Afrigreen YASA-135HS Manuel d'installation et d'instruction - Page 13

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AIR SOURCE HEAT PUMP WATER HEATER

5. Debugging and preoperation

5.1 Preparation before debugging.

a) Heat pump water heater unit inspection

Check overview and inside pipe system of unit, whether it is damaged during transportation.

Check whether there is air in pipe of unit, if there is , should use manual vent valve on the water

pipe inside the unit and vent valve of water pump to drain out of the air.

Check if fan blade is interfered by fixed board and protecting wire net of fan.

b) Check Power Distribution System

Check whether the supplied power is matched with required supplying power in the manual or

Nameplate of unit.

Check whether all of the supplying power and controlling lines are connect properly, whether

wiring correctly, if grouding is reliable, whether all of wire connecting terminal are firm.

c) Check pipe system

Check system pipes, re-water system, returm pipe, presure gauge, thermograph, valve, switch

of water level, wether they are correct installation.

Check whether valves in system should open have opened and should shut off have shut off.

Check whether heat insulation measurement are good.

5.2 Preoperation

Preoperation must be handled by professional technical.

The whole preoperation could be done after checked whole system and confirm they meet

requirements.

Turn on the power, open the unit, mainframe delay 3 minutes to start. To three phase power

unit, check whether fan, water pump turn correctly at first, if not correct, should shut off

power at once, adjust the phase sequence. Measure compressor running current, to check

whether there is any abnormal sound.

Check whether unit meet requirement after running for some days(usually for 3days),

once ok, it could be put into use normally.

5.3 Normal running

Heating operation process: power on---unit water pump running---water flow switch

detection---fan motor running---compressor running (When the low water level switch

disconnect , re-water solenoid valves open to rewater).

Operation control