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
Page 2
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
Page 3
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
Page 4
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
Page 5
Page 6
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
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
Page 8
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
Page 9
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
Page 10
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
Page 11
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
FANMODEOUTSIDE
RESET
FILTER
[]
Cooler Button sometimes refer-
(glows blue) red to as the
DOWN button
OVER
RIDE
[]
HUMIDITY
FANMODE
Page 2.2
OUTSIDE
RESET
FILTER
Page 12
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
Page 13
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
Page 14
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
Page 15
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
Page 16
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
Page 17
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
Page 18
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
Page 19
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
Page 20
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
Page 21
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
Page 22
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
Page 23
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
Page 24
SECTION 6
Programming the Fan OperationProgramming the Fan Operation
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
Page 26
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.
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
Page 29
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
Page 30
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
Page 31
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
Page 32
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
MODULEWITHSENSING
2
4
INSTALLHUMIDITY
ELEMENTOUTWARD
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.
Page 33
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 MISC2MISC1
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 MISC2MISC1
W1
Y1
G
R
C
MISC1
OK
Y2
(MISC1
ONLY)
INSTALLHUMIDITY
MODULEWITHSENSING
ELEMENTOUTWARD
Page 8.3
Page 34
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
Page 35
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
Page 36
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
INSTALLHUMIDITY
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)
MODULEWITHSENSING
ELEMENTOUTWARD
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
Page 37
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
Page 38
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
Page 39
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.
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
Page 42
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
Page 43
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
Page 44
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
Page 45
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
Page 46
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
Page 47
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
Page 48
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
Page 49
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
Page 50
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
Page 51
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
DeadbandDeadbandDeadbandDeadband
1st Stage
turn on
turn on
DECREASEINCREASE
turned on when:
from the setpoint is equal to or greater
Cooling
db 1db 1db 2db 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
Page 52
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
Page 53
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.
Controlling or Reading the
Remote Temperature (RS1)...13.3
Page 13.1
13
Page 55
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.
RS1RS2
W1/O/B
MISC2
CKGND
Y1
G
CK1
R
C
RS-GND
RS
RSRS
Page 13.2
Page 56
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
Page 57
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
Page 58
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
Page 59
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.
OverrideService 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
Page 60
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
Page 61
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.
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
Page 63
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
Page 64
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
Page 65
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
Page 66
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
Page 67
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
INSTALLHUMIDITY
MODULEWITHSENSING
ELEMENTOUTWARD
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
Page 68
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
Page 69
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 1db 2
(adj. 0-10 )(adj. 1-6 )
Cool
Setpoint
1st Stage
INCREASE
turn on
2nd Stage
turn on
Page 16.4
Page 70
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
Page 71
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
Page 72
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
Page 73
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
Page 74
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
Page 75
SECTION 20
Index Index
A
Accessory Port, 18.1
Alerts
see Run-Time
Auto
adjust temperature,
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
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