T7984C - Honeywell T7984 A Product Data

T7984 A,B,C ELECTRONIC MODULATING CONTROL THERMOSTATS

T7984C

Output 1 analog Output 2
2œ10V analog 2œ10V
Cooling and Heating only
Heating
WIRING
To install a remote duct or room temperature sensor, adust DIP
switch S6 to 0 = off and wire as shown.
To reverse operation of output 1 to heating, install the
changeover contact or the changeover sensor across
Duct
or
Room
NSB contact
from a central timer
SEQUENCE
SETPOINT DIAL DEFINITION
HEATING
SETPOINT
End
Device
100%
opened
10 Vdc
50%
0%
OUTPUT 2
ANALOG
DIP SWITCH SETTING
95C-10815–2
Mode input Changeover input
jumper
Remote
Changeover
sensor input
input for Out 1
(0 Vac)
Power supply
NSB input
(0 Vac)
Fig. 9. T7984C Wiring
SETPOINT
COOLING
CENTERED
SETPOINT
IN ZERO
ENERGY BAND
End
End
Device
Device
closed
closed
2 Vdc
2 Vdc
OUTPUT 1
ANALOG
ZERO ENERGY BAND
Temperature increase
Fig. 10. T7984C Sequence
SETPOINT DIAL DEFINITION
DEFINITION S3 S4
75°F OVERRIDE 1 1
HEATING DIAL 0
1
COOLING DIAL 1 0
CENTERED HC 0 0
ZERO ENERGY BAND
ZEB S2
5°F (3°C) 1
3°F (1.5°C) 0
Fig. 11. T7984C Dip Switch Setting
Day/Night
for Out 1 mode (NSB)
X
the screw terminals and wire as shown.
(If sensor is used, wire 1changeover sensor per
thermostat.)
Changeover
contact
Output 2
2-10 Vdc
Output 1
2-10 Vdc
24 Vac
End
End
Device
100%
Device
opened
opened
10 Vdc
10 Vdc
50%
0%
DAY/NIGHT SETBACK
HEAT SETBACK
10°F (5°C)
5°F (3°C)
REMOTE SENSOR
MAIN SENSOR
ON = 1
LOCAL INTERNAL
REMOTE SENSOR
OFF = 0 2 3 4 5 6
6
Remote sensor
option
X X
Changeover
OR
sensor
2-10 Vdc valve or VAV
analog actuator
Input (2-10 Vdc)
24 Vac
Common
24 Vac Transformer
SETPOINT DIAL DEFINITION
SETPOINT
HEATING
CENTERED
SETPOINT
End IN ZERO
Device ENERGY BAND
opened
10 Vdc
End
End
Device
Device
closed
closed
2 Vdc
2 Vdc
OUTPUT 2
OUTPUT 1
ANALOG
ANALOG
ZERO ENERGY BAND
Temperature increase
COOL SETUP S5
20°F (10°C)
1
5°F (3°C)
0
S6
1
0
75°F setpoint
limit
X
Input (2-10 Vdc)
24 Vac
Common
COOLING
SETPOINT