Hitachi RAS-25QH1 Technische Information Seite 241

HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY
. 1. Connect the high pressure side and low pressure side service valves using a pipe.
service value and the large
diamter service valve using
the reducing union and
copper pipe as shown on
the right.
Charge refrigerant of 300g
after vacuuming (3X 1)
Nee
Connect the small diameter /
Outdoor unit
| Reversing
(valve
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i 1 Small diameter
Large dia. service valve
Reducing union
se (2/8" and 3/8")
Copper pipe
x (2/8")
service valve
- Copper pipe (2/8" and 3/8")
Parts to be prepared
Reducing union
2/8" (6.35mm)
3/8" (9.52mm)
Shorting leads
2 leads approx. 10cm long
with alligator clip or IC clip
Do not operate for 5 minutes
fo] mi tale] g <3
The operation method is the same as "How to operate using the connector for servicing the outdoor unit".
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The charging amound of 300g is eqivalent to the load in normal operation.