Blue
Red
Green
Black/
brown
Separate Transformer HVAC Systems.
Some installations may have separate heating and cooling systems with separate 24VAC transformers. For those
systems there will be a separate “R” wire for the heating system (RH) and cooling system transformers (RC).
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connect the heating “R” wire to the RH terminal and the cooling “R” wire to the RC terminal on the
thermostat.
Thermostat Setup:
Standard Gas/Electric HVAC Systems
•
For Single Stage Heat/Cool Systems:
Go to the Menu screen by pressing and holding the FAN button for 5 seconds Press the down arrow to select
the SYSTEM menu and press Select.
Set the following:
•
SYSTEM TYPE: Set to STANDARD
•
FAN TYPE:
Set to
GAS
for typical gas furnace (fan is controlled by the furnace) Set to
ELECTRIC
for electric heat (fan on with heat call)
For Two Stage Heat/Cool Systems:
•
Go to ADVANCED SYSTEMS SETTINGS menu.
•
From the
Setup menu
screen, press and hold the Fan and Down arrow buttons for 5 seconds.
Use the Down arrow button to select the following:
-
2ND STAGE HEAT ENABLE:
Enable second stage heating output If a single stage heating system,
leave this set to N
If a 2 stage heating system, set to
Y
to enable.
-
2ND STAGE COOL ENABLE: Enable second stage cooling output
If a single stage cooling system, leave this set to
N
.
If a two stage cooling system, set to
Y
to enable.
Copyright © Ecolink Intelligent Technology
TBZ500_manual_8_5x5_5_inch Combined_RDN1240221.indd 8 24-02-2021 18:55
Factory installed RC/RH jumper
For single transformer systems, connect R wire
to either RC or RH terminal. They are connected
together by the factory installed jumper.
For systems with separate heating & cooling
transformers, connect Heating R to RH and
Cooling R to RC. NOTE! REMOVE THE FACTORY
INSTALLED RC/RH JUMPER.
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