MAINTENANCE & REPAIR
33
COMPRESSOR INSTALLATION & MAINTENANCE / DIAGNOSTICS
TO CHECK CAPACITORS
1. Disconnect the cabinet from the power supply.
2. Make sure the capacitors are discharged before
checking. (Shunt across the terminal of capacitor
with a heavy insulated wire.)
3. Remove the wires from the capacitors.
4. Any capacitor found to be bulging, leading, or
damaged should be replaced.
5. Use a multimeter to check the run and start
capacitors for shorts or open circuits.
With a good capacitor, the indicator should first move
to a reading and then gradually increase to infinity.
If there is no reading change, an open circuit is
indicated.
If the multimeter remains on a low resistance reading,
a short circuit is indicated.
On run capacitor, touch probes to metal case and
each terminal. If meter shows any reading, a ground is
indicated. All defective capacitors should be replaced.
Dipping Cabinet 1298.02 2/3/03 1:14 PM Page 35
Summary of Contents for R-404A
Page 3: ...Introduction...
Page 13: ...SECTION II Principles of Operation...
Page 14: ......
Page 28: ......
Page 29: ...SECTION III Maintenance Repair...
Page 55: ...PARTS LISTING With Illustration Identification...
Page 56: ...CABINET PARTS EXPLODED VIEW 54 CABINET PARTS EXPLODED VIEW 2 1 3 4 7 9 8 6 10 11 5...
Page 60: ...CONDENSING UNIT EXPLODED VIEW 58 CONDENSING UNIT EXPLODED VIEW...
Page 62: ...ELECTRICAL PARTS EXPLODED VIEW 60 ELECTRICAL PARTS EXPLODED VIEW...
Page 64: ...1 6 7 2 4 3 5 LID EXPLODED VIEW 62 LID EXPLODED VIEW...
Page 66: ......
Page 67: ...ACCESSORIES...
Page 68: ......
Page 73: ...ADJUSTABLE LEG KIT 52 1831 01 ACCESSORIES 71...
Page 74: ...CASTER KIT 52 1830 01 72 ACCESSORIES...
Page 76: ...CAN CLAMP INSTALLATION 74 ACCESSORIES...
Page 79: ......
Page 80: ...by National Refrigeration Products 563 Corbin Road Honea Path South Carolina 800 486 8369...