MOOV MR550 Service manual

Moov Reversible
SWIMMING POOL HEAT PUMP
Installation & Instruction Manual
MR550-MR650-MR750
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.

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Contents
1. FOREWORD.................................................................................................................................................. 1
1.1 Read the Manual Before Operation .................................................................................................... 1
1.2 Statement........................................................................................................................................... 5
1.3 Safety Factors ..................................................................................................................................... 5
2. OVER VIEW OF THE UNIT.............................................................................................................................. 8
2.1. Accessories Supplied With the Unit .............................................................................................. 8
2.2. Dimensions of the Unit ................................................................................................................. 8
2.3. Main Parts of the Unit .................................................................................................................. 9
2.4. Parameter of the Unit ................................................................................................................. 10
3. INSTALLATION AND CONNECTION .............................................................................................................. 11
3.1. Transportation ............................................................................................................................ 11
3.2. Notice Before Installation ........................................................................................................... 11
3.3. Installation Instruction................................................................................................................ 12
3.3.1 Pre-requirements................................................................................................................... 12
3.3.2 Heat Pump Installation .......................................................................................................... 12
3.3.3 Location and Size ................................................................................................................... 12
3.3.4 Installation Layout ................................................................................................................. 13
3.3.5 Electrical Installation.............................................................................................................. 14
3.3.6 Electrical Connection ............................................................................................................. 14
3.4. Trial After Installation ................................................................................................................. 14
3.4.1 Inspection Before Trial Running ............................................................................................. 15
3.4.2 Trial Running.......................................................................................................................... 15
4. REMOTE CONTROLLER OPERATION GUIDANCE .......................................................................................... 15
4.1. Control Panel Diagram ................................................................................................................ 15
4.2. Key Operating Instruction ........................................................................................................... 16
4.3. System Status ............................................................................................................................. 19
4.4. Fault/Protection Code................................................................................................................. 19
5. MAINTENANCE AND WINTERZING...................................................................................................... 20
5.1. Maintenance ................................................................................................................................... 20
5.2. Winterizing ...................................................................................................................................... 20
5.1 Entretien .......................................................................................................................................... 20
5.2 Hivernage ......................................................................................................................................... 20
6.0 Warranty & After Service………………………………………………………………………………………………………………...21

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1. FOREWORD
1.1 Read the Manual Before Operation
WARNING
Do not use methods 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:
•that capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
•that no live electrical components and wiring are exposed while charging, recovering, or purging
the system;
•that 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 vapor 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. nonspeaking, 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.
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

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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 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:
•the charge size is in accordance with the room size within which the refrigerant containing parts
are installed;
•the ventilation (fan and evaporator) and outlets are operating adequately and are not obstructed;
•if an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the
presence of refrigerant;
•marking to the equipment continues to be visible and legible. Markings and signs that are illegible
shall be corrected;
•refrigeration 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.
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

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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 potentially 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.
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.

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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:
•Ensure 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.
•Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.
•Label the system when charging is complete (if not already).
•Extreme 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 details. 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 begins.
①Become familiar with the equipment and its operation.
②Isolate the 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;
the recovery process is always supervised by a certified specialist;
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.
⑩When 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.

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Labelling
Equipment shall be labelled stating that it has been de-commissioned 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 labelled 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.
1.2 Statement
To keep users under safe working condition and property safety, please follow the instructions below：
•Wrong operation may result in injury or damage;
•Please install the unit in compliance with local laws, regulations and standards;
•Confirm power voltage and frequency;
•The unit is only used with grounding sockets;
•Independent switch must be offered with the unit.
1.3 Safety Factors
The following safety factors need to be considered:
•Please read the following warnings before installation;
•Be sure to check the details that need attention, including safety factors;
•After reading the installation instructions, be sure to save them for future reference.

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Warning
Make sure that the unit is installed safely and reliably.
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.
•Use a specific wire and fasten it to terminal block so that the connection will prevent pressure from
being applied to parts.
•Wrong wiring will cause fire.
Please connect power wire accurately according to wiring diagram on the manual to avoid burnout of
the unit or fire.
•Be sure to use adequate material during installing.
Wrong parts or wrong materials may result in fire, electric shock, or falling of the unit.
•Install on a concrete pad on the ground or on metal brackets on the wall, please read installation
instructions.
Improper installation may result in fire, electric shock, falling of the unit, or water leaking.
•Use professional tools for doing electrical work.
If power supply capacity is insufficient or circuit is not completed, it may cause fire or electric shock.
•The unit must have grounding device.
If power supply does not have grounding device, be sure not to connect the unit.
•The 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.
•Don't unplug or plug power during operation. It may cause fire or electric shock.
•Don't touch or operate the unit when your hands are wet. It may cause fire or electric shock.
•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 a 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.

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⑦The installation of external unit must be flat and firm.
Avoid abnormal vibration and noise.
⑧Don’t put your fingers into fan and evaporator.
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.

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2. OVERVIEW 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
①User Manual 1 ④Drain Pipe 1
②Rubber Blanket 4 ⑤Water Pipe Joint 2
③Drain Connector 1
2.2. Dimensions of the Unit
Model
A
B
C
D
E
F
G
MR550
1000
400
660
681
373
380
98
MR650 1150 455 760 681 430 470 85
MR750 1150 455 760 681 430 470 85

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2.3. Main Parts of the Unit
①Motor Support ⑨Fan Cover ⑰Middle Partition
②Left Plate ⑩Compressor ⑱Wire Controller
③Left Handle ⑪Top Cover ⑲Right Handle
④Fan Motor ⑫Heat exchanger Guard ⑳Right Plate
⑤Fan Blade ⑬Fin Heat exchanger ㉑EEV
⑥Fixed Support ⑭Electrical Box ㉒Titanium heat exchanger
⑦Chassis ⑮Water Flow Switch
⑧Front Plate ⑯4-Way Valve

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2.4. Parameter of the Unit
Model MR550 MR650 MR750
Ambient Temperature: (DB/WB) 80.6°F/75.8°F; Water Inlet/Outlet
Temperature: 80°F.
1Heating Capacity (kBtu/h) 52.9 62.07 73.36
1Rated Input Power (kBtu/h) 8.814 9.68 12.52
1COP 6.0 6.41 5.86
Ambient Temperature: (DB/WB) 50°F/44.3°F; Water Inlet Temperature: 80°F.
2Heating Capacity (kBtu/h) 33.78 39.75 46.54
2Rated Input Power (kBtu/h) 8.445 9.72 11.9
2COP 4.0 4.09 3.91
Power supply(V/Ph/Hz) 208-230V~/ 60Hz
Ambient Temp Range (°F) 23~104
Maximum Water Outlet Temp. (°F) 104
Maximum Input Power (kBtu/h) 16.72 17.4 18.77
Maximum Running Current (A) 20 21.5 26.5
Maximum breaker (A) 30 30 40
Rated Water Flow (gpm) 23.07 27 31.48
Rated Water Pressure Drop (psi) 1.36 1.6 1.84
Refrigerant Quantity (lbs) R410A/3.417 R410A/4.85 R410A/4.41
Water Pipe Connection (inch) 1.5 1.5 1.5
Water Proof Class IPX4 IPX4 IPX4
Electricity Shock Proof Class ⅠⅠⅠ
Sound Pressure at 1m dB(A) 56 57 58
Net Weight (lbs) 143 159 165
Net Dimensions W×D×H (inches) 39.4×15.7×26 45.3×17.9×30
Carton Dimensions W×D×H (inches) 42.1×16.3×26.8 47.8×19.7×31
The technical specification of our heat pumps is provided for information purposes only. We reserve
the right to make changes without notice.
Noise at 39.4 inches comply with Directives EN ISO 3741 and EN ISO 354
Calculations according to an in-ground private swimming pool covered with a solar blanket

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3. INSTALLATION AND CONNECTION
3.1. Transportation
1. When storing or moving the heat pump, the heat pump should be in 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. Notice Before Installation
1.The inlet and outlet water unions may crack if using soft pipes. If so, they should be directed
down to alleviate the weight of the water and pipes on the connectors. We recommend the use
of hard pipes.
2.To guarantee the heating efficiency, the water pipe length should be ≤10m between the pool
and the heat pump.
WARNING: The heat pump must be installed by a professional and connected
by a certified electrician. 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.

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3.3. Installation Instruction
3.3.1 Pre-requirements
Equipment necessary for the installation of your heat pump:
①Power supply cable suitable for the unit’s power requirements.
②An optional by-pass can be installed but it has to be either fully open or fully closed. Do not
control water with valves halfway open. This may send a signal of no flow to the PCB board.
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
to reduce the transmission of vibrations.
⑤Suitable fastening studs may be used to raise the unit.
3.3.2 Heat Pump Installation
①The frame must be fixed by bolts (M10) to concrete foundation or brackets. The concrete
foundation must be solid; the bracket must be strong enough and anti-rust treated;
②The heat pump needs a water pump (Supplied by the user). The recommended pump
specification-flux: refer to Technical Parameter, Max. lift ≥10m;
③When the heat pump is running, there will be condensation water discharged from the bottom,
please pay attention to it. Please insert the drainage tube(accessory) into the hole and clip it well,
then connect a pipe to drain off the condensation water. Install the heat pump, raising it at least
10 cm with solid water-resistant pads, then connect the drainage pipe to the opening located
under the pump.
3.3.3 Location and Size
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

13
around the unit for servicing and maintenance operations.
⑥The unit must not be installed in an area exposed to oil, flammable gases, corrosive products,
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.
⑩Installation space:
Unit: mm
Do not put anything less than one meter in front of the heat pump.
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!
3.3.4 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
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:
No.
Item
Quantity
No.
Item
Quantity
1 Swimming Pump Unit 1 7 PH Regulator 1

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3.3.5 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.
⑤
In places open to the public, it is mandatory to install an emergency stop button close to the
heat pump.
Model
Electricity Supply Specification
MR550
208-230V~/60Hz AWG 12
MR650
MR750 AWG 10
3.3.6 Electrical Connection
WARNING:Power supply of heat pump must be disconnected before any operation.
Please comply with the following instructions to connect heat pump.
Step 1: Detach electrical side panel with a screwdriver to access electrical terminal block.
Step 2: Insert cable into heat pump unit port.
Step 3: Connect power supply cable to terminal block according to the diagram below. In North
America, we do not recommend wiring the pool pump through the heat pump.
3.4. After Installation
WARNING:Please check all the wiring carefully before turning on the heat pump.
No.
Item
Quantity
No.
Item
Quantity
2 Y-Type Filter 1 8 Sand Tank Filter 1
3
One-Way Valve
1
9
Flocculator
1
4 Circulating Water Pump 1 10 Disinfector 1
5 Hair Collector 1 11 Metering Pump 3
6 Stop Valve 7

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3.4.1 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
3.4.2 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:
•During the first running, unit current is normal;
•Each function button on control panel is normal;
•Display screen is normal or;
•Are there any leakage in the whole heating circulation system;
•Condensate drain is normal;
•Are there any abnormal sound or vibration during running?
4. REMOTE CONTROLLER OPERATION GUIDANCE
4.1. Control Panel Diagram

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Table 1
Icon Meaning Icon Meaning
WI-FI Timer on
Electric heating Timer off
Heating mode Smart mode
Defrost state(Flash) Powerful mode
Automatic mode Silent mode
Cooling mode
Table 2
Key Meaning Function
Mode key Switch mode and set parameter
Up key Manual defrost and set water temp.
Power key Turn ON/OFF, lock/unlock and
return to main
interface
Down key Check parameter and set water temp.
Timer key Set timer ON/OFF
4.2. Key Operating Instruction

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No. Item Operation Way
1 ON/OFF On the thermostat, press " " to turn on / off.
2 Query System
Parameter
Press " "for 3s enter the parameter query interface. With " " and "
" to query the parameters.
Press" "or no operation in 30s, the setting will go back to normal.
3 Select Running
Mode Press " " to select mode among Heating/Cooling /Automatic mode.
5 Set Temp.
Press"" and " " to set the temp. Press" "or no operation in 5s, it
will save setting and return to main interface. Press" "to quit setting and
return to main interface .
6 Set Clock
Press"" for 3s to enter the current time hour setting. The hour part flash.
With " " and " " to adjust. Press " " enter the current time minute
setting. The minute part flash. With " " and " " to adjust. At the
minute setting interface, press" "or no operation in 5s, it will save setting
and return to main interface. At the hour setting interface, press" "or no
operation in 15s, it will quit setting and return to main interface .