Samsung ASV18PSMN 사용자 설명서
42
Performing the gas leak tests
Make sure to check for gas leaks before completing the installation process (connecting the assembly pipe and hose between
To check for gas leaks on the outdoor unit,
Check the valve A and B using a leak detector.
To check for gas leaks on the indoor unit,
Check the valve A and B using a leak detector.
To check for gas leaks on the indoor unit,
Leak test with nitrogen (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and recirculating the R410A, it’s responsible of
In order to detect basic refrigerant leaks, before recreating the vacuum and recirculating the R410A, it’s responsible of
installer to pressurize the whole system with nitrogen (using a cylinder with pressure reducer) at a pressure above 4 MPa (40 bar)
(gauge).
Leak test with R410A (after opening valves)
Before opening valves, discharge all the nitrogen from the system and create vacuum according to page 39-41.
Before opening valves, discharge all the nitrogen from the system and create vacuum according to page 39-41.
After opening valves, check leaks using a leak detector for refrigerant.
Pump down (before disconnecting the refrigerant connections for unit repair, removal or disposal)
Pump-down is an operation intended to collect all the system refrigerant in the outdoor unit.
This operation must be carried out before disconnecting the refrigerant tubing in order to avoid refrigerant loss to the
Pump down (before disconnecting the refrigerant connections for unit repair, removal or disposal)
Pump-down is an operation intended to collect all the system refrigerant in the outdoor unit.
This operation must be carried out before disconnecting the refrigerant tubing in order to avoid refrigerant loss to the
atmosphere.
Turn the system on in cooling with fan operating at high velocity.
( Compressor will immediately start, provided 3 minutes have elapsed since the last stop).
After 2 minutes of operation, shut the suction valve with the same wrench.
Disconnect tubing. After disconnection, protect valves and tubing ends from dust.
Compressor damage may occur if run at a negative suction pressure.
If using a multi system, install as described in the installation manual supplied with the outdoor unit.
C
D
A
B
Test part for indoor unit
Tightening torque for body cap
(Refer to the table)
Charging
core
Spindle
Tightening torque for charging port cap
(Refer to the table)
R-22: Diameter of the screw - 7/16-20UNF
R-410A: Diameter of the screw - 1/2-20UNF
Test part for outdoor unit
Outer diameter
(mm)
Ø6.35
20~25
20~25
25~30
20~25
25~30
10~12
30~35
35~40
35~40
Ø9.52
Ø12.70
Ø15.88
Ø15.88
Ø15.88
Ø15.88
Tightening torque
Body cap (N•m)
Charging port cap (N•m)
▶
Before inspecting the leakage, use a torque wrench to close
the cap for the service valve. (Comply with a tightening torque
to prevent any leakage.)
▶
To check for any possible leakage, insert inert gas into the pipes
connected to indoor/outdoor units and check the connection part
of the indoor/outdoor units with soap lather or liquid for leakage test.
1 N.m = 10 kgf.cm