Trane TZEMT524AA21MA Installation Instructions And User Manual page 4

INSTALLATION GUIDE
8 Identify your system type
Assuming your existing thermostat is wired correctly, these steps will help you determine what type of equipment is installed in your
home. You will use this information when you program your 524 Control.
Your Indoor Unit Type is:
If you have any questions regarding your system equipment, consult a qualified HVAC professional before proceeding.
Your Indoor Heat Stages:
Your Outdoor Unit Type is:
4
INDOOR UNIT TYPE
You have an ELECTRIC
You have a
furnace or an
GAS furnace
air handler
Gas Electric
INDOOR HEAT STAGES
Observe the wires connected to your
existing thermostat and follow the decision tree.
Does NOT have
W2 wire label
1 Stage
OUTDOOR UNIT TYPE
Observe the wires connected to your
existing thermostat and follow the decision tree.
Existing thermostat
does NOT have a wire
connected to the
O or (B and C) terminal
AC
You have a
BOILER
You have a
BOILER and an
air handler
Hydronic
With Fan
Has a
W2 wire label
2 Stages
Existing thermostat
DOES have a wire
connected to the
O or (B and C) terminal
Heat
Pump
You have a
BOILER and a radiator
or baseboard heaters
Hydronic
Without Fan
CAUTION: EQUIPMENT
DAMAGE HAZARD
Improper system type selection can
lead to equipment damage and/
or high utility costs. Follow these
instructions to properly determine
and select the 524 Control to ensure
proper heating and cooling system
operation. If you are uncertain
about your equipment, please call a
qualified HVAC contractor.
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