Operation Manual

Length of the connecting pipe (m)
7
8
9
10
Add amount (g)
0
50
100
150
Add Refrigerant
If the connecting pipe is longer than 7 meters, add refrigerant as needed. (Cool only type) add amount
A=(Lm-7m)X15g/m; (Heat pump type) add amount A=(Lm-7m)x50g/m. (A: add refrigerant amount, L: the
length of connecting pipe)
Connect refrigerant bottle to charging hose, convert it, than fill liquid refrigerant as foregoing table.
Close the gas shut-off valve, discount the manifold gauge, and open gas shut-off valve again.
Tighten nuts and cap of each valve
Test
Having accomplished air installation and leak test, test operation must be done. Before test operation, wiring
safety inspection must be carefully done.
When system connects power for first time, check and emergency
switch only act as self-check, and in the proceed operation, it uses as
emergency operation switch only.
3. If the indicator lamps light first, go out in succession, the system is
normal, otherwise, there has lamp flashing and indicating that system
has wrong. Please check system at once.
2. Press check switch, then system operates as test.
1. Connect system with power plug, and open front panel
Use self-check switch
Test operation procedure:
PIPE
Liquid pipe
Gas pipe
DIAMETER OF PIPE
TORQUE (N
.
m)
Discharge the air procedure
Connect charging hose(low pressure) of manifold gauge to the service port of gas shut-off
valve.
Open the valve of the low pressure and close high pressure valve of manifold gauge.
Purge the air from the system using the vacuum pump until its pressure(low pressure side) is
below 12Pa.
Close the low pressure valve and remove the charging hose from service port .
Use Allen wretch to turn the valve cork of liquid side for 90 in counter-clockwise, and close it
after 10 seconds. Use soapy water to check for gas leakage especially from service port and
flare.
Fully open gas shut-off valve and liquid shut-off valve.
Mount the valve nuts and service port cap to shut-off valve and service port .
Notice
Turn the gas shut-off valve to close, connect charging hose(low pressure) to the service valve, then
open gas
shut-off valve again.
Discharge air as foregoing method.