RITAL GROUP RI-F50SPR3INVM-TR Service manual

SWIMMING POOL 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.

1
CONTENT
1. FOREWORD ...................................................................................................................................................... 1
1.1. Statement .............................................................................................................................................. 1
1.2. Safety Factors .........................................................................................................................................1
2. OVER VIEW OF THE UNIT ................................................................................................................................. 2
2.1. Accessories Supplied With the Unit ......................................................................................................2
2.2. Dimensions of the Unit ......................................................................................................................... 3
2.3. Main Parts of the Unit ...........................................................................................................................4
2.4. Parameter of the Unit ........................................................................................................................... 5
3. INSTALLATION AND CONNECTION ....................................................................................................................8
3.1. Transportation .......................................................................................................................................8
3.2. Notice Before Installation ..................................................................................................................... 8
3.3. Installation Instruction ..........................................................................................................................9
3.3.1 Pre-requirements .........................................................................................................................9
3.3.2 Heat Pump Installation ................................................................................................................ 9
3.3.3 Location and Space .................................................................................................................... 10
3.3.4 Installation Layout ..................................................................................................................... 10
3.3.5 Electrical Installation ..................................................................................................................11
3.3.6 Electrical Connection ................................................................................................................. 12
3.4. Trial After Installation ......................................................................................................................... 13
3.4.1 Inspection Before Trial Running .................................................................................................13
3.4.2 Trial Running .............................................................................................................................. 13
4. REMOTE CONTROLLER OPERATION GUIDANCE ............................................................................................. 14
4.1. Control Panel Diagram ........................................................................................................................ 14
Basic Icons ...........................................................................................................................................14
4.2. Key Operating Instruction ................................................................................................................... 15
4.3. System Status Parameter Query ......................................................................................................... 17
4.4. Trouble Shooting .................................................................................................................................18
Fault code and solution ............................................................................................................... 18
4.5. Wi-Fi Settings ...................................................................................................................................... 22
4.6.1 Software Installation.............................................................................................................. 22
4.6.2 Software Startup.................................................................................................................... 23
4.6.3 Software Registration and Configuration........................................................................... 23
4.6.4 Software Function Operation............................................................................................... 31
Timer setting.............................................................................................................................. 35
4.6.5 Device Removal..................................................................................................................... 36
5. MAINTENANCE AND WINTERZING .................................................................................................................37
5.1. Maintenance ....................................................................................................................................... 37
Annual maintenance.........................................................................................................................37
5.2. Winterizing ..........................................................................................................................................37

1
1. FOREWORD
1.1. 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.
1.2. 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.
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

2
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.
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.
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
④
Drain Pipe
1

3
②
Rubber Blanket
4
⑤
Water Pipe Joint
2
③
Drain Connector
1
2.2. Dimensions of the Unit
Dimension Unit：(mm)
Model
A
B
C
D
E
F
G
RI-F50SPR3INVM-TR
910
380
620
591
330
280
98
RI-F70SPR3INVM-TR
RI-F90SPR3INVM-TR
RI-F110SPR3INVM-TR
1000
405
660
681
373
380
98
RI-F150SPR3INVM-TR
RI-F180SPR3INVM-TR
RI-F210SPR3TINVM-TR
1130
485
775
653
430
390
107
RI-F250SPR3TINVM-TR
RI-F250SPR3TINVM-TR

4
2.3. Main Parts of the Unit
1
Front plate
9
Right plate
17
Top cover
2
Fan
10
Handle
18
Electrical box cover
3
Motor
11
controller / display
19
Electrical box
4
Motor support
12
EEV component
20
Left plate
5
Right plate
13
Middle plate
6
Compressor
14
Evaporator
7
Four way valve
15
Back plate
8
Titanium heat exchanger
16
Pillar
①
Electrical Box Cover
②
Main Board
③
Electrical Box

5
2.4. Parameter of the Unit
Table-1
Model：RI
50SPR3INVM-TR
70SPR3INVM-TR
90SPR3INVM-TR
Ambient Temp.: (DB/WB) 27°C/24.3°C; Water Inlet/Outlet Temp.: 26°C/28°C.
Heating Capacity (kW)
1.51~5.52
1.5~7.21
1.8~9.48
Power Input (kW)
0.09~0.82
0.09~1.09
0.11~1.44
COP
16.6~6.7
16~6.6
16.4~6.6
Boost Mode
Heating Capacity (kW)
5.52
7.21
9.48
COP
6.7
6.6
6.6
Smart Mode
Heating Capacity (kW)
4.5
5.8
7.8
COP
8.91
9.03
9.02
Silent Mode
Heating Capacity (kW)
2.1
2.8
3.5
COP
14.1
14.2
14.2
Ambient Temp.: (DB/WB) 15°C/12°C; Water Inlet Temp.: 26°C.
Heating Capacity (kW)
1.11~3.91
1.3~5.42
1.51~7.89
Power Input (kW)
0.13~0.75
0.16~1.06
0.18~1.52
COP
8.4~5.2
8.1~5.1
8.3~5.2
Boost Mode
Heating Capacity (kW)
3.91
5.42
7.89
COP
5.2
5.1
5.2
Smart Mode
Heating Capacity (kW)
3.1
4.3
6.1
COP
6.21
6.23
6.22
Silent Mode
Heating Capacity (kW)
2.2
2.4
2.5
COP
7.59
7.55
7.58
Power Supply
220-240V~/ 50Hz
Max Power Input (kW)
1.31
1.61
1.75
Max Current(A)
5.95
7.32
7.96
Heating Water Temp. Range(°C)
5~40
Running Ambient Temp. Range(°C)
-10~40
Advised Swimming Pool Size(m³)
10~20
15~30
20~40
Refrigerant
R410A
Compressor
MITSUBISHI ELECTRIC ( DC Inverter)
Air Side Heat Exchanger
Hydrophilic Fin Exchanger
Water Side Heat Exchanger
Titanium Tube Heat Exchanger
Water Flow(m³/h)
2.4
3.1
4.1
Net Dimension LxWxH (mm)
910×380×620
Water Pipe Connection (Inlet /Outlet)(mm)
50
Net Weight (kg)
33
37
39
Noise Level dB(A)
37～47
38～48
39～49
Max./Min. Water Operating Pressure (MPa)
0.6/0.1
Max./Min. Water Inlet Pressure (MPa)
0.6/0.1
Fuse Specification
65TS/25A/250VAC

6
Table-2
Model:RI
110SPR3INVM-TR
150SPR3INVM-TR
180SPR3INVM-TR
Ambient Temp.: (DB/WB) 27°C/24.3°C; Water Inlet/Outlet Temp.: 26°C/28°C.
Heating Capacity (kW)
2.8~11.51
3.48~15.3
4.34~18.1
Power Input (kW)
0.17~1.74
0.22~2.35
0.27~2.81
COP
16.5~6.6
15.9~6.5
16.1~6.4
Boost
Mode
Heating Capacity (kW)
11.51
15.3
18.1
COP
6.6
6.5
6.4
Smart
Mode
Heating Capacity (kW)
9.1
11.55
14.01
COP
9.32
9.18
9
Silent
Mode
Heating Capacity (kW)
5.5
7.35
8.7
COP
13.8
13.6
13.2
Ambient Temp.: (DB/WB) 15°C/12°C; Water Inlet Temp.: 26°C.
Heating Capacity (kW)
2.2~8.21
2.96~11.14
3.44~13.35
Power Input (kW)
0.27~1.61
0.36~2.19
0.41~2.61
COP
8.1~5.1
8.3~5.1
8.3~5.1
Boost
Mode
Heating Capacity (kW)
8.21
11.14
13.35
COP
5.1
5.1
5.1
Smart
Mode
Heating Capacity (kW)
6.58
8.65
10.55
COP
6.19
6.2
6.16
Silent
Mode
Heating Capacity (kW)
4.37
5.55
6.72
COP
7.53
7.55
7.54
Power Supply
220-240V~/ 50Hz
Max Power Input (kW)
2.3
3.2
3.9
Max Current(A)
10.5
14.5
17.7
Heating Temp. Range(°C)
5~40
Running Temp. Range(°C)
-10~40
Advised Swimming Pool Size(m³)
25~50
30~60
35~70
Refrigerant
R410A
Compressor
MITSUBISHI ELECTRIC ( DC Inverter）
Air Side Heat Exchanger
Hydrophilic Fin Exchanger
Water Side Heat Exchanger
Titanium Tube Heat Exchanger
Water Flow(m³/h)
4.9
6.6
7.7
Net Dimension LxWxH (mm)
1000×405×660
Water Pipe Connection (Inlet
/Outlet)(mm)
50
Net Weight (kg)
44
47
52
Noise Level dB(A)
41～51
42～52
43～53
Max./Min. Water Operating Pressure
(MPa)
0.6/0.1
Max./Min. Water Inlet Pressure (MPa)
0.6/0.1
Fuse Specification
65TS/30A/250VAC
65TS/30A/250VAC

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Table-3
Model:RI
210SPR3TINVM-TR
250SPR3TINVM-TR
280SPR3TINVM-TR
Ambient Temp.: (DB/WB) 27°C/24.3°C; Water Inlet/Outlet Temp.: 26°C/28°C.
Heating Capacity (kW)
4.72~21.21
5.05~25.28
5.4~28.06
Power Input (kW)
0.29~3.26
0.31~3.89
0.33~4.32
COP
16.2~6.5
16.2~6.5
16.3~6.51
Boost Mode
Heating Capacity (kW)
21.21
25.28
28.06
COP
6.5
6.5
6.51
Smart Mode
Heating Capacity (kW)
17
20.4
22.61
COP
9.35
8.9
8.92
Silent Mode
Heating Capacity (kW)
10.2
12.3
13.91
COP
13.1
13.6
13.5
Ambient Temp.: (DB/WB) 15°C/12°C; Water Inlet Temp.: 26°C.
Heating Capacity (kW)
3.51- 14.21
3.81- 17.08
4.04~18.49
Power Input (kW)
0.43~2.78
0.48~3.35
0.49~3.56
COP
8.1~5.1
8~5.1
8.2~5.2
Boost Mode
Heating Capacity (kW)
14.21
17.08
18.49
COP
5.1
5.1
5.2
Smart Mode
Heating Capacity (kW)
11.2
13.5
14.63
COP
6.2
6.21
6.18
Silent Mode
Heating Capacity (kW)
7.5
8.3
9.31
COP
7.5
7.52
7.53
Power Supply
380-415V/3N~/50Hz
Max Power Input (kW)
4.1
4.5
5.4
Max Current(A)
7.3
8.5
10.2
Heating Temp. Range(°C)
5~40
Running Temp. Range(°C)
-10~40
Advised Swimming Pool Size(m³)
45~80
55~90
65~100
Refrigerant
R410A
Compressor
MITSUBISHI ELECTRIC
Air Side Heat Exchanger
Hydrophilic Fin Exchanger
Water Side Heat Exchanger
Titanium Tube Heat Exchanger
Water Flow(m³/h)
9.1
10.8
12
Net Dimension LxWxH (mm)
1130×485×775
Water Pipe Connection
(Inlet/Outlet)(mm)
50
Net Weight (kg)
75
85
90
Noise Level dB(A)
35~50
35~52
36~52
Max./Min. Water Operating Pressure
(MPa)
0.6/0.1
Max./Min. Water Inlet Pressure (MPa)
0.6/0.1
Fuse specification
65TS/5A/250VAC
65TS/20A/250VAC

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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. Notice Before Installation
1.The inlet and outlet water unions can’t bear the weight of soft pipes. The heat pump must be
connected with hard pipes!
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.

9
2.In order to guarantee the heating efficiency, the water pipe length should be ≤10m between
the pool and the heat pump.
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.
2A By-Pass kit and an assembly of PVC tubing suitable for your installation as well as stripper,
PVC adhesive and sandpaper.
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.
3.3.2 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 Steps
located under the pump.

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3.3.3 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 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 Temp. of running unit is below 0℃, please keep water
pump running.
The installation diagram is shown in the following figure:

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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.
5In places open to the public, it is mandatory to install an emergency stop button close to the
heat pump.
Model
Power Supply Wires
Electricity Supply
Cable Diameter
Specification
RI-F50SPR3INVM-TR
220-240V~/ 50Hz
3G 1.5mm²
AWG 16
RI-F70SPR3INVM-TR
3G 1.5mm²
AWG 16
RI-F90SPR3INVM-TR
3G 2.5mm²
AWG 14
RT-F110SPR3INVM-TR
3G 2.5mm²
AWG 14
RT-F150SPR3INVM-TR
3G 4.0mm²
AWG 12
RT-F180SPR3INVM -TR
3G 4.0mm²
AWG 12
RI-F210SPR3INVM-TR
3G 4.0mm²
AWG 12
No.
Item
Quantity
No.
Item
Quantity
1
Swimming Pump Unit
1
7
PH Regulator
1
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

12
RI-F250SPR3INVM-TR
3G 4.0mm²
AWG 12
RI-F210SPR3TINVM-TR
380-415V/3N~/50Hz
5G 1.5mm²
AWG 16
RI-F250SPR3TINVM-TR
5G 2.5mm²
AWG 14
RI-F280SPR3TINVM-TR
5G 2.5mm²
AWG 14
3.3.6 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: Detach electrical side panel by 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.
RI-F50SPR3INVM-TR, RI-F70SPR3INVM-TR, RI-F90SPR3INVM-TR,
RI-F110SPR3INVM-TR, RI-F150SPR3INVM-TR, RI-F180SPR3INVM-TR
RI-F210SPR3INVM-TR, RT-F250SPR3INVM-TR, RT-F280SPR3INVM-TR
RI-F210SPR3INVM-TR , RI-F250SPR3TINVM-TR , RI-F250SPR3TINVM-TR

13
3.4. Trial After Installation
WARNING:Please check all the wiring carefully before turning on the heat pump.
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 Temp.;
Step 4:Items need to be checked during running test:
1During the first running, unit current is normal or not;
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?

14
4. REMOTE CONTROLLER OPERATION GUIDANCE
4.1. Control Panel Diagram
Basic Icons
Symbol
Name
Symbol
Name
Symbol
Name
On-off
Heating Mode or Defrosting
Silent Mode
Set
Cooling Mode
Smart Mode
Up
Key lock
Powerful Mode
Down
Fault
Mode
Wi-Fi

15
4.2. Key Operating Instruction
NO.
Item
Operation Way
1
Unlock
Press the " " and " " keys for 3 seconds in the main interface to unlock
/lock the screen.
2
On-off
In the main interface, press and hold the " " key for 3 seconds to turn on / off.
3
Check Running
Parameters
In the main interface, press and hold the " " key for 3 seconds to enter the
unit status parameter query, cooperate with the " " and " " keys for
parameter browsing, and press the " " key to exit the parameter query.(See
table 1)
4
Choose Mode
In the power on state, long press " " for 3 seconds to switch the working
mode: heating mode and cooling mode.
5
Mode Switch
In the power on interface, press " " to switch frequency mode: silent, smart
and powerful mode.
6
Adjust Temperature
In the power on interface, press " " or " " to adjust the current mode
setting temperature.
7
Adjust Time
Long press " " and " " for 3 seconds to enter the clock setting state. First,
the hour flashes, indicating that the hour value of the current time can be
adjusted through " " and " " keys. Every time you press the " " key for
plus one hour, every time you press the " " key for minus one hour. If you
hold down the " " key or " " key, the hours will be incremented or
decremented automatically. After setting the hour value, press " " again; At
this time, the minute flashes, indicating that the minute value of the current time
can be adjusted through the " " and " "key. After setting the minute
value, press " " again to finish.

16
NO.
Item
Operation Way
8
Adjust Timing
Press " " for 3 seconds to enter the timing setting:
Enter timing selection,the hour of "Timing On 1" will flash ,collect " " and
" "can set hour; Click " " again to switch to the minute of "Timing On
1" ,collect " " and " " can set minute;
Click " " again to set "Timing Off 1" in the same way.
Other time period setting in turn and so on;
Press" "can Exit and Enter;
Back to main interface, it will show the number of scheduled time periods;
Cancel timing setting:
When the “Timing On” and “Timing Off” are the same, the timer setting of the
current time period is canceled.
9
Forced Defrosting
Press the " "and " " keys to enter the forced defrost mode.
When entering the defrost, showing flashes" ".
10
Frequency Mode
Switch
In the power on interface, press “ ” to switch frequency mode: silent mode,
smart mode, powerful mode.
11
Celsius/Fahrenheit
switch
When unit is off ,press " "and" " for 3 seconds in main interface to switch
Celsius/Fahrenheit
12
Turn on Electric
Heater Manually
Long press " " for 3 seconds in main interface to turn on/off the electric
heater function.

17
NO.
Item
Operation Way
13
Advanced Parameter
Setting
Long press " "and" " for 5s to enter password interface, it shows 0000 in
the time area; Press " " and " " to enter password, press “ ” to switch
and confirm.
Password 9615: After the input is complete, enter the state of manual frequency
setting. Press " " and " " to on the home page to adjust the manual
frequency.
Password 8866: After the input is complete, it enters the frequency checking
state. The original "hour" displays "target frequency", and the original "minute"
displays "Running frequency".
Password 4180:After the input is complete, enter the inverter parameter setting
interface after the buzzer beeps twice.(See table 2)
Password 0814:After the input is complete, enter the system parameters
interface after the buzzer beeps twice.(See table 3)
4.3. System Status Parameter Query
Code
Meanings
A01
Water inlet temperature
A02
Water outlet temperature
A03
Ambient temperature
A04
Exhaust temperature
A05
Suction temperature
A06
Heating coil temperature
A07
Cooling coil temperature
A08
Main EEV Steps
A09
Reserved
A10
Compressor current
A11
IPM temperature
A12
DC bus voltage value
A13
Actual speed of compressor
A14
DC fan speed