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Power World PW030-DKZLRS-E Technical Manual

R290 heat pump (with wifi app)
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TECHNICAL MANUAL
Applicable model:
PW030-DKZLRS-E/S
PW040-DKZLRS-E/S
PW050-DKZLRS-E/S
PW055-DKZLRS-E/S
PW060-DKZLRS-E/S
PW070-DKZLRS-E/S
PW040-DKZLRS-E
PW050-DKZLRS-E
PW055-DKZLRS-E
PW060-DKZLRS-E
PW070-DKZLRS-E
Important safety instructions
Read and follow all of the instructions
Save these instructions
Version:1.4
Updating date:20240820

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Summary of Contents for Power World PW030-DKZLRS-E

  • Page 1 TECHNICAL MANUAL Applicable model: PW030-DKZLRS-E/S PW040-DKZLRS-E/S PW050-DKZLRS-E/S PW055-DKZLRS-E/S PW060-DKZLRS-E/S PW070-DKZLRS-E/S PW040-DKZLRS-E PW050-DKZLRS-E PW055-DKZLRS-E PW060-DKZLRS-E PW070-DKZLRS-E Important safety instructions Read and follow all of the instructions Save these instructions Version:1.4 Updating date:20240820...

  • Page 2: Table Of Contents

    Catalogue Preface ...............................1 Declaration: This device is consistent with the ERP testing device ............1 Safety Code: Please follow these safety instructions closely to prevent accidents ........1 1.Safety Procedures ..........................6 2.Working principle ..........................9 3.Specifications ..........................10 3.1 Dimensions (in mm) ........................ 10 3.2 Product data ..........................
  • Page 3 8.3 Maintenance of Main Electrical Components ................64 8.4 Maintenance of Main Water pipeline Components ..............64 8.5 Maintenance of anti-freeze ....................... 65 8.6 Refrigerant Charging ....................... 66 8.7 Inspection and Maintenance on the Heat Pump ................67 8.8 Precautions for heat pump operation in summer .................69 9.Heat pump operation ........................

  • Page 4: Preface

    Preface The R290 Full DC Inverter air source heat pump transfers heat from the surrounding air to the water, providing high temperature hot water up to 70℃. This high-temperature heat pump is widely used for heating. With innovative and advanced technology, heat pumps can operate at ambient temperatures of-25℃...
  • Page 5 2.4. Do not use flammable materials, such as sprays or other flammable gases. 2.5 Discharge static electricity: before starting work, safely touch grounded objects, such as ground wire or metal water pipe. 2.6 Do not remove, block, or bridge the safety equipment. 2.7 Prohibit to made any change of the heat pump inle/outlet pipe, electrical connection or cable 2.8 No components or seals shall be removed.
  • Page 6 ■ Make sure the System is securely connected. ■ Wear appropriate personal protective equipment for any work. DANGER: burns or scald. Cold surfaces may cause frostbite. ■ Turn off the equipment and let it cool or heat up before performing the maintenance service. ■...
  • Page 7 ■ The work of the electrical equipment can only be carried out by the qualified electricians. ■ Before the first operation, all safety-related key points must be inspected by a specifically certified heating contractor. The system must be operated by the system installer or a qualified person authorized by the installer.
  • Page 8 If the heat pump get freezen, take the following measures: Note that freezing in the fan area of the condensing disk and the outdoor unit may cause damage to the equipment. Note the following items: ■ Do not use mechanical items / tools to de-ice. ■...

  • Page 9: Safety Procedures

    1.Safety Procedures Read and follow all the warnings and installation instructions before installing this product. Failure to comply with the safety warnings and installation instructions may result in serious injury, death, or property damage. The following symbols are very important. Please be sure to understand their meaning as it involves the product and your personal safety.
  • Page 10 Do not toucht the air outlet grille when the Do not inject water or any liquid Do not touch the power plug with your into the product as it may cause fan motor is running. wet hands. leakage or failure of the product. fuse When the power cord is loose or damaged, please Please choose the correct fuse or...
  • Page 11 3. Do not use towels, paint, gasoline, alcohol and other flammable items while near this machine, as this could cause a fire. 4. The main power switch of the unit should be placed in a place out of reach of children to prevent children from contacting the power switch and causing potential safety risks.

  • Page 12: Working Principle

    2.Working principle...

  • Page 13: Specifications

    3.Specifications 3.1 Dimensions (in mm) PW030-DKZLRS-E/S PW040-DKZLRS-E/S PW040-DKZLRS-E 1079.3...
  • Page 14 PW050-DKZLRS-E/S PW050-DKZLRS-E 1079 PW055-DKZLRS-E /S PW060-DKZLRS-E S PW055-DKZLRS-E PW060-DKZLRS-E 1072...

  • Page 15: Product Data

    PW070-DKZLRS-E /S PW070-DKZLRS-E 3.2 Product data (1) These models are a single-phase 230V / 1Ph / 50Hz ~60Hz power supply Technical data BOM code CP-RW0300114 CP-RW0400086 CP-RW0500125 CP-RW0550002 CP-RW0600075 CP-RW0700021-01 PW030-DKZLRS- PW040-DKZLRS- PW050-DKZLRS- PW055-DKZLRS PW060-DKZLRS Model PW070-DKZLRS-E/S -E/S -E/S Heating Condition - Ambient Temp.（DB/WB）: 7/6℃，Water Temp.（In/Out）：30/35℃ Heating Capacity 3.3~8.3 4.5~11.4...
  • Page 16 COP Range 3.52~4.69 3.55~4.71 3.54~4.67 3.54~4.67 3.51~4.66 3.50~4.66 Cooling Condition - Ambient Temp.（DB/WB ）:35/24℃，Water Temp.（In/Out ）：12/7℃ Cooling Capacity 2.4~5.8 3.3~8.2 4.3~10.8 5.6~14.1 6.2~15.3 6.9~17.0 Range (kW) Cooling Power 0.79~2.19 1.08~3.07 1.39~3.99 1.80~5.38 1.99~5.60 2.21~6.49 Input Range(kW) EER Range 2.65~3.04 2.67~3.06 2.71~3.10 2.62~3.11 2.73~3.12...
  • Page 17 (2) These models are a three-phase 380V / 3Ph / 50-60Hz power supply Technical data BOM code CP-RW0400094 CP-RW0500126 CP-RW0550001 CP-RW0600061 CP-RW0700020-01 Model PW040-DKZLRS-E PW050-DKZLRS-E PW055-DKZLRS-E PW060-DKZLRS-E PW070-DKZLRS-E Heating Condition - Ambient Temp.（DB/WB）: 7/6℃，Water Temp.（In/Out）：30/35℃ Heating Capacity 4.5~11.4 5.9~14.8 7.2~18.2 8.8~22.0 9.6~24.0 Range (kW)

  • Page 18: Introduction Of The Key Component Of The Heat Pump System

    Net Dimension 1080×460×960 1080×480×1060 1080×480×1372 1080×480×1372 1160×480×1580 (L/W/H) mm Operation Ambient -25~43℃ Temp. Operating water 28~65℃（DHW ） temperature (℃) Operating water 15~70℃（Heating ） temperature (℃) Operating water 7~35℃（Cooling ） temperature (℃) Note: The above design and specifications are subject to change without prior notice for product improvement. Detailed specifications of the units please refer to nameplate on the units.
  • Page 19 The fin-type heat exchange can be used as a condenser and as an evaporator. Heating for the evaporator, the low temperature and low pressure liquid refrigerant evaporation into a gas, to absorb the heat in the air. For refrigeration finned type heat exchange condenser, the high temperature and high pressure gaseous refrigerant is condensed into a liquid of medium temperature and high pressure,...
  • Page 20 Low pressure protection of the unit, compressor / fan frequency limit reduction function control, Pressure sensors suction overheat control, low pressure is used for low pressure protection and overheat control. High pressure switch: When the exhaust pressure of the heat pump system is higher than the protection value of the high pressure switch, the high pressure switch is disconnected and forces the unit to stop working to avoid damage to the...
  • Page 21 The outdoor fan provides strong air convection in the fin heat exchange to enhance the heat transfer Outdoor fan (DC motor + exchange effect. wind blade) The following parts are random accessories along with units and accessories often used in the installation; Automatically drain air from the water system;...
  • Page 22 Accessories along with the machine. Used for Heat pump rubber pad shock absorption and vibration protection of the foot of the main unit of the heat pump on site; When the unit is installed for the first time, the residual air in a few pipes cannot be discharged Manual exhaust valve through the automatic exhaust valve.

  • Page 23: Exploded Diagram

    3.4 Exploded diagram PW030-DKZLRS-E/S PW040-DKZLRS-E/S PW040-DKZLRS-E...
  • Page 24 PW050-DKZLRS-E/S PW050-DKZLRS-E...
  • Page 25 PW055-DKZLRS-E /S PW060-DKZLRS-E S PW070-DKZLRS-E /S PW055-DKZLRS-E PW060-DKZLRS-E PW070-DKZLRS-E...

  • Page 26: Selection

    4.Selection 4.1 Heat Pump Selection Note: The working efficiency of heat pump is closely related to the environmental conditions, such as changes in ambient temperature, humidity, outlet water temperature, altitude, water pipe length, and insulation measures, all of which can affect the heating effect of heat pumps. 4.1.1 Calculate method Generally, using the area indicator method, calculate the required cooling/heating capacity of the room based on the room area and cooling/heating load estimation indicators.

  • Page 27: Domestic Hot Water Tank

    Step 1: Take its heat load index as 80W/㎡, and calculate the total heat load demand Q=150 × 80=12KW Step 2: Query the R290 heat pumps of Power World, and analyze the variable operating conditions table and curve chart of PW060. When the default water outlet temp is 35 ℃ and the outdoor temp is -15 ℃, it’s maximum heating capacity is 13.7KW, which meets the load requirements.
  • Page 28 Villa Daily/each person 70～100 According to the above standards, 50L hot water /person/day is taken, and the target water temperature is 55 ℃ for residential buildings. 4.2.2 Calculation case For example, if the building area is 150 m² and there are 4 persons, the total hot water demand is 200L per day.

  • Page 29: Circulation Water Pump

    4.3 Circulation Water Pump Circulating water pump: First, match the flow rate of the water pump, then match the head, and finally determine the power. The water flow rate of the circulating water pump is ≥ the rated water flow of the heat pump×(1.2~1.3) The water pump should be horizontally installed on the main pipe.

  • Page 30: Three Way Valve

    (3) The pre-filling pressure of the expansion tank is equal to the set pressure of the water replenishment valve. (4) It is recommended to check the inflation pressure of the expansion tank every 1-2 years. The following table shows the recommended selection values: Model Capacity(KW) Volume(L)

  • Page 31: Water Filter

    cause numerous adverse effects that can damage the system and reduce thermal effects. If these gases cannot be discharged in a timely manner, it can lead to many adverse consequences. Basic requirements: The material should be brass or stainless steel, and suitable for water/ethylene glycol (up to 30%) solution.
  • Page 32 exposed to environments below 0℃, caution must be taken to prevent the system from freezing. In the event of a power failure, the device's own antifreeze protection function will fail. Due to the possibility of power outages when left unattended, it’s recommended to use antifreeze in the water system. The following parameters for ethylene glycol and propylene glycol antifreeze are for reference only.

  • Page 33: Installation

    5.Installation 5.1 Installation method 5.1.1 Heating, Refrigeration and domestic hot water (secondary Circulation)
  • Page 34 5.1.2 Heating, Refrigeration and domestic hot water (Primary Circulation)

  • Page 35: Preparation Work And Precautions Before Installation

    5.2 Preparation work and precautions before installation 5.2.1 Product installation instructions and special precautions A. the heat pump heating and hot water system should be a closed-loop system, if using antifreeze liquid or other liquid, please consult to Manufacture; B. Filter must be installed before the inlet pipe of the heat pump unit, and the number of filter mesh is above C.
  • Page 36 Warning 1. Before installation, it shall be confirmed that the voltage of the power grid is consistent with the required voltage of the unit, and whether the open load capacity of the wires and sockets meets the maximum power requirements. 2.
  • Page 37 qualified professional repair personnel; 5. If the parts of the unit are damaged, please hand them over to the professional personnel for maintenance, and use the special maintenance parts provided by the company; 6. If the heat pump unit will not be used for a long time (more than 2 weeks), hot water pipe system may produce hydrogen, which is easily burning.
  • Page 38 Active wrench Remove screws and so (10-inch) Active wrench Remove the pipe valve, (14-inch) Laryngeal forceps Remove the pipe valve, (20 inches) Long-nose pliers Line cutting, terminal removal, etc Hex wrench Open the stop valve, 4~12mm valve, etc Electric screw Remove screws, etc driver...
  • Page 39 Test current, voltage, Clamp meter resistance, capacitance, multi-meter Vacuum of the Vacuum pump refrigeration system High and low Measure the pressure gauge refrigeration system refrigerant tube pressure, vacuum, etc strapping, Scissors thermal insulation cotton, etc Measure the distance, Band tape the length, etc...

  • Page 40: Installation Position

    Record data, Marker pen mark, etc Note: Other special tools are not listed, and the above tools can guarantee the basic maintenance and testing, etc. The product shall be installed by the professional installation personnel according to the instructions. Note: Correct installation is required to ensure safe operation. The requirements for the heat pump include: 1.

  • Page 41: Installation Details

    maintenance and repair. 13. Equipped with qualified power supply matching with the equipment to be installed. The power supply should be dedicated, with sufficient capacity and reliable grounding. 14. The foundation or foundation of the installation site shall be solid, with sufficient bearing capacity, and the hollow structure or buried drainage ditch shall be adopted.
  • Page 42 9. The acceptable operating voltage range shall be within ± 10% of the rated voltage. 10. To ensure safety, the heat pump unit must be grounded. 5.4.1 General requirements Read the operating instructions before installation, use, and maintenance. The heat pump must be installed by a professional in accordance with the local electrical wiring specifications and this specification.
  • Page 43 The heat pump shall be checked for trace of damage and for good appearance. 5.4.3 Safety principles for heat pump installation The installation site shall be well ventilated (open doors and windows). The use of R290 refrigerant is prohibited in areas where fire sources exist. When installing the heat pump, anti-static measures should be taken, such as wearing cotton clothes / anti-static clothes, wearing cotton gloves, wearing wireless electrostatic bracelet, etc.

  • Page 44: Drainage And Condensation

    The connection and extension are strictly prohibited. 5.5 Drainage and Condensation Condensation will occur from the evaporator when the unit is running and drain at a steady rate, depending upon ambient air temp. and humidity. The more humid the ambient conditions, the more condensation will occur.
  • Page 45 stops. 9. In order to reduce the back pressure, the pipes should be installed horizontally. 10. Minimize the elbows (90 degrees connections). If a higher flow rate is required, install a bypass valve. 11. An exhaust valve must be installed at the highest point of the circulating water system, and also at locally elevated areas.
  • Page 46 5.6.5 Water pressure debugging 1.Before the experiment, the pipeline should be fixed, the joints should be exposed, and water distribution equipment should not be connected; 2. The pressure gauge is installed at the lowest point of the test pipe section, with a pressure accuracy of 0.01Mpa;...

  • Page 47: Electrical Connection

    6.Electrical connection 6.1 Notes for electrical wiring Ensure that all the high voltage circuits are disconnected before you start installing the heat pump. Contact with these circuits may cause death or serious injury to the user, installer or other person, or property damage.
  • Page 48 6.2.2 Single-phase power supply wiring Please use a 3-core power cable of appropriate length according to local safety regulations and connect to the terminal block of the unit; Single phase power input 6.2.3 Three-phase power supply wiring Use 5-core power cables of appropriate length according to local safety regulations and connect them to the junction box of the unit.
  • Page 49 6.2.4 Wiring of the water tank heater Use 2-core power cables (1.0mm² 2) according to local safety regulations. The electric heating line of the water tank is 220V signal line, and the electric heating power exceeds 1 KW. External using appropriate relay or contactor connections.
  • Page 50 3. When in hot water mode, defrost mode, antifreeze mode, the three-way valve is turned on. Other modes, the three way valve is off. Remark: The three way valve is optional and requires customers to purchase additionally. 6.2.7 Smart Grid wiring Connect the SG and the EVU terminals The system monitors the power situation through the smart module, receives different SG and EVU signals, and determines whether the system is using photovoltaic power or mains power to operate the heat pump.
  • Page 51 Operation State Increased Operation Free Electricity Status(PV) Normal Operation Low Power Consumption Status Decreased Operation Peak Power Consumption Status (1)When SG signal is on, and EVU signal is on, when the hot water mode is set to be valid, heat pump will operate hot water mode priority and the hot water mode setting temperature will be change to 70℃.
  • Page 52 6.2.9 Multiple heat pump units online Unit SW1-2 SW1-3 SW1-4 When conducting a cascade connection, set the dialing number for each mode on the main control board to control up to 8 units. The detailed dialing codes are listed below: 6.2.10 Online wiring of multiple heat pumps Up to 8 sets are online, and the slave address is as shown in the figure: 0=off;...
  • Page 54 Circuit Board Connect Procedure...
  • Page 55 Water route connection steps: as shown in below Installation Remarks: The "Heat pump" runs only hot water, does not participate in cascading, and is controlled by a wire controller; The remaining 1-8 units are cascaded, and any one is selected as the host unit. The host is equipped with a wired controller to control 8 units and can only operate the heating mode.
  • Page 56 6.2.11 Water tank sensor wiring The heat pump is standard with a water tank sensor(T2) from factory, the length is about 10m, users can directly install the sensor probe to the corresponding position in the hot water tank. 6.2.12 Temperature Sensor Position The heat pump is designed with 8 temperature sensors at the factory, that are used to detecting the temperature and translate the temperature signal to electricity signal to the mainboard.

  • Page 57: Wiring Diagram

    6.3 Wiring diagram PW030/040-DKZLRS-E/S 8.3kw-11.4kw 230V...
  • Page 58 Single phase system (PW050-DKZLRS-E/S)
  • Page 59 Single phase system (PW055/060-DKZLRS-E/S)
  • Page 60 Single phase system (PW070-DKZLRS-E/S)
  • Page 61 Three phase system (PW040/050/060-DKZLRS-E)
  • Page 62 Three Phase System (PW055-DKZLRS-E)
  • Page 63 Three Phase System (PW070-DKZLRS-E)

  • Page 64: Commissioning

    7.Commissioning 7.1 Precautions 1. Trial operation can only be conducted after electrical safety inspection. 2. Do not block the inlet and outlet of the air, as this may cause the unit performance degradation or start the protection procedure that will make the machine unable to operate. 3.

  • Page 65: General Maintenance

    8.General Maintenance The R290 DC inverter air source heat pump unit is a highly automated device. Regular and effective maintenance on the unit will greatly improve the operation reliability and service life of the unit. During the maintenance process, pay more attention to the following important tips: 1.

  • Page 66: Daily Inspection Of Heat Pump

    1. The unit shall be equipped with a specialized power supply. The voltage range shall be within ± 10%. The switch shall be an automatic air switch. The set current shall be 1.5 times of the operating current and equipped with no phase protection device. No knife switch is used in the unit.

  • Page 67: Maintenance Of Main Electrical Components

    B.When installing pipelines, it is recommended to reserve a three-way valve interface to prevent cleaning solution from entering the water tank, and seal one interface with a screw plug in case of connection during cleaning. C.Do not use corrosive cleaning solution for heat exchangers or water tanks. D.The air side heat exchanger should be cleaned regularly (3-6 months) to maintain good heat exchange efficiency.

  • Page 68: Maintenance Of Anti-Freeze

    direction is correct, and whether it is blocked or idling. 8.5 Maintenance of anti-freeze 1. Keep powered on Please do not turn off the power when the heat pump is temporarily out of use or when it is not in use, as the unit is equipped with anti freeze protection function. Only when the unit is running normally or the circulation pump is running normally, can the unit ensure that water does not freeze in cold weather.

  • Page 69: Refrigerant Charging

    precipitation, or corrosion. 5. Please regular inspect the pipeline antifreeze status, and it is recommended to replace the antifreeze every 2-3 years. 8.6 Refrigerant Charging Refrigerant plays an important role in the cooling or heating process, and the lack of refrigerant directly affects the effect of cooling or heating.

  • Page 70: Inspection And Maintenance On The Heat Pump

    drain the refrigerant in the system and vacuum it, next it is necessary to refer to the refrigerant charging amount on the nameplate. 8.7 Inspection and Maintenance on the Heat Pump Dangerous: requires professional operation 8.7.1 Maintenance of the wired controller Disconnect the power supply, remove the top cover of the unit, and remove the electrical box cover.
  • Page 71 Remove the top cover Remove the front panel Remove the electrical box cover Remove the water pump’s nut, Pull off the signal cable from and then remove the water pump the PCB 8.7.3 Replace the Fan Motor (1) Disconnect the power supply and remove the screws on the front grill. (2) Release the nut of the fan blade with a wrench, and then remove the fan blade.

  • Page 72: Precautions For Heat Pump Operation In Summer

    8.8 Precautions for heat pump operation in summer During the operation of the heat pump in summer, to ensure efficient and stable operation of the equipment and extend its service life, please pay attention to the following matters: 8.8.1 Outdoor unit ventilation 1.Make sure there are no obstacles around the outdoor unit to maintain good air circulation.
  • Page 73 increase, which may easily cause the compressor to fail with an overcurrent alarm of Er20. 8.8.5 System pressure and refrigerant management 1.System pressure monitoring: Regularly monitor the high and low pressures of the system to ensure that the pressures are operating within the normal range. 2.Refrigerant inspection: Ensure that the refrigerant is sufficient and leak-free, and check and refill the refrigerant regularly.

  • Page 74: Heat Pump Operation

    9.Heat pump operation 9.1 Controller panel 9.2 Display icon lists: meaning Heating mode Hot water mode Cooling mode Heating and Hot water Mode (Hot water function as priority) Cooling and Hot water Mode (Hot water function as priority) Smart mode Powerful mode Silent mode Vacation mode...

  • Page 75: Definition Of Buttons

    Water tank heater working Electric heating working Defrosting Antifreezing 9.3 Definition of Buttons: Button Description Function On/off turn on or turn off the heat pump. Mode switch the operating mode of the heat pump. Timer set timer switch and working weekdays. query running parameters, check and set system parameters, Setting error code records, Wifi connection, etc.

  • Page 76: Wire Controller Operation

    User Check and set the user parameters of the heat pump parameters Factory Check and set the factory parameters(Do not advise to parameters amend the factory parameters. Check the inlet water and outlet water operation curves and Run the curve operation power curves.

  • Page 77: Wire Controller Operation

    9.5 Wire controller operation 9.5.1 START/STOP THE HEAT PUMP In the main interface, press the "ON/OFF" button for 1 second, and the "Startup Confirmation" window will pop up. Confirm startup, then the mode symbol is displayed in the startup status, but not in the shutdown status.
  • Page 78 9.5.3 RUNNING MODE SETTING/OPERATING MODE SELECTION In the main interface, press the "MODE" button for 1 second to enter the Mode Selection interface (Including operating mode, frequency mode and holiday mode selection), Choose the operating mode and frequency mode according to actual needs. (1) Operating Mode description: Offer 5 modes for option: Heating, Cooling, DHW, Heating+DHW, Cooling+DHW.

  • Page 79: Timer Settings

    9.5.5 Timer settings (1) In the main interface, press the "Timer" button to enter the timer setting interface. (2) In the week column, the user can choose which day to perform the timer. When the weekday button ("Mon." to "Sun.") turns white, the timer will be executed on the selected day(s). When the weekday button turns gray, the timer will not be executed.
  • Page 80 9.5.6 Query of operation parameters In the main interface, press the "SETTING" setting button to enter the settings interface. Then press "Unit Status" button to enter the unit list interface, click the corresponding unit to query its running parameters. The status table is as follows: Remark: When a specific unit is connected to Cascade, the corresponding circle will turn green.
  • Page 81 Interfaces of Status Parameters:...
  • Page 82 21 EVU powered signal...
  • Page 83 ◎ List of operation parameters code description remarks: Water inlet tempertaure -30~99℃ Water outlet temperature -30~99℃ Ambient temperature -30~99℃ Exhaust gas temperature 0~125℃ Return gas temperature -30~99℃ Evaporator coil temperature -30~99℃ Inlet temperature of economizer -30~99℃ Outlet temperature of economizer -30~99℃...
  • Page 84 Actual rotation speed of DC water pump 9.5.7 Check the energy consumption curve In the main interface, press the "SETTING" button to enter the Settings interface. Then click "Run the curve" to enter the energy consumption curve interface, click "<" and ">" icons at the bottom of the interface to switch "temperature curve", "operating power curve", "COP(EER) curve", "heating capacity", "daily power consumption curve", "monthly power consumption curve", "annual power consumption curve".
  • Page 86 9.5.8 Query and setting of user parameters In the main interface, press the "SETTINGS" button to enter the setting interface, and then press the "User Parameters" to enter the parameter query and setting. The following list shows the code, definitions, ranges, and defaults.
  • Page 88 ◎ List of the user parameters Definition Settable Range Default Code Temp difference of return water and 2℃~18℃ 2℃ cooling target temp Temp difference of return water and hot 2℃~18℃ 5℃ water target temp Hot water setting temp. 28℃~70℃ 50℃ Cooling setting temp.
  • Page 89 coil temp. difference 1 Defrosting environment and evaporator 0℃~15℃ 5℃ coil temp. difference 2 Ambient temp. for defrosting 0℃~20℃ 17℃ 0~30 days High temperature disinfection cycle Disinfection function is days not executed when set to High temperature disinfection start time 0~23:00 High temperature...
  • Page 90 2 Heating+Cooling 3 Heating+DHW 4 Heating+Cooling+DHW 0 Intermittent Circulation pump status after reaching 1 All time target temp. 2 Stop at constant Temp. Circulation pump on-off cycle after 15（OFF15min 1~120min reaching set temp. ON3min） 0 No Start DC circulation pump mode 1 Auto 2 Manual DC circulation pump adjustment cycle...

  • Page 91: High-Temperature Disinfection Function (Only On Hot Water Mode)

    9.6 High-temperature disinfection function (Only on hot water mode) When selecting the hot water function, the high-temperature disinfection mode description is as follows: (1) The high-temperature disinfection mode cycle is once for every 7 days (User parameter-P17); (2) When entering the high temperature anti-corrosion, the water tank electric heater will be forced to open.

  • Page 92: Auxiliary Electric Heater For Water Tank

    target temperature. (3) Calculation formula of the heating target temperature Pset (heating target temperature) (User parameterP24 (User parameterP23-Current ambient temperature) ◎ The different curves described above indicate the different values of user parameter-P24. (Actual value is 0.1 when user parameter P24=1) ◎...

  • Page 93: Auxiliary Electric Heater Is Used For Space Heating

    9.9 Auxiliary electric heater is used for space heating (1) Enable conditions 1) In the heating mode; 2) Ambient temperature<user parameter P26 (0℃) or ambient temperature sensor failure 3)There is a heating demand there, and the inlet water temperature ≤ setting temperature of heating(user parameter P05) -temp difference (user parameter P01);...

  • Page 94: Users' Guide

    CAUTION — Keep all objects clear above the heat pump. Blocking air flow could damage the unit and may void the warranty. 9.11 Users’ Guide 9.11.1 Rights and Responsibility (1) To ensure you have the service in guarantee period, only the professional server and technology staff can install and repair the unit.

  • Page 95: Fault List And Trouble Shooting

    10.Fault list and trouble shooting 10.1 Controller fault code (1) If the heat pump fails, the main interface will display the fault code and record them with details in the fault column in the setting interface. (2) The following common fault codes will be appeared on the controller if happened Fault code Definition of a fault or a protection Er 03...
  • Page 96 Er 21 Ambient temperature sensor fault Er 23 Protection for too low outlet water temperature Er 26 Radiator temperature fault Er 27 Water outlet temperature sensor fault Er 29 Return gas temperature sensor fault Er 32 Protection for too high outlet water temperature Er 33 Evaporator coil temperature is too high Er 34...

  • Page 97: Owner Inspection

    alternate code alternate code The compressor output Compressor wiring line break or Check the compressor input phase is missing poor contact circuit DC bus with low Input voltage is too low or the PFC Check the input voltage and voltage module failure, replace the module DC bus with high...

  • Page 98: Trouble Shooting

    5. Keep the unit grounding well all the time. 6. Maintain the external filter regularly to ensure the cleanliness of the water to avoiding damage the internal components of the unit. 7. Check the wiring of the power supply and electrical components regularly to ensure their normal operation.
  • Page 99 10.3.1 Troubleshooting of fault codes Fault name description Solution advice code The RST sequence of 380V heat pump power incoming line is wrong, and the three RST Wrong phase The 380V heat pump power incoming line wires are switched to the correct wiring Er 01 protection RST sequence fault...
  • Page 100 2. Check the actual water inlet and outlet temperature 1. Poor contact or damage of the 1. Check and replace the communication communication cables cable Er 09 Communication fault 2. The motherboard and control panel are 2. Replace the motherboard and the control damaged panel Communication fault...
  • Page 101 overheating fault board or the main PCB board the compressor is normal 2. Poor ventilation of the radiator. 2. Check whether the fan rotates slowly, and check whether there is any foreign matter on the radiator or whether the air outlet is blocked Outlet water The sensor plug contact or fall off, the sensor...
  • Page 102 is too low and usually happened with a low pressure fault or only with a low pressure fault together The operating pressure is above the set point Pressure protection and usually happened with a high pressure Er 70 Solution as Er05 is too high fault or only with a high pressure fault together...
  • Page 103 10.3.2 Diagram of board for maintenance and trouble-shooting...
  • Page 104 Item no. Descriptions Item no. Descriptions Fan 1# ㉒ Water tank electrical heater outlet connection Fan 2# ㉓ This output connection is reserved Low pressure sensor ㉔ This output connection is reserved Variation frequency signal wire ㉕ This output connection is reserved for Water pump Power detection board RS485 ㉖...
  • Page 105 10.3.2.1 Photo diagram for wire connections for 220V single-phase units Item no. Descriptions Item no. Descriptions Power cable live line L Linkage switch connection Power cable zero line N Common connection Earth line SG signal connection L line connection for Signal ground wire connection Water tank electrical heater L line connection for pipe line...
  • Page 106 10.3.2.2 Photo diagram for wire connections for 380V 3-phase units Item no. Descriptions Item no. Descriptions Three phase power cable live wire Neutral wire Three phase power cable live wire Linkage switch Three phase power cable live wire Common wire Three phase power cable neutral wire SG signal connection Grounded wire...
  • Page 107 10.3.3. Troubleshooting and Maintenance of Common Fault Codes Note: When testing the resistance values of all temperature sensors, please refer to Appendix D- Temperature Sensor Resistance. Maintenance method: RST three fire lines arbitrarily exchange two (after the Er 01 exchange, re-power, adjust to Wrong phase the wrong phase fault protection...
  • Page 108 Maintenance: Water pipe 1. Check whether the water pipe valve is fully open or not, ensure smooth water flow. 2. Check whether the temperature difference between the inlet and outlet water is within the range of 4~7 degrees Celsius or not. If the temperature difference between the inlet and outlet water is too large, it indicates that the water flow...
  • Page 109 Electronic control: First Steps: 1. Check whether the high pressure switch is damaged or the sensor wire is broken or not. Make sure the wiring terminals are connected correctly (Red IN2) 2. Check whether the position of the inlet temperature probe is High-pressureswitc correct or falls off (the h failure...
  • Page 110 Systems: Second Steps: After turning off the heat pump for 10 minutes, check whether the refrigerant pressure gauge parameters of the unit are normal, and connect to the low-pressure inspection port with pressure gauge to measure whether refrigerant in the system is normal or not (operated by professionals).
  • Page 111 The Third Steps: While the unit is running, check whether the fan is operating normally or not, or check the fan speed parameter through High-pressure switch failure controller. If the fan speed parameter is 0, check whether the fan terminal wiring is secure or not after power off.
  • Page 112 Water Connection: The Fourth Steps: 1. After opening heating mode for 5 minutes, check whether temperature difference between the inlet and outlet water is between 4 and 7 degrees Celsius. If the temperature difference too large, maybe the water is not smooth or the water flow is too small.
  • Page 113 Electronic control First Steps: 1. Check whether pressure switch is damaged or the sensor wire is broken or not. Make sure the wiring terminals are connected correctly (Red IN2). System The Second Steps: After turning off the heat pump for 10 minutes, check whether the refrigerant pressure...
  • Page 114 1. Check the connection of the communication line between the wire controller and the main circuit board. communication line damaged, the terminal falls off or the connection is bad, please replace the communication line and check again; C o m m u n i c a t i o n f a i l u r e 2.
  • Page 115 1. After turning off the machine for 10 minutes, check whether the refrigerant pressure gauge parameters of the unit are normal, and use the pressure gauge to measure whether the system refrigerant is normal.(If the refrigerant is below the normal value and the refrigerant is leaked, please check whether there are leakage points in each pipeline.
  • Page 117 Inlet water 1. Check if the probe wiring is temperature damaged; sensor fault 2. Check the connection between the temperature sensor and the main board; 3. Check the resistance value of the temperature sensor (5 KΩ). If the resistance value is too low or too high, it indicates that the sensor has a problem and needs to be replaced.
  • Page 118 1.Check if the probe wiring is damaged; 2. Check the connection between the temperature sensor and the motherboard Outer coil temperature 3. Check the resistance value of the sensor fault temperature sensor (5 KΩ). If the resistance value is too low or too high, it indicates that the sensor has a problem and needs to be replaced.
  • Page 119 1 Check if the probe wiring is damaged; 2. Check the connection between the temperature sensor and the motherboard 3. Check the resistance value of the temperature sensor (50 KΩ). If the resistance value is too low or too high, it indicates that the sensor has a problem and needs to be replaced.
  • Page 120 Er20 1. Check whether the i n v e r t e r m o d u l e is overheated Abnormal protection of the inverter 2. Check whether the i n v e r t e r module m o d u l e is over-current 3.
  • Page 121 1. Check if the probe wiring is damaged; 2. Check the connection between the temperature sensor and the motherboard Er21 Environmental temperature 3. Check the resistance value of the sensor failure temperature sensor (5 KΩ). If the resistance value is too low or too high, it indicates that the sensor has a problem and needs to be replaced.
  • Page 122 Er23 1.The outlet water temperature exceeds the system's protection Cooling Mode ： threshold, low water flow rate, low outlet water water pump anomaly. Check if the temperature water valve or water pump is protection (refer open. Er27 2. The water pipeline has air or treatment) blockage, emptying and cleaning the blockage...
  • Page 123 1. Check if the probe wiring is damaged 2. Check the connection between the temperature sensor and the motherboard Er29 Return gas 3. Check the resistance value of the temperature temperature sensor (5 KΩ). If the sensing failure resistance value is too low or too high, it indicates that the sensor has a problem and needs to be replaced.
  • Page 124 1. The outlet water temperature exceeds the system's protection threshold, low water flow rate, water pump anomaly. Check if the Er32 water valve or water pump is open. Heating Mode: Outlet water temperature too 2. The water pipeline has air or high protection blockage, emptying and cleaning the (Refer to the Er27...
  • Page 125 E r 3 5 1. Make sure the power supply Over-current voltage within normal protection of operating voltage range of the compressor machine; 1. Check whether the compressor works normally, check compressor current value from the controller display screen, and measure the current of the power line with a clamp multimeter;...
  • Page 126 1. Check if there is any damage to the sensor and its wire 2. Check the connection between E r 4 2 the temperature sensor and the main board Inner coil 3. Check the resistance value of the temperature failure temperature sensor (5 KΩ).
  • Page 127 10.3.4 Er20 inverter module fault code, detailed solutions are listed as below Code Meaning Possible Reasons Detecting Procedures Solutions 1. Make sure that the 1. Check whether the machine is machine is not stuck 1. External overload or stuck, for example, if the 2.
  • Page 128 low when the remaining 3. Check if the DC bus low voltage mechanical failure electricity supports the is caused by remaining electriciy of 3. Ensure that the electricity chips of the capacitor to the capacitor or not in capacitor is completely work 4.
  • Page 129 1. Power supply voltage is too high. When the power supply voltage exceeds the 1. Check whether the power supply 1. Ensure that the power rated voltage of the voltage is normal supply voltage is normal converter, the output DC bus 2.
  • Page 130 leading to abnormal current transformer detection 1.AC over-current, the load suddenly goes too large, and the frequency cannot drop in time 2. The compressor is 1. Make sure that the load is 1. Test whether the load is changed over-power, and the load not too high suddenly AC input suddently...
  • Page 131 1. Ensure that current of the compressor wires is 1. Check whether the current of Compres 1. Current of compressors appropriate compressor wires is too large sor peak wires is too large 2. Update the program to 2. Check whether the main board current is 2.
  • Page 132 1. The liquid refrigerant enters into 1. Check if the expansion valve has failure The compressor the compressor operating noise is too 2. Internal parts of the compressor 2. Replace the compressor high are damaged 3. Check the power voltage 3.

  • Page 133: Wifi Connection And Operation

    11.WIFI connection and operation 11.1 Application download Please go to "Google Game Store" or "Apple App Store," search for "Smart Life" or "Tuya Smart," and download it. See below. 11.2 WIFI connection mode: Bluetooth mode step (1) By default, it can be connected by touching icons after 10 seconds of the first startup (10s is the delay of wifi into low power).
  • Page 134 step (1) Turn on Bluetooth function of the mobile phone (2) Turn on phone's WIFI connectivity function, and connect to WIFI hotspot. WIFI hotspots must be able to connect to Internet, as shown in below picture, Connect WIFI hotspots "123456789". step (1) Open "Smart Life"...
  • Page 135 step The WIFI network configuration of heat pump will be completed when the WIFI connection is done and system shows “add device” successfully. Click "Completed" to enter WIFI application interface.

  • Page 136: Software Function Operation

    11.3 Software function operation 11.3.1 The interface introduction (1) After the heat pump is successfully connected to WIFI, enter to interface of "my house heat pump" (the name of heat pmp can be modified). (2) Click "My Home Heat Pump" in the main interface of "All Devices" on "Smart Life" APP, enter the operation page of the "My Home Heat Pump"...
  • Page 137 11.3.2 Mode setting Click "working mode" on menu of main interface, choose the mode you want heat pump to work. 11.3.3 Water temperature setting In the Settings interface, click "Water Temperature Settings" to set the required temperature and return water temperature difference.
  • Page 138 11.3.4 User Settings In the setting interface, click "User Settings" to set the parameters. 11.3.5 Timer settings In the setting interface, click "timing" to enter the timer schedule setting, and click to add a timer.
  • Page 139 In the timer setting, slide up and down the hour / minute, set the timer time, set the repeat cycle and on / off, press the upper right corner to save, as shown in the below picture. hour minute Set the specific time Set up the power switch for the timer 11.3.6 Power consumption curve view...
  • Page 140 11.3.7 Equipment sharing (1) For the shared bound devices, the sharer shall operate in the following order. (2) After successful sharing, a list will be added and the shared people will be displayed. (3) To delete the shared person, long press the selected user, the delete interface will pop up, and click "Delete".

  • Page 142: Appendix

    Appendix A.User Parameters Explanation Factory Code Definition Adjustment range Explanation value Temp difference of return The difference between the set temperature water and cooling/heating 2℃~18℃ 2℃ of cooling/heating and the return water target temp temperature in heating/cooling mode. The difference between the set temperature Temp difference of return of hot water and the return water water and hot water target...
  • Page 143 mode It indicates that the interval between Defrosting period 20MIN~90MIN 45MIN defrosting cycles is 45 minutes It indicates that the evaporator coil temp Defrosting enter temperature -15℃~-1℃ -3℃ ＜-3℃ when the system enter defrost It indicates that the continuous defrosting Defrosting time 5MIN~20MIN 8MIN...
  • Page 144 65 ℃ represents the operating temperature of the heat pump. When the high-temperature disinfection function is activated, the heat pump Heat pump’s setting forcibly turns on the hot water mode, and temperature for high 40~65℃ 65℃ the target temperature of the water tank hot temperature disinfection water reaches a maximum of 70 ℃.
  • Page 145 When the compressor runs for 30 minutes and the water tank temp or the heating Start time for electric heating 0-60min 30min temp has not yet reached the set temp, the electric heating will be turned on 0 Celsius Celsius/Fahrenheit switch 1 Fahrenheit 1 Heating only 2 Heating+Cooling...
  • Page 146 Yes indicates access to SG function and Smart grid capabilities No、Yes activation No indicates no SG function The running time for activating the SG SG operating time 0-600 min 180min function is 180 minutes...

  • Page 147: B.commissioning Checklist

    B.Commissioning Checklist Installer name Install engineer/Telephone Name/Telep hone Install address Area Building insulation User’s basic information ㎡ User’s end Radiator□ Floor heating□ Fan coil□ Domestic hot water□ device Swimming pool heat pump□ Others□ Remarks: Actual Actual water input pressure voltage Heat pump Heat pump model/Input power pressure gauge...
  • Page 148 According to the installation diagram, check if the installed pipeline accessories are correct, conduct water pressure and leakage testing, empty the water pump, and empty the water tank; (Water pressure of tap water ≥ 0.2MPa); Water pump exhaust air: First, turn off the water pump, close the inlet and outlet valves, open the exhaust valve on the water pump circulation pipe, and patiently wait for a few minutes to completely discharge the air;...

  • Page 149: C.reference Parameters Of The Operation State For The Heat Pump

    User’s confirmation Date C.Reference parameters of the operation state for the heat pump Note: This parameter is only a theoretical value and is for reference only. Please note that there are differences among different units. In addition, in low-temperature heating mode, the parameters for different states such as frost formation, slight frost formation, and severe frost formation are also different.
  • Page 150 temperature 30~60 2~16 0~14 0.8~1.4 10~20℃ 35~65 2~16 0~14 0.9~1.6 40~70 2~16 0~14 1.0~1.7 45~75 3~17 1~15 1.1~1.8 50~80 3~17 1~15 1.3~2.0 55~85 4~18 2~16 1.5~2.2 60~90 4~18 2~16 1.6~2.3 65~95 4~18 2~16 1.7~2.4 Cooling Exhaust gas Return gas Outlet water Evaporator Coil temperature temperature...

  • Page 151: D.temperature Sensor Resistance With Different Ambient Temp

    D.Temperature sensor resistance with different ambient temp. 3.1 5K Sensor Resistance Temp(℃) Resistance(KΩ) Temp(℃) Resistance(KΩ) Temp(℃) Resistance(KΩ) 63.7306 7.7643 1.5636 60.3223 7.4506 1.5142 57.1180 7.1813 1.4856 54.1043 6.8658 1.4206 51.2686 6.5934 1.3763 48.5994 6.3333 1.3336 46.0860 6.0850 1.2923 43.7182 5.8479 1.2526 41.4868 5.6213...
  • Page 152 14.2293 2.4936 0.6320 13.6017 2.4097 0.6144 13.0057 2.3276 0.5973 12.4390 2.2491 0.5808 11.9011 2.1739 0.5647 11.3894 2.1016 0.5492 10.9028 2.0321 0.5342 10.4399 1.9656 0.5196 9.9995 1.9016 0.5088 9.5802 1.8399 0.4919 9.1810 1.7804 0.4786 8.8008 1.7232 0.4650 8.4395 1.6680 0.4533 8.0934 1.6140 3.2 50K Sensor Resistance Resistance...
  • Page 153 323.53 42.027 8.3723 2.2755 306.29 40.265 8.0903 2.2128 290.06 38.585 7.8193 2.1522 274.78 36.987 7.5586 2.0934 260.4 35.462 7.3077 2.0365 246.85 34.007 7.0667 1.9814 234.08 32.619 6.8345 1.928 222.02 31.297 6.6109 1.8764 210.69 30.034 6.396 1.8263 199.98 28.827 6.189 1.7778 189.86 27.677 5.9894...
  • Page 154 0.9649 0.3814 0.1743 0.942 0.3738 0.1713 0.9197 0.3664 0.1684 0.898 0.3591 0.1656 0.8769 0.352 0.1628 0.8564 0.3451 0.1601 0.8364 0.3383 0.1574 0.817 0.3317 0.1548 0.7982 0.3253 0.1522 0.7798 0.319 0.1497 0.762 0.3128 0.1472 0.7446 0.3068 0.1448 0.7277 0.3009 0.1425 0.7112 0.2952 0.1401 0.6952...

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