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Maytag Amana MEC96 Series User Manual

Maytag Amana MEC96 Series
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Our continuing commitment to quality products may mean a change in specications without notice.
Ā© 2014-2019 Goodman Company, L.P.
5151 San Felipe St., Suite 500, Houston, TX 77056
www.goodmanmfg.com • www.amana-hac.com
*MEC96 & *CEC96
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IOG-2011Q
06/2019
(Type FSP CATEGORY IV Direct
or Non Direct Vent Air Furnace)
(Type FSP CATƉGORIE IV Direct
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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 your-
self 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
ī™…ī™ˆī™‰ī™’ī™•ī™ˆī˜ƒ ī™„ī™†ī™—ī™Œī™‘ī™Šī˜‘ī˜ƒ ī˜°ī™’ī™–ī™—ī˜ƒ ī™‡ī™ˆī™„ī™ī™ˆī™•ī™–ī˜ƒ ī™‹ī™„ī™™ī™ˆī˜ƒ ī™„ī˜ƒ ī™ī™Œī™–ī™—ī˜ƒ ī™’ī™‰ī˜ƒ ī™–ī™“ī™ˆī™†ī™Œī›€ī™†ī˜ƒ ī™Šī™’ī™’ī™‡ī˜ƒ
safety practices...follow them.
The precautions listed in this Installation Manual are in-
tended as supplemental to existing practices. However,
ī™Œī™‰ī˜ƒī™—ī™‹ī™ˆī™•ī™ˆī˜ƒī™Œī™–ī˜ƒī™„ī˜ƒī™‡ī™Œī™•ī™ˆī™†ī™—ī˜ƒī™†ī™’ī™‘ī›ī™Œī™†ī™—ī˜ƒī™…ī™ˆī™—ī™šī™ˆī™ˆī™‘ī˜ƒī™ˆī™›ī™Œī™–ī™—ī™Œī™‘ī™Šī˜ƒī™“ī™•ī™„ī™†ī™—ī™Œī™†ī™ˆī™–ī˜ƒī™„ī™‘ī™‡ī˜ƒ
the content of this manual, the precautions listed here
take precedence.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
*NOTE: Please contact your distributor or our website
ī™‰ī™’ī™•ī˜ƒī™—ī™‹ī™ˆī˜ƒī™„ī™“ī™“ī™ī™Œī™†ī™„ī™…ī™ī™ˆī˜ƒī˜¶ī™“ī™ˆī™†ī™Œī›€ī™†ī™„ī™—ī™Œī™’ī™‘ī˜ƒī˜¶ī™‹ī™ˆī™ˆī™—ī˜ƒī™•ī™ˆī™‰ī™ˆī™•ī™•ī™ˆī™‡ī˜ƒī™—ī™’ī˜ƒī™Œī™‘ī˜ƒī™—ī™‹ī™Œī™–ī˜ƒ
manual.
These furnaces comply with requirements
embodied in the American National
Standard / National Standard of Canada
ANSI Z21.47Ā·CSA-2.3 Gas Fired Central
Furnaces.
O
NLY
PERSONNEL
THAT
HAVE
BEEN
TRAINED
TO
INSTALL
,
ADJUST
,
SERVICE
OR
REPAIR
(
HEREINAFTER
, ā€œ
SERVICE
ā€)
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
SHOULD
SERVICE
THE
EQUIPMENT
. T
HE
MANUFACTURER
WILL
NOT
BE
RESPONSIBLE
FOR
ANY
INJURY
OR
PROPERTY
DAMAGE
ARISING
FROM
IMPROPER
SERVICE
OR
SERVICE
PROCEDURES
. I
F
YOU
SERVICE
THIS
UNIT
,
YOU
ASSUME
RESPONSIBILITY
FOR
ANY
INJURY
OR
PROPERTY
DAMAGE
WHICH
MAY
RESULT
. I
N
ADDITION
,
IN
JURISDICTIONS
THAT
REQUIRE
ONE
OR
MORE
LICENSES
TO
SERVICE
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
,
ONLY
LICENSED
PERSONNEL
SHOULD
SERVICE
THE
EQUIPMENT
. I
MPROPER
INSTALLATION
,
ADJUSTMENT
,
SERVICING
OR
REPAIR
OF
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
,
OR
ATTEMPTING
TO
INSTALL
,
ADJUST
,
SERVICE
OR
REPAIR
THE
EQUIPMENT
SPECIFIED
IN
THIS
MANUAL
WITHOUT
PROPER
TRAINING
MAY
RESULT
IN
PRODUCT
DAMAGE
,
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
.
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
Brand is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.

Table of Contents

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Maytag Amana MEC96 Series Specifications

General IconGeneral
CategoryFurnace
Fuel TypeGas
EfficiencyUp to 96% AFUE
Heat Exchanger WarrantyLimited Lifetime
BrandMaytag
SeriesMEC96
Blower MotorVariable Speed
Heat ExchangerStainless Steel
StagesTwo-Stage
Parts Warranty10 Years

Summary

Safety Considerations and Warnings

Fire or Explosion Hazard Warning

General warning about potential fire or explosion due to improper safety practices.

Frozen and Burst Water Pipe Hazard Caution

Caution regarding potential property damage from freezing water pipes.

Improper Installation Safety Warning

Warning about severe consequences of incorrect installation, adjustment, or service.

Shipping Inspection Procedure

Electrostatic Discharge (ESD) Precautions

Steps to discharge static electricity before touching sensitive electronic components.

Installer Instructions

Product Description and Application

Location Requirements and Considerations

Installation Hazards Warning

Warning about potential property damage, injury, or death from improper installation practices.

Clearances and Accessibility Guidelines

Vent Termination Clearances

Carbon Monoxide Poisoning Hazard Warning (Venting)

Detailed steps for safe venting system operation testing to prevent CO poisoning.

Existing Furnace Removal Process

Thermostat Location and Environment

Combustion and Ventilation Requirements

Ensuring adequate fresh air for proper combustion and ventilation.

Horizontal Installation Considerations

Furnace Suspension Methods

Instructions and diagrams for suspending furnaces from structural elements.

Drain Trap and Lines in Horizontal Setup

Guidance on securing and sloping condensate drain traps for horizontal installations.

Vent/Flue Pipe and Combustion Air Pipe

Improper Venting Bodily Injury/Death Warning

Warning about severe risks associated with improper vent/flue pipe installation.

Materials and Joining Methods

Solvent Cement Hazards Warning

Caution regarding hazards of using solvent cements near ignition sources.

Proper Vent/Flue Piping Practices

Guidelines for sizing, securing, and sloping vent/flue and combustion air piping.

Termination Locations

Canadian Vent Pipe Requirements

Specific requirements for vent pipe and combustion air pipe installations in Canada.

Standard Furnace Connections

Vent/Flue Pipe Installation Details

Details on securing vent/flue pipe to furnace fitting and routing considerations.

Non-Direct Vent Installations

Alternate Vent/Flue Location

Instructions for using an alternate vent/flue location on upflow models.

Down Venting Upflow Model Furnaces

Alternate Combustion Air Provision

Instructions for using an alternate opening for combustion air on upflow/horizontal models.

Vent/Flue Pipe Terminations

Direct Vent (Dual Pipe) Piping

Guidelines for routing and terminating dual pipe systems for direct vent furnaces.

Vent/Flue and Combustion Air Pipe Terminations

Condensate Drain Lines and Drain Trap

Upflow Model Installed Vertically

Drain Exiting Right Side Instructions

Step-by-step guide for routing the drain hose on the right side of the cabinet.

High Voltage Electrical Warning

Critical warning regarding electrical shock hazards and grounding requirements.

Upflow Model Installed Horizontally

Drain Exiting Left Side Instructions

Step-by-step guide for routing the drain hose on the left side of the cabinet.

Alternate Upflow Horizontal Installation

Counterflow Model Installed Vertically

Information on drain exit locations for counterflow models.

Drain Exiting Procedures

Drain Exiting Left Side (Figure 26)

Specific instructions for drain exit on the left side, focusing on coupling.

Drain Exiting Right Side (Figure 27)

Detailed steps for drain exit on the right side, including hose and trap mounting.

Counterflow Horizontal Installation

Counterflow Horizontal Left Side Down

Instructions for horizontal counterflow installation with left side down.

Electrical Connections Overview

Wiring Harness Information

Details on wire color coding, replacement, and routing for the wiring harness.

115 Volt Line Connections

Guidelines for connecting 115V power supply, including circuit requirements.

Thermostat Wiring

Single-Stage Heating Thermostat Application

Using a single-stage thermostat with the furnace, including transition delays.

Accessory Connections and Gas Supply

115V Accessory Connections

Connecting optional accessories like humidifiers and air cleaners to the furnace control.

High Altitude Derate Requirements

Requirement for high altitude installations to use specific orifice kits for proper operation.

Propane Conversion and Gas Piping

Propane Gas Conversion Procedure

Instructions and warnings for converting the furnace from natural gas to propane gas.

Gas Piping Connections Guidelines

Guidelines for sizing, connecting, and supporting gas piping according to codes.

Propane Gas Tanks and Piping Safety

Gas Leak Detection Warning

Recommendation for gas detecting warning devices in basements or confined spaces.

Circulating Air and Ductwork

Checking Duct Static Pressure

Procedure for measuring and verifying static pressure in ductwork.

Combustion Products in Air Supply Warning

Critical warning to prevent combustion products from entering the air supply.

Filter Specifications and Selection

Filter Installation and Maintenance

Bottom Return Air Opening Instructions

Instructions on creating and preparing the bottom return air opening on upflow models.

Startup Procedure and Adjustment

Drain Trap Priming Requirement

Critical step to prime the drain trap before furnace startup to ensure drainage.

Furnace Operation Sequence

Steps for purging gas lines and checking for leaks before furnace startup.

Gas Pressure Measurement and Adjustment

Gas Supply Pressure Measurement

Procedure for measuring and verifying inlet gas supply pressure.

Gas Manifold Pressure Adjustment Caution

Caution regarding minor adjustments to gas valve pressure regulator for manifold pressure.

DIP Switch Settings Configuration

Gas Input Rate and Temperature Rise

Gas Input Rate Measurement

Procedure for measuring the actual gas input rate using the gas meter.

Temperature Rise Adjustment

How to measure and adjust temperature rise for proper heat exchanger operation.

Circulator Blower Speed Selection

Information on selecting and adjusting circulator blower speeds for optimal airflow.

Furnace Operation Sequences

Power Up and Initialization

Initial startup sequence for the furnace control module and status indicators.

Heating Mode Sequence

Detailed step-by-step description of the furnace's operation in heating mode.

Cooling Mode and Safety Circuits

Cooling Mode Sequence

Sequence of operations for the furnace when operating in cooling mode.

Safety Circuit Overview

Overview of safety circuits and their functions in monitoring furnace operation.

Integrated Control Module Function

Description of the electronic control module and its diagnostic capabilities.

Limit Controls Description

Description of primary, auxiliary, and rollout limit controls.

Pressure Switches and Flame Sensor

Function of pressure switches and the flame sensor in furnace operation.

Troubleshooting and Fault Codes

Limit Fault Codes Explanation

Explanation of fault codes indicated by LED flashes related to limit circuits.

Diagnostic Chart Reference

Reference to a chart for diagnosing operational problems based on symptoms and codes.

Fault Recall and Lockout Reset

Fault Recall Procedure

Procedure for retrieving stored fault codes from the control module.

Resetting from Lockout

Methods to reset the furnace from a lockout condition, including automatic and manual resets.

Maintenance Recommendations

Annual Inspection Checklist

Scope of annual inspections for safe and proper furnace operation.

Filter Maintenance Importance

Importance of filter maintenance for performance and filter types.

Burner Inspection Guidelines

Visual inspection guidelines for burner flames during the heating season.

Condensate System and Parts

Condensate Trap and Drain System Service

Annual inspection and maintenance of condensate trap and drain system for proper drainage.

Repair and Replacement Parts Information

Information on ordering functional parts, including model and serial number requirements.

Troubleshooting Chart

Wiring Diagram

Massachusetts Specific Installation Instructions

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