Install Instructions

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Ultra Aire DEH 3000/R Installation Instructions Ultra-Aire.com | [phone]
WIRING
Dehumidifier Lock-Off or Lock-On
A/C Sensor Feature
Toautomaticallyactivateordeactivatethedehumidierwhentheair
conditioner runs.
Activate Dehumidication When the A/C is Running
(Figure 3)
A voltmeter is required for the next steps to ensure the correct wiring
fromtheA/CtransformerisusedtosetuptheLock-Ondehumidier
function.
1.ThecommonwirefromtheexistingA/Ctransformer(usuallyBlack)
mustbeattachedtothe“COM”sensorterminalbetween“ON-D”
and“OFF-D”ontheDEH3000/R.
TIP: The common wire can be identied as the wire from the A/C transformer that reads 0 volts between it and the
Yellow air conditioning call for cooling wire. The incorrect wire will give a 20 to 28 volt reading.
2.AnotherYellowwiremustbeaddedtothethermostatYellowterminalandruntothe“ON-D”sensorterminalon
the DEH 3000/R.
ON-D
COM
OFF-D
Deactivate Dehumidication When the A/C is Running (Figure 4)
A voltmeter is required for the next steps to ensure the correct wiring from the A/C transformer is used to set
uptheLock-Odehumidierfunction.
1. ThecommonwirefromtheexistingA/Ctransformer(usuallyBlack)mustbeattachedtothe“COM”sensor
terminalbetween“ON-D”and“OFF-D”ontheDEH3000/R.
TIP: The common wire can be identied as the wire from the A/C transformer that reads 0 volts between it and
the Yellow air conditioning call for cooling wire. The incorrect wire will give a 20 to 28 volt reading.
2.AnotherYellowwiremustbeaddedtothethermostatYellowterminalandruntothe“OFF-D”sensor
terminal on the DEH 3000/R.
Figure 3
DEH 3000
HVAC THERMOSTAT
ON-DETECT
COM
RED
GREEN
COMP
FAN
24VAC
A/C
UNIT
A/C
TRANSFORMER
COM
BLAC
K
YELLOW
YELLOW
BLAC
K
Figure 4
DEH 3000
HVAC THERMOSTAT
OFF-DETECT
COM
RED
GREEN
COMP
FAN
24VAC
A/C
UNIT
A/C
TRANSFORMER
COM
BLAC
K
YELLOW
YELLOW
BLAC
K