Carrier 33CS400-01 User Manual

OWNER’S

OWNER’S

MANUAL

MANUAL

COMMERCIALCOMMERCIAL

THERMOSTATTHERMOSTAT

33CS400-0133CS400-01

P/N P/N

DIGITAL

DIGITAL

THERMOSTAT

THERMOSTAT

NON-PROGRAMMABLE

NON-PROGRAMMABLE

HEAT
COOL

3 Configurable Outputs

3 Configurable Outputs

Control up to 3 Heat &

Control up to 3 Heat &

2 Cool Stages

2 Cool Stages
Backlit Display & Button
Legends
Aux Heat Indicator
Dry Contact Equipped
Set Point Limiting
Remote Sensor Ready
Outdoor Sensor Ready

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

HEAT
PUMP

&

Accepts the

Accepts the

Carrier Corporation 04/06

OPTIONAL

OPTIONAL

HUMIDITY MODULE

HUMIDITY MODULE

Pm

I2:00

Su

AUTO

Accepts EZ Programmer
Accepts Optional Humidity Module:
Controls Humidification,
Dehumidification and Reheat
Accepts Optional IR Remote Control

74

COOL

HEAT

72

CAUTION

Follow the Installation Instructions before proceeding.
Set the thermostat mode to “OFF” prior to changing
settings in setup or restoring Factory Defaults.

CAUTION

NEVER PUT MORE THAN ONE
JUMPER ON THE SAME MISC
JUMPER BLOCK!

THIS MAY DAMAGE YOUR
THERMOSTAT.

NOTE: Due to variations in environmental conditions, it is not
always possible to achieve the desired humidification or
dehumidification setpoint.

This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

Thermostat 33CS400-01

F

4Z95

FOR HOME OR OFFICE USE

Tested to Comply

c

with FCC Standards

C

MISC3

OK

MISC3

Page i

How to Use This ManualHow to Use This Manual

The Table of Contents divides the thermostat features into sections

The first page of each section contains a more detailed list of the

contents within that section, such as the example page shown below.

SECTION 14

Timers and DeadbandsTimers and Deadbands

making it easier to quickly find information.

Header shows section #

Section 14 Contents:

Adjusting the Heat/Cool

Differential..............................14.2

Adjusting the Cycles

Per Hour..................................14.3

Adjusting the Deadband..........14.4

Adjusting the Minutes of
Run-Time Before the

Next Stage...............................14.6

Selecting 2nd Stage Turn

Off Temperature.....................14.7

and title of section

Section contents

14

Visible section tab
on the side of the
page

Section and page #

Page 14.1

In addition, this manual also has an Index to help you find any information

regarding this thermostat quickly.

Page ii

Glossary of TermsGlossary of Terms

Auto-Changeover: A mode in which the thermostat will turn on
the heating or cooling based on room temperature demand.
Configurable Output Jumper: Using jumpers on the thermostat
you can configure the MISC1, MISC2, and MISC3 terminals to
control humidification, dehumidification, and 2nd stage cooling.
Cool Setpoint: The warmest temperature that the space should
rise to before cooling is turned on (without regards to
deadband).
Deadband: The number of degrees the thermostat will wait, once
setpoint has been reached, before energizing heating or cooling.

Dehumidify: To reduce the amount of moisture in the air.
Differential: The forced temperature difference between the
heat setpoint and the cool setpoint.
Heat Setpoint: The coolest temperature that the space should

drop to before heating is turned on (without regards to
deadband).

Humidify: To increase the amount of moisture in the air.
Icon: The word or symbol that appears on the thermostat

display.
Mode: The current operating condition of the thermostat (i.e. Off,
Heat, Cool, Auto).
Non-Programmable Thermostat: A thermostat that does not
have the capability of running the Time Period Programming.
Temperature Swing: Same as Deadband.

Page iii

Table of ContentsTable of Contents

Quick Start

Getting to Know Your
Thermostat

Basic Operation

Viewing Temperature
and Humidity Sensors

Override Operation

Programming the
Fan Operation
Thermostat Display
Options

Humidification

Dehumidification

Viewing Equipment
Run-Times
Electric Heat and
Heat Pump Operation

Timers and Deadbands

Programming Remote
Sensor Operation

Programming the Dry
Contact

Programming the Run­ Time Alerts
Configuring the MISC
Outputs

Factory Defaults,
Calibration, and Sensors

Accessories

Advanced Setup Table

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19

Page iv

SECTION 1

Quick StartQuick Start

1

Section 1 Contents:

Selecting the Heat or Cool

Mode............................................1.2

Selecting Your Desired

Temperature................................1.3

Using the Fan Button...................1.3

Note: Following the instructions in this section will allow you to

operate your thermostat using the factory default settings. These
settings are depicted in the illustrations throughout this manual.

Page 1.1

Selecting the Heat or Cool ModeSelecting the Heat or Cool Mode

Select Mode by Pressing the MODE Button

Heating Only

The HEAT setting indicates the

temperature the room has to
reach before the furnace will

turn on to heat the room.

70

HEAT

68

1

Press

MODE

Cooling Only

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

Heating or Cooling

AUTO will automatically select

heat or cool based on room

temperature demand.

OFF indicates both heating

Off

and air conditioning

systems are turned off.

70

AUTO

70

OFF

70

Page 1.2

76

COOL

76

COOL

HEAT

68

Press

MODE

Press

MODE

Selecting Your Desired Temperature

Selecting Your Desired Temperature

1

(adjusting the setpoints)

(adjusting the setpoints)

AUTO MODE

Pressing the UP or DOWN buttons in Auto mode
will adjust both the heat and cool set temperatures
simultaneously.

76

AUTO

70

HEAT OR COOL MODE

Pressing the UP or DOWN buttons in Heat or Cool mode will
adjust only the heat or cool set temperature.

COOL

HEAT

68

76

COOL

Adjust the desired

set temperature with the

buttons.

Adjust the desired

set temperature with the

70

buttons.

Using the Fan ButtonUsing the Fan Button

76

AUTO

FanOn

70

68

COOL

HEAT

Press

FAN

Fan On indicates constant fan operation.
If Fan On is selected the fan will run
continuously at all times, except in Off,
and will only run if there is a heating or
cooling demand in Unoccupied periods.
Pressing the FAN button toggles this
feature on or off.

Page 1.3

SECTION 2

Getting to Know Your ThermostatGetting to Know Your Thermostat

Section 2 Contents:

Front Panel Buttons.....................2.2

Display Features...........................2.3

2

Page 2.1

Front Panel Front Panel

2

Backlit LCD Display

Carrier

Pm

I2:00

Su

AUTO

Heat or Cool Demand Indicator
Red = Heat, Green = Cool

QUICK RELEASE FOR
ACCESSORY PORT

(pg. 18.1)

74

COOL

HEAT

72

Commercial

Thermostat

AUTO

Warmer Button sometimes referred
(glows red) to as the UP button

Override
Button

74

COOL

HEAT

72

HUMIDITY

FANMODE OUTSIDE

RESET
FILTER

[ ]

Cooler Button sometimes refer-
(glows blue) red to as the

DOWN button

OVER
RIDE

[ ]

HUMIDITY

FANMODE

Page 2.2

OUTSIDE

RESET
FILTER

Display FeaturesDisplay Features

2

Setup

Service Filter

Pan UV Light

AUTO
OFFON

Override

FanOn

Mode Indicators - Section 3
Selects the operational mode of the equipment.
HEAT - Indicates the heating mode.
COOL - Indicates the air conditioning mode.
AUTO - Indicates the system will automatically changeover
between heat and cool modes as the temperature varies.
OFF - Indicates heating and cooling is turned off.

Room Temperature Display - Section 4
Indicates the current room temperature and displays the outside
temperature when selected.

Desired Set Temperature - Section 3/4
Indicates desired room temperature(s). Also displays the daily
maximum and minimum outside temperatures.

Outside icon - Section 4
Indicates the temperature displayed is from the optional outside
sensor.

Override icon - Section 5
Indicates the Unoccupied mode of the thermostat is being overriden
for up to 4 hours.

DeHumidify

I88

Page 2.3

88

COOL

Outside

Remote

AUXHEAT

88

2

Display FeaturesDisplay Features

2

2

Service Filter

Pan UV Light

AUTO
OFFON

Override

FanOn

Setup icon - Sections 6-15

Indicates the thermostat is in the setup mode.

Fan On icon - Section 6
Indicates constant, continuous fan operation. When Fan On is not
lit - indicates the fan will only operate when necessary to heat or to
cool.

Service Filter icon - Section 15
Appears when the filter should be serviced under normal conditions.
Adjustable from 0 - 1950 hours of blower operation.

icon - Section 7
Indicates keypad has been locked.

UV Light icon - Section 10/15
Appears when the UV bulb should be serviced under normal
conditions. Adjustable from 0 - 1950 days of operation.

Remote icon - Pages 4.2, 13.3 & 17.3
Indicates the remote sensor reading of the thermostat is being
viewed.

DeHumidify

I88

Page 2.4

Setup

88

COOL

Outside

Remote

AUXHEAT

88

Display FeaturesDisplay Features

Setup

Service Filter

Pan UV Light

AUTO
OFFON

Override

FanOn

AuxHeat icon - Page 12.4

Indicates 2nd stage electric strip heat is being used when the
thermostat is programmed for Heat Pump operation.

Humidify/DeHumidify icon ­ Indicates the system is currently humidifying/dehumidifying the air.

Service Pan icon - Section 14
Indicates that a sensor (accessory) has detected the condensate
drain pan is full and the compressor (Y1) has been locked out.

DeHumidify

I88

Sections 8-9

88

COOL

Outside

Remote

AUXHEAT

88

2

Page 2.5

SECTION 3

Basic OperationBasic Operation

3

Section 3 Contents:

Programming for Auto or

Manual Operation......................3.2

Selecting the Proper

Operating Mode.........................3.3

Selecting Your Desired

Temperature...............................3.5

Note: During setup & programming pressing the UP or DOWN

buttons will modify the flashing selection.

Page 3.1

Manual or Auto-Changeover

Manual or Auto-Changeover

Thermostat

Thermostat

When the very simplest operation is desired, this thermostat may
be configured to be a manual heat and cool thermostat. Follow the
step below.

The thermostat may be programmed to function as a Heat Only or
Cool Only thermostat by selecting ‘NO’ in the setup screen below.
This will lockout the Auto-Changeover screen and only allow the Off,
Heat, and Cool screens to be accessed.

3

MODE

HUMIDITY

MODE

YES

NO

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Select Yes if you would
like the thermostat to
be Auto-Changeover or
No for a Heat Only and
Cool Only Thermostat.

pressed, the display will leave the setup screens after 30 seconds.

AUTO

Setup

Page 3.2

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

I

Press

HUMIDITY

Operating Mode when the Thermostat

Operating Mode when the Thermostat

is Configured to be:

is Configured to be:

MANUAL-CHANGEOVER - If the thermostat is configured to be Manual-

3

Changeover, the following screens will be available by pressing the
MODE button.

Select the Mode by Pressing the MODE Button

Heating Only

The HEAT setting indicates the

temperature the room has to

reach before the furnace will

turn on to heat the room.

Cooling Only

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

OFF indicates both heating

systems are turned off.

Off

and air conditioning

70
70

OFF

HEAT

68

76

COOL

70

Press

MODE

Press

MODE

Page 3.3

Operating Mode when the Thermostat

Operating Mode when the Thermostat

is Configured to be:

is Configured to be:

AUTO-CHANGEOVER - If the thermostat is configured to be Auto­ Changeover, the following screens will be available by pressing
the MODE button.

Select the Mode by Pressing the MODE Button

Heating Only

The HEAT setting indicates the

temperature the room has to
reach before the furnace will

turn on to heat the room.

Cooling Only

The COOL setting indicates the

temperature the room has to

reach before the air conditioner

will turn on to cool the room.

Heating or Cooling

AUTO will automatically select

heat or cool based on room

temperature demand.

OFF indicates both heating

Off

and air conditioning

systems are turned off.

70
70

AUTO

70

OFF

HEAT

68

76

COOL

76

COOL

HEAT

68

70

3

Press

MODE

Press

MODE

Press

MODE

Page 3.4

Selecting Your Desired Temperature (adjusting setpoints)Selecting Your Desired Temperature (adjusting setpoints)

AUTO MODE

3

Pressing the UP or DOWN buttons in Auto mode
will adjust both the heat and cool set temperatures
simultaneously. For more information on this see page 12.2.

Adjust the desired

76

AUTO

70

HEAT OR COOL MODE

Pressing the UP or DOWN buttons in Heat or Cool modes will
adjust only the heat or cool set temperature.

COOL

HEAT

68

76

COOL

set temperature with the

buttons.

Adjust the desired

set temperature with the

70

buttons.

Page 3.5

SECTION 4

Viewing the Temperature and Humidity SensorsViewing the Temperature and Humidity Sensors

Section 4 Contents:

Viewing the Outside

Temperature..............................4.2

Viewing the Indoor

Humidity....................................4.3

4

Page 4.1

Viewing the Outside TemperatureViewing the Outside Temperature

Requires an outside sensor (optional accessory) to be installed
(see page 13.2 for wiring instructions). To read the temperature
from the outside sensor, press the OUTSIDE button. The display

4

will then show the current outside temperature.

AN OUTSIDE

The current outside
temperature will be
displayed.
This reading is from the
sensor connected to RS2.

This reading is from
the sensor connected
to RS1.

RESE
FILTE

Press the OUTSIDE
button to view
the Outside
temperature.

83

Outside

Current outside
temperature.

Press

MODE

78

HUMIDITY

Press the OUTSIDE
button to leave the
Outside temperature
screen.

MODE

AN OUTSIDE

RESE
FILTE

Note: If no sensors are connected 2 dashes [- -] will appear on the display.

Page 4.2

Viewing the Indoor HumidityViewing the Indoor Humidity

Requires the Humidity Module (optional accessory) to be installed.
To display the current humidity at the thermostat, press the
HUMIDITY button. The display will then show the current indoor
humidity along with the humidification setpoint (Section 8).

Note: The humidity reading will not appear unless the Humidity
Module has been installed. If the Humidity Module has not been
installed dashes will appear in place of the humidity reading.

4

HUMIDITY

Current Room Humidity

NOTE: Due to variations in environmental conditions, it is not always possible
to achieve the desired humidification or dehumidification setpoint.

To view the indoor humidity
reading, press the
HUMIDITY button

40

Press the HUMIDITY button
again to return the display
to normal operation.

Humidify

0

Setup

I

Press

HUMIDITY

Page 4.3

SECTION 5

Override OperationOverride Operation

Overriding the Normal OperationOverriding the Normal Operation

The OVERRIDE button may only be used when the Dry Contact has
forced the thermostat into the Unoccupied mode.

Unoccupied Operation - During a Dry Contact forced
unoccupied period pressing the OVERRIDE button will
temporarily force the thermostat into the mode it was in before
the Dry Contact forced it into the Unoccupied mode.
For example: If the thermostat was in the Auto mode and the
Dry Contact forced the thermostat into the Unoccupied mode,
then pressing the OVERRIDE button will force the thermostat
back into the Auto mode.
The remaining override time will be displayed in the upper left
hand corner of the display. The override timer can be set up to a
maximum of four (4:00) hours, in increments of 30 minutes. If the
timer has been set for the maximum time, the next press of the
OVERRIDE button will reset the timer, returning the thermostat to
the Unoccupied mode.
To adjust the setpoints for the Unoccupied mode, see page 15.4.

85

COOL

Unoccupied

:

30

AUTO

Override

65

65

HEAT

55

74

COOL

HEAT

72

Press

OVERRIDE

Page 5.1

SECTION 6

Programming the Fan OperationProgramming the Fan Operation

Section 6 Contents:

Using the Fan Button.................6.2

Smart Fan Operation..................6.2

Setting the Fan-Off Time

Delay..........................................6.3

Page 6.1

6

Using the Fan ButtonUsing the Fan Button

When the fan is set for automatic operation it will energize any time
there is a call for heating or cooling, otherwise the fan will remain off.
Pressing the FAN button will energize the fan and display the FanOn
icon on the thermostat display. To operate the fan in the automatic
mode, press the FAN button again and the FanOn icon will disappear.

Press

6

FAN

Fan On indicates constant fan operation.
If Fan On is selected the fan will run
continuously at all times, except in Off,

COOL

and will only run if there is a heating or

HEAT

cooling demand in Unoccupied periods.
Pressing the FAN button toggles this
feature on or off.

AUTO

FanOn

70

76

68

Smart Fan OperationSmart Fan Operation

This feature allows the fan to run continuously in Heat, Cool or
Auto mode, and automatically de-energize during dry contact initiated
Unoccupied periods (see page 14.3), except when necessary to
heat or cool. To use this feature, place the thermostat in the Heat,
Cool or Auto mode. Next, press the FAN button to display the
FanOn icon (see below).

Press

FAN

76

AUTO

FanOn

70

Page 6.2

COOL

HEAT

68

Setting the Fan-Off Time DelaySetting the Fan-Off Time Delay

To increase cooling efficiency of your unit, the thermostat may be
programmed to continue running the fan after a call for cooling has
been satisfied. This delay may be set for 30, 60, or 90 seconds. If
the Fan Off Delay is set for zero seconds, the fan will not energize
after a call for cooling has been satisfied.

6

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

:00

Set the Fan Off Delay
to 0, 30, 60, or 90
seconds.

FanOn

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 6.3

Setup

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

2

Press

HUMIDITY

SECTION 7

Thermostat Display OptionsThermostat Display Options

Section 7 Contents:

Turning On/Off the

Backlight...................................7.2

7

Programming the Thermostat
to Display Temperature in

Fahrenheit or Celsius..............7.2

Locking/Unlocking the

Keypad......................................7.3

Programming a Security

Level..........................................7.4

Page 7.1

Turning On/Off the BacklightTurning On/Off the Backlight

MODE

HUMIDITY

MODE

Programming the Thermostat to Display

Programming the Thermostat to Display

Temperature in Fahrenheit or Celsius

Temperature in Fahrenheit or Celsius

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Setup

Select backlight operation:

ON - Light continuously.
OFF - Light for 8 seconds

after a button press.

C

Select thermostat
operation in degrees
Fahrenheit or Celsius.

F

pressed, the display will leave the setup screens after 30 seconds.

ON

Setup

f

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

3

Press

MODE

4

Press

HUMIDITY

7

Page 7.2

Locking/Unlocking the KeypadLocking/Unlocking the Keypad

To prevent unauthorized use of the thermostat, the front panel
buttons may be disabled. To disable, or ‘lock’ the keypad, press
and hold the MODE button. While holding the MODE button,
press the UP and DOWN buttons together. The icon will
appear on the display, then release the buttons.

7

Press all three

buttons in the order

outlined above for

keypad lockout

To unlock the keypad, press and hold the MODE button. While
holding the MODE button, press the UP and DOWN buttons
together. The icon will disappear from the display, then
release the buttons.

MODE

AUTO

65

85

COOL

HEAT

55

Page 7.3

Programming a Security LevelProgramming a Security Level

When a security level has been programmed, the thermostat will allow
limited adjustment to the setpoints (steps # 6 and 7). In security
levels 2 and 3, the thermostat is forced into the Program On mode.
To disable the security feature, set the value in step #5 to 0; this will
cause steps # 6 and 7 not to appear.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

7

Select the security level:
0=No security in effect
1=Setpoint range limited
2=1+ locked in current
mode.
3=2 + prohibits setpoint

Step #6 appears only
if step #5 is not 0.

Step #7 appears only
if step #5 is not 0.

changes

Adjust the maximum
allowable heat setpoint
when security is in effect.

Adjust the minimum
allowable cool setpoint
when security is in effect.

(35 - 99 )

(35 - 99 )

0

80
65

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 7.4

Setup

Setup

Setup

5

Press

MODE

HI

6

HEAT

7

COOL

LO

Press

MODE

Press

HUMIDITY

SECTION 8

HumidificationHumidification

Section 8 Contents:

Installing the Humidity

Module.......................................8.2

8

Setting a Thermostat Jumper

for Humidity Operation............8.3

Adjusting the Humidification

Setpoint.....................................8.4

NOTE: The humidification functions described in this section will
only be available if a Humidity Module has been properly installed.

Disclaimer:

The manufacturer of this thermostat cannot be liable for
misinstallation, improper connection or improper programming of
the humidity functions of this thermostat that may result in water
damage or mold growth.

Additionally, the manufacturer of this thermostat is not responsible
for the fitness of the humidifier and/or installation of said humidifier
connected to this thermostat. Furthermore, the maintenance of the
humidifier components, including but not limited to, the filters and
pads are not the responsibility of the thermostat manufacturer.

The Humidifier Service icon is only a suggestive reminder and
should not take the place of the humidifier manufacturer’s
required maintenance requirements and schedule.

Page 8.1

Installing the Humidity ModuleInstalling the Humidity Module

To install the Humidity Module the thermostat must be detached
from the back plate. Plug the Humidity Module into the Humidity
Module connector as shown in Figure 2 below. Follow the detailed
instructions included with the Humidity Module accessory. Once the
Humidity Module has been installed, you must adjust the Humidity
jumper setting to HUM as shown in Figure 1 below. This will allow
you to access the humidification and dehumidification setup steps.

Back of 33CS400-01

HUM

DEHUM

ECON

Y2

(MISC1

MISC3 MISC2 MISC1

ONLY)

W1

Y1

G

MISC2

CK1

CKGND

R

C

MODULE WITH SENSING

2

4

INSTALL HUMIDITY

ELEMENT OUTWARD

1

3

For proper humidity operation, this
jumper must be set for HUM.

Figure 1

(FAN)
ELEC

GAS

HP

GAS

B

O

W2

MISC1

HUM

NO HUM

RS2

MISC3

RS+5

Z

8

6

X

Rs1

1

RSGND

Y

579

Install the Humidity Module

(see Humidity Module Instruction
Sheet for more detailed information).

HUM

OR

NO HUM

8

Figure 2

Humidity Module

Thermostat Circuit
Board.

Page 8.2

Humidity Module
Plug located on
the Thermostat
Circuit Board.

Setting a Thermostat Jumper for

Setting a Thermostat Jumper for

Humidity Operation

Humidity Operation

To control a MISC output for humidification, place the MISC1, MISC2,
or MISC3 jumper on the terminal labeled HUM (see diagram below).
This will supply 24VAC to the selected MISC terminal based on the
humidification programming in the following pages. Only one of the
three outputs (MISC1, MISC2, or MISC3) is required to have this
jumper. For more information regarding the MISC1, MISC2, and

MISC3 outputs, please see Section 16.

8

In the diagram below, the MISC3 jumper
has been set for HUM (humidify) operation.

(FAN)

ELEC

GAS

HP

2

4

1

3

MISC1

GAS

B

O

W2

MISC1

HUM

NO HUM

Rs2

MISC3

RS+5

Z

8

6

X

Rs1

1

RSGND

Y

579

HUM

DEHUM

MISC3 MISC2 MISC1

Y2

(MISC1

ONLY)

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

AND VOID YOUR WARRANTY

DEHUM

CKGND

HUM

MISC2

CK1

MISC3 MISC2 MISC1

W1

Y1

G

R

C

MISC1

OK

Y2

(MISC1

ONLY)

INSTALL HUMIDITY

MODULE WITH SENSING

ELEMENT OUTWARD

Page 8.3

Adjusting the Humidification SetpointAdjusting the Humidification Setpoint

If your HVAC unit is equipped with a humidification system and the
Humidity Module has been installed, the thermostat will provide power
to the appropriate terminal on the backplate of the thermostat when
the humidity in the home falls below the setpoint you have chosen.
The value for this setpoint ranges from 0% to 60%.

NOTE: Due to variations in environmental conditions, it is not always possible
to achieve the desired humidification or dehumidification setpoint.

HUMIDITY

Press the HUMIDITY
button to enter the
Humidity Setup screen.

NOTE: Each step # is located at

the top right corner of the
display for easy reference.

8

Current Room Humidity

Adjust the desired
humidification setpoint

(0%-60%)

40

Press the HUMIDITY button to leave the
Humidity Control screens (if no buttons are
pressed, the display will leave the Humidity
Control screens after 30 seconds).

Humidify

0

Setup

I

Press

HUMIDITY

Humidification Notes: Press the button to set the humidity
setpoint to 0% for no humidification operation.

You cannot set the dehumidify setpoint any lower than the humidify setpoint; a
5% differential is forced between the humidify and dehumidify setpoints.

Page 8.4

SECTION 9

DehumidificationDehumidification

Section 9 Contents:

Configuring a Thermostat Output
Jumper for Dehumidification

Operation...................................9.2

9

Adjusting the Dehumidification

Setpoint......................................9.3

Using Your Air Conditioner

to Dehumidify............................9.4

Using the DEHUM

Terminal.....................................9.5

NOTE: The dehumidification functions described in this section will
only be available if a Humidity Module has been properly installed.
For instructions on installing the Humidity Module please see page 8.2.

Page 9.1

Setting a Thermostat Jumper for

Setting a Thermostat Jumper for

Dehumidification Operation

Dehumidification Operation

To control a MISC output for dehumidification,

install the Humidity
Module and place the Humidity Jumper on HUM (see page 8.2).
Then place the MISC1, MISC2, or MISC3 jumper on the terminal

labeled DEHUM (see diagram below).

This will supply 24VAC to the
selected MISC terminal based on the programming in the following
pages. Only one of the three outputs (MISC1, MISC2, or MISC3) is
required to have a jumper. For more information regarding the

MISC1, MISC2, and MISC3 outputs, please see section 16.

In the diagram below, the MISC2 jumper has
been set for DEHUM (dehumidification) operation.

(FAN)

ELEC

GAS

HP

2

4

INSTALL HUMIDITY

1

3

GAS

B

O

W2

MISC1

HUM

NO HUM

Rs2

MISC3

RS+5

Z

8

6

X

Rs1

1

RSGND

Y

579

HUM

DEHUM

MISC3 MISC2 MISC1

(MISC1

ONLY)

DEHUM

MISC2

CKGND

HUM

MISC3 MISC2 MISC1

W1

Y1

G

CK1

R

C

Y2

(MISC1
ONLY)

MODULE WITH SENSING

ELEMENT OUTWARD

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

MISC1

OK

MISC1

AND VOID YOUR WARRANTY

Page 9.2

9

Y2

Adjusting the Dehumidification SetpointAdjusting the Dehumidification Setpoint

Dehum Terminal: If a MISC terminal selected for DEHUM operation
(see page 9.2) then the thermostat will provide power to this terminal
the when the humidity in the home is above the setpoint you have
chosen. See page 9.6 for detailed programming instructions. To utilize
this feature your HVAC unit must be equipped with a DEHUM terminal.

Cool to Dehumidify: If the thermostat is programmed for Cool to
Dehumidify operation, then the thermostat will energize the cooling
system any time the humidity in the home is above the setpoint you
have chosen. See page 9.4 for detailed programming instructions.

In each case, when the indoor humidity falls below the setpoint you
have selected, Cool to Dehumidify and the MISC terminal will be
de-energized. The value for this setpoint ranges from 25% to 99%.

9

NOTE: Due to variations in environmental conditions, it is not always
possible to achieve the desired humidification or dehumidification setpoint.

HUMIDITY

MODE

Press the HUMIDITY button
to enter the Humidification
Setup screens.

Press the MODE button once

NOTE: Each step # is located at

the top right corner of the
display for easy reference.

Current Room Humidity

ON / +

Adjust the desired
dehumidification setpoint

(25%-99%)

OFF / -

40

99

Press the HUMIDITY button to leave the Humidity
Control screens (if no buttons are pressed, the display
will leave the Humidity Control screens after 30 seconds).

DeHumidify

Setup

2

Press

HUMIDITY

Dehumidification Notes: Press the button to set the
dehumidification setpoint to 99% for no dehumidification operation.
This will lockout Advanced Setup steps 8 and 9 (see page 9.4).

You cannot set the dehumidify setpoint any lower than the humidify setpoint; a
5% differential is forced between the humidify and dehumidify setpoints.

Page 9.3

Using Your Air Conditioner to Dehumidify Using Your Air Conditioner to Dehumidify

If Cool to Dehumidify is on and the Humidity Module is installed,
the thermostat has the ability to initiate a cooling cycle for advanced
dehumidification operation. When the thermostat detects the humidity
percentage is above the setpoint for dehumidification, and heating or
cooling is not on, the thermostat will force the compressor to run with
the fan, thus reducing moisture in the air. The green LED will blink
once every eight seconds to indicate this is taking place. This feature
will also allow you to adjust the cooling overshoot of the

°°

0 to 5 (adjustable in step #9). For

°°

set for 3 F and the cooling setpoint is set for 74 F, then as long as the room
temperature reads between 71 F and 74 F this feature will energize the
compressor and fan to dehumidify the air.

MODE

HUMIDITY

MODE

Steps 8 and 9 only appear if the Dehumidification
setpoint is not 99% (see page 9.3).

Step 9 appears only if step 8 is set to “ON”

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Dehumidification Notes: The thermostat must be in the Cool or Auto
mode for the Cool to Dehumidify feature to be available.

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

On

Select Cool to
Dehumidify feature.

Off

Adjust the maximum
overshoot of the set
temperature in Cool to
Dehumidify mode.

(0 - 5 )

pressed, the display will leave the setup screens after 30 seconds.

Example: If the cooling overshoot is

°°

Setup

DeHumidify

OFF

Setup

DeHumidify

3

Page 9.4

setpoint, from

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

8

Press

MODE

9

COOL

Press

HUMIDITY

9

Using the Dehum TerminalUsing the Dehum Terminal

If you configure a MISC output jumper for DEHUM, it may be
programmed to operate in one of two ways:

1) Normally Closed (NC): The thermostat will de-energize the
DEHUM terminal to allow the fan to run in low speed when there
is a call for 1st stage cooling and the room humidity is greater than
the dehumidification setpoint.

2) Normally Open (NO): The thermostat will energize the DEHUM
terminal to allow the fan to run in low speed when there is a call
for 1st stage cooling only and the room humidity is greater

9

than the dehumidification setpoint.

MODE

HUMIDITY

MODE

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Dehumidification Notes: The DEHUM terminal will “release” and allow
the fan to operate normally if there is call for 2nd stage cooling or if the call
for Cooling and/or Cool to Dehumidify has been satisfied.

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

NC

Normally Closed (NC) =
DEHUM de-energized for
low speed fan.

Normally Open (NO) =
DEHUM energized for

NO

low speed fan.

pressed, the display will leave the setup screens after 30 seconds.

DeHumidify

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Setup

I0

Press

HUMIDITY

Page 9.5

SECTION 10

Viewing Equipment Run-TimesViewing Equipment Run-Times

Section 10 Contents:

Viewing the Override

Run-Time.................................10.2

Viewing the Humidifier

Run-Time................................ 10.3

Viewing the UV Light

Run-Time.................................10.4

10

Page 10.1

Viewing the Override Operation Run-TimeViewing the Override Operation Run-Time

This display will track the number of hours that your thermostat has
been operating in the Override mode (see page 5.1). Press the FAN
button to reset the counter.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Press

10

Counts the number of
hours Override has
been active. Press FAN
to reset the Override Run-

FAN

Time counter.

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

0

Override

Page 10.2

Setup

I i

Press

HUMIDITY

Viewing the Humidification Run-TimeViewing the Humidification Run-Time

After your humidification system has been operating for the number of
days set in step #12 below, the Service Humidify icon will appear. This
counter keeps track of the number of days since the Service Humidify
icon was reset.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Counts the number of
days the humidifier has

Press

been running. Press
FAN to reset the
Service Humidify
counter and remove the

FAN

icon from the display.

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Service

0

Humidify

Page 10.3

Setup

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

I2

HUMIDITY

10

Press

Viewing the UV Light Run-TimeViewing the UV Light Run-Time

After the UV light has been operating for the number of days set in
step #13 below, the Service UV Light icon will appear. This counter
keeps track of the number of days since the UV light icon was last
reset.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

10

Counts the number of days

Press

since the UV Light was last
reset. Press FAN to reset
the Service UV Light counter
and remove the icon from the

FAN

display.

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Service

UV Light

0

Page 10.4

Setup

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

I3

Press

HUMIDITY

SECTION 11

Electric Heat and Heat Pump OperationElectric Heat and Heat Pump Operation

Section 11 Contents:

Viewing the Heat Pump and
Reversing Valve Jumper

Setting.....................................11.2

Viewing the Electric Heat

Jumper Setting.......................11.3

Using Emergency Heat............11.4

Page 11.1

11

Viewing the Heat Pump and

Viewing the Heat Pump and

Reversing Valve Jumper Settings

Reversing Valve Jumper Settings

Steps 14 and 15 are ‘Read Only’ and may only be set with the
jumpers on the circuit board of the thermostat.

MODE

HUMIDITY

MODE

11

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

ON = Heat Pump
operation
OFF = Gas Electric
operation

Indicates that the
thermostat jumper
is set for an O
reversing valve
(energize in cooling)
or a b reversing valve
(energize in heating).

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

OFF

Page 11.2

Setup

Setup

O

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

I4

I5

HUMIDITY

Press

MODE

Press

Viewing the Electric Heat Jumper SettingViewing the Electric Heat Jumper Setting

Placing the jumper on ELEC will cause the thermostat to turn on the
fan immediately any time there is a heat demand. Since most gas
furnaces control the fan, this feature should be off unless it is
necessary for the thermostat to energize the fan with first stage heat.

Step 16 is ‘Read Only’ and may only be set with the jumpers on the
circuit board of the thermostat.

MODE

HUMIDITY

MODE

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

ON indicates that the
thermostat jumper is
set for Electric Heat
operation, or OFF for
Gas/Electric or Heat
Pump operation.

pressed, the display will leave the setup screens after 30 seconds.

OFF

EH

Setup

Page 11.3

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

I6

Press

HUMIDITY

11

Using Emergency HeatUsing Emergency Heat

ENTER EMERGENCY HEAT: Only available if you have a Heat Pump
installed. To initiate the Emergency Heat feature, press the FAN
button. While holding the FAN button press UP button. The
Cool setpoint display will read ‘EH’ (emergency heat).

Press for

Emergency Heat

FAN

73

11

OPERATION: During Emergency Heat operation the
thermostat will turn on the fan and the 2nd stage of heat
when there is a demand for heat. Also during Emergency
Heat the 1st stage of heating or cooling will be unavailable.

EXIT EMERGENCY HEAT: Follow the same steps as entering
Emergency Heat by pressing the FAN and UP buttons. During
Emergency Heat, only OFF and HEAT modes are available by
pressing the MODE button.

the

HEAT

74

Page 11.4

SECTION 12

Timers and DeadbandsTimers and Deadbands

Section 12 Contents:

Adjusting the Heat/Cool

Differential..............................12.2

Adjusting the Cycles

Per Hour..................................12.3

Adjusting the Deadband..........12.4

Selecting 2nd Stage Turn

Off Temperature.....................12.6

Page 12.1

12

Adjusting the Heat/Cool DifferentialAdjusting the Heat/Cool Differential

The Heat and Cool setpoints will not be allowed to come any closer to
each other than the value in this step. This minimum difference is
enforced during Auto-Changeover operation.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

2

Setup

I7

COOL

HEAT

Press

HUMIDITY

Adjust the minimum
difference between
cooling & heating
setpoints.

12

Press the HUMIDITY button to leave the Setup screens. If no buttons
are pressed, the display will leave the setup screens after 30 seconds.

(0 - 6 )

Note: To increase the spread between the heating and cooling
setpoints, press the MODE button until only the heat setpoint is
displayed. Adjust the desired setpoint. Wait two seconds after
adjusting the set point so the thermostat can accept the change.
Press the MODE button until only the cool setpoint is displayed.
Adjust the desired setpoint.
set point so the thermostat can accept the change.

Wait two seconds after adjusting the

Press the
MODE button again to enter the Auto-Changeover mode where
both the heat and cool setpoints are displayed.

Page 12.2

Adjusting the Cycles Per HourAdjusting the Cycles Per Hour

The Cycles Per Hour setting may limit the number of times per hour
your HVAC unit may energize. For example, at a setting of 6 cycles
per hour the HVAC unit will only be allowed to energize once every 10
minutes. The Cycles Per Hour limit may be overridden and reset by
pressing the UP or DOWN buttons on the thermostat.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Select the cycles per
hour limit.
d=cycles per hour
limit defeated.
d1=d + defeat 5 min.
compressor lockout.

(d1, d, 2 - 6)

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Setup

6

I8

Cy

Page 12.3

12

Press

HUMIDITY

Adjusting the DeadbandAdjusting the Deadband

MULTI-STAGE OPERATION - Controls up to two Heat and two Cool
stages.

The 2nd Stage of heat or cool is
(A) The 1st Stage has been on for the two minutes.

And

(B) The temperature spread
than: the setpoint

plus the 1st stage deadband (step #19, next

page), plus two degrees.

12

2nd Stage

Heating

Deadband Deadband DeadbandDeadband

1st Stage

turn on

turn on

DECREASE INCREASE

turned on when:

from the setpoint is equal to or greater

Cooling

db 1 db 1db 2 db 2

(adj. 1-6 )(adj. 0-10 ) (adj. 0-10 )(adj. 1-6 )

Heat

Setpoint

TEMPERATURE

Cool

Setpoint

1st Stage

turn on

2nd Stage

turn on

Page 12.4

Adjusting the DeadbandAdjusting the Deadband

For more detailed information, please see the explanation on the
previous page.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Adjust the deadband
for the 1st stage.

(1 - 6 )

2

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Page 12.5

Setup

I9

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

12

Press

HUMIDITY

Selecting 2nd Stage Turn

Selecting 2nd Stage Turn

Off Temperature

Off Temperature

If ON is selected, the second stage of cooling or heating will remain
energized until the thermostat reaches the setpoint on the thermostat
display.

If OFF is selected, the second stage of cooling or heating will turn off
after reaching the 1st stage (see page 12.4 for more

deadband

information).

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

On

Select On or Off:
On - 2nd stage will
remain on until
setpoint is reached.
Off - 2nd stage will
turn off after reaching

Off

1st stage deadband.

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

OFF

2

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Setup

20

HUMIDITY

12

MODE

HUMIDITY

MODE

Page 12.6

Press

SECTION 13

Programming Remote Sensor OperationProgramming Remote Sensor Operation

Section 13 Contents:

Installing the Remote

Sensors...................................13.2

Controlling or Reading the
Remote Temperature (RS1)...13.3

Page 13.1

13

Installing the Remote SensorsInstalling the Remote Sensors

One wired or up to eight wireless
the thermostat (RS1) to control the temperature in another room.
more than one wireless sensor is used on RS1, the thermostat will ave­rage the sensors to determine the displayed temperature reading.
wired or wireless remote sensor may be installed to read the outside
temperature (RS2). If a sensor is connected to RS1 and is program­med to control the thermostat,
blink once per second to indicate that a remote sensor reading is being
displayed. The wired sensor can be connected to the thermostat with

up to 150’ of 18 ga., 300’ of 20 ga., or 450’ of 22 ga. unshielded,
thermostat wire. The wired sensor can be connected to the therm-

ostat using a two or three wire installation. If a two wire installation is
required, then RS+5 must be connected to RSGND (see below).

This wire MUST be completely separated from the thermostat or
any other control wiring and must NOT be in the same conduit
as high voltage wiring.

13

remote sensors may be installed on

If

the degree icon on the thermostat will

One

W2
MISC1
Rs2
MISC3
RS+5
RS1
RSGND

RS-GND

RS

See the Remote Sensor accessory for further details.

RS1 RS2

W1/O/B

MISC2

CKGND

Y1

G

CK1

R
C

RS-GND

RS

RSRS

Page 13.2

Controlling or Reading the

Controlling or Reading the

Remote Temperature (RS1)

Remote Temperature (RS )1

The thermostat may be programmed to only READ the remote sensor,
or to CONTROL to the remote sensor. Refer to Advanced Setup step
#21, below.

Read Only Sensor (RS1): If step #21 is set to only READ to the
remote sensor, this temperature may be viewed by pressing the
OUTSIDE button on the thermostat and then pressing the MODE
button (see page 4.2).

Control Sensor (RS1): If step #21 is set to CONTROL to the remote
sensor, the thermostat will ignore the reading of its internal
temperature sensor and only display the temperature reading from
the remote sensor. The degree icon on the thermostat will blink
once per second to indicate that a remote sensor reading is being
displayed.

MODE

HUMIDITY

MODE

YES

NO

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Optional Remote Sensor:
YES = Control to Remote
Sensor RS1.
NO = Read Only Remote
Sensor RS1.

pressed, the display will leave the setup screens after 30 seconds.

Setup

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

2i

Remote

HUMIDITY

13

Press

Page 13.3

SECTION 14

Programming the Dry ContactProgramming the Dry Contact

Section 14 Contents:

Dry Contact Operation............ 14.2

Dry Contact Polarity.................14.2

Dry Contact Programming.......14.3

Override Operation...................14.4

Random Start............................14.5

14

Page 14.1

Dry Contact Operation Dry Contact Operation

If the dry contact is going to be used, select YES in step #22 below; if
the dry contact is not going to be used, select NO. in step #22 below.

DRY CONTACT POLARITY - The terminals may be set to be
Normally Open (NO) or Normally Closed (NC) in step #23.
If NO is selected the dry contact will operate when it is forced
closed. If NC is selected, the dry contact will operate until it is
forced open.

MODE

HUMIDITY

MODE

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

YES

Set to YES if the dry
contact will be used.
Set to NO if the dry
contact will not be used.

NO

Step 23 appears only if step 22 is “YES”.

NC

Dry Contact Polarity:
Normally Closed (NC)
Normally Open (NO)

NO

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Setup

22

Setup

23

Page 14.2

Press

MODE

Press

HUMIDITY

14

Dry Contact ProgrammingDry Contact Programming

OVERRIDE OR SERVICE THE CONDENSATE DRAIN PAN - If
Override is selected in step #24 (below), when the dry contact is
energized the thermostat will be forced into or out of Unoccupied
setpoints (next page) depending on the polarity of the Dry Contact.
If Service Pan is selected, when the dry contact is energized the
thermostat will lockout Y1 (compressor) and write Service Pan on
the display.

MODE

HUMIDITY

MODE

Step 24 appears only if step 22 is “YES”.

14

Press the HUMIDITY button to leave the Setup screens. If no buttons are

NOTE: If Service Pan is selected and the dry contact was closed at least once, the
Service Pan icon will remain on the display to alert the user that a problem has
occurred. This icon will be cleared once a button is pressed.

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Service Pan

Select Service Pan to
lockout Y1 when the dry
contact is energized.
Select Override to enable
Override setpoints when
the dry contact is energized.

Override

Override

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Setup

24

pressed, the display will leave the setup screens after 30 seconds.

Override Service Pan

Press

HUMIDITY

W2
MISC1
RS2
MISC3
RS+5
RS1
RSGND

Connect wires to a time
clock or other device to
force the thermostat into
or out of Unoccupied.

W1/O/B

MISC2

CKGND

Y1
G

CK1

R
C

OR

Page 14.3

W2
MISC1
Rs2
MISC3
RS+5
RS1
RSGND

Connect wires to a device that
will complete the circuit betw­een CK1 and CKGND when the
Condensate Drain Pan is full.

W1/O/B

MISC2

CKGND

Y1

G

CK1

R
C

Dry Contact ProgrammingDry Contact Programming

UNOCCUPIED SETPOINTS - If Override is selected in step #24 (see
previous page), when the dry contact is energized the thermostat

will be forced into or out of Unoccupied setpoints. To adjust the
Unoccupied setpoints follow the setup steps below.

MODE

HUMIDITY

MODE

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Setup

Setup

25

COOL

26

HEA T

Adjust the cooling
setpoint for unoccupied
periods.

(35 - 99, OF )

Adjust the heating set­point for Unoccupied
periods.

(OF, 35 - 99 )

pressed, the display will leave the setup screens after 30 seconds.

Unoccupied

85

Unoccupied

55

Page 14.4

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Press

MODE

HUMIDITY

14

Press

Random Start OperationRandom Start Operation

This feature causes a 2 to 30 second delay before energizing
the thermostat outputs after any of these events:

Loss of Power to the thermostat: When power to the thermostat
is interrupted and then restored, Random Start will lockout the
outputs of the thermostat for a random amount of time. This
delay helps to keep multiple thermostats from energizing their
outputs at the same time after a power outage.

Closure of the Dry Contact to force Heat, Cool or Auto Modes:
If step #24 (page 14.3) is programmed for Override, then

Random Start will lockout all outputs of the thermostat for a
random amount of time when a Dry Contact closure occurs
(depending on step #23, page 14.2). This delay helps to keep
multiple thermostats from energizing their outputs each time the
Dry Contact is used.

14

Page 14.5

SECTION 15

Programming Run-Time AlertsProgramming Run-Time Alerts

Section 15 Contents:

Setting and Resetting the
Service Filter (Fan Run-Time)

Alert........................................15.2

Setting and Resetting the UV

Light Run-Time Alert.............15.3

Setting and Resetting the

Humidify Run-Time Alert......15.4

15

Page 15.1

How to Set and Reset the Service Filter

How to Set and Reset the Service Filter

(Fan Run-Time) Alert

(Fan Run-Time) Alert

This counter keeps track of the number of hours of fan run-time
whether the fan is energized in the Heating or Cooling modes, or in
stand alone fan operation. The Service Filter icon will appear after the
preset number of hours of fan run-time in step #28 (below) has been
achieved. Setting this counter to zero in step #28 will prevent the
Service Filter icon from ever appearing.

RESET
FILTER

Press

FAN

15

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the RESET FILTER button
to enter this setup screen.

Hours the fan has
run since last reset

Reset the counter to 0 to
remove the Service Filter
icon from the display.

Adjust the number of
hours, in increments of
50, the fan will run
before the Service
Filter icon appears on
the display. 0 = off.

(0 - 1950 hours)

pressed, the display will leave the setup screens after 30 seconds.

0

Service Filter

0

Service Filter

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Setup

27

Setup

28

Press

MODE

Press

HUMIDITY

Page 15.2

How to Set and Reset the UV Light

How to Set and Reset the UV Light

Run-Time Alert

Run-Time Alert

This counter keeps track of the number of days since the UV Light
counter has been reset. The UV Light icon will appear after the
number of days has been achieved, as shown in step #29 (below).
Setting the counter to zero in Step #29 will prevent the Service UV
Light icon from ever appearing.

MODE

HUMIDITY

MODE

Press

FAN

MODE

Press the HUMIDITY button to leave the Setup screens. If no buttons are

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Days since the UV Light
icon has been reset

Reset the counter to 0 to
remove the Service UV
Light icon from the display.

Press the MODE button repeatedly
until this setup screen appears.

Adjust the number of days
in increments of 10 before
the UV Light icon appears
on the display. 0 = off.

(0 - 1990 days)

pressed, the display will leave the setup screens after 30 seconds.

Service

Service

0

UV Light

0

UV Light

Page 15.3

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Setup

I3

Setup

29

15

Press

HUMIDITY

How to Set and Reset the Humidifier

How to Set and Reset the Humidifier

Run-Time Alert

Run-Time Alert

This counter keeps track of the number of days since the Service
Humidify icon was last reset; this icon will appear after the number of
days set in step #30 (below) has elapsed. Setting this counter to zero
in step #30 will prevent the Service Humidify icon from ever appearing.

Press the MODE button. While holding
the MODE, press the HUMIDITY button
to enter Setup screens.

Press the MODE button repeatedly
until this setup screen appears.

Days since the last reset
of the Service Humidify
counter.

Reset the counter to 0 to
remove the Service Humidify
icon from the display.

Press the MODE button repeatedly
until this setup screen appears.

Service

Note: Press the MODE
button momentarily
to move through the
setup screens. Press
and hold the MODE
button to move back­wards through the
setup screens.

Humidify

Setup

I2

0

HUMIDITY

Press

FAN

15

MODE

MODE

MODE

Adjust the number of days
in increments of 10 before
the Service Humidify icon
appears.
0 = Off

(0 - 1990 days)

Press the HUMIDITY button to leave the Setup screens. If no buttons are

pressed, the display will leave the setup screens after 30 seconds.

Service

0

Humidify

Setup

30

The humidifier run-time alert does not take the place of
any humidifier manufacturer’s recommended maintenance
plan; it only serves as a helpful reminder.

Page 15.4

Press

HUMIDITY

SECTION 16

Configuring the MISC OutputsConfiguring the MISC Outputs

Section 16 Contents:

Configuring the Jumpers........16.2

Explanation of Jumper

Settings..................................16.3

16

Page 16.1

Configuring the JumpersConfiguring the Jumpers

For additional flexibility, your thermostat has three configurable
outputs. These outputs are designed to have different functions
depending on how the jumpers are set (below).
Each output, labeled MISC1, MISC2, and MISC3 may be set for one
of the four choices available.
In the diagram below, the MISC3 jumper has been set for HUM*
(humidification) operation, the MISC2 jumper has been set for
DEHUM* (dehumidification) operation, and the MISC1 jumper has
been set for Y2 (second stage cooling) operation.

(FAN)

ELEC

GAS

HP

HUM

DEHUM

ECON

Y2

(MISC1

MISC3 MISC2 MISC1

ONLY)

W1

Y1

G

MISC2

CK1

CKGND

R

C

INSTALL HUMIDITY

MODULE WITH SENSING

ELEMENT OUTWARD

16

CAUTION

NEVER PUT MORE THAN

ONE JUMPER ON THE SAME

MISC JUMPER BLOCK!

DOING SO MAY DAMAGE

YOUR THERMOSTAT.

GAS

B

O

W2

MISC1

HUM

NO HUM

RS2

MISC3

RS+5

Z

2

8

4

6

X

Rs1

1

RSGND

1

Y

3

579

HUM

DEHUM

ECON

MISC3 MISC2 MISC1

*The Humidity Module (sold separately)
must be installed to operate a humid­ ification and/or dehumidification system.

MISC3

MISC3

Y2

(MISC1

ONLY)

Page 16.2

Explanation of Jumper Settings Explanation of Jumper Settings

HUM JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw
terminal on the backplate will control a humidification system.

HUMIDIFICATION OPERATION - SECTION 8

If your HVAC unit is equipped with a humidification system and the Humidity
Module (sold separately) has been installed, the thermostat will provide power
to the MISC1, MISC2, or MISC3 terminal of the thermostat when the humidity in
the home falls below the humidity setpoint you have chosen. The value for this
setpoint ranges from 0% to 60%. If no humidity is desired or if a humidification
system has not been installed, set the value to 0%.

DEHUM JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw
terminal on the backplate will be connected to the dehumidification terminal of a furnace board.
NOTE: Not all furnaces have a dehumidification terminal.

DEHUMIDIFICATION OPERATION - SECTION 9

If your HVAC unit is equipped with a dehumidification system the thermostat will
operate in one of two ways.

1) Normally Closed (NC): The thermostat will de-energize the MISC1, MISC2,
or MISC3 terminal of the thermostat (this MISC terminal is connected
to the DEHUM terminal on your furnace) to allow the fan to run in low
speed when the humidity in the home is above the dehumidify setpoint you
have chosen and there is a call for 1st stage cooling.

2) Normally Open (NO):
MISC3 terminal of the thermostat (this MISC terminal is connected to the
DEHUM terminal on your furnace) to allow the fan to run in low speed when
the humidity in the home is above the dehumidify setpoint you have chosen
and there is a call for 1st stage cooling.

The thermostat will energize the MISC1, MISC2, or

16

Page 16.3

Explanation of Jumper Settings (continued)Explanation of Jumper Settings (continued)

Y2 JUMPER SETTING

If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate will control a
second stage of cooling.

Y2 OPERATION - SECTION 12.4

The 2nd Stage of heat or cool is
(A) The 1st Stage has been on for the two minutes.

And

(B) The temperature spread
than: the setpoint

12.5), plus two degrees.

TEMPERATURE

16

turned on when:

from the setpoint is equal to or greater

plus the 1st stage deadband (step #19, page

Cooling

DeadbandDeadband

db 1 db 2

(adj. 0-10 )(adj. 1-6 )

Cool

Setpoint

1st Stage

INCREASE

turn on

2nd Stage

turn on

Page 16.4

SECTION 17

Factory Defaults, Calibration, and SensorsFactory Defaults, Calibration, and Sensors

Section 17 Contents:

Resetting the Thermostat to the

Factory Default Settings........17.2

Calibrating the Temperature

and Humidity Sensors...........17.3

17

Page 17.1

Resetting the Thermostat to the

Resetting the Thermostat to the

Factory Default Settings (for default values see page 19.1)

Factory Default Settings (for default values see page 19.1)

If, for any reason, you desire to return all the stored settings back to
the factory default settings, follow the instructions below.

WARNING: This will reset all Advanced Programming to the
default settings. Any information entered prior to this reset may
be permanently lost.

17

MODE

MODE

FAN

FAN

MODE

Place the thermostat in the
OFF mode.

Press and hold the MODE
button. While holding the
MODE button, press and hold
the FAN button for 5 seconds.
All icons will appear on the
display.

After all of the icons appear,
release the MODE and FAN
buttons. Then press and hold
the FAN button for 5 seconds.

After the letters Fd appear on
the display (Factory Default),
release the FAN button. Press
the MODE button once to
return to normal operation.

Page 17.2

OFF

Service Filter

Pan UV Light

AUTO
OFFON

Override

FanOn

OFF

72

DeHumidify

I88

72

Setup

88

COOL

Outside

Remote

AUXHEAT

88

Calibrating the Temperature and Humidity SensorsCalibrating the Temperature and Humidity Sensors

Under normal circumstances it will not be necessary to adjust the
calibration of the temperature and humidity sensors. If calibration is
required, please contact a trained HVAC technician to correctly
perform the following procedure.

Pm

I2:00

Su

OFF

MODE

Place the thermostat in the
OFF mode.

72

MODE

FAN

PRESS

TWICE

Press the MODE button once. The

MODE

remote sensor temperature will be
displayed and may be calibrated using the
UP or DOWN buttons. If a remote sensor
is not installed, only dashes will appear.

Press the MODE button once. The

MODE

relative humidity at the thermostat will be
displayed and may be calibrated using the
UP or DOWN buttons.

After calibration is complete, press the MODE button once to return to
normal operation.

Press and hold the MODE

button. While holding the
MODE button, press and hold
the FAN button for 5 seconds.
All icons will appear on the
display.

THERMOSTAT SENSOR

Press the UP and DOWN buttons
at the same time twice. The
thermostat temperature will be
displayed and may be calibrated
using the UP or DOWN buttons.

REMOTE SENSOR

HUMIDITY SENSOR

Service Filter

Pan UV Light

AUTO
OFFON

Override

FanOn

I88

Page 17.3

DeHumidify

Remote

Setup

88

COOL

Outside

Remote

AUXHEAT

88

CALIBRATE

CALIBRATE

CALIBRATE

17

SECTION 18

AccessoriesAccessories

ACCESSORY PORT - The RJ11 Jack is used to connect the
P374-2700 to the IR Receiver P/N P374-0431 for wireless
communication or the EZ Programmer P/N P374-0432 for
easy downloading or uploading of thermostat information.

The Accessory Port is located on
the bottom of the thermostat.

RJ11 Type Jack

IR RECEIVER / REMOTE CONTROL (optional accessory) - When the
IR Receiver is connected, the thermostat can be controlled using
an IR Remote Control. The thermostat may also interface with
other wireless systems in your home. For more information see the
instruction sheet for the IR Receiver P/N P374-0431.

EZ PROGRAMMER (optional accessory) - When the EZ
is connected, the thermostat Time Period
Advanced Setup Programming can be stored into

Programmer’s

memory. This information can then be uploaded to
other P374-2700 thermostats.
instruction sheet for the EZ Programmer P/N P374-0432.

For more information see the

Programmer

Programming and

the EZ

18

Page 18.1

SECTION 19

Advanced Setup TableAdvanced Setup Table

Pg#

Description

Step#

1

Auto-Changeover
Thermostat

2

Fan Off Delay

3

Thermoglow
Backlight

4

F or C

5

Security Level

6

Max Heat Setpoint

7

Min Cool Setpoint

8

Cool to Dehumidify

9

Maximum Dehum
Overshoot

10

DEHUM Terminal
Polarity

11

Override Run-Time

12

Reset Service
Humidify Icon

13

Reset UV Light Icon

14

Heatpump Jumper
Setting

15

Reversing Valve
Jumper Setting

16

Electric Heat

*Df = Factory Default Setting

10.2

10.3

10.5

11.2

11.2

11.3

Range

Df*

3.2

Yes/No

0, 30, 60,

6.3

90
Auto/On/

7.2

Off
F/C

7.2

0 - 3

7.4

35 - 99

7.4

35 - 99

7.4

On/Off

9.4

0 - 5

9.4

NO/NC

9.5

read only
read only

read only
read only

read only

read only

Yes

0

Au­to
F
0
80
55
Off
3

NC

- -

- -

- -

- -

- -

- -

Step#

17

18
19

20

21

22

23
24

25
26
27

28

29

30

12.2

12.3

12.5

12.6

13.3

14.2

14.2

14.3

14.4

14.4

15.2

15.2

15.3

15.4

Range

0 - 6

d1, d 2-6
1 - 6

On/Off

Yes/No

Yes/No

NO/NC
Override/
Service
Pan
35 - 99
35 - 99
read only

0 - 1950

0 - 1990

0 - 1990

Pg#

Description

Minimum Heat/Cool
Differential
Cycles Per Hour
Deadband/Temp.
Swing 1st Stage
2nd Stage turn off at
setpoint
Thermostat control
to RS1?
Dry Contact
Operation
Dry Contact Polarity
Dry Contact
Programming

Unoccupied Cool
Unoccupied Heat
Reset Service Filter
Icon
Service Filter Run
Time Set
UV Light Run-Time
Set
Service Humidify
Run-Time Set

Df*

2

6
2

On

Yes

No

NO
Ove
rride

85
55

- -

0

0

0

19

Page 19.1

SECTION 20

Index Index

A

Accessory Port, 18.1
Alerts
see Run-Time
Auto
adjust temperature,

1.4, 3.5
changeover, 3.4,

19.1
differential, see

Differential
fan, 6.2

icon, 2.3
lockout, 3.2
mode, 1.2

AuxHeat icon, 2.4

b reversing valve, 12.2
Buttons

down, 2.2, 7.3,

11.4
fan, 1.3, 2.2, 6.2,

11.4, 17.2
front panel, 2.2
humidity, 2.2, 4.3,

7.3, 8.3
mode, 1.2, 2.2, 7.3,

17.2

B

outside, 2.2, 4.2
Override, 2.2, 5.1
Reset Filter, 2.2, 15.2
up, 1.2, 2.2, 7.3,

11.4

C

C, 7.2, 19.1
Calibration, 17.3
Celsius, 7.2
Compressor Lockout,

12.3
Cool

1st stage
deadband, see

Deadband

dehum, 9.5
2nd stage
deadband, see

Deadband

dehum, 9.5
turn off
temperature,

12.6, 19.1
Y2 operation,

16.5
deadband, see

Deadband
droop, see Deadband

electric/heat pump,

11.2

icon, 2.3

Page 20.1

indicator, 2.2
mode, 1.2
run-time, see Run-Time
setpoint, 1.2-1.3
to dehumidify, see
Dehumidify

Condensate Drain Pan,

2.4, 14.3
Cycles Per Hour, 12.3,

19.1

D

Deadband

1st stage, 12.4-12.5,

12.6, 16.4, 19.1
2nd stage, 12.4, 12.6

Dehumidify

cool to, 9.3, 19.1
DEHUM jumper,

9.2
icon, 2.4
setpoint, 9.2

Delay

fan-off, see Fan

Differential

heat and cool, 12.2,

19.1
humidify and
dehumidify, 8.3,

9.2

Disabled Keypad

see Keypad Lockout

SECTION 20

Index Index

Drain Pan Overflow
Alarm, see Dry Contact
Dry Contact

override, 14.3, 19.1
operation, 14.2,

19.1
polarity, 14.2, 19.1
random start, 14.5
service pan, 14.3

E

EH, 11.4
Electric Heating
AuxHeat icon, 2.4

jumper setting, 11.3

19.1

Emergency Heat,

11.4
EZ Programmer, 18.1

F

F, 7.2, 19.1
Factory Defaults

caution, ii
settings, 17.2
resetting, 17.2

Fahrenheit, 7.2
Fan,

button function, see

Buttons

off time delay, 6.3,

19.1

on during heat, see
Electric Heat

on icon, 1.3, 2.4, 6.2

run-time, 15.2

2nd stage heat, see
Emergency Heat
speed, see
Dehumidify

unoccupied, 6.2

Fd, 17.2
Flashing Selection,1.2

G

Gas Furnace

control the fan, 11.3
jumper, 11.2

Green Indicator, 2.2

H

Heat

1st stage
deadband, see

Deadband

emergency heat,

11.4
2nd stage

Page 20.2

deadband, see
Deadband

emergency heat,

11.4
electric strip heat,

2.4
AuxHeat icon, 2.4
deadband, see

Deadband
droop, see Deadband

electric/heat pump,

11.2

icon, 2.3
indicator, 2.2
Mode, 1.2

run-time, see Run­ Time
setpoint, 1.2-1.3

Heat Pump

AuxHeat, 2.4
emergency heat,

11.4
jumper setting, 11.2

Humidify

icon, 2.4
service, 10.5, 15.4,

19.1
setpoint, 8.3

Humidity Module

connector, 8.2
installation, 8.2
jumper setting, 8.2
required for, 4.3,

8.1, 8.3, 9.1-9.3,

16.4, 17.3

SECTION 20

Index Index

see Display

I

IR Receiver, 18.1
IR Remote Control,

18.1

J

Jumpers

DEHUM, 16.3
ECON, 16.3
ELEC, 11.3
electric heat, 11.3
gas electric, 11.2
heat pump, 11.2, 19.1
HUM, 8.2, 16.2-16.3
reversing valve, 11.2,

19.1
Y2, 16.2-16.3

K

Keypad Lockout, 2.4,

7.3

Locked Indication

see Keypad Lockout

Manual

changeover, 3.3
cool, 3.2
heat, 3.2

MISC
jumper, see Jumpers

output, 16.2-16.3

Mode icon, 1.2, 2.3
Multi-stage
Operation, 12.4

Non-Programmable
Thermostat, 3.3-3.4
Normally
Open/Closed,
dry contact, 14.2

dehum terminal,

9.5

L

LCD

O Reversing Valve,

M

N

O

Page 20.3

12.2

Off Mode, 1.2, 2.3
Outdoor,

see Outside

Outside

button, see Buttons
icon, 2.3
sensor, 2.3, 4.2, 12.1-

12.2, 13.2, 17.3

viewing temperature,

2.3, 4.2, 13.2, 17.3

Override

button, see Buttons
icon, 2.3
timer, 5.1
viewing run-time,

10.2, 19.1

P

Pan, Service
see Dry Contact
Polarity, see Dry Contact

R

Random Start, 14.5
Red Indicator, 2.2
Remote Sensor

calibrate, 17.3
control to, 13.3-

SECTION 20

Index Index

13.4, 17.1
degree icon blink,

13.2-13.3
icon, 2.4
outside temperature,

see Outside

read to, 13.3
wiring, 13.2

RS1, see Remote
Sensor
RS2, see Outside
Sensor

Run-Time

resetting, 15.2-15.4
setting,
humidifier, 15.4,

19.1
service filter, 15.2,

19.1
UV light, 15.3, 19.1
viewing,
Override, 10.2
UV light, 10.4

S

2nd stage turn off
temperature,

12.6, 19.1
Security

level, 7.4, 19.1
setpoints, 7.4, 19.1

Sensor

outside, see Outside

remote, see Remote
thermostat, see

Thermostat

Service
filter icon, 15.2
humidify icon, 15.4
pan icon, see Dry
Contact
UV light, 15.3
Setpoint
cool, see Cool
dehumidification,

8.4,

9.3, 9.5
heat, see Heat
humidification, 4.3,

8.4, 9.3
security, 7.4
unoccupied, 5.1

Setup Icon, 2.4
Simplest Operation,

3.2
Smart Fan, 6.2
Smart Recovery, see

Energy Save

T

Terminal, MISC, see

MISC

Thermostat Sensor

Page 20.4

calibrate, 17.3
Time Delay,
compressor lockout,

12.3
cycles per hour,

12.3, 19.1

U

Unoccupied

icon, 2.3
operation, 5.1
override, see

Override

setpoints, 14.4

UV Light

icon, 2.4
resetting, 15.3
run-time, 15.3
setting, 15.3

W

Warranty, 26.1
W3, see Jumpers

Y

Y2, see Jumpers

Section 21

WarrantyWarranty

Five-Year Warranty - This Product is warranted to be free from defects in material and
workmanship. If it appears within five year from the date of original installation, whether or not
actual use begins on that date, that the product does not meet this warranty, a new or
remanufactured part, at the manufacturer’s sole option to replace any defective part, will be
provided without charge for the part itself provided the defective part is returned to the
distributor through a qualified servicing dealer.

THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing,
repairing, removing, installing, shipping, servicing or handling of either defective parts or
replacement parts. Such costs may be covered by a separate warranty provided by the installer.

THIS WARRANTY APPLIES ONLY TO PRODUCTS IN THEIR ORIGINAL INSTALLATION
LOCATION AND BECOMES VOID UPON REINSTALLATION.

LIMITATIONS OF WARRANTIES – ALL IMPLIED WARRANTIES (INCLUDING IMPLIED
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY) ARE
HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH THE LIMITED WARRANTY
IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED
WARRANTY LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE EXPRESSED
WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED,
ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON
WHATSOEVER.
ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING
NORMAL WORKING HOURS. ALL REPLACEMENT PARTS, WHETHER NEW OR
REMANUFACTURED, ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING
TIME PERIOD OF THIS WARRANTY.

1. Normal maintenance as outlined in the installation and servicing instructions or owner’s
manual, including filter cleaning and/or replacement and lubrication.

2. Damage or repairs required as a consequence of faulty installation, misapplication, abuse,
improper servicing, unauthorized alteration or improper operation.

3. Failure to start due to voltage conditions, blown fuses, open circuit breakers or other
damages due to the inadequacy or interruption of electrical service.

4. Damage as a result of floods, winds, fires, lightning, accidents, corrosive environments or
other conditions beyond the control of the Manufacturer.

5. Parts not supplied or designated by the Manufacturer, or damages resulting from their use.

6. Manufacturer products installed outside the continental U.S.A., Alaska, Hawaii, and
Canada.

7. Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever
including additional or unusual use of supplemental electric heat.

8. ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL
DAMAGE OF ANY NATURE WHATSOEVER. Some states do not allow the exclusion of
incidental or consequential damages, so the above may not apply to you.

This warranty gives you specific legal rights and you may also have other rights which may vary
from state to state.

THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR:

Page 21.1

P/N 88-502 Rev. 5