HTW VAWS2 Sanitary Water Heat Pump Instruction Manual
- June 22, 2024
- HTW
Table of Contents
HTW VAWS2 Sanitary Water Heat Pump
Product Information
Specifications:
- Model: VAWS2
- Available Models: HTW-ATS-200SR290A, HTW-ATS-300SR290A
- Refrigerant: Flammable refrigerant
- Capacity: 80L, 100L, 120L, 200L, 250L, 300L, 500L
Product Usage Instructions
1. Safety Instructions:
Before using the product, please read and follow these safety precautions:
- Avoid placing the unit where there is a risk of flammable gas leaks.
- Avoid touching the fan or evaporator with fingers or other body parts.
2. Installation:
Install the unit according to the provided installation manual. Ensure the unit is placed in a suitable location with proper ventilation.
3. Operation:
Follow these steps to operate the unit:
- Press the power button to turn on the heat pump unit.
- Use the temperature adjustment bar to set the desired temperature.
- Refer to the manual for setting timers and other functions.
4. Maintenance:
Regularly check for any malfunctions indicated by error icons. Keep the unit clean and ensure proper water filling and draining.
FAQs
Q: What should I do if I encounter an error icon?
A: If you see an error icon on the unit, refer to the user manual for troubleshooting steps. If the issue persists, contact service personnel for assistance.
Q: How do I adjust the temperature settings?
A: Use the temperature adjustment bar on the unit to set the desired temperature. Move the slider left or right to adjust accordingly.
48
WARNING
This symbol shows that this appliance used a flammable refrigerant. If the
refrigerant is leaked and exposed to an external ignition source, there is a
risk
of fire.
CAUTION
This symbol shows that the operation manual should be read carefully.
CAUTION
This symbol shows that information is available such as the operating manual or installation manual.
CAUTION
This symbol shows that a service personnel should be handling this equipment with reference to the installation manual.
Safety instructions
In order to prevent personal injury or property damage to users and others,
please be sure to follow the following instructions. If ignoring the prompt or
wrong operation may cause injury or damage. The unit shall be installed in
compliance with local laws, regulations and standards. Check the voltage and
frequency. This machine is only used for grounding socket., must be reliably
connected to the ground.
The following security precautions need to be taken into account
– Please read the following warnings before installing. – Please be sure to
check the details that need attention, which includes many contents related to
security issues. – After reading the installation instructions, be sure to
keep them for future reference.
Warning
This appliance can be used by children aged from 8 years and above and persons
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance
shall not be made by children without supervision. Tear apart and throw away
plastic packaging bags so that children will not play with them. Children
playing with plastic bags face danger of death by suffocation. Safely dispose
of packing materials such as nails and other metal or wood parts that could
cause injuries Ensure that the installation of Indoor and outdoor unit is safe
and reliable. If the machine is not installed firmly or not properly, it will
cause damage. The minimum support weight required for installation is 20g/mm2,
and full consideration should be given to strong winds, hurricanes or
earthquakes. When installing the machine in a closed area or limited space,
please consider the size and ventilation of the room to prevent suffocation
due to refrigerant leakage.
· That the appliance shall be disconnected from its power source during
service and when replacing parts and, if that the removal of the plug is
foreseen, it shall be clearly indicated that the removal of the plug has to be
such that an operator can check from any of the points to which he has access
that the plug remains removed.
· If this is not possible, due to the construction of the appliance or its
installation, a disconnection with a locking system in the isolated position
shall be provided.
· Improper installation of equipment or accessories may result in electric
shock, short- circuit, leakage, fire or other damage to the equipment. Be sure
to only use accessories made by the supplier, which are specifically designed
for the equipment and make sure to get installation done by a professional.
Caution: Risk of fire flammable materials
49
READ THIS MANUAL CAREFULLY BEFORE COMMISSIONING THE UNIT. Don’t throw it away
SAVE your files for future reference. BEFORE THE UNIT, make sure that the
installation has been carried out correctly by a specialized shop. If you are
unsure ABOUT ITS OPERATION, contact your dealer for advice and information.
Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and= repair requiring the assistance of other
skilled personnel shallbe carried out under the supervision of= the person
competent in the use offlammable refrigerants.
All the activities described in this manual must be carried out by a
licensedtechnician. Be sure to wear adequate personal protection equipment
such as gloves and safety glasses while installation the unit or carrying out
maintenance activities.
The appliance shall be installed in accordance with national wiring
regulations. Use a specific wire and fix it on the terminal block (so that the
connection can avoidthe pressure of
the wire from being applied to the component. Incorrect wiring can cause fire.
Make certain that all electrical work is carried out by qualified personnel
according tothe local laws
and regulations and this manual using a separate circuit. Insufficient
capacity of the power supply= circuit or improper electrical construction may
lead to electricshocks or fire. Be sure to install a ground fault circuit
interrupter according to local laws andregulations. Failure to= install a
ground fault circuit interrupter may cause electric shocks andfire. During
installation or repair of the unit, please do not unplug or plug in the
powersupply, and do not= leave the unit unattended (It may cause fire or
electric shock) Do not touch or operate the unit when your hands are wet.(It
may cause fire orelectric shock) Before touching electric terminal parts, turn
off power switch. When service panels are removed, live parts can be easily
touched by accident. Do not touch water pipes during and immediately after
operation as the pipes may be hot and could= burn your hands. Toavoid injury,
give the piping time to return to normal temperature or be sure to=wear
protective gloves. Before touching electrical parts, turn off all applicable
power to the unit.
After completing the installation work, check to make sure that there is no
refrigerant leakage. Never directly touch any leaking refrigerant and the
refrigerant pipes.
It could cause severe frostbite. During and immediately after operation as the
refrigerant pipes may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping, compressor and other
refrigerant cycle parts. Burns or frostbite are possible if you touch the
refrigerant pipes. To avoid injury, give the pipes time to return to normal
temperature or, if you must touch them, be sure to wear protective gloves.
Do not touch the internal parts (pump, backup heater, etc.) during and
immediately after operation.
Touching the internal parts can cause burns. To avoid injury, give the
internal parts time to return to normal temperature or, if you must touch
them, be sure to wear protective gloves. Do not pierce or burn. Do not place
heaters or other electrical appliances near the power cord
(It may cause fire or electric shock) Please note that water cannot be poured
directly from the unit. Do not let
waterenter · electrical components. (It may cause fire or electric shock) If
the unit is not used for a long time, it is recommended not to turn off the
power supply. If the power is turned off, the protection devices of some
products · as (such water pump anti lock and anti freezing device) will not be
available.
Cautions
Please carry out drainage system and the pipeline work according to the
instructions.
If the drainage system or pipeline is defective, water leakage may occur, and
it should be dealt with immediately to avoid getting other household products
wet and damaged.
50
Install the power wire at least 3 feet (1 meter) away from televisions or
radios toprevent interference or noise. (Depending on the radio waves, a
distance of 3 feet(1 meter) may not be sufficient to eliminate the noise.)
Please do not clean the unit when the power is on. When cleaning the unit,
pleaseturn off the power after shutting down. Otherwise, you may be injured by
a high- speed fan or electric shock.
Do not use means to accelerate the defrosting process or to clean, other
thanthose recommended by the manufacturer.
Do not wash the unit. This may cause electric shocks or fire. Do not install
the unit in the following places:
– Where there is mist of mineral oil, oil spray or vapors. Plastic parts may
deteriorate,and cause them to come loose or water to leak. – Where corrosive
gases (such as sulfurous acid gas) are produced. Where corrosion of copper
pipes or soldered parts may cause refrigerant to leak. – Where there is
machinery which emits electromagnetic waves. Electromagnetic waves can disturb
the control system and cause equipment malfunction. – Where flammable gases
may leak, where carbon fiber or ignitable dust is suspended in the air or
where volatile flammables such as paint thinner or gasoline are handled. These
types of gases might cause a fire. – Where the air contains high levels of
salt such as near the ocean. – Where voltage fluctuates a lot, such as in
factories. – In vehicles or vessels. – Where acidic or alkaline vapors are
present.
This marking indicates that this product should not be disposed with other
household wastes throughout the EU. To prevent possible harm to the
environment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To return
your used device, please use the return and collection systems or contact the
retailer where the product was purchased. They can take this product for
environmental safe recycling.
Collection of such waste separately for special treatment is necessary. Do not
dispose of electrical appliances as municipal waste, use separate collection
facilities. Contact your local government for information regarding the
collection systems available. If electrical appliances are disposed of in
landfills or dumps, hazardous substance can leak into the groundwater and get
into the food chain, damaging your health and well-being.
Confirm the safety of the installation area ( walls, floors, etc. ) without
hiddendangers such as water, electricity, and gas before wiring/pipes.
Before installation , check whether the user’s power supply meets the
electricalinstallation requirements of unit ( including reliable grounding ,
leakage , andwire diameter electrical load, etc. ). If the electrical
installation requirements ofthe product are not met, the installation of the
product is prohibited until theproduct is rectified.
Product installation should be fixed firmly, Take reinforcement measures,
whennecessary. When the unit has problems or peculiar smell, please do not
continue to operatethe unit. Turn off the power immediately and stop the
machine. Otherwise, electric shock or fire may be caused.
Please be careful when the product is not packaged or installed. Harp edges
can cut people. Take special care of the edges and fins of the heat exchanger.
After installation or maintenance, please check whether the refrigerant or
refrigerant will leak.
If the refrigerant is insufficient, the unit will not work normally. He
installation of external and internal machines must be flat and firm.
Avoid vibration and water leakage. Do not put your fingers into the fan and
evaporator.
High speed fans can cause serious injury. In order to avoid the danger of
inadvertently resetting the thermal breaker, the
equipment cannot use external switching devices, such as timers, or be
connected to a circuit that is often open or closed.
51
This device is not designed for people with weak physical or mental
behaviorability (including children), as well as people who have no use
experience and donot understand the heating system. Unless it is used under
the safety guidanceand supervision of the person in charge, or has received
training on the use of this equipment. Children should use the equipment under
the supervision of adults to ensure their safe use of the equipment. If the
power cord is damaged, it must be replaced by the manufacturer or itsservice
agent or the same professional person to avoid danger. The cut-off deviceshall
be incorporated into the fixed wiring, and the contact spacing gap of
eacheffective conductor shall be at least 3mm.
Special requirements for R290
Do NOT have refrigerant leakage and open flame. Be aware that the R290
refrigerant does NOT contain an odour. The appliance shall be stored so as to
prevent mechanical damage and in a well-ventilated
room without continuously operating ignition sources (example:open flames,an
operating· gas appliance) and the room size corresponds to the room area as
specified for operation. Do NOT re-use joints which have been used already.
Joints made in installation between parts of refrigerant system shall be
accessible for maintenance purposes. Make sure
installation,servicing,maintenance and repair comply with instructions and
with applicable legislation (for example national gas regulation) and are
executed only by· authorized persons. Pipework should be protected from
physical damage.
Installation of pipework shall be kept to a minimum.
About hydrocarbon refrigerant
– This air-conditioning unit contains hydrocarbon refrigerant. For specific
information on the type of gas and the amount, please refer to the relevant
label on the unit itself. Compliance with national gas regulations shall be
observed.
– Installation, service, maintenance and repair of this unit must be performed
by a certified technician. – Product installation and recycling must be
performed by a certified technician.
– If the system has a leak-detection system installed, it must be checked for
leaks at least every 12=months. When the unit is checked for leaks, proper
record-keeping of all checks is strongly=recommended. Frequency of Refrigerant
Leakage Checks
– For unit that contains fluoridated greenhouse gases in quantities of 5
tonnes of CO2equivalent or more,but of less than 50 tonnes of CO2
equivalent,at least every 12 months, or where a leakage detection system is
installed, at least every 24 months.
– For unit that contains fluoridated greenhouse gases in quantities of 50
tonnes of CO2 equivalent or more, but of less than 500 tonnes of CO2
equivalent at least every six months, or where a leakage detection system is
installed, at least every 12 months.
– For unit that contains fluoridated greenhouse gases in quantities of 500
tonnes of CO2 equivalent or more,at least every three months, or where a
leakage detection system is installed,at least every six months.
– This air-conditioning unit is a hermetically sealed equipment that contains
fluoridated greenhouse gases.
52
INTRODUCTION
This manual
This manual includes the necessary information about the unit. Please read
this manual carefully before you use and maintain the unit.
The unit
The hot water heat pump is one of the most economical systems to heat the
water for family domestic use. Using free renewable energy from the air, the
unit is highly efficient with low running costs. Its efficiency can be up to 3
~ 4 times more than conventional gas boilers or electrical heaters. Waste Heat
recovery Units can be installed near the kitchen, in the boiler-room or the
garage, basically in every room which has a large number of waste-heat so that
the unit has the higher energy efficiency even with very low outside
temperatures during the winter. Hot water and dehumidification Units can be
placed in the laundry room or clothing room. When it produces hot water it
lowers the temperature and dehumidifies the room as well. The advantages can
be experienced particularly in the humid season. Storage room cooling Units
can be placed in the storage room as the low temperature keeps the food fresh.
Hot water and fresh air ventilation Units can be placed in the garage, gym,
basement etc. When it produces hot water, it cools the room and supplies fresh
air. Compatible with different energy sources Units can be compatible with
solar panels, external heat pumps, boilers or other different energy sources.
Ecological and Economical Heating Units are the most efficient and economical
alternative to both fossil fuel boilers and heating systems. By making use of
the renewable source in the air, it consumes much less energy. Compact design
Units are especially designed for offering sanitary hot water for family use.
Its extremely compact structure and elegant design are suitable for indoor
installation. Multiple Functions The special design of the air inlet and
outlet makes the unit suitable for various ways of connections. With different
ways of installation, the unit can work as just a heat pump but also as a
fresh air blower, a dehumidifier, or an energy recovery device. Other features
Stainless steel tank and a magnesium stick assure the durability of components
and the tank. Highly efficient compressor with the R290a refrigerant.
Electrical element available in the unit as a back-up, assuring constant hot
water even in extreme cold winters.
53
SAFETY INSTRUCTIONS
To prevent injury to the user, other people, or property damage, the following
instructions must be followed. Incorrect operation due to ignoring of
instructions may cause harm or damage.
Install the unit only when it complies with local regulations, by-laws and
standards. Check the main voltage and frequency. This unit is only suitable
for earthed sockets, connection voltage 220 240 V ~ / 50Hz. The following
safety precautions should always be taken into account: – Be sure to read the
following WARNING before installing the unit. – Be sure to observe the
cautions specified here as they include important items related to safety. –
After reading these instructions, be sure to keep it in a handy place for
future reference.
Do not install the unit yourself. Incorrect installation could cause injury
due to fire, electric shock, the unit falling or leakage of water. Consult the
dealer from whom you purchased the unit or a specialized installer.
Install the unit securely in a place. When insufficiently installed, the unit
could fall causing injury. The bearing surface should be flat to bear the
weight of the unit and suitable for installing the unit without increasing
noise or vibration. When installing the unit in a small room, please take
measures (like sufficient ventilation) to prevent the asphyxia caused by the
leakage of refrigerant. Use the specified electrical wires and attach the
wires firmly to the terminal board (connection in such a way that the stress
of the wires is not applied to the sections). Incorrect connection and fixing
could cause a fire.
BTheesuusree otof
duesfeectthiveeppraorvtsidceodulodrcsapuesceifaiendinpjuarrytsdufoerttohpeoisnssibtalellafitrieo,nelwecotrrkic.
shocks, the unit falling etc. Perform the installation securely and please
refer to the installation instructions. Incorrect installation could cause an
injury due to possible fire, electric shocks, the unit falling, leakage of
water etc. Perform electrical work according to the installation manual and be
sure to use a dedicated section, fused with 16A. If the capacity of the power
circuit is insufficient or there is an incomplete electrical circuit, it could
result in a fire or an electric shock.
ITfhtheeupnoitwmerussutpapllwyaisysnohtaevaertahnede,ayrothuemdacyonnonteccotnionne.ct
the unit. NIf ethveerreuissenoansueitxatbelnes, ieoanrtchaebdlwe atoll
scoocnkneet catvtahileabulen,ithtaovtehoeneeleincstrtaicllepdobwyear
sreucpopglny.ized electrician. Do not move/repair the unit yourself. If the
supply cord is damaged, it must be replaced by the manufacturer or its service
agent or a similarly qualified person in order to avoid a hazard. Improper
movement or repair on the unit could lead to water leakage, electrical shock,
injury or fire.
The unit is no intended for use by children. 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 by a
person responsible for their safety. Children should be supervised to ensure
that they do not play with the appliance.
TDhoenlaobt etelsararoefffothr tehleapbuerlpsoosne tohfewuanrnitin. g or
reminding, keeping them can ensure your safe operations.
54
THE APPLIANCE SHALL BE INSTALLED IN ACCORDANCE WITH NATIONAL WIRING
REGULATIONS. See technical specification table for ambient temperature range
and water temperature range. The water pressure range for the appliance is
0.15-0.7MPa.
– The water may drip from the discharge pipe of the one-way safety valve and
that this pipe must be left open to the atmosphere. – The one-way safety valve
is to be operated regularly to remove lime deposits and to verify that it is
not blocked. Please beware of burn, because of the high temperature of water.
Do not install the unit in a place where there is a chance of flammable gas
leaks. If there is a gas leak and gas accumulates in the area surrounding the
unit, it could cause an explosion. Perform the drainage/piping work according
to the installation instruction. If there is a defect in the drainage/piping
work, water could leak from the unit and household goods could get wet and be
damaged. Do not clean the unit when the power is ON’. Always shutOFF’ the
power when cleaning or servicing the unit. If not, it could cause an injury
due to the high speed running fan or an electrical shock. Do not continue to
run the unit when there is something wrong or there is a strange smell. The
power supply needs to be shut `OFF’ to stop the unit; otherwise this may cause
an electrical shock or fire.
Do not put your fingers or others into the fan, or evaporator.
The inside parts of the heat pump may run at high speed or high temperature,
they could cause serious injury. Do not remove the grills on the fan outlet
and top cover. The hot water probable need to mix with cold water for terminal
usage, too hot water (over 50) in the heating unit may cause injury. The
installation height of power supply should be over 1.8m, if any water may
spatter, the unit can be safe from water.
Fuse specification is T 3.15A 250V Global Warming Potential (GWP) of R290a =
3. Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national legislation.
55
ITEMS INSIDE PRODUCT BOX
Before starting the installation, please make sure that all parts are found inside the box.
Item
The Unit Box Image
Quantity
Domestic hot water heat
1
pump
Operation and Installation
1
Manual
Equipment hanger
2
4 Bolts
Expansion bolt
4
56
Dimensions
100L / 120L
57
Dimensions
100L, 120L
80L
100L
120L
A
519
519
519
B
1078
1185
1328
C
160
160
160
D
20
20
20
E
638
714
666
F
123
123
123
G
230
230
230
H
640
747
890
I
100
100
100
J
100
100
100
K
625
733
876
L
513
513
513
58
OVERVIEW OF THE UNIT Parts and descriptions
200L, 300L
59
Dimensions
200L, 300L
200L
A
576
B
160
C
35
D
455
E
1135
F
270
G
600
H
445
I
41
J
1185
K
35
L
1020
M
795
N
1750
O
560
P
250
300L 658 160
35 460 1230 254 665 250 41 1280 35 1130 825 1850 640 85
Remark:With magnesium stick 1) The solar heat exchange coil is optional. 2)
Add the solar control. While the parameter 14= 1, solar energy control is
available. The terminal “TO PUMP” is connected solar energy water pump, “FS”
is connected the flow switch of solar water circuit, “SOLAR SENSOR” is testing
the temp of solar thermal collector. 3) The Magnesium stick is an anti-
corrosion element. It is assembled in the water tank to avoid the creation of
fur around the inside tank and to protect the tank, and other components. It
can help to extend the life-span of the tank. Check the magnesium stick every
half year and change it if it has been used out
10
- Add the solar control. While the parameter 14= 1, solar energy control is
available. The terminal “TO PUMP” is connected solar energy water pump, “FS”
is connected the flow switch of solar water circuit, “SOLAR SENSOR” is testing
the temp of solar thermal collector. 3) Electrical anod anti-corrosion system
is maitanance free system and mainly consists of controller and titanium
electrode, which makes sure the inner wall of the stainless steel tank is
always protected against corrosion efficiently. 4) When the controller reports
the related fault of the electronic anode, please contact the local service
provider for on-site repair in time. In addition, the system will prohibit
auxiliary electrical heater work under the fault state, and the heat pump is
only allowed to work for 3 days, after that the whole unit will be locked and
cannot continue to work
Electronic Protection Anode Review
– Check periodically by the authorized SAT that the electronic protection anode works correctly.
Schematic overview of the water and refrigeration circuit
Choose the suitable unit Please refer to the table below to choose the suitable unit.
Miembros de la familia 1 ~ 2 people 2 ~ 3 personas 2 ~ 3 personas 4 ~ 5 personas 6 ~ 7 personas Más de 8 personas
Capacidad del tanque 80~100L 120L 200L 250L 300L 500L
Note: The table is just for reference.
Remark:With electrical anode anti-corrosion system 1) The electrical anode
anti-corrosion system is optional. 2) Electrical anode anti-corrosion system
is maintenance free system and mainly consists of controller= and titanium
electrode, which makes sure the inner wall of the stainless-steel tank is
always protected= against corrosion efficiently. When the controller reports
the related fault of the electronic anode, please contact the local service=
provider for on-site repair in time. In addition, the system will prohibit
auxiliary electrical heater work= under the fault state, and the heat pump is
only allowed to work for 3 days, after that the whole unit will= be locked and
cannot continue to work
60
INSTALLATION
Asked your supplier to install the unit. Incomplete installation performed by
yourself may result in a water leakage, electric shock, or fire.
Indoor installation is highly recommended. It is not allow to install the unit
at outdoor or rain achieving place.
The installation place without direct sunlight and other heat supplies is
recommended. If no way to avoid these, please install a covering.
The unit must be securely fixed to avoid noise and shaking. Make sure that
there’s no obstacle around the unit. In the place where there is strong wind,
fix the unit in the location protected from the
wind.
Transportation
As a rule, the unit is to be stored and/or transported in its shipping
container in upright position and without water charge. For a transport over
short distance (provided that it is done with care), an inclination angle up
to 30 degrees is permitted, both during transport and storage. Ambient
temperatures of 20 to +70 degrees Celsius are permitted.
– Transport using a forklift When transported by a forklift, the unit must
remain mounted on the pallet. The lifting rate should be kept to a minimum.
Due to its top-heaviness, the unit must be secured against tipping over. To
prevent any damage, the unit must be placed on a level surface.
– Manual transport For the manual transport, a wooden/plastic pallet can be
used. Using ropes or carrying straps, a second or third handling configuration
is possible. With this type of handling, it is advised that the maximum
permissible inclination angle of 45 degree is not exceeded. If transport in an
inclined position cannot be avoided, the unit should be taken into operation
one hour after it has been moved into final position.
ATTENTION: DUE TO THE HIGH CENTER OF GRAVITY, LOW OVERTURNING MOMENT, THE UNIT
MUST BE SECURED AGAINST TIPPING OVER.
61
Required service space
Below you will find the minimum space required to be able to complete service
and maintenance tasks on the units.
Note: – If air inlet and/or outlet pipes are connected, portion airflow and
capacity in heat pump unit will
lose. – If the unit connects with air ducts it should be DN 180mm for pipes or
180mm internal diameter
flexible hose. Total length of the ducts should not be longer than 8m or the
maximum static pressure should not exceed than 60Pa. Be in mind of bending
site of the duct no more than 4m.
62
Installation overview
Note: Solar heat exchange coil is optional. ATTENTION:
– The PT valve must be installed to release pressure.If not, it could cause
damage to the unit,or even hurt people
– The one-way safety valve must be installed. If not, it could cause damage to
the unit, or even hurt people. The set point of this safety valve is 0.7 MPa.
For the installation place please refer to the pipeline connection sketch.
– The condensate water drainage pipe should be installed in a continuously
downward direction and in a frost-free environment.
63
– The water may drip from the discharge pipe of the one-way safety valve and
that this pipe must be left open to the atmosphere.
– The one-way safety valve is to be operated regularly to remove lime deposits
and to verify that it is not blocked. Please beware of burn, because of the
high temperature of water.
– The tank water can be drained through the drainage hole on the bottom of the
tank. – After all the pipes installed turn on the cold water inlet and hot
water outlet to fill the tank. When
there is water normally following out from water outlet, the tank is full.
Turn off all valves and check all pipes. If any leakage, please repair. – If
the inlet water pressure is less than 0.15MPa, a pressure pump should be
installed at the water inlet. For ensure the long safety using age of tank at
the condition of water supply hydraulic higher than 0.7MPa, a reducing valve
should be mounted at the water inlet pipe. – Filters are needed in the air
inlet. If the unit is connected with ducts, filter in there must be put
forward to the air inlet of duct. – To fluently drain condensate water from
evaporator, please install the unit at the horizontal floor. Otherwise, please
make sure the drain vent is at the lowest place. Recommending the inclination
angle of unit to be ground should no more than 2 degree.
64
Installation positions
(1) Waste heat can be useful heat Units can be installed near the kitchen, in
the boiler-room or the garage, basically in every room which has a large
number of waste-heat so that the unit has the higher energy efficiency even
with very low outside temperatures during the winter.
(2) Hot water and dehumidification Units can be placed in the laundry room or
clothing room. When it produces hot water it lowers the temperature and
dehumidifies the room as well. The advantages can be experienced particularly
in the humid season.
(3) Solar panel or external heat pump could be the second heat source Units
can work with solar panel, external heat pump, boiler or other different
energy source.
NOTE: · Choose the right path to move the unit. · This unit complies with the
relevant technical standards of electrical equipment.
65
Water loop connection
Please pay attention to the below points when connecting the water loop pipe:
- Try to reduce the water loop resistance 2. Make sure there is nothing in
the pipe and the water loop is smooth, check the pipe carefully to see if
there is any leak, and then pack the pipe with the insulation. 3. Install the
one way valve and safety valve in the water circulation system according to
scretch on page 12. The specification of the one way safety value is 0.7Mpa.
Make sure the direction marked on the valve align with the water flow
direction. 4. The nominal pipe wide of the field- installed sanitary
installations must be selected on the basis of the available water pressure
and the expected pressure drop within the piping system. 5. The water pipes
may be of the flexible type. To prevent corrosion damage, make sure that the
materials used in the piping system are compatible. 6. When installing the
pipe-work on the customers’ site, any contamination of the piping system must
be avoided.
Water affusion and water emptying
Water Affusion: 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. – Open the cold water inlet and hot water outlet. – Start the water affusion. When there is water normally flowing out from the hot water outlet, the
tank is full. – Turn off the hot water outlet valve and water affusion is finished.
ATTENTION: Operation without water in water tank may result in damage of auxiliary e-heater!
Water emptying:
If the unit needs cleaning, moving etc, the tank should be emptied. – Close the cold water inlet – Open the hot water outlet and open the manual valve of drainpipe – Start the water emptying. – After emptying, close the manual valve.
66
Wire connection
· The specification of the power supply wire is 3*2.5 mm². · There must be a
switch when connecting the unit to the power system. The current of the
switch is 16A. · The unit must be installed a Creepage Breaker near the power
supply and must be
effectively earthed. The specification of the creepage breaker is 30mA, less
than 0.1sec.
THE APPLIANCE SHALL BE INSTALLED IN ACCORDANCE WITH NATIONAL WIRING
REGULATIONS.
Trial running
Checks before trial running
Check both the water in the tank as well as the water pipe connection. Check
the power system, make sure that the power supply is normal and the wire
connection is ok. Check the inlet water pressure, make sure that the pressure
is sufficient (above 0.15Mpa). Check if any water flows out from the hot water
outlet, make sure that the tank is full of water
before turning on the power. Check the unit; make sure everything is ok before
turning ON’ the power of the unit, check the light on the wire controller when the unit runs. Use the wire controller to start the unit. Listen to the unit carefully when turningON’ the power of
the unit. Turn the power `OFF’
when you hear an abnormal sound. Measure the water temperature, to check the
undulation of the water temperature. Once the parameters have been set, the
user cannot change the parameters optionally.
Please use a qualified service person to do this.
67
OPERATION THE UNIT
User interface and operation
Electrical heater ON’/’OFF’ button UnitON’/’OFF’ button
UP adjust button
Set button Clock/Timer setting button DOWN adjust button
Operations
1. Power ON’ When turningON’ the power, whole icons are displayed on the
controller screen for 3 seconds. After checking if everything is ok, the unit
enters into the standby mode.
button
Press this button and keep for 2 seconds when the unit is standby, the unit can be turned `ON’.
Press this button and keep for 2 seconds when the unit is running, the unit can be turned `OFF’.
Short press this button to entry or exit the parameter setting or checking.
68
And
buttons
– These are the multi-purpose buttons. They are used for the temp setting, parameter setting,
parameter checking, clock adjustment and adjustment of the timer.
– During running status, press or button to adjust the setting temperature directly.
– Press these buttons when the unit is on clock setting status, the hour(s) and the minute(s) of
the clock time can be adjusted.
– Press these buttons when the unit is on timer setting status, the hour(s) and the minute(s) of
the timer `ON’/’OFF’ can be adjusted.
– Press and – Press and
unlocked.
buttons at the same time and hold for 5 seconds, the buttons are locked. buttons at the same time and hold for 5 seconds again, the buttons are
4 button Clock setting: – After power on, short press button to entry the clock setting interface, hour and minute icons “88:88” flash together; – Short press button to switch hour/minute setting, press the and buttons to set the exact hour(s) and minute(s); – Press button again to confirm and exit.
Timer setting: – After power on, long press button for 5 seconds to entry the
timer setting interface, the timer on icon and hour icon “88:” flash together;
– Press the and buttons to set the exact hour(s). – Press button to transfer
to minute setting, minute icon “:88” flash, press the and buttons to set the
exact minute(s).
– Press button again to transfer to timer off setting, the timer off icon and
hour icon “88:”
flash together. – Press the and buttons to set the exact hour(s). – Press
button to transfer to minute setting, minute icon “:88” flash, press the and
buttons to set the exact minute(s). – Press button again to save and exit the
timer setting interface.
Press button to cancel the timer settings during the timer ON’ (or timer OFF’) programming.
69
NOTE:
- The timer
ON’ and timerOFF’ functions can be set at the same time. 2) The timer settings are repeating. 3) The timer settings are still valid after a sudden power cut.
6 button 1) When the heat pump is ON, press this button to turn `ON’ the electrical heater. The heater icon will be showed, and the electrical heater will work according to the control program (parameter 3). 2) When the heat pump is ON, press this button and hold for 5 seconds to enable or disable the fan ventilation function. 3) When the heat pump is OFF, press this button to entry E-heater heating mode.
7 button 1) Check the temperatures and EXV open steps(running parameter) -Press this button to entry temp and EXV open step checking. -Press the and buttons to check the temp sensor values and EXV open steps (parameters A-H). - Check the system parameters -In any status, press this button and hold for 5 seconds, entry the system parameter checking interface. -Press the and buttons to check the system parameters.
- Adjust the system parameters – When the unit is off, press for 5 seconds,
entry the parameter checking interface. – Press or button to select the
parameter, and press button to confirm it. – Press the and buttons to adjust
the selecting parameter, then press to confirm the setting.
If no action to the buttons for 10 seconds, the controller will exit and save the setting automatically.
NOTE: The parameters have been set; the user cannot change the parameters optionally. Please ask a qualified service person to do this when required.
8 Error codes During standby or running status, if there is a malfunction, the unit will stop automatically and show the error code on the left screen of the controller.
70
LED icons
1. Hot water available The icon indicates that the domestic hot water
temperature reaches the set point. The hot water is available for use. Heat
pump is standby.
2. Fan ventilation The icon indicates that the fan ventilation function is
enabled. When the unit is on, press the button and hold it for 5 seconds the
fan ventilation function can be enabled or disabled. If this function is
enabled the fan will continue working to ventilate the air, when the water
temperature reaches the set point and unit is standby. If this function is
disabled the fan will stop, when the water temperature reaches the set point
and unit is standby.
3. Electrical heating The icon indicates that the electrical heating function
is enabled. The electrical heater will work according to the control program.
4. Defrosting this icon shows the heat pump is under defrosting
5. Heating this icon shows the heat pump is working
6. Key lock The icon indicates the key lock function is enabled. The keys
cannot be operated until this function is disabled.
7. Left temperature display The display shows the setting water temperature.
When checking or adjusting the parameters, this section will display the
relating parameter number.
71
8. Right temperature display The display shows the current downside
temperature of the water tank. When checking or adjusting the parameters, this
section will display the related parameter value. In case any malfunction
occurs, this section will display the related error code.
9. Time display The display shows the clock time or timer time.
10. Timer ON’ The icon indicates that the timerON’ function is enabled.
11. Timer OFF’ The icon indicates that the timerOFF’ function is enabled.
12. Error The icon indic