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Honeywell RTH7400D - Old Thermostat Removal and Wiring

Honeywell RTH7400D
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5 69-1726—1
Step 2. Follow Important Instructions
1. Do not connect the wires to the new thermostat
based on wire color because damage can occur to
the heating and/or cooling system.
These Installation Instructions explain later how to
use the enclosed wire labels to correctly mark the
wires connected to your old thermostat.
M22034
Y
G
RC
W
OLD THERMOSTAT
RED
WHITE
YELLOW
ORANGE
GREEN
!
DO NOT WIRE
NEW THERMOSTAT
BASED ON
WIRE COLOR.
R

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