Goodman *MSS9* User Manual

5151 San Felipe Suite 500
Houston, TX 77056
www.goodmanmfg.com • www.amana-hac.com
© 2014 Goodman Manufacturing Company, L.P.
I NSTALLATION I NSTRUCTIONS FOR
*MSS9* & *CSS9*
S
INGLE -S TAGE G AS F URNACE
IOG-2009
08/14
(Type FSP CATEGORY IV Direct
or Non Direct Vent Air Furnace)
These furnaces comply with requirements em-
bodied in the American National Standard / Na-
tional Standard of Canada ANSI Z21.47·CSA-2.3
Gas Fired Central Furnaces.
Installer:
Affix all manuals
adjacent to the unit.
As a professional installer you have an obligation to know
the product better than the customer. This includes all safety
precautions and related items.
Prior to actual installation, thoroughly familiarize yourself
with this Instruction Manual. Pay special attention to all
safety warnings. Often during installation or repair it is
possible to place yourself in a position which is more
hazardous than when the unit is in operation.
Remember, it is your responsibility to install the product
safely and to know it well enough to be able to instruct a
customer in its safe use.
Safety is a matter of common sense...a matter of thinking
before acting. Most dealers have a list of specific good
safety practices...follow them.
The precautions listed in this Installation Manual are intended
as supplemental to existing practices. However, if there is
a direct conflict between existing practices and the content
of this manual, the precautions listed here take precedence.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS........................................... 3
SHIPPING INSPECTION ................................................. 4
E
LECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ........................ 4
T
O THE INSTALLER .................................................. 5
PRODUCT APPLICATION ............................................. 5
LOCATION REQUIREMENTS & CONSIDERATIONS ................ 6
C
LEARANCES AND A CCESSIBILITY ....................................... 7
E
XISTING FURNACE REMOVAL .......................................... 8
T
HERMOSTAT LOCATION ............................................... 9
C
OMBUSTION & VENTILATION A IR REQUIREMENTS ........................ 9
INSTALLATION POSITIONS .......................................... 9
HORIZONTAL APPLICATIONS & CONSIDERATIONS.............. 10
F
URNACE SUSPENSION ............................................... 10
FRONT COVER PRESSURE SWITCH TUBE LOCATION ..................... 10
DRAIN TRAP AND LINES ............................................. 10
L
EVELING .......................................................... 10
A
LTERNATE ELECTRICAL AND GAS LINE CONNECTIONS ................... 10
DRAIN PAN ........................................................ 10
FREEZE PROTECTION ................................................ 10
PROPANE GAS/HIGH ALTITUDE INSTALLATIONS ................ 10
VENT/FLUE PIPE & COMBUSTION AIR PIPE ..................... 11
D
UAL CERTIFICATION: NON-DIRECT/DIRECT VENT ..................... 11
MATERIALS AND JOINING METHODS ................................... 11
PROPER VENT/FLUE
AND
COMBUSTION A IR PIPING PRACTICES ........................... 12
TERMINATION LOCATIONS ............................................ 12
CANADIAN VENTING REQUIREMENTS ................................... 13
STANDARD FURNACE CONNECTIONS ................................... 13
VENT/INTAKE TERMINATIONS FOR INSTALLATION OF
MULTIPLE DIRECT VENT FURNACES ................................ 17
CONCENTRIC VENT TERMINATION ..................................... 18
SIDE WALL VENT KIT .............................................. 18
CONDENSATE DRAIN LINES & DRAIN TRAP ...................... 18
G
ENERAL DRAIN INFORMATION ........................................ 19
FIELD SUPPLIED DRAIN .............................................. 19
UPFLOW MODEL INSTALLED VERTICALLY ............................... 20
DRAIN EXITING RIGHT SIDE .......................................... 20
DRAIN EXITING LEFT SIDE ........................................... 20
UPFLOW MODEL INSTALLED HORIZONTALLY
WITH
RIGHT SIDE DOWN.......................................... 20
UPFLOW MODEL INSTALLED HORIZONTALLY
WITH
LEFT SIDE DOWN ........................................... 21
COUNTERFLOW MODEL INSTALLED VERTICALLY ......................... 21
DRAIN EXITING LEFT SIDE ........................................... 21
DRAIN EXITING RIGHT SIDE .......................................... 22
COUNTERFLOW MODEL INSTALLED HORIZONTALLY
WITH
RIGHT SIDE DOWN.......................................... 22
COUNTERFLOW MODEL INSTALLED HORIZONTALLY
WITH
LEFT SIDE DOWN ........................................... 22
is a registered trademark of Maytag Corporation or its related companies and is used
under license to Goodman Company, L.P., Houston, TX. All rights reserved.

Goodman *MSS9* Specifications

General

Brand	Goodman
Model	*MSS9*
Category	Furnace
Language	English

Summary

Safety Considerations

Shipping Inspection

Electrostatic Discharge (ESD) Precautions

To the Installer

Product Application

Location Requirements & Considerations

Clearances and Accessibility

Existing Furnace Removal

Thermostat Location

Combustion & Ventilation Air Requirements

Installation Positions

Horizontal Applications & Considerations

Furnace Suspension

Details on suspending the furnace from rafters or joists using specific hardware.

Pressure Switch Tube Relocation

Procedure to relocate the pressure switch tube for specific horizontal installations.

Drain Trap and Line Installation

Minimum clearance and slope requirements for drain trap and lines.

Furnace Leveling Requirements

Ensuring proper condensate drainage through leveling and tilt.

Alternate Electrical and Gas Connections

Provisions for electrical and gas line connections through side panels.

Drain Pan Requirements

Requirement for a drain pan when furnace is above a conditioned area.

Freeze Protection Guidelines

Reference to drain trap and lines section for freeze protection.

Propane Gas/High Altitude Considerations

Requirements for propane gas and high altitude conversions.

Vent/Flue Pipe & Combustion Air Pipe

Materials and Joining Methods

Specifies PVC and ABS pipe requirements, primer, and solvent cement.

Dual Certification: Non-Direct/Direct Vent

Explains furnace can be installed as single or dual pipe appliance.

Piping Practices and Termination Locations

Instructions for safe piping and guidelines for vent/flue terminations.

Non-Direct and Direct Vent Installations

Details for single/dual pipe installations and connection requirements.

Alternate Vent/Flue Location Provisions

Procedure for using alternate vent/flue locations and combustion air provisions.

Condensate Drain Lines & Drain Trap

General Drain Information

Details on drain trap installation and drain hose hookups.

Field Supplied Drain Instructions

Instructions for draining the furnace and air conditioning coil.

Upflow Model Drain Configurations

Specific drain connection procedures for upflow furnace installations.

Counterflow Model Drain Configurations

Specific drain connection procedures for counterflow furnace installations.

Electrical Connections

Wiring Harness and 115V Connections

Information on wiring harness and guidelines for 115V power supply.

Junction Box Relocation and Thermostat Wiring

Procedure for relocating junction box and wiring for 24V thermostats.

Single-Stage Heating Thermostat Application

Requirement for a single-stage thermostat for heating control.

Fossil Fuel Applications

Gas Supply and Piping

High Altitude Derate and Propane Conversion

Adjustments for high altitudes and instructions for propane gas conversion.

Gas Valve Operation

Information about the 24V gas valve and its operation.

Gas Piping Connections and Checks

Guidelines for connecting and verifying gas piping installations.

Propane Gas Tanks and Piping

Specifics for propane gas tanks, piping, and pressure requirements.

Gas Piping Connections

Gas Piping Checks

Circulating Air & Filters

Duct Work Design and Static Pressure Check

Proper duct design and procedure to measure external static pressure.

Return Air Openings and Filter Requirements

Method for return air openings and importance of filter installation.

Upright and Horizontal Filter Installations

Possible filter arrangements and locations for upright and horizontal installations.

Horizontal Installations

Filter installation requirements for horizontal furnace installations.

Startup Procedure & Adjustment

Drain Trap Priming and Furnace Operation

Ensuring proper drainage and initial furnace operation checks.

Furnace Startup and Shutdown Procedures

Step-by-step guides for initiating and safely turning off the furnace.

Gas Pressure Measurement and Adjustment

Procedures for measuring and adjusting gas supply and manifold pressures.

Gas Input Rate and Temperature Rise

Measuring gas input rate and ensuring correct temperature rise.

Circulator Blower Speeds

Cooling System Tonnage and Airflow Selection

Determining cooling tonnage and airflow requirements for blower speed selection.

Adjusting Blower Speeds and Heat Off Delays

Steps for selecting, adjusting speeds, and setting heat off delays.

Normal Sequence of Operation

Power Up, Heating, Cooling, and Fan Modes

Describes the operational sequences for different furnace modes.

Operational Checks and Safety

Operational Checks and Control Module Overview

Visual checks of burners and overview of the integrated control module.

Safety Circuit Description

Overview of safety circuits monitored by the integrated control module.

Troubleshooting Chart

Basic Diagnostics (No Signal, Steady On, Lockout)

Initial troubleshooting steps for basic furnace operational faults.

Pressure Switch and Induced Draft Issues

Diagnosing problems with pressure switches and induced draft blowers.

Limit Switch, Rollout, and Flame Sense Problems

Troubleshooting limit switches, rollout limits, and flame sensor signals.

Power Issues and Unusual Blower Operation

Addressing power polarity errors and continuous blower operation.

Repair and Replacement Parts

Wiring Diagram

Special Instructions for Massachusetts