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SCW-410-QS (05/12)
Page 24
Figure 17. Primary Circuit with Compressor Unit Heat Exchanger
Final charging is done in the COOL mode as follows, with the charging set up described in
Figure 18:
1. Continue measuring the refrigerant charge weight as shown in Figure 18.
2. If the system is equipped with a domestic water module (DWM) or Desuperheater in
addition to the primary heating system, be sure the DWM switch is OFF and all water
modules are purged of air.
3.
Be sure circulating water is to be maintained between 45°F and 65°F.
4. Close the HP valve.
Then turn the system on in the COOL mode
.
The charging
process is detailed in the flow chart illustrated in Figure 21.
When complete,
return to step 8 below.
5. Initiate final charging by opening the refrigerant container valve and the gage manifold
LP valve to allow liquid refrigerant to enter the system
SLOWLY
. The ACC will not
allow liquid refrigerant to enter the compressor.
6. Continue to add liquid refrigerant to the system until the bubbles disappear from the
in-line sight glass and
the flow becomes clear, indicating full liquid flow
.
7. When the liquid flow in the sight glass becomes clear, turn off the refrigerant container
valve. Charging is complete.
8. Document the total weight of refrigerant charge in the system. The system is now
ready for adjustment of the TXV.
Summary of Contents for SCW Series
Page 8: ...SCW 410 QS 05 12 Page 8...
Page 9: ...SCW 410 QS 05 12 Page 9 Figure 5 SCW Connections for R 410A...
Page 10: ...SCW 410 QS 05 12 Page 10 Figure 6 SCW Internal Flow Schematic...
Page 11: ...SCW 410 QS 05 12 Page 11 Figure 7 SCW Piping...
Page 15: ...SCW 410 QS 05 12 Page 15 Figure 10 SCW Electrical Ladder Diagram 230 1 60...
Page 16: ...SCW 410 QS 05 12 Page 16 Figure 11 SCW Electrical Schematic 230 1 60...
Page 17: ...SCW 410 QS 05 12 Page 17 Figure 12 SCW Series 230 3 60 Electrical Ladder Diagram...
Page 18: ...SCW 410 QS 05 12 Page 18 Figure 13 SCW Series 230 3 60 Electrical Schematic...
Page 19: ...SCW 410 QS 05 12 Page 19 Figure 14 Part 1 of 2 SCW Field Wiring Diagram Reference Figure 8...
Page 20: ...SCW 410 QS 05 12 Page 20 Figure 14 Part 2 of 2 SCW Field Wiring Diagram Reference Figure 9...
Page 28: ...SCW 410 QS 05 12 Page 28 Figure 21 Charging and Superheat Adjustment Process...