Alarm.com Smart Thermostat ADC-T2000 Product Manual
Important Safety Information
⚠️ Before installing or servicing the thermostat, turn off power to the system at the circuit breaker.
Leave power off until you have 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.
You must 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
- Thermostat
- Backplate
- Trim Plate (Optional)
- Drywall Screws (3)
- AA Batteries (4)
- Drywall Anchors (3)
- Wire Labels
Recommended Tools
- Needlenose Pliers
- Phillips Head Screwdriver
- Power Drill
- Pencil
Thermostat Overview
Buttons
- UP (⬆️) Button: Adjust target temperature up.
- MODE (⚙️) Button: Change thermostat between HEAT, COOL, AUTO, and OFF modes.
- DOWN (⬇️) Button: Adjust target temperature down. Also used to include and exclude from the network.
Icons
- HEAT (?) Icon: Illuminated in HEAT or AUTO mode.
- COOL (❄️) Icon: Illuminated in COOL or AUTO mode.
- RADIO (?) Icon: Illuminated during the wireless configuration.
Modes
- AUTO: HEAT (?) Icon and COOL (❄️) Icon Illuminated simultaneously. The thermostat automatically selects the appropriate mode.
- OFF: No icons illuminated. The system will not heat or cool when in OFF mode.
Location Guidelines
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 these 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 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 can affect humidity readings, lead to corrosion, and shorten the thermostat's life.
- Install in a location with good air circulation. Stagnant air will not accurately reflect room temperature changes. 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 installing the new thermostat. DO NOT test the system by shorting electric terminals at the furnace or air conditioner, as this may damage the thermostat.
2. Turn Power Off
Turn all heating and cooling systems off at the circuit breaker.
⚠️ CAUTION: DO NOT REMOVE the existing thermostat until power has been turned off at the circuit breaker.
Once power is off, follow these steps:
3. Remove Thermostat Cover
Remove the cover from the existing thermostat. Do not disconnect the wires yet.
TIP: 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 provided labels. Ensure wires are labeled correctly. If an unidentified wire exists, identify where it connects to the heating or air conditioning equipment.
TIP: Take another picture of the wires to document connections for easy reference. Do not disconnect wires before labeling them.
Disconnect all wires and remove the existing thermostat. TIP: 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:
- Ensure wires are a proper gauge between 18-24 AWG.
- Make sure wires have exposed straight ends about 1/8" long.
CAUTION: Wiring can vary for each manufacturer. Label all wiring before removing it from the existing thermostat.
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 Your New Thermostat
Install the Back Plate
Use the bubble level on the back plate as a guide. Mark screw locations with a pencil through the screw holes. TIP: If necessary, use the trim plate to cover old marks or holes. Attach the trim plate before securing the back plate. TIP: Drill holes with a 3/16" drill bit for drywall anchors.
Wire Your New Thermostat
Reconnect wires to the new thermostat, indicating connected wires in the diagram below. This is needed for configuration.
Wiring Diagram
Terminal Connections:
RC
RH
Z
W2
W
C
Y
Y2
G
O/B
- If you have R, connect it to RH.
- If you have RH & RC, remove the black jumper in the lower left corner of the back plate terminal board with needlenose pliers.
Jumper Settings
Jumper On: (Diagram shows jumper connecting RC and RH terminals)
Jumper Off: (Diagram shows jumper removed)
Z can be used for W3, H, or DH.
TIP: If you have extra wires, do not install them in the new thermostat. Contact your local HVAC professional for assistance.
Insert Batteries Into the Thermostat
The thermostat can be powered by battery or 24 VAC. If using a wall transformer, connect between C and RH. Ensure batteries are installed following polarity markings.
⚠️ CAUTION: Special Battery Warning
- Always replace batteries as soon as low battery levels are indicated ("LOW" then "BAT" flashing). If batteries drain, the thermostat could leave the HVAC system on, causing overheating or freezing.
- Always replace batteries at least once a year to protect against damage and corrosion from leaking batteries.
- If the home is unoccupied for a month or more (e.g., vacation homes), replace batteries as a preventive measure against battery failure.
- 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 the thermostat to sit flush against the back plate. Press the thermostat body firmly into the back plate. Ensure pins align correctly with the terminal board header on the back plate. Failure to do so could cause damage.
Turn the Power On
Restore power to all heating and cooling systems at the circuit breaker.
Connect the Thermostat to the System
Follow these steps to connect the thermostat to your Z-Wave system:
- Put the thermostat in OFF mode (no mode icons lit).
- Put the Z-Wave controller into inclusion mode. Refer to controller documentation for details.
- Press and hold the DOWN (⬇️) button on the thermostat to begin inclusion mode. Release when the RADIO (?) icon lights up.
- When the RADIO (?) icon becomes solid, the thermostat has been included.
- Login to your online account to complete thermostat configuration.
Configure The System
Thermostat configuration is done via your online account. Configure parameters like Heat Pump or Normal, number of heat/cool stages, heating fuel, calibration temperature, and configurable terminal (Z). Refer to page 9 for wiring diagrams during setup.
Default settings are usually sufficient, but advanced settings can be changed, including: Swing, Differential, Recovery Setting, Fan Circulation Period and Duty Cycle, Maximum Set Points, Minimum Set Points, Thermostat Lock, and Modes Enabled.
⚠️ WARNING: Use caution when changing advanced configuration settings. These should only be changed by those familiar with heating and cooling systems. Contact a local HVAC professional for help.
Check The System
⚠️ WARNING: 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
- Press the MODE (⚙️) button to select HEAT (?) mode.
- Press the UP (⬆️) button to raise the set point above room temperature.
- Wait 5 minutes for the system to turn on.
- After verifying the heating system is working, return the set point to the desired temperature.
To Check Cooling
- Press the MODE (⚙️) button to select COOL (❄️) mode.
- Press the DOWN (⬇️) button to lower the set point below room temperature.
- Wait 5 minutes for the system to turn on.
- After verifying the cooling system is working, return the set point to the desired temperature.
Operation
Display
- Press any button to wake the thermostat.
- The display shows the current mode and room temperature.
- Press UP (⬆️) or DOWN (⬇️) to display the current set point. The mode icon (? or ❄️) will pulse.
- Press UP (⬆️) or DOWN (⬇️) again to adjust the set point.
- Press the MODE (⚙️) button at any time to change the mode.
The modes are HEAT (?), COOL (❄️), AUTO, and OFF.
In AUTO mode, the brighter icon indicates the active set point (HEAT (?) or COOL (❄️)).
After 5 seconds, the display returns to the current room temperature with a solid mode icon. After another 5 seconds, the display turns off to conserve energy, but the thermostat continues to operate.
Troubleshooting
Manual Configuration of HVAC System on Thermostat
If necessary, set the system type (Normal or Heat Pump) directly on the thermostat:
- Put thermostat in OFF mode.
- Press and hold UP (⬆️) for 5 seconds until a version number displays.
- Press and hold UP (⬆️) again for 5 seconds until HVAC setup displays.
- Press UP (⬆️) or DOWN (⬇️) to select 'P2A2' for heat pump or 'C2H2' for normal.
- Press MODE (⚙️) to confirm your selection.
Heating or Cooling Doesn't Turn On
To prevent compressor damage, the thermostat has a delay. If the system should be on but isn't, change the set point 2 degrees beyond the current set point and wait 5 minutes. If it still doesn't turn on, contact a local HVAC professional.
Heat Pump Issues (Incorrect Heating/Cooling)
Heat pump reversing valves share a terminal. Ensure the thermostat is configured for the correct wire. Try switching the O/B configuration setting via your online account. Contact a local HVAC professional for further assistance. This also applies to heat pumps heating when they should be cooling.
Exclude the Thermostat From the Z-Wave Network
To exclude the thermostat from the network:
- Set the thermostat to OFF mode.
- Press and hold the exclude button on the Z-Wave controller (refer to controller documentation).
- Press and hold the DOWN (⬇️) button on the thermostat to enter exclusion mode. Release when the RADIO (?) icon lights up.
- When the RADIO (?) icon becomes solid, the thermostat is successfully excluded.
Batteries Drain Quickly
If a thermostat is included using a "C" Wire, its network information is saved and cannot be changed without re-exclusion/inclusion without the "C" Wire. This also applies to battery-powered thermostats.
If batteries drain unusually fast, ensure the "C"-Wire connection is intact. When included via "C" Wire, Z-Wave communication is always active, and the thermostat acts as a repeater. Removing the "C" Wire will cause rapid battery drain.
Notices
FCC NOTICE
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.
- 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 Class B digital device limits per FCC Rules, designed for reasonable protection against harmful interference in residential installations. The equipment generates, uses, and can radiate radio frequency energy. If not installed and used per instructions, it may cause harmful interference to radio communications. No guarantee of no interference in a particular installation. If interference occurs, try correcting it by:
- Reorienting or relocating the receiving antenna.
- Increasing separation between equipment and receiver.
- Connecting equipment to a different circuit than the receiver.
- Consulting a dealer or experienced radio/TV technician.
IC NOTICE
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved by Industry Canada. To reduce potential radio interference, antenna type and gain should be chosen such that equivalent isotropically radiated power (e.i.r.p.) is not more than 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.
Copyright © 2015 Alarm.com. All rights reserved. Alarm.com and the Alarm.com Logo are registered trademarks of Alarm.com.