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When a project calls for quality, high-efficiency light commercial heating and cooling, look to York for innovative, cost-effective systems.
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Printable Version
Gas Furnaces
GY8S-DH/LY8S-DH

Tonnage Capacities
40 - 130 MBH

Efficiency
80% AFUE

Warranty
Heat Exchanger - 20 Years
Other parts - 5 Years


Latitude 80% Single Stage Downflow/Horizontal Gas Furnace

These high efficiency, downflow/horizontal compact units employ induced combustion, reliable hot surface ignition and high heat transfer tubular heat exchangers.


These furnaces are designed for residential installation in a closet, attic or garage and are 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 ANSI Z223.1.



Special Benefits
  • Downflow/Horizontal models may be easily applied without any field conversion.
  • Top vent connection allows installation in narrow locations.
  • Electronic hot surface ignition with high reliability and dependability.
  • 100% shut off main gas valve for added safety.
  • High quality inducer motor for quiet operation.
  • Standard terminals for controlling humidifiers & EAC's.
  • 40 VA control transformer, fuse protected.
  • Easy to connect power and control wiring.
  • Efficiency ratings of 80 AFUE attained by using tubular heat exchangers.
  • Cooling relay standard for easy installation of add-on coolings.
  • Blower off delay for cooling SEER improvement.
  • Multi-speed PSC, direct drive blower motors to match cooling requirements.
  • Adjustable fan-off settings to eliminate "cold-blow".
  • Compact 40" height allows installation in small space confines.
  • Models are propane convertible.
  • LoNox models available to meet specific area requirements.
  • LoNox models are not propane convertible.

Publications and Manuals
DescriptionPart NumberFile Size
Tech Guides
Technical Guide - GY8S/LY8S*DH Latitude™ High Efficiency Single Stage Natural Gas Fired Furnaces (40-130 MbH) 279747-YTG-A-0407 218 KB PDF
Submittal Drawings
Submittal Data Sheet - GY8S/LY8S*DH Latitude™ Induced Draft Mid-Efficiency Single Stage Gas Furnace 264292-YSD-D-1206 61 KB PDF
Repair Parts
Repair Parts - GY8S/LY8S-DH 80% AFUE Single Stage Natural Gas Furnace "Style B" 035-20832-001-C-1106 166 KB PDF
Repair Parts - GY8S/LY8S-DH 80% AFUE Single Stage Natural Gas Furnaces "Style C & Some B" 035-21292-001-A-1206 181 KB PDF
Repair Parts - GY8S-DH, LY8S-DH 80% AFUE Natural Gas Furnace "Style A" 035-20823-001-B-1205 330 KB PDF
Repair Parts - LY8S-DH 80% AFUE Lo-Nox Gas Furnace "Style A" 035-20796-001-A-1005 111 KB PDF
User Manuals
User Manual - GY8S/LY8S*DH & GM8S/LM8S*DH Single Stage High Efficiency Tubular Heat Exchanger Series 268895-UUM-A-0407 458 KB PDF
Furnace Air Conditioning Heat Pumps Packaged System Air Handlers Evaporator Coil Indoor Air Quality Furnace Air Conditioning Heat Pumps Packaged System Air Handlers Evaporator Coil Indoor Air Quality




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