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Air source heat pump graphic installation manual

PubDate:2017-03-16Author:Drying heat pumpSources:Refrigeration encyclopediaViews:4195


installation steps:


1. The positioning of the unit determines the position of the unit, mainly considering the bearing capacity of the floor and the influence of the unit's inlet and outlet.


2. Basic production, cement or channel steel can be used, and the foundation must be on the load-bearing beam of the floor.


3. Placement adjustment to ensure stable placement of the unit and a damping rubber pad between the unit and the foundation.


4. The connection of the waterway system is mainly the connection of pumps, valves and filters between the main engine and the water tank.


5, electrical connection, host power line, water pump, solenoid valve, water temperature sensor, pressure switch, target flow switch, etc. according to the wiring diagram requirements for electrical connection.


6, water pressure test, check the pipeline connection for water leakage


7. The machine is commissioned. Before starting the machine, the unit must be grounded. Check the insulation performance of the machine model with a megger. Check no problem, start running. Use the multimeter clamp flow meter to check the parameters such as the operating current and voltage of the machine.


8. Pipe insulation, insulated with rubber and plastic insulation materials, and the outer surface is fixed by aluminum or thin galvanized steel.



Household machine installation instructions:


The home machine is currently divided into two types: the integral machine and the split machine.


The whole machine, that is, the condenser and the water pump, are all integrated in the main unit. When the user installs, the main unit can be connected to the water inlet and outlet pipes and the water tank.


The splitter, that is, the condenser copper pipe is inside the water tank, and the user should not only connect the inlet and outlet pipes and the water tank but also connect the refrigerant into and out of the pipe and the water tank.



(1) Installation of the host


1. The installation of the heat pump main unit is the same as the installation of the outdoor unit of the air conditioner. Can be installed on exterior walls, roofs, balconies, and floors. The air outlet should avoid the windward direction.


2. The distance between the host and the water storage tank should not exceed 5 meters, and the standard configuration is 3 meters.


3 The distance between the main unit and the surrounding walls or other obstructions should not be too small.


4. If the rainproof shed is installed to protect the main unit from wind and sun, care should be taken to ensure that the heat absorption and heat dissipation of the main heat exchanger are not obstructed.


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


6. Do not install the display panel in the bathroom to avoid normal work due to moisture.


(2) Installation of the storage tank


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


2. Valves are installed near the storage tank and at the interface between the water pipe and the hot water pipe.


3, the safety valve of the water tank hot water outlet pressure drop is a pressure relief phenomenon, play a protective role, just take a drain hose.


(3) Waterway connection


1. Connect the PP-R pipe to the water storage tank according to the diagram and seal it with the raw material tape.


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


3. Fill the water: Open the tap water inlet valve and open the tap in the hot water pipe. Start filling the water until the water tap overflows, and close the tap. Store water for leak detection to ensure no water leakage. Note: For the first time, you must ensure that the water in the storage tank is full before plugging in the power.


(4) Heating pipe connection


1. Drill a Ф70 pipe hole in the wall between the storage tank and the heat pump main unit. The hole should be slightly inclined to the outside. Wrap the connecting tube and the cable of a certain length with a plastic cable ties, pass through the drilled pipe hole, and put 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 storage tank, and tighten them with a wrench.


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


(5) Pipeline exhaust


1. Remove the cap from the adjustment port of the low pressure valve and high pressure valve.


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


3, to ensure that the vacuum is qualified, the pumping time is not less than 20 minutes. If it is not convenient to evacuate, you can use R22 refrigerant to empty and leak.


4. Use the inner six wrench to turn the spool of the low pressure valve and high pressure valve counterclockwise until fully open. Replace all caps and tighten them.


5. Leak detection: Check the joints of the pipes and the caps with soapy water for leaks. If they are, they must be tightened with a wrench until they are leaking. No leakage is allowed.


Note: Air entering the system can cause the compressor to malfunction.


(6) Electrical connection


1. The socket must be grounded reliably.


2. The capacity of the power socket to be equipped 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 outlet 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 machine is more complicated, the general installer is not competent, and the recommended installer needs to have considerable experience in air conditioning installation.