Cooper & Hunter CH-HP3.5SWNK Owner's Manual
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Cooper & Hunter CH-HP3.5SWNK Owner's Manual

Air source heat pump water heater
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Air Source Heat Pump Water
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Owner's Manual
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CH-HP3.5SWNK

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Summary of Contents for Cooper & Hunter CH-HP3.5SWNK

  • Page 1 Air Source Heat Pump Water Heater Owner's Manual Models: CH-HP3.5SWNK...
  • Page 2 User Notice Thanks for purchasing the C&H air source heat pump water heater. In order to make the best use of this unit, prior to installation and operation, please read this manual carefully, pay attention to the operation and maintenance instructions provided in this manual, and keep it properly for future reference.

  • Page 3: Table Of Contents

    Contents 1 Precautions for Use ................1 2 Models and Technical Specifications ..........4 3 Working Principles and Advantages ..........7 3.1 Schematic Diagram of the Air Source Water Heater ............7 3.2 Brief Introduction to Principles ..................7 3.3 Advantages ........................8 4 Installation Precautions ..............
  • Page 4 14.1 Heating Capacity ....................... 32 14.2 Operating Performance ..................... 33 15 Notes on Winter Use ..............34 16 Servicing and Maintenance ............35 16.1 Water Replenishment for the Water Tank ..............35 16.2 Regular Cleaning for the Water Tank ................ 35 16.3 Mg-Stick Replacement ....................

  • Page 5: Precautions For Use

    Air Source Heat Pump Water Heater 1 Precautions for Use indicates the prohibited operations. indicates instructions that must be followed. indicates instructions to which special attentions must be paid. Before you use this product, please read the following instructions carefully: Caution ...
  • Page 6 Air Source Heat Pump Water Heater  The unit must be securely  Do not put any foreign  Do not repair the unit by grounded! The grounding wire matter into the unit. Otherwise, yourself. must be connected to a the unit may be damaged or dedicated apparatus of the cause hazards.
  • Page 7 Air Source Heat Pump Water Heater  Open the safety check valve  It is normal that the safety  The pressure relief handle on a regular (about one check valve drips. opening of the safety check month) basis to check whether valve must be connected to it is blocked.

  • Page 8: Models And Technical Specifications

    Wired controller Water tank Figure 2-1 Appearance of the main parts This installation guide provides guidance on installation of the following model. Table 2-1 Mapping between the main unit and the water tank Outdoor unit model Water tank model WT200SW1.5ENK CH-HP3.5SWNK...
  • Page 9 During the installation, please comply with the model mapping in the preceding table. Otherwise, a fault may occur because the main unit mismatches the exchanger capacity of the water tank. Table 2-2 Unit Model and Specification CH-HP3.5SWNK Model 3500(1800～4000) Rated Heating Capacity 850(360～1333)
  • Page 10 Air Source Heat Pump Water Heater ③ (***) Value obtained as per EN 12102-2008. ④ Under Rapid function, electric heater helps to heating water. Please always see the nameplate for the exact data as this table is subject to change. Table 2-3 Water Tank Model and Specification WT200SW1.5ENK Model...

  • Page 11: Working Principles And Advantages

    Air Source Heat Pump Water Heater 3 Working Principles and Advantages 3.1 Schematic Diagram of the Air Source Water Heater Figure 3-1 Schematic diagram of the air source water heater 3.2 Brief Introduction to Principles The air source water heater unit is designed based on the heat pump principles. It consumes a part of electric energy as a supplement, and by using the thermodynamic cycle, absorbs heat from the low-grade energy (air source) environment, and transfers the heat to a condenser through a compressor, and...

  • Page 12: Advantages

    Air Source Heat Pump Water Heater 3.3 Advantages  Efficient and Energy-Saving The outdoor unit of this product adopts an electronic expansion valve for adaptive control. It automatically adjusts its opening size based on the unit operating conditions, and uses the heat in the air to heat up domestic water, so that the unit always runs at optimal performance as well as ensuring reliability.
  • Page 13 Air Source Heat Pump Water Heater The unit provides a proper water temperature range from 35° C to 55° C. It provides functions such as timer switch, "Rapid" and "i-know".  Intelligent Defrosting The unit provides the antifreeze and automatic defrosting functions, which effectively solve the problems such as heat exchanger freezing, frosting, and sewage caused by defrosting.

  • Page 14: Installation Precautions

    Air Source Heat Pump Water Heater 4 Installation Precautions 4.1 Importance Notes The air source water heater must be installed by professional personnel by abiding by the national wiring code and following the instructions in this guide. For installation or migration of the air source water heater, please contact your local service centers authorized by C&H.

  • Page 15: Main Unit Installation

    Air Source Heat Pump Water Heater 5 Main Unit Installation 5.1 Location for Installing the Main Unit The main unit must be installed at a location where: The noise and air flow generated by the air outlet do not affect neighbors, animals, and plants.
  • Page 16 Figure 5-3, and ensure reliable and tight fitting. Then, connect the drainage pipe to the drainage mouth, and guide the drainage pipe to a proper place for drain. Unit：mm Model CH-HP3.5SWNK Figure 5-1 Dimension diagram of the main unit structure Distance from obstructions Air inlet side ≥...

  • Page 17: Installation Of The Water Tank

    Air Source Heat Pump Water Heater 6 Installation of the Water Tank The water tank can be installed outdoors with the main unit, for example, installed in the balcony, roof, or ground. It can also be installed inside the room. Try to install it in an environment where the temperature is higher than 0°...

  • Page 18: Pipeline Connection

    Air Source Heat Pump Water Heater 7 Pipeline Connection 7.1 Refrigerant Pipe Connection If the water tank and the main unit need to be connected by punching through a wall, a hole of Φ 55 mm must be drilled in the wall and the hole should be inclined toward the exterior wall, as shown in Figure 7-1.

  • Page 19: Exhaust Methods

    Air Source Heat Pump Water Heater Caution: Perform pipe layout and bending carefully. Do not damage connecting pipes. Do not screw up the nut too tight to damage to the nut, its corners, or the bell mouth, or too loose to cause leakage. Table 7-1 shows the tightening torque.
  • Page 20 Air Source Heat Pump Water Heater Figure 7-3 Opening the fluid valve and air valve Figure 7-4 Vacuum pump connection diagram (2) Vacuum pump: 1) Connect the filling hose to the fluoride injection mouth of the air valve. Ensure that the valve cores of the air valve and fluid valve are tightly closed.

  • Page 21: Water Pipe Connection

    Air Source Heat Pump Water Heater again. 5) Remove the filling pose from the air valve. 6) Fully open valve cores of the gas valve and fluid valve. 7) Tighten the valve caps of the air valve and fluid valve, and the fluoride injection mouth nut.
  • Page 22 Air Source Heat Pump Water Heater prevent it from loosening. The guide pipe must be installed at the non-frost environment and connected to the floor drain adown and must not be folded to prevent blocking. If the safety check valve is damaged, you should maintain or replace the same type or the same parameter.
  • Page 23 Air Source Heat Pump Water Heater take thermal insulation measures, and do not directly use metal pipes. To ensure safety and reliability, use dedicated accessories (PPR pipe joints, safety check valves, and filters) delivered with the unit, and do not use accessories from third-party vendors or replace any parts by the user.

  • Page 24: Installation Diagram Of The Unit

    Air Source Heat Pump Water Heater 8 Installation Diagram of the Unit Figure 8-1 Installation diagram of the unit Table 8-1 Dimensions and specifications Name Interfacing Pipe Screw Thread Hot water outlet of the water tank G1/2 Cold water inlet of the water tank G1/2 Caution ①...

  • Page 25: Wiring

    Air Source Heat Pump Water Heater 9 Wiring 9.1 Wire Layout This air source water heater is class Ⅰ appliance. Ensure that wire layout is performed by professional personnel according to national wiring rules. Ensure that a switch for all-pole disconnection is available for the fixed lines and is directly connected to wiring terminals of the power supply.

  • Page 26: Wire Connections

    (1) Unscrew the screw on the connection box cover on the right side panel of the main unit to open the connection box cover. Figure 9-1 shows the external wiring. Figure 9-1 External wiring for CH-HP3.5SWNK mapping WT200SW1.5ENK ①. Power cord 3×1.5mm (H07RN-F) ②.
  • Page 27 Air Source Heat Pump Water Heater temperature sensor. Put the temperature sensor inside the connection box. The line of the temperature sensor must be clamped tightly. Check whether the temperature sensor is securely fastened. (5) Use wire clips to clamp the strong wires, and install the connection box to the original place.

  • Page 28: Wired Controller Installation

    Air Source Heat Pump Water Heater 10 Wired Controller Installation 10.1 Requirements for Wired Controller Installation Locations (1) Do not install the wired controller in a wet place or a place exposed to direct sunlight. (2) Do not install the unit or wired controller of the air source water heater in a place susceptible to electromagnetic interference.
  • Page 29 Air Source Heat Pump Water Heater Figure 10-2 Installation Diagram of Wired Controller Figure 10-1 is the installation diagram of wired controller. Cut off power supply of heavy-current wire embedded in mounting hole in the wall before installation. The installation method is as below: Pry the removal port with straight screwdriver to separate the front panel and soleplate of wired controller;...

  • Page 30: Rainproof Box Installation

    Air Source Heat Pump Water Heater distance between them should be greater than 20 cm. Otherwise, the unit may not be able to communicate properly. ② If the unit is installed in a place susceptible to electromagnetic interference, the communications line of the wired controller and the line of the temperature sensor must be used.
  • Page 31 Air Source Heat Pump Water Heater Name Name Rubber cushion(rainproof Panel of wired controller box) Screw Rainproof box Bottom plate of wired Installation box inside the wall controller Figure 10-3 Rainproof Box Accessories of Wired Controller Figure 10-4 Disassembly Diagram of Rainproof Box of Wired Controller...

  • Page 32: Commissioning

    Air Source Heat Pump Water Heater 11 Commissioning After the main unit, water tank, wired controller, waterway system, fluorine circulation system, and electrical wiring are installed, check the unit based on the following checklist. Table 11-1 Checklist for the installation Possible Symptoms Caused by Check Item Improper Installation...
  • Page 33 Air Source Heat Pump Water Heater Is the temperature sensor securely Performance of the water tank is connected? affected. The water temperature displayed in Is the temperature sensor inserted to the the wired controller is different from the bottom of the water tank? actual temperature.

  • Page 34: Methods For Replenishing Or Discharging Refrigerants

    Air Source Heat Pump Water Heater 12 Methods for Replenishing or Discharging Refrigerants 12.1 Refrigerant Replenishment Refrigerants can be replenished for the source water heater only in specific mode. First, connect the hose in the middle of the pressure gauge to the refrigerant bottle, and connect (but do not tighten) one end of the blue hose of the low pressure gauge to the fluoride injection mouth of the air valve on the unit.

  • Page 35: Method For Refrigerant Reclamation

    Air Source Heat Pump Water Heater Figure 12-1 Refrigerant replenishment diagram Figure 12-2 Refrigerant discharging diagram 13 Method for Refrigerant Reclamation Refrigerants can be reclaimed for the source water heater only in specific mode. In normal hot water mode, press and hold MODE+ for 5 seconds to enter the query status.

  • Page 36: Performance Of The Unit

    Air Source Heat Pump Water Heater damage to the unit. If refrigerant reclamation is required, please contact the professional personnel to perform refrigerant reclamation. 14 Performance of the Unit 14.1 Heating Capacity During heating, the unit will absorb the heat from outdoor air constantly and then release the heat to water for heating the water inside the water tank.

  • Page 37: Operating Performance

    Air Source Heat Pump Water Heater Figure 14-2 Correction diagram of COP 14.2 Operating Performance (1) Defrosting ① If frosting appears during water heating, the unit automatically enables the defrosting function to improve the heating effect. ② When defrosting runs, the unit stops running the fan; ③...

  • Page 38: Notes On Winter Use

    Air Source Heat Pump Water Heater the power is restored, the wired controller sends power-on/power-off signals to the water heater according to the status memorized before the power is cut off. This ensures that the unit can run according to the original status after the power is restored.

  • Page 39: Servicing And Maintenance

    Air Source Heat Pump Water Heater 16 Servicing and Maintenance 16.1 Water Replenishment for the Water Tank （1）Water replenishment procedure 1) Cut off the power supply of the unit, and open the cut-off valve of the hot water outlet pipe and the valve at the location for water use. 2) Open the cut-off valve of the tap water inlet pipe.

  • Page 40: Mg-Stick Replacement

    Air Source Heat Pump Water Heater （7）After the water tank is cleaned, switch on the power supply. Note: Under normal conditions, the water tank can be cleaned once a year. If the water quality is poor, you need to shorten cleaning frequency. 16.3 Mg-Stick Replacement To improve durability of the water tank, a Mg-Stick is installed inside the water tank.

  • Page 41: Safety Check Valve Maintenance

    Air Source Heat Pump Water Heater 16.4 Safety Check Valve Maintenance In the heating process, when the inner container of water tank is in overpressure, a small amount of water may be discharged through the safety check valve, which is a normal phenomenon.

  • Page 42: Precautions For Safety Use

    Air Source Heat Pump Water Heater Precautions for Safety Use For comfort usage, it's suggested to use shower head with flow rate of 6 ~ 7L / min. User should have regular check and maintenance for heat pump water heater, if there is abnormal condition, please immediately contact C&H after-sales service for help so as to guarantee normal, safe and...

  • Page 43: Troubleshooting

    Air Source Heat Pump Water Heater 18 Troubleshooting Warning Do not personally repair the air source water heater. Non-professional maintenance may cause electric shock hazards or a fire. If maintenance is required, please contact C&H authorized service center to dispatch professional personnel. Before contact C&H authorized service center, check the following items, which may save your time and expenses.
  • Page 44 Air Source Heat Pump Water Heater check valve, which is a normal Safety valve phenomenon. However, if a large amount of water is discharged through the safety check valve or even pipe vibration occurs and abnormal noise is caused, contact C&H authorized maintenance centers.
  • Page 45 Air Source Heat Pump Water Heater Table 18-3 Please contact the C&H appointed service center in case of any of following conditions. Malfunction phenomenon Malfunction analysis The unit hasn’t been deciphered. The water heater can’t turn on and Please change to use the wired the wired controller displays EC controller with password input function to decipher the unit.
  • Page 46 Air Source Heat Pump Water Heater The water heater stops operation and Phase-lacking protection of inverter the wired controller displays Ld compressor The water heater stops operation and Drive module reset of inverter the wired controller displays P0 compressor The water heater stops operation and Overcurrent protection of inverter the wired controller displays P5 compressor...
  • Page 47 Air Source Heat Pump Water Heater The water heater stops operation and Power protection of inverter fan the wired controller displays UP The water heater stops operation and Detection circuit malfunction of driven the wired controller displays AE current of inverter outdoor fan The water heater stops operation and Desynchronizing protection of inverter the wired controller displays AJ...

This manual is also suitable for:

Wt200sw1.5enk

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