Refrigerant Charge - Jenn-Air Luxury Series Service Manual

Integrated side-by-side refrigerators

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User manual (80 pages)

User manual (80 pages)

Table Of Contents

Table of Contents

Service Procedures

To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test

procedures require power to be connected. Discharge capacitor through a 10,000 ohm resistor before attempting

to service. Ensure all ground wires are connected before certifying unit as repaired and/or operational.

Low Side Gauge

Thermistor

Vacuum Gauge

Valve

Charging Hose

Compressor

Process

Tube

.6 cm Copper

Tubing

Vacuum Pump

Equipment Setup For Evacuation And Charging

5. After compound gauge (low side) drops to

approximately 29 inches gauge, open valve “C” to

vacuum thermocouple gauge and take micron reading.

NOTE: A high vacuum pump can only produce a good

vacuum if oil in pump is not contaminated.

6. Continue evacuating system until vacuum gauge

registers 600 microns.

7. At 600 microns, close valve “A” to vacuum pump and

allow micron reading in system to balance. Micron

level will rise.

• If in 2 minutes, micron level stabilizes at 1000

microns or below, system is ready to be charged.

• If micron level rises above 1000 microns and

stabilizes, open valve “A” and continue evacuating.

• If micron reading rises rapidly and does not stabilize,

a leak still exists in system.

Close valve “A” to vacuum pump and valve “C” to

vacuum gauge. Invert charging cylinder and open

charging cylinder valve “F” to add partial charge for

leak checking. With leak detector, check manifold

connections and system for leaks. After locating

leak, capture refrigerant, repair leak, and begin at

step 1.

16021730 Rev. 0

WARNING

High Side Gauge

Valve

Drier/Process Tube

Charging Hose

Valve

Charging

Cylinder

Charging

NOTE: Do not use captured or recycled refrigerant in

Maytag units. Captured or recycled refrigerant

voids any warranty.

NOTE: Charge system with exact amount of refrigerant.

Refer to unit serial plate for correct refrigerant

charge. Inaccurately charged system will cause

future problems.

To charge system:

1. Close valves “A” to vacuum pump and “C” to vacuum

gauge and “E” to low side manifold gauge.

2. Set scale on dial-a-charge cylinder for corresponding

HFC134a pressure reading.

3. Open valve “F” to charging cylinder and let exact

amount of refrigerant flow from cylinder into system.

Close valve.

Low side gauge pressure should rise shortly after

opening charging cylinder valve as system pressure

equalizes through capillary tube.

If pressure does not equalize, a restriction typically

exists at capillary/drier braze joint.

4. If pressure equalizes, open valve “E” to low side

manifold gauge and pinch off high side drier process

tube.

5. Start compressor and draw remaining refrigerant from

charging hoses and manifold into compressor through

compressor process tube.

6. To check high side pinch-off drier process tube. Close

valve “D” to high side gauge. If high side pressure

rises, repeat high side pinch-off and open valve “D”.

Repeat until high side pinch-off does not leak.

7. Pinch-off compressor process tube and remove

charging hose. Braze stub closed while compressor is

operating.

8. Disconnect power. Remove charging hose and braze

high side drier process tube closed.

9. Recheck for refrigerant leaks.