Hitachi RPI-0.8FSG1 - Page 96

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