Honeywell RTH4300B Manuel d'utilisateur télécharger pdf (Page 8)

Operating Manual

About your new thermostatSelect the sytstem setting

The SYSTEM switch can be set to control

your heating or cooling system, depend-

ing on the season.

• Cool: Cooling system control.

• Off: All systems are off.

• Heat: Heating system control.

Set SYSTEM switch to control the

heating or cooling system.

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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Honeywell RTH4300B Manuel d'utilisateur Page 8