Carrier WeatherMaster 48HC14 Installation Instructions Manual page 49

SPACE SENSORS — The PremierLink™ controller is fac-
tory-shipped configured for Space Sensor Mode. A Carrier T-
55 or T-56 space sensor must be used. T-55 space temperature
sensor provides a signal of space temperature to the Premier-
Link controller. T-56 provides same space temperature signal
plus it allows for adjustment of space temperature setpoints
from the face of the sensor by the occupants.
1 2 3 4 5 6
WHT(GND)
SEN
SW1
BRN (GND)
BLU (SPT)
Fig. 65 — T-55 Space Temperature Sensor Wiring
Connect T-55 — See Fig. 65 for typical T-55 internal connec-
tions. Connect the T-55 SEN terminals to TB3 terminals 1 and
3 (see Fig. 66).
SEN
SEN
Fig. 66 — PremierLink Controller T-55 Sensor
Connect T-56 — See Fig. 67 for T-56 internal connections. In-
stall a jumper between SEN and SET terminals as illustrated.
Connect T-56 terminals to TB3 terminals 1, 3 and 5 (see
Fig. 68).
RED(+)
CCN COM
BLK(-)
SENSOR WIRING
TB3 PL
1
J6-7
J6-6
3
1 2
3 4
SEN
SW1
Cool
Fig. 67 — T-56 Internal Connections
SEN
SEN
JUMPER
SET
SET
Fig. 68 — PremierLink Controller T-56 Sensor
CONNECT THERMOSTAT — A 7-wire thermostat con-
nection requires a 24-v power source and a common connec-
tion. Use the R and C terminals on the CTB's THERMOSTAT
connection strip for these. Connect the thermostat's Y1, Y2,
W1, W2 and G terminals to PremierLink TB3 as shown in Fig.
69.
If the 48HC**14 unit is equipped with factory-installed
smoke detector(s), disconnect the factory BLU lead at TB3-6
(Y2) before connecting the thermostat. Identify the BLU lead
originating at CTB-DDC-1; disconnect at TB3-6 and tape off.
Confirm that the second BLU lead at TB3-6 remains connected
to PremierLink J4-8.
49
6
5 RED(+)
WHT(GND)
CCN COM
BLK(-)
SET
BLK
(T56)
BRN (GND)
SENSOR WIRING
BLU (SPT)
JUMPER
TERMINALS
AS SHOWN
Warm
TB3
1
TB3
3
5
PL
J6-7
PL
J6-6
J6-5