Honeywell RTH2510 Operating Manual page 2

This manual covers the RTH2510 and RTH2410 models.
CAUTION: EQUIPMENT DAMAGE HAZARD
To prevent possible compressor damage, do not use Cooling mode when the
outdoor temperature is below 50 °F (10 °C).
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or call Honeywell Customer Care toll-free at 1-800-468-1502.
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