24V AC Transformer
to Power Dampers
120-130
25 41
33
40 50
45
115 125-145 5 25
15
TIME
HI
LO
BP
1
1
2
2
3
3
4
4
TR1
TR2
DPR 1
DPR 2
DPR 3
DPR 4
ON
OFF
LV
LV
Y2
G
W2
Y1
R
C
STAT 1
STAT 2
STAT 3
STAT 4
GE
W2
R Y G C
E R Y G C
}
Y2
G
W2
Y1
R
C
SENSOR
AIRFLOW
BYPASS
DAMPER
LAT
LAT
OAS-
OAS+
Y1
G
W1/OB
Y2
HP
FF
O/B
W1
OB
W1
R Y G C
R Y G C
R Y G C
R Y G C
R Y G C
R Y G C
ZONE 1
THERMOSTAT
ZONE 2
THERMOSTAT
ZONE 3
THERMOSTAT
ZONE 4
THERMOSTAT
Z
ONEX
DIGITRACT
MODEL: DT4U
ZONE
DAMPERS
1
2
3
4
W1
OB
W1
OB
W1
OB
W1
OB
W1
W1
W1
W1
DT4U - WIRING SCHEMATIC - GAS/ELECTRIC
DigiTract 4 Gas/Electric 2-Stage Heat/Cool
Use minimum 18 gauge for all wiring. All wiring must meet stat and local codes.
Do not connect Y2 or W2 for single stage heat/cool systems.
1
1
2
3
4
5
6
7
2
3
4
5
6
7
LAT
. Locate the leaving air sensor in the supply air stream, as far from the coil/heat exchanger as possible before the bypass
takeoff. Do not locate the LAT downstream of the bypass takeoff.
Connect W2 and Y2 of the DT4U output to unit only if there are two heat and/or two cool stages
Thermostats - Standard single stage heat/cool thermostats
Zone Damper Terminals
Install one independent 24V AC transformer, sized and fused for the total number of zone dampers (12VA per damper)
GE / HP - Configure jumper for Gas/Electric or Heat Pump operation
O/B - Configure reversing value if set up for Heat Pump operation
FF- Fossil Fuel Application
Adjustable potentiometers:
BP - To establish outside air temperature that locks out heat pump and energizes fossil fuel furnace (must us FOAS sensor)
HI - To establish HI cutout for furnace protection and staging temperatures
LO - To establish LO cutout, to protect freezing of coil, to set up staging for compressors
TIME - To establish changeover time when opposite calls will be recognized by controller
3