Ecoplus SWBC-19.5H-B-S Installation Instructions Manual page 18

Ⅷ.Installation instructions
Running Test and operation
2.Running test
This running test must be performed by professional staff!
1 Overall test can be run if the entire system inspection is conformed to regulations.
1 Connected to power, start the heat pump, host unit delays three minutes then auto-start.
For three-phase power supply unit, first check whether the fans and pumps' rotary
direction correct or not, if not, immediately shut down the power and adjust phase
sequence. Measure the compressor operation current, and if any abnormal noise.
Check whether the unit conform to the requirements, run for a period of time
(general 3 days),after that, the unit can be used normally.
3.Normal operation
1 Heating process: start - up - water pumps runs -water flow switch inspection --- Fan
operation compressor operation (when the low water level cut off, water supply
induction valve opens
1 Operation Control:
1 Water level control:When the low level switch disconnect, open the water supply
induction valve to supply enough water, meanwhile stop the water supply pump.
Open the water supply pump when high level switch closed, After high-level switch
closed for two minutes , open water supply induction valve ( at least 2 minutes).
1 When water pump is on and the high level switch cut off ,if water temperature <(set
Temperature -5 degrees) , shut down water supply for tanks, If water tank temperature
> (temperature -2 degrees) then open the water supply induction valve , after high-
level switch closed for two minutes stop the water supply induction valve.When
water pumps stopped, whatever conditions , should supply enough water. (Water
supply switch on at 2 minutes).
1 For the first power-on boot, the circulating water pump, compressor, fan motor runs
after low level switch closed.
1 During the unit operation, circulating pump open.When the unit stopped, the
circulating pump will be delayed 30 seconds then stop functioning.
1 When water pumps open, meanwhile open water return induction valve, 10 minutes
later, test the return water temperature, when the return water temperature > (water
temperature -5 degrees), the return water induction valve stops. If the return water
temperature <(tank water temperature -10 degrees), open the water return valve so
that the water supply pump constantly store the hot water.When water supply pump
closed, shut down the water return valve at the same time.
1 For normal start-up, the 4-way valve cut off, only when defrosting ,the unit will work
in normal.
O N
(Set water
temperature-5)
Water temperature
Set water
temperature
16
Water heater
OFF