Install hand valves at the process stub ends. Hand
valves will be less restrictive to flow because of a larger
opening. They will also be easier to use during repair
procedures.
EVACUATION
Once the system has been cleaned and components
have been replaced, you are ready to initiate the final
servicing procedures necessary to achieve proper cabi-
net operation. Drier should be replaced prior to system
processing.
Pull an evacuation to approximately 50 microns.
CHARGING
You should use a charging cylinder to measure in the
correct amount of refrigerant. The charging methods are:
1. Add the refrigerant to the system until you reach a
balanced pressure. This will give you an approxi-
mate static charge.
2. Weigh in the refrigerant using a scale calibrated in
ounces.
The cabinet’s operation is now ready to be tested. A
final check of the refrigeration lines should be made
before running the cabinet.
Be sure the refrigeration lines are not kinked or rub-
bing against each other.
Also check that the door seals properly. An air leak will
affect proper operation, and the cabinet’s ability to
reach its coldest temperature.
Run the cabinet at both 100% run, and a cycling tem-
perature for at least 24 hours. If the temperature and
pressures are correct, the system can be considered
repaired.
Hermetic systems should now have their process
stubs pinched off, hand valves removed and the ends
brazed shut.
MAINTENANCE & REPAIR
41
Summary of Contents for BT30RF- EXPR
Page 15: ...SECTION II...
Page 26: ...ELECTRICAL BOX WIRING DIAGRAM 00 0056 00 WIRING DIAGRAM 25...
Page 27: ...ELECTRICAL BOX WIRING DIAGRAM 00 0057 00 26 WIRING DIAGRAM...
Page 28: ...ELECTRICAL BOX WIRING DIAGRAM 00 0064 00 WIRING DIAGRAM 27...
Page 49: ...INSTRUCTIONS SOLID DOOR REMOVAL INSTALLATION ADJUSTMENT 48 MAINTENANCE REPAIR...
Page 63: ...CASTER INSTALLATION INSTRUCTIONS 62 MAINTENANCE REPAIR...
Page 69: ...ELECTRICAL REFRIGERATION INFORMATION BT30RF EXPR Explosion Proof Refrigerator Freezer...
Page 79: ...ELECTRICAL REFRIGERATION INFORMATION ST260RI ST260RIR...
Page 81: ...MODULE 1 ANALOGIC PARAMETERS MODULE 1 PARAMETERS 83...
Page 83: ...MODULE 1 DAYTRONICS PARAMETERS MODULE 1 PARAMETERS 85...
Page 102: ...EVAPORATOR FAN SHROUD ASSEMBLY 104 EVAPORATOR FAN SHROUD ILLUSTRATION...
Page 105: ...EVAPORATOR FAN AREA BT30RSFMS BT50RSFMS EVAPORATOR FAN AREA ILLUSTRATION 107...