Performing The Refrigerant Gas Leak Test - Samsung RD040MHXCA Series Installation Manual

I U
NSTALLING THE
Installing the Refrigerant Pipe Work (Continued)
20
E-
FJM RD040MHXCA_IM_00000_E_2.23.10.indd 20
NIT

Performing the Refrigerant Gas Leak Test

Use tools for R410a to prevent the inflow of foreign substances and resist

against the internal pressure.
Pressure test with dry Nitrogen gas only.

Apply pressure to the liquid side pipe
and gas side pipe with Nitrogen gas of
4.1MPa(594.6psi).
Keep it for minimum 24 hours to check if the
pressure drops.
If the pressure drops, check if there is gas
leak.
Maintain 1.0MPa(145psi) of the pressure
before performing vacuum drying and check
further gas leak.
Gas side pipe
Service port
You may get injured when the joint on the high pressure side detaches and
the gas comes in contact with your body. Make sure to tighten the joint to
prevent such accidents.
If you apply pressure more than 4.1MPa(594.6psi), the
pipes may be damaged.
Apply pressure using pressure regulator.
After applying Nitrogen gas, check the change of pressure
using pressure regulator.
If the pressure is changed, apply soapy water to check the
leak. Check the pressure of the Nitrogen gas again.
After checking first gas leak, maintain 1.0MPa(145psi) to
check further gas leak.
Manifold gauge
Low pressure side
Liquid side pipe
CAUTION
High pressure side
Pressure
adjustment
valve
(mandatory)
Nitrogen
gas
2010-2-24 19:57:32