Charging The System - Electrolux Side by Side Refrigerator Service Manual

Section E- Refrigeration System
To achieve the required levels of evacuation, a properly maintained two stage
vacuum pump in good condition is required. It is absolutely essential to maintain
your vacuum pump according to the manufacturer's instructions including required
oil changes at the recommended intervals. Vacuum pump oil should always be
changed after evacuating a contaminated system.
Vacuum pump performance should be checked periodically with a micron gauge.
1. Make certain that charging cylinder valve, hand shut-off valve, and manifold
gauge valves are closed.
2. Start vacuum pump.
3. Open hand shut-off valve and slowly open both manifold valves, turning
counterclockwise, for two full rotations.
CAUTION
If high vacuum equipment is used, just crack both manifold valves for a few minutes
and then open slowly for the two full turns counterclockwise. This will prevent the
compressor oil from foaming and being drawn into the vacuum pump.
4. Operate the vacuum pump for a minimum of 30 minutes to a minimum of
29.9" (500 micron) vacuum.
5. Close hand shut-off valve to vacuum pump. Watch compound gauge for
several minutes. If reading rises, there is a leak in the system, go to step 6. If
no leak is indicated, stop vacuum pump. System is now ready for charging.
6. If a leak is indicated, stop vacuum pump and introduce a small charge of
refrigerant into system by cracking valve on bottom of charging cylinder until
system is pressurized to 40 or 50 lbs psig.
7. Leak test low-side. Close compound gauge. Run compressor for a few
minutes and leak test high-side. When leak is found, recapture refrigerant
using EPA approved recovery system Repair and go back to step 1.

Charging The System

CAUTION
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.
CAUTION
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 liquid.
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