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TECHNICAL GUIDE
AFFINITY
MODELS: PS8*DH
GAS-FIRED
HIGH EFFICIENCY SINGLE STAGE
DOWNFLOW/HORIZONTAL FURNACES
STANDARD & Low NOx
NATURAL GAS
40 - 130 MBH INPUT
Due to continuous product improvement, specifications
are subject to change without notice.
Visit us on the web at www.york.com for the most
up-to-date technical information.
Additional rating information can be found at
www.gamanet.org.
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
279744-YTG-A-0407
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
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 applica-
tions. 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 (latest edition).
WARRANTY
20-year limited warranty on the heat exchanger.
10-year heat exchanger warranty on commercial applica-
tions.
5-year limited parts warranty.
FEATURES
• Downflow/Horizontal models may be easily applied
without any field conversion
• Top vent connection allows installation in narrow loca-
tions
• 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
cooling
• 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-in height allows installation in small space
confines
• All models are propane convertible
• Low NOx models have been designed to meet specific
code requirements.
• All models are propane convertible.