Perform the electric safe check after
completing installation:
1. Insulated resistance
The insulated resistance must be more than
2M
.
2. Grounding work
After finishing grounding work, measure the
grounding resistance by visual detection and
grounding resistance tester. Make sure the
grounding resistance is less than 4
.
3. Electrical leakage check (performing during
test running)
During test operation after finishing installation,
the serviceman can use the electroprobe and
multimeter to perform the electrical leakage
check. Turn off the unit immediately if leakage
happens. Check and find out the solution
ways till the unit operate properly.
Ω
Ω
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.
CAUTION
Elec trical safet y check
●
Gas leak che ck
●
1 .
Appl y a so ap wa ter or a liquid neutral
detergent on the indoo r unit connection
or ou tdoor unit connec tions by a soft
brush to check for leakage o f the
conn ecting point s of th pipin g. If bubbles
come out, the pipes ha ve leakage.
2 .
Soap water met hod:
Leak detector
Use the leak detector to check for leakage.
Safety and leakage check
15
Indoor unit
check point
Outdoor unit
check point
n
m k
j i h
A
B
C
a
c
b
d
e
f
a, b,c, d,h,i ,j , k are poin ts fo r on e-tw o typ e.
a, b,c, d,e,f ,,h,i,j,k,m ,n a re p oints for one-thre e type.
A, B,C,D ar e po ints for one- four type .
A, B,C,D, E are points for on e-fiv e type.
Indoor unit
check point
Outdoor unit
check point
29
AIR PURGING
F ig.59
Fig.60
NOTE:
The illustration is for explanation
purpose only. The actual order of A, B, C
D and E on the machine may be slightly
different from the unit you purchased. The
actual shape shall prevail.
E
