Terminal Identification And Electrical Ratings - Emerson 810-1600 Installation And Operation Manual

1.2. Terminal Identification and Electrical Ratings

Signal
Name
C 24AVAC Power Supply Common
R 24AVAC Power Supply
W1 Heat Stage 1, relay output
W2 Heat Stage 2, relay output
AUX Dehumidification, relay output
O/B Reversing Valve, relay output
Rc 24VAC Power Supply for Y1, Y2
Y1 Cool Stage 1, relay output
Y2 Cool Stage 2, relay output
ECO Economizer, relay output
G Fan Control, relay output
GND Reference for DC Signals
B+ RS-485 B+ Signal
A- RS-485 A- Signal
IN1 Remote 10K thermistor (Indoor)
IN2 Remote 10K thermistor (Outdoor)
IN3 Remote 10K thermistor (Supply)
IN4 Remote Humidity sensor (0-5V)
IN5 Fan proof input
GND Reference for DC Signals
Table 1-2 - Terminal Identification and Electrical Ratings
2 • Emerson Programmable Touchscreen Thermostat I&O Manual
Description Voltage
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
18-30VAC 50/60Hz
0-3.3VDC (10K NTC)
0-3.3VDC (10K NTC)
0-3.3VDC (10K NTC)
0-5VDC
0VDC or floating
Maximum Current
Rating
2.0A
2.0A
1.0A
1.0A
1.0A
1.0A
2.0A
1.0A
1.0A
1.0A
1.0A
026-1739 Rev 0