Справочник Пользователя для Carrier 38VYX050

GB - 1

Page

Precautions for safety ....................................................................................................................

2

Accessory and refrigerant .............................................................................................................

3

Selection of installation ..................................................................................................................

4

Refrigerant piping . ........................................................................................................................

5

Evacuating. ....................................................................................................................................

9/10

Electrical connections ....................................................................................................................

10

Final installation checks ................................................................................................................

11/12

• R-410A refrigerant operates at 50%-70% higher pressures than R-22. Be sure that servicing

equipment and replacement components are designed to operate with R-410A.

• R-410A refrigerant cylinders are pink.
• R-410A refrigerant cylinders  have a dip tube which allows liquid to flow out with the cylinder in a vertical

position with the valve at the top.

• R-410A systems should be charged with liquid refrigerant. Use a commercial type metering device

in the manifold hose in order to vaporize the liquid refrigerant before it enters in the unit.

• A vacuum pump is not enough to remove moisture from oil.
• Oils absorb moisture rapidly. Do not expose oil to atmosphere.
• Never open system to atmosphere while it is under vacuum.
• When the system must be opened for service, break vacuum with dry nitrogen.
• Do not vent R-410A into the atmosphere.
• Use only Carrier matching indoor units (Table I).

÷