Installation & Maintenance

1. Installation of the unit

1.1 Installation Guidelines

● Avoid installations in locations containing mineral oil.

● Avoid installation in locations where the air contains salt or other corrosive gases.

● Avoid installation in locations with serious power supply voltage fluctuation.

● Avoid installation in unstable places, such as a car or cabin.

● Avoid installation near flammable items.

● Avoid installation in locations with strong electromagnetic forces.

● Avoid installation in locations withharsh environmental conditions.

 

1.2 Installation check

● Check the model, number, name etc, to avoid incorrect installation.

● Make sure there is enough space for installation and maintenance.

●Install in a dry well-ventilated place and make sure there are no obstructions around the air inlet and outlet.

● Make sure thesupporting baseis strong enough and prepared to that shocks can be avoided.

● The power supply and diameter of the cables used must be in accordance with the electrical installation requirements.

● Electrical installation must comply with the relevant technical standards of electrical equipment, and electrical insulation work must be done.

●The unit must be put horizontally for at least eight hours before running.

 

1.3 Installation space

Please observe the space requirements indicated below for optimal operation and maintenance

There must be no obstructions or walls within 3 meters of the front of the product.
The back of the product must be at least 50 cm from the wall.
The sides of the product must be at least 80 cm from the wall.
The top of the product must be at least 30 cm from the wall.

 

2. Lifting

●Please use four or more soft lifting belts to move the sets(see Figure 6).

●Please use protective plates on the surface of the units when handling to avoid scratches and deformation.

●Double-check that the support base is strong enough before fixing the unit.

● The heat pump will produce condensation water:remember to providea drainage channel when making the installation base.

●Please install shock absorbers on the surface of the base.

 

3. Initial Operation and Setting

3.1 Attention

●Do adjustment after electrical safety inspection.

●After the power is switched on, start the test running of heat pump, to see if it can function well.

●Forced operation is forbidden, because it is very dangerous to work without protector.

3.2 Preparation Before Adjustment

●Check that the system is installed correctly.

●Pipes and cables are connected correctly.

●Check that accessories are installed.

●Make sure the drainage is working properly.

●Make sure the system piping and connections are properly insulated.

●Check that ground/earth connection had been made correctly.

●Check that supply voltage can meet the requirement of rated voltage.

●Check that air inlet and outlet are working correctly.

●Check that the electrical leakage protector works correctly.

3.3 Adjustment Process

●Check that switch of display controller works properly.

●Check that function keys on display controller work properly.

● Check that indicator lights work properly.

●Check that drainage works properly.

●Check that system works correctly after starting up.

●Check that water outlet temperature is acceptable.

●Check if there are vibrations or abnormal sounds when the system is functioning.

●Check if the wind, noise and condensate water produced by the system affect the surrounding environment.

●Check if there is any refrigerant leakage.

●If any fault occurs, please check the instructions first to analyze and remove the fault.

 

4. Operation and maintenance

4.1 The heat pump should be installed and operated by qualified professionals. To ensure the continued correct functioning of the system it is recommended that it should be checked and maintenance should be carried out at regular. During maintenance, please pay attention to the points below:

●Check that all parameters are normal during system operation.

●Check for loose electrical connections and fix if necessary.

●Check electrical components and replace if necessary.

●After prolonged use, there may be calcium or other mineral substancesdeposited on the surface of the heatexchanger copper coil. This could affect the performance of heat exchanger and lead to higher than normal electricalconsumption, increased discharge pressure and reduced suction pressure. Formic acid, citric acid, acetic acid or other organic acid can be used to clean the coil.

●Any dirt accumulated on the surface of the evaporator fins should be blown away using a 0.6Mpa air compressor, brushed by fine copper wire, or flushed with a high-pressurized water hose, usually one time per month. If there is too much dirt, we can use a paintbrush dipped in gasoline to clean the evaporator.

●After restarting the unit following a long period of inactivity, please do the following: examine and clean the equipment carefully, clean the water pipe system, check the water pumpand fasten all the wire connections.

●Always use original replacement parts.

 

4.2 Refrigerant

Check the refrigerant filling condition by reading the data of the liquid level from the display screen, and also by checking the air suction and exhaust pressure. If there is a leakage or any components of the refrigeration circulation system have been changed, it is necessary to check the air tightness before anything else.

4.3 Leak detection and air tightnesstesting

During leak detection and air tightness experiment, never allow oxygen, ethane or other harmful flammable gases to enter the system: only compressed air, fluoride or refrigerant can be used for such a test.

4.4 To remove the compressor, please do the following

●Turn off the power supply

●Remove the refrigerant from the low pressure end; make sure you reduce the exhaust speed, and avoid leakage of frozen oil.

●Remove the compressor air suction and exhaust pipe.

●Remove the compressor power cables.

●Remove the compressor fixing screws.

●Remove the compressor.

4.5 Conduct regular maintenance according to the user manual instruction, to make sure the unit running is in good condition.

●If there is a fire, disconnect the power immediately andput the fire out with fire extinguisher.

●The unit’s operating environment should be free of gasoline, ethyl alcohol and other flammable materials to avoid explosions or fire.

●Malfunction: if any malfunction occurs, find the reason, fix it and then reboot he unit. Never rebootthe unit forcibly if the cause of the malfunction has not been eliminated. If there is refrigerant leakage or frozen liquid leakage, switch the unit off. If it is not possible to turn the unit off from the controller then disconnect the main powersupply..

●Never short connect the wire for device protection otherwise, in case unit malfunction, the unit will not be protected normally and could be damaged.