Honeywell 1000 Series, 2000 Series n, o p

Installation Guide

ENGLISH

NOTE: This setting is necessary only if the thermostat is connected to a heat pump.

The jumper is located on the back of the thermostat faceplate. Set it according to the type

of reversing (changeover) valve used by the heat pump.

•O (factory setting): The reversing valve is energized when the System switch is set to

Cool (cooling mode).

•B: The reversing valve is energized when the System switch is set to Heat (heating

mode).

Incorrect jumper setting: The heat pump operation will be reversed; i.e., it will cool in

Heat mode and will heat in Cool mode.

NOTE: This setting is not applicable if a fan is not connected to the G terminal.

A jumper, located on the back of the thermostat faceplate, determines how the fan operates

in Automatic mode. This jumper is not available on TH1100, TH1210D and TH2210D. On

these models, when the fan is placed in Automatic mode, it starts right away when there is

a call for heat or cool.

•HG (factory setting): Leave the jumper in this position for gas or oil heating systems. In this

position, the heating system controls the fan operation. When there is a call for heat, the fan

starts only when the air coming out of the vents is sufficiently warm. When there is a call for

cool, the fan starts right away.

•HE: Place the jumper to this position for heat pump or electric heating systems. In this

position, the thermostat activates the fan as soon as there is a call for heat or cool.

Incorrect jumper setting: An incorrect setting is noticeable in a gas or oil heating system.

When heating starts, you will initially feel cold air coming out of the vents as the fan is

running before the furnace has enough time to heat up the air.

If a 24-VAC common wire is connected to the C terminal, batteries are

optional and serve to provide backup power.

If a 24-VAC common wire is not connected to the C terminal, batteries

are necessary to power the thermostat.

Install 2 AAA batteries on the back of the thermostat faceplate as

shown.

nAlign the two brackets on the top of the thermostat with the

corresponding slots on the top of the wallplate.

oPush the faceplate against the wallplate.

pTighten the screw at the bottom of the thermostat.

400-626-000-D (69-1968EFS-03 TH1000D_TH2000D installation manual).book Page 4 Thursday, April 16, 2009 3:31 PM