Electrolux FAC124P1A Instruções de Operação descarregar pdf (Página 126)

Section 6 Sealed System

6-12

Charging The System

Preparing The Charging Cylinder:

A. Recharging refrigerant tank must have at least

eight (8) ounces more refrigerant than required to

recharge.

B. Plug in cylinder heater and bring pressure up 30

pounds above gauge pressure at ambient

temperature. Do not exceed maximum temperatures.

To Charge System:

1. Make certain that hand shut-off valve to vacuum

pump is closed.

2. Close high-side manifold gauge valve.

3. Set charging cylinder scale to pressure indicated on

cylinder pressure gauge.

Check the serial plate for the correct refrigerant

type. It is extremely important to verify the

type of refrigerant in the system before starting

any sealed system repairs. If a filter-drier has

been added to the system, add .78 ounces of

refrigerant to allow for the additional volume of

the sealed system.

After charging the system with liquid be certain

to wait at least 5 minutes before starting the

compressor to give the refrigerant a chance to

disperse throughout the system. Otherwise the

compressor could be damaged by attempting to

pump excessive quantities of l liquid.

CAUTION

4. Observe refrigerant level in sight glass. Subtract

amount to be charged into system and note shut off

point.

5. Open charging cylinder valve slowly and allow

proper charge to enter system.

6. As soon as refrigerant in sight glass has gone down

to predetermined level, close charging cylinder valve.

7. Allow system to sit for five minutes.

8. Turn on AC unit to its highest (coldest) setting.

Run unit for a few minutes and monitor system

pressures.

9. When satisfied that the unit is operating correctly,

clamp the high-side process tube with the pinch-off

tool while the unit is still running. Remove line tap

valve. Solder process tube closed.

10. Turn off AC unit. After a few minutes check process

tube for leaks.

Maintain, but do not exceed, this 30 pound

increase in gauge pressure during system

charging.

CAUTION

Do not use an external heat source on cylinder

or exceed maximum gauge pressure on charging

cylinder.

WARNING

Disconnect the charging cylinder heater at this

time to prevent the cylinder pressure from

exceeding its maximum limits.

WARNING

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