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Honeywell The Round T87N Easy-To-See Owner's Manual page 4

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T87N Easy-To-See
Fan operation settings
Fan operation settings:
F: For gas or oil heating systems, leave the
fan operation switch in this factory-set
position (for systems that control the fan
in a call for heat).
E: Change the switch to this setting for
heat pump or electric heat systems. (This
setting is for systems that allow the ther-
mostat to control the fan in a call for heat,
if a fan wire is connected to the G termi-
nal.)
Cycle rate settings
Thermostat mounting
Thermostat
69-1840EFS—07
• Owner's Manual
TM
Coverplate
and subbase
Heating System
Steam or gravity (1 CPH)
High efficiency warm air
(90%+), hot water, or
heat pump (3 CPH)
Gas or oil warm air
(factory setting) (5 CPH)
Electric warm air (9 CPH)
Align the slots on the base with tabs on the
thermostat, then push gently until the
thermostat snaps into place.
4
E
F
Move the cycle rate switches
to the proper setting for your
system (see table below).
Switch 1
On
Off
Off
On
Switch 2
On
On
Off
Off

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