80 Series Thermostats
40
Heat Pump Models - 2H/1C Wiring
•
Staging
–
Heat Pump thermostats call 1st stage compressor with a 2nd stage of auxiliary
•
Auxiliary Selection
–
Aux Heat as 2nd stage only with one wire to W2
–
Independent Auxiliary System Switch Selection (2 wires to W2 and E)
•
For separate W2 and E wires, clip the W2/E jumper located on the back of the thermostats.
•
Wire W2 & E separately so the compressor does not turn on when system switch is set to Aux
•
Dual Fuel is selected in the Installer’s Menu, Item 60
Heat Pump 2 Heat / 1 Cool
Heat Pump
Staged
R
O/B
G
Y
E
W2
C
L
Power
(24V)
Reversing
Valve
Fan
Relay
1
st
stage
compressor
2
nd
Stage
Heat
(Aux)
Common
wire for
24C
Heat Pump
Malfunction/
Diagnostics
Terminal
(input signal
requires
common)
Heat Pump
with
Separate
Aux or (Dual
Fuel)
Emer.
Heat
Only
R
O/B
G
Y
E
W2
C
L
Summary of Contents for 80 Series
Page 1: ...80 Series Thermostats 1 Emerson 80 Series Thermostats ...
Page 2: ...Business and Product Overview ...
Page 19: ...Technical ...
Page 32: ...Install ...
Page 35: ...80 Series Thermostats 35 Instruction Sheets 1F85U 42PR 1F85U 42NP 1F85U 22PR 1F85U 22NP ...
Page 44: ...80 Series Thermostats 44 Installer Configuration Menu ...