Carrier 50HCQ - Page 29

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Table 10 – 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
R
(communication bus) RH - Relative Humidity
G - Thermostat Fan W1 - Thermostat Heat Stage 1
IAQ - Indoor Air Quality (CO
2
) W2 - Thermostat Heat Stage 2
OAQ - Outdoor Air Quality (CO
2
) Y1 - Thermostat Cool Stage 1
RAT - Return Air Temperature Y2 - Thermostat Cool Stage 2
50HCQ