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40
Table 18 – Thermostat Mode
TB1 TERMINAL
FIELD CONNECTION
INPUT SIGNAL
1
RAT SEN
Analog (10k thermistor)
2
G
Discrete, 24VAC
3
RAT SEN
Analog (10k thermistor)
4
Y1
Discrete, 24VAC
5
6
Y2
Discrete, 24VAC
7
LOOP---PWR
Analog, 24VDC
8
W1
Discrete, 24VAC
9
IAQ---SEN
Analog, 4---20mA
10
W2
Discrete, 24VAC
11
IAQ---COM/OAQ---COM/RH---COM
Analog, 4---20mA
12
CCN + (RED)
Digital, 5VDC
13
OAQ---SEN/RH---SEN
Analog, 4---20mA
14
CCN Gnd (WHT)
Digital, 5VDC
15
AUX OUT (Power Exhaust)
(Output) Discrete 24VAC
16
CCN --- (BLK)
Digital, 5VDC
LEGEND:
CCN
---
Carrier Comfort Network (communication bus)
G
---
Thermostat Fan
IAQ
---
Indoor Air Quality (CO
2
)
OAQ
---
Outdoor Air Quality (CO
2
)
RAT
---
Return Air Temperature
RH
---
Relative Humidity
W1
---
Thermostat Heat Stage 1
W2
---
Thermostat Heat Stage 2
Y1
---
Thermostat Cool Stage 1
Y2
---
Thermostat Cool Stage 2
Connect T--56 — See Fig. 46 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. 47).
2
3
4
5
6
1
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. 46 -- T--56 Internal Connections
SEN
J6-7
J6-6
1
3
TB1
PL
SEN
SET
Jumper
TB1
PL
J6-5
5
SET
C08213
Fig. 47 -- PremierLink 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 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. 48.
G
J4-12
J4-10
J4-8
Y1
Y2
2
R
R
4
6
J4-6
J4-4
W2
C
8
10
C
SPACE
THERMOSTAT
PL
LCTB
THERMOSTAT
W1
TB1
LCTB
THERMOSTAT
C08119
Fig. 48 -- 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--supplied and installed). This sensor may be a T--55
Space Sensor (see Fig. 44) 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.
45. Temperature--resistance
characteristic is found in Table 15.
48TC
Summary of Contents for WeatherMaker 48TC*D08
Page 10: ...10 COOLING CHARGING CHARTS C08669 Fig 10 Cooling Charging Charts D08 48TC ...
Page 11: ...11 COOLING CHARGING CHARTS C08670 Fig 11 Cooling Charging Charts D12 48TC ...
Page 12: ...12 COOLING CHARGING CHARTS C09151 Fig 12 Cooling Charging Charts D14 Circuit A 48TC ...
Page 13: ...13 COOLING CHARGING CHARTS C09152 Fig 13 Cooling Charging Charts D14 Circuit B 48TC ...
Page 37: ...37 C08665 Fig 43 Typical PremierLinkt System Control Wiring Diagram 48TC ...
Page 45: ...45 C07129 Fig 60 RTU MP Multi Protocol Control Board 48TC ...
Page 46: ...46 C09163 Fig 61 Typical RTU MP System Control Wiring Diagram 48TC ...
Page 67: ...67 C09156 Fig 84 48TC Typical Unit Wiring Diagram Power D08 208 230 3 60 48TC ...
Page 68: ...68 C09157 Fig 85 48TC Typical Unit Wiring Diagram Control D08 208 230 3 60 48TC ...