Service & Maintenance Record - Hitachi Utopia RPI-2.5HRG Service Manual

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