Honeywell RTH6300B User manual

RTH6300B
Programmable Thermostat
Installation
Guide

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Installation tips................................2
Pre-installation checklist ................3
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Remove old thermostat ..................5
Identify and label wires ..................6
NNeewwtthheerrmmoossttaattiinnssttaallllaattiioonn
Wallplate mounting ........................9
Wire connections..........................12
Battery installation ........................14
Thermostat mounting ..................15
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How to change settings ................16
Set system type ............................17
Set changeover valve ....................18
Set heating fan control..................19
Set heating cycle rate....................20
Set temperature display ....................21
AAppppeennddiicceess
In case of difficulty ......................22
Customer assistance......................25
Replacement parts ........................25
Limited 1-year warranty ................26
RTH6300B Programmable Thermostat
1
Table of contents
® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.
Need Help?
For assistance with this product please visit www.honeywell.com/yourhome
or call Honeywell Customer Care toll-free at 1-800-468-1502
Read and save these instructions
MERCURY NOTICE: Do not place 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.

GGeettttiinnggssttaarrtteedd
Installation tips................................2
Pre-installation checklist ................3
OOllddtthheerrmmoossttaattrreemmoovvaall
Remove old thermostat ..................5
Identify and label wires ..................6
NNeewwtthheerrmmoossttaattiinnssttaallllaattiioonn
Wallplate mounting ........................9
Wire connections..........................12
Battery installation ........................14
Thermostat mounting ..................15
SSyysstteemmsseettuupp
How to change settings ................16
Set system type ............................17
Set changeover valve ....................18
Set heating fan control..................19
Set heating cycle rate....................20
Set temperature display ....................21
AAppppeennddiicceess
In case of difficulty ......................22
Customer assistance......................25
Replacement parts ........................25
Limited 1-year warranty ................26
RTH6300B Programmable Thermostat
1
Table of contents
® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.
Need Help?
For assistance with this product please visit www.honeywell.com/yourhome
or call Honeywell Customer Care toll-free at 1-800-468-1502
Read and save these instructions
MERCURY NOTICE: Do not place 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.

RTH6300B Programmable Thermostat
3
Installation Guide
2
Installation is easy — even if you’ve never done it before!
Your new thermostat has been designed for fast, easy installation. Just follow the
simple, step-by-step instructions in the following pages.
Install in three simple steps
• Label wires and remove your old thermostat (see pages 5-8).
• Install and wire your new thermostat (see pages 9-15).
• Set your new thermostat to match your heating/cooling system
(see pages 16-21).
Installation tips
• Have everything you need ready to go before you begin (see pages 3-4).
• Do not use wire color as a guide. Use wire labels instead (see page 8).
Pre-installation checklist
Check to make sure your package includes the following items:
Caution card Wire labels
Operating manual
Wall anchors and
mounting screws
(2 each)
RTH6300B thermostat
(wallplate attached to back)
Quick
reference
card

RTH6300B Programmable Thermostat
3
Installation Guide
2
Installation is easy — even if you’ve never done it before!
Your new thermostat has been designed for fast, easy installation. Just follow the
simple, step-by-step instructions in the following pages.
Install in three simple steps
• Label wires and remove your old thermostat (see pages 5-8).
• Install and wire your new thermostat (see pages 9-15).
• Set your new thermostat to match your heating/cooling system
(see pages 16-21).
Installation tips
• Have everything you need ready to go before you begin (see pages 3-4).
• Do not use wire color as a guide. Use wire labels instead (see page 8).
Pre-installation checklist
Check to make sure your package includes the following items:
Caution card Wire labels
Operating manual
Wall anchors and
mounting screws
(2 each)
RTH6300B thermostat
(wallplate attached to back)
Quick
reference
card

RTH6300B Programmable Thermostat
5
Installation Guide
4
Remove your old thermostatPre-installation checklist
Required tools & supplies
• No. 2 Phillips screwdriver
• Small pocket screwdriver
• Drill
• Drill bit (3/16” for drywall, 7/32” for plaster)
• Hammer
• Pencil
• Electrical tape
• Level (optional)
• Two fresh AA alkaline batteries
1TTuurrnnooffffppoowweerrat heating/cooling system (or fuse/circuit-breaker panel).
2 Remove cover and thermostat, but leave wallplate with wires attached.
Old thermostat
Leave wallplate in place Is there a sealed tube containing mercury?
If so, see inside front cover of this manual
for proper disposal instructions.
Cover

RTH6300B Programmable Thermostat
5
Installation Guide
4
Remove your old thermostatPre-installation checklist
Required tools & supplies
• No. 2 Phillips screwdriver
• Small pocket screwdriver
• Drill
• Drill bit (3/16” for drywall, 7/32” for plaster)
• Hammer
• Pencil
• Electrical tape
• Level (optional)
• Two fresh AA alkaline batteries
1TTuurrnnooffffppoowweerrat heating/cooling system (or fuse/circuit-breaker panel).
2 Remove cover and thermostat, but leave wallplate with wires attached.
Old thermostat
Leave wallplate in place Is there a sealed tube containing mercury?
If so, see inside front cover of this manual
for proper disposal instructions.
Cover

RTH6300B Programmable Thermostat
7
Installation Guide
6
Did you purchase right thermostat? Count wires to check.
Count the number of wires coming out of the wall and attached to terminals in
your old thermostat. If any of them are attached to a terminal marked “C” or “C1”
do not count that wirein your total.
If the total (not counting C or C1) is 5 wires or less, proceed to the next page. If
you have 6 or more wires, your new thermostat may not be compatible with your
system. Stop installation and call 1-800-468-1502 for advice.
Do you have 6 or more wires? If so, stop now.
You may have purchased the wrong replace-
ment thermostat.
Identify wires you will not use
If any wires are not attached to terminals in your old thermostat, do not
connect them to your new thermostat.
If a wire is attached to a terminal marked “CC” or “CC11,” disconnect it.You will not
connect it to your new thermostat.
Wrap the bare metal ends of each unused wire with electrical tape, so it
cannot touch and short out other wires.
Do not use unconnected wires
Do not use Cor C1 wire

RTH6300B Programmable Thermostat
7
Installation Guide
6
Did you purchase right thermostat? Count wires to check.
Count the number of wires coming out of the wall and attached to terminals in
your old thermostat. If any of them are attached to a terminal marked “C” or “C1”
do not count that wirein your total.
If the total (not counting C or C1) is 5 wires or less, proceed to the next page. If
you have 6 or more wires, your new thermostat may not be compatible with your
system. Stop installation and call 1-800-468-1502 for advice.
Do you have 6 or more wires? If so, stop now.
You may have purchased the wrong replace-
ment thermostat.
Identify wires you will not use
If any wires are not attached to terminals in your old thermostat, do not
connect them to your new thermostat.
If a wire is attached to a terminal marked “CC” or “CC11,” disconnect it.You will not
connect it to your new thermostat.
Wrap the bare metal ends of each unused wire with electrical tape, so it
cannot touch and short out other wires.
Do not use unconnected wires
Do not use Cor C1 wire

RTH6300B Programmable Thermostat
9
Installation Guide
8
Label wires and remove old wallplate
Use a screwdriver to disconnect wires one by one.As you disconnect each wire,
wrap it with the label matching the letter on your old thermostat. (Adhesive labels
are supplied in your thermostat package.)
Remove the old wallplate only after all wires are labeled. Be careful not to let
loose wires fall into the wall opening.
Wrap supplied labels securely around each wire
Do not let wires fall into wall opening!
IGNORE WIRE COLORS: Use only letter designations
to identify wire types.
Insert quick reference card into slot in
back of thermostat.
Remove wallplate and install quick reference card
Wallplate Thermostat
Insert finger into wire hole and pull to
remove wallplate from new thermostat.

RTH6300B Programmable Thermostat
9
Installation Guide
8
Label wires and remove old wallplate
Use a screwdriver to disconnect wires one by one.As you disconnect each wire,
wrap it with the label matching the letter on your old thermostat. (Adhesive labels
are supplied in your thermostat package.)
Remove the old wallplate only after all wires are labeled. Be careful not to let
loose wires fall into the wall opening.
Wrap supplied labels securely around each wire
Do not let wires fall into wall opening!
IGNORE WIRE COLORS: Use only letter designations
to identify wire types.
Insert quick reference card into slot in
back of thermostat.
Remove wallplate and install quick reference card
Wallplate Thermostat
Insert finger into wire hole and pull to
remove wallplate from new thermostat.

RTH6300B Programmable Thermostat
11
Installation Guide
10
Mount wallplateMark wallplate mounting position
1Pull wires through wallplate 2Level wallplate if desired
(lay level across tabs)
1Drill holes at pencil-marked locations
3/16” holes for drywall
7/32” holes for plaster
2Use hammer to tap anchors
into holes until flush with wall
3Place wallplate over anchors
and insert screws. Check level
if desired, then tighten screws.
3Mark positions of
both screw holes

RTH6300B Programmable Thermostat
11
Installation Guide
10
Mount wallplateMark wallplate mounting position
1Pull wires through wallplate 2Level wallplate if desired
(lay level across tabs)
1Drill holes at pencil-marked locations
3/16” holes for drywall
7/32” holes for plaster
2Use hammer to tap anchors
into holes until flush with wall
3Place wallplate over anchors
and insert screws. Check level
if desired, then tighten screws.
3Mark positions of
both screw holes

RTH6300B Programmable Thermostat
13
Installation Guide
12
Connect wires (typical installation)
1Match each labeled wire
with same letter on terminal
2Use a screwdriver to
loosen screw terminals,
insert wires, then tighten
screws
3Push any excess wire back
into the wall opening.
Labels don’t match?
If labels do not match letters
on thermostat, see next page.
Remove metal jumper if you
have both “R” and “Rc” wires
Connect wires (less common wire designations)
If labels do not match letters on the thermo-
stat, check the chart at right and connect to
terminal as shown here (see notes, below).
If wires will be connected to both
Rand Rc terminals, remove
metal jumper (see page 12).
Do not connect both Oand Bif
you have a heat pump. Connect O
wire to O/B W. Wrap Bwire with
electrical tape and do not use.
Do not use C, X or B. Wrap bare
end of wire with electrical tape.

RTH6300B Programmable Thermostat
13
Installation Guide
12
Connect wires (typical installation)
1Match each labeled wire
with same letter on terminal
2Use a screwdriver to
loosen screw terminals,
insert wires, then tighten
screws
3Push any excess wire back
into the wall opening.
Labels don’t match?
If labels do not match letters
on thermostat, see next page.
Remove metal jumper if you
have both “R” and “Rc” wires
Connect wires (less common wire designations)
If labels do not match letters on the thermo-
stat, check the chart at right and connect to
terminal as shown here (see notes, below).
If wires will be connected to both
Rand Rc terminals, remove
metal jumper (see page 12).
Do not connect both Oand Bif
you have a heat pump. Connect O
wire to O/B W. Wrap Bwire with
electrical tape and do not use.
Do not use C, X or B. Wrap bare
end of wire with electrical tape.

RTH6300B Programmable Thermostat
15
Mount thermostat and restore electrical power
Installation Guide
14
Install batteries
Install two fresh AA alkaline
batteries in back of thermostat.
After installation, batteries can be
changed without removing the ther-
mostat from the wall (see Operating
Manual for more information).
Back of thermostat
1Align the 4 tabs on the wallplate
with corresponding slots on the
back of the thermostat, then
push gently until the thermostat
snaps into place.
2Restore electrical power at the
heating/cooling system, or at the
fuse/circuit-breaker panel. Thermostat
Wallplate
TIP: If wires interfere when you
try to mount the thermostat,
push excess wire back into the
wall opening.

RTH6300B Programmable Thermostat
15
Mount thermostat and restore electrical power
Installation Guide
14
Install batteries
Install two fresh AA alkaline
batteries in back of thermostat.
After installation, batteries can be
changed without removing the ther-
mostat from the wall (see Operating
Manual for more information).
Back of thermostat
1Align the 4 tabs on the wallplate
with corresponding slots on the
back of the thermostat, then
push gently until the thermostat
snaps into place.
2Restore electrical power at the
heating/cooling system, or at the
fuse/circuit-breaker panel. Thermostat
Wallplate
TIP: If wires interfere when you
try to mount the thermostat,
push excess wire back into the
wall opening.

10
NextDone
10
NextDone
RTH6300B Programmable Thermostat
17
Function 1: System type
Press the or button to select the type
of climate control system you have in your
home:
Press to change setting.
When correct setting is
selected, press NNEEXXTTto
display next function.
0Heating & cooling: Gas, oil or electric heating
with central air conditioning.
1Heat pump: Outside compressor provides both
heating and cooling.
2Heating only: Gas, oil or electric heating
without central air conditioning.
3Heating only with fan: Gas, oil or electric
heating without central air conditioning. (Use
this setting if you could turn the fan on and off
with a fan switch on your old thermostat.)
Installation Guide
16
System setup (set thermostat to match your system)
Next, you must set the thermostat to control the heating and cooling system in
your home. Press and hold the and
FFAANNbuttons to enter system setup.
To begin, press and hold the and
FFAANN
buttons until the display changes:
Function
number
Press or to change settings.
Press NNEEXXTTto advance to next function.
Press DDOONNEEto exit and save settings.
Setting

10
NextDone
10
NextDone
RTH6300B Programmable Thermostat
17
Function 1: System type
Press the or button to select the type
of climate control system you have in your
home:
Press to change setting.
When correct setting is
selected, press NNEEXXTTto
display next function.
0Heating & cooling: Gas, oil or electric heating
with central air conditioning.
1Heat pump: Outside compressor provides both
heating and cooling.
2Heating only: Gas, oil or electric heating
without central air conditioning.
3Heating only with fan: Gas, oil or electric
heating without central air conditioning. (Use
this setting if you could turn the fan on and off
with a fan switch on your old thermostat.)
Installation Guide
16
System setup (set thermostat to match your system)
Next, you must set the thermostat to control the heating and cooling system in
your home. Press and hold the and
FFAANNbuttons to enter system setup.
To begin, press and hold the and
FFAANN
buttons until the display changes:
Function
number
Press or to change settings.
Press NNEEXXTTto advance to next function.
Press DDOONNEEto exit and save settings.
Setting

30
NextDone
20
NextDone
RTH6300B Programmable Thermostat
19
Installation Guide
18
Function 2: Heat pump changeover valve
Press the or button to select whether
your changeover valve is used in heating or
cooling:
Press to change setting.
When correct setting is
selected, press NNEEXXTTto
display next function.
0Cooling changeover valve: Use this setting if
you connected a wire labeled “O” to the O/B W
wire terminal (see page 13).
1Heating changeover valve: Use this setting if
you connected a wire labeled “B” to the O/B W
wire terminal (see page 13).
Function 3: Heating fan control
Press the or button to select your heat-
ing system and fan operation:
Press to change setting.
When correct setting is
selected, press NNEEXXTTto
display next function.
0Gas or oil heat: Use this setting if you have a
gas or oil heating system (system controls fan
operation).
1Electric heat: Use this setting if you have an
electric heating system (thermostat controls fan
operation).
Note: If Function 2 does not appear, please
turn to the next page to continue.
Note: If Function 3 does not appear, please
turn to the next page to continue.