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TECHNICAL GUIDE
MODELS: GY8S-DH/LY8S-DH
GAS-FIRED
HIGH EFFICIENCY SINGLE STAGE
DOWNFLOW/HORIZONTAL FURNACES
STANDARD & Low NOx
NATURAL GAS
40 - 130 MBH INPUT
EFFICIENCY
RATING
CERTIFIED
Due to continuous product improvement, specifica-
tions are subject to change without notice.
Visit us on the web at www.york.com for the most
up-to-date technical information.
Additional information can be found at
www.gamanet.org.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
ISO 9001
Certified Quality
Management System
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 with-
out 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
•
Low NOx models have been designed to meet specific
code requirements.
•
All models are propane convertible.
279747-YTG-A-0407
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Related Manuals for York GY8S-DH
Summary of Contents for York GY8S-DH
- Page 1 Due to continuous product improvement, specifica- • All models are propane convertible. tions are subject to change without notice. Visit us on the web at www.york.com for the most up-to-date technical information. Additional information can be found at www.gamanet.org. FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE...
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Page 2: Cabinet And Duct Dimensions
279747-YTG-A-0407 4” Diameter (VENT CONNECTION) T’STAT WIRING 7/8” K.O. 31-1/8 GAS INLET ALT. GAS INLET 1-1/4” X 2-1/2” 1-1/4” X 2-1/2” 5-3/4 2-1/2 28-1/2 RIGHT SIDE FRONT LEFT SIDE 1-1/8 4” Diameter 7-3/8 1-1/4 3-3/4 1-7/8 FRONT FRONT TOP IMAGE BOTTOM IMAGE CABINET AND DUCT DIMENSIONS Cabinet Dimension... -
Page 3: Ratings & Physical / Electrical Data
279747-YTG-A-0407 RATINGS & PHYSICAL / ELECTRICAL DATA Nominal Cabinet Air Temp. Input Output Total Unit Airflow Width Rise Models AFUE Amps °F (G,L)Y8S040A12DH11 1200 14-1/2 80.0 20-50 (G,L)Y8S060A12DH11 1200 14-1/2 80.0 25-55 (G,L)Y8S080A12DH11 1200 14-1/2 80.0 35-65 (G,L)Y8S080B16DH11 1600 17-1/2 12.0 80.0 25-55... - Page 4 279747-YTG-A-0407 BLOWER PERFORMANCE CFM - (WITHOUT FILTER) Airflow Data MODELS Speed Ext. Static Pressure (in. H2O) High 1620 1590 1480 1400 1310 1240 1140 1040 Medium High 1430 1390 1340 1280 1220 1140 1050 (G,L)Y8S040A12DH11 Medium Low 1210 1210 1190 1200 1100 1020...
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Page 5: Horizontal Sidewall Venting
279747-YTG-A-0407 HORIZONTAL SIDEWALL VENTING NOTE: The filter pressure drop values in Blower Perfor- mance Tables are typical values for the type of filter listed and For applications where vertical venting is not possible, the should only be used as a guideline. Actual pressure drop rat- only approved method of horizontal venting is the use of an ings for each filter type vary between filter manufacturer. -
Page 6: Unit Clearances To Combustibles
279747-YTG-A-0407 1240 - 56 = 1184 UNIT CLEARANCES TO COMBUSTIBLES Left Right Front Rear Flue Floor/ Line Side Side Application Closet Alcove Attic Bottom Contact Downflow Downflow B-Vent Horizontal Combustible Horizontal B-Vent Combustible 1. Special floor base or air conditioning coil required for use on combustible floor. 2. - Page 7 279747-YTG-A-0407 For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the Product Catalog Section. Thermostat Chart Unitary Products Group...
- Page 8 NOTES Subject to change without notice. Printed in U.S.A. 279747-YTG-A-0407 Copyright © by York International Corp. 2007. All rights reserved. Supersedes: 246794-YTG-C-0706 Unitary 5005 Norman Products York Group Drive 73069...