DKRCC.PS.RI.A1.02 / 520H4358 - Air Handling Seq. user manual - V 2.2
Produced by Danfoss Electronics spa Graphic Department, 10-2009
48
Danfoss Electronics spa
Air Handling seq.
- user manual
11.3.1| Cooling coil in dehumidification
COOLING COIL IN DEHUMIDIFICATION
HCT
Humidity Control
Min
Max
Default
U.M.
Text value
CCD
Cooling Coil
U08
Enable in dehumidification
1
3
YES
;NO;YES
U09
Control type in
dehumidification
1
3
NO
;MAX;DEW POINT;PROP
Tab 36_ [Humidity control - Cooling coil in degumidification]
If a dehumidification request will activate the cooling coil, depends on U08, cooling coil enable in dehumidification.
If U08 = NO then cooling coils are not activated regardless of the dehumidification request.
If U08 = YES, then cooling coil is activated in the following ways according to U09, Control type in
dehumidification.
If U09 = MAX, then cooling coil is activated at 100% when the dehumidification load demand is 100%.
Fig 42_ [Humidity control - Cooling coil in dehumidification 1]
If U09 =DEW POINT, when the dehumidification load demand is 100% then cooling coil is controlled using the
tC1 probe to reach the dew point setpoint (calculated on the basis of the cooling coil temperature setpoint and
maximum humidity setpoint DEH) .
If tC1 probe is not present, cooling coil is activated at 100% till there is request of dehumidification
Fig 43_ [Humidity control - Cooling coil in dehumidification 2]
