Need Help - Honeywell RTH7400 Series Operating Manual

This manual covers the RTH7400 and RTH7500 models.
(Pull thermostat from wallplate and turn over to find model number)
This thermostat contains a Lithium battery which may contain Perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate
CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do
not operate cooling system when outdoor temperature is below SOT (10
o
C).
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US Patent No. 6,595,430; 7,114,554; 7,274,972; 7,225,054 and other patents pending
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