United Technologies Carrier WeatherMaker 50TC A08 Series, Installation Instructions Manual

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Table 21 — Thermostat Mode (50TC 08-14 Unit Sizes)
LEGEND
Table 22 — Thermostat Mode (50TC 16 Unit Size)
LEGEND
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
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
TB3 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
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