Wiring Colors; Install Back Panel; Single Transformer System - Ecolink Z-Wave TBZ500 Installation & Operation Manual

Wiring Colors

While the thermostat terminal markings are intended to match the wire color, (R=RED, G=GREEN, W=WHITE, Y=YELLOW) be sure
to follow the terminal marking when marking the wires, even if the wire color doesn't match.
WARNING: If the existing thermostat is a mercury-containing device, it must be disposed of in compliance with
federal, state, and local regulations. Many states and/or local agencies have collection or exchange programs or
hazardous waste collection programs for mercury containing devices.
For more information, see the U.S. Environmental Protection Agency website at:
http://www.epa.gov/osw/hazard/wastetypes/universal/mce.htm
For Canada: Environment Canada and Disposing of Mercury Products at:
https://www.ec.gc.ca/mercure- mercury/default.asp?lang=En&n=F111AAC6-1
Install the Back Panel
Remove the back panel of the thermostat by gently prying back panel from the thermostat.
• Mount the thermostat base to the wall using the wall anchors and screws provided.
• Level as needed.
• Connect the wires according to the HVAC system type as below.
Standard Gas/Electric HVAC System Wiring
Single stage heating and cooling
R vs RC and RH Connections:
Single Transformer HVAC Systems.
Typical modern central HVAC installations have a integrated heating and cooling system with a single 24VAC transformer. For
these systems, there is only one 24VAC "R" wire and it can connect to either the RC or RH terminal on the thermostat. The
thermostat is supplied with an RC-RH jumper installed. Do not remove the jumper for common transformer HVAC systems.
Copyright © Ecolink Intelligent Technology
TBZ500_manual_8_5x5_5_inch Combined_RDN1240221.indd 7
C*
G
W Y
R
Factory installed RC and RH jumper
Connect the wires as marked from the HVAC
system to the corresponding terminals on
the thermostat back.
*C wire (24VAC common) may not be
present. If not, batteries must be installed.
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