Refrigeration Maintenance (Rev. 04/03)
95
Set Up and Test of Evacuation Equipment
NOTE: Refer to the previous two pages for the following
discussion.
1.
Connect the evacuation system to a 110 Vac power
supply. Connect a gauge manifold and refrigerant
supply to the fitting above valve V-4. Turn the micron
gauge ON.
2.
Close valves V-1, V-3 and V-4. Valve V-2 is open.
3.
Turn the vacuum pump ON.
4.
Open valve V-1 at the pump. The micron gauge needle
will move to the left. (Refer to micron gauge scale
diagram—previous page.)
LEAK
Isolate the pump from the system by closing the
proper valve. Watch the movement of the vacuum
gauge needle. If the needle continues to rise, this is an
indication that a leak exists in the unit or the connect-
ing line. The leak must then be located and eliminated.
NOTE: If the vacuum pump is okay, and there are no
leaks between V-1 and V-3, the micron gauge should
show less than 500 microns. If not, locate and correct
the problem.
5.
With the pump still operating, open valve V-3. If the
micron reading does not return to a level of less than
500 microns, locate and correct the problem before
continuing.
6.
With the vacuum pump still operating, open valve V-4.
The micron level will rise momentarily. If the micron
reading does not return to a level of less than
500 microns, locate and correct the problem before
continuing.
MOISTURE
Should the needle show a pressure rise but finally
level off to practically a constant mark, this is an indi-
cation that the system is vacuum tight but is still too
wet, requiring additional dehydration and pumping
time.
Summary of Contents for KD-II SR
Page 4: ......
Page 8: ......
Page 13: ...Safety Precautions Rev 04 03 v AEA40...
Page 14: ...Safety Precautions Rev 04 03 vi AEA38...
Page 33: ...Unit Description Rev 04 03 19 1 Evaporator 2 Access Door Rear View Curbside KD II SR 1 2 AEA38...
Page 37: ...Unit Description Rev 04 03 23 Power Receptacle Box KD II SR 50 AEA42...
Page 58: ...Remote Control Panel Features Rev 04 03 44...
Page 112: ...Refrigeration Maintenance Rev 04 03 98...
Page 120: ...106...
Page 146: ...132...
Page 156: ...142...
Page 162: ...148...
Page 170: ...156...
Page 172: ...158...
Page 173: ...159 KD II 30 Schematic Diagram Page 1 of 2...
Page 174: ...160 KD II 30 Schematic Diagram Page 2 of 2...
Page 175: ...161 KD II 30 Wiring Diagram Page 1 of 2...
Page 176: ...162 KD II 30 Wiring Diagram Page 2 of 2...
Page 177: ...163 KD II 50 Schematic Diagram Page 1 of 2...
Page 178: ...164 KD II 50 Schematic Diagram Page 2 of 2...
Page 179: ...165 KD II 50 Wiring Diagram Page 1 of 2...
Page 180: ...166 KD II 50 Wiring Diagram Page 2 of 2...
Page 181: ...167 KD II 50 SR 230 1 60 Wiring Diagram Page 1 of 2...
Page 182: ...168 KD II 50 SR 230 1 60 Wiring Diagram Page 2 of 2...