Page 2 - The following requirements to be met:; SAFETY REQUIREMENTS
107272-UIM-B-1105 2 Unitary Products Group SPECIFIC SAFETY RULES AND PRECAUTIONS 1. U.S.....No. 1 or No. 2 heating oil only (ASTM D396), CANADA.....No. 1 stove oil or No. 2 furnace oil only are approvedfor use and can be burned in this furnace. Refer to the furnace rat-ing plate or SECTION IV of the...
Page 3 - cleaners or other cleaning tools.
107272-UIM-B-1105 Unitary Products Group 3 • Provide clearances from combustible materials as listed underFurnace Locations and Clearances. • Provide clearances for servicing, ensuring that service access isallowed for both the burners and blower. • These models are ETL listed and approved for insta...
Page 4 - As centralized with the air distribution as possible.; State and Local Approvals; CLOSET
107272-UIM-B-1105 4 Unitary Products Group CHECK CERTIFICATIONS / APPROVALS • Underwriters Laboratories has certified this burner to comply withANSI/UL 296 and has listed it for use with #1 or #2 fuel oil asspecified in ASTM D396. Low sulfur #1 and #2 fuel oils reduceheat exchanger deposits with all...
Page 5 - FIGURE 2: Dimensions; DFAH Series; Inches
107272-UIM-B-1105 Unitary Products Group 5 SECTION II: DUCTWORK DUCTWORK GENERAL INFORMATION The duct system’s design and installation must:1. Handle an air volume appropriate for the served space and withinthe operating parameters of the furnace specifications. 2. Be installed in accordance with st...
Page 6 - Air Distribution Systems; CLEARANCE REQUIREMENTS - CANADA
107272-UIM-B-1105 6 Unitary Products Group Use the example below to help you in calculating the duct area to deter-mine whether the ducts have sufficient area so that the furnace oper-ates at the specified external static pressure and within the airtemperature rise specified on the nameplate. Exampl...
Page 7 - Unitary Products Group; FIGURE 3: Air Distribution Systems; FIGURE 5: Furnace To Closet Door Clearance - 1” To 5”; MUST; FIGURE 6: Furnace To Closet Door Clearance - Less Than 1”
107272-UIM-B-1105 Unitary Products Group 7 FIGURE 3: Air Distribution Systems A Single trunk duct Dual trunk duct Transition duct 1 B* Dual trunk duct with crossover connector Crossover C Transition Duct with Branches Branches 3 1. Crossover Duct must be centered directly under furnace.2. Use 12” (3...
Page 8 - Make floor cut out as shown in Figure 8.; FIGURE 7: Duct Connector Dimensions; DUCT CONNECTOR DIMENSIONS; FIGURE 9: Duct Connector Depth; FIGURE 10: Duct Connector Screw Attachment; Supply Duct
107272-UIM-B-1105 8 Unitary Products Group DUCT CONNECTORS INSTALLATION OF SCREW ATTACHMENT DUCT CONNECTOR 1. Make floor cut out as shown in Figure 8. 2. Determine the depth of the floor cavity from the surface of the floorto the top of the supply air duct and select the appropriate ductconnector fr...
Page 9 - Furnace and Air Conditioner Installations; INSTALLATION OF THE FURNACE; Locator Bracket; All installations must have a filter installed.; NOTE: FOR BEST AIR DELIVERY INSTALL DAMPER
107272-UIM-B-1105 Unitary Products Group 9 INSTALLATION OF TAB ATTACHMENT DUCT CONNECTORS 1. Make floor cut out as shown in Figure 8. 2. Determine the depth of the floor cavity from the surface of the floorto the top of the supply air duct and select the appropriate ductconnector from the chart. 3. ...
Page 10 - Closet Installations; Fuel piping is not run in or through the return duct system.; BLEND AIR INSTALLATIONS; There are two types of downflow filter racks.; Floor
107272-UIM-B-1105 10 Unitary Products Group DFAH Furnaces: If a matching cooling coil is used, it may be placed directly on the fur-nace outlet and sealed to prevent leakage. Follow the coil instructionsfor installing the supply plenum. On all installations without a coil, aremovable access panel is...
Page 11 - SECTION IV: OIL PIPING; OIL SAFETY; Fuel Supply Level With or Above Burner; FIGURE 15: Furnace Air Filters; Fuel units with automatic bypass do not require a bypass plug.; TABLE 6: Burner Specifications
107272-UIM-B-1105 Unitary Products Group 11 IMPORTANT: Air velocity through throwaway type filters must notexceed 300 feet per minute (1.52 m/m). . . SECTION IV: OIL PIPING OIL SAFETY IMPORTANT INFORMATION: Long or oversized inlet lines may requirethe pump to operate dry during initial bleeding peri...
Page 12 - AFG; Cordset
107272-UIM-B-1105 12 Unitary Products Group NOTICE SPECIAL REQUIREMENTS THE EFFECT OF ELEVATION ON OIL BURNER FIRING The elevation of the installation of a modern high-speed flame retentionoil burner affects the performance of the burner. Allowance for elevationmust be taken into consideration when ...
Page 13 - SECTION V: ELECTRICAL POWER; Electrical Power Connections; Use copper conductors only.
107272-UIM-B-1105 Unitary Products Group 13 Follow information provided with the burner, the fuel pump, or the calcu-lation below to determine pipe size and length.L = Line Length in feetH = Head in feetQ = Firing rate in GPH3/8” (0.95 cm) line L = (6 - 0.75 x H) / 0.0086 x Q)1/2” (1.27 cm) line L =...
Page 14 - Connect low-voltage circuit to the wall thermostat pigtails.; SYSTEM; VENT AND COMBUSTION AIR SAFETY; BLK
107272-UIM-B-1105 14 Unitary Products Group NOTE: A burner with an electronic igniter or a PSC motor will have alower operating current. The actual load should be determined by a cur-rent meter. NOTE: See appliance manufacturer’s burner specifications for requiredoutlet pressure. Pressure is 100 psi...
Page 15 - Application; If this furnace replaces an existing furnace, do the following:; FIGURE 25: Elbow Assembly; Screen
107272-UIM-B-1105 Unitary Products Group 15 EXTERIOR ROOF JACK EXTENSION Application Available to comply with instances in which the roof jack crown needs tobe raised to meet a roof clearance requirement. One extension willraise the roof jack crown by 18” 45.7 cm). ROOF JACK EXISTING FURNACE REPLACE...
Page 16 - LOCATING AND CUTTING ROOF JACK OPENING; ovide protection for Vent Connector and Air-Intake Connector; Connect Roof Jack to Furnace; gasket if missing or damaged.; INTERIOR EXTENSIONS; FIGURE 26: Combustion Air Inlet Pipe; ” Pipe; FIGURE 28: Flue Shield Installation; Flue Shield
107272-UIM-B-1105 16 Unitary Products Group Alternate NOTE: Roof flashing, PVC pipe, PVC 90° elbows and fire stop are notsupplied with the furnace. LOCATING AND CUTTING ROOF JACK OPENING To facilitate the proper installation of the roof jack, it is very importantthat the roof jack opening in the cei...
Page 17 - Secure Roof Jack to Roof; Apply caulk or other sealant to underside of Roof Jack flashing.; Complete Installation, as required
107272-UIM-B-1105 Unitary Products Group 17 Models 4000B8161 and 4000B8181 have removable crowns. If using an optional interior extension, place extension down on furnacetop and mate with furnace flue and combustion air collar until it lines upwith screw holes in combustion air collar. Secure the ex...
Page 18 - FIGURE 30: Standard Roof Jack; Caulk All Around Swivel Joint with; IMPORTANT; The End of Upper Portion of Roof Jack need
107272-UIM-B-1105 18 Unitary Products Group FIGURE 30: Standard Roof Jack Warm Air Duct Duct Connector Roof 76" 59-1/2" Warm Air Duct Duct Connector FlueGases 19 1/2" FlueGases CombustionAir 19 1/2" CarefullySealant Supplied by Furnace Manufacturer. Caulk All Around Swivel Joint with...
Page 19 - FIGURE 31: Roof Jack With Removable Crowns
107272-UIM-B-1105 Unitary Products Group 19 FIGURE 31: Roof Jack With Removable Crowns DFAH FURNACES DFAA FURNACES INSTALLATION DIMENSIONS INSTALLATION DIMENSIONS “A” ADJUSTABLE HEIGHT “B” ADJUSTABLE HEIGHT 85” to 101” 99” to 129” 101” to 117” 115” to 145” 4000-9161/A 4000-9181/A 4000-8161/C 4000-81...
Page 20 - FIGURE 32: Installing Roof Jack Extension; Remove upper and lower cap.; EXTENSION; FIGURE 33: Ceiling Ring
107272-UIM-B-1105 20 Unitary Products Group VENT SYSTEM This furnace is a sealed combustion (direct vent) unit and is design cer-tified to use only a 4000 Series roof jack. These roof jacks are designedto exhaust flue products to the outside. INSTALLING CEILING RING The ceiling ring is to meet fire ...
Page 21 - FIGURE 34: Home Layout; Operable; Canadian Installations
107272-UIM-B-1105 Unitary Products Group 21 † A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. ‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the...
Page 22 - SECTION VII: SAFETY CONTROLS; CONTROL CIRCUIT FUSE; Cad Cell Resistance Check; X No Difference or Impact; END VIEW
107272-UIM-B-1105 22 Unitary Products Group FAN-ASSISTED COMBUSTION SYSTEM An appliance equipped with an integral mechanical means to eitherdraw or force products of combustion through the combustion chamberand/or heat exchanger. SECTION VII: SAFETY CONTROLS CONTROL CIRCUIT FUSE A 3-amp fuse is prov...
Page 23 - ADJUSTMENTS; TOOLS AND INFORMATION THAT WILL BE
107272-UIM-B-1105 Unitary Products Group 23 SPECIFICATIONS Models: Table 11 lists the major features and the applicable wiring diagram num-bers for the R7184. Timing: 1. Safe Start Check: 5 seconds (approximately) 2. Valve-on Delay: 15 seconds. 3. Burner motor-off Delay: 0, 2, 4, or 6 minutes. Field...
Page 24 - FIRE OR EXPLOSION HAZARD
107272-UIM-B-1105 24 Unitary Products Group IGNITION SYSTEM SEQUENCE 1. Turn the oil supply ON at external valve on the oil pump, and/or atthe oil tank. 2. Set the thermostat above room temperature to call for heat. 3. System start-up will occur as follows: a. The burner motor will start and come up...
Page 25 - Install Furnace Doors; Single Speed - No Coil
107272-UIM-B-1105 Unitary Products Group 25 APPLYING FILTER PRESSURE DROP TO DETERMINE SYSTEM AIRFLOW Example: For a 84,000 BTUH (38.06 kW) furnace with 1 return open-ings and operating on high-speed blower, it is found that total systemstatic is 0.30” w.c. (0.075 kPa). To determine the system airfl...
Page 28 - FIGURE 38: Wiring Diagram for DFAH - Oil Furnace
107272-UIM-B-1105 28 Unitary Products Group FIGURE 38: Wiring Diagram for DFAH - Oil Furnace
Page 29 - SECTION X: GAS GUN BURNER; PREPARATION OF COMBUSTION CHAMBER; Installation and Checking of Gas Line; FIGURE 39: Gas Piping
107272-UIM-B-1105 Unitary Products Group 29 SECTION X: GAS GUN BURNER These instructions were prepared for the guidance of those installingthis particular gas conversion burner. While they apply in principle to allinstallations, they should not be interpreted as meaning the only safeand economical w...
Page 30 - ) test dial and allowing 5 minutes to; Tee
107272-UIM-B-1105 30 Unitary Products Group The building structure should not be weak end by installation for the gaspiping. The piping should not be supported by the other piping, butshould be firmly supported with pipe hooks, straps, bands, or hanger.Butt or lap welded pipe should not be bent. The...
Page 31 - PROPANE AND HIGH ALTITUDE CONVERSION KITS
107272-UIM-B-1105 Unitary Products Group 31 A drip leg is required by some local codes to trap moisture and contam-inations. Refer to Figure 39 or 40.For natural gas operation, the furnace is designed for 7" W.C. inlet gaspressure. Pressure to main burner is then reduced to 3 1/2" W.C at the...
Page 32 - NATURAL GAS
107272-UIM-B-1105 32 Unitary Products Group Table shows 4% Input Reduction per 1,000 ft. (304.8 m) Elevation. Reference Source: NFPA No. 54, ANSI Z 223.1, National Fuel Gas Code.For Canadian high altitude {2000 - 4500 ft. (609.6 - 1,371.6)}, reduce gas manifold pressure to 3.0” w.c. (0.75 kPa) for N...
Page 33 - PURGING; Turn off all other gas appliances connected to the gas meter.
107272-UIM-B-1105 Unitary Products Group 33 SECTION XI: START-UP AND ADJUSTMENTS The initial start-up of the furnace requires the following additionalprocedures: IMPORTANT: All electrical connections made in the field and in the fac-tory should be checked for proper tightness. When the gas supply is...
Page 34 - The formula for US input calculation using a cubic foot gas meter:; NATURAL GAS INPUT CALCULATION
107272-UIM-B-1105 34 Unitary Products Group In the USA use the following formula to calculate the furnace input. For natural gas multiply the heat content of the gas BTU/SCF or Default 1030 BTU/SCF (38.4 MJ/m 3 ), times 2 cubic ft. (0.056 m) of gas measured at the gas meter, times a barometric press...
Page 35 - TABLE 20: Inlet Gas Pressure Range; TABLE 21: Nominal Manifold Pressure; Natural Gas; FIGURE 42: Gas Valve; Inlet; ON; Outlet
107272-UIM-B-1105 Unitary Products Group 35 INITIAL START UP 1. Read the applicable sequence of gas control operation in theOperation and Troubleshooting section before proceeding. 2. Move the gas valve control switch to the “OFF” position. 3. Adjust the primary air. Set the damper to the start up s...
Page 36 - Observing Burner Operation; ADJUSTMENT OF TEMPERATURE RISE; FIGURE 43: Reading Gas Pressure; Gas Valve
107272-UIM-B-1105 36 Unitary Products Group Observing Burner Operation 1. Observe burner to make sure it ignites. Observe color of flame. Onnatural gas the flame will burn blue with appreciably yellow tips.On Propane gas a yellow flame may be expected. If flame is notthe proper color call a qualifie...
Page 37 - Combustion efficiency is determined by the percent CO; OPERATION AND TROUBLESHOOTING; FIGURE 44: Electrode Orientation and Gap
107272-UIM-B-1105 Unitary Products Group 37 Combustion efficiency is determined by the percent CO 2 and the tem- perature of the flue gases. These two measurements are taken on thevent. Combustion efficiency and stack loss calculators are availablefrom several manufacturers of combustion test equipm...
Page 38 - SECTION XII: WIRING DIAGRAM - GAS CONVERSION BURNER; FIGURE 45: Wiring Diagram for DFAA - Gas Conversion Burner
107272-UIM-B-1105 38 Unitary Products Group SECTION XII: WIRING DIAGRAM - GAS CONVERSION BURNER FIGURE 45: Wiring Diagram for DFAA - Gas Conversion Burner
Page 39 - FIGURE 46: Wiring Diagram for DFAH - Gas Gun
107272-UIM-B-1105 Unitary Products Group 39 FIGURE 46: Wiring Diagram for DFAH - Gas Gun
Page 40 - Copyright; NOTES
Subject to change without notice. Printed in U.S.A. 107272-UIM-B-1105 Copyright © by York International Corp. 2005. All rights reserved. Supersedes: 107272-UIM-A-0905 Unitary 5005 Norman Product York OK Group Drive 73069 NOTES
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