This thermostat is compatible with most HVAC systems, including the following:
• 24VAC systems Note: requires both the R and C wires unless battery powered.
• Standard gas/oil/electric heating systems
o 1 stage heating and cooling
o 2 stage heating and cooling
• Heat Pump systems:
o 1 stage heating and cooling
o 2 stage heating and cooling
o 2
nd
or 3
rd
stage Auxiliary heating (heat strips)
• Do NOT use for line voltage controls (120/240VAC)
The thermostat can be powered by batteries or 24VAC.
Battery Power
The thermostat can be powered by either two AA Alkaline batteries or four AA Alkaline
batteries. The thermostat will operate for approximately one year on two AA Alkaline
batteries depending on the frequency of user operations and backlight operation.
Operation on four AA Alkaline batteries will be approximately twice as long. Always use
Alkaline batteries and replace in complete sets (2 or 4) at a time with new batteries.
Z-Wave Operation when Battery Powered
Important Note: If the thermostat is installed on a Z-Wave network, while it is battery
powered, it will not work as a Z-Wave repeater.
24VAC Power
Powering the thermostat with 24VAC power requires both the C wire (24VAC common
wire - typically blue) and the R wire (24VAC hot wire - typically red). If the C wire is not
available, then batteries are required.
Note! If the thermostat is powered from 24VAC, batteries are not required.
Z-Wave Operation when 24VAC powered
If the thermostat is installed on a Z-Wave network while it is 24VAC powered, it operates
as an always-on Z-Wave repeater.
Installation Steps
• Remove old thermostat.
• Install TBZ48.
• Set up the thermostat for the HVAC system
• Enroll on ADT Pulse
®
Network
Remove old thermostat
• Turn off power. Usually at the heating/cooling system or circuit- breaker panel.
• Remove cover of old thermostat to expose the wiring terminals
• Take a picture of the wiring terminals! Note: This will help with
troubleshooting later if needed.
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