Therma-Stor Products Group Ultra-Aire DEH 3000R - Manual (Page 4)

2. Run the Yellow wire from the A/C unit to the COM terminal
on the DEH 3000R.
Energize the A/C central fan during dehumidification
To automatically run the A/C FAN when the dehumidifier runs.
1. Attach a second Green wire to the Green fan wire terminal
on the thermostat.
2. Connect the new Green wire to the COM terminal on the
DEH 3000R.
3. Run a wire from the Red terminal on the thermostat to the
NO (Normally Open) terminal on the DEH 3000R.
2.4 Dehumidifier lock-OFF or lock-ON:
A/C sensor feature
To automatically activate or deactivate the dehumidifier when
the air conditioner runs.
Activate dehumidification when the air-conditioner
is running
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-in
dehumidifier function.
1. The common wire from the existing A/C transformer (usually
Black) must be attached to the Yellow wire from the Ultra-Aire
dehumidifier.
TIP: The common wire can be identified 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 DET” sensor terminal on the
DEH 3000R.
Deactivate dehumidification when the
air-conditioner is running
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-out
dehumidifier function.
1. The common wire from the existing A/C transformer
(usually Black) must be attached to the Yellow wire from
the Ultra-Aire dehumidifier.
TIP: The common wire can be identified 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 DET” sensor terminal
on the DEH 3000R.
4
TO A/C
TO A/C
TO A/C
TO A/C
DEH 3000R Dehumidifier & Ventilation System Controller Installation, Operation & Service Manual
A/C
Unit
Red
Green
Yellow
A/C
Unit
Red
Green
Yellow
A/C
Unit
Red
Green
Yellow
A/C
Unit
Red
Green
Yellow