Honeywell T87N1000 Manual

A SERVICE OF

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T87N Easy-To-See

TM

• Owner's Manual

69-1840EFS—03 4

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thermostat

tocontrolthefaninacallforheat,ifafan

wireisconnectedtotheGterminal.)

Aligntheslotsonthebasewithtabsonthe

thermostat, then push gently until the

thermostat snaps into place.

E

F

Fan operation settings

Cycle rate settings

Thermostat mounting

Thermostat

Coverplate

andsubbase

Heating System Switch 1 Switch 2

Steamorgravity(1CPH) On On

Highefficiencywarmair Off On

(90%+),hotwater,or

heatpump(3CPH)

Gasoroilwarmair Off Off

(factorysetting)(5CPH)

Electricwarmair(9CPH) On Off

Move the cycle rate switches

tothepropersettingforyour

system(seetablebelow).