Lennox International Inc 506510-01 XC17 Start−Up and Performance Checklist, Start UP Checks

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Outdoor Coil

The outdoor unit must be properly maintained to ensure its proper operation.

SPlease contact your dealer to schedule proper inspection and maintenance for your equipment.

SMake sure no obstructions restrict airflow to the outdoor unit.

SGrass clippings, leaves, or shrubs crowding the unit can cause the unit to work harder and use more energy.

SKeep shrubbery trimmed away from the unit and periodically check for debris which collects around the unit.

Routine Maintenance

In order to ensure peak performance, your system must be properly maintained. Clogged filters and blocked airflow prevent your unit from operating at its most efficient level.

1.Air Filter Ask your Lennox dealer to show you where your indoor unit’s filter is located. It will be either at the indoor unit (installed internal or external to the cabinet) or behind a return air grille in the wall or ceiling. Check the filter monthly and clean or replace it as needed.

2.Disposable Filter Disposable filters should be replaced with a filter of the same type and size.

NOTE If you are unsure about the filter required for your system, call your Lennox dealer for assistance.

3.Reusable Filter Many indoor units are equipped with reusable foam filters. Clean foam filters with a mild soap and water solution; rinse thoroughly; allow filter to dry completely before returning it to the unit or grille.

NOTE The filter and all access panels must be in place any time the unit is in operation.

4. Electronic Air Cleaner Some systems are

equipped with an electronic air cleaner, designed to remove airborne particles from the air passing through the cleaner. If your system is so equipped, ask your dealer for maintenance instructions.

5.Indoor Unit The indoor unit’s evaporator coil is equipped with a drain pan to collect condensate formed as your system removes humidity from the

inside air. Have your dealer show you the location of the drain line and how to check for obstructions. (This would also apply to an auxiliary drain, if installed.)

Thermostat Operation

See the ComfortSense® 7000 thermostat homeowner manual for instructions on how to operate your thermostat.

Preservice Check

If your system fails to operate, check the following before calling for service:

SVerify room thermostat settings are correct.

SVerify that all electrical disconnect switches are ON.

SCheck for any blown fuses or tripped circuit breakers.

SVerify unit access panels are in place.

SVerify air filter is clean.

SIf service is needed, locate and write down the unit model number and have it handy before calling.

Accessories

For update−to−date information, see any of the following publications:

SLennox XC17 Engineering Handbook

SLennox Product Catalog

SLennox Price Book

WARNING

This product and/or the indoor unit it is matched with may contain fiberglass wool.

Disturbing the insulation during installation, maintenance, or repair will expose you to fiberglass wool dust. Breathing this may cause lung cancer. (Fiberglass wool is known to the State of California to cause cancer.)

Fiberglass wool may also cause respiratory, skin, and eye irritation.

To reduce exposure to this substance or for further information, consult material safety data sheets available from address shown below, or contact your supervisor.

Lennox Industries Inc.

P.O. Box 799900

Dallas, TX 75379−9900

XC17 Start−Up and Performance Checklist

Customer

 

Address

 

 

Indoor Unit Model

 

 

Serial

 

 

 

 

 

 

 

 

 

Outdoor Unit Model

 

 

Serial

Notes:

 

 

 

 

 

 

 

START UP CHECKS

Refrigerant Type:

 

 

 

 

 

 

 

 

 

Rated Load Amps

 

 

 

Actual Amps

 

Rated Volts

 

Actual Volts

Condenser Fan Full Load Amps

 

Actual Amps:

 

 

 

COOLING MODE

 

 

 

 

 

 

 

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506510−01

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Contents Table of Contents GeneralShipping and Packing List AIR ConditionerUnit Dimensions − Inches mm and Parts Arrangement Side View Access ViewModel Number Identification Base with Elongated LegsPLUMBING, Switches and Sensor Components Typical Unit Parts ArrangementControl BOX Operating Gauge Set and Service Valves Using Manifold Gauge SETOperating Service Valves Torque RequirementsTo Access Service Port Operating Angle Type Service ValveOperating Ball Type Service Valve Reinstall Stem CapRecovering Recovering Refrigerant from Existing SystemNew Outdoor Unit Placement Clearance on ALL Sides Minimum Clearance Above UnitMinimum Clearance Between TWO Units Positioning ConsiderationsElevating the Unit Stabilizing Unit on Uneven SurfacesRoof Mounting Outside Unit Placement Elevated Slab Mounting using Feet ExtendersSlab Mounting at Ground Level Stabilizing Unit on Uneven SurfacesRemoving and Installing Panels Access Panel RemovalAccess and Louvered Louvered Panel InstallationNew or Replacement Line Set Refrigerant Line SETLine SET Brazing Flushing Flushing the SystemUncased Coil Shown Line SET and Indoor Coil 1Sensing Bulb Installation Equalizer Line InstallationFlushing Line SET and Indoor Coil 2 Leak Testing the System Installing Isolation GrommetsLeak Test Line SET and Indoor CoilEvacuating Evacuating the SystemSize Circuit and Install Disconnect 2INSTALL ThermostatElectrical 24VAC Transformer3ROUTE Control Wires 4ROUTE High Voltage and Ground WiresTypical XC17 Wiring Main Control Jumpers and Terminals Main Control AGEMain Control Jumpers and Terminals FANField Control Wiring Flat metal jumperOn−board link Connections for Testing and Charging Gauge SETServicing Units Delivered Void of Charge Unit Start−UpAirflow Indoor CoilAction Weigh Charge METHOD? Determine byRequirements Calculating System Charge for Outdoor Unit Void of ChargeApproach SubcoolingTest and Charge Method Operating and Temperature Pressures HFC−410A Temperature Fahrenheit PsigSystem Operation Test Pins Function Ambient Sensor Temperature / Resistance Range High Discharge Sensor Temperature / Resistance Range Sensor Temperature / Resistance Range Resetting LED Alert CodesMain Control LED Alert Codes System LED Alert CodesAlert Status Compressor LED Alert Codes Detected in RUN High Pressure Switch Operation Low Pressure Switch Operation High Discharge Temperature Sensor Operation Maintenance Verifying Jumper Settings J2FAN Motor Control and Start UP Verifying LED Status CodesLED Codes and Sequence of Operations Fan Motor Board Unit LED CodesControl Panel Testing for External Power to Fan Control Fan Motor Test FAN Motor Surge Protection Fan Motor Surge Protection DeviceXC17 Start−Up and Performance Checklist Cooling ModeStart UP Checks Subcooling