4-7
FIELD WORK INSTRUCTION
4.7 Service & Maintenance Record
Service & Maintenance Record
No. Check Item Action Judgement
1
Is service space sufficient?
YES or NO
2
Short Circuit of Discharge Air?
YES or NO
3 Any Heat Influence
YES or NO
4 Is earth wire connected?
YES or NO
5
Refrigeration Piping GOOD or NOT GOOD
6
Fixing of Units GOOD or NOT GOOD
7
Any Damage on Outer or Internal
Surface?
YES or NO
8 Checking of Screw and Bolts Tighten if loosen.
TIGHTENED or
NOT TIGHTENED
9 Tightening of Terminal Screws
Tighten all terminal screws by
phillips driver.
TIGHTENED or
NOT TIGHTENED
10
Are compressor terminals
tightly fixed?
Push all terminals.
PUSHED or
NOT PUSHED
11 Insulation Resistance
Measure insulation resistance by
insulation resistance-meter.
Comp. and Fan
Motor: greater than 3MΩ
Others: greater than 3MΩ
GOOD or NOT GOOD
12 Does drain water smoothly flow?
Check for smooth flow by
pouring water.
GOOD or NOT GOOD
13
Check for leakage at compressor.
Check for any leakage.
GOOD or NOT GOOD
14
Check for leakage at
outdoor heat exchanger.
ditto GOOD or NOT GOOD
15
Check for leakage at
indoor heat exchanger.
ditto GOOD or NOT GOOD
16
Check for leakage at 4-way valve.
ditto
GOOD or NOT GOOD
17
Check for leakage at check valve.
ditto
GOOD or NOT GOOD
18
Check for leakage at liquid tank.
ditto
GOOD or NOT GOOD
19
Check for leakage at strainer.
ditto
GOOD or NOT GOOD
20
Check for leakage at
electronic Ex. Valve.
ditto GOOD or NOT GOOD
21
Check for leakage at piping.
ditto
GOOD or NOT GOOD
22
Check direction of fans.
by Viewing or Air Flow Volume
GOOD or NOT GOOD
23
Voltage among each Phase.
higher than 220V
GOOD or NOT GOOD
24 Vibration and Sound
Check fan, compressor, piping,
etc.
GOOD or NOT GOOD
25 Activation of Each Operation Mode
Check activation of COOL,
HEAT, STOP and TEMP. switches.
GOOD or NOT GOOD
26
High Pressure Cut-out Switch
Check actual activation value.
GOOD or NOT GOOD
27
Check activation of drain mechanism. Check it during cooling operation. GOOD or NOT GOOD
28
Indoor Inlet Air Temp. (DB/WB)
o
C DB/
o
C WB
29
Indoor Outlet Air Temp. (DB/WB)
o
C DB/
o
C WB
30
Outdoor Inlet Air Temp. (DB/WB)
o
C DB/
o
C WB
31
Outdoor Outlet Air Temp. (DB/WB)
o
C DB/
o
C WB
32
Operating Voltage V
33
Operating Current A
34
Instruction Cleaning of Air Filter
to Client
DONE or NOT YET
35
Instruction for Cleaning
Method to Client
DONE or NOT YET
36
Instruction for Operation to Client DONE or NOT YET
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