Hitachi RAS-10SH3 - How to Operate the Outdoor Unit Independently

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HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY
The operation method is the same as "How to operate using the connector to servicing the outdoor unit".
※1 The charging amount of 300g is equivalent to the load in normal operation.
1. Connect the large dia. pipe side and small dia. pipe side service valves using a pipe.
Parts to be prepared
Reducing union
2/8" (6.35mm)
3/8" (9.52mm)
Copper pipe (2/8" and 3/8")
Shorting leads
2 leads approx. 10 cm long
with alligator clip or IC clip
(1)
(2)
(3)
Connect the small diameter ser-
vice value and the large diame-
ter service valve using the re-
ducing union and copper pipe
as shown on the right.
Charge refrigerant of 300g
after vacuuming ( ※1)
Do not operate for 5 minutes
or more.
Outdoor unit
Large dia.service valve
Reducing union
(2/8" and 3/8")
Copper pipe
(2/8")
Small diameter
service valve
Compressor
Reversing
valve
1
Lighting mode of the self-diagnosis lamp
Mounting location of the self-diagnosis lamp
2A-FUSE
3.15A-FUSE
DC VOLTAGE MEASURING POINT(-)(IPM 33)
DC VOLTAGE MEASURING POINT(+)(IPM 25)
COMPRESSOR CONNECTOR（CN1）
CONNECTOR（CN24）
OUTDOOR FAN
IPM
MAIN P.W.B
SELF-CHECK CONNECTOR（CN30）
LD301
LD302
LD303
TEST SWITCH
LD301(RED)
LD302(RED)
LD303(RED)
TEST SWITCH
黑棕
蓝
SELF-CHECK CONNECTOR（CN30）
OUTDOOR FAN CONNECTOR（CN24）
DC VOLTAGE MEASURING POINT(-)(IPM N)
DC VOLTAGE MEASURING POINT(+)(IPM P)
RAC-18SH3
RAC-10SH3、RAC-14SH3
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