CARNES HXHAF 사용 설명서 및 참조 설명서 - 페이지 16

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Operation

Figure 10: Mode Selection Screen

Modes of Operation

The residential humidistat will run the humidifier when the duct/room humid-

ity level is below the humidity setpoint and any one of the following is true:

•

Heat signal from thermostat is on

•

Fan signal from thermostat is on

•

Fan signal from humidistat is on

When the humidistat receives an on signal it will control the humidifier to

maintain the desired humidity level by ON/OFF or modulating control. ON/

OFF control turns the humidifier on when the humidity level drops 10% below

setpoint and turns the humidifier off 10% above setpoint. Modulating control

sends a 010 VDC signal to the humidifier to proportionally control the steam

output of the humidifier.

When the humidifier output changes from ON to OFF, the humidistat

will keep the fan running for 90 seconds to prevent excess steam from

condensing in the duct.

There are four selectable modes the humidistat can operate in to provide the best

humidity control for any household. These modes can be selected in the humid-

istat MODE SELECTION screen (Figure 10) and determine how the humidistat

reacts to the fan and heat signals.

RESIDENTIAL HUMIDISTAT

Form 16763