White Rodgers UP400 Wiring diagram

UP400 Programmable Thermostat
Installation Instructions & User Guide
Congratulations on the purchase of your White-Rodgers™thermostat!
Save these instructions for future use!
Questions? Contact White-Rodgers
™
customer service at 1-877-654-9394
For Installation Help
1-877-654-9394
White-Rodgers.com
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© 2011 Printed in China
White-Rodgers
8100 West Florissant Avenue
St. Louis, MO 63136

11
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this product may replace a
product that contains mercury. Mercury and products containing mercury must
not be discarded in household trash. Do not touch any spilled mercury. Wearing
non-absorbent gloves, clean up any spilled mercury and place in a sealed
container. For proper disposal of a product containing mercury or a sealed
container of spilled mercury, place it in a suitable shipping container.
Refer to www.White-Rodgers.com for location to send product containing
mercury.
These symbols are used throughout this User Guide.
Watch for them to identify:
Cautions
Tips
Programmable Features
Part 1: Before Getting Started ...................................................... Page 2
1.1 Check package contents
1.2 Answer questions about source of heating in your home
1.3 Assemble tools
1.4 Turn off power to your heating and cooling system
Part 2: Remove Old Thermostat and Install New Thermostat .... Page 4
2.1 Expose wires connected to old thermostat
2.2 Label and disconnect the wires
2.3 Install new thermostat’s wallplate
2.4 Match and connect wires
2.5 Install batteries
2.6 Snap thermostat to the wallplate
Part 3: Quick Setup..................................................................... Page 13
3.1 Get to know your thermostat
3.2 Set fan and system mode
3.3 Select options
3.4 Turn on power to your heating and cooling system
3.5 Set time and date
3.6 Review pre-programmed schedule
Part 4: Additional Thermostat Features.................................... Page 18
4.1 Customize the pre-program schedule
4.2 Set favorite temperatures (home / sleep / away)
4.3 Set temporary hold at
4.4 Bypass the schedule (permanent hold)
4.5 Set vacation hold
4.6 Change batteries
4.7 Activate permanent auxiliary heat (for Heat Pumps only)
4.8 Set keypad lockout
4.9 Set change filter reminder
4.10 Set change humidifier pad reminder
4.11 Enable auto changeover
4.12 Adjust actual temperature display
4.13 Change faceplate color
Part 5: Troubleshooting Guide.................................................... Page 30
Appendix: Heat Pump Identification .......................................... Page 32
TABLE OF CONTENTS
• Failure to read and follow all instructions carefully before installing
or operating this control could cause personal injury and/or
property damage.
• The thermostat may stop controlling temperature and your house
may freeze or overheat when batteries are too low. Batteries must
be changed when appears on the display.

2 3
Part 1 Before Getting Started
1.1 Check package contents
Open the package and verify that the following items are included:
•Wallplate (A) thermostat (B) white cover (C)
•4 color inserts (D)
•Clear plastic cover (E)
•2 mounting screws and wall anchors (F)
•Wire Labels
•Installation Instructions and User Guide
Before getting started, please review the following
pre-installation checklist.
If any of the items shown above are missing from your package,
call White-Rodgers™customer service at 1-877-654-9394 before
returning the thermostat to your place of purchase.
✔Do you have either an oil or gas burning furnace?
✔Do you have a Heat Pump (and is it 1-stage or 2-stage)?*
✔Do you have Hydronic Heating (steam or hot water radiators or
radiant floor heating)?
You will need the following tools:
✔Flat-head screwdriver
✔2 AA alkaline batteries
You may also need:
✔Hammer
✔Drill with 3/16" (4 mm) bit
✔Small pliers to bend wires
Typically, this is achieved by flipping a switch on the outside of the
furnace/air handler to the “OFF” position.
1.2 Answer questions about source of
heating in your home
1.3 Assemble tools
1.4 Turn off power to your heating and
cooling system
*To determine if you have a Heat Pump and/or whether it is
a 1-stage or 2-stage model, see the Appendix on the last page of
the Manual.
Do not turn the system back on until you have
completed the installation and set up of the thermostat.
A
B
C
F
ED

4 5
C
AUX
GE
L
Y
W
RC
R
Part 2 Remove Old Thermostat and
Install New Thermostat
Do not disconnect wires from the old thermostat until you
label all the wires according to this manual.
2.1.1After turning off power to your heating & cooling system,
expose wallplate with wires and wire terminals. The required
steps vary depending on your old thermostat type.
2.1 Expose wires connected to
old thermostat
✔The Cover: This usually pulls off, but is sometimes secured by a
screw which must be loosened.
✔The Base: This either pulls off or needs to be removed by loosening
screws under the cover.
✔The Wallplate: This is removed by loosening the screws that hold
the thermostat to the wall.
Your old thermostat may consist of:
•3 parts: a cover, base and wallplate
or
•2 parts: a cover and wallplate
Wallplate
Wallplate
Base
Cover
Cover
3-Part unit
2-Part unit

6 7
✔ Ignore wire colors. There is no standard color code for
thermostat wires.
✔ Ignore existing wire labels, if they are present.
✔ Use the provided labels to label/re-label the thermostat wires.
✔ The new labels must remain on the wires at least until the
installation process is complete.
✔ No two wires can have the same label.
2.2.1 Note you may see two types of wiring in the old thermostat:
1. Wires leading from the wall to a
terminal on the thermostat
2. Wires connecting one terminal to
another (jumper wire).
These don’t have to be labeled.
2.2 Label and disconnect the wires
wall
C
wall
C
wall
2.1.2 Loosen all screws holding the old thermostat’s wallplate to
the wall.
Do not disconnect the wires from terminals. Allow
the wallplate to hang loosely on the wires.
Wall opening
Wallplate hanging on the wires

8 9
If the OLD thermostat’s
terminal is wired into the wall
and identified by this letter…
…Then label its wire with
this letter:
You’ll need this information further in the installation process!
2.2.2 Label each wire that comes out of the wall and attaches to
terminals on the old thermostat. Use labels provided with your
new thermostat.
1. Note the letter printed near each wired terminal
2. For each out-of-the-wall wire:
– find its terminal letter(s) in the left column of the table
on page 9,
– label the wire according to the right column of the table.
3. Make the following notes in the right column of the table
on page 9:
– Circle all your out-of-the-wall
labeled wires
– Pencil in any jumper wire
connecting 2 terminals
Mislabeling the wires could result in damage to your
heating and cooling unit.
Contact White-Rodgers™Customer Service at 1-877-654-9394 if your
old thermostat contains any wired terminals not listed in the table.
Note: No thermostat installation uses all of the wires shown
on page 9. In most cases, between 4 and 5 terminals are wired.
wall
C
wall
wall
RC
RH
G
RC, R
RH, 5, R5
W, 4, W1
W2, W-U
Y, Y1
Y2
O
L, F
X, C
B
wall
wall
wall
wall
wall
wall
wall
wall
wall
wall
wall
wall
G
wall
RC
wall
RH
wall
W
wall
W2
wall
Y
wall
Y2
wall
O
wall
L
wall
C
wall
B
wall
If terminal “O” is NOT wired.
If terminal “O” is wired.
C
2.2 Label and disconnect the wires (cont.)
Examples

10 11
W
W2
G
RH
RC
C
L
O
B
Y
Y2
2.2.3 After labeling all the wires, use a screwdriver to disconnect
each wire from its terminal. Remove the old thermostat.
Make sure that the wires don’t fall
into the wall after you detach them from
the old thermostat. You may choose to
tape them to the wall or tightly wind them
around a pencil or screwdriver.
2.3.1 Detach the new thermostat’s wallplate from the rest of the
thermostat and position the wallplate on the wall according to
the illustration below, passing the labeled wires through the
wire hole in the center of the wallplate.
2.3.2 With the wallplate flush against the wall, mark mounting holes
with a pencil.
2.3 Install new thermostat’s wallplate
2.4 Match and connect wires
Do not allow wires to touch each other or parts on
the thermostat. Doing so could result in damage to your heating and
cooling unit.
2.3.3 Move the wallplate aside. Drill the mounting holes using a 3/16"
drill bit. With a hammer, tap the wall anchors, provided in the
package, into the drilled holes.
2.3.4 Position the wallplate on the wall again and screw the mounting
screws into the wall anchors. Do not use a power screwdriver,
you may damage your thermostat.
2.4.1 Match each wire coming from the wall to its corresponding
terminal, as shown in the illustration below. Insert each wire into
the hole on the side of its matching terminal. Using a screwdriver,
tighten the screw securely. DO NOT REMOVE THE WIRE LABELS.
A maximum of one wire from the wall can be wired
into each terminal.
Wallplate
Mounting hole
2.4.2 In the new thermostat, a jumper wire
connects the RC and RH terminals.
If, in your OLD thermostat… Then…
Terminals RC and RH (or 5, or R5) …leave the jumper wire in place
were connected by a jumper wire, in the new thermostat.
There was a terminal R, which you then …leave the jumper wire in place
labeled RC according to 2.2.2, in the new thermostat.
Terminals RC and RH (or 5 or R5) …remove the jumper wire from the
were NOT connected by a jumper wire, new thermostat.
If you’re not sure whether terminals RC and RH were connected in your old
thermostat, refer to your notes made in section 2.2.2.
W
W2
G
RH
RC
C
L
O
B
Y
Y2
L
O
B
Y
Y2 C
RC
RH
G
W2
W
No thermostat installation uses all of the wires shown below.
In most cases, between 4 and 5 terminals are wired. The remaining
terminals will not be used.

12 13
Install 2 AA alkaline batteries (not included) into the battery
compartment at the top of the thermostat.
2.6 Snap thermostat to the wallplate
2.5 Install batteries
Do not restore power to the heating and cooling system
until instructed.
Part 3 Quick setup
3.1 Get to know your thermostat
System Switch
Cool - air-conditioning
Off - system turned off
Heat - heating
Aux Heat - (See part
4.7 of manual)
Auto - system will
automatically switch
between heating and
air-conditioning
Fan Switch
On - fan always on
Auto - fan runs only
when heating or
cooling is on
MENU access icon
Note: After a period of inactivity, the thermostat display goes to “sleep” where only the temperature and the
icons are visible. To “wake up” the display, press the icon.
Time & Date –
Displayed only in
Programmable mode
Actual
Temperature
Desired
Temperature
Favorite Temps for
Home/Sleep/Away
Battery level indicator Up & Down Arrows
1. Press the FAN icon to set it to AUTO.
2. Press the SYSTEM icon until you see COOL (to turn
on cooling), or until you see HEAT (to turn on heating).
3.2 Set fan and system mode

14 15
Options Default Setting Additional Information
1. Do you want the OFF Select default OFF for now.
keypad lock (no key lockup) To lock the keypad, see
turned on or off? Additional Functions
section 4.8.
2. Do you want to be ON Select default ON for now.
reminded when it (13 weeks) To modify a filter-change
is time to change reminder, see Additional
the air filter? Features section 4.9.
3. Do you want to be OFF Select default OFF for now.
reminded when it (no reminder) To set a pad-change
is time to change reminder, see Additional
the Humidifier Pad? Features section 4.10.
4. Do you want the ON Select default ON for
thermostat to work (programmable) Programmable Mode.
in Programmable Select OFF to operate in
Mode? Non-Programmable Mode.
It you select OFF, your thermostat will work as a
non-programmable unit. The clock and date will not be displayed.
Some functions, identified by in this manual, are available
only in Programmable Mode.
Options Default Setting Additional Information
5. Does either a gas GAS Select GAS if you have
or oil furnace (for either gas or either a gas or oil furnace.
provide heating to oil furnace) If you do not have a
your home? gas or oil furnace select ELE.
6. Do you have a OFF If you do not have a
Heat Pump? (no Heat Pump) Heat Pump select OFF.
If you have a Heat Pump,
use the to select (On1)
for a 1-stage, or (On2)
for a 2-stage Heat Pump
7. Do you want the FA (fast) Select SL (slow) if you
Cycle Rate to be have Hydronic (water or
Fast or Slow? steam) Heating.
Otherwise, select default FA.
8. Do you want to OFF (no Auto Select default OFF for
activate Auto Changeover) now. To set the function,
Changeover see Additional Functions
function? Section 4.11.
9. Do you want °F
temperature (Fahrenheit)
displayed in °C
(Celsius) or °F
(Fahrenheit)?
10. How much 0Select default 0for now.
displayed (no offset) To adjust the displayed
temperature offset temperature reading, see
do you want? Additional Functions
Section 4.12.
To determine if you have a Heat Pump and/or whether it is a
1-stage or 2-stage model, see the Appendix at the end of manual.
When you have answered all 10 questions, press the DONE icon twice.
Press the MENU icon and then press the MORE OPTIONS icon.
You will be prompted to answer 10 “Options” questions, shown below.
As each option is presented:
✔Use the to answer each question.
✔Use the MORE OPTIONSicon to advance to the next question.
3.3 Select options

16 17
To customize this schedule, continue to the next page (section 4.1).
3.4 Turn on power to your heating and
cooling system.
1. Press the MENU icon and then press the SET TIME icon.
2. Using the arrows, adjust the hour then press SET.
3. Adjust the minutes, and press SET.
4. Repeat the process to set the year, month and date. The day of the
week will automatically be set.
5. Press DONE when you are finished.
3.5 Set time and date
3.6 Review pre-programmed schedule
Congratulations!
You have completed the basic setup of
your new thermostat. It’s ready to use.
To read about additional thermostat features, continue to section 4.
Mon - Fri Sat - Sun
Period Start Time Temp Start Time Temp
Morning 6 am 70°F 6 am 62°F
Day 8 am 60°F 8 am 70°F
Evening 5 pm 70°F 5 pm 70°F
Night 10 pm 62°F 10 pm 62°F
Morning 6 am 78°F 6 am 82°F
Day 8 am 85°F 8 am 78°F
Evening 5 pm 78°F 5 pm 78°F
Night 10 pm 82°F 10 pm 82°F
HEATCOOL
The thermostat is set to control temperature according to the following
pre-programmed, energy-efficient schedule. If this schedule meets
your needs, no further action is required.

18 19
You can change the day, time period or temperature settings of the
pre-programmed schedule.
1. Press the SYSTEM icon to set to COOL (to program the cooling
schedule), or to HEAT (to program the heating schedule).
2. Press the MENU icon, then press SET SCHEDULE.
The screen will look like this:
3. The schedule for Monday (MON) is displayed.
• To modify the start time of the first time period
(Morning) on that day, use the to change the morning time
in 15-minute increments.
• To set the temperature for that time period, use the .
• When the time and temperature are set, press SET.
4. The next time period (Day) is now flashing. Program Day and then
Evening and Night Time Periods for Monday as you programmed
Morning in point 3.
6. Press the DAYicon to advance to the next day. Tuesday (TUE)
will be displayed at the top of the screen. Program the remaining
days individually as outlined on the previous page or use the Easy
Copy function.
7.
When you finish customizing the schedule, press the DONE icon twice.
Part 4 Additional thermostat features
5. To program subsequent days, use the Easy Copy function
OR move to step 6.
Easy Copy function
•You can copy one day’s schedule to other days of the week.
–
If the Copied Day is Monday, you can copy to the remaining
working days, all remaining six days, the weekend, or any
single day.
–
If the Copied Day is not Monday, you can copy to any other
single day.
•After programming a day you want to copy, press the COPY icon.
– The copied day will be displayed solid at the top of the screen.
– Next to it, the following day(s) will be flashing. To paste the
programmed schedule to the flashing day(s), press PASTE.
– To paste the copied schedule to a different day, press the
to advance through the days of the week.
– When your targeted day is flashing, press PASTE to paste
the schedule.
Advance to
next day
Temp
adjustment
Day(s) of
the week
Time
period
Period
start time
adjustment
4.1 Customize the pre-programmed
schedule

20 21
You can set your three most frequent temperatures (Home, Sleep, Away).
You can then select the settings anytime with one touch of an icon.
4.2.1 To set Home / Sleep / Away temperatures:
1. Press the MENU icon, then press
SET FAVORITES.
2. Toggle between HOME, SLEEP, and AWAY by pressing the
FAVORITE TEMPS icon. Select the one you want to customize.
3. Set the desired temperature for that Favorite using the . Press
SET to lock-in the desired temperature.
4. Repeat the process for the remaining two Favorites.
5. Press the DONE icon when finished.
6. You’ll need to set your favorites separately for cooling and heating.
For example, you might set “Away” to 88ºF in the summer and 55ºF
in the winter.
4.2.2 Using your Favorite Temps:
1. Press FAVORITE TEMPS icon in the upper right corner
of the screen to toggle between HOME, SLEEP, and AWAY.
2. By default, the Favorite temperature will automatically end at the
end of the current scheduled time period.
3. You can change the end time of the Favorite by using the until
the desired end time is displayed in the clock.
4. Cancel the Favorite by pressing the RUN SCHEDULE icon.
You can override a programmed temperature for a brief period of time.
1. Use the to raise or lower the setting. Temporary Hold At will be
displayed to the left of the desired temperature.
2. By default, the override will automatically cancel at the end of the
current scheduled time period (Morning, Day, etc.).
3. To adjust the end time of the override, use the until the desired
end time is displayed in the upper left corner of the screen.
4. Cancel the override by pressing the RUN SCHEDULE icon.
4.3 Set temporary hold at
In non-programmable mode, your favorite temperature will
remain until you change it by pressing or selecting another
Favorite Temperature.
4.2 Set favorite temperatures
(home / sleep / away)

22 23
You can override a preset temperature for up to 60 days.
1. Use the to set the desired temperature for Vacation Hold.
2. Press the Dayicon to switch to vacation hold mode.
3. Using the select the number of days for the vacation hold.
4. The vacation hold will automatically cancel
at 8:00 am on the final day (in this example on the 5th day)
5. Cancel the Vacation Hold by pressing RUN SCHEDULE icon.
The thermostat displays battery life in three stages:
•Battery full
•Battery half-full
•Battery one-third full – you need to replace
batteries with 2 new alkaline AA batteries
Use this function to bypass the Heat Pump and use ONLY auxiliary
heating. This may be a comfortable solution for the coldest days, but
it typically leads to higher energy costs.
To activate the Permanent Auxiliary Heat (also known as
“Emergency Heat”):
1. Press the SYSTEM icon until AUX HEAT is displayed.
2. Cancel the Permanent Aux Heat by selecting a different
mode from the SYSTEM menu.
4.5 Set vacation hold
4.6 Change batteries
When the batteries become only one-third full,
your thermostat will automatically reduce or increase the desired
temperature setting by 10 degrees to provide you with additional
warning. You can adjust the temperature back, but you need to
replace the batteries.
You can override the currently-programmed temperature indefinitely.
1. Use the to raise or lower the setting.
2. When the desired temperature is displayed in the upper right corner
of the screen, press the PERM HOLD icon at the bottom of the
screen. Hold At will flash to the left of the desired temperature.
3. The override will last until you cancel it. Cancel the override
by pressing the RUN SCHEDULE icon.
4.4 Bypass the schedule
(permanent hold)
4.7 Activate permanent auxiliary heat
(for Heat Pumps only)

24 25
The thermostat can display a reminder when it is time to change the air
filter on your heating and cooling unit.
4.9.1 To adjust Change Filter reminder settings:
1. Press the MENU icon, then press MORE OPTIONS twice to access
the CHANGE FILTER option.
2. Press SET, and use the to select the number of weeks until the
next Change Filter reminder.
3. When finished, press SET and then press DONE.
4. CHANGE FILTER and will blink when it is time to change
your filter.
4.9.2 To reset the change filter reminder, simultaneously press the
two blinking .
4.8.1 To activate:
1. Press the MENU icon, then press MORE OPTIONS.
2. Using the select ON, then press SET.
3. Enter a 3-digit PIN number into the thermostat. Select the first digit
by using the arrows, then use the to advance the
second and third digits of the PIN.
4. Make note of your PIN number, then press DONE.
5. The keypad is now in a locked mode and cannot be changed
without first entering the PIN.
4.8.2 To unlock the thermostat:
1. Press the MENU icon, then press MORE OPTIONS.
2. Enter the PIN number, then press DONE.
4.8 Set keypad lockout 4.9 Set change filter reminder

26 27
Use this if both heating and cooling may be required in the same day.
The thermostat will automatically change the system setting from
heating to cooling. For example: In the morning heating is required.
During the day, the temperature gets warmer and you want the air
conditioner to run.
1. Press the MENU icon, then press MORE OPTIONS.
2. Continue to press MORE OPTIONS until option #8 is displayed.
3. Using the change the setting to ON. Press DONE.
4. The SYSTEM settings will now include HEAT, COOL, AUTO,
AUXILIARY HEAT and OFF.
5. You can select AUTO (Auto Changeover) mode by toggling through
the SYSTEM settings list.
When using Auto Changeover, scheduled COOL temperature
should be set at least 2 degrees above scheduled HEAT temperature.
If you have a humidifier in your system, the thermostat can display a
reminder when it is time to change the humidifier pad.
4.10.1 To enable Humidifier Pad Reminder:
1. Press the MENU icon, then continue to press MORE OPTIONS
until you access the CHANGE HUMIDIFIER PAD option.
2. Using the select ON, then press SET.
3. Using the select the number of weeks until the next
Humidifier Pad reminder, then press the SET, then press DONE.
4. CHANGE HUMIDIFIER PAD and will blink when it is time
to change your humidifier pad.
4.10.2 To reset the change filter reminder, simultaneously press the
two blinking .
4.10 Set change humidifier pad reminder 4.11 Enable auto changeover

28 29
You can customize the look of the thermostat by changing the
faceplate color.
1. Remove the white faceplate. Insert a small screwdriver into each of
the 4 slots located on both sides of the thermostat, and pop up
the white cover in all 4 spots.
2. Select a color from the inserts provided in the package.
3. Put the clear cover on a flat surface face down.
4. Fit the selected insert onto the 4 tabs located on the inside of the
clear cover. Be sure the insert is properly aligned. Do not bend the
insert excessively.
5. Flatten/spread the insert gently with your fingers into the clear cover.
The insert should rest securely attached to the tabs, even if you
turn the cover upside-down.
6. Snap the faceplate (with the insert in it) onto the thermostat.
Make sure the cover tabs align with the installation slots in
the thermostat.
Your thermostat was accurately calibrated at the factory. However,
if you would like the displayed temperature to read higher or lower than
the actual temperature, you can adjust the displayed temperature
by +/- 4 degrees.
To adjust the actual temperature display:
1. Press the MENU icon, then press MORE OPTIONS.
2.
Continue to press the MORE OPTIONS icon until you reach option
#10.
3. Use the to adjust the displayed temperature; from
4:LO to 4:HI.
4. Press DONE.
1
2
Clear cover
Thermostat
Insert
Installation
Slots
Slots
Tabs
4.12 Adjust actual temperature display 4.13 Change faceplate color

30 31
Part 5 Troubleshooting Guide
Problem Possible Cause Action
Temperature set 2-minute lockout No action needed: should
point icon blinking enabled to protect stop blinking after
compressor 2 minutes
No Heat, No Cool, Blown fuse / Replace fuse or reset
or No Fan tripped circuit breaker
breaker
Furnace power Turn switch to ON
switch to OFF
Furnace blower Replace door panel
compartment door in proper position to
or panel loose or engage safety interlock
not properly or door switch
installed
Loose connection Tighten connections
to thermostat
or system
Low Batteries Replace batteries
Thermostat & The thermometer can be
Indoor adjusted +/- 4 degrees.
Thermometer See Temperature Display
Setting Disagree Adjustment in the
Configuration Menu section
No Display or Low Batteries Replace batteries
no Backlight
Problem Possible Cause Action
Thermostat AM or PM set Check the current
doesn’t follow the incorrectly in the settings including AM and
scheduled program program PM designations for
each time period
AM or PM set
incorrectly on the
thermostat’s clock
HEAT or COOL Part of normal No action required
icon flashing in operation;
Auto Changeover indicates Heating
mode or Cooling
operation
5 Troubleshooting Guide (continued)
Remember to turn off your heating / cooling
system BEFORE resetting your thermostat. You will then have to
go through a full initial setup described in Part 3 and Part 4 of the
manual before you can turn your Heating & Cooling system back on.
Failure to follow this instruction may lead to your Heating & Cooling
system damage or malfunction.
Reset Operation
If a voltage spike or static discharge blanks out the display or
causes erratic thermostat operation, you can reset the thermostat
by pressing all three (SYSTEM, and press both icons)
simultaneously for 2 seconds.
This reset will restore your thermostat’s initial factory setting.

32
Appendix: Heat Pump
Identification
1. How do I know if I have a Heat Pump?
2. How do I know if I should select On1 or On2 for my Heat Pump?
•Check the documentation for your heating and cooling system or
contact your HVAC contractor.
•Confirm that you have a Heat Pump by checking the labels of the
wires coming out from the wall (labels you attached according to the
right-hand column of the 2.2.2 table).
•The labeled thermostat wires coming out of the wall indicate whether
you have a 1-stage or 2-stage Heat Pump.
According to the right-hand column
of the 2.2.2 table, if you have:
According to the right-hand column
of the 2.2.2 table, if you have:
An “O” wire, or a “B” wire
One “Y” wire coming from the wall
One “Y” wire and one “Y2” wire
coming from the wall
You have:
You have:
A Heat Pump
1-stage Heat Pump, select On1
2-stage Heat Pump, select On2