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Alarm.com Smart Thermostat (ADC-T2000) – Installation Guide

Jan 19, 2020
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Estimated reading time: 9 min
  • Before installing or servicing the thermostat, turn off power to the system at the circuit breaker.
  • Leave power off until the thermostat has finished installing or servicing.
  • Shorting the electric terminals at the control on the heating or cooling system may damage the thermostat. Do not test the system this way.
  • Follow all local codes and ordinances for wiring the system.
  • This thermostat should only be powered by 4 AA alkaline batteries or a listed class 2 power supply at 24 VAC (C-Wire or wall transformer).
  • An amperage higher than 1 amp to each thermostat relay load may cause damage to the thermostat.
  • Verify that the system is 24 VAC. If the old system is labeled as 120 or 240 volts or has wire nuts, the system is high voltage. Do not install the thermostat to a high voltage system. Contact a local HVAC professional for help.

 

Box contents

SmartThermostatBoxContents.PNG

 

Recommended tools

Recommended tools.png

 

Thermostat overview

ThermstatOverview.PNG

 

Buttons
Icon Function
Up.png Adjust target temperature up.
Mode.png Change thermostat between HEAT, COOL, AUTO, EMER and OFF modes.
Down.png Adjust target temperature down. Also used to include and exclude from the network.

 

Modes
Icon Function
Heat.png Will activate the heating system.
Cool.png Will activate the air conditioner.
Auto.png Will select either the HEAT or COOL mode automatically.
EMER.png For use with heat pumps only. Will bypass the heat pump and enable the auxiliary/emergency heat.
Off.png The system will not heat or cool.

 

Icons
Icon Function
Heat.png Illuminated in HEAT, EMER or AUTO mode.
Cool.png Illuminated in COOL or AUTO mode.
Radio.png Illuminated during the wireless configuration.

 

Location

If replacing an old thermostat, the new thermostat can be mounted in its place. If a new location is desired it will be necessary to move the wiring.

New installations and relocation should follow the accompanying guidelines to ensure the most accurate temperature reading and ease of use.

  • Mount thermostat on an inside wall, approximately 5 ft. (1.5m) above the floor in a frequently used room.
  • Do not install in locations near appliances or devices that affect the local temperature such as televisions, lamps, or dryers.
  • Avoid areas that are exposed to large temperature variances, such as: direct sunlight, near an AC unit, above or below auxiliary heat and air vents, and drafts from windows.
  • Be aware of what is on the other side of the wall where the thermostat is being installed. Do not install on walls adjacent to unheated rooms, stoves, or housing hot water pipes.
  • Damp areas will not only affect the humidity reading of the thermostat, but could lead to corrosion and shorten the life of the thermostat.
  • Install in a location with good air circulation. Stagnant air will not accurately reflect the rate of temperature change in the room. Avoid areas behind open doors, corners, and alcoves.
  • Wait until construction and painting are finished before installing.

 

Preparation

 

The existing thermostat
  1. Test the system.
    • Verify that the heating and/or cooling system is operating properly before attempting to install the new thermostat.Caution: Do not test the system by shorting electric terminals at the furnace or air conditioner. This may damage the thermostat.
  2. Turn power off.
    • Turn all heating and cooling systems off. This can be done at the circuit breaker.Turn power off.pngCaution: Do not remove the existing thermostat until power has been turned off at the circuit breaker.

      Once power to both the heating and cooling systems is off, follow these steps:

  3. Remove thermostat cover.
    • Remove the cover from the existing thermostat. Do not disconnect the wires yet.Important: Take a picture of the wires before detaching them from the existing thermostat for future reference.
  4. Label all existing wires.
    • Label all existing wires, one at a time, with the labels provided.
    • Make sure the wires are labeled correctly. If there is an unidentified wire, it may be necessary to identify the wire where it connects to the heating or air conditioning equipment.Important: Take another picture of the wires to document connections for easy reference. Do not disconnect wires before labeling them.Label all existing wires.png

      Caution: Wiring can vary for each manufacturer. Label all wiring before removing it from the existing thermostat.

    • Disconnect all of the wires and remove the existing thermostat.Important: Remember to secure the wires so they don’t fall into the wall.

 

Prepare the wires

Follow these guidelines for safe and secure wire connections:

  • Verify the wires are a proper gauge between 18-24 AWG.
  • Verify the wires have exposed straight ends about 1/8” long.

Caution: Verify that the system is 24 VAC. If the old system is labeled as 120 or 240 volts or has wire nuts, the system is high voltage. Do not install the thermostat to a high voltage system. Contact a local HVAC professional for help.

 

Install the new thermostat

 

Install the back plate

Use the bubble level provided on the back plate as a guide. Mark where the screws will go with a pencil through the screw holes on the back plate.

Note: If necessary, use the trim plate to cover up any marks or holes left from the old thermostat. Attach the trim plate before securing the back plate to the wall. Drill holes with 3/16” drill bit to tap in the drywall anchors for added support.

 

Wire the new thermostat

Reconnect the wires to the new thermostat and indicate the connected wires with a pencil in the image below. This information will be needed when configuring the thermostat.

Wire new thermostat.png

Caution: If there are extra wires do not install them in the new thermostat. Please contact a local HVAC professional for additional assistance.

  • If there is an R wire, connect it to RH.
  • If there are both RH and RC wires, remove the black jumper in the lower left corner of the backplate terminal board with needlenose pliers, and attach wires to both RH and RC terminals.

Jumper on.pngJumper off.png

  • Z can be used for W3, H, DH, or O/B Zoning

Terminal designations.png

 

Insert batteries into the thermostat

Insert batteries.png

The thermostat can be powered by battery or 24 VAC. If a wall transformer is used to power the thermostat, connect between C and RH.

Ensure the batteries are installed following the specified polarity markings on the thermostat.

Caution: Special Battery Warning

  • Always replace the batteries as soon as they have low battery levels, indicated by “LOW” then “BATT” flashing on the display. If the batteries drain, the thermostat could leave the HVAC system on or off, overheating or freezing the home.
  • Always replace the batteries at least once a year. This will protect the thermostat from damage and corrosion by leaking batteries.
  • If the home is unoccupied for a month or more, such as vacation homes, replace the batteries as a preventive measure against battery failure while away.
  • Always use new batteries as replacements.

 

Install thermostat body to back plate

Verify that any excess wire is tucked back into the wall to allow room for the thermostat to sit flush against the back plate.

Press the thermostat body firmly into the back plate mounted to the wall. Ensure that the pins on the body are correctly aligned with the header attached to the terminal board on the back plate. Failure to do so could cause damage to the thermostat.

Install body to back plate.png

 

Turn the power on

Restore power to all the heating and cooling systems. This can be done at the circuit breaker.

Turn power on.png

 

Connect the thermostat to the system
  1. Put the thermostat in OFF mode (i.e. no mode icons are lit).
  2. Put the Z-Wave controller into inclusion mode. Refer to the controller documentation for more information.
  3. Press and hold Down on the thermostat to begin inclusion mode. Release the button when Radio lights up.
  4. When Radio becomes solid, the thermostat has been included. If the thermostat isn’t pairing successfully, see Exclude the Thermostat From the Z-Wave Network, then try connecting it again.
  5. Log into the online account (www.alarm.com/login) to sync the thermostat with the Alarm.com system, or contact an Alarm.com professional for installation setup.

 

Configure the system

The thermostat configuration will be done on the online account. Here it is possible to configure the parameters of the system, such as: Heat Pump or Normal, number of heat and cool stages, heating fuel, calibration temperature, and configurable terminal (Z). Using the online account, the thermostat configuration must be entered. Refer to page 7 for the appropriate diagrams when setting up the thermostat.

While the default settings will be sufficient in most cases, there is also the option to change advanced configuration settings, such as: Swing, Differential, Recovery Settings, Fan Circulation Period and Duty Cycle, Maximum Set Points, Minimum Set Points and Thermostat Lock.

The thermostat can be configured locally for the most common configurations. Please see Page 12 for instructions.

Caution: Use caution when changing advanced configuration settings. These configuration settings should only be changed by those familiar with heating and cooling systems’ parameters. Contact a local HVAC professional for help.

 

Check the system

Caution: Do not test the AC during cold weather or heat during hot weather. Wait for mild weather to fully test the system.

 

To check heating:
  1. Press Mode to select HEAT mode.
  2. Press Up to raise the set point above room temperature.
  3. Wait 5 minutes for the system to turn on.
  4. After verifying the heating system is working, return the set point to the desired temperature.

 

To check cooling:
  1. Press Mode to select COOL mode.
  2. Press Downto lower the set point below room temperature.
  3. Wait 5 minutes for the system to turn on.
  4. After verifying the cooling system is working, return the set point to the desired temperature.

 

Manual configuration of HVAC system on thermostat

The system type listed in the table below can be physically set on the thermostat by doing the following:

  1. Put the thermostat in OFF mode.
  2. Press and hold Up for 5 seconds until the display shows a version number.
  3. Press and hold Up again for 5 seconds until the display shows your HVAC setup.
  4. Press Up or Down to select the thermostat configuration from the table below.
  5. Press Mode to confirm the selection.

Manual configuration.png

 

Operation

operation.PNG

  1. Press any button to wake the thermostat up.
  2. After waking, the display will show the current mode and room temperature.
  3. Press Up or Down once to display the current set point.
    • The mode icon HEAT or COOL will begin to pulse.
  4. Press Up or Down ​​​​again to adjust to the desired set point.
  5. Press Mode at any time to change the mode.
    • The modes are HEAT, COOL, AUTO, EMER, and OFF.
    • EMER mode is available for Heat Pump systems. Press and hold Mode while in Heat Mode to enter EMER.
    • When in EMER mode, the display will read EMER when the thermostat wakes up and the HEAT icon will be displayed. Changing the mode will leave EMER mode.
  • In AUTO, the brighter icon will indicate which set point is currently displayed and active HEAT or COOL.
  • After 5 seconds the display will return to the current room temperature. The mode icon will become solid to indicate this. If powered by the “C” wire, the thermostat display will remain lit. If the thermostat is running on battery power only, the display will turn off after 5 seconds to conserve energy. The thermostat will continue to operate while the display is off.

 

Troubleshooting

For more advanced troubleshooting information, see Alarm.com Smart Thermostat – Troubleshooting Guide.

 

Heating or cooling doesn’t turn on when the set point is above or below the room temperature

To prevent damaging the compressor, the thermostat inserts a delay when cycling the compressor. If the system should be on and it’s not, then change the set point to be 2 degrees beyond the current set point and wait 5 minutes to see if the system turns on. If not, contact a local HVAC professional.

 

Heat pump is “Cooling when it should be heating” or “Heating when it should be cooling”

Because both types of heat pump reversing valves share a single terminal on the thermostat back plate, verify that the thermostat is configured for the correct wire. Try switching the O/B configuration setting through the online account. Contact a local HVAC professional for further help with this issue.

 

Exclude the thermostat from the Z-Wave network

If the thermostat needs to be removed from the network (i.e., for inclusion to a new network, when failing to enroll, when experiencing communication issues, etc.), follow the steps below to do so.

  1. Set the thermostat to OFF mode.
  2. Put the Z-Wave controller into exclusion/remove/delete mode. For more information about this process, refer to the Z-Wave guides in Panels.
  3. Press and hold Down​​​ on the thermostat to enter exclusion mode. Release the button when Radio lights up.
  4. When Radio flashes red, the thermostat has now been successfully excluded from the network.

 

Batteries drain quickly

If a thermostat is included using a “C” Wire, that information is saved in the network and cannot be changed unless excluded and included again without a “C” Wire connected. The same applies to thermostats included on battery power.

If you find the thermostat batteries are draining unusually fast, verify the “C”-Wire connection is still intact. If a device is included using the “C” Wire, the Z-Wave communication never sleeps, and the thermostat will act as a repeater, sending messages for other devices as well. If the “C” Wire is removed, this kind of activity will drain the battery very quickly.

 

HVAC system is not holding the temperature

If the HVAC system is not consistently holding the temperature, it maybe be a wiring or other HVAC-related issue. Contact an HVAC professional.

 

Notices

 

FCC

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.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

 

IC

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l’intention des autres utilisateurs, il faut choisir le type d’antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l’intensité nécessaire à l’établissement d’une communication satisfaisante.

Note: The grantee is not responsible for any changes or modifications not expressly approved by the party responsible for compliance. Such modifications could void the user’s authority to operate the equipment.

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