Rinnai 50 Multi Split Type AC
AIR EVACUATION
Safety And Leakage Check
Electrical safety check
Perform the electrical safety check after
completing installation. Cover the following
areas:
Gas leak check
1. Soap water method:
Apply a soap-water solution or a liquid
neutral detergent on the indoor unit
connection or outdoor unit connections with
a soft brush to check for leakage of the
connecting points of the piping. If bubbles
emerge, the pipes are experiencing leakage.
2. Leak detector
Use the leak detector to check for leakage.
NOTE: The illustration is for example purposes
only. The actual order of A, B, C, D, and E on
the machine may be slightly dierent from the
unit you purchased but the general shape will
remain the same.
Indoor unit
check point
Outdoor unit
check point
A, B,C,D are points for the 4 Head model.
A, B,C,D, and E are points for the 5 Head model.
solutions until the unit operates properly.
1. Insulated resistance
The insulated resistance must be mor e
than 2MΩ.
2. Earthing work
After finishing earthing work, measure
the earthing resistance by visual detectio n
and using the earthing resistance tester.
Make sure the earthing resistance i s les s
than 4Ω.
3. Electrical leakage check (performing d u r i n g
test while unit is on).
During a test operation after complet e d
installation, the use the electropr obe an d
multimeter to perform an electrical leak age.
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