Zonex DigiTract 4 Installation Manual page 5

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.
LAT
SENSOR
1
OAS+
OAS-
Y2 Y2
W1
W1
AIRFLOW
BYPASS
DAMPER G G
2
W2
W2
Y1
Y1
R
C
C
LAT. Locate the leaving air sensor in the supply air stream, as far from the coil/heat exchanger as possible before the bypass
1
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
2
Thermostats - Standard single stage heat/cool thermostats
3
Zone Damper Terminals
4
5 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
6
O/B - Configure reversing value if set up for Heat Pump operation
FF- Fossil Fuel Application
Adjustable potentiometers:
7
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
DT4U - WIRING SCHEMATIC - GAS/ELECTRIC
O/B
6
ON
OFF
LV
}
LAT
LV
Y1 G W1/OB
OB
R
STAT 1 STAT 2
E R Y G C R Y G C
W1 W1
OB OB
3
R Y G C W1 R Y G C
W1
ZONE 1 ZONE 2
THERMOSTAT THERMOSTAT
33 45
FF GE
7
25 41 40 50
BP LO
HP
Z
ONEX
W2
Y2
DIGITRACT
MODEL: DT4U
STAT 3 STAT 4
R Y G C
W1 W1
R Y G C
OB OB
W1 R Y G C
R Y G C
W1
ZONE 3 ZONE 4
THERMOSTAT THERMOSTAT
120-130 15
115 125-145 5 25
HI TIME
ZONE
DAMPERS
DPR 1
1
DPR 2
1
1
DPR 3
2
DPR 4
2
2
4
3
3
3
4
4
4
TR1
TR2
5
24V AC Transformer
to Power Dampers
3