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iCOM
Control Training and Service Manual
3 Stage Electric Reheat – With Dead Band
In the above example that the control band begins at the 70
°
F temperature set
point plus ½ of the programmed temperature proportional band value.
As the return air temperature decreases Reheat 1 is activated at 68.2
°
F or ½ of
the dead band value plus 33% of the heating control band. If the return air
temperature continues to decrease Reheat 2 will activate at 66.9
°
F or ½ of the
dead band value plus 66% of the heating control band. If the return air
temperature continues to decrease Reheat 3 will activate at 65.6
°
F or ½ of the
dead band value plus 100% of the heating control band.
When the return air temperature starts to increase, Reheat 3 is deactivated at
66.9
°
F or ½ of the dead band value plus 66% of the heating control band. Reheat
2 is deactivated at 68.2
°
F or ½ of the dead band value plus 33% of the heating
control band. Reheat 1 is deactivated at 69.5
°
F or ½ of the dead band value plus
0% of the heating control band.
Remember the temperature dead band value is used by the control to shift
the cooling on/off operations away from the temperature set point.
23
Содержание Liebert iCOM
Страница 1: ...Large Systems iCOM Microprocessor Environmental Training and Service Manual TM 10098 Rev 05 27 08 ...
Страница 2: ...iCOM Control Training and Service Manual iCOM Training Service Manual 1 ...
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Страница 20: ...iCOM Control Training and Service Manual Glycool at 50 Capacity No Dead Band 19 ...
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Страница 179: ...iCOM Controls Training and Service Manual Digital Scroll High Temperature Sensor Chart NTC Code S606 and S608 178 ...
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