SC-410-QS (05/11)
Page 25
System Start-up
Evacuation/Charging
1. SC, SD, SCW, HC, HCW, HW and HWW Models
Refer to Figure 20 and the following description:
a. Seal Test Evacuation and Initial Charge
1. Carefully vent the nitrogen charge from the compressor unit.
2. After installing and nitrogen brazing the HVAC system components and
compressor unit service valves, turn the service valves “OFF” and pressurize the
HVAC components to 150 psig with dry nitrogen and a trace of refrigerant. Valve
off the nitrogen tank from the HVAC system components and check joints with a
sensitive electronic leak detector to ensure they are sealed. Check the pressure
gage after 15 minutes and verify the original pressure has not decreased. Repair
the leaks and re-test as appropriate.
3. After venting the pressurized system, connect the gage block, refrigerant
container and hoses as shown in Figure 20. LP and HP valves are fully open.
Both service valves are fully opened.
4. As illustrated in Figure 20, connect a good quality digital micron gage to the liquid
line service valve access port. Connect a vacuum pump at least 6 CFM capacity
to the gage block.
5. Connect the refrigerant hose from the refrigerant container to the charging port.
Purge the charging hose of air, tighten the hose connection to the charging port
and close the valve on the refrigerant container.
Summary of Contents for SC Series
Page 7: ...SC 410 QS 05 11 Page 7...
Page 8: ...SC 410 QS 05 11 Page 8 Figure 5 SC Connections for R 410A...
Page 9: ...SC 410 QS 05 11 Page 9 Figure 6 SC Internal Flow Schematic...
Page 10: ...SC 410 QS 05 11 Page 10 Figure 7 SC Piping...
Page 11: ...SC 410 QS 05 11 Page 11 Figure 8a SC Air Heating and Cooling...
Page 15: ...SC 410 QS 05 11 Page 15 Figure 11 SC Electrical Ladder Diagram 230 1 60...
Page 16: ...SC 410 QS 05 11 Page 16 Figure 12 SC Electrical Schematic 230 1 60...
Page 17: ...SC 410 QS 05 11 Page 17 Figure 13 SC Series 230 3 60 Electrical Ladder Diagram...
Page 18: ...SC 410 QS 05 11 Page 18 Figure 14 SC Series 230 3 60 Electrical Schematic...
Page 19: ...SC 410 QS 05 11 Page 19 Figure 15 SC Series 460 3 60 Electrical Ladder Diagram...
Page 20: ...SC 410 QS 05 11 Page 20 Figure 16 SC Series 460 3 60 Electrical Schematic...
Page 21: ...SC 410 QS 05 11 Page 21 Figure 17 SC Series 575 3 60 Electrical Ladder Diagram...
Page 22: ...SC 410 QS 05 11 Page 22 Figure 18 SC Series 575 3 60 Electrical Schematic...
Page 23: ...SC 410 QS 05 11 Page 23 Figure 19 Part 1 of 2 SC Field Wiring Diagram...
Page 24: ...SC 410 QS 05 11 Page 24 Figure 19 Part 2 of 2 SC Field Wiring Diagram...
Page 35: ...SC 410 QS 05 11 Page 35 Figure 30 CAV Adjustment Process Flow Chart...