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1.18. Trial Operation
1.19. Inspection prior to trial operation
Heat pump unit inspection. Please inspect the following items on the heat pump unit,
•
1. Whether all the installation job has been finished correctly.
2. Whether the space is sufficient for normal operation and maintenance.
3. Whether all the fasteners are in tight status.
4. Whether the unit series number has been set correctly.
Piping system inspection. Please inspect the following items on the piping system,
•
1. Whether all the piping has been completed correctly.
2. Whether all the manual valves have been put in correct status.
3. Whether the insulation has been done on the piping correctly.
Power system inspection. Please inspect the following items on the power system,
•
1. Whether the power supply voltage is within the specified range.
2. Whether all the wirings have been tightened reliably.
3. Inspect all the wiring with reference to the wiring diagram.
4. Whether the system has been grounded reliably.
5. Whether the leakage protection device could act effectively.
Tank status inspection. Please inspect the following items on the piping system,
•
1. Whether the tank installation job has been finished correctly.
2. Whether the tank temperature sensor has been installed correctly.
3. Whether the tank is full of water.
Please power on the hot water system and check the central controller display to see whether
there is any error information. Please do the trouble shooting with the information listed in
chapter 8. If there is no error information, please start the hot water system after 12 hours. Please
Picture 5.9
DIP
1
2
3
ON
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
Table 5.9 Series No. Setting
Unit
4
OFF
No.1
OFF
No.2
OFF
No.3
OFF
No.4
OFF
No.5
OFF
No.6
OFF
No.7
ON
No.8
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