purchased (depending on product model). The actual shape shall prevail.
2.8. Overall dimensions
Figure 2.8-1.
2.9. Control circuit diagram of heat pump water heater
Heat pump system
Electric heat cover Heating agent inlet Rp3/4
Circulation pipe branch connection G3/4
Cold water pipe branch connection G3/4
Heating agent outlet Rp3/4
Heating agent outlet Rp3/4
Hot water pipe branch connection G3/4
Heating agent inlet Rp3/4
Hot water pipe branch connection G3/4
Circulation pipe branch connection G3/4
Heating agent inlet Rp3/4

Figure 2.9-1
EN 10
2.10. Summary table of technical data
QUALITY CERTIFICATION LABEL-TECHNICAL DATA
Type HB300 HB300C
Sizes: diameter/height/depth Ø661/1930/720
Water pipeline connection G3/4
Circulation pipe branch connection G3/4
Rated volume 300 l 287
Rated operation pressure 0,6 MPa
Safety valve max. opening pressure 0,7 MPa
Largest water supply pressure 0,525 MPa
Smallest required network pressure 0,01 MPa
Standby energy use at 60
o
C 2500 Wh/24h
Weight 124 kg 141 kg
Pipe coal
Pipe coal connection Rp3/4
Pipe coal heatable volume 287 l
Pipe coal surface - 1,5 m
2
Pipe coal flow resistance 130 mbar
Top performance 510 l/the first 10
minutes
Durable performance 1100 l/h
Durable performance 45 kW
Heat pump
Type air (indoor)
Air duct connection (inlet/outlet) Ø190 mm
Condenser safety heat exchanger
GWP / Cooling agent / quantity 1300 / R134a / 1100 g
Max. Power Consumption 1200W
Average Power Consumption 850W
Air flow ~500m
3
/h
Reachable static pressure 80 Pa
External static pressure range where the appliance has been examined 1013 – 1050 hPa
Max. suction side pressure 1,0 MPa
Max. blow side pressure 2,5 MPa

Minimum space required for operation (in case of operation without air duct 20 m
3
Operation temperature range -7 - +43
o
C
Max. water temperature 60
o
C
COP 15/10-45
o
C ≥3,5
Noise level 48 dB(A)
Type of outlet air Air support flowing vertically upward
Electric heating
Heatable volume 100 l
Voltage/frequency L/N/PE 230V~ / 50Hz
Fuse 5A/250V~(T)
Rated heating performance 1800W
Largest electric power consumption 16 A
Heating time 3,5 h
Max. water temperature 60
o
C
Min. Water temperature 10
o
C
Others
Heat insulation/thickness Freon free PUR insulation / 50 mm
Tank Enamelled steel sheet
Pipe coal Enamelled steel pipe
Corrosion protection Enamel + active anode
Active anode maintenance Anode consumption display
Built-in controller Electric heating and temperature controlling device
EN 11
Electric wiring Fixed
Protection degree IPX4
Touch protection to be applied Touch protection class I.
It can be connected to electric system supplied with protective earthing as defined in Hungarian Standard MSZ 2364.
Regulations on the product: (Hungarian Standards) MSZ EN 60335-1
MSZ EN 60335-2-21
MSZ EN 14511-3
Storage and transportation requirements (Hungarian Standards) MSZ IEC 721-3-1 IE12
MSZ IEC 721-3-2 IE22
Quality certification CE indication
Quality Ist class
Table 2.10.-1.
HAJDU Hajdúsági Industrial Closed Company Limited by Shares (HAJDU Hajdúsági Iparművek Zrt) as
manufacturing company hereby certifies that the appliance comply with the technical features described in the
quality certification label.
USAGE AND MAINTENANCE INSTRUCTIONS FOR THE USER
Thank you very much for purchasing our product.
We hope that the appliance fulfils all expectations and provides the best possible service for You
continuously, besides maximum energy saving.
Before using your appliance, please, read this manual carefully and keep it for future reference.
3. USEFUL RECOMMENDATIONS
3.1. First installation
WARNING !
Putting into operation and first start up of the appliance can only be performed by a technician
according to all related effective regulations or legal requirements or any requirements defined by local
authorities and public health organizations.
If the water heater to be installed does not simply replace an existing appliance but it represents
part of renovation of an existing hydraulic system or a new hydraulic system, the company installing the
water heater shall be obliged to issue a compliance statement for the
buyer, certifying compliance with all effective regulations and specifications after finishing
installation of the appliance. In both cases, the company performing installation has to execute safety and
operation checks on the entire system.

Before starting up the hot water tank, please check that the installing technician has performed all
required operations of installation. Please ensure that You have properly understood the information provided
by the installing technician on how to use the hot water tank and how to perform the operations on the
appliance.
3.2. Instructions and warranty
The manual is an integrated and indispensable part of the appliance. Do not remove the data label on
the appliance for any reason as these data may be required for any possible future reparations.
Please, read the warranty document related to the appliance carefully. This document contains
specifications regulating warranty.
3.3. Recommendations
In case of failure and /or defective operation, please do not try to search the error and correct it, rather,
switch the appliance off and turn to our service. In case of reparation, original spare parts are to be used
exclusively, and any type of reparation work can only be performed by a qualified technician. Failure to
consider these recommendations may endanger the safety of the appliance and it invalidates the responsibility
undertaken by the manufacturer.
If the appliance is not used for a longer period, it is recommended to perform the following:
- disconnect the appliance from the electric power system in a way that if there is a switch between the
appliance and the power system, then turn the switch into “OFF” position.
- close all the faucets of the water pipeline of the household
EN 12
WARNING!
It is recommended to discharge water from the appliance if it is not used and it is placed in a
location that is exposed to frost. This operation can only be performed by a qualified technician.
WARNING!
Running hot water with temperature above 50 °C may cause serious burn marks. The maximum
water temperature displayed on the indicator is 60 °C, which value can be actually higher than that in
case of defective operation. Children, disabled persons and elder persons are highly exposed to burn
marks. It is therefore recommended to connect a thermostatic mixing valve to the water outlet pipe of the
appliance.
3.4. Safety precautions
The explanation of the symbols used in the table below is described in details in point 1.3, chapter
GENERAL INFORMATION.
Warning Danger
1.
Do not perform any operation that
causes removal of the appliance
from its operational place.
Danger of electric shock caused by touching the parts
under power.
Flood caused by water leaking from disconnected pipes.
2.
Do not leave any object on the
appliance.
Personal injuries caused by falling objects due to
vibration effect.
Damage of the appliance or objects under the
appliance caused by falling objects due to vibration
effect.
3.
Do not climb onto the appliance.
Personal injuries caused by fall over of the appliance.
Damage of the appliance or objects under the
appliance caused by fall over of the appliance from its
mounted place.
4.
Do not perform any operation that
requires opening the appliance.
Electric shock caused by touching the parts under
power. Burn marks caused by overheated parts and
injuries caused by sharp edges or salients.

5.
Do not cause damage in the feeder
wire.
Electric shock caused by uninsulated wires under
power.
6.
During cleaning the appliance, do
not step on chair, table, ladder or
any other instable support.
Personal injury cased by fall down or by accidental
closing of the standing ladder.
7.
Before cleaning, the appliance
always has to be switched off and
the external switch has to be
turned into “OFF” position.
Electric shock caused by touching the parts under
power.
8.
Do not use the appliance for
purposes other than the normal
household operation.
Damage of the appliance caused by operational
overcharge. Damages caused by improper usage of
the objects.
9.
Neither children, nor persons
without professional experience
can operate the appliance.
Damage of the appliance caused by improper usage.
10.
Do not use pesticides, solvents or
aggressive cleaning supplies to
clean the appliance.
Damages of plastic parts.
EN 13
4. USAGE INSTRUCTIONS
WARNING!
Please follow the general warnings and safety precautions listed in the previous chapter and
please comply with them strictly.
WARNING!
Any operations other than the ones listed here should be performed by qualified technician.
4.1. Control panel explanation
4.2. Display explanation
Display
Operation
1 2 3 4

1 HIGH TEMP indicator: When the setting temperature exceeds 50
°
C, it lights up to remind you that the
outlet temperature is too high for direct spray.
2
FILL WATER
indicator: When the power supply is turned on, it lights up to remind you to re-affuse
water.
3
ALARM
indicator: it flashes continuously at malfunctioning or protection time. .
4
TEMP
-
SET
indicator: it shows the setting temperature at blank during screen protection. Codes are
shown at malfunctioning or protection time.
5
LOCK
indicator: when the user interface is locked, it always lights.
6 Water temp. indicator: when the actual water temperature exceeds 60
°
C, it lights up.
7 Water temp. indicator: when the actual water temperature exceeds 50
°
C, it lights up.
8 Water temp. indicator: when the actual water temperature exceeds 40
°
C, it lights up.
9
OUTLET TEMP
indicator: it displays water temperature of the upper part of the tank, which can be
used. It always lights.
10
TIMER CONFLICT
indicator: When the temperature you set through Wired Controller conflicts with
that through User Interface, it lights up.
11
TIME OFF
indicator: It will light up when timing off mode is set, blanks during screen protection.
12
TIME ON
indicator: It will light up when timing on mode is set, blanks during screen protection.
13
CLOCK
indicator: It displays present time, it blanks during screen protection.
14
E_HEATER
MODE
indicator: When the user sets the E-heating Mode, it lights up.
EN 14
15
HYBRID MODE
indicator: When the user sets the Hybrid Mode, it lights up.
16
ECONOMY MODE
indicator: When the user sets the Economy Mode, it lights up.
. 4.3. Operation
4.4. Operation procedure
Preparation before running the appliance
When you run the appliance for the first time, all the indicators on the User Interface will light up for 3
seconds, and the buzzer will “didi” ring twice at the same time, and then display is lit up. After no operation for
15
16 5
8
7
6
14
ON/OFF
key, used to turn the
appliance on or off
CANCEL
key, used
to cancel time and
clock
MODE
key, used to set
different modes
UP
key, used to add
time or temperature
CLOCK
key, used to
set time
TIME OFF
key, used
to set the OFF timer
DOWN
key, used to
reduce time or
temperature
TIME ON
key, used to
set the ON timer
12 11 10 9
13

1 minute, all indicators will go out automatically, except Water fill indicator which is flashing and the temp.
indicator which is lighting.
When the tank is full, please press the ON\OFF key, then the Water fill indicator will stop flashing and you
can continue to function other settings. When all settings are finished, please press the ON\OFF key again and
the Water fill indicator will go out. And then run the appliance.
When the appliance is running, if there is no operation or malfunction for 20s, the backlight of the display
will go out automatically except the operation model, the outlet temp, the lock indicator. If there is no operation
for 1 minute, the appliance will lock automatically, but the lock indicator would be right all time.
Lock and Unlock
In order to prevent wrong operation, a special lock function has been designed. If there is no operation for 1
minute, the appliance will be locked automatically, and lock indicator will be displayed. When the appliance is
locked, no keys can be operated.
Unlock:
Clock set
The clock is for a 24-hour system and the initial time is 00:00. To make a better use of this appliance, it is
recommended to set the time for accurate local time. Every time powered off, the clock will be reset to the
initial time 00:00.
EN 15
Method for time set:
At the locking status of the display, long press the
“CANCEL”
key to remove it. At the screen protection of the display, press
any key to activate the display, and then long press the
“CANCEL” key to remove it. After removal of the locking
mode, the Lock indicator will blank out and all keys could be
Press the
CLOCK
key, the minute of the the minute
digit of the clock on the display starts flashing slowly.
Press the
„UP”
and
„D
OWN”
key, you can adjust the
minute.

EN 16
Mode selection
The appliance is enhanced with three operation modes: Economy Mode, Hybrid Mode and E-heater Mode.
a) Economy Mode: the appliance heats water only by compressor drive according to heat pump principle.
It is used when the ambient temperature is high (15°C ≤).
b) Hybrid Mode: the appliance heats water basically by heat pump, but when the ambient temperature is
low (15°C ≥), the electric heater also starts to operate.
c) E-heater Mode: The appliance heats water only by electric heater. It is used when the ambient
temperature is very low.
By default, the appliance operates in Hybrid Mode.
Mode Change:
Temperature set
Press the
CLOCK
key again, the minute digit stops flashing
while the hour digit starts flashing.
Press the
„UP”
and
„DOWN”
key, you can adjust the hour
to set the clock.
Press the
„CLOCK”
key again and wait about 10 seconds,
flashing stops and CLOCK SET is finished.
Press the
MODE
key, operation mode will be shifted among the
three modes in a cycle, meanwhile the corresponding indicator on
the display will light up.

The Temp displayed is the water temperature in the upper part of the tank. Default is 55°C and the
Economy Mode setting range is 38~60°C, while the Hybrid and E-heater Mode setting range is also the
same, 38~60°C.
Method for set
Timer
The user can set up a running start time and a stop time specifically by the Timer function. The least
number set for the time is ten minutes.
Time on: The user can set up a start time by this. The appliance will auto run one time between the set time
and 24:00 on the same day.
EN 17
Method for set
Press
„UP”
and
„DOWN”
key, you can increase or decrease
water temperature.
When the set temperature is higher than 50
°
C, the HIGH
TEMP indicator will light up.
Press „UP” and „DOWN” key, you can adjust the minute.
Press the
TIME ON
key, the minute digit of the clock ont he
display starts flashing slowly.

Cancel:
EN 18
Time on and Time off : Users can set up a running start time and a stop time. When the start time is earlier than
the stop time, the appliance will run between the set time. When the start time is later than the stop time, the
appliance will run between the start time today and the stop time next day, when the users set up a running start
time and a stop time at the same time, the stop time will be delayed by ten minutes automatically.
Method for set
Press „UP” and „DOWN” key, you can adjust the hour.
Press the
TIME ON
key again, the minute digit stops
flashing, and the hour digit starts.
Press the
TIME ON
key again and wait about 10s, flashing
stops and ON TIMER set is finished.
In the unlocked state, press the
CANCEL
key for 1 second
and the TIME ON function will be cancelled.
Press the
TIME ON
key, the minute digit of the clock ont he
display starts flashing slowly.

EN 19
Press „UP” and „DOWN” key, you can adjust the hour.
Press the
„UP”
and
„DOWN
”
key, you can adjust the
minute.
Press the
„UP”
and
„DOWN”
key, you can adjust the
minute.
Press the
TIME ON
key again, the minute digit stops
flashing and the hour digit starts flashing.
Press the
TIME OFF
key, the minute digit ont he display
starts flashing slowly.

Cancel:
REMARK
Time on and Time off functions can not be set to the same time. If they are the same, the stop time will be
delayed by 10 minutes automatically. For example, if Time on and Time off are set to 1:00 at the same time,
the stop time will be adjusted to 1:10 automatically.
The Time off function can not be used alone. The key can be used only after Time on has been set. The user
can press the on\off key manually beyond the Timer range.
EN 20
Power On and Power Off: Press Power On/Power Off button when the setting above has been finished
and the system will run according to the setting. And simply press the same button to stop it.
Press the „UP” and „DOWN” key, you can adjust the hour.
Press the
TIME OFF
key again, the minute digit stops
flashing and the hour digit starts flashing.
Stop operation for about 10 seconds, flashing stops and
TIME
ON + TIME OFF set is finished.
In the unlocked state, press the
CANCEL
key for 1 second, the
TIME ON + TIME OFF functions will be cancelled.