Honeywell RTH1100 series User manual

RTH1100
Non-Programmable Thermostat
Quick Installation Guide
69-2446ES-01
This is a legacy product document
supported by Resideo. It is no
longer manufactured

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

69-2446ES—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 69-2446ES—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

69-2446ES—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).
Remove3. thermostat.
4

5 69-2446ES—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

69-2446ES—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 69-2446ES—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).

69-2446ES—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.

9 69-2446ES—01
RT H110 0
Pull out the battery cover.1.
Install two AA alkaline batteries.2.
Install Batteries
8
M29993
Reinstall the battery cover.3.

69-2446ES—01 10
Quick Installation Guide
Mount the thermostat1. on the wallplate.
Tighten the screw2. and install the cover
plate.
Install Thermostat onto Wallplate
9
M29994

11 69-2446ES—01
RT H110 0
Turn the power back on to the heating/cooling system.
Turn Power Back On
M28098
10

69-2446ES—01 12
Quick Installation Guide
If your system type is:
q Single Stage Standard Forced Air Heat and Cool
Congratulations, you’re done!
If your system type is:
q Hot Water Heat
q Steam or Gravity Heat
q High Efficiency Forced Air
Continue with advanced installation
on page 13 to match your thermostat to your sytem type.
If you are not sure of your system type or if you have other
questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems. It will NOT
work on multi-stage heating and cooling systems, multi-
stage heat pump systems, or 120/240 Volt systems.
If your system type is...
11

Advanced Installation
System setup......................................................................14
Temperature display...........................................................15
Heating cycle rate ..............................................................16
Troubleshooting..................................................................18
Customer assistance .........................................................20
Limited warranty.................................................................20

Advanced Installation Guide
69-2446ES—01 14
WIRINGASSISTANCETROUBLESHOOTING
Press and hold the s and tbuttons until the screen
changes (approximately 3 seconds).
System setup
M29995
M29996
Setting Press s or tto
change settings
Press both s and tto advance to next function

RT H110 0
15 69-2446ES—01
WIRING ASSISTANCE TROUBLESHOOTING
Press the s or tbutton to select Fahrenheit or
Celsius temperature display.
Temperature display
0Fahrenheit temperature display (°F)
1Celsius temperature display (°C)
When correct
setting is selected,
press both s and
t to display next
function.
M29996

Advanced Installation Guide
69-2446ES—01 16
WIRINGASSISTANCETROUBLESHOOTING
Heating cycle rate
Note: Make sure system switch is in the heat position.
Press the s or tbutton to select your heating
system and optimize its operation:
M29998
4Gas or oil furnace: Use this setting if you have a
standard gas or oil furnace that is less than 90% effi-
cient.
6Electric furnace: Use this setting if you have any type
of electric heating system.
3Hot water or high-efficiency furnace: Use this set-
ting if you have a hot water system or a gas furnace of
greater than 90% efficiency.
2Gas/oil steam or gravity system: Use this setting if
you have a steam or gravity heat system.
When correct set-
ting is selected,
move system
switch to the
cool position to
display next func-
tion.
M32044

RT H110 0
17 69-2446ES—01
WIRING ASSISTANCE TROUBLESHOOTING
Cooling cycle rate
Note: Make sure system switch is in the cool position.
Press the s or tbutton to select your cooling
system and optimize its operation:
4Use this setting if you have a Central Air
Conditioning or Heat Pump Compressor.
2, 3, 5, 6 Other options.
When correct setting
is selected, press
both s and t to
display next func-
tion.
M29999
M32044

Advanced Installation Guide
69-2446ES—01 18
WIRINGASSISTANCETROUBLESHOOTING
Troubleshooting
Display is blank Make sure fresh AA alkaline• batteries are correctly installed
(see page 9).
Temperature
settings do not
change
Make sure heating and cooling• temperatures are set to
acceptable ranges:
Heat: 40° to 90°F (4.5° to 32°C).•
Cool: 50° to 99°F (10° to 37°C).•
Fan does not
turn on when
heat is required
Check Heating Fan Control to• make sure it is set to match
your heating equipment (see
page 8).
If you have difficulty with your thermostat, please try
the following suggestions. Most problems can be cor-
rected quickly and easily.