Hitachi RPI-0.8FSG1 Service Manual page 96

TROUBLESHOOTING
Checking Item
Outdoor Expansion Valve
8
MV3 Opening
(For 24, 30HP)
Outdoor Expansion Valve
9
MVB Opening
(For 24, 30HP)
Discharge Pressure
10
(High)
Suction Pressure
11
(Low)
Discharge Gas
12 Temperature on the Top of
Compressor MC1 (TD1)
Discharge Gas
13 Temperature on the Top of
Compressor MC2 (TD2)
(For 8 to 30HP)
Discharge Gas
14 Temperature on the Top of
Compressor MC3 (TD3)
(For 16 to 30HP)
Discharge Gas
15 Temperature on the Top of
Compressor MC4 (TD4)
(For 20 to 30HP)
Evaporating Temperature 1
16
at Heating
Evaporating Temperature 2
17
at Heating
(For 16 to 30HP)
Evaporating Temperature 3
18
at Heating
(For 24, 30HP)
1-86
from Previous Page
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW2
Checking Contents
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
PSW2
PSW3
: Open-circuited
PSW2
: Short-circuited
PSW3
: Open-circuited
PSW2
: Short-circuited
PSW3
: Open-circuited
PSW2
: Short-circuited
PSW3
: Open-circuited
PSW2
: Short-circuited
PSW3
: Open-circuited
PSW2
: Short-circuited
PSW3
: Open-circuited
PSW2
: Short-circuited
PSW3
: Open-circuited
: Short-circuited
~
(%)
~
(%)
~
(MPa)
~
(MPa)
~
o
( C)
~
o
( C)
~
o
( C)
~
o
( C)
~
o
( C)
~
o
( C)
~
o
( C)