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Honeywell Home T3 Pro Installation Instructions

Honeywell Home T3 Pro
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10
Specifications
Temperature Ranges
Heat: 32 °F to 90 °F (0 °C to 32.0 °C)
Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C)
Operating Ambient Temperature
32 °F to 102 °F (0 °C to 38.9 °C)
Shipping Temperature
20 °F to 120 °F (28.9 °C to 48.9 °C)
Operating Relative Humidity
5% to 90% (non-condensing)
Physical Dimensions in inches (mm) (H x W x D)
Thermostat: 3.86” H x 5.36” W x 1.08” D
(98 mm H x 136 mm W x 27.4 mm D)
Decorative Cover Plate – Small; size:
4.72” H X 5.9” W (120 mm H X 150 mm W)
Electrical Ratings
Terminal Voltage (50Hz/60Hz) Running Current
W Heating 20 Vac30 Vac 0.02 A1.0 A
W2 (Aux) Heating (TH3210U only) 20 Vac30 Vac 0.02 A1.0 A
E Emergency Heat (TH3210U only) 20 Vac30 Vac 0.02 A0.5 A
Y Compressor Stage 1 20 Vac30 Vac 0.02 A1.0 A
G Fan 20 Vac30 Vac 0.02 A0.5 A
O/B Changeover 20 Vac30 Vac 0.02 A0.5 A
Troubleshooting
If you have difficulty with your thermostat, please try the following suggestions. Most problems can be
corrected quickly and easily.
Display is blank Check circuit breaker and reset if necessary.
Make sure power switch for heating & cooling system is on.
Make sure furnace door is closed securely.
Make sure fresh AA alkaline batteries are correctly installed (see page 2).
Heating or cooling
system does not
respond
Press Mode button to set system Heat (see page 5). Make sure the desired
temperature is set higher than the inside temperature.
Press Mode button to set system Cool (see page 5). Make sure the desired
temperature is set lower than the inside temperature.
Check circuit breaker and reset if necessary.
Make sure power switch for heating & cooling system is on.
Make sure furnace door is closed securely.
Wait 5 minutes for the system to respond.
“Cool On” or
“Heat On” is
flashing
Compressor protection feature is engaged. Wait 5 minutes for the system to
restart safely, without damage to the compressor.
Aux heat runs in
cooling
For heat pump systems, verify there is not a wire attached to W on UWP systems.
See “Wiring heat pump systems” on page 4.
Cool runs with a
call for heat
For heat pump systems, verify there is not a wire attached to W on UWP systems.
See “Wiring heat pump systems” on page 4.

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Honeywell Home T3 Pro Specifications

General IconGeneral
BrandHoneywell Home
ModelT3 Pro
CategoryThermostat
LanguageEnglish

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