Amana AMV9, ACV9 installation instructions Xix. Maintenance

Page 34
XIX. MAINTENANCE

step 2 before touching control or wires.

4.Discharge your body to ground before removing a new control from its container. Follow steps 1 through 3 if installing the control on a furnace. Return any old or new controls to their containers before touching any ungrounded object.

DIAGNOSTIC CHART

Manual backgroundWARNING

TO AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY SERVICE OR MAINTENANCE.

Refer to the Troubleshooting Chart at the end of this manual for assistance in determining the source of unit operational problems. The red diagnostic LED blinks to assist in troubleshooting the unit. The number of blinks refers to a specific fault code.

RESETTING FROM LOCKOUT

Furnace lockout results when a furnace is unable to achieve igni- tion after three attempts. It is characterized by a non-functioning furnace and a one flash diagnostic LED code. If the furnace is in “lockout”, it will (or can be) reset in any of the following ways.

1.Automatic reset. The integrated control module will automatically reset itself and attempt to resume normal operations following a one hour lockout period.

2.Manual power interruption. Interrupt 115 volt power to the furnace for 0 - 20 seconds.

3.Manual thermostat cycle. Lower the thermostat so that there is no longer a call for heat then reset to previous setting. Interrupt thermostat signal to the furnace for 0 - 20 seconds.

NOTE: If the condition which originally caused the lockout still exists, the control will return to lockout. Refer to Section XVIII, Troubleshooting - Diagnostic Chart for aid in determining the cause.

XIX. MAINTENANCE

Manual backgroundWARNING

TO AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY MAINTENANCE. IF YOU MUST HANDLE THE IGNITER, HANDLE WITH CARE. TOUCHING THE IGNITER ELEMENT WITH BARE FINGERS, ROUGH HANDLING, OR VIBRATION COULD DAMAGE THE IGNITER RESULTING IN PREMATURE FAILURE. ONLY A QUALIFIED SERVICER SHOULD EVER HANDLE THE IGNITER.

ANNUAL INSPECTION

The furnace should be inspected by a qualified installer, or service agency at least once per year. This check should be performed at the beginning of the heating season. This will ensure that all fur- nace components are in proper working order and that the heating system functions appropriately. Pay particular attention to the fol- lowing items. Repair or service as necessary.

Flue pipe system. Check for blockage and/or leakage. Check the outside termination and the connections at and internal to the furnace.

Heat exchanger. Check for corrosion and/or buildup within the heat exchanger passageways.

Burners. Check for proper ignition, burner flame, and flame sense.

Drainage system. Check for blockage and/or leakage. Check hose connections at and internal to furnace.

Wiring. Check electrical connections for tightness and/or corrosion. Check wires for damage.

Filters.

FILTERS

Manual backgroundCAUTION

TO ENSURE PROPER UNIT PERFORMANCE, ADHERE TO THE FILTER SIZES

GIVEN IN THE RECOMMENDED MINIMUM FILTER SIZE TABLE OR

PRODUCT DATA BOOK APPLICABLE TO YOUR MODEL*.

MAINTENANCE

Improper filter maintenance is the most common cause of inad- equate heating or cooling performance. Filters should be cleaned (permanent) or replaced (disposable) every two months or as re- quired. When replacing a filter, it must be replaced with a filter of the same type and size.

FILTER REMOVAL

Depending on the installation, differing filter arrangements can be applied. Filters can be installed in either the central return register or a side panel external filter rack (upflow only). A media air filter or electronic air cleaner can be used as an alternate filter. Follow the filter sizes given in the Recommended Minimum Filter size table to ensure proper unit performance.

To remove filters from an external filter rack in an upright upflow installation, follow the directions provided with external filter rack kit. To remove internal filters see Internal Filter Removal section. Internal filters are an accessory item and are not included with your furnace. For further details, see your distributor.

HORIZONTAL UNIT FILTER REMOVAL

Filters in horizontal installations are located in the central return register or the ductwork near the furnace.

To remove:

1.Turn OFF electrical power to furnace.

2.Remove filter(s) from the central return register or ductwork.

3.Replace filter(s) by reversing the procedure for removal.

4.Turn ON electrical power to furnace.

MEDIA AIR FILTER OR ELECTRONIC AIR CLEANER REMOVAL

Follow the manufacturer’s directions for service.

BURNERS

Visually inspect the burner flames periodically during the heating season. Turn on the furnace at the thermostat and allow several minutes for flames to stabilize, since any dislodged dust will alter the flames normal appearance. Flames should be stable, quiet, soft, and blue (dust may cause orange tips but they must not be yellow). They should extend directly outward from the burners with- out curling, floating, or lifting off. Flames must not impinge on the sides of the heat exchanger firing tubes.

INDUCED DRAFT AND CIRCULATOR BLOWERS

The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No further lubrication is required. Check motor windings for accumulation of dust which may cause overheating. Clean as necessary.

*NOTE: Please contact your distributor or our website for the applicable product data book referred to in this manual.

34

Image 34
Contents INSTALLATION INSTRUCTIONS RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTIONATTENTION INSTALLING PERSONNEL Installer Affix all manuals adjacent to the unitTable of Contents APPENDIX Table of ContentsCARBON MONOXIDE POISONING HAZARD WHAT TO DO IF YOU SMELL GASUpflow/Horizontal BLOWER COMPARTMENT BURNER COMPARTMENTBURNER COMPARTMENT BLOWER COMPARTMENT Counterflow/HorizontalII. SAFETY III.PRODUCT APPLICATIONIV. LOCATION REQUIREMENTS & CONSIDERATIONS Suspended Furnace 5.3.1General Thermostat InfluencesV. COMBUSTION & VENTILATION AIR REQUIREMENTS 5.3.2Equipment Located in Unconfined SpacesBuilding. See 5.3.3-a 5.3.5 Louvers and Grilles 5.3.4Specially Engineered InstallationsVI. INSTALLATION POSITIONS VII. HORIZONTAL APPLICATIONS & CONSIDERATIONSVIII. PROPANE GAS /HIGH ALTITUDE INSTALLATIONS Recommended Installation PositionsIX. VENT/FLUE PIPE & COMBUSTION AIR PIPE Vent Termination Clearances 2.Upflow and Counterflow units Vent/Flue Pipe CutsCounterflow units 3.Upflow and Counterflow unitsCounterflow units 7.Upflow and Counterflow units8.Upflow and Counterflow units Counterflow unitsAlternate Combustion Air Intake Location Vertical Termination Single PipeHorizontal Termination Single Pipe Alternate Vertical Termination Single PipeUPFLOW Horizontal Termination Single PipeLevel Dual Pipe Standard Horizontal Terminations Dual PipeAlternate Horizontal Vent Termination Dual Pipe Dual PipeUpflow Shown, Counterflow Similar Hose and Tube IdentificationUpright “Standard” Connections - Right Side Upright “Standard” Connections - Left SideHorizontal Connections - Right Side Down Upright “Alternate” Connections - Right Side OnlyUpflow Shown, Counterflow Similar Upflow Shown, Counterflow SimilarUpflow Shown, Counterflow Similar Horizontal Connections - Left Side DownXI. ELECTRICAL CONNECTIONS Two-StageHeating with Two-StageCooling 24 VOLT THERMOSTAT WIRING24 VOLT DEHUMIDISTAT WIRING Junction Box RelocationXII. GAS SUPPLY AND PIPING Inlet Gas Supply Pressure Gas Piping Connections Propane Gas Piping Chart Propane Gas Installation TypPropane Gas Piping Chart XIII. CIRCULATING AIR & FILTERSPermanent Minimum Filter Area sq. in Duct Flange Cut OutsBased on a 600 ft/min filter face velocity XIV. STARTUP PROCEDURE & ADJUSTMENT Filter LocationsMeasuring Inlet Gas Pressure Alt. Method Temperature Rise Measurement ramping profile XV. NORMAL SEQUENCE OF OPERATION Furnace awaits next call from thermostat XVIII. TROUBLESHOOTINGXVII. SAFETY CIRCUIT DESCRIPTION XVI. OPERATIONAL CHECKSXIX. MAINTENANCE XXII. REPAIR & REPLACEMENT PARTS XXI. BEFORE LEAVING AN INSTALLATIONXX. INTERNAL FILTER REMOVAL Auxiliary Limit Switch Rollout Limit SwitchPrimary Limit Switch Pressure SwitchFault Descriptions TROUBLESHOOTING CHARTSymptoms of Abnormal Possible CausesFault Descriptions TROUBLESHOOTING CHARTSymptoms of Abnormal Possible CausesWIRING DIAGRAM 2550 North Loop West, Suite Houston, TX