Venstar T7800 Touchscreen Digital Thermostat Owner Manual

Venstar T7800 Touchscreen Digital Thermostat

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

FCC STATMENT

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 operations. This color touchscreen has the ability to receive updates to its firmware. Periodically firmware updates are released by the manufacturer to add features and/or performance enhancements. This manual was produced reflecting the most current firmware/ the feature set at the time of publication, firmware rev. 3.04. Firmware releases after rev. 3.04 may not be adequately depicted in this manual. Please refer to the appropriate website or contact your place of purchase to learn about changes to the thermostat after firmware release 3.04.

Glossary of Terms

• Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand.
• Cool Setpoint: The warmest temperature that the space should rise to before cooling is turned on (without regard to the headband).
• Deadband: The number of degrees the thermostat will wait, once a setpoint has been reached, before energizing heating or cooling.
• 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 regard to deadband).
• 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 Time Period Programming. Programmable Thermostat: A thermostat that has the
• the capability of running Time Period Programming.
• 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 the day. Same as Schedule.

Get To Know Your Thermostat

Get To Know Your Thermostat

Dropdown Dashboard
The Dropdown Dashboard displays temperature and other readings. It will also show the high and low readings of the day.

 

Care and Use of Your Thermostat
Pencils, pens, and other sharp objects should never be used on your thermostat; these may damage your touchscreen. Only use your fingertip to press the touchscreen buttons.

DO NOT USE ABRASIVE CLEANERS OR CLEANERS THAT CONTAIN SOLVENTS. DO NOT SPRAY ANYTHING DIRECTLY ONTO THE THERMOSTAT.

Quick Start – Temperature, Modes & Fan Selecting Your Desired Temperature and Mode

AUTO-CHANGEOVER MODE – Pressing the WARMER or COOLER buttons in Auto mode will adjust both the heat and cool setpoints simultaneously. To adjust the heat and cool setpoints individually, choose HEAT mode to adjust the heat setpoint and COOL mode to adjust the cool setpoint, then return to AUTO mode. HEAT OR COOL MODE – Pressing the WARMER or COOLER buttons in Heat or Cool mode will adjust only the heat or cool setpoints.

Using the Fan Button

• Press the FAN Icon
• FAN ON fan runs constantly except in OFF Mode.
• FAN AUTO fan only runs with a heating or cooling demand.

NOTE: The FAN button is disabled during Program Run Mode.

Quick Start – Override Using the Override Button

• Unoccupied Operation – During programmed, unoccupied periods, pressing the OVERRIDE button will force the thermostat into Occupied 1 settings. When the OVERRIDE button is pressed, a timer screen will appear and allow the user to choose from 30 minutes to up to 4 hours of override time. To turn off the override timer, press the OVERRIDE button and when the timer screen appears, press CANCEL OVERRIDE.
• Occupied Operation – During programmed, occupied periods, pressing the OVERRIDE button will force the thermostat into an unoccupied period for the rest of the day. During this forced unoccupied period the OVERRIDE button will operate as described above.
• Holiday Operation – During Holiday Mode, pressing the OVERRIDE button will force the thermostat into the Occupied 1 setting. When the OVERRIDE button
  is pressed, a timer screen will appear and allow the user to choose from 30 minutes to up to 4 hours of override time. To turn off the override timer, press the OVERRIDE button and when the timer screen appears, press CANCEL OVERRIDE.

Quick Start – Set Time & Date

Setting the Time

Setting the Date

Main Menu Buttons – Schedule

Main Menu Buttons – Schedule

Main Menu Buttons – Fan Settings

Main Menu Buttons – Screensaver

Press this button to preview your screensaver operation before returning to the Home Screen. After the preview, press anywhere on the screen to return to the sub-menu.

Main Menu Buttons – Alerts

Main Menu Buttons – Display

Main Menu Buttons – Display

Main Menu Buttons – Preferences

Main Menu Buttons – Holidays

The Holiday Schedule allows the ColorTouch to follow a fully customizable preset, weekly, monthly, and yearly holiday program. The thermostat will Holidays stay in Unoccupied settings while Holiday is active.

Holiday Schedule – OFF
Press to turn Holiday Schedule On or Off.

Edit Holidays
Start by selecting a Holiday.You may continue to select more holidays or you can press the Repeat button for recurring holidays. Pressing a selected holiday will deselect that holiday.

Using the Repeat Button
Choose to repeat the holiday every week, month or year. Or, press CANCEL to go back. If you choose to repeat the holiday every week, you will be prompted to confirm the day of the week to be repeated.

Using the Info Button
Press the Info button to view how non-holidays, holidays, and exceptions to repeating holidays will appear on the Holiday calenda.

Edit Holidays
Deselecting Holidays
You may deselect a holiday simply by pressing on it. Press BACK to save your changes and return to the Holiday menu. If you choose to deselect a holiday that is part of a Custom Repeating Program, the screen below will appear.

Marking Non-Holidays
You will now be prompted to mark this day only as a non-holiday or edit All repeating holidays that affect this day. Press SAVE to mark only this day as a non-holiday.

If you choose to edit repeating holidays that affect this day, press NEXT and the next screen will appear..

Editing Repeating Holidays
If, for example, you choose to repeat the holiday every month, the following screen will appear: You may now choose to repeat the holiday:

• On the 25th of every month
• On the 4th Monday of every month
• On the last Monday of every month

Press SAVE to save your changes and return to Holiday programming.

Editing Repeating Holidays (continued)
You may now delete all repeating custom holidays in this group by pressing the ON box to uncheck your selection. Press SAVE to return to Holiday editing screens.

You may choose from several standard preset holidays to observe. When the preset holidays are set to ON, they will be observed every year on that date.

Overriding Holiday Mode
You may override Holiday Mode by pressing the OVERRIDE button and choosing the amount of override time desired. Turning Off Holiday Mode From the Homescreen You may turn off Holiday Mode by pressing the MODE button and then pressing the Holiday STOP button.

Main Menu Buttons – Security

Main Menu Buttons – Information

Main Menu Buttons – Settings

Main Menu Buttons – Settings

At 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 WARMER or COOLER buttons. (2, 3, 4, 5, 6, No Limit)

Main Menu Buttons – Settings

The Deadband is the number of degrees or minutes that the thermostat waits before it initiates the stages of heating or cooling. 1st Stage Deadband Specifies the minimum temperature difference between the room temperature and the desired setpoint before the first stage of heating or cooling is allowed to turn on. For example, if the heat setpoint is 68˚ and the 1st Stage deadband is set to 2 degrees, the room temperature will need to drop to 66 degrees before the heat turns on.

Main Menu Buttons – Settings

Main Menu Buttons – Settings

Main Menu Buttons – Accessories

 

Main Menu Buttons – Emergency Heat

The Emergency Heat function
is only available if your thermostat is set to control a Heat Pump. To initiate the Emergency Heat feature, Press the Emergency Heat button. During Emergency Heat operation the thermostat will turn on the fan and auxiliary stages of heat when there is a demand for heat. The 1st stage of heating and all stages of cooling will be unavailable. To exit Emergency Heat, press the Emergency Heat button.

The ColorTouch Assistant
ColorTouch Assistant may be downloaded at no charge at: www.venstar.com/thermostats/colortouch/assistant

Every time the user runs the ColorTouch Assistant software, it automatically connects to Venstar ColorTouch website in the background and updates the software and firmware (the operating system for ColorTouch) at no cost. The ColorTouch Assistant allows you to use your computer to:

• Upload photos for background and slideshow images
• Configure installation settings
• Update thermostat firmware
• Program a time period schedule
• Upload dealer and service contact information and company logo

The ColorTouch Assistant
Uploading Photos and Settings to your thermostat When you are finished adding and editing photos and settings, click on Save to SD. When prompted, remove the SD card from the SD card reader on your computer.

At the thermostat:
Insert the SD card into the SD Card Slot

Your thermostat will automatically save your new photos and settings in it’s internal memory. When finished, you may remove the SD card. It is not needed for normal thermostat operation.

Installation Instructions

Remove and Replace the old thermostat
To install the thermostat properly, please follow these step by step instructions. If you are unsure about any of these steps, call a qualified technician for assistance.

• Assemble tools: Flat blade screwdriver, wire cutters and wire strippers.
• Make sure your Heater/Air Conditioner is working properly before beginning the installation of the thermostat.
• Carefully unpack the thermostat. Save the screws, any brackets, and instructions.
• Turn off the power to the Heating/Air Conditioning system at the main fuse panel. Most residential systems have a separate breaker for disconnecting power to the furnace.
• Remove the cover of the old thermostat. If it does not come off easily, check for screws.
• Loosen the screws holding the thermostat base or subbase to the wall and lift away.
• Disconnect the wires from the old thermostat. Tape the ends of the wires as you disconnect them, and mark them with the letter of the terminal for easy reconnection to the new thermostat.
• Keep the old thermostat for reference purposes, until your new thermostat is functioning properly.

Installation Instructions

Wire Connections
If the terminal designations on your old thermostat do not match those on the new thermostat, refer to the chart below or the wiring diagrams that follow.

Wire from the old thermostat terminal marked	Function	Install on the new thermostat connector marked
G or F	Fan	G
Y1, Y or C	Cooling	Y1
W1, W or H	Heating	W1/0/B
Rh, R, M, Vr, A	Power	R
C	Common	C
O/B	Rev. Valve	W1/O/B*
W2	2nd Stage Heat	W2
Y2	2nd Stage Cooling	Y2
W3	3rd Stage Heat	W3
OUT –	Outdoor Sensor	SENSOR
OUT +	Outdoor Sensor	SENSOR
S1	Remote Sensor	SENSOR
S2	Remote Sensor	SENSOR

O/B is used if your system is a Heat Pump.

Installation Instructions

NOTE:
The backplate does not fully cover a full size vertical junction box. The ACC-WPLWH ColorTouch Wallplate or a single-gang, horizontally mounted junction box would be needed for that type of installation

• W3 3rd stage heat circuit/2nd stage aux heat
• W2 2nd stage heat circuit/ 1st stage aux heat
• W1/O/B 1st stage heat circuit/reversing valve
• Y2 2nd stage compressor relay
• Y1 1st stage compressor relay
• G fan relay
• R 24 VAC return
• C 24 VAC common
• SENSOR remote/outdoor/supply/return sensor connections

Installation Instructions

Explanation of Thermostat Dip Switches
Dip switches are located on the back of the thermostat

• This dip switch configures the thermostat to control a conventional gas/electric system or a heat pump. If your system is anything other than a heat pump, leave this switch set for GAS/EL.* *For some commercial heat pumps, this switch may need to be set for GAS/EL. Consult the commercial heat pump literature.
• When the GAS/EL or HP dip switch is configured for HP, this dip switch (O or B) must be set to control the appropriate reversing valve. If O is chosen, the W1/O/B terminal will energize in cooling. If B is chosen, the W1/O/B terminal will energize in heating.
• * When GAS/EL or HP is set for GAS/EL:
  This switch (GAS or ELEC) controls how the thermostat will control the Fan (G) terminal in heating mode. When GAS is chosen, the thermostat will not energize the Fan (G) terminal in heating. When ELEC is chosen the thermostat will energize the fan in heating.
• When GAS/EL or HP is set for HP: This switch (GAS or ELEC) defines the Aux Heat type. When GAS is chosen, the auxiliary heat will not be allowed to run during heat pump operation. When ELEC is chosen, up to two stages of auxiliary strip heat will be allowed to run.

Installation Instructions
Sample Wiring Diagrams with Dip Switch Positions Conventional Heating and Cooling Systems

 

Sample Wiring Diagrams with Dip Switch Positions Heat Pump Systems

Sample Wiring Diagrams

Outdoor Sensor: ACC-TSEN Temperature Sensor 10K ohm sensor at 77F/25C. Negative Temperature Coefficient.

Indoor Remote Sensor with Override Button: ACC-TSENWB Temperature Sensor 10K ohm sensor at 77F/25C. Negative Temperature Coefficient. (see page 36 for seonsor setup intructions)

Troubleshooting

• SYMPTOM: The thermostat touchscreen buttons are not responsive. CAUSE: The touchscreen is out of calibration.
  REMEDY: Remove the thermostat from the backplate. Push the thermostat back onto the backplate, while keeping your finger pressed firmly against the center of the touchscreen, until the Calibration screen appears. Re-calibrate the Touchscreen.
• SYMPTOM: The display is blank.
  CAUSE: Lack of proper power.
  REMEDY: Make sure the power is on to the HVAC and that you have 24vac between R & C.
• SYMPTOM: The air conditioning does not attempt to turn on.
  CAUSE: The cooling setpoint is set too high.
  REMEDY: Lower the cooling setpoint or lower the cooling set-point limit. See Setpoint Limits (page 27).
• SYMPTOM: The heating does not attempt to turn on.
  CAUSE: The heating setpoint is set too low.
  REMEDY: Raise the heating setpoint or raise the heating set-point limit. See Setpoint Limits (page 27).
• SYMPTOM: When controlling a residential heat pump, and asking for cooling, the heat comes on.
  CAUSE: The thermostat reversing valve dip switch is set for “B”. REMEDY: Set the reversing valve jumper for “O”.
• SYMPTOM: When calling for cooling, both the heat and cool come on. CAUSE: The thermostat equipment dip switch is configured for “HP” and the HVAC unit is a Gas/Electric.
  REMEDY: Set the equipment dip switch for “Gas”.
• SYMPTOM: Air handler control board fuse blows when thermostat is attached to backplate with power on, but does not blow until the thermostat is placed onto the backplate.
  CAUSE: The Outdoor sensor and/or sensor wiring is shorted. REMEDY: Check/replace Outdoor sensor and/or sensor wiring.

Warranty

One-Year Warranty – This Product is warranted to be free from defects in material and workmanship. If it appears within one 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. THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR:

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. Patent Pending Printed on recycled paper. P/N 88-874 Rev. 5

REFERENCE:

Download Manual:

Venstar T7800 Touchscreen Digital Thermostat Owner Manual

Other Manual:

Venstar T7800 Touchscreen Digital Thermostat Quick Setup Guide

Venstar T7800 Touchscreen Digital Thermostat Owner Manual