Carrier 50TC Series User Manual

28
Space Sensors —
The PremierLin kt 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.
2
3
45
61
SW1
SEN
BRN (GND)
BLU (SPT)
RED(+)
WHT(GND)
BLK(-)
CCN COM
SENSOR WIRING
C08201
Fig. 42 -- T--55 Space Temperature Sensor Wiring
Connect T-- 55: See Fig. 42 for typical T--55 inte rnal
connec tions. Connect the T--55 SEN terminals to TB1
terminals 1 and 3 (see Fig. 43).
SEN J6-7
J6-6
1
3
TB1 PL
SEN
C08212
Fig. 43 -- PremierLink Controller T--55 Sensor
Connect T-- 56: See Fig. 44 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. 45).
2
3
45
61
SW1
SEN
SET
Cool Warm
BRN (GND)
BLU (SPT)
RED(+)
WHT(GND)
BLK(-)
CCN COM
SENSOR WIRING
JUMPER
TERMINALS
AS SHOWN
BLK
(T56)
C08202
Fig. 44 -- T--56 Internal Connections
SEN J6-7
J6-6
1
3
TB1 PL
SEN
SET
Jumper
TB1
PL
J6-5
5
SET
C08213
Fig. 45 -- PremierLink Controller T--56 Sensor
Connect Thermostat —
A 7--wire t hermostat 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 the PremierLink controller at TB1 as
shown in Fig. 46.
If the 50TC 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
lea d originating at CTB--DDC--1; disconnect at TB1--6
and tape off. Confirm that the second BLU lead at TB1--6
remains connected to the PremierLink controller at J4--8.
GJ4-12
J4-10
J4-8
Y1
Y2
2
R
R
4
6
J4-6
J4-4
W2
C
8
10
C
SPACE
THERMOSTAT
PL
CTB
THERMOSTAT
W1
TB1
CTB
THERMOSTAT
C08119
Fig. 46 -- Space Thermostat Connections
If the 50TC unit has an economizer system and
free--cooling operation is required, a sensor representing
Return Air Temperature must also be connected
(field--supplied and installed). Thi s sensor may be a T--55
Space Sensor (see Fig. 42) installed in the space or in the
return duct, or it may be sensor PNO 33ZCSENSAT,
installed in the return duct. Connect this sensor to TB1--1
and TB1--3 per Fig. 43.
Configure the Unit for Thermostat Mode —
Connect to the CCN bus using a CCN service tool and
navigate to PremierLin k Configu ratio n screen for Operating
Mod e. Default setting is Sens or Mod e (value 1). Chang e the
value to 0 to reconfigure the controller for Thermostat Mode.
When the PremierLink controller is configured for
Therm ostat Mode, these functions are not available: Fire
Shutdown (FSD), Remote Occupied (RMTOCC),
Compressor Safety (CMPSAFE), Supply Fan Stat us
(SFS), and Filter Pressure Switch (FILTER).
50TC

Carrier 50TC Series Specifications

General

Brand	Carrier
Model	50TC Series
Category	Air Conditioner
Language	English