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TECHNICAL GUIDE
AFFINITY
MODELS: PT8*DH
GAS-FIRED
HIGH EFFICIENCY TWO STAGE
DOWNFLOW/HORIZONTAL FURNACES
STANDARD & Low NOx
NATURAL GAS
40 - 120 MBH INPUT
EFFICIENCY
RATING
CERTIFIED
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.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
These high efficiency, compact units employ induced com-
bustion, reliable hot surface ignition and high heat transfer
tubular heat exchangers. The units are factory shipped for
installation in downflow or horizontal 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 depend-
able 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
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ISO 9001
Certified Quality
Management System
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Two stage heating operation includes:
- Two stage gas valve
- Two stage inducer operation
This provides both increased comfort level and very
quiet unit operation
Delay timer allows two stage operation with single stage
thermostat
Acoustically insulated blower compartment for reduced
blower sound level
Humidifier and Electronic Air Cleaner control wires are
provided to the power wiring box for easy field connec-
tion.
100% shut off main gas valve for added safety
Rollout safety control
Low unit amp requirement for easy replacement appli-
cation
High quality two speed inducer motor for quiet operation
Built-in self diagnostics with fault code display
40 VA control transformer fuse protected
Cooling relay supplied for easy installation of add-on
cooling
Multi-speed PSC, direct-drive blower motor 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.
Low NOx models may not be converted to propane
unless screens are removed.
246796-YTG-D-0407
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Table of Contents
Related Manuals for York PT8DH
Summary of Contents for York PT8DH
- Page 1 • Low NOx models may not be converted to propane Visit us on the web at www.york.com for the most unless screens are removed. up-to-date technical information. Additional rating information can be found at www.gamanet.org.
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Page 2: Cabinet And Duct Dimensions
246796-YTG-D-0407 4” DIAMETER (VENT CONNECTION) T’STAT T’STAT WIRING WIRING 7/8” K.O. 7/8” K.O. GAS INLET ALT. GAS INLET 1-1/4” X 2-1/2” 1-1/4” X 2-1/2” 28-1/2 30-1/8 RIGHT SIDE FRONT LEFT SIDE 1-1/4 5/8” 5/8” 4” DIA. VENT POWER CONNECTION WIRING 7/8 K.O. - Page 3 246796-YTG-D-0407 BLOWER PERFORMANCE CFM - (WITHOUT FILTER) Airflow Data MODELS Speed Ext. Static Pressure High 1620 1590 1480 1400 1310 1240 1140 1040 Medium High 1430 1390 1340 1280 1220 1140 1050 PT8A12(N,L)040DH11 Medium Low 1210 1210 1190 1200 1100 1020 High 1500...
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Page 4: Horizontal Sidewall Venting
246796-YTG-D-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 5: Applying Filter Pressure Drop To Determine System Airflow
246796-YTG-D-0407 APPLYING FILTER PRESSURE DROP TO ACCESSORIES DETERMINE SYSTEM AIRFLOW PROPANE (LP) CONVERSION KIT - To determine the approximate airflow of the unit with a filter in 1NP0347 - All Models place, follow the steps below: These accessory conversion kits may be used to convert nat- Select the filter type. - Page 6 246796-YTG-D-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 - AC Unitary Products Group...
- Page 7 246796-YTG-D-0407 Thermostat Chart - HP Unitary Products Group...
- Page 8 NOTES Subject to change without notice. Printed in U.S.A. 246796-YTG-D-0407 Copyright © by York International Corp. 2007. All rights reserved. Supersedes: 246796-YTG-C-0806 Unitary 5005 Norman Products York Group Drive 73069...