Emerson 80 Series - Universal Models: Hydronic Wiring

80 Series Thermostats
43
Universal Models: Hydronic Wiring
• Hydronic Applications 3 Wire Zone Valves
– W/E terminal opens the hydronic valve identified as 4
on the valve
– O/B terminal closes the hydronic valve identified as 6
on the valve
– RH terminal is the hot side of the 24 VAC identified as
5 on the valve
• In Configuration Menu Option 20-reversing
valve selection-there is an option 3 for 3-wire
zone valve configuration
Universal 2 Heat / 2 Cool
Furnace 2
Stage
A/C 2 Stage
RC RH O/B G Y Y2 W/E W2 C L
Power for
Cooling
Power for
Heating
Reversing
Valve
Fan
Relay
1
st
stage
comp.
2
nd
stage
comp.
1
st
Stage
Heat Gas
2
nd
Stage
Heat
Gas
Common
wire for
24C
Heat Pump
Malfunction
Diagnostics
Terminal
(input signal
requires
common)
Heat Pump
w/ 2 stages
Aux or
(Dual Fuel)
1
st
Stage
Heat
(Aux)
2
nd
Stage
Heat
(Aux)
RC RH O/B G Y Y2 W/E W2 C L
TECH TIP: This configuration is designated
by #6 terminal on other thermostats.
W/E
RH
O/B