Honeywell PRO TH4000 Series Operating Manual page 2

CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate cooling system when outdoor
temperature is below 50°F (10°C).
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Quick Reference Card
Grasp and pull to see basic operating instructions at a glance.
This manual covers the following models:
TH4110D: For 1 Heat/1 Cool systems
TH4210D: For 2 Heat/1 Cool heat pump systems only
(Pull thermostat from wallplate and turn over to find model number.)
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