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Need help?Do you have a question about the Amana *MEC96 and is the answer not in the manual?
Specifies required distances from combustible materials for safe operation.
Details airflow (CFM) based on various DIP switch configurations.
Diagnostic codes indicated by amber LED for troubleshooting.
Diagnostic codes indicated by green LED for troubleshooting.
Diagnostic codes indicated by red LED for troubleshooting.
Specifies required distances from combustible materials for safe operation.
Details airflow (CFM) based on various DIP switch configurations.
Diagnostic codes indicated by amber LED for troubleshooting.
Diagnostic codes indicated by green LED for troubleshooting.
Diagnostic codes indicated by red LED for troubleshooting.
This document describes the *MEC96 34.5" 2-Stage Multi-Speed ECM Gas Furnace, which boasts up to 96% AFUE (Annual Fuel Utilization Efficiency). This furnace is designed for residential and light commercial heating applications, providing efficient and reliable warmth. It is available in both Amana® and Goodman® brands, offering flexibility in choice.
The furnace's primary function is to convert natural gas into heat, which is then distributed throughout a building via a forced-air system. It achieves high efficiency through its two-stage operation and multi-speed ECM (Electronically Commutated Motor) blower. The two-stage gas valve allows the furnace to operate at a lower capacity (first stage) for most heating demands, conserving energy and providing more consistent temperatures. When demand increases, it can switch to full capacity (second stage) to quickly meet the heating load. The multi-speed ECM blower motor further enhances efficiency by precisely controlling airflow, ensuring optimal heat distribution and minimizing energy consumption. This precise control also contributes to quieter operation compared to traditional single-speed motors.
The furnace is designed for flexible installation, supporting both upflow/horizontal and downflow/horizontal configurations. This adaptability makes it suitable for various home layouts and existing ductwork systems. The unit's compact dimensions, with cabinet widths ranging from 14" to 24.5", allow for installation in tight spaces, such as closets or utility rooms.
Key usage features include its compatibility with ComfortNet™ thermostats, which enable advanced control and diagnostics. The variable-speed ECM motor, when paired with a ComfortNet™ system, can provide enhanced humidity control and improved indoor air quality by continuously circulating air at low speeds. For simpler installations, a multi-speed ECM or single-speed motor option is also available, offering different levels of performance and cost.
The furnace incorporates several safety features to ensure reliable and secure operation. These include a hot surface igniter for reliable ignition, pressure switches to monitor proper venting, and primary and auxiliary limit controls to prevent overheating. A flame sensor confirms the presence of a flame, and a front cover pressure switch ensures the access panel is securely closed before operation. The unit also includes a blower compartment door switch, which disables operation when the door is open, protecting users during maintenance.
For maintenance and troubleshooting, the furnace is equipped with diagnostic LEDs that provide error codes. These codes help qualified technicians quickly identify and resolve issues, minimizing downtime. The red LED indicates various fault conditions, such as flame sensing errors, pressure switch issues, open limit switches, and external lockouts. The amber LED provides information on flame sense current and normal operation during different heating stages. The green LED indicates standby mode and normal operation during fan or cooling calls. This diagnostic system simplifies the troubleshooting process, making it more efficient for service personnel.
The furnace's design also considers ease of access for servicing. A 24" front clearance is recommended for servicing or cleaning, allowing technicians ample space to access internal components. Unit connections for electrical, flue, and drain may necessitate greater clearances, and accessibility clearance always takes precedence over minimum enclosure clearances.
The unit's construction includes provisions for condensate drainage, with exterior connections for a drain trap. The vent/flue pipe can be either 2" or 3" in diameter, depending on the furnace input, number of elbows, length of run, and installation configuration. An optional combustion air pipe can also be installed, depending on local code requirements.
The furnace is designed to operate on a 115 VAC, 60 Hz, single-phase electrical supply. It requires proper sizing of fuses and wires, and electrical connections must comply with the National Electrical Code and all existing local codes. The minimum circuit ampacity and maximum overcurrent protection device ratings are specified to ensure safe electrical operation.
The airflow tables provided in the manual detail the CFM (Cubic Feet per Minute) and temperature rise for various DIP switch settings, allowing technicians to optimize airflow for specific applications and ductwork configurations. These tables are crucial for ensuring proper heat distribution and comfort. The ability to adjust airflow settings provides flexibility to adapt the furnace's performance to different system requirements.
Overall, this gas furnace is a high-efficiency heating solution with advanced features for comfort, safety, and ease of maintenance. Its two-stage operation, multi-speed ECM blower, and comprehensive diagnostic system make it a reliable and energy-efficient choice for modern heating needs.
General| AFUE | 96% |
|---|---|
| Fuel Type | Natural Gas |
| Blower Motor | Variable Speed |
| Vent Type | Direct Vent |
| Heating Capacity | 120, 000 BTU/h |
| Warranty | 10-Year Parts |
