14
LEAK TEST AND VACUUM
ENGLISH
Ⓐ
Ⓑ
Ⓕ
Ⓖ
Ⓙ
Ⓚ
Ⓛ
Ⓜ
Ⓗ
Ⓘ
Ⓒ
Ⓓ
Ⓔ
Low
pressure
High
pressure
Ⓐ
Manifold gauge
Ⓑ
Low-tension handle
Ⓒ
High-tension handle
Ⓓ
Service valve
Ⓔ
Liquid pipe
Ⓕ
Gas pipe
Ⓖ
Service port
Ⓗ
3-direction joint
Ⓘ
Valve
Ⓙ
Valve
Ⓚ
R410A cylinder
Ⓛ
Scale: using a gravimeter
Use one that measures up to 0.1 kg
If a high-density scale is unavailable, a
charging cylinder can be used.
Ⓜ
vacuum pump
- Perform a calculation to add a precise amount of refrigerant.
- Adding an imprecise amount of refrigerant could cause problems for the product.
- If the amount of added refrigerant goes beyond of ±10%, burning of the compressor and
poor performance of the indoor unit could occur.
WARNING
• Pipes that must be vacuumed: gas pipe, liquid pipe
• When installing or moving the product to another location, do not fill with any refrigerants
besides the regulated refrigerant (R410A).
• Mixing the original refrigerant with a different refrigerant can cause malfunctioning or
damage to the refrigerant cycle.
• If injecting gaseous R410A, you should change the refrigerant composition you use to a
liquid form.
!