Space Sensors; Connect Thermostat; Configure The Unit For Thermostat Mode - Carrier 50HCQ Installation Instructions Manual

Space Sensors —
The PremierLinkt controller is factory−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 PremierLink
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. 41 − T−55 Space Temperature Sensor Wiring
Connect T−55: See Fig. 41 for typical T−55 internal
connections. Connect the T−55 SEN terminals to TB1
terminals 1 and 3 (see Fig. 42).
SEN
SEN
Fig. 42 − PremierLink Controller T−55 Sensor
Connect T−56: See Fig. 43 for T−56 internal connections.
Install a jumper between SEN and SET terminals as
illustrated. Connect T−56 terminals to TB1 terminals 1, 3
and 5 (see Fig. 44).
1 2 4 5 6
3
WHT(GND)
SEN SET
SW1
BRN (GND)
BLU (SPT)
Cool Warm
Fig. 43 − T−56 Internal Connections
RED(+)
CCN COM
BLK(-)
SENSOR WIRING
C08201
TB1 PL
1 J6-7
J6-6
3
C08212
RED(+)
CCN COM
BLK(-)
BLK
(T56)
SENSOR WIRING
JUMPER
TERMINALS
AS SHOWN
C08202
SEN
SEN
Jumper
SET
SET
Fig. 44 − PremierLink Controller T−56 Sensor
Connect Thermostat —
A 7−wire thermostat connection requires a 24−v power
source and a common connection. 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 TB1 as shown in Fig. 45.
If the 50HCQ unit is equipped with factory−installed
smoke detector(s), disconnect the factory BLU lead at
TB1−6 (Y2) before connecting the thermostat. Identify the
BLU lead originating at CTB−DDC−1; disconnect at
TB1−6 and tape off. Confirm that the second BLU lead at
TB1−6 remains connected to PremierLink J4−8.
SPACE
THERMOSTAT
THERMOSTAT
R
G
Y1
Y2
W1
W2
C
Fig. 45 − Space Thermostat Connections
If the 50HCQ unit has an economizer system and
free−cooling operation is required, a sensor representing
Return Air Temperature
(field−supplied and installed). This sensor may be a T−55
Space Sensor (see Fig. 41) installed in the space or in the
return duct, or it may be sensor P/N 33ZCSENSAT,
installed in the return duct. Connect this sensor to TB1−1
and TB1−3 per Fig. 42.
Configure the Unit for Thermostat Mode —
Connect to the CCN bus using a CCN service tool and
navigate to PremierLink Configuration screen for Operating
Mode. Default setting is Sensor Mode (value 1). Change the
value to 0 to reconfigure the controller for Thermostat Mode.
When the PremierLink controller is configured for
Thermostat Mode, these functions are not available: Fire
Shutdown (FSD), Remote
Compressor Safety (CMPSAFE), Supply Fan Status
(SFS), and Filter Pressure Switch (FILTER).
30
TB1 PL
1
J6-7
PL
TB1
J6-6
3
5 J6-5
C08213
CTB
R
TB1
PL
2 J4-12
J4-10
4
J4-8
6
J4-6
8
J4-4
10
CTB
C
THERMOSTAT
C08119
must also be connected
Occupied (RMTOCC),