Air-to-water Heat Pump
25
No.
Pre-check
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6 Is the water tank installed stably and are supports secure when the water tank is full?
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7 Is heat insulating measures for the water tank, outlet/inlet pipes and water replenishing pipe proper?
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8
Are the nilometer of water tank, water temperature indicator, controller, manometer, pressure relief valve
and automatic discharge valve etc. installed and operated properly?
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9 Does power supply accord with the nameplate? Do power cords conform to applicable requirements?
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10
Is power supply and control wiring connected properly according to wiring diagram? Is earthing safe? Is
each terminal stable?
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11 Are connection pipe, water pump, manometer, thermometer, valve etc. are installed properly?
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12 Is each valve in the system open or closed according to requirements?
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13 Confirm that the customers and inspection personnel of Part A are at site.
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14 Is Installation Check-up Table completed and signed by the installation contractor?
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Attention:
If there is any item marked with ×, please notify the contractor. Items listed above are just for reference.
Confirmed
Items after
pre-checking
General Evaluation: Debugging
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Amendment
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Judge the following items (if there is not any filling, qualification will be regarded.)
a: Power supply and electric control system b: Loading calculation
c: Heating problems of Unit d: Noise problem
e: Pipeline problem f: Others
Normal debugging work can’t be performed unless all installation items are qualified. If there is any
problem, it must be solved firstly. The installer will be responsible for all costs for delay of debugging and
re-debugging incurred by any problem which is not solved immediately.
Submit schedule of amending reports to installer.
Is the written amending report which should be signed after communication provided to installer?
Yes ( ) No ( )
12.2 Test run
Test run is testing whether the unit can run normally via preoperation. If the unit cannot run normally,
find and solve problems until the test run is satisfactory. All inspections must meet the requirements
before performing the test run. Test run should follow the content and steps of the table below:
The following procedure should be executed by experience and qualified maintenance men.
No.
Start up the pretest procedure
NOTICE:
before test, ensure that all power must be cut off, including the far- end power switch, otherwise, it may cause
casualty.
1
Ensure that the compressor of the unit is preheated for 8h.
Caution:
heat the lubricating oil at least 8h in advance to prevent refrigerant from mixing with the lubricating oil, which
may cause damage to the compressor when starting up the unit.
2
Check whether the oil temperature of the compressor is obviously higher than the outdoor ambient
temperature.
Caution:
if the oil temperature of the compressor is obviously higher than the outdoor ambient temperature, it means that
the
heating
tape of compressor is damaged. In that case, the compressor will be damaged easily. Therefore, repair the
heating tape before using the unit.
