York DFAA, DFAH installation manual Combustion AIR Quality List of Contaminants, Inspection

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107272-UIM-B-1105

Provide clearances from combustible materials as listed under Furnace Locations and Clearances.

Provide clearances for servicing, ensuring that service access is allowed for both the burners and blower.

These models are ETL listed and approved for installation into a Modular Home or a Manufactured (Mobile) Home.

Failure to carefully read and follow all instructions in this manual can result in furnace malfunction, death, personal injury and/or property damage.

Furnaces for installation on combustible flooring shall not be installed directly on carpeting, tile or other combustible material other than wood flooring.

Check the rating plate and power supply to be sure that the elec- trical characteristics match. All models use nominal 115 VAC, 1 Phase, 60-Hertz power supply. DO NOT CONNECT THIS APPLI-

ANCE TO A 50 HZ POWER SUPPLY OR A VOLTAGE ABOVE 130 VOLTS.

Furnace shall be installed so the electrical components are pro- tected from water.

Installing and servicing heating equipment can be hazardous due to the electrical components and the oil fired components. Only trained and qualified personnel should install, repair, or service oil heating equipment. Untrained service personnel can perform basic maintenance functions such as cleaning and replacing the air filters. When working on heating equipment, observe precau- tions in the manuals and on the labels attached to the unit and other safety precautions that may apply.

NOTICE SPECIAL REQIREMENTS

This equipment must be installed, adjusted, and started only by a qualified service agency - an individual or agency, licensed and experienced with all codes and ordinances, who is responsible for the installation and adjustment of the equipment. The installation must comply with all local codes and ordinances and with the latest revision of the National Fire Protection Association Standard NFPA31 (or CSA B139).

These instructions cover minimum requirements and conform to exist- ing national standards and safety codes. In some instances these instructions exceed certain local codes and ordinances, especially those who have not kept up with changing Modular Home and Manu- factured (Mobile) Home construction practices. These instructions are required as a minimum for a safe installation.

COMBUSTION AIR QUALITY (LIST OF CONTAMINANTS)

The furnace will require OUTDOOR AIR for combustion when the fur- nace is located in any of the following environments.

Restricted Environments

Commercial buildings

Buildings with indoor pools

Laundry rooms

Hobby or craft rooms

Near chemical storage areas

Chemical exposure

The furnace will require OUTDOOR AIR for combustion when the fur- nace is located in an area where the furnace is being exposed to the fol- lowing substances and / or chemicals.

Permanent wave solutions

Chlorinated waxes and cleaners

Chlorine based swimming pool chemicals

Water softening chemicals

De-icing salts or chemicals

Carbon tetrachloride

Halogen type refrigerants

Cleaning solvents (such as perchloroethylene)

Printing inks, paint removers, varnishes, etc.

Hydrochloric acid

Cements and glues

Antistatic fabric softeners for clothes dryers

Masonry acid washing materials

When outdoor air is used for combustion, the combustion air intake duct system termination must be located external to the building and in an area where there will be no exposure to the substances listed above.

The furnace area must not be used as a broom closet or for any other storage purposes, as a fire hazard may be created. Never store items, such as the following, on, near or in contact with the furnace.

1.Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners or other cleaning tools.

2.Soap powders, bleaches, waxes or other cleaning com- pounds; plastic items or

3.Containers, gasoline, kerosene, cigarette lighter fluid, dry cleaning fluids or other volatile fluid.

4.Paint thinners and other painting compounds.

5.Paper bags, boxes or other paper products

Never operate the furnace with the blower door removed. To do so could result in serious personal injury and/or equipment damage.

INSPECTION

As soon as the furnace and/or accessories are received, it should be inspected for damage during transit. If damage is evident, the extent of the damage should be noted on the carrier’s freight bill. A separate request for inspection by the carrier’s agent should be made in writing. Also, before installation, the furnace and/or accessories should be checked for screws or bolts which have loosened in transit, or shipping and spacer brackets that need to be removed.

CONCEALED DAMAGE - If you discover damage to the burner or controls during unpacking, notify carrier at once and file the appro- priate claim.

WHEN CONTACTING BECKETT FOR SERVICE INFORMATION - Please record the burner serial number (and have available when calling or writing). You will find the serial number on the Underwrit- ers Laboratories label, located on the left rear of the burner, or cover mounting plate. See Figure 1.

Unitary Products Group

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Contents List of Figures Section I SafetyFor Installation List of SectionsSpecific Safety Rules and Precautions Safety RequirementsFollowing requirements to be met Inspection Combustion AIR Quality List of ContaminantsPiping FLOOR/BOTTOM Check Certifications / ApprovalsFurnace Location and Clearances TOP Front Back Sides AIR Inlet Roof Jack DUCT1Duct system’s design and installation must Section II DuctworkDuctwork General Information Clearance Requirements Canada Duckwork InstallationAir Distribution Systems Duct Design CanadaAir Distribution Systems Installation of Screw Attachment Duct Connector Duct ConnectorsMBH CFM Installation of TAB Attachment Duct ConnectorsFurnace and Air Conditioner Installations Installation of the FurnaceBlend AIR Installations Section III FiltersReturn AIR Requirements OIL Safety Section IV OIL PipingConnect Fuel Lines AFG Installation and Checking of OIL PipingEffect of Elevation on OIL Burner Firing ExampleONE Pipe System Section V Electrical PowerSolenoid Wiring Electrical Power ConnectionsSection VI VENT/COMBUSTION AIR System LOW Voltage Control Wiring ConnectionsVent and Combustion AIR Safety Eighteen gauge thermostat wire is highly recommendedExterior Roof Jack Extension Existing Furnace ReplacementNEW Home Installation Installation in Snow RegionsInterior Extensions Installing Roof Jack in RoofConnect Roof Jack to Furnace Locating and Cutting Roof Jack OpeningInterior Extension Complete Installation, as requiredRoof Jack Adjustable Height with Secure Roof Jack to RoofDfaa Models Dfah Models UIM-B-1105 Installing Ceiling Ring Vent SystemVent Clearances Home Layout Canadian Installations1 US Installation2 Section VII Safety Controls Section Viii START-UP Adjustments SpecificationsSTART-UP and Adjust Burner SET Combustion with Instruments Adjustment of OIL Pump PressureAdjustment of Temperature Rise Ignition System SequenceDetermine System Airflow Final ProcedureInstall Furnace Doors Applying Filter Pressure Drop toDfaa Model Item Number DescriptionDfah Model Wiring Diagram for Dfaa Oil-Fired Furnace Section IX Wiring Diagram OIL-FIRED FurnaceUIM-B-1105 Wiring Diagram for Dfah Oil Furnace Unitary Products GroupGAS Piping Installation of Burner and ControlsSection X GAS GUN Burner Preparation of Combustion ChamberLength of Pipe Nominal Diameter of Pipe in Inches mm Testing Piping for LeaksGAS Piping Installation Locate GAS LEAKS, USE a Soap SolutionHigh Altitude GAS Orifice Conversion GAS Orifice Conversion for Propane LPGas Firing Rate Orifice Air Shutter Sizing Furnace InputNatural GAS Propane GASSection XI START-UP Adjustments PurgingCalculating the Furnace Input Natural GAS USA use the following formula to calculate the furnace input Inlet GAS Pressure Range Adjustment of Manifold GAS PressureInitial Start UP Checking the GAS PressuresObserving Burner Operation If Furnace Fails to Operate ProperlyPerformance Check Electrode Orientation and Gap Section XII Wiring Diagram GAS Conversion Burner Wiring Diagram for Dfah Gas Gun Copyright by York International Corp . All rights reserved Unitary 5005 Norman Product York Group Drive 73069