Test run
Preparation
After finish the installation tasks, please check the items:
1 Check the dip switch setting and short wiring
2 Power cable
3 Communication wire
4
Water circuit
Check if the power cable is connected correctly, and check if the screws have been screwed down.
Check if the communication wire is connected correctly.
Check if the water pipes are correctly connected, and the pipe dimensions are correct.
Check if all the shut off valve and manual valve is opened, check if all the joint is fastened.
Heatproof measures must be taken for water outlet pipes and water inlet.
Please use specified cables.
Please adopt specified communication wire.
19
Water or Brine Filling
1 with water pipe connected to the unit s water system, and open all the air exhaust valves in water system
.
2. Discharge the air for both domestic hot water sytem and air conditioning water system, including all usage
and there is no air inside the water system.
Turn on the heat pump
select heating, domestic hot water mode , check whether the unit is running properly or not,the
compressor will be started in 3~5 minute after powered on.
Running
MOST IMPORTANT
!
3.Make sure it is not in cooling mode during first operation or test running unitl you make sure
the air conditioning circulation pump is working properly and water is recycling smoothly.
2 Select a big enough water pump for the air conditioning water circuit
1.Alway keep electricity connection with heat pump to enable the antifreeze function.
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,
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.
.
.
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and fill water into the system. Keep the air exhaust valve open untill there is continous water coming out
of the air exhaust valve. Then close the air exhaust valve.
terminals such as domestic hot water tank, fan coils,radiators and etc. To make sure all system are full of water
Note!
To avoid the heat pump to be frozen, if the air temp is possible to be under zero degree in winter,you need
.
to use brind(glycol) to replace pure water in case of electricity cut off accident during winter
