York DFAA - Manual

York DFAA

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Table of Contents:

  • Page 2 – The following requirements to be met:; SAFETY REQUIREMENTS
  • Page 3 – cleaners or other cleaning tools.
  • Page 4 – As centralized with the air distribution as possible.; State and Local Approvals; CLOSET
  • Page 5 – FIGURE 2: Dimensions; DFAH Series; Inches
  • Page 6 – Air Distribution Systems; CLEARANCE REQUIREMENTS - CANADA
  • 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”
  • 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
  • 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
  • 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
  • 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
  • Page 12 – AFG; Cordset
  • Page 13 – SECTION V: ELECTRICAL POWER; Electrical Power Connections; Use copper conductors only.
  • Page 14 – Connect low-voltage circuit to the wall thermostat pigtails.; SYSTEM; VENT AND COMBUSTION AIR SAFETY; BLK
  • Page 15 – Application; If this furnace replaces an existing furnace, do the following:; FIGURE 25: Elbow Assembly; Screen
  • 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
  • Page 17 – Secure Roof Jack to Roof; Apply caulk or other sealant to underside of Roof Jack flashing.; Complete Installation, as required
  • Page 18 – FIGURE 30: Standard Roof Jack; Caulk All Around Swivel Joint with; IMPORTANT; The End of Upper Portion of Roof Jack need
  • Page 19 – FIGURE 31: Roof Jack With Removable Crowns
  • Page 20 – FIGURE 32: Installing Roof Jack Extension; Remove upper and lower cap.; EXTENSION; FIGURE 33: Ceiling Ring
  • Page 21 – FIGURE 34: Home Layout; Operable; Canadian Installations
  • Page 22 – SECTION VII: SAFETY CONTROLS; CONTROL CIRCUIT FUSE; Cad Cell Resistance Check; X No Difference or Impact; END VIEW
  • Page 23 – ADJUSTMENTS; TOOLS AND INFORMATION THAT WILL BE
  • Page 24 – FIRE OR EXPLOSION HAZARD
  • Page 25 – Install Furnace Doors; Single Speed - No Coil
  • Page 28 – 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
  • Page 30 – ) test dial and allowing 5 minutes to; Tee
  • Page 31 – PROPANE AND HIGH ALTITUDE CONVERSION KITS
  • Page 32 – NATURAL GAS
  • Page 33 – PURGING; Turn off all other gas appliances connected to the gas meter.
  • Page 34 – The formula for US input calculation using a cubic foot gas meter:; NATURAL GAS INPUT CALCULATION
  • Page 35 – TABLE 20: Inlet Gas Pressure Range; TABLE 21: Nominal Manifold Pressure; Natural Gas; FIGURE 42: Gas Valve; Inlet; ON; Outlet
  • Page 36 – Observing Burner Operation; ADJUSTMENT OF TEMPERATURE RISE; FIGURE 43: Reading Gas Pressure; Gas Valve
  • Page 37 – Combustion efficiency is determined by the percent CO; OPERATION AND TROUBLESHOOTING; FIGURE 44: Electrode Orientation and Gap
  • Page 38 – 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
  • Page 40 – Copyright; NOTES
Loading the manual

107272-UIM-B-1105

HIGH EFFICIENCY SEALED COMBUSTION
DRUM HEAT EXCHANGER SERIES

MODEL: DFAA/DFAH
(Oil and Gas Conversion Burner/
Single Stage Downflow Only)

66 - 84 MBH INPUT
(19.34 - 24.62 KW) INPUT

INSTALLATION MANUAL

EFFICIENCY
RATING
CERTIFIED

ISO 9001

Certified Quality

Management System

For Installation In:

1.

Manufactured (Mobile) Homes

2.

Recreational Vehicles & Park Models

3.

Modular Homes & Buildings

SECTION I: SAFETY

This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.

Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.

DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.

Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.

This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.

LIST OF SECTIONS

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
OIL PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
VENT/COMBUSTION AIR SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . 14

SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
WIRING DIAGRAM - OIL-FIRED FURNACE . . . . . . . . . . . . . . . . . . . . 27
GAS GUN BURNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
WIRING DIAGRAM - GAS CONVERSION BURNER . . . . . . . . . . . . . . 38

LIST OF FIGURES

Label Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Air Distribution Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Closet To Door Clearance - 5” or Greater . . . . . . . . . . . . . . . . . . . . . . . . . 7
Furnace To Closet Door Clearance - 1” To 5” . . . . . . . . . . . . . . . . . . . . . . 7
Furnace To Closet Door Clearance - Less Than 1” . . . . . . . . . . . . . . . . . . 7
Duct Connector Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommended Floor Cut-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Duct Connector Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Duct Connector Screw Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Duct Connector Tab Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Anti-Backflow Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation of Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Furnace Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
One-Pipe System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Two-Pipe System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Solenoid Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Line Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring for Heat Only Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring for Electronic Heat-Cool Thermostat . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring for Standard Heat-Cool Thermostat . . . . . . . . . . . . . . . . . . . . . . . 14

Wiring for Blend Air Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Elbow Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Combustion Air Inlet Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Combustion Air Inlet Pipe Alternate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Flue Shield Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Roof Jack Attachment to Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Standard Roof Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Roof Jack With Removable Crowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Installing Roof Jack Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ceiling Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrode Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Wiring Diagram for DFAA - Oil-Fired Furnace . . . . . . . . . . . . . . . . . . . . . 27
Wiring Diagram for DFAH - Oil Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Manual Shut-off Valve/Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Proper Piping Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Electrode Orientation and Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Wiring Diagram for DFAA - Gas Conversion Burner . . . . . . . . . . . . . . . . . 38
Wiring Diagram for DFAH - Gas Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Minimum Duct Sizing For Proper Airflow . . . . . . . . . . . . . . . . . . . . . . . 6
Round Duct Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
External Static Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Filter Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Burner Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Burner Rating at Elevation Above Sea Level, gph (l/m) . . . . . . . . . . . 12
Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Roof Jack Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cad Cell Resistance When Sensing Flame . . . . . . . . . . . . . . . . . . . . 22

Timings and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Burner Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Filter Performance - Pressure Drop Inches W.C. and (kPa) . . . . . . . .24
Blower Performance CFM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Replacement Parts - Non Electrical . . . . . . . . . . . . . . . . . . . . . . . . . .26
Gas Line Piping Size and Length . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Length of Standard Pipe Threads in Inches (mm) . . . . . . . . . . . . . . .30
High Altitude Duration Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Gas Burner Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

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Summary

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...

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