VIAN POWER HP-VP501 Service manual

Hot Tub Heat Pump
Installation & Instruction Manual
IMPORTANT NOTE:
Thank you very much for purchasing our product. Before using your unit, please read
this manual carefully and keep it for future reference.

CONTENT
1. FOREWORD..................................................................................................................... 1
1.1. Read the Manual Before Operation......................................................................... 1
1.2. The Symbol Description of the Device..................................................................... 6
1.3. Statement.................................................................................................................6
1.4. Safety Factors ..........................................................................................................6
2. OVER VIEW OF THE UNIT...............................................................................................9
2.1. Accessories Supplied With the Unit ......................................................................... 9
2.2. Dimensions of the Unit.............................................................................................9
2.3. Main Parts of the Unit .............................................................................................10
2.4. Parameter of the Unit ............................................................................................. 11
3. INSTALLATION AND CONNECTION.............................................................................. 12
3.1. Transportation ........................................................................................................ 12
3.2. Installation Instruction............................................................................................ 12
3.2.1 Pre-requirements...........................................................................................12
3.2.2 Location and Space .......................................................................................13
3.2.3 Installation Layout ..........................................................................................13
3.2.4 Electrical Installation......................................................................................14
3.2.5 Electrical Connection.....................................................................................15
3.3. Trial After Installation..............................................................................................15
3.3.1 Inspection Before Trial Running.................................................................... 15
3.3.2 Trial Running ................................................................................................. 15
4. REMOTE CONTROLLER OPERATION GUIDANCE.................................................................. 16
4.1. Control Panel Diagram ...........................................................................................16
4.2. Key Operating Instruction.......................................................................................16
4.3. System Status Parameter Query........................................................................... 17
4.4. Trouble Shooting....................................................................................................18
4.5. Wi-Fi Settings.........................................................................................................21
4.5.1 Software Installation ...................................................................................... 21

4.5.2 Software Startup............................................................................................21
4.5.3 Software Registration and Configuration.......................................................22
4.5.4 Software Function Operation.........................................................................30
4.5.5 Device Removal ............................................................................................ 35
5. MAINTENANCE AND WINTERZING................................................................................................36
5.1 Maintenance........................................................................................................... 36
5.2 Winterizing.............................................................................................................. 36

1
1. FOREWORD
1.1. Read the Manual Before Operation
WARNING
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.
Be aware that refrigerants may not contain an odour.
Initial safety checks shall include:
1That capacitors are discharged: this shall be done in a safe manner to avoid possibility of
sparking;
2That no live electrical components and wiring are exposed while charging, recovering or
purging the system;
3That there is continuity of earth bonding.
Checks to the area
Prior to beginning work on systems containing flammable refrigerants, safety checks are
necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating
system,the following precautions shall be completed prior to conducting work on the system.
Work procedure
Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable
gas or vapour being present while the work is being performed.
General work area
All maintenance staff and others working in the local area shall be instructed on the nature of
work being carried out. Work in confined spaces shall be avoided.
Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to
ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak
detection equipment being used is suitable for use with flammable refrigerants, i.e. non-sparking,
adequately sealed or intrinsically safe.
Presence of fire extinguisher
If any hot work is to be conducted on the refrigerating equipment or any associated parts,
appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2
fire extinguisher adjacent to the charging area.

2
No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing any
pipe work that contains or has contained flammable refrigerant shall use any sources of ignition
in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources,
including cigarette smoking, should be kept sufficiently far away from the site of installation,
repairing, removing and disposal, during which flammable refrigerant can possibly be released
to the surrounding space. Prior to work taking place, the area around the equipment is to be
surveyed to make sure that there are no flammable hazards or ignition risks. “No Smoking” signs
shall be displayed.
Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before breaking into the
system or conducting any hot work. A degree of ventilation shall continue during the period that
the work is carried out. The ventilation should safely disperse any released refrigerant and
preferably expel it externally into the atmosphere.
Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose and to the
correct specification. At all times the manufacturer’s maintenance and service guidelines shall
be followed. If in doubt consult the manufacturer’s technical department for assistance.
The following checks shall be applied to installations using flammable refrigerants:
1The charge size is in accordance with the room size within which the refrigerant containing
parts are installed;
2The ventilation machinery and outlets are operating adequately and are not obstructed;
3If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the
presence of refrigerant;
4Marking to the equipment continues to be visible and legible. Markings and signs that are
illegible shall be corrected;
5Refrigeration pipe or components are installed in a position where they are unlikely to be
exposed to any substance which may corrode refrigerant containing components, unless the
components are constructed of materials which are inherently resistant to being corroded or are
suitably protected against being so corroded.
Repairs to sealed components
DD.5.1 During repairs to sealed components, all electrical supplies shall be disconnected from
the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely
necessary to have an electrical supply to equipment during servicing, then a permanently
operating form of leak detection shall be located at the most critical point to warn of a potentially
hazardous situation.
DD.5.2 Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is affected. This
shall include damage to cables, excessive number of connections, terminals not made to
original specification, damage to seals, incorrect fitting of glands, etc.

3
Ensure that the apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded to the point that they no longer serve
the purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be in
accordance with the manufacturer’s specifications.
Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that
this will not exceed the permissible voltage and current permitted for the equipment in use.
Intrinsically safe components are the only types that can be worked on while live in the presence
of a flammable atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specified by the manufacturer. Other parts may result in the
ignition of refrigerant in the atmosphere from a leak.
NOTE:The use of silicon sealant can inhibit the effectiveness of some types of leak detection
equipment.
Intrinsically safe components do not have to be isolated prior to working on them.
Cabling
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental effects. The check shall also take into account the
effects of aging or continual vibration from sources such as compressors or fans.
Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the searching for or
detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not
be used.
Leak detection methods
The following leak detection methods are deemed acceptable for systems containing flammable
refrigerants.
Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may
not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a
refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable
for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the
refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of
gas (25 % maximum) is confirmed.
Leak detection fluids are suitable for use with most refrigerants but the use of detergents
containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode
the copper pipe-work.
If a leak is suspected, all naked flames shall be removed/extinguished.
If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be
recovered from the system, or isolated (by means of shut off valves) in a part of the system
remote from the leak. Oxygen free nitrogen (OFN) shall then be purged through the system both
before and during the brazing process.

4
Removal and evacuation
When breaking into the refrigerant circuit to make repairs – or for any other purpose –
conventional procedures shall be used. However, it is important that best practice is followed
since flammability is a consideration. The following procedure shall be adhered to:
1Remove refrigerant;
2Purge the circuit with inert gas;
3Evacuate;
4Purge again with inert gas;
5Open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall
be “flushed” with OFN to render the unit safe. This process may need to be repeated several
times. Compressed air or oxygen shall not be used for this task.
Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to fill
until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a
vacuum. This process shall be repeated until no refrigerant is within the system. When the final
OFN charge is used, the system shall be vented down to atmospheric pressure to enable work
to take place. This operation is absolutely vital if brazing operations on the pipework are to take
place.
Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is
ventilation available.
Charging procedures
In addition to conventional charging procedures, the following requirements shall be followed:
1Ensure that contamination of different refrigerants does not occur when using charging
equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant
contained in them. Cylinders shall be kept upright.
2Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.
3Label the system when charging is complete (if not already).
4Extreme care shall be taken not to overfill the refrigeration system. Prior to recharging the
system it shall be pressure tested with OFN. The system shall be leak tested on completion of
charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the
site.
Decommissioning
Before carrying out this procedure, it is essential that the technician is completely familiar with
the equipment and all its detail. It is recommended good practice that all refrigerants are
recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken
in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical
power is available before the task is commenced.
1Become familiar with the equipment and its operation.
2Isolate system electrically.
3Before attempting the procedure ensure that:
Mechanical handling equipment is available, if required, for handling refrigerant cylinders;
All personal protective equipment is available and being used correctly;

5
The recovery process is supervised at all times by a competent person;
Recovery equipment and cylinders conform to the appropriate standards.
4Pump down refrigerant system, if possible.
5If a vacuum is not possible, make a manifold so that refrigerant can be removed from
various parts of the system.
6Make sure that cylinder is situated on the scales before recovery takes place.
7Start the recovery machine and operate in accordance with manufacturer's instructions.
8Do not overfill cylinders. (No more than 80 % volume liquid charge).
9Do not exceed the maximum working pressure of the cylinder, even temporarily.
10 When the cylinders have been filled correctly and the process completed, make sure that
the cylinders and the equipment are removed from site promptly and all isolation valves on the
equipment are closed off.
11 Recovered refrigerant shall not be charged into another refrigeration system unless it has
been cleaned and checked.
Labeling
Equipment shall be labeled stating that it has been decommissioned and emptied of refrigerant.
The label shall be dated and signed. Ensure that there are labels on the equipment stating the
equipment contains flammable refrigerant.
Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is
recommended good practice that all refrigerants are removed safely. When transferring
refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are
employed. Ensure that the correct number of cylinders for holding the total system charge are
available. All cylinders to be used are designated for the recovered refrigerant and labeled for
that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete
with pressure relief valve and associated shut-off valves in good working order. Empty recovery
cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set of instructions concerning the
equipment that is at hand and shall be suitable for the recovery of flammable refrigerants.
In addition, a set of calibrated weighing scales shall be available and in good working order.
Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using
the recovery machine, check that it is in satisfactory working order, has been properly
maintained and that any associated electrical components are sealed to prevent ignition in the
event of a refrigerant release. Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery
cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery
units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that they have been evacuated to
an acceptable level to make certain that flammable refrigerant does not remain within the
lubricant. The evacuation process shall be carried out prior to returning the compressor to the
suppliers. Only electric heating to the compressor body shall be employed to accelerate this
process. When oil is drained from a system, it shall be carried out safely.

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1.2. The Symbol Description of the Device
The precautions listed here are divided into the following types. They are quite important, so be
sure to follow them carefully.Meanings of DANGER, WARNING, CAUTION and NOTE symbols.
Symbols
Meaning
Description
WARNING
The symbol shows that this appliance uses a
flammable refrigerant.
If the refrigerant is leaked and exposed to an external
ignition source, there is a risk of fire.
WARNING
The symbol shows that this appliance uses a low
burning velocity material.Please keep away from fire
source.
CAUTION
This symbol shows that the operation manual should
be read carefully.
CAUTION
This symbol shows that a service personnel should be
handling this equipment with reference to the
installation manual.
CAUTION
This symbol shows that information is available such
as the operating manual or installation manual.
1.3. Statement
To keep users under safe working condition and property safety, please follow the instructions
below：
1Wrong operation may result in injury or damage;
2Please install the unit in compliance with local laws, regulations and standards;
3Confirm power voltage and frequency;
4The unit is only used with grounding sockets;
5Independent switch must be offered with the unit.
1.4. Safety Factors
The following safety factors need to be considered:
1Please read the following warnings before installation;
2Be sure to check the details that need attention, including safety factors;
3After reading the installation instructions, be sure to save them for future reference.
Warning
Make sure that the unit is installed safely and reliably.

7
If the unit is not secure or not installed, it may cause damage. The minimum support weight
required for installation is 21g/㎜²
If the unit was installed in a closed area or limited space, please consider the size of room
and ventilation to prevent suffocation caused by refrigerant leakage.
1Use a specific wire and fasten it to terminal block so that the connection will prevent
pressure from being applied to parts.
2Wrong wiring will cause fire.
Please connect power wire accurately according to wiring diagram on the manual to avoid
burnout of the unit or fire.
3Be sure to use correct material during installing.
Wrong parts or wrong materials may result in fire, electric shock, or falling of the unit.
4Install on the ground safely, please read installation instructions.
Improper installation may result in fire, electric shock, falling of the unit, or water leaking.
5Use professional tools for doing electrical work.
If power supply capacity is insufficient or circuit is not completed, it may cause fire or electric
shock.
6The unit must have grounding device.
If power supply does not have grounding device, be sure not to connect the unit.
7The unit should be only removed and repaired by professional technician.
Improper movement or maintenance of the unit may cause water leakage, electric shock, or fire.
Please find a professional technician to do.
8Don't unplug or plug power during operation.It may cause fire or electric shock.
9Don't touch or operate the unit when your hands are wet. It may cause fire or electric shock.
10 Don't place heaters or other electrical appliances near the power wire.It may cause fire or
electric shock.
11 The water must not be poured directly from the unit. Do not let water to permeate into the
electrical components.
Warning
1Do not install the unit in a location where there may be flammable gas.
2If there is flammable gas around the unit, it will cause explosion.
According to the instruction to carry out drainage system and pipeline work. If drainage system or
pipeline is defective, water leakage will occur. And it should be disposed immediately to prevent
other household products from getting wet and damage.
3Do not clean the unit while power is on. Turn off power before cleaning the unit. If not it may
result in injury from a high-speed fan or electric shock.
4Stop operating the unit once there is a problem or an fault code.
Please turn off power and stop running the unit. Otherwise it may cause electric shock or fire.
5Be careful when the unit is not packed or not installed.
Pay attention to sharp edges and fins of heat exchanger.
6After installation or repair, please confirm refrigerant is not leaking.
If refrigerant is not enough, the unit will not work properly.
7The installation of external unit must be flat and firm.
Avoid abnormal vibration and noise.
8Don’t put your fingers into fan and evaporator.

8
High speed running fan will result in serious injury.
9This device is not designed for people who is physically or mentally weak (including children)
and who does not have experience and knowledge of heating and cooling system. Unless it is
used under direction and supervision of professional technician, or has received training on the
using of this unit. Children must use it under supervision of an adult to ensure that they use the
unit safely. If power wire is damaged, it must be replaced by a professional technician to avoid
danger.

9
2. OVER VIEW OF THE UNIT
2.1. Accessories Supplied With the Unit
After unpacking, please check if you have all the following components.
NO.
Components
Quantity
NO.
Components
Quantity
①
User Manual
1
③
Adapter
2
②
Hose Clamp
2
④
RCD leakage
protection power cord
1
2.2. Dimensions of the Unit
Dimension Unit：(mm)

10
2.3. Main Parts of the Unit
1
Front plate
8
Titanium tube heat
exchanger
15
Pipe assembly
2
Fan motor
9
Right plate
16
Four-way valve
3
PCB box support
10
Water flow switch
17
High efficiency finned heat
exchanger
4
PCB box
11
Handle
18
Back support-left part
5
Rubber feet
12
Back support-right part
19
Wire controller
6
Compressor
13
Back net
20
Power supply waterproof connector
7
Bottom plate
14
EEV
21
Left plate
①
Electrical Box Cover
②
Main Board
③
Electrical Box

11
2.4. Parameter of the Unit
Model
HP-VP501
Heating Capacity: Ambient 26℃, Inlet/Outlet: 26/28℃, Humidity 80%
Heating Capacity (kW)
2.1~5.1
Power Input (kW)
0.168~0.898
COP
12.5~5.68
Heating Capacity: Ambient 15℃, Inlet/Outlet: 26/28℃, Humidity 70%
Heating Capacity (kW)
1.36~3.8
Power Input (kW)
0.194~0.844
COP
7.0~4.5
Cooling Capacity: Ambient 35℃, Inlet/Outlet: 27/-℃
Cooling Capacity (kW)
1.31~3.0
Power Input (kW)
0.262~1.00
EER
5.0~3.0
General Information
Max Power Input (kW)
1.5
Max Current (A)
6.9
Advised Pool Size (m³)
8~20
Controller
LED Controller
Wi-Fi Function
Yes
Power Supply
220-240V~/50Hz
Water Temp. Heating Mode (℃)
15~40℃
Running Ambient Temp. (℃)
-10~43℃
Refrigerant
R32
Compressor Brand/Type
GMCC / Rotary
Manometer
Yes
Gas Control
EEV
Heat Exchanger
Titanium Heat Exchanger
Water Pipe Connection (mm)
φ32 or φ38
Water Flow (m³/h)
2.5
Noise dB(A)
45
Net Weight（kg）
23.5
Net Dimensions(L/W/H)mm
470*290*430
Water Pressure Drop (kPa)
12
Water Proof Class
IPX4

12
3. INSTALLATION AND CONNECTION
3.1. Transportation
1. When storing or moving the heat pump, the heat pump should be at the upright position.
2.When moving the heat pump, do not lift the water union since the titanium heat exchanger
inside the heat pump will be damaged.
3.2. Installation Instruction
3.2.1 Pre-requirements
Equipment necessary for the installation of your heat pump:
1Power supply cable suitable for the unit’s power requirements.
2A By-Pass kit and an assembly of PVC tubing suitable for your installation as well as
stripper, PVC adhesive and sandpaper.
WARNING: The heat pump must be installed by a professional team. The users
are not qualified to install by themselves, otherwise the heat pump might be
damaged and risky for users’ safety.
This section is provided for information purposes only and must be checked and
adapted if necessary according to the actual installation conditions.

13
3A set of wall plugs and expansion screws suitable to attach the unit to your support.
4We recommend that you connect the unit to your installation by means of flexible PVC pipes
in order to reduce the transmission of vibrations.
5Suitable fastening studs may be used to raise the unit.
3.2.2 Location and Space
Please comply with the following rules concerning the choice of heat pump location.
1The unit’s future location must be easily accessible for convenient operation and
maintenance.
2It must be installed on the ground, fixed ideally on a level concrete floor. Ensure that the
floor is sufficiently stable and can support the weight of the unit.
3A water drainage device must be provided close to the unit in order to protect the area
where it is installed.
4If necessary, the unit may be raised by using suitable mounting pads designed to support its
weight.
5Check that the unit is properly ventilated, that the air outlet is not facing the windows of
neighbouring buildings and that the exhaust air cannot return. In addition, provide sufficient
space around the unit for servicing and maintenance operations.
6The unit must not be installed in an area exposed to oil, flammable gases, corrosive
products, sulphur compounds or close to high frequency equipment.
7To prevent mud splashes, do not install the unit near a road or track.
8To avoid causing nuisance to neighbors, make sure the unit is installed so that it is
positioned towards the area that is least sensitive to noise.
9Keep the unit as much as possible out of the reach of children.
10 Installation space:
Unit: mm
Do not put anything when the distance from the heat pump is less than 1 meter.
Leave 500 mm of empty space on the sides and back of the heat pump and free ventilation
above
Do not leave any obstacles above or in front of the device!
3.2.3 Installation Layout
Notice:The filter must be cleaned regularly to ensure that water in the system is clean and avoid
blocking of filter. It is necessary that drainage valve is fixed on the lower water pipe. If the unit is
not running during winter months, please disconnect power supply and let out drain water from

14
unit through drainage valve. If ambient temperature of running unit is below 0℃, please keep
water pump running.
The installation diagram is shown in the following figure:
3.2.4 Electrical Installation
To function safely and maintain the integrity of your electrical system, the unit must be
connected to a general electricity supply in accordance with the following regulations:
1Upstream, the general electricity supply must be protected by a 30mA differential switch.
2The heat pump must be connected to a suitable D-curve circuit breaker in accordance with
current standards and regulations in the country where the system is installed.
3The electricity supply cable must be adapted to match the unit’s rated power and the length
of wiring required by the installation. The cable must be suitable for outdoor use.
4For a three-phase system, it is essential to connect the phases in the correct sequence.If
the phases are inverted, the heat pump’s compressor will not work.
5In places open to the public, it is mandatory to install an emergency stop button close to the
heat pump.
Model
Power Supply Wires
No.
Item
Quantity
1
Mini Heat Pump
1
2
Filter
1
3
Water Pump
1
4
Water Treatment
1
5
Swimming Pool
1

15
Electricity Supply
Cable Diameter
Specification
HP-VP501
220-240V~/ 50Hz
3G 1.5mm²
AWG 16
3.2.5 Electrical Connection
WARNING:Power supply of heat pump must be disconnected before any operation.
Please comply with the following instruction to connect heat pump.
Step 1: Prepare a socket
Step 2: Insert plug into socket as the following picture shows
3.3. Trial After Installation
WARNING:Please check all the wiring carefully before turning on the heat pump.
3.3.1 Inspection Before Trial Running
Before running test, confirm below items and write √ in block;

Correct unit installation

Power supply voltage is the same as unit rated voltage

Correct piping and wiring

Air inlet & outlet port of unit is unblocked

Drainage and venting is unblocked and no water leaking

Leakage protector is working

Piping insulation is working

Ground wire is connected correctly
3.3.2 Trial Running
Step 1:Running test can begin after completing all installation;
Step 2:All wiring and piping should be connected well and carefully checked, then fill water tank
with water before power is switched on;
Step 3:Emptying all air within pipes and water tank, press “on-off” button on control panel to run
the unit at setting temperature;
Step 4:Items need to be checked during running test:
1During the first running, unit current is normal or not;

16
2Each function button on control panel is normal or not;
3Display screen is normal or not;
4Are there any leakage in the whole heating circulation system;
5Condensate drain is normal or not;
6Are there any abnormal sound or vibration during running?
4. REMOTE CONTROLLER OPERATION GUIDANCE
4.1. Control Panel Diagram
4.2. Key Operating Instruction
NO.
Item
Operation Way
1
ON/OFF
When the controller is turned off, only the water temp. is displayed and the
mode cannot be switched;
When press to turn on the controller, the mode light before the
controller turns on.
2
Mode Switching Function
In the startup state, briefly press to switch the heat/silent/cooling
mode;
In the shutdown state, you cannot switch mode.
3
Temp. Setting Function
Under the startup state, briefly press or to directly enter the
temp. setting function of the current mode. At this time, the setting temp.
indicator is flashing.And the user can adjust the setting temp.
through and . After the setting is completed, you have two way
to save the setting value and exit this function:①Waiting for the setting
temp. indicator to stop flashing.②Pressing the or to exit.