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SC-410-QS (05/11)
Page 34
6. There will be many bubbles in the sight glass as shown in Figure 28.
Figure 28. Initial Sight Glass Refrigerant Condition
7. After approximately 10 minutes, repeat step 5. Liquid must always be visible in the
Active Charge Control (ACC) but not allowed above the top sight glass for an
extended period of time.
8. Continue with this adjustment procedure repetitively until the refrigerant condition as
viewed in the in-line sight glass is such that bubbles have been reduced to a tiny
trickle, or many small bubbles, as shown in Figure 29. The suction temperature may
be greater than 35°F at final adjustment. If two hours have elapsed, many bubbles are
still present in the in-line sight glass and suction temperature is 35°F, the adjustment
is complete.
Figure 29. Final Sight Glass Refrigerant Condition
9.
After the in-line sight glass refrigerant condition appears as in Figure 29
, check
the liquid level in the ACC and verify that it is visible.
10. Effects of
adjusting the CAV clockwise
are as follows:
a. Reduces suction temperature
b. Lowers liquid level in the ACC
c. Reduces bubbles in in-line sight glass
11. The conditions for completion of the CAV adjustment are:
a. Suction temperature must be at 35°F or above.
b. Liquid level in the ACC must be visible
c. Bubbles in the in-line sight glass must be a “trickle” or “many small
bubbles.”
d. CAV adjustment must be made at a return air temperature of 70°F for a
direct expansion air handler (or a chilled water return temperature of 45°F to
50°F).
Содержание SC Series
Страница 7: ...SC 410 QS 05 11 Page 7...
Страница 8: ...SC 410 QS 05 11 Page 8 Figure 5 SC Connections for R 410A...
Страница 9: ...SC 410 QS 05 11 Page 9 Figure 6 SC Internal Flow Schematic...
Страница 10: ...SC 410 QS 05 11 Page 10 Figure 7 SC Piping...
Страница 11: ...SC 410 QS 05 11 Page 11 Figure 8a SC Air Heating and Cooling...
Страница 13: ...SC 410 QS 05 11 Page 13 Figure 9 SC Radiant Panel Hydronic Heating and Air Chilled Water Cooling...
Страница 15: ...SC 410 QS 05 11 Page 15 Figure 11 SC Electrical Ladder Diagram 230 1 60...
Страница 16: ...SC 410 QS 05 11 Page 16 Figure 12 SC Electrical Schematic 230 1 60...
Страница 17: ...SC 410 QS 05 11 Page 17 Figure 13 SC Series 230 3 60 Electrical Ladder Diagram...
Страница 18: ...SC 410 QS 05 11 Page 18 Figure 14 SC Series 230 3 60 Electrical Schematic...
Страница 19: ...SC 410 QS 05 11 Page 19 Figure 15 SC Series 460 3 60 Electrical Ladder Diagram...
Страница 20: ...SC 410 QS 05 11 Page 20 Figure 16 SC Series 460 3 60 Electrical Schematic...
Страница 21: ...SC 410 QS 05 11 Page 21 Figure 17 SC Series 575 3 60 Electrical Ladder Diagram...
Страница 22: ...SC 410 QS 05 11 Page 22 Figure 18 SC Series 575 3 60 Electrical Schematic...
Страница 23: ...SC 410 QS 05 11 Page 23 Figure 19 Part 1 of 2 SC Field Wiring Diagram...
Страница 24: ...SC 410 QS 05 11 Page 24 Figure 19 Part 2 of 2 SC Field Wiring Diagram...
Страница 32: ...SC 410 QS 05 11 Page 32 Figure 26 Correct Final Charge Level Figure 26a EarthLinked Performance Parameters...
Страница 35: ...SC 410 QS 05 11 Page 35 Figure 30 CAV Adjustment Process Flow Chart...