TECHNICAL GUIDE
AFFINITY
MODELS: PS8
GAS-FIRED
HIGH EFFICIENCY SINGLE STAGE
DOWNFLOW FURNACES
80% AFUE
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
This product was manufactured
in a plant whose quality system
is certified/registered as being
in conformity with ISO 9001.
036-21610-001 Rev. A (0804)
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
These high efficiency, dedicated downflow 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.
WARRANTY
20-year limited warranty on the heat exchanger.
10-year heat exchanger warranty on commercial applica-
tions.
5-year limited parts warranty.
FEATURES
• Dedicated downflow models may be easily applied with-
out any field conversion
• Top vent connection allows installation in narrowloca-
tions
• Electronic hot surface ignition with high reliability and
dependability
• 100% shut off main gas valve for added safety
• High velocity filter provided for field installation
• "Diamond Tough" hot surface igniter
• 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 usingtubular
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
• Attractive baked enamel finish for durability
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