York M9E080B12 - User Manual

5715184-BIM-A-0519
SINGLE STAGE
MANUFACTURED HOUSING OR
MODULAR HOME GAS FURNACES
MODELS: MM9E Series - 33" - Shipped in Downflow Configuration
(95.0% AFUE Multi-Position)
INSTALLATION MANUAL
LIST OF SECTIONS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
CONDENSATE PIPING AND FURNACE
VENTING CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
COMBUSTION AIR AND VENT SYSTEM . . . . . . . . . . . . . . . . . . . 17
START-UP AND CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
NORMAL OPERATION AND DIAGNOSTICS . . . . . . . . . . . . . . . . .30
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . .32
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
LIST OF FIGURES
Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Attachment to Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Combustible Floor Base Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mobile Home Filter Frame Accessories . . . . . . . . . . . . . . . . . . . . . . . 7
Blend Air Installation (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Blend Air Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Downflow Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Furnace and Coil Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions (Upflow Configuration Shown) . . . . . . . . . . . . . . . . . . . . 9
Side Return Cutout Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Left Side Supply Gas Pipe Arrangement . . . . . . . . . . . . . . . . . . . . . 10
Upflow/Downflow Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Line Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Single Stage Heat Thermostat Connections . . . . . . . . . . . . . . . . . . 12
Accessory Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Typical Condensate Drain, Vertical Installation . . . . . . . . . . . . . . . .13
Upflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Downflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Elbow Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .21
Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . . . . .21
Double Horizontal Combustion Air Intake and Vent Termination . . .21
Double Vertical Combustion Air Intake and Vent Termination . . . . .21
Downward Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Direct Vent Air Intake Connection and Vent Connection . . . . . . . . .22
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . .23
Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . .24
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
LIST OF TABLES
Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cabinet and Duct Dimensions - MM9E . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended Filter Sizes (High Velocity 600 FPM) . . . . . . . . . . . . 9
Nominal Manifold Pressure - High Fire . . . . . . . . . . . . . . . . . . . . . . 11
Ratings and Physical/Electrical Data - MM9E . . . . . . . . . . . . . . . . . 12
Maximum Equivalent Pipe Length . . . . . . . . . . . . . . . . . . . . . . . . . . 18
High Altitude Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Elbow Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Equivalent Length of Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Combustion Air Intake and Vent Connection
Size at Furnace (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Unconfined Space Minimum Area in Square Inch . . . . . . . . . . . . . .23
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Gas Rate (CU FT/HR) at Full Input . . . . . . . . . . . . . . . . . . . . . . . . . .26
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Default Blower Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Blower Performance CFM - Any Position (Without Filter) - MM9E . .29
These high efficiency, compact units employ induced combustion, reli-
able hot surface ignition, and high heat transfer aluminized tubular heat
exchangers. The units are factory shipped for installation in downflow
applications and may be converted for upflow applications.
These furnaces are designed for residential installation in a basement,
closet, alcove, attic, recreation room, or garage. All units are factory
assembled, wired, and tested to ensure safe, dependable, and eco-
nomical installation and operation.
These units are Category IV listed and may not be common vented with
another gas appliance as allowed by the National Fuel Gas Code.

Summary

SECTION I: SAFETY

Safety Alert Definitions

Defines DANGER, WARNING, and CAUTION signal words used for potential hazards and injury.

Specific Safety Rules

Lists specific safety precautions for furnace installation and operation.

Fire and Explosion Hazard Warning

Warns about fire or explosion hazards, emphasizing leak testing with soap solution.

Mobile Home Installation Requirements

General Safety Requirements and Precautions

States compliance with codes and specific standards for furnace installation.

Combustion Air Quality and Contaminants

Codes and Standards Compliance

Lists national, local, and industry codes and standards for furnace installation.

Furnace Location and Clearances

Installation in Freezing Temperatures

SECTION II: DUCTWORK

Ductwork General Information

Duct System Sizing Warning

Emphasizes the importance of proper duct sizing to prevent overheating.

Upflow Ductwork and Supply Plenum Connection

Downflow Floor Base and Ductwork Installation

Upflow Return Plenum Connection

Downflow Return Plenum Connection

Downflow Venting Configuration

SECTION IV: GAS PIPING

Gas Piping Safety

Covers critical safety precautions for gas piping installation.

Gas Piping Installation Procedure

Provides instructions for connecting the gas supply piping to the furnace.

Propane Gas Conversion

Details the steps required to convert the furnace for propane gas.

High Altitude Gas Orifice Conversion

High Altitude Pressure Switch Conversion

SECTION V: ELECTRICAL POWER

Electrical Power Connections

Outlines requirements for connecting the furnace to the electrical supply.

Supply Voltage Connections

Low Voltage Control Wiring

Explains thermostat and accessory wiring connections.

SECTION VI: CONDENSATE PIPING AND FURNACE VENTING CONFIGURATION

Condensate Drain Location

Condensate Pan and Trap Caution

Condensate Drain Termination

Condensate Drain Freezing Warning

Advises on preventing condensate drain freezing with heat tape.

Liquid Anti-Freeze Warning

Warns against using liquid anti-freeze due to potential damage.

Upflow Condensate Drain Routing

Downflow Condensate Drain Routing

SECTION VII: COMBUSTION AIR AND VENT SYSTEM

Combustion Air and Vent Safety

Covers safety precautions for combustion air and vent system installations.

Combustion Air and Vent Pipe Sizing

Provides guidelines and tables for sizing combustion air and vent pipes.

Combustion Air and Vent Piping Assembly

Provides a step-by-step procedure for assembling the combustion air and vent piping.

Combustion Air;Venting Requirements

Direct Vent Terminal Clearances

Specifies required clearances for direct vent terminal locations.

Sidewall Termination Considerations

Vent System Configurations

Vent Applications and Termination

Provides guidelines for selecting vent termination locations.

Condensation in Intake Pipe Warning

Warns about condensate formation in intake pipes and its prevention.

Downward Venting Procedure

Combustion Air Supply

Outlines requirements for supplying combustion air, especially for mobile homes.

Supply Air and Venting Hazard

Warns about insufficient air supply causing carbon monoxide.

Combustion Air Source - Outdoors

Category I Furnace Venting Warning

Air Supply Openings and Ducts

Combustion Air Source from Outdoors Calculations

Carbon Monoxide Poisoning Hazard

Provides critical steps to follow to prevent carbon monoxide poisoning.

SECTION VIII: START-UP AND CHECKS

Hot Surface Ignition System Warning

Warns against attempting to light the furnace manually.

Gas Piping Leak Check

Details the procedure for checking gas piping for leaks.

Calculating Furnace Input (Natural Gas)

Explains how to calculate the furnace's natural gas input rate.

Verify Manifold Gas Pressure and Input Rate

Guides on measuring and verifying gas pressure and input rate.

Read Inlet Gas Pressure

Instructions for connecting a manometer to read inlet gas pressure.

Read Manifold Gas Pressure

Instructions for connecting a manometer to read manifold gas pressure.

AIRFLOW SETTINGS

Cooling Airflow Settings

Continuous Fan Airflow Setting

Gas Heating Airflow Settings

Temperature Rise Measurement

Guides on measuring temperature rise and adjusting blower speed.

Temperature Rise Danger

Warns of hazards associated with exceeding maximum supply air temperature.

Fan Control Setting Adjustments

SECTION IX: SAFETY CONTROLS

Blower Door Safety Switch

Rollout Switch Controls

Describes rollout switches and their purpose in safety.

Pressure Switches

Explains the function of pressure switches and conditions that cause them to de-energize the gas valve.

Limit Controls

SECTION X: NORMAL OPERATION AND DIAGNOSTICS

Normal Operation Sequence

Ignition System Sequence

Troubleshooting Checks

Furnace Control Diagnostics

Explains the furnace's self-diagnostic capability and LED fault codes.

Safety Control Bypass Warning

Warns against bypassing any safety control for furnace operation.

SECTION XII: WIRING DIAGRAM

Servicing Safety Caution

Advises opening all disconnects before servicing the unit.

Servicing Safety Precaution

Advises opening all disconnects before servicing the unit.

SECTION XIII: START UP SHEET

Installation Connections Checklist

Condensate Management Checklist

Venting Checklist

Line Voltage Electrical Checklist

Low Voltage Electrical Checklist

Gas Side Checklist

Air Side Static Pressure Checklist

Air Side Heating Checklist

Air Side Cooling Checklist

Air Side Continuous Fan Checklist

Cycle Test Checklist

York M9E080B12 Specifications

General

Model	M9E080B12
Heating Capacity	80, 000 BTU
Blower Motor Type	ECM
Fuel Type	Natural Gas
Warranty	10-year limited warranty
Vent Diameter	2 inch
Ignition Type	Hot Surface