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Installation Manual -
A-VMH18D
V
,28T
V
,36Q
V,48PV-1
25
Safety And Leakage Check
Electrical safety check
Perform the electrical safety check after
completing installation. Cover the following
areas:
1.
Insulated resistance
The insulated resistance must be more
t han
2M
Ω
.
2.
Grounding work
After finishing grounding work, measure
t he
grounding resistance by visual detection
and
using the grounding resistance tester.
Make
sure the grounding resistance is less
than 4
Ω
.
3.
Electrical leakage check (performing during
test while unit is on)
During a test operation after completed
installation, use
a
multimeter to perform
an
electrical leakage
check. Turn off the unit
immediately if
leakage happens. Try and
evaluate different
solutions until the unit
operates properly.
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
and
D on the
machine may be slightly different from the
unit you purchased but the general shape will
remain the same.
Indoor unit
check point
Outdoor unit
check point
Fig. 9.4
A, B,
C,
D are points for one-four type.