Venstar T1900 User Manual

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Page 1

Digital

Thermostat

residential

THERMOSTAT

900

7-DAY

PROGRAMMABLE

up to

& 2-cool

3-heat

& 2-cool

HEAT COOL

with HUMIDITY

CONTROL

Dry Contact Equipped Outdoor Sensor Ready with

Control up to 3 Heat & 2 Cool Stages 3 Configurable Outputs Adjustable 2nd & 3rd Stage Timers & Deadbands Backlit Display & Button Legends Aux Heat Indicator

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

OWNER’S

MANUAL

Venstar Inc. 08/07

High/Low Readouts for the Day Equipped with Optional Humidity Module: Controls Humidification, Dehumidification and Reheat Programmable Output Accepts EZ Programmer Accepts Optional IR Remote Control Accepts Comfort Call Phone Control Accessory

MANUAL

HEAT PUMP

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 AND VOID YOUR WARRANTY.

MISC3

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 T1900

Tested to Comply

with FCC Standards

4Z95

FOR HOME OR OFFICE USE

MISC3

Page i

Page 3

How to Use This Manual

The Table of Contents divides the thermostat features into sections

The first page of each section contains a more detailed Contents of each

SECTION 14

Timers and Deadbands

making it easier to quickly find information.

section, such as the example page shown below.

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

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 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, 2nd stage cooling, 3rd stage heating, and a programmable output. 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, Program On). Non-Programmable Thermostat: A thermostat that does not have the capability of running the Time Period Programming. Programmable Thermostat: A thermostat that has the capability of running the Time Period Programming. Reheat: Running the cooling and 2nd stage strip heaters at the same time in order to dehumidify the air without cooling down the room temperature.

Temperature Swing: Same as Deadband. Time Period Programming: A program that allows the

thermostat to automatically adjust the heat setpoint and/or the cool setpoint based on the time of day.

Page iii

Page 5

Page 6

Table of Contents

Page iv

Getting to Know Your Thermostat

Quick Start

Setting Clock and Day

Basic Operation

Viewing Outdoor and Remote Temperature and Humidity

Programming the Daily Schedule Programming the Fan Operation

Thermostat Display Options

Humidification

Dehumidification

Viewing Equipment Run-Times Electric Heat and Heat Pump Operation

Dual Fuel Operation

Timers and Deadbands

Using the Programmable Output

Programming Remote Sensor Operation

Dry Contact Operation

Energy Save Operation

Programming the Run Time Alerts

Programming the Vacation Mode Configuring the MISC Outputs

Factory Defaults and Calibration

Accessories

Advanced Setup Table

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Page 7

SECTION 1

Getting to Know Your Thermostat

Section 1 Contents:

Front Panel Buttons.....................1.2

Display Features...........................1.3

Page 1.1

Page 8

Front Panel

Backlit LCD Display

I2:00

AUTO

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

QUICK RELEASE FOR ACCESSORY PORT

(pg. 23.1)

OUTDOOR

FAN

PLATINUM

COMMERCIAL PROGRAMMABLE THERMOSTAT

I2:00

AUTO

COOL

HEAT

Mode Button

eries

FAN

HUMIDITY

OUTDOOR

HUMIDITY

Page 1.2

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

COOL

HEAT

PROGRAM SET CLOCK

VACATION

PROGRAM

[ ]

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

DOWN button

MODE

[ ]

SET CLOCK

VACATION

Page 9

111

Display Features

Program On

I8:88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

AUTO OFFON

Morning DayNight Evening

FanOn

Mode Indicators 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. PROGRAM ON - Indicates the time period program is enabled to run.

Clock with Day of the Week - Section 3 Indicates the current time and day. This clock is also used to program the time period schedules.

Room Temperature Display - Section 5 Indicates the current room temperature and displays the outdoor temperature when selected.

Desired Set Temperature - Section 4/5 Indicates desired room temperature(s). Also displays the highest and lowest temperatures for the day.

Outside icon - Section 5 Indicates the temperature displayed is from the optional outdoor sensor.

StartStop

DeHumidify

I88

Section 4

Page 1.3

Setup

COOL

Outside

Vacation

AUXHEAT

Page 10

Display Features

Program On

I8:88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

AUTO OFFON

Morning DayNight Evening

FanOn

Morning, Day, Evening & Night icons - Section 6

Indicates the day part of the time period program.

Setup icon Indicates the thermostat is in the setup mode.

Fan On icon - Section 7 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 19 Appears when the filter should be serviced under normal conditions. Adjustable from 0 - 1950 hours of blower operation.

icon - Section 8 Indicates the keypad has been locked.

StartStop icon - Section 6 Appears when programming timer functions.

UV Light icon - Section 19 Appears when the UV bulb should be serviced under normal conditions. Adjustable from 0 - 1990 days of operation.

StartStop

DeHumidify

I88

Sections 6-19

Page 1.4

Setup

COOL

Outside

Vacation

AUXHEAT

Page 11

Display Features

I8:88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

AUTO

OFFON

Morning DayNight Evening

FanOn

Program On

Am Pm

StartStop

DeHumidify

Setup

AUXHEAT

I88

COOL

Outside

Vacation

Vacation icon Indicates the thermostat has Vacation setpoints in use.

AuxHeat icon - Page 14.4 Indicates 2nd stage electric strip heat is being used when the thermostat is programmed for Heat Pump operation. Only the Aux icon will appear during Cool to Dehumidify to indicate Reheat operation.

Humidify/DeHumidify icon - Sections 9-10 Indicates the system is currently humidifying/dehumidifying the air.

Lo icon - Section 5 Indicates the lowest recorded outdoor temperature for the day.

Hi icon - Section 5 Indicates the highest recorded outdoor temperature for the day.

Service Pan icon - Section 17 Indicates that a sensor (optional accessory) has detected the condensate drain pan is full and the compressor (Y1) has been locked out.

Section 20

Page 1.5

Page 12

SECTION 2

Quick Start

Section 2 Contents:

Setting the Clock and Day...........2.2

Selecting the Heat or Cool

Mode............................................2.3

Selecting Your Desired

Temperature................................2.4

Using the Fan Button...................2.4

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 2.1

Page 13

GRAM SET CLOCK

VACATION

Press the SET CLOCK button

Setting the Clock

I2:00

Setup

During Setup &

Programming:

Pressing the UP or DOWN buttons will modify the flashing selection.

To adjust the

Clock or Day use

Setting the Day

Press the SET CLOCK button to return to normal operation.

Setup

GRAM SET CLOCK

VACATION

Page 2.2

Press

MODE

To adjust the time by hours press and hold the FAN button while pressing the UP or DOWN buttons.

Buttons.

Page 14

Selecting 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.

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.

I2:00

AUTO

Time Schedule for Heating or Cooling

The Program On setting will

activate the time period

programming for the cooling

or heating setpoint ONLY

(Morning, Day, Evening

& Night Periods).

OFF indicates both heating

Off

and air conditioning

systems are turned off.

I2:00

Day

I2:00

OFF

Program On

Page 2.3

HEAT

COOL

HEAT

COOL

HEAT

Press

MODE

Press

MODE

Press

MODE

Press

MODE

Page 15

Selecting Your Desired Temperature (adjusting the setpoints)

AUTO OR PROGRAM MODE

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

I2:00

AUTO

HEAT OR COOL MODE

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

I2:00

COOL

HEAT

COOL

Adjust the desired

set temperature with the

buttons.

Adjust the desired

set temperature with the

buttons.

Using the Fan Button

I2:00

AUTO

FanOn

COOL

HEAT

Press

FAN

Fan On indicates constant fan operation. You may turn the fan on even if the thermostat is in the Off mode. Pressing the FAN button toggles this feature on or off.

Page 2.4

Page 16

SECTION 3

Setting the Clock and Day

Section 3 Contents:

Setting the Clock..........................3.2

Setting the Day.............................3.2

Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection.

Page 3.1

Page 17

GRAM SET CLOCK

VACATION

Press the SET CLOCK button

Setting the Clock

I2:00

During Setup & Programming: Pressing the UP or DOWN buttons will modify the flashing selection.

Setup

To adjust the

Clock or Day use

Setting the Day

Press the SET CLOCK button to return to normal operation.

Setup

GRAM SET CLOCK

VACATION

Page 3.2

Press

MODE

To adjust the time by hours press and hold the FAN button while pressing the UP or DOWN buttons.

buttons.

Page 18

SECTION 4

Basic Operation

Section 4 Contents:

Programmable or Non-

Programmable Thermostat........4.2

Manual or Auto-Changeover

Thermostat..................................4.3

Selecting the Operating Mode....4.4

Selecting Your Desired

Temperature................................4.8

Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection.

Page 4.1

Page 19

Programmable or Non-Programmable Thermostat

When the very simplest operation is desired, this thermostat

may be configured to be non-programmable, with or without Auto Changeover. Follow the step below.

If ‘NO’ is selected, the thermostat will lockout the Program On screen; only the Off, Heat, Cool, and Auto screens may be accessed by pressing the MODE button.

Select ‘YES’ if you would like your thermostat to be programmable, then the Program mode will be accessible through the use of the MODE button.

Note: Press the MODE butto n momen taril y

MODE

PROGRAM

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

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

YES

Select Yes if you would like the thermostat to be programmable or No for non-programmable.

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

Program On

to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

Press

PROGRAM

Page 4.2

Page 20

Manual or Auto-Changeover Thermostat

When the very simplest operation is desired, this thermostat may be configured to be a manual heat and cool thermostat, with or without time period programmability. 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, Cool, and Program On screens to be accessed.

MODE

PROGRAM

MODE

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

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

Press the MODE button repeatedly until this setup screen appears.

YES

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 4.3

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

PROGRAM

Page 21

Operating Mode when the Thermostat is Configured to be:

NON-PROGRAMMABLE WITH MANUAL CHANGEOVER - If the thermostat is configured to be a non-programmable thermostat with

Manual 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.

The COOL setting indicates the

reach before the air conditioner

Cooling Only

temperature the room has to

will turn on to cool the room.

OFF indicates both heating

systems are turned off.

Off

and air conditioning

I2:00

OFF

HEAT

Press

MODE

COOL

Press

MODE

Page 4.4

Page 22

Operating Mode when the Thermostat is Configured to be:

NON-PROGRAMMABLE WITH AUTO CHANGEOVER - If the thermostat is configured to be a non-programmable thermostat with 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.

I2:00

AUTO

I2:00

OFF

HEAT

COOL

HEAT

Press

MODE

Press

MODE

Press

MODE

Page 4.5

Page 23

Operating Mode when the Thermostat is Configured to be:

PROGRAMMABLE WITH MANUAL CHANGEOVER - If the thermostat is configured to be a programmable thermostat with Manual 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.

Time Schedule for Heating Only

The HEAT Program On setting

will activate the time period

program for the heating

setpoint ONLY (Morning, Day,

Evening & Night Periods).

Time Schedule for Cooling Only

The COOL Program On setting

will activate the time period

program for the cooling

setpoint ONLY (Morning, Day,

Evening & Night Periods).

OFF indicates both heating

systems are turned off.

Off

and air conditioning

I2:00

Day

I2:00

Day

I2:00

OFF

Program On

HEAT

COOL

HEAT

COOL

Page 4.6

Press

MODE

Press

MODE

Press

MODE

Press

MODE

Page 24

Operating Mode when the Thermostat is Configured to be:

PROGRAMMABLE WITH AUTO CHANGEOVER - If the thermostat is configured to be a programmable thermostat with 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.

Time Schedule for Heating or Cooling

The Program On setting wil

activate the time period

programming for the cooling

or heating setpoint ONLY

(Morning, Day, Evening

& Night Periods).

OFF indicates both heating

Off

and air conditioning

systems are turned off.

I2:00

AUTO

I2:00

Day

I2:00

OFF

Program On

HEAT

COOL

HEAT

COOL

HEAT

Page 4.7

Press

MODE

Press

MODE

Press

MODE

Press

MODE

Page 25

Selecting Your Desired Temperature (adjusting setpoints)

AUTO OR PROGRAM MODE

Pressing the UP or DOWN buttons in Auto or Program modes will adjust both the heat and cool set temperatures

simultaneously. For more information on this see page 14.2.

Adjust the desired

I2:00

AUTO

HEAT OR COOL MODE

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

I2:00

COOL

HEAT

COOL

set temperature with the

buttons.

Adjust the desired

set temperature with the

buttons.

Page 4.8

Page 26

SECTION 5

Viewing the Temperature and Humidity Sensors

Section 5 Contents:

Viewing the Outdoor

Temperature..............................5.2

Viewing the Indoor

Humidity....................................5.3

Page 5.1

Page 27

Viewing the Outdoor Temperature (RS2)

This requires an outdoor sensor (optional accessory) to be installed (see page 16.2 for wiring instructions). To read the temperature from the outdoor sensor, press the OUTDOOR button. The display will then show the current outdoor temperature along with the highest and lowest temperatures for the day. The day starts at

12:00 am.

HUM

OUTDOOR

Press the OUTDOOR button.

The highest and lowest temperatures for the day will be displayed along with the current outdoor temperature. This reading is from the sensor connected to RS2.

This reading is from the sensor connected to RS1.

Outside

Press the OUTDOOR button to return to normal operation.

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

OUTDOOR

Page 5.2

HUM

High temperature for the day.

Current outdoor temperature.

Low temperature for the day.

Press

MODE

Page 28

Viewing the Indoor Humidity

To display the current humidity measured at the thermostat, press the HUMIDITY button of the thermostat. The display will then show the current indoor humidity along with the humidification setpoint

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

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

Humidify

Setup

Press

HUMIDITY

Page 5.3

Page 29

SECTION 6

Programming the Daily Schedule

Section 6 Contents:

Programming a Daily

Schedule...................................6.2

Page 6.1

Page 30

Programming a Daily Schedule

Press

PROGRAM

Press the PROGRAM button to enter time period programming.

Use the Programming Worksheet on the back cover to help with this section.

Select the day of week

(Mo - Su)

MODE

Adjust the start time for Morning.

Adjust the cooling setpoint for Morning.

(35 - 99 )

Adjust the heating setpoint for Morning.

(35 - 99 )

6:00

Morning

6:00

Morning

6:00

Morning

Page 6.2

Start

MODE

COOL

HEAT

Continued

MODE

Press

Page 31

Adjust the start time

8:00

for Day.

Day

Adjust the cooling setpoint for Day.

(35 - 99 )

Adjust the heating setpoint for Day.

(35 - 99 )

Adjust the start time for Evening.

8:00

Day

8:00

Day

6:00

Start

Press

MODE

Start

COOL

HEAT

Press

MODE

Press

MODE

Adjust the cooling setpoint for Evening.

(35 - 99 )

Evening

6:00

Evening

Page 6.3

Continued

Press

MODE

COOL

Press

MODE

Page 32

Adjust the heating setpoint for Evening.

(35 - 99 )

Adjust the start time for Night.

Adjust the cooling setpoint for Night.

(35 - 99 )

Adjust the heating setpoint for Night

(35 - 99 )

6:00

Evening

I0:00

Night

I0:00

Night

I0:00

Night

COOL

HEAT

Press

MODE

Start

Press

MODE

COOL

HEAT

Continued

Press

MODE

Press

MODE

Page 6.4

Page 33

The copy command becomes available after

programming the entire previous day.

Yes

Press

MODE

If No is selected, as in previous steps, flashing prompts for input will appear for the four time periods for the next day.

Press

PROGRAM

Select Yes to copy the previous day’s program to this day displayed.

If Yes is selected:

Selecting Yes, then pressing mode will copy the previous day’s program. If yes is selected again, or each time, this routine will repeat.

After programming for all seven days is complete, press the PROGRAM button to leave the Setup screens. If no buttons are pressed, the display will leave the setup screens after 30 seconds.

Page 6.5

If No is selected:

Press

MODE

Page 34

SECTION 7

Programming the Fan Operation

Section 7 Contents:

Using the Fan Button.................7.2

Programming the Fan................7.3

Setting the Fan-Off Time

Delay..........................................7.4

Page 7.1

Page 35

Using 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

I2:00

AUTO

FanOn

FAN

Fan On indicates constant fan

operation. You may turn the fan

COOL

on even if the thermostat is in the

Off mode. Pressing the FAN button

HEAT

toggles this feature on or off.

Page 7.2

Page 36

Programming the Fan

This timer will start the fan at the top of each hour and the fan will run for the number of minutes selected in step #3. Steps 4 & 5 restrict the hours during which the programmable fan may operate; step #4 is the start time and step #5 is the stop time. Selecting the same start and stop times will cause the fan to operate 24 hours a day.

MODE

PROGRAM

MODE

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

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

Press the MODE button repeatedly until this setup screen appears.

Start

Stop

Setup

Adjust the Programmable

0:00

Fan timer. 0 - 60 minutes. 0:00 = off

FanOn

Adjust the Programmable Fan start time. (step 4 appears only if step 3 is not 0:00)

Adjust the Programmable Fan stop time. (step 5 appears only if step 3 is not 0:00)

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

7:00

FanOn

9:00

OFF

FanOn

Page 7.3

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

MODE

Press

MODE

Press

PROGRAM

Page 37

Setting the Fan-Off Time Delay

To increase the 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.

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

:00

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

FanOn

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

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

Setup

Page 7.4

Press

PROGRAM

Page 38

SECTION 8

Thermostat Display Options

Section 8 Contents:

Turning On/Off the

Backlight...................................8.2

Programming the Thermostat to Display Temperature in

Fahrenheit or Celsius..............8.2

Locking/Unlocking the

Keypad......................................8.3

Page 8.1

Page 39

Turning On/Off the Backlight

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Select backlight operation: AUTO - Light from 6pm to 6am nightly.

ON - Light continuously. OFF - Light for 8 seconds

after a button press.

AUTO

Setup

Programming the Thermostat to Display Temperature in Fahrenheit or Celsius

Select thermostat operation in degrees Fahrenheit or Celsius.

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

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

Page 8.2

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

MODE

Press

PROGRAM

Page 40

Locking/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.

Press all three

buttons in the order

outlined above for

keypad lockout

MODE

I2:00

AUTO

COOL

HEAT

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

press and hold the MODE button. While

Page 8.3

Page 41

SECTION 9

Humidification

Section 9 Contents:

Configuring a Thermostat Output Jumper for Humidity

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

Adjusting the Humidification

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

Energizing the Fan with

Humidification..........................9.4

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 9.1

Page 42

Setting a Thermostat Output Jumper for 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 21.

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

(FAN)

ELEC

INSTALL HUMIDITY

GAS

MISC1

RS2

MISC3

RS+5

Rs1

RSGND

DEHUM

HUM

NO HUM

579

DEHUM

CKGND

PROG

MISC2

HUM

CK1

MISC3 MISC2 MISC1

(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

MISC3

Page 9.2

PROG

HUM

MISC3 MISC2 MISC1

AND VOID YOUR WARRANTY

(MISC1

ONLY)

Page 43

Adjusting the Humidification Setpoint

If your HVAC unit is equipped with a humidification system 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 Humidification Setup screens.

NOTE: Each step # is located at

the top right corner of the display for easy reference.

Current Room Humidity

Adjust the desired humidification setpoint

(0%-60%)

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

Setup

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 9.3

Page 44

Energizing the Fan with Humidification

Selecting YES for this setup step will enable the Fan to automatically energize any time there is a call for humidity. If NO is selected, the Fan will not automatically energize on a call for humidity.

MODE

PROGRAM

MODE

Step 9 only appears if the Humidification setpoint is not 0% (see page 9.3).

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

Press the MODE button repeatedly until this setup screen appears.

Select fan operation with a call for humidification: NO: Fan will not energize when there is a call for humidification.

YES: Fan will energize when there is a call for humidification.

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

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

FanOn

Humidify

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

PROGRAM

Page 9.4

Page 45

SECTION 10

Dehumidification

Section 10 Contents:

Configuring a Thermostat Output Jumper for Dehumidification

Operation................................10.2

Adjusting the Dehumidification

Setpoint...................................10.3

Using Your Air Conditioner

to Dehumidify.........................10.4

Using the Reheat

Function..................................10.5

Using the DEHUM

Terminal..................................10.6

Page 10.1

Page 46

Configuring a Thermostat Output Jumper for Dehumidification Operation

To control a MISC output for dehumidification, 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 dehumidification 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 21.

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

(FAN) ELEC

GAS

MISC1

HUM

NO HUM

RS2

MISC3

RS+5

Rs1

RSGND

579

PROG

DEHUM

CKGND

PROG

HUM

MISC2

CK1

MISC3 MISC2 MISC1

(MISC1 ONLY)

INSTALL HUMIDITY

MODULE WITH SENSING

ELEMENT OUTWARD

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

MISC3

Page 10.2

HUM

MISC3 MISC2 MISC1

AND VOID YOUR WARRANTY

(MISC1

ONLY)

Page 47

Adjusting the Dehumidification Setpoint

Dehum Terminal: If a MISC terminal selected for DEHUM operation (see page 10.2) 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 10.6 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. The thermostat may also be programmed for Reheat operation if available. See pages 10.4 and 10.5 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%.

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

Adjust the desired dehumidification setpoint

(25%-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

Press

HUMIDITY

Dehumidification Notes: Press the button to set the dehumidification setpoint to 99% for no dehumidification operation. This will lockout Advanced Setup steps 10, 11, and 12 (see pages

10.4 - 10.5).

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

Page 10.3

Page 48

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 setpoint, from

° °

0 to 5 (adjustable in step #11). For Example: If the cooling overshoot is

° °

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

PROGRAM

MODE

Steps 10 and 11 only appear if the Dehumidification setpoint is not 99% (see page 10.3).

Step 11 appears only if step 10 is set to “ON”

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

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

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

Press the MODE button repeatedly until this setup screen appears.

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.

° °

OFF

Page 10.4

DeHumidify

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

I i

COOL

PROGRAM

Press

MODE

Press

Page 49

Using the Reheat Function

This feature allows the thermostat to turn on Electric Heating (W2) during Cool to Dehumidify to maintain room temperature until the dehumidification setpoint is reached. The cooling cycle will allow for the dehumidification of the air to occur while the Electric Heating will allow for a constant room temperature. If Reheat is enabled the Aux icon will appear on the display during Cool to Dehumidify operation.

MODE

PROGRAM

MODE

Step 12 appears only if step 10 is set to “ON” and if the Dehumidification setpoint is not 99% (see page 10.3).

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

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

Press the MODE button repeatedly until this setup screen appears.

If Reheat operation is desired during the dehumidification process select On; otherwise select Off.

Off

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

OFF

Setup

DeHumidify

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

HEAT

Dehumidification Notes: Reheat is only available if Cool to Dehumidify has been set to ON in step #10 (see page 10.4).

Page 10.5

Press

PROGRAM

Page 50

Using 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 than the dehumidification setpoint.

MODE

PROGRAM

MODE

Press the PROGRAM 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 Dehumidification has been satisfied.

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

Press the MODE button repeatedly until this setup screen appears.

Normally Closed (NC) = DEHUM deenergized for low speed fan.

Normally Open (NO) = DEHUM energized for

low speed fan.

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

DeHumidify

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

PROGRAM

Page 10.6

Page 51

SECTION 11

Viewing Equipment Run-Times

Section 11 Contents:

Viewing the Heat

Run-Time.................................11.2

Viewing the Cool

Run-Time.................................11.3

Viewing the Humidifier

Run-Time................................ 11.4

Viewing the UV Light

Run-Time.................................11.5

Page 11.1

Page 52

Viewing the Heat Run-Time - Energy Watch

This display will track the number of hours that your heating system has been operating. Press the FAN button to reset the counter.

MODE

PROGRAM

MODE

Press

Energy Watch: This feature enables you to closely monitor your

energy usage by keeping track of the number of hours your

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

Press the MODE button repeatedly until this setup screen appears.

Counts the number of hours Heat has been running. Press FAN to reset the Energy Watch*

FAN

Heat counter.

(0 - 1999 hrs.)

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

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

Setup

HEAT

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

PROGRAM

heating system has been operating.

Page 11.2

Press

Page 53

Viewing the Cool Run-Time - Energy Watch

This display will track the number of hours that your cooling system has been operating. Press the FAN button to reset the counter.

MODE

PROGRAM

MODE

Press

FAN

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

Energy Watch: This feature enables you to closely monitor your

energy usage by keeping track of the number of hours your

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

Press the MODE button repeatedly until this setup screen appears.

Counts the number of hours Cool has been running. Press FAN to reset the Energy Watch* Cool counter.

(0 - 1999 hrs.)

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

Setup

COOL

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

cooling system has been operating.

Page 11.3

Press

PROGRAM

Page 54

Viewing the Humidification Run-Time

After your humidification system has been operating for the number of days set in step #16 below, the Service Humidify icon will appear. This counter keeps track of the number of days since the Service Humidify icon was reset.

MODE

PROGRAM

MODE

Press the MODE button. While holding the MODE, press the PROGRAM 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 PROGRAM button to leave the Setup screens. If no buttons are

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

Service

Humidify

Page 11.4

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

PROGRAM

Page 55

Viewing the UV Light Run-Time

After the UV light has been operating for the number of days set in step #17 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

PROGRAM

MODE

Press

FAN

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

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

Press the MODE button repeatedly until this setup screen appears.

Counts the number of days since the UV Light was last reset. Press FAN to reset the Service UV Light counter and remove the icon from the display.

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

Service

UV Light

Page 11.5

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

PROGRAM

Press

Page 56

SECTION 12

Electric Heat and Heat Pump Operation

Section 12 Contents:

Viewing the Heat Pump and Reversing Valve Jumper

Setting.....................................12.2

Viewing the Electric Heat

Jumper Setting.......................12.3

Using Emergency Heat............12.4

Page 12.1

Page 57

Viewing the Heat Pump and Reversing Valve Jumper Settings

Steps 18 and 19 are ‘Read Only’ and may only be set with the jumpers on the circuit board of the thermostat (see page 5.4 of the Installation Instructions).

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

ON = Heat Pump operation OFF = Gas Electric operation

OFF

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

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 PROGRAM button to leave the Setup screens. If no buttons are

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

Setup

Page 12.2

Press

MODE

Press

PROGRAM

Page 58

Viewing 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 20 is ‘Read Only’ and may only be set with the jumpers on the circuit board of the thermostat (see page 5.3 of the Installation Instructions).

MODE

PROGRAM

MODE

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

Press the MODE button. While holding the MODE, press the PROGRAM 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

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Press

PROGRAM

Page 12.3

Page 59

Using 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 the UP button. The Cool setpoint display will read ‘EH’ (emergency heat).

I2:00

Press for

Emergency Heat

FAN

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.

HEAT

Page 12.4

Page 60

SECTION 13

Dual Fuel Operation

Programming the Thermostat to Operate a Dual Fuel System

Advanced Setup step #21 (next page) allows this thermostat to be configured to control two heat sources for Dual Fuel operation.

Dual Fuel systems utilize an outdoor temperature sensor. When the outdoor temperature is at or below the Changeover Balance Point, step #22 (next page), the primary heat source is ‘locked out’ and the heat source connected to W3 is energized. There is a three degree deadband from the Changeover Balance Point, which requires the outdoor temperature to rise three degrees before switching back to the primary heat source. If an outdoor temperature sensor (RS2) is not installed and the thermostat is programmed for Dual Fuel operation, 1st and 2nd stage heating is locked out and only W3 will be energized (see page 13.3 for detailed information).

For outdoor sensor (RS2) wiring please see page 16.2 of this manual and for the thermostat jumper setting and wiring instructions please refer to page 5.6 of the Installation Instructions.

Page 13.1

Page 61

Programming the Thermostat to Operate a Dual Fuel System

MODE

PROGRAM

MODE

If the HP/GAS Jumper is not set for HP, then steps 21 and 22 will be unavailable (see Install Manual pg. 5.4).

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

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

Press the MODE button repeatedly until this setup screen appears.

Select Dual Fuel operation*, (On), or normal operation*, (Off).

Off

Adjust the Changeover Balance Point for the outdoor sensor** (RS2).

( 32 - 85 F, OF=no sensor)

( 0 - 30 C)

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

To see the outputs that will be energized in Dual Fuel or Normal operation, please see the next page.

In the case of Dual Fuel operation (Dual Fuel set to ‘ON’), an outdoor sensor is required.

OFF

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

2 i

Setup

Outside

Press

MODE

Press

PROGRAM

Page 13.2

Page 62

Output Matrix for Dual Fuel and Three Stage Heat Applications

This table illustrates the outputs that will be energized on a call for first, second and third stage heating, based on the programming in setup steps 21 and 22 (see previous page) and the HP/GAS jumper setting on page 12.2.

For example, in the first section of this matrix the thermostat has been programmed to operate a Heat Pump Dual Fuel system based on a Balance Point. The Outdoor Temp is warmer than the Balance Point (Outdoor Temp > Balance Point). This means that 1st stage heating will energize G and Y1, 2nd stage heating will energize W2 and 3rd stage heating (W3) is unavailable. The Reversing Valve may, or may not be energized, depending on how it has been programmed (see note).

DF = ON BP = ON HP = ON

DF = ON BP = N/A HP = ON

DF = ON BP = OFF HP = ON

DF = OFF BP = ON HP = ON

DF = N/A BP = N/A HP = OFF

*RVR = Reversing Valve. RVR will be energized depending on this jumper setting. See page 12.2 of this manual and page 5.4 of the Installation Instructions for detailed programming information.

*ELEC/GAS = Electric Heat or Gas Heat. The fan will be energized depending on this jumper setting. See page 12.3 of this manual and page 5.3 of the Installation Instructions for detailed programming information.

Dual Fuel Heat Pump with Balance Point: Outdoor Temp > Balance Point.

Dual Fuel Heat Pump with Balance Point. Outdoor Temp < Balance Point.

Dual Fuel Heat Pump with no Outdoor Sensor (Outdoor Sensor has failed).

Dual Fuel Heat Pump with Balance Point set to ‘OF’.

Heat Pump with three stages of heat with Balance Point. Outdoor Temp > Balance Point.

Heat Pump with three stages of heat with Balance Point. Outdoor Temp < Balance Point.

Non-Heat Pumps. Dual Fuel and Balance Point options are unavailable.

1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3

RVR

st nd rd

RVR

st nd rd

Page 13.3

ELEC/GAS

Page 63

SECTION 14

Timers and Deadbands

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

Page 14.1

Page 64

Adjusting 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

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Adjust the minimum difference between cooling & heating setpoints.

(0 - 6 )

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

COOL

HEAT

Press

PROGRAM

Press the PROGRAM button to leave the Setup screens. If no buttons

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

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. Press the MODE button until only the cool setpoint is displayed. Adjust the desired setpoint. Press the MODE button again to enter the Auto-Changeover mode where both the heat and cool setpoints are displayed.

Page 14.2

Page 65

Adjusting 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

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

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

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

(d1, d, 2 - 6)

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

Page 14.3

Setup

Press

PROGRAM

Page 66

Adjusting the Deadband

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

The 2nd Stage of heat or cool is (A) The 1st Stage has been on for the time required (step #28, page 14.6). It is adjustable from 0-60 minutes and the default is two minutes.

And

(B) The temperature spread from the setpoint is equal to or greater than: the setpoint plus the 1st stage deadband (step #25, next

page), plus the 2nd stage deadband (step #26, next page). This 2nd stage deadband is adjustable from 0-10 degrees and

the default is two degrees.

The 3rd Stage of Heat is turned on when:

(A) The 2nd stage has been on for the time required (step #29,

page 14.6). It is adjustable from 0-60 minutes and the default

is two minutes.

And (B) The temperature from the setpoint is equal to or greater

than: the setpoint plus the 1st stage deadband (step #25, next page), plus the 2nd stage deadband (step #26, next page) plus the 3rd stage deadband (step #27, next page). This 3rd stage deadband is adjustable from 0-10 degrees

and the default is two degrees.

Heating

Deadband Deadband DeadbandDeadbandDeadband

3rd Stage

turn on

2nd Stage

turn on

1st Stage

turn on

DECREASE INCREASE

The above figure assumes the minimum on time for the prior stage has been met to allow the next stage to turn on; once the deadbands have been exceeded.

turned on when:

db 1 db 1db 2 db 2db 3

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

Heat

Setpoint

TEMPERATURE

Cool

Setpoint

Page 14.4

Cooling

1st Stage

turn on

2nd Stage

turn on

Page 67

Adjusting the Deadband

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

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Adjust the deadband for the 1st stage.

(1 - 6 )

Adjust the deadband for the 2nd stage.

(0 - 10 )

Adjust the deadband for the 3rd stage.

(0 - 10 )

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

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

2 2

Page 14.5

Setup

Press

MODE

Press

MODE

Press

PROGRAM

Page 68

Adjusting the Minutes of Run-Time Before the Next Stage

For more detailed information, please see the explanation on page 14.4.

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Adjust the amount of time stage 1 must be on before stage 2 turns on.

(0 - 60 min.)

0:02

Adjust the amount of time stage 2 must be on before stage 3 turns on.

(0 - 60 min.)

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

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

0:02

Setup

Page 14.6

Press

MODE

Press

PROGRAM

Page 69

Selecting 2nd Stage Turn 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 deadband (

see page 14.4 for more

information).

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

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 PROGRAM button to leave the Setup screens. If no buttons are

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

OFF

Setup

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

PROGRAM

Page 14.7

Press

Page 70

SECTION 15

Using the Programmable Output

Section 15 Contents:

Configuring a Thermostat Output Jumper for Programmable

Output Operation....................15.2

Time-Based Control of the

Programmable Output...........15.3

Temperature-Based Control of

the Programmable Output.....15.6

Internet/Phone Control of the

Programmable Output...........15.7

Page 15.1

Page 71

Setting a Thermostat Jumper for Programmable Output Operation

To control one of the MISC outputs using time, temperature, or Internet/phone based operation, place the MISC1, or MISC2, or MISC3 jumper on the terminal labeled PROG (see diagram below). This extra output will supply 24VAC to the selected MISC terminal based on the programming described 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 21.

In the diagram below, the MISC1 jumper has been set for PROG operation.

(FAN)

ELEC

PROG

HUM

DEHUM

MISC2

CKGND

MISC3

MISC3 MISC2 MISC1

CK1

(MISC1 ONLY)

MODULE WITH SENSING

MISC3

INSTALL HUMIDITY

ELEMENT OUTWARD

GAS

MISC1

HUM

NO HUM

RS2

MISC3

RS+5

Rs1

RSGND

579

PROG

HUM

DEHUM

MISC3 MISC2 MISC1

IMPORTANT CAUTION

NEVER PUT MORE THAN ONE JUMPER

ON THE SAME MISC JUMPER BLOCK!

THIS MAY DAMAGE THE THERMOSTAT

AND VOID YOUR WARRANTY

(MISC1

ONLY)

Page 15.2

Page 72

Time-Based Control of the Programmable Output

To operate one of the MISC outputs using time-based operation, set Advanced Setup step #31 (below) for Time i8:88. This extra output

will supply 24VAC to the selected MISC terminal, which is especially useful for devices that require a start and stop time. Refer to page

14.4 - 14.5 for more details on programming this output.

Possible TIME scenarios:

1) An exterior lighting system that needs to be energized every day between the hours of 8pm and 1am.

2) A sprinkler system that needs to be energized every day between the hours of 2am and 4am.

MODE

PROGRAM

MODE

OFF Time = Temp = Aux

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

Press the MODE button repeatedly until this setup screen appears.

I8:88

Press the UP button to set the programmable output for time based operation. The digits in the clock area will appear.

I8:88

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

3 i

Continued on the next page

Press

MODE

Page 15.3

Page 73

Time-Based Control of the Programmable Output

Programmable Output Polarity:

NC = Normally Closed to turn off between the start and stop times in steps 35 and 36. NO = Normally Open to operate between the start and stop times in steps 35 and 36.

Setup

Press

MODE

7-Day

Select 7-Day or 1-Day Programming:

7-Day = Different program for each day. 1-Day = Same program

1-Day

every day.

If Step 33 is set for 1-Day, then Day of the Week and Copy functions do not appear or apply.

Select the day of the week

Adjust the programmable output start time for Monday.

(24 Hours)

Day

7:00

Page 15.4

Start

Setup

Continued on the next page

Press

MODE

Press

MODE

Press

MODE

Page 74

Time-Based Control of the Programmable Output

Stop

Setup

9:00

Adjust the programmable output stop time for Monday

If Step 33 is set for 1-Day, then Day of the Week and Copy functions do not appear or apply.

Yes

Select Yes to copy the previous day’s program to this day.

If Yes is selected:

Press

FAN

If No is selected, as in previous steps, flashing prompts for input will appear for the start and stop times for the next day.

Once configuration of the programmable output has been

Press

MODE

completed, press the MODE button to move on to the next setup step, or press the PROGRAM button to exit Advanced Setup.

Selecting Yes, then pressing FAN will copy the previous day’s program. If yes is selected each time, this routine will repeat.

Page 15.5

Press

MODE

If No is selected:

Page 75

Temperature-Based Control of the Programmable Output

To operate a MISC output using temperature-based operation, program advanced setup step #31 (below) for temperature 88 .

This extra output will supply 24VAC to the selected MISC terminal based on the temperature of RS1 and the setpoint in step #37 (below).

Possible TEMPERATURE scenario:

1) An exhaust fan in the attic of a store that needs to be energized when the attic temperature is above 85 degrees.

MODE

PROGRAM

MODE

OFF Time = Temp = Aux

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

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

Press the MODE button repeatedly until this setup screen appears.

I8:88

Press the UP button twice to set the programmable output for temperaturebased operation. The large temperature digits will appear.

Programmable Output Polarity: NC = Normally Closed to operate when the setpoint is less than the setpoint in step #36. NO = Normally Open to operate when the setpoint is equal to or greater than the setpoint in step #36.

Adjust the programmable output setpoint.

(35-125 )

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

Page 15.6

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

3 i

Setup

Press

MODE

Press

MODE

Press

PROGRAM

Page 76

Internet/Phone Control of the Programmable Output

To operate a MISC output using Internet/phone-based operation, program advanced setup step #31 for Aux (below). This terminal is especially useful for devices that can be energized via the Internet. Telephone control may also be available when the thermostat is connected to the Internet.

Possible AUX scenarios:

1) Arm the alarm system in your home after you have left for the day.

2) Turn on your spa before arriving home.

3) Turn on your interior lights while you’re away.

MODE

PROGRAM

MODE

OFF Time = Temp = Aux

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

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

Press the MODE button repeatedly until this setup screen appears.

I8:88

Press the UP button three times to set the programmable output for Aux (web-based operation).

Programmable Output Polarity: NC = Normally Closed to operate when programmed to be OFF through the phone or internet. NO = Normally Open to operate when programmed to be ON through the phone or internet.

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

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

3 i

AUX

Setup

Page 15.7

Press

MODE

Press

PROGRAM

Page 77

SECTION 16

Programming Remote Sensor Operation

Section 16 Contents:

Installing the Remote

Sensors...................................16.2

Controlling or Reading the Remote Temperature (RS1)...16.3 Averaging the Remote Sensor (RS1) with the Thermostat

Sensor.....................................16.4

Page 16.1

Page 78

Installing the Remote Sensors

The Remote Sensor measures indoor air temperature and sends this information to the thermostat; it measures temperature with a range of 32 to 99 F.

The Remote Sensor should be connected to the thermostat using solid conductor CAT 5, CAT 5e, or CAT 6 type network communication cable. This is an unshielded cable with four twisted pairs of 24 gauge solid wire; DO NOT use stranded cable. The cable length should not exceed 250 feet. If less than 75 feet of cable is required to connect the thermostat to the Remote Sensor, a three conductor thermostat cable (18-24 gauge) may be used; this cable is NOT suitable for any length greater than 75 feet.

IMPORTANT: Do no use shielded wire. Do not run sensor wiring in the same conduit as the 24VAC thermostat wiring. Electrical interference may cause the sensor to give incorrect temperature readings.

Page 16.2

Page 79

Controlling or Reading the Remote Temperature (RS1)

The thermostat may be programmed to only READ the remote sensor, or to CONTROL to the remote sensor. Refer to advanced setup step #38, below.

Read Only Sensor (RS1): If step #38 is set to only READ to the remote sensor, the thermostat will not use this sensor for temperature control. This sensor may be viewed by pressing the OUTDOOR button on the thermostat and then pressing the MODE button.

Control Sensor (RS1): If step #38 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.

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

MODE

PROGRAM

MODE

YES

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

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

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

Setup

Outside

Page 16.3

Press

PROGRAM

Page 80

Averaging the Remote Sensor (RS1) with the Thermostat Sensor

If step #38 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.

If step #39 is set to ON (see below), the thermostat will average its internal sensor with the wired temperature sensor connected to RS1. The temperature displayed will be the average of the thermostat’s internal sensor and the remote (RS1) sensor.

MODE

PROGRAM

MODE

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

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

Press the MODE button repeatedly until this setup screen appears.

Optional Remote Sensor

Operation: ON = Averages thermostat sensor with Remote Sensor 1. OFF = Does not average thermostat sensor

Off

with Remote Sensor 1.

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

OFF

Page 16.4

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

Press

PROGRAM

Page 81

SECTION 17

Programming the Dry Contact

Section 17 Contents:

Dry Contact Operation............ 17.2

Dry Contact Polarity.................17.2

Dry Contact Programming......17.3

Page 17.1

Page 82

Dry Contact Operation

If the dry contact is going to be used, select YES in step #40. If the dry contact is not going to be used, select NO in step #40 below.

DRY CONTACT POLARITY - The terminals may be set to be Normally Open (NO) or Normally Closed (NC) in step #41. 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

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh 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.

Step 41 appears only if step 40 is “YES”.

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

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

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

Page 17.2

Setup

4 i

Press

MODE

Press

PROGRAM

Page 83

Dry Contact Programming

VACATION MODE OR SERVICE THE CONDENSATE DRAIN PAN If Vacation is selected in step #42 (below), when the dry contact is energized and the thermostat will be forced into Vacation mode (Section 20). 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

PROGRAM

MODE

Step 42 appears only if step 40 is “YES”.

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

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

Press the MODE button repeatedly until this setup screen appears.

Service Pan

elect Service Pan to lockout

S Y1 when the dry contact is energized. Select Vacation to enable Vacation setpoints when the dry contact is energized.

Vacation

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

Vacation

Press

PROGRAM

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

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.

Vacation Service Pan

W2 MISC1 RS2 MISC3 RS+5 RS1 RSGND

Connect wires to a time clock or other device to force the thermostat into Vacation mode.

W1/O/B

CKGND

MISC2

Y1 G

CK1

R C

Page 17.3

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 84

SECTION 18

Energy Save Operation

How to Use the Energy Save Feature

If the thermostat is configured to be programmable (Section 4), and Energy Save has been selected in step #43 (below), the room will attempt to reach the selected comfort temperature at the exact time programmed into the thermostat. Energy Save, or more commonly known as Smart Recovery, only works when the thermostat enters the Morning mode from the Night mode. For example, if the Night program is set for 11pm at 65°F heating and 85°F cooling, and the Morning program is set for 6am at 72°F heating and 75°F cooling, the thermostat will turn the system on before 6am in an effort to bring the temperature to its correct setting at exactly 6am. The T1900 learns from experience, so please allow 4-8 days after a program change or after initial installation to give Energy Save time to adjust to local weather, the construction of your home, and your heating and cooling system.

MODE

PROGRAM

MODE

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

Press the MODE button repeatedly until this setup screen appears.

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Select Energy Save on or off.

Off

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

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

OFF

Setup

Page 18.1

Press

PROGRAM

Page 85

SECTION 19

Programming Run-Time Alerts

Section 19 Contents:

Setting and Resetting the

Service Filter (Fan Run-Time)

Alert........................................19.2

Setting and Resetting the UV

Light Run-Time Alert.............19.3

Setting and Resetting the

Humidify Run-Time Alert......19.4

Page 19.1

Page 86

How to Set and Reset the Service Filter (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 #45 (below) has been achieved. Setting this counter to zero in step #45 will prevent the Service Filter icon from ever appearing.

MODE

PROGRAM

MODE

Press

FAN

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

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

Press the MODE button repeatedly until this setup screen appears.

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.

Service Filter

Setup

Page 19.2

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

PROGRAM

Press

MODE

Press

Page 87

How to Set and Reset the UV Light 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 #46 (below). Setting the counter to zero in Step #46 will prevent the Service UV Light icon from ever appearing.

MODE

PROGRAM

MODE

Press

FAN

MODE

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

Press the MODE button. While holding the MODE, press the PROGRAM 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

UV Light

Page 19.3

Note: Press the MODE butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Setup

Press

PROGRAM

Page 88

How to Set and Reset the Humidifier 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 #47 (below) has elapsed. Setting this counter to zero in step #47 will prevent the Service Humidify icon from ever appearing.

MODE

PROGRAM

MODE

Press

FAN

MODE

Press the MODE button. While holding the MODE, press the PROGRAM 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 butto n momen taril y to move through the setup screens. Press and hold the MODE button to move backward s thro ugh the setup screens.

Humidify

Setup

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

(0 - 1990 days)

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

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

Service

Humidify

Setup

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 19.4

PROGRAM

Press

Page 89

SECTION 20

Programming Vacation Mode

When the thermostat is programmed for Vacation mode, it will take effect at 12:00 am of the next day. The thermostat will control to the cooling and heating setpoints set in Vacation programming steps 2 and 3. Vacation setpoints will be enforced for the number of days specified in step #1 (0 - 99 days).

PROGRAM SET CLOCK

VACATION

Press the SET CLOCK button. While holding the SET CLOCK button, press the PROGRAM button to enter the Vacation programming setup steps.

Select the number of days that the Vacation schedule will be in effect. A value of 0 disables Vacation mode.

(0 - 99 days)

Adjust the cooling setpoint for Vacation mode.

(35 - 99 )

Adjust the heating setpoint for Vacation mode.

(35 - 99 )

0 80 65

Setup

Vacation

y 2

COOL

Vacation

HEAT

Press

MODE

Press

MODE

PROGRAM SET CLOCK

VACATION

You cannot set the Heat setpoint any higher than the Cool setpoint minus the deadband setting in Advanced Setup step #23 on page 14.2.

Press the PROGRAM and SET CLOCK buttons to exit the setup screens. If no buttons are pressed, the display will leave the setup screens after 30 seconds.

Page 20.1

Page 90

Programming Vacation Mode (continued)

VACATION DISPLAY - When the thermostat is placed into the Vacation mode, the thermostat will display the screen shown below.

To return the thermostat to normal operation from Vacation mode, press the PROGRAM and SET CLOCK buttons and adjust the days in step #1 to zero (see previous page).

Press the PROGRAM and SET CLOCK buttons to return to normal operation.

Page 20.2

Page 91

SECTION 21

Configuring the MISC Outputs

Section 21 Contents:

Configuring the Jumpers........21.2

Explanation of Jumper

Settings..................................21.3

Page 21.1

Page 92

Configuring 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 five choices available. In the diagram below, the MISC3 jumper has been set for HUM (humidification) operation, the MISC2 jumper has been set for DEHUM (humidification) operation, and the MISC1 jumper has been set for PROG (programmable) operation.

(FAN)

ELEC

INSTALL HUMIDITY

GAS

MISC1

HUM

NO HUM

RS2

MISC3

RS+5

Rs1

RSGND

579

DEHUM

CKGND

PROG

MISC2

HUM

CK1

MISC3 MISC2 MISC1

(MISC1 ONLY)

MODULE WITH SENSING

ELEMENT OUTWARD

CAUTION

NEVER PUT MORE THAN

ONE JUMPER ON THE SAME

MISC JUMPER BLOCK!

DOING SO MAY DAMAGE YOUR THERMOSTAT AND

VOID THE WARRANTY.

Page 21.2

PROG

HUM

DEHUM

MISC3

MISC3 MISC2 MISC1

MISC3

(MISC1

ONLY)

Page 93

Explanation of Jumper Settings

W3 JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC screw terminal on the backplate will control a third stage of heat.

W3 MULTI-STAGE OPERATION EXPLAINED - Page 14.4

The 3rd Stage of Heat is turned on when:

(A) The 1st and 2nd stages have been on for the time required (steps 28 and 29, page 14.6). It is adjustable from 0-60 minutes and the default

And

is two minutes. (B) The temperature from the setpoint is equal to or greater than: the set-

point plus the 1st stage deadband (step #25, 14.5), plus the 2nd stage deadband (step #26, 14.5) plus the 3rd stage deadband (step #27,

14.5). This 3rd stage deadband is adjustable from 0-10 degrees and

the default is two degrees.

3rd Stage

turn on

PROG JUMPER SETTING

If the jumper for MISC1, MISC2, or MISC3 is set to PROG, terminal on the backplate will control a pilot relay or other accessory.

2nd Stage

Heating

Deadband Deadband DeadbandDeadbandDeadband

1st Stage

turn on

DECREASE INCREASE

db 1 db 1db 2 db 2db 3

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

Heat

Cool

Setpoint

TEMPERATURE

PROGRAMMABLE OUTPUT - SECTION 15

This jumper setting allows the MISC outputs to control a pilot relay by time, temperature, or a signal from the Internet/Phone. The following are three possible scenarios: By Time: A device that requires a start and stop time. For example, an exterior lighting system that needed to be energized every day between

the hours of 8pm and 1am. By Temperature: An exhaust fan that needs to energize whenever the temperature from RS1 rises above 90 degrees F. By Remote: Remotely arming a security system through the web or phone.

Page 21.3

Cooling

1st Stage

2nd Stage

turn on

the corresponding MISC screw

Page 94

Explanation of Jumper Settings (continued)

HUM JUMPER SETTING

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

HUMIDIFICATION OPERATION - SECTION 9

If your HVAC unit is equipped with a humidification system 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, 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 10

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): The thermostat will 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.

the corresponding MISC screw

Page 21.4

Page 95

Explanation of Jumper Settings (continued)

Y2 JUMPER SETTING

If the jumper for MISC1 is set to Y2 the second stage of cooling.

Y2 OPERATION - Page 14.4

Control up to two Cool stages. The 2nd Stage of heat or cool is turned on when: (A) The 1st Stage has been on for the time required (step #28, page 14.6). It is adjustable from 0-60 minutes and the default is two minutes.

And

(B) The temperature spread from the setpoint is equal to or greater than: the setpoint plus the deadband (step #25, page 14.5), plus the 2nd deadband (step #26, page 14.5). This 2nd deadband is adjustable from 0-10 degrees and the default is two degrees.

TEMPERATURE

MISC1 screw terminal on the backplate will control a

Cooling

DeadbandDeadband

db 1 db 2

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

1st Stage

Cool

Setpoint

turn on

INCREASE

2nd Stage

turn on

Page 21.5

Page 96

SECTION 22

Factory Defaults, Calibration, and Sensors

Section 22 Contents:

Resetting the Thermostat to the

Factory Default Settings........22.2

Calibrating the Temperature

and Humidity Sensors...........22.3

Page 22.1

Page 97

Resetting the Thermostat to the Factory Default Settings (for default values see page 24.1)

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 Time Period and Advanced Programming to the default settings. Any information entered

prior to this reset may be permanently lost.

I2:00

MODE

Place the thermostat in the OFF mode.

OFF

Setup

Program On

I8:88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

AUTO OFFON

Morning DayNight Evening

I88

FanOn

I2:00

OFF

Am Pm

StartStop

DeHumidify

COOL

Outside

Vacation

AUXHEAT

MODE

FAN

MODE

and hold the MODE

Press 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 22.2

Page 98

Calibrating 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.

I2:00

OFF

MODE

Place the thermostat in the OFF mode.

Setup

Program On

and hold the MODE

MODE

FAN

PRESS

TWICE

Press the MODE button once. The

MODE

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

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

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

REMOTE SENSOR (RS1)

HUMIDITY SENSOR

DOWN

Page 22.3

I8:88

SuMoTuWeThFrSa

Service Filter

Pan UV Light

AUTO OFFON

Morning DayNight Evening

FanOn

Am Pm

StartStop

DeHumidify

I88

Outside

COOL

Outside

Vacation

AUXHEAT

CALIBRATE

Page 99

SECTION 23

Accessories

ACCESSORY PORT - The RJ11 Jack is used to connect the

T1900 to the IR Receiver (ACC0431) for wireless communication

or the EZ Programmer (ACC0432) 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

manual for the IR Receiver (ACC0431).

EZ PROGRAMMER (option al acces sory) - When the EZ

is connected, the thermostat Time Period Programming and

Advanced Setup Programming can be stored into the EZ

Programmer’ s memory. This information can then be uploaded

to other T1900 thermostats. For more information see the

manual for the (ACC0432).

COMFORT CALL (optional accessory) - When Comfort call is connected,

the thermostat’s Heating and cooling functionality may be accessed

and controlled through the phone. For more information see the

manual for Comfort Call (ACC0433).

Programmer

Page 23.1

Page 100

SECTION 24

Advanced Setup Table

Pg#

Description

Step#

Programmable Thermostat

Auto Changeover Thermostat

Programmable Fan

Programmable Fan Start Time

Programmable Fan Stop Time

Fan Off Delay

Thermoglow Backlight

F or C

Humidify with Fan

Cool to Dehumidify

Maximum Dehum Overshoot

Reheat Operation

DEHUM Terminal Polarity

Energy Watch Heat Timer

Energy Watch Cool Timer

Reset Service Humidify Icon

Reset UV Light Icon

Heatpump Jumper Setting

Reversing Valve Jumper Setting

Electric Heat

Dual Fuel Operation

Changeover Balance Point

Minimum Heat/Cool Differential

Cycles Per Hour

Deadband/Temp. Swing 1st Stage

Deadband/Temp. Swing 2nd Stage

Range

Yes/No

4.2

Yes/No

4.3

0:00-0:60

7.3 24 Hour

7.3

24 Hour

7.3

0, 30, 60,

7.4 90 Auto/On/

8.2 Off F/C

8.2 Yes/No

9.3 On/Off

10.4 0 - 5

10.4

On/Off

10.5 NO/NC

10.6

read only

11.2

read only

11.3

read only

11.4

read only

11.5 read only

12.2

read only

12.2

read only

12.3 Off/On

13.2 32 - 85

13.2

0 - 6

14.2

d1, d, 2-6

14.3 1 - 6

14.5

0 - 10

14.5

Yes

0 7am

9pm

Auto

F No Off 3

Off NC

- -

- Off 35

6 2

Step#

41 42

43 44

14.5

14.6

14.7

15.3

15.4

15.5

15.6

16.3

16.4

17.2

17.3

18.1

19.2

19.3

19.4

Range

0 - 10

0-60min

On/Off

Off/Time/ Temp/Aux NO/NC

7Day/ 1Day Mo - Su

24 Hour

35 -125

Yes/No

On/Off

Yes/No

NO/NC Vacation/ Service Pan Off/On read only

0 - 1950

0 - 1999

Pg#

Description

Deadband/Temp. Swing 3rd Stage Minutes Between Stage 1 & 2 Minutes Between Stage 2 & 3 2nd Stage turn off at setpoint Programmable Output Programmable Output Polarity 7 Day/1 Day Progammable Output Programmable Output Day of the Week Programmable Output Start Time Programmable Output Stop Time Programmable Output Temp. Setpoint Thermostat READ to RS1 Local Sensor Averaging Dry Contact Operation Dry Contact Polarity Dry Contact Programming

Energy Save Reset Service Filter Icon Service Filter Run Time Set UV Light Run-Time Set Service Humidify Run-Time Set

Off

7Day Mo

7am

9pm

Yes

Off

NO Vacation

Off

- -

*Df = Factory Default Setting

Page 24.1