Danfoss MCX08M User Manual

DKRCC.PS.RI.A1.02 / 520H4358 - Air Handling Seq. user manual - V 2.2
Produced by Danfoss Electronics spa Graphic Department, 10-2009
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Danfoss Electronics spa
Air Handling seq. - user manual
11.4.1| Upper limit
Control of the upper limit for supply humidity prevents the onset of condensation in the supply ducts.
The function is enabled with HL5 and requires setting the upper limit HL2 beyond which the supply humidity must
not rise.
In the case of a modulating humidier, as the supply humidity reaches the upper limit HL2 decreased by band HL6,
the controller limits the output to the humidier in a manner proportional to the amount the supply temperature
diers from the setpoint limit. If the unit has an ON/OFF humidier, it is turned o directly by the upper limit and
reactivated after the dierential is reached.
Fig 46_ [Humidity control - Upper limit]
11.4.2| Lower limit
This function protects the environment and the people therein from the infeed of air that is too dry.
The function is enabled with HL3 and requires setting the lower limit HL1 beyond which the supply temperature
must not drop and the limit band HL4.
The behavior mirrors what follows for the upper supply limit.
Fig 47_ [Humidity control - Lower limit]

Danfoss MCX08M Specifications

General

Brand	Danfoss
Model	MCX08M
Category	Controller
Language	English