38
Table18 – Thermostat Mode
TB1 TERMINAL FIELD CONNECTION INPUT SIGNAL
1RATSEN Analog (10k thermistor)
2 G Discrete, 24VAC
3RATSEN Analog (10k thermistor)
4Y1 Discrete,24VA C
5
6Y2 Discrete,24VA C
7LOOP---PWR Analog,24VDC
8W1 Discrete,24VA C
9IA Q ---S E N An a l o g , 4 --- 20 m A
10 W2 Discrete,24VA C
11 IA Q --- CO M / O A Q ---C O M / R H ---C O M An a lo g , 4 ---2 0 m A
12 CCN + (RED) Digital,5VDC
13 OA Q --- SE N /R H --- S EN A na l og , 4 --- 2 0 mA
14 CCN Gnd (WHT) Digital,5VDC
15 AUXOUT (Power Exhaust) (Output) Discrete 24VAC
16 CCN ---(BLK) Digital, 5VDC
LEGEND:
CCN --- CarrierComfortNetwork (communicationbus)
G --- Th e r m o s t a t Fa n
IAQ --- IndoorAir Quality (CO2)
OAQ --- OutdoorAir Quality(CO2)
RAT --- ReturnAir Temperature
RH --- RelativeHumidity
W1 --- ThermostatHeatStage 1
W2 --- ThermostatHeatStage 2
Y1 --- ThermostatCool Stage 1
Y2 --- ThermostatCool Stage 2
Connect T--56 -- See Fig. 45 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 (seeFig. 46).
234561
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. 45 --T--56 Internal Connections
SEN J6-7
J6-6
1
3
TB1 PL
SEN
SET
Jumper
TB1 PL
J6-5
5
SET
C08213
Fig. 46 --PremierLink T--56 Sensor
Connect Thermostat — A 7--wire thermostat connection
requires a 24--vpower source and a common connection.
Usethe R and C terminals on the LCTB’s THERMOSTAT
connection strip for these. Connect the thermostat’s Y1,
Y2, W1, W2 and G terminals to PremierLink TB1 as
shown in Fig. 47.
G J4-12
J4-10
J4-8
Y1
Y2
2
RR
4
6
J4-6
J4-4
W2
C
8
10
C
SPACE
THERMOSTAT
PL
LCTB
THERMOSTAT
W1
TB1
LCTB
THERMOSTAT
C08119
Fig. 47 --Space Thermostat Connections
If the 48TC unit has an economizer system and
free--cooling operation is required, a sensor representing
Return Air Temperature must also be connected
(field--suppliedand installe d). This sensorm aybe a T --55
Space Sensor (see Fig. 43) installed in the space or in the
return duct, or it may be sensor PNO 33ZCSENSAT,
installed in the return duct. Connect thissensor to TB1--1
and TB1--3 per Fig. 44. Temperature--resistance
characteristic is found in Table 15.
Configure the unit for Thermostat Mode — Connect to the
CCN bus using a CCN service tool and navigate to
48TC