Optional Accessories; Start−Up And Performance Checklist - Lennox Dave Signature Collection XC15 Installation Instructions Manual

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Brochure & specs (4 pages)

Table of Contents

metal edges and corners while applying excessive

force or rapid motion can result in personal injury.

Cleaning of the outdoor unit's coil should be performed

by a trained service technician. Contact your dealer

and set up a schedule (preferably twice a year, but at

least once a year) to inspect and service your air

conditioning or heat pump system.

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 Setting Levers

desired temperature 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

continuous indoor blower 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,

XC15 Start−Up and Performance Checklist

Customer

Indoor Unit Model

Outdoor Unit Model

Notes:

START UP CHECKS

Refrigerant Type:

Rated Load Amps

Condenser Fan Full Load Amps

COOLING MODE

Suction Pressure:

Supply Air Temperature:

System Refrigerant Charge (Refer to manufacturer's information on unit or installation instructions for required subcooling and approach

temperatures.)

Subcooling:

Saturated Condensing Temperature (A)

Approach:

Indoor Coil Temperature Drop (18 to 22°F)

506044−01 06/08

Set the lever or dial to the

Liquid Pressure:

Ambient Temperature:

minus Liquid Line Temperature (B)

Liquid Line Temperature (A)

minus Outdoor Air Temperature (B)

Return Air Temperature (A)

minus Supply Air Temperature (B)

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 Indicator

displays the actual room temperature.

PROGRAMMABLE THERMOSTATS

Your

Lennox

programmable thermostat. These thermostats provide the

added feature of programmable time-of-day set points for

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

manual provided with your thermostat for 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 the system switch are properly set.

Replace any blown fuses, or reset circuit breakers.

Make sure unit access panels are in place.

Make sure air filter is clean.

Locate and record unit model number before calling.