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Commissioning and Adjusting
2. The compressor oil heater must have been operational
for at least 6–8 hours before a compressor start can be
initiated.
3. Start the unit by turning on the heating control
system and therefore switching on the unit.
4. The water pump will start (the flow switch should
operate), then fan motor, and finally the compressor.
5. Adjust the flow rate to make water inlet/outlet
temperature difference around 5°C.
Note:
Ensure that the heating control system is in the off
position first.
1. Before commissioning, ensure the whole system has
been properly flushed and filled with water.
2. Check the pipe work system for leaks.
3. The heating system is filled with water and inhibitor
to the required pressure between 100-200 kPa or 15-
30PSI.
4. Vent air out the system using the air venting valves.
Compressor oil heater
· The unit is equipped with a compressor oil heater
which heats the compressor oil before start-up when
outdoor temperature is low.
· The unit must be in the standby state for 6-8 hours before
the unit is switched on for the first time. This is so the
compressor oil heater has the compressor oil at the
correct temp before the FIRST start, this will ensure no
damage is done to the compressor on start up.
Preparations- Filling and Flushing
Startup and Inspection
The temperature difference between ST/RT can be
adjusted by increasing the flow rate by either using
circulation pumps or control valve.
· Air will initially be released from the water as its
heated and further venting may be required.
· If a bubbling sound can be heard from the heat pump,
the circulation pump, underfloor and or radiators then
the entire system will require further venting.
· When the system is stable (correct pressure and all air
eliminated) the automatic heating control system can
be set as required.
Temperature sensor calibration.
If the temperature sensor readings is with some error.
Service parameter come with calibration function.
Insert default setting
Among User, service and manufacturer parameters,
there is a function to insert each privilege level factory
default setting . Change “NO” to “YES”, press <Enter>
, it will display “Operation succeed” .
Initialization
On manufacturer parameter, initialization function
could restore all user, service and manufacturer
parameters to factory default settings. Change “NO” to
“YES”, press <Enter> , it will display “Are you sure?”
,press <Enter> to confirm. It display “Loading… ”.
then “Warning Initialization done, please switch-off !.
The controller needs to be power off and then power on
again.
Reset comp operating hours
Change “No” to “Yes” could reset compressor operating
hours to 0.
Air in the System after Startup
1. Turn the isolator switch on.
