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Field Work Instruction
5.5 Service & Maintenance Record
Service and Maintenance Record
No. Check Item Action Judgement
1 Is service space sucient YES or NO
2 Short Circuit of Discharge Air? YES or NO
3 Any Heat Inuence 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 External or Internal Surface? YES or NO
8 Checking of Screw and Bolts Tighten them if they are loosened.
TIGHTENED or NOT
TIGHTENED
9 Tightening of Terminal Screws
Tighten all terminal screws with a
phillips driver.
TIGHTENED or NOT
TIGHTENED
10 Are compressor terminals tightly xed
Check all compressor terminals are
tightly xed
GOOD or NOT GOOD
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 ow Check for smooth ow of 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 reversing valve. ditto GOOD or NOT GOOD
17 Check for leakage at check valve. ditto GOOD or NOT GOOD
18 Check for leakage at accumulator. ditto GOOD or NOT GOOD
19 Check for leakage at strainer. ditto GOOD or NOT GOOD
20
Check for leakage at electronic expansion
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 ow volume GOOD or NOT GOOD
23 Voltage among each Phase.
Check the voltage is within the
specied range
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) oC DB/ oC WB
29 Indoor Outlet Air Temp. (DB/WB) oC DB/ oC WB
30 Outdoor Inlet Air Temp. (DB/WB) oC DB/ oC WB
31 Outdoor Outlet Air Temp. (DB/WB) oC DB/ oC WB
32 High Pressure Switch MPaG
33 Low Pressure Switch MPaG
34 Operating Voltage V
35 Operating Current A
36 Instruction Cleaning of Air Filter to Client DONE or NOT YET
37 Instruction for Cleaning Method to Client DONE or NOT YET
38 Instruction for Operation to Client DONE or NOT YET
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