Precautions For Installing Air-energy Heat Pump Water Heaters

Precautions for installing air-energy heat pumps

(I) Installation of the host

1. The installation requirements of the heat pump host are the same as those of the air conditioner outdoor unit. It can be installed on the exterior wall, roof, balcony, or ground. The air outlet should avoid the windward direction.

2. The distance between the host and the water storage tank shall not be greater than 5 meters, and the standard configuration is 3 meters.

3. The distance between the host and the surrounding walls or other obstructions cannot be too small.

4. If a rainproof awning is installed to protect the host from wind and sun, care should be taken to ensure that the heat absorption and heat dissipation of the host heat exchanger are not hindered.

5. The host should be installed in a place with a solid foundation, and ensure that it is installed upright and fixed with anchor bolts.

6. The display panel should not be installed in the bathroom to avoid affecting normal operation due to moisture.

(II) Installation of the water storage tank

1. The water storage tank can be installed outdoors with the heat pump outdoor unit, such as on the balcony, roof, or ground, or it can be installed indoors. The water tank must be installed on the ground. The installation site must have a solid foundation and must bear a weight of 500kg. It cannot be hung on the wall.

2. Valves are installed near the water tank and on the interface between the tap water pipe and the hot water pipe.

3. The dripping of the pressure relief port of the safety valve at the hot water outlet of the water tank is a pressure relief phenomenon, which plays a protective role. Just connect a drainage hose.

(III) Water connection

1. Connect the water outlet interface to the water tank with a PP-R pipe according to the diagram and seal it with raw tape.

2. Connect one end of the check valve to the tap water pipe and the other end to the water inlet pipe of the water tank.

3. Fill with water: Open the tap water inlet valve and open the tap in the hot water pipe. Start filling the water until the water overflows from the tap. Close the tap. Check for leaks in the water storage tank to ensure that there is no leakage. Note: For the first use, make sure that the water in the water tank is full before plugging in the power supply.

(IV) Heating pipe connection

1. Drill a 70-diameter pipe hole on the wall between the water tank and the heat pump main unit. The hole should be slightly tilted outward. Wrap the connecting pipe and a certain length of cable with a plastic tie, pass through the drilled pipe hole, and put on the wall pipe sheath on both sides.

2. Remove the caps on the thick and thin connecting pipes of the water tank, screw the thick and thin connecting pipes to the joints on the thick and thin connecting pipes of the water tank, and tighten them with a wrench.

3. Unscrew the caps on the thick and thin connecting pipes of the main unit high-pressure valve and low-pressure valve, screw the other end of the thick and thin connecting pipes to the pipe openings of the thick and thin connecting pipes of the working fluid inlet and working fluid outlet of the water tank, and tighten them with a wrench (Note: the thick pipe connects the three-way valve and the upper joint of the water tank). Note: Try not to bend the copper pipe, and do not fold or break the copper pipe even if it is twisted.

(V) Pipeline exhaust

1. Remove the caps from the regulating ports of the low-pressure valve and high-pressure valve.

2. Connect the vacuum pump interface to the fluorine injection port.

3. Ensure that the vacuum degree is qualified and the evacuation time is not less than 20 minutes. If it is inconvenient to evacuate, you can use R22 refrigerant to evacuate and check for leaks.

4. Use an Allen wrench to turn the valve core of the low-pressure valve and the high-pressure valve counterclockwise until they are fully open. Re-cover all caps and tighten them.

5. Leak detection: Use soapy water to check the connections of each pipe and the openings of each cap to see if there are any leaks. If there are any, tighten them with a wrench until there is no leak. No leakage is allowed.

Note: Air entering the system will cause the compressor to work abnormally.

(VI) Connection of electrical appliances

1. The socket must be reliably grounded.

2. The capacity of the power socket should meet the current power requirements of the host.

3. Do not place other electrical equipment around the power socket of the unit to avoid tripping the leakage protection plug. Note: The power socket must be reliably grounded.

4. Install the water temperature sensor probe into the probe tube in the middle of the water tank and fix it.

In short, the installation of the split air conditioner is relatively complicated, and ordinary installers are not competent. It is recommended that the installer has considerable experience in air conditioning installation.