Gas Furnaces
Products
 
 
Models
YM8M / YMLM

Capacities
60 - 120 MBH

Efficiency
80% AFUE

Warranty
Heat Exchanger - Lifetime
Other parts - 10-Year Limited*

 
80% Modulating PSC NG33 Gas Furnace (YM8M)

These compact units employ induced combustion, reliable hot surface ignition and high heat transfer aluminized tubular heat exchangers. The units are factory shipped for installation in upflow or horizontal applications and may be converted for downflow applications.

These furnaces are designed for residential installation in a basement, closet, alcove, attic, recreation room or garage and are also ideal for commercial applications. All units are factory assembled, wired and tested to assure safe dependable and economical installation and operation.


These units are Category I listed and may be common vented with another gas appliance as allowed by the National Fuel Gas Code.


PLEASE NOTE THAT THESE FURNACE MODELS HAVE BEEN DISCONTINUED AND LAST PRODUCTION HAS TAKEN PLACE.  SOME INVENTORY MAY BE AVAILABLE FOR SALE.


Special Benefits
  • Compact 33” Height and Standard Cabinet Widths
  • Multi-Position Design With Minimal Conversion Requirements
  • Airflow Leakage Rate of Less Than 1% of Total Airflow @ 1” ESP
  • PSC Four-Speed Direct Drive Motor with Large, Quiet Blower
  • Fully-Supported, Slide-Out Blower Assembly for Easy Service Access
  • Tubular Aluminized Steel Primary Heat Exchanger
  • High-Level Self-Diagnostic Controls With Fault Codes
  • Sharp Edges Have Been Eliminated By Folding and Flattening the Sheet Metal
  • Fully-Gasketed, Independent Access Doors With View Ports and Attractive Retail Appearance
  • All Models Are Propane Convertible
  • Lo-Nox Models Meet Specific Code Requirements

*Must be installed on or after May 1st, 2009, and registered online within 90 days of installation. Otherwise, the warranty reverts to the standard warranty as published in the product warranty certificate. This warranty does not apply to R-22 or 3-phase models.


Publications and Manuals
DescriptionPart NumberFile Size
Consumer Brochures
Consumer Brochure - YM8M - YMLM Modulating Gas Furnaces (80% AFUE) PUBL-6213-A-09091918 KB
 
Tech Guides
Technical Guide - YM8M/YMLM Affinity™ 80% AFUE Modulating Multi-Position 33" PSC Gas Furnaces 402695-YTG-C-0409164 KB
 
Installation Instructions
Installation Manual - 80% AFUE Modulating Multi-Position 33" PSC Gas Furnaces 368261-UIM-B-10082137 KB
 
Accessory Installation Instructions
Guide d' Installations - S1-1CT0302-636/S1-1CT0303-636 Terminaison D'Event Concentrique 435695-UAIF-A-110871 KB
Installation Accessory - 1BR0514/614, 1BR0517/617, 1BR0521/621 & 1BR0524/624 External Bottom Mount Filter Frame Acessory 506177-UAI-A-030937 KB
Installation Accessory - 1NP0680 Propane Conversion for Use With All Modulating Models With White Rodgers 36E27 Gas Valve 247589-UAI-F-0210114 KB
Installation Accessory - 1SR0402 Filter Frame 430731-UAI-A-090838 KB
Installation Accessory - S1-33102936001 (ECM) & S1-33102937001 (PSC) Control Board Kit for use with all Modulating 33” 80% and 97%+ Furnaces 035-22217-001-B-0110222 KB
Installation Accessory - S1-37327804001 RF Interference Service Kit 035-21358-001-A-050721 KB
Installation Accessory - S1-37327813001 Furnace Label Kit 341248-UAI-A-070711 KB
Installation Accessory - S1-37327905001 thru S1-37327905006 (2 Cell thru 7 Cell) 33" Burner Box Kits for all 33" Gas Furnaces 533818-UAI-B-021099 KB
 
Submittal Drawings
Submittal Data Sheet - YM8M/YMLM Affinity™ 80% AFUE Modulating Multi-Position 33" PSC Gas Furnaces 402699-YSD-B-1008118 KB
 
Repair Parts
Repair Parts - YM8M/YMLM Series Affinity™ 80% AFUE Modulating (PSC) Multi-Position 33" Natural Gas Furnaces "Style A" 035-22038-001-D-0609864 KB
 
User Manuals
User Manual - All Residential Multi-Position 33" Gas Furnaces 356486-UUM-I-08092386 KB
 
Miscellaneous
Reference Guide - 80% AFUE Modulating PSC Multi-Position 33" Gas Furnaces 407735-URG-B-0808301 KB