80 Series Thermostats
28
This switch controls the main
blower sequence of operation
•
GAS
– equipment operates fan on a
call for heat
-
Typically for fossil fuel
furnaces
•
ELEC
– thermostat operates the fan
on a call for heat
-
Typically for heat pumps or
electric furnaces
Application Switches
Conventional Models
Gas / Elec Switch
Heat Pump & Conventional Models
O / B Switch
This switch controls the position
of the reversing valve
•
“O”
position – energizes RV in the
cooling mode
•
“B”
position – energizes the RV in
the heating mode
These switches are on the back of the thermostat and must be configured correctly for the application
.
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 ...