HTW LION HTW-SWP-O-070LIO Service manual

OWNER’S AND
INSTALLATION MANUAL
SWIMMING POOL HEAT PUMP
ENGLISH
Thanks for choosing our product.
Please, read carefully this manual
before using the product.
LION
HTW-SWP-O-070LIO |HTW-SWP-O-110LIO
HTW-SWP-O-160LIO |HTW-SWP-O-190LIO

CONTENTS
1. Preface ....................................................................................
3.
4.
4.1
4.2
4.3
4.6
4.7
4.8
4.9
4.10 Parameter list and breakdown table.....................................
Installation and Connection........................................................
3.2 Swimming Pool Heat Pumps Location.....................................
3.3 How Close to Your Pool?.......................................................
3.4 Swimming Pool Heat Pumps Plumbing...................................
3.5 Swimming Pool Heat Pumps Electrical Wiring ........................
3.6 Initial Start-up of the Unit......................................................
Use and Operation Instruction....................................................
Interface display..................................................................
Key and icon function instruction .........................................
Startup & shutdown.............................................................
4.4 Switch Mode........................................................................
Clock setting.......................................................................
Mute setting........................................................................
Keyboard lock.....................................................................
Fault interface.....................................................................
5. Maintenance and Inspection.....................................................
6.Appendix................................................................................
6.1 Controller interface diagram and definition....................................
6.2 Cable especification ....................................................................
1
7
8
9
10
10
11
11
11
13
13
15
17
18
18
19
22
23
23
26
4.5 Temperature setting......................................................................... 14
2.Specifications............................................................................ 4
2.1 Performance Data of Swimming Pool Heat Pump Unit.............
2.2 Dimensions for Swimming Pool Heat Pump Unit.....................
4
6
3.1 Installation illustration.......................................................... 7
8

1. PREFACE
In order to provide our customers with quality, reliability and versatility, this product has
been made to strict production standards. This manual includes all the necessary
information about installation, debugging, discharging and maintenance. Please read this
manual carefully before you open or maintain the unit. The manufacture of this product will
not be held responsible if someone is injured or the unit is damaged, as a result of
improper installation, debugging, or unnecessary maintenance. It is vital that the
instructions within this manual are adhered to at all times. The unit must be installed by
qualified personnel.
The unit can only be repaired by qualified installer centre , personnel or an authorised
dealer.
Maintenance and operation must be carried out according to the recomended time and
frequency, as stated in this manual.
Use genuine standard spare parts only.
Failure to comply with these recommendations will invalidate the warranty.
Swimming Pool Heat Pump Unit heats the swimming pool water and keeps the temperature
constant. For split type unit, The indoor unit can be Discretely hidden or semi-hidden to
suit a luxury house.
Our heat pump has following characteristics:
1 Durable
The heat exchanger is made of PVC & Titanium tube which can withstand prolonged
exposure to swimming pool water.
2 Installation flexibility
The unit can be installed outdoors.
3 Quiet operation
The unit comprises an efficient rotary/ scroll compressor and a low-noise fan motor,
which guarantees its quiet operation.
4 Advanced controlling
The unit includes micro-computer controlling, allowing all operation parameters to be
set. Operation status can be displayed on the LCD wire controller. Remote controller can be
chosen as future option.
1
WARNING
Do not use means to accelerate the defrosting process or to clean,
Other than those recimmended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources
(for example:open flames, an operating gas appliance or an operating electric heater.)
Do not pierce or burn.
Be aware that refrigerants may not contain an odour,
Appliance shall be installed,operated and stored in a room with a floor area larger than X .
NOTE The manufacturer may provide other suitable examples or may provide additional
information about the refrigerant odour.

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.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
The appliance shall be installed in accordance with national wiring regulations.
Do not operate your air conditioner in a wet room such as a bathroom or laundry room.
Before obtaining access to terminals, all supply circuits must be disconnected.
An all-pole disconnection device which has at least 3mm clearances in all poles and
have a leakage current that may exceed 10mA the residual current device (RCD) having
disconnection must bea rated residual operating current not exceeding 30mA and
incorporated in the fixed wiring in accordance with the wiring rules
1. PREFACE
2
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer
The appliance shall be stored in a room without continuously operating ignition sources (for
example: open flames, an operating gas appliance or an operating electric heater.)
Do not pierce or burn
Appliance shall be installed, operated and stored in a room with a floor area larger than X m2
Be aware that refrigerants may not contain an odour.
The installation of pipe-work shall be kept to a minimum X m2
Spaces where refrigerant pipes shall be compliance with national gas regulations.
Servicing shall be performed only as recommended by the manufacturer.
The appliance shall be stored in a well-ventilated area where the room size corresponds to
the room area as specified for operation.
All working procedure that affets safety means shall only be carried by competent persons.
Transport of equipment containing flammable refrigerants
Compliance with the transport regulations
Marking of equipment using signs
Compliance with local regulations
Disposal of equipment using flammable refrigerants
Compliance with national regulations
Storage of equipment/appliances
The storage of equipment should be in accordance with the manufacturer's instructions.
Storage of packed (unsold) equipment
Storage package protection should be constructed such that mechanical damage to the
equipment inside the package will not cause a leak of the refrigerant charge.
The maximum number of pieces of equipment permitted to be stored together will be
determined by local regulations.

1. The unit can only be repaired by qualified installer centre personnel or an authorised
dealer. for Europe market
2. 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. for Europe market
Children should be supervised to ensure that they do not play with the appliance.
3. Please make sure that the unit and power connection have good earthing, otherwise may
cause electrical shock.
4. If the supply cord is damaged, it must be replaced by the manufacturer or our service agent
or similarly qualified person in order to avoid a hazard.
5. Directive 2002/96/EC (WEEE):
The symbol depicting a crossed-out waste bin that is underneath the appliance indicates that
this product, at the end of its useful life, must be handled separately from domestic waste,
must be taken to a recycling centre for electric and electronic devices or handed back to the
dealer when purchasing an equivalent appliance.
6. Directive 2002/95/EC (RoHs): This product is compliant with directive 2002/95/EC (RoHs)
concerning restrictions for the use of harmful substances in electric and electronic devices.
7. The unit CANNOT be installed near the flammable gas. Once there is any leakage of the gas,
fire can be occur.
8. Make sure that there is circuit breaker for the unit, lack of circuit breaker can lead to
electrical shock or fire.
9. The heat pump located inside the unit is equipped with an over-load protection system. It
does not allow for the unit to start for at least 3 minutes from a previous stoppage.
10. The unit can only be repaired by the qualified personnel of an installer center or an
authorized dealer. for North America market
11. Installation must be performed in accordance with the NEC/CEC by authorized person
only. for North America market
12. USE SUPPLY WIRES SUITABLE FOR 75 .
13. Caution: Single wall heat exchanger, not suitable for potable water connection.
Caution & Warning
1. PREFACE
3

*** REFRIGERANT : R32
2.SPECIFICATION
2.1 Performance data of Swimming Pool Heat Pump Unit
4
kW
Btu/h
kW
Btu/h
kW
kW
A
A
kW
Btu/h
kW
Btu/h
kW
kW
A
A
RPM
dB(A)
mm
3
m/h
kPa
mm
mm
kg
kg
UNIT
*
*Range
* Heating Power Input
*Range
* Running Current Input
*Range
**
**Range
** Heating Power Input
**Range
** Running Current Input
**Range
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Ship Dimensions(L/W/H)
Net Weight
Shipping Weight
Rated Heating Capacity(90Hz)
Rated (90Hz)
Rated (90Hz)
Rated Heating Capacity(90Hz)
Rated (90Hz)
Rated (90Hz)
See the drawing of the units
See package lable
see nameplate
see package label
HTW-SWP-O-110LIO
11.66
39644
1.97~11.66
6698~39644
2.00
0.16~2.00
0.87
0.70 0.87
8.62
29308
1.79~8.62
6086~29308
1.91
0.29~1.91
8.30
1.26~8.30
230V~/50Hz
1
Rotary(Mitsubishi)
1
800
horizontal
42-53
50
3.7
4.0
HTW-SWP-O-070LIO
7.24
24700
1.82~7.24
6210~24700
1.28
0.15~1.28
5.57
0.65~5.57
5.64
19240
1.39~5.64
4740~19240
1.28
0.24~1.28
5.57
1.04~5.57
220-240V~/50Hz
1
Rotary(Mitsubishi)
1
700
horizontal
38-50
50
2.4
2.0
1. The unit can onlybe repaired byqualified installer centrepersonnel or anauthorised
dealer. for Europe market
2. This appliance is notintended for useby persons (includingchildren) with reducedphysical
sensory or mentalcapabilities, or lackof experience andknowledge, unless theyhave been
given supervision orinstruction concerning useof the applianceby a personresponsible for
their safety. for Europe market
Children should besupervised to ensurethat they donot play withthe appliance.
3. Please makesure that theunit and powerconnection have goodearthing, otherwise may
cause electrical shock.
4. If thesupply cord isdamaged, it mustbe replaced bythe manufacturer orour service agent
or similarly qualifiedperson in orderto avoid ahazard.
5. Directive 2002/96/EC(WEEE):
The symbol depicting a crossed-outwaste bin thatis underneath theappliance indicates
that this product,at the endof its usefullife, must behandled separately fromdomestic
waste, must betaken to arecycling centre forelectric and electronicdevices or handed
back to thedealer when purchasingan equivalent appliance.
6. Directive 2002/95/EC(RoHs): This product is compliantwith directive 2002/95/EC(RoHs)
concerning restrictions forthe use ofharmful substances inelectric and electronicdevices.
7. The unit CANNOT be installed nearthe flammable gas.Once there isany leakage ofthe gas
, fire canbe occur.
8. Make surethat there iscircuit breaker forthe unit, lackof circuit breaker can lead to
electrical shock orfire.
9. The heat pump locatedinside the unitis equipped withan over-load protectionsystem. It
does not allowfor the unitto start forat least 3minutes from aprevious stoppage.
10. The unit can onlybe repaired bythe qualified personnelof an installercenter or an
authorized dealer. for NorthAmerica market
11. Installation must beperformed in accordancewith the NEC/CECby authorized persononly.
for NorthAmerica market
12. USE SUPPLY WIRES SUITABLE FOR 75 .
13. Caution: Singlewall heat exchanger, not suitablefor potable waterconnection.
Caution & Warning
1. PREFACE
3
Rated Heating: *Outdoorair temp: 27ºC
**Outdoor air temp:15 ºC
, Inlet/Outlet water temp:26ºC/28ºC ,
Inlet/Outlet watertemp:26ºC/28ºC
During heating: Runningambient temperature: -5ºC~43ºC
/24.3ºC
/12ºC

*** REFRIGERANT : R32
2.SPECIFICATION
2.1 Performance data of Swimming Pool Heat Pump Unit
5
kW
Btu/h
kW
Btu/h
kW
kW
A
A
kW
Btu/h
kW
Btu/h
kW
kW
A
A
RPM
dB(A)
mm
3
m/h
kPa
mm
mm
kg
kg
UNIT
*
*Range
* Heating Power Input
*Range
* Running Current Input
*Range
**
**Range
** Heating Power Input
**Range
** Running Current Input
**Range
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Ship Dimensions(L/W/H)
Net Weight
Shipping Weight
Rated Heating Capacity(90Hz)
Rated (90Hz)
Rated (90Hz)
Rated Heating Capacity(90Hz)
Rated (90Hz)
Rated (90Hz)
Rated Heating: *Outdoorair temp: 27ºC
**Outdoor air temp:15 ºC
, Inlet/Outlet water temp:26ºC/28ºC ,
Inlet/Outlet watertemp:26ºC/28ºC
During heating: Runningambient temperature: -5ºC~43ºC
/24.3ºC
/12ºC
See the drawing of the units
See package lable
see nameplate
see package label
HTW-SWP-O-190LIO
18.70
63580
3.50~18.70
11900~63580
3.65
0.32~3.65
15.87
1.39~15.87
14.00
47600
2.55~14.00
8670~47600
3.24
0.47~3.24
14.09
2.04~14.09
22-240V~/50Hz
1
Rotary(HIGHLY)
1
850
horizontal
42-53
50
6.0
5.0
HTW-SWP-O-160LIO
16.00
54400
3.25~16.00
11050~5440
2.91
0.30~2.91
12.60
1.30~12.60
12.60
42840
2.55~12.60
8670~42840
2.80
0.44~2.80
12.17
1.91~12.17
220-240V~/50Hz
1
Rotary(HIGHLY)
1
750
horizontal
43-54
50
5.2
5.0
2.SPECIFICATION
3
Model:HTW-SWP-0-070LIO/ 110LIO
unit mm
2.2 Dimensions for Swimming Pool Heat Pump Unit
Model:HTW-SWP-0-160LIO/ 190LIO
unit mm
Water outlet
50
Water inlet
50
1002
190
1035
395
201
610
103 350
770
Water outlet
50
Water inlet
50
1115
182
1165
440
118
815
101 400
870

*** REFRIGERANT : R32
2.SPECIFICATION
2.1 Performance data of Swimming Pool Heat Pump Unit
4
kW
Btu/h
kW
Btu/h
kW
kW
A
A
kW
Btu/h
kW
Btu/h
kW
kW
A
A
RPM
dB(A)
mm
3
m/h
kPa
mm
mm
kg
kg
UNIT
*
*Range
* Heating Power Input
*Range
* Running Current Input
*Range
**
**Range
** Heating Power Input
**Range
** Running Current Input
**Range
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Ship Dimensions(L/W/H)
Net Weight
Shipping Weight
Rated Heating Capacity(90Hz)
Rated (90Hz)
Rated (90Hz)
Rated Heating Capacity(90Hz)
Rated (90Hz)
Rated (90Hz)
During heating: Runningambient temperature: -5 ~43
Rated Heating: *Outdoorair temp: 27 , Inlet/Outlet water temp:26 /28
**Outdoor air temp:15 , Inlet/Outlet water temp:26 /28
/24.3
/12
See the drawing of the units
See package lable
see nameplate
see package label
HTW-SWP-0-190LIO
18.70
63580
3.50~18.70
11900~63580
3.65
0.32~3.65
15.87
1.39~15.87
14.00
47600
2.55~14.00
8670~47600
3.24
0.47~3.24
14.09
2.04~14.09
22-240V~/50Hz
1
Rotary(HIGHLY)
1
850
horizontal
42-53
50
6.0
5.0
HTW-SWP-0-160LIO
16.00
54400
3.25~16.00
11050~5440
2.91
0.30~2.91
12.60
1.30~12.60
12.60
42840
2.55~12.60
8670~42840
2.80
0.44~2.80
12.17
1.91~12.17
220-240V~/50Hz
1
Rotary(HIGHLY)
1
750
horizontal
43-54
50
5.2
5.0
2.SPECIFICATION
6
Model: HTW-SWP-O-070LIO / HTW-SWP-O-110LIO
unit mm
2.2 Dimensions for Swimming Pool Heat Pump Unit
Model: HTW-SWP-O-160LIO / HTW-SWP-O-190LIO
unit mm
Water outlet
50
Water inlet
50
1002
190
1035
395
201
610
103 350
770
Water outlet
50
Water inlet
50
1115
182
1165
440
118
815
101 400
870

7
3.INSTALLATION AND CONNECTION
3.1 Installation illustration
Chlorinator cell
Water outlet
Pool
Valve
Water supply
Water inlet Water pump
Sand filter
(or other type filter)
The unit willperform well inany outdoor locationprovided that thefollowing three factorsare
presented:
1. Fresh Air - 2. Electricity - 3. Pool filter piping
The unit maybe installed virtuallyanywhere outdoors. Forindoor pools pleaseconsult the
supplier. Unlikea gas heater, it hasno draft orpilot light problemin a windyarea.
DO NOT place the unitin an enclosedarea with alimited air volume,where the units
discharge air willbe re-circulated.
DO NOT place the unitto shrubs whichcan block airinlet. These locations deny theunit of a
continuous source offresh air whichreduces it efficiency and mayprevent adequate heat
delivery.
3.2 Swimming Pool Heat Pumps Location
Normally, the pool heatpump is installed within 7.5 metres of the pool. The longer the
distance from thepool, the greaterthe heat lossfrom the piping.For the mostpart ,the piping
is buried. Therefore, the heat loss is minimal for runs of up to15 meters(15 meters to and from
the pump =30 meters total), unless the ground is wet or the water table is high. A very rough
estimate of heatloss per 30meters is 0.6 kW-hour,(2000BTU) for every 5 difference in
temperature between thepool water andthe ground surroundingthe pipe, whichtranslates to
about 3% to5% increase inrun time.
3.3 How Close To Your Pool?
5
3.INSTALLATION AND CONNECTION
Air inlet
Air outlet
Air inlet
Air outlet
2500mm
700mm
300mm
500mm
2000mm
1000mm
800mm
700mm
Installation items:
The factory only provides the main unit andthe water unit;the other itemsin the illustration
are necessary spareparts for thewater system ,thatprovided by usersor the installer.
Attention:
Please follow thesesteps when usingfor the firsttime
1.Open valve and charge water.
2.Make sure that the pump and the water-in pipe have been filled with water.
3.Close the valve and start the unit.
ATTN: It is necessarythat the water-inpipe is higher than the pool surface.
The schematic diagram is forreference only. Please checkthe water inlet/outlet label on the
heat pump whileplumbing installation.
The schematic diagram is forreference only. Please checkthe water inlet/outlet label on the
heat pump whileplumbing installation.
The controller ismounted on thewall

8
3.INSTALLATION AND CONNECTION
3.2 Swimming Pool Heat Pumps Location
The unit will perform well in any outdoor location provided that the following three factors are
presented:
1 . Fresh Air - 2. Electricity - 3. Pool filter piping
The unit may be installed virtually anywhere outdoors. For indoor pools please consult the
supplier. Unlike a gas heater, it has no draft or pilot light problem in a windy area.
DO NOT place the unit in an enclosed area with a limited air volume, where the units
discharge air will be re-circulated.
DO NOT place the unit to shrubs which can block air inlet. These locations deny the unit of a
continuous source of fresh air which reduces it efficiency and may prevent adequate heat
delivery.
Normally, the pool heat pump is installed within 7.5 metres of the pool. The longer the
distance from the pool, the greater the heat loss from the piping. For the most part ,the piping
is buried. Therefore, the heat loss is minimal for runs of up to15 meters(15 meters to and from
the pump = 30 meters total), unless the ground is wet or the water table is high. A very rough
estimate of heat loss per 30 meters is 0.6 kW-hour,(2000BTU) for every 5 difference in
temperature between the pool water and the ground surrounding the pipe, which translates to
about 3% to 5% increase in run time.
3.3 How Close To Your Pool?
Air inlet
Air outlet
Air inlet
Air outlet
2500mm
700mm
300mm
500mm
2000mm
1000mm
800mm
700mm

3.INSTALLATION AND CONNECTION
9
3.4 Swimming Pool Heat Pumps Plumbing
Location: Connect the unit in the pool pump discharge (return) line downstream of all filter
and pool pumps, and upstream of any chlorinators, ozonators or chemical pumps.
Standard model have slip glue fittings which accept 32mm or 50 mm PVC pipe for
connection to the pool or spa filtration piping. By using a 50 NB to 40NB you can plumb 40NB
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow
easy draining of unit for winterizing and to provide easier access should servicing be
required.
Condensation: Since the Heat pump cools down the air about 4 -5 , water may condense on
the fins of the horseshoe shaped evaporator. If the relative humidity is very high, this could
be as much as several litres an hour. The water will run down the fins into the basepan and
drain out through the barbed plastic condensation drain fitting on the side of the basepan.
This fitting is designed to accept 20mm clear vinyl tubing which can be pushed on by hand
and run to a suitable drain. It is easy to mistake the condensation for a water leak inside the
unit.
NB: A quick way to verify that the water is condensation is to shut off the unit and keep the
pool pump running. If the water stops running out of the basepan, it is condensation. AN
EVEN QUICKER WAY IS to TEST THE DRAIN WATER FOR CHLORINE - if the is no chlorine
present, then it's condensation.
The Swimming Pool Heat Pumps exclusive rated flow titanium heat exchanger requires no
special plumbing arrangements except bypass(please set the flow rate according to the
nameplate). The water pressure drop is less than 10kPa at max. Flow rate. Since there is no
residual heat or flame Temperatures, The unit does not need copper heat sink piping. PVC
pipe can be run straight into the unit.
From Pump
To Pool
Pvc Coupler
Recommended(provided)
Condensation
Drain Barb Ftg

3.INSTALLATION AND CONNECTION
1. Turn on your filter pump. Check for water leaks and verify flow to and from the pool.
2. Turn on the electrical power supply to the unit, then press the key ON/OFF of wire
controller, It should start in several seconds.
3. After running a few minutes make sure the air leaving the top(side) of the unit is
cooler(Between 5-10 )
4. With the unit operating turn the filter pump off. The unit should also turn off automatically,
5. Allow the unit and pool pump to run 24 hours per day until desired pool water temperature
is reached. When the water-in temperature reaches this setting, the unit will slow down for a
period of time, if the temperature is maintained for 45 minutes the unit will turn off. The unit
will now automatically restart (as long as your pool pump is running)when the pool
temperature drops more than 0.2 below set temperature.
Time Delay- The unit is equipped with a 3 minute built-in solid state restart delay included to
protect control circuit components and to eliminate restart cycling and contactor chatter.
This time delay will automatically restart the unit approximately 3 minutes after each control
circuit interruption. Even a brief power interruption will activate the solid state 3 minute
restart delay and prevent the unit from starting until the 5 minute countdown is completed.
Power interruptions during the delay period will have no effect on the 3 minute countdown.
3.5 Swimming Pool Heat Pumps Electrical Wiring
NOTE: Although the unit heat exchanger is electrically isolated from the rest of the unit, it
simply prevents the flow of electricity to or from the pool water. Grounding the unit is still
required to protect you against short circuits inside the unit. Bonding is also required.
The unit has a separate molded-in junction box with a standard electrical conduit nipple
already in place. Just remove the screws and the front panel, feed your supply lines in
through the conduit nipple and wire-nut the electric supply wires to the three connections
already in the junction box (four connections if three phase). To complete electrical hookup,
connect Heat Pump by electrical conduit, UF cable or other suitable means as specified (as
permitted by local electrical authorities) to a dedicated AC power supply branch circuit
equipped with the proper circuit breaker, disconnect or time delay fuse protection.
Disconnect - A disconnect means (circuit breaker , fused or un-fused switch) should be
located within sight of and readily accessible from the unit, This is common practice on
commercial and residential air conditioners and heat pumps. It prevents remotely-energizing
unattended equipment and permits turning off power at the unit while the unit is being
serviced.
3.6 Initial startup of the Unit
NOTE- In order for the unit to heat the pool or spa, the filter pump must be running to
circulate water through the heat exchanger.
Start up Procedure - After installation is completed, you should follow these steps:
10

4.Use and Operation Instruction
4.2.1 Key function instruction
4.1.Interface display
Designation
Mute key
Mode key
On-off key
Up key
Down key
Clock key
Under the heating mode or heating mode under the
automatic mode, the mute key operation is effective and
used to enter and exit the mute mode with one click.
4.2.Key and icon function instruction
Key symbols
It is used to switch the unit mode, temperature setting,
and parameter setting.
It is used to carry out startup & shutdown, cancel current
operation,and return to the last level of operation.
It is used to page up, and increase variable value.
It is used to page down, and decrease variable value.
It is used as user clock, and to carry out timing setting.
Function
11

12
4.2.2.Icon function instruction
4.Use and Operation Instruction
Icon symbol
Designation
Function
Cooling
symbol
Heating
symbol
Automatic
symbol
Defrosting
symbol
Compressor
symbol
Water pump
symbol
Fan symbol
Mute symbol
Timing symbol
Water outlet
symbol
Water inlet
symbol
Locking key
symbol
Fault symbol
Wireless signal
symbol
Degrees Celsius
symbo
l
Degrees Fahrenheit
symbol
Setting symbol
Second symbol
Minute symbol
Hour symbol
Pressure
symbol
Flow symbol
It will display during cooling (there is no limit to startup &
shutdown, and it is optional when the unit is cooling-only
unit or heating-and-cooling unit).
It will display during heating (there is no limit to startup &
shutdown, and it is optional when the unit is heating-only
unit or heating-and-cooling unit).
It will display under the automatic mode (there is no limit to
startup & shutdown, and it is optional when the unit is heating-
and-cooling unit).
It will display in the defrosting process of the unit.
It will display when compressor is started.
It will display when water pump is started.
It will display when fan is started.
When the timing mute function is started, it keeps bright for a
long time. When it is in mute state, it will flash. Or else, it is off.
It will display after the user sets the timing, and multiple timing
intervals can be set .
When the axillary display area displays the water outlet
temperature, the light is on.
When the main display area displays the water inlet temperature,
the light is on.
When the keyboard is locked, it is on.
In case of unit fault, it is on.
When the unit is connected to WIFI module, it will display
according to the strength of WIFI signal.
When main display area or auxiliary display area displays
degrees Celsius, it is on.
When main display area or auxiliary display area displays
degrees Fahrenheit, it is on.
When the parameter is adjustable, it is on
When main display area displays second digit, it is on.
When main display area displays minute digit, it is on.
When main display area displays hour digit, it is on.
When main display area displays pressure, it is on.
When main display area displays flow, it is on.

4.3. Startup & shutdown
4.Use and Operation Instruction
13
Keep long press of " "for 0.5 s
to enter ON/OFF interface
When there is no operation
within 15 minutes, it will
display with full screen off
When the unit is started under the control of wire controller, if using the emergency switch to
shut down, the wire controller will display as follows:
Operations are the same as under ON/OFF main interface.
Under the main interface, Short press" "to switch the unit among heating, cooling and
automatic mode.
When there is no operation
within 1 minute, it will display
with half screen off
Notes:
Startup & shutdown operation can only be conducted in the main interface.
When it displays with half screen off or full screen off, click any key for returning to ON/OFF
main interface.
4.4. Mode switch

14
Short press" " for to switch the
mode circularly, after no operation
for 2s, the current mode will be saved.
Cooling mode
Automatic mode
2). When the unit is under the defrosting state, the defrosting symbol is on,with the display
interface as follows:
After completing the defrosting, the unit will be
automatically switched to the heating/automatic
mode (keeping consistent with the mode before
defrosting).
Notes: During the defrosting, mode switch is available. And when switching the mode, the unit
won t work under a new mode until defrosting is completed.
Heating mode
Operation descriptions:
1). Mode switch operation can only be conducted in the main interface.
4.5. Temperature setting
Short press " " or " " for increasing
or decreasing target temperature.
Short press " " to return
and save the setting.
Setting temperature
flashing
Short press " " or " " for entering
temperature setting interface.
4.Use and Operation Instruction

15
1 .Permanent awakening clock key
Keep long press of
" + " for 2 s ,
and at the same time
the wire controller
will buzz for 1s
Short press " + "
at the same time Short press " "
Short press " " or
" " for changing
hour digit
Short press " "
and the minute
digit is flashing
Short press " "
or " " for changing
minute digit
Short press " " for
saving the change
and returning to the
main interface
Keeps clock key
displayed permanently
hour digit
flashing
System time setting
interface
Notes: After the permanent awakening of clock key, if it is not cancelled by user, the main
interface will display the clock key permanently. Under the clock setting interface, if short press
" " , the change will not be saved and return to the main interface; if there is no operation for
20s, the system will automatically memorize user s setting, and return to the main interface.
Notes: Under the temperature setting interface, if short press " ", the system will return to
the main interface without any changes saved; If there is no operation for 5 s, the system
will automatically memorize user's setting, and return to the main interface.
4.6. Clock setting
4.6.1 System time setting
Keep long press of
" + " for 2 s ,
and at the same time
the wire controller
will buzz for 1s
2 .Single awakening clock key
3 .System time setting
System time setting
interface
4.Use and Operation Instruction

16
4.6.2 Setting and cancellation of timing ON and OFF
Flashing
Keep long press
of " " for 2s for
entering timing
setting
Short press" " or
" " to circularly
display among
timing ON1, OFF1,
ON2 andOFF2
Short press " "
or " " for adjusting
hour digit
Short press " "
for setting hour digit
of timing ON1
Short press " "
or " " for adjusting
minute digit
Short press " "
for saving timing
On1
Short press " "
and " " at the
sametime
Short press " " for saving
the change and returning to
the main interface
Flashing
Short press " "
for cancelling timing
setting
Notes: If there is no operation for 20 s, the system will automatically memorize user s setting,
and return to the main interface; If the timing symbol and entire time digits flash at the same
time, click " " for returning to the main interface.
Flashing
Short press " "
for cancelling timing
setting
Short press " "
for setting minute
digit of timing On1
4.Use and Operation Instruction

17
4.7. Mute setting
4.7.1 One-click mute
short press " "
Notes:
1). If one-click mute and timing mute are stared at the same time, short press " " for
canceling one-click mute and quitting the timing mute for this time.
2). At night or the rest time, user can start one-click mute or timing mute function to reduce
the noise.
4.7.2 Setting and cancellation of timing mute
Keep long press
of " " fo r 2 s
Short press" "
or " "
Short press" " for entering
the hour digit setting of
timing-on mute
Short press" "
or " "
Short press" " for confirming
the timing-on mute, and turn to
the setting of timing-off mute
Short press " " for
entering the hour digit
setting of timing-off mute
Short press" "
or " "
Short press" " for confirming
timing-off mute, saving the changes
and returning to the main interface
Short press " " for
cancelling the timing mute
Flashing
Flashing
Flashing
Flashing
Short press" " for
cancelling the timing
mute
4.Use and Operation Instruction