Honeywell RTH1100 series User manual

RTH1100
Non-Programmable Thermostat
Quick Installation Guide
69-2446EF-01

69-2446EF—01 ii
Quick Installation Guide
Identify System Type
This thermostat is compatible with the following systems:
Gas, oil or electric furnace•
Central air conditioner•
Hot water system with or without pump•
Millivolt system•
Central heating and cooling system•
Gas fireplace•
Do you need assistance?
We are here to help.
Call 1-800-468-1502.
This thermostat works on 24-volt or 750-mV systems.
It will NOT work on heat pump systems, multistage
systems or 120/240-volt systems.

1 69-2446EF—01
RT H110 0
1Turn Off Power to Heating/
Cooling System
M28097

69-2446EF—01 2
Quick Installation Guide
M28099
Old thermostat
Cover
Remove old thermostat but leave wallplate with
wires attached.
Remove Old Thermostat
Leave wallplate
in place
MERCURY NOTICE
Do not put your old thermostat
in the trash if it contains
mercury in a sealed tube.
Contact your local waste
management authority for
instructions regarding recycling
and proper disposal.
2

3 69-2446EF—01
RT H110 0
If any wires are not attached to your old thermostat or are
attached to a terminal marked Cor C1, they will not be
connected to your new thermostat. Wrap the bare metal
end of each of these wires with electrical tape, so it can-
not touch and short other wires.
Identify Wires
M29988
Disconnect wires and remove the old wallplate only after
all wires are labeled. Wrap the wires around a pencil to
prevent them from falling though the wall opening.
Do not use non-connected
wires.
Do not use C or C1 wires.
Identify and label each wire.
IGNORE WIRE COLORS:
Use terminal screw
designations to identify
wires.
3

69-2446EF—01 4
Quick Installation Guide
Mount the new wallplate using the included screws
and anchors.
Separate Wallplate from New
Thermostat
M29989
Remove cover1. plate.
Loosen screw2. (the screw
remains captive
on wallplate).
Revove3. thermostat.
4

5 69-2446EF—01
RT H110 0
Mark and drill appropriate mounting holes.1.
Insert Plastic anchors.2.
Pass wires through opening of wallplate and secure3. wallplate to the wall using provided screws.
Mount Wallplate
M29989
5

69-2446EF—01 6
Quick Installation Guide
Match each labeled wire with the terminal having the1. same letter.
Connect Wires (typical wiring)
Rh Rc W Y G
M29990
Remove jumper if
you have both R
and Rc wires.
Loosen the terminal screws using a screwdriver, insert2. the wires, then lighten the screws.
Push any excess wire back into the wall opening.3.
Labels don’t match?
If a wire does not match any terminal designation, see next page.
6

7 69-2446EF—01
RT H110 0
If labeled wire does not match any terminal designation, see
diagram below.
Connect Wires (alternate wiring)
6
Rh Rc W Y G
M29991
Do not use C, X or B. Wrap bare end of wire with
electrical tape.
If wires are connected to both Rh and Rc terminals,
remove jumper (see previous page).

69-2446EF—01 8
Quick Installation Guide
Set jumper, on the back of the thermostat, if you have
connected a wire to the G terminal.
Set Heating Fan Control
7
HG Leave the jumper
in this factory-set
position if you
have a gas or oil
furnace.
HE Place the jumper
to this position if
you have an elec-
tric furnace.
M29992
Jumper
Incorrect jumper setting: An incorrect setting is notice-
able 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.