RefPlus Guardian+ RC-A, Programming Manual, Page: 18 / 34

18
R
PumpON when CD is : A minimum cooling demand can be set to prevent the pump from cycling. The pump will only start if
there is a demand from the unit (cooler or condenser) and if the minimum cooling demand (PumpON when CD) has been
reached. The pump will stop if the demand from the unit no longer exists or if the cooling demand drops to 0%. Refer to the
Operation Principle on page 5 for more information on the cooling demand.
16. Press
.
17. Use to set the minimum cooling demand ( PumpON when CD ).
18. Press .
19. Use to set the OutTempLW .
20. Press .
21. Use to set the
OutTempLW band
.
22. Press .
23. Use to set the OutTempLW Mode , then press
to confirm.
Refer to the Operation Principle on page 6 for more information regarding parameters OutTempLW, OutTempLW
band and OutTempLW Mode.
24. Press .
If system is set to Pulsing Valve and Ladder, continue to step 28.
If system is set to Modulating Pump, continue to step 32.
If system is set to Pulsing Valve and Scaler, the display will read:
SYSTEM SPECS (SCALER)
Demand:
0%
020%
040%
060%
080%
100%
LOT HOT PER
006-010/060s
006-010/060s
0 1 7 -022/060s
028-034/060s
039-047/060s
050-060/060s
25. Press and use
to adjust these parameters as desired. Refer to the Operation Principle on page 6 for
more information on the Scaler method.
26. Press
until the cursor is back at the upper left corner of the screen. Press
, the display will read:
Pulse
008/060s
008/060s
020/060s
031/060s
043/060s
055/060s
SYSTEM SPECS (SCALER)
Demand:
0%
020%
040%
060%
080%
100%
No parameters can be modified here. It shows the resulting pulse lengths according to the cooling demand percentages that
were set in step 25 as well as according to parameters OutTempLW , OutTempLW band and OutTempLW Mode .
27. Continue to step 35.