Optional Accessories - Lennox AC13 -018 Installation Instructions Manual

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THERMOSTAT OPERATION

Thermostat operations vary from one thermostat to

another. The following provides general operation

procedures. Refer to the user's information manual

provided with your thermostat for specific operation

details.

Temperature

Set the lever or dial to the desired temperature

Setting Levers

setpoints for both heating and cooling. Avoid

frequent temperature adjustment; turning the unit

off then back on before pressures can equalize

will put unusual stress on the unit's compressor.

Fan Switch

In AUTO or INT (intermittent) mode, the blower

operates only when the thermostat calls for heating

or cooling. This mode is generally preferred when

humidity control is a priority. The ON or CONT

mode

provides

operation, regardless of whether the compressor

or furnace is operating. This mode is required when

constant air circulation or filtering is desired.

System Switch

Set the system switch for heating, cooling or auto

operation. The auto mode allows the system to

automatically switch from heating mode to cooling

mode to maintain predetermined comfort settings.

Temperature

The temperature indicator displays the actual room

Indicator

temperature.

PROGRAMMABLE THERMOSTATS

Your

Lennox

system

programmable thermostat. These thermostats provide the

added feature of programmable time-of-day setpoints for

both heating and cooling. Refer to the user's information

continuous

indoor

blower

may

controlled

manual provided with your thermostat for detailed

programming and operation details.

PRESERVICE CHECK

If your system fails to operate, check the following before

calling for service:

Make sure all electrical disconnect switches are ON.

Make sure the room thermostat Temperature Selector

and System Switch (Heat, Cool, Auto) are properly

set.

Check for and replace any blown fuses, or reset any

tripped circuit breakers.

Make sure unit access panels are in place.

Make sure air filter is clean.

Write down the unit model number and have it handy

before calling.