Inspection and Maintenance of Air-to-Water Heat Pump for Hot Water

Air to the water heat pump for hot water daily use needs regular inspection and maintenance, otherwise, it will produce a series of problems, resulting in reduced work efficiency. Here's how to check and maintain air to the water heat pump for hot water.

Here is the content list:

• Routine inspection

• Maintenance of major structural components

• Maintenance of main waterway components

Routine inspection

Check whether the key of the wired controller for air to the water heat pump for hot water is sensitive and whether there is a display fault. View the temperature parameters, switch status, and load output. Check whether the voltage is normal. Check whether the water inside the pipeline is drained before use, and check whether there is water leakage in the pipeline and whether each valve is open normally. Check whether the water pressure is normal, listen to whether there is an abnormal sound when each load starts, and check whether the current is consistent with the nameplate after the stable operation. Check whether the parameters are within the normal range.

Maintenance of major structural components

Disassemble the junction box of air to a water heat pump for hot water, check whether the wiring terminals are tight and have signs of rust and blackening, and test whether the resistance values between the three-phase windings are the same. Check whether the fin is dirty and blocked, and clean it in time. General check for circuit breaker, AC contactor, and relay: whether the wiring terminals are tight, rusty, or blackened. Close the switch and check whether the input and output of each phase terminal are connected. Ac contactor and relay check whether the coil on/off is sensitive, complete suction. Capacitor: check for bulging and leaking oil. Motherboard: check whether the power lamp is on, whether the fuse is burned out, and whether there is a black burn mark on the board surface. Wire controller: check whether the key is sensitive, whether the interface display is incomplete, and whether the temperature can be set. Transformer: check whether the primary voltage and secondary voltage are consistent with the nameplate.

Maintenance of main waterway components

Water refill device: check whether the water refill pressure of the air to the water heat pump for hot water is more than two kilograms and whether the check valve is stuck. Filter device: check whether the filter is dirty and blocked. Clean it regularly. Exhaust device: check whether it can exhaust normally. If it is not normal, disassemble and clean the filter screen in the lower part. Water pump device: check whether it runs smoothly, whether the direction of rotation is correct, and whether it is blocked and idling.

Note, do not touch the refrigerant exhaust parts with your hands to prevent burns. Do not short-circuit the line connected to the protection device, or it may cause an accident. In case of fire, turn off the main power supply immediately and extinguish it. The air to the water heat pump for hot water shall not be operated near flammable gas (paint, paint, gasoline, etc.) to prevent fire or explosion.

Linuo Ritter International Co., Ltd continuously improves the staff's quality awareness and strictly requires the production quality of products.