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INSTALLATION
INSTRUCTION
UPFLOW
40-140 MBH INPUT
UPFLOW
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any appliance.
•
Open windows.
•
Do not touch any electrical switch;
do not use any phone in your building.
•
Extinguish any open flames
•
Immediately call your gas supplier from
a neighbor's phone. Follow the gas sup-
plier's instructions.
•
If you cannot reach your gas supplier,
call the fire department.
Supersedes:
CATEGORY IV/DUAL CERTIFIED
DIRECT VENT TYPE FSP AND 1-PIPE VENT
.
GAS-FIRED FURNACES
TUBULAR HEAT EXCHANGER SERIES
650.75-N4U (498)
DOWNFLOW/HORIZONTAL
40-120 MBH INPUT
DOWNFLOW
THIS PRODUCT MUST BE INSTALLED IN
STRICT COMPLIANCE WITH THE ENCLOSED IN-
STALLATION INSTRUCTIONS AND ANY APPLICA-
BLE LOCAL, STATE, AND NATIONAL CODES
INCLUDING BUT NOT LIMITED TO, BUILD-
I N G , E L E C T R I C A L A N D M E C H A N I C A L
CODES.
IMPROPER INSTALLATION MAY CREATE A
CONDITION WHERE THE OPERATION OF THE
PRODUCT COULD CAUSE PERSONAL INJURY
OR PROPERTY DAMAGE.
IMPROPER INSTALLATION, ADJUSTMENT, AL-
TERATION, SERVICE OR MAINTENANCE CAN
CAUSE INJURY OR PROPERTY DAMAGE. RE-
FER TO THIS MANUAL. FOR ASSISTANCE OR
ADDITIONAL INFORMATION, CONSULT A
QUALIFIED INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance
650.75-N4U (1198)
035-14370-000
HORIZONTAL (RIGHT)
HORIZONTAL (LEFT)
CAUTION
WARNING
WARNING
FOR YOUR SAFETY
.
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Table of Contents
Related Manuals for York 650.75-N4U
Summary of Contents for York 650.75-N4U
- Page 1 INSTALLATION GAS-FIRED FURNACES TUBULAR HEAT EXCHANGER SERIES INSTRUCTION Supersedes: 650.75-N4U (498) 650.75-N4U (1198) 035-14370-000 CATEGORY IV/DUAL CERTIFIED DIRECT VENT TYPE FSP AND 1-PIPE VENT DOWNFLOW/HORIZONTAL UPFLOW 40-140 MBH INPUT 40-120 MBH INPUT HORIZONTAL (RIGHT) UPFLOW DOWNFLOW HORIZONTAL (LEFT) CAUTION THIS PRODUCT MUST BE INSTALLED IN...
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Page 2: Table Of Contents
650.75-N4U GENERAL INFORMATION TABLE OF CONTENTS Two-Pipe Using Attic Combustion Air ......18 GENERAL INFORMATION Condensate Piping ........... 18 - 19 Description .................2 Safety Controls ............19 - 20 Inspection ................2 Start-Up & Adjustments ...........20 Notes, Cautions, & Warnings ..........2 Ignition System Sequence ..........20 Vent Safety Check Procedure ........ -
Page 3: Specific Unit Information Limitations & Location
650.75-N4U dryers. Turn on any exhaust fans, such as range hoods and NOTE: In all cases, accessibility clearances shall take prece- dence over clearances for combustible materials where bathroom exhausts, so they shall operate at maximum speed. Do not operate a summer exhaust fan. Close accessibility clearances are greater. -
Page 4: Dimensions
650.75-N4U DIMENSIONS -UPFLOW MODELS MODEL 40 / 37 / 800 / A 14-1/2 12-3/4 10-1/8 60 / 55 / 1000 / B 17-1/2 16-1/4 13-1/8 80 / 75 / 1200 / B 17-1/2 16-1/4 13-1/8 80 / 75 / 1600 / C... - Page 5 650.75-N4U DIMENSIONS - DOWNFLOW/HORIZONTAL MODELS MODEL 40 /37 / 800 / A 14-1/2 13-1/4 11-3/4 5-1/8 2-1/2 60 /55 / 1200 / B 17-1/2 16-1/4 14-3/4 6-5/8 2-1/4 80 /75 / 1200 / B 17-1/2 16-1/4 14-3/4 6-5/8 2-1/4 80 /75 / 1600 / C...
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Page 6: Ductwork
650.75-N4U TABLE 3 - UNIT CLEARANCES TO COMBUSTIBLES LEFT RIGHT FLOOR/ LINE APPLICATION FRONT REAR FLUE CLOSET ALCOVE ATTIC SIDE SIDE BOTTOM CONTACT UPFLOW MODELS UPFLOW COMBUSTIBLE DOWNFLOW / HORIZONTAL MODELS LEFT RIGHT FLOOR/ LINE FRONT REAR FLUE CLOSET ALCOVE... - Page 7 650.75-N4U Return Duct Connection Return air may enter the furnace through the side(s) or bottom depending on the type of application. Return air may not be connected into the rear panel of the unit. See the specific type application installation for details. Be sure to see the "Filters"...
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Page 8: Filters
650.75-N4U Bottom Return Bottom return applications normally pull return air through a base platform or return air plenum. Be sure the return platform structure is suitable to support the weight of the furnace. Be sure to seal the furnace to plenum connection to prevent air leakage. -
Page 9: Gas Piping
650.75-N4U WARNING: When a furnace is installed in an attic or other insulated space, keep all insulating materials at least 12" away from furnace and burner combustion air openings. NOTE: See crawl space installation for suspending the furnace in attic installations. -
Page 10: Electrical Power/Control Connection
650.75-N4U Connect the power supply as shown on the unit wiring label on the inside of the blower compartment door and Figure 9 & 10. The black furnace lead must be connected to the L1 (hot) wire from the power supply. The white furnace lead must be con- nected to neutral. -
Page 11: Combustion Air & Vent System
650.75-N4U Be sure to follow the appropriate venting section details, related information and limitations for your type of installation. COMBUSTION AIR INTAKE/VENT CONNECTIONS Furnace Intake / Vent Connection Size 40 - 100 MBH 120-140 MBH Intake 2" 3" Vent 2"... - Page 12 650.75-N4U 6. All combustion air/vent pipe and fittings must conform to TABLE 5 - DOWNFLOW /HORIZONTAL UNITS - American National Standards Institute (ANSI) standards INTAKE/VENT PIPING 2-PIPE SYSTEM and American Society for Testing and Materials (ASTM) standards D1785 (Schedule 40 PVC), D2665 (PVC- Pipe Max.
- Page 13 650.75-N4U VENT CLEARANCES (2-PIPE) U.S. ONLY 3. Chamfer the outer edges of the piping. Dryer Vent ............3 ft. 4. Dry-fit the entire vent/combustion air piping assembly. Plumbing Vent Stack ..........3 ft. Gas Appliance Vent Terminal .......3 ft.* 5. Disassemble the piping and apply cement primer and From any mechanical cement per the cement manufacturer’s instructions.
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Page 14: One-Pipe System
650.75-N4U hangers is five (5) feet, except SDR-PVC piping, where maximum spacing is three (3) feet. 8. Seal around the openings where the combustion air and vent piping pass through the roof of side wall. CAUTION: Vent piping must be insulated with 1/2"... - Page 15 650.75-N4U EXAMPLE: Total Input of All Appliances = Square Inches Free Area 4000 b. Horizontal Ducts - Each opening must have a free area of not less than one square inch per 2,000 Btuh of total input of all appliances located in the space.
- Page 16 650.75-N4U Combustion Air Quality TABLE 7 - VENT PIPING - ALL MODELS 1-PIPE-PIPE SYSTEM The recommended source of combustion air is to use the outdoor air supply. Excessive exposure to contaminated com- Pipe Max. Elbows vs. bustion air will result in safety and performance related prob-...
- Page 17 650.75-N4U 3. Termination should be located where it will not be affected 6. All joints must be made to provide a permanent, air tight. by wind gusts, light snow, airborne leaves or allow recircu- water tight seal. lation of flue gases.
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Page 18: Two-Pipe System
650.75-N4U 8. Seal around the openings where the vent piping passes VENT TERMINATION through the roof or side wall. The vent pipe termination must be installed within the allowable locations shown in Figure 24 and Section 7.8 in the National NOTE: Vent pipe must be sloped 1/4"... -
Page 19: Safety Controls
650.75-N4U FIGURE 30 - HORIZONTAL APPLICATION CONDENSATE DRAIN CONNECTION For horizontal left airflow (inducer and vent low) or horizontal is trapped upstream of the tie-in and the combined drains right airflow (inducer and vent high), install condensate drain are constructed of the same material. -
Page 20: Start-Up & Adjustments
650.75-N4U Limit Control WARNING: Blower and burner must never be oper- There are high temperature limit control(s) located on the ated without the blower panel in place. furnace vestibule panel near the gas valve. These are automat- ic reset control and provides over temperature protection due to reduced airflow, such as a dirty filter. -
Page 21: Adjustment Of Manifold Gas Pressure
650.75-N4U Example 1: 28.9" Barometric Pressure, 80° F TABLE 9 - GAS RATE (CUBIC FEET PER HOUR) Seconds for Size of Test Dial (28.9) x 520 = 15028 = .928 Correction Factor one Revol. (80 + 460) x 30 = 16200 1/2 cu. - Page 22 650.75-N4U FIGURE 33 - UPFLOW MODELS - READING GAS PRESSURE: WITH BURNER BOX COVER IN PLACE WITH BURNER BOX COVER REMOVED FIGURE 34 - DOWNFLOW/HORIZONTAL FLOW MODELS - READING GAS PRESSURE: WITH BURNER BOX COVER IN PLACE WITH BURNER BOX COVER REMOVED...
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Page 23: Adjustment Of Temperature Rise
650.75-N4U FIGURE 36 - ACCESSORY CONNECTIONS FIGURE 35 - TYPICAL HEAT/COOL SPEED TAP CONNECTIONS CAUTION: Do not energize more than one motor speed at a time or damage to the motor will result. WARNING: Once the correct gas pressure to the burners has been established, turn the gas valve knob to OFF and turn the electrical supply switch to OFF;... -
Page 24: Operation & Maintenance
650.75-N4U Humidifier Connection As gas starts to flow and ignition occurs, the flame sensor begins its sensing function. If a flame is detected within seven Two 1/4" spade terminals (HUM and HUM N) for humidifier seconds after ignition, normal furnace operation continues until connections are located on the control board. -
Page 25: Maintenance
650.75-N4U Hot Surface Ignition System 2. Filters are installed in the plenum area above the blower assembly. Filters rest against the side of the plenum wall WARNING: Do not attempt to light this furnace by and are supported in the middle by a frame. Lift filter hand (with a match or any other means). -
Page 26: Burners
650.75-N4U Burner Removal/Cleaning 2. Remove the vent piping from the venter housing. Discon- nect the drain lines from the venter and from the conden- sate drain pan. Remove the venter blower and the The main burners should be checked periodically for dirt condensate pan. - Page 27 650.75-N4U This no-light condition occurred 3 times during the call for heat before locking out. This may be caused by low gas pressure, 50A50-241 IGNITION CONTROL (P/N 031-01266-000) faulty gas valve, faulty hot surface igniter or burner problem. Normal flame sense current is approximately.
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Page 28: Airflow Data
650.75-N4U AIRFLOW DATA - UPFLOW MODELS MODEL SPEED EXTERNAL STATIC PRESSURE, INCHES WC 1051 1005 — — 40 / 37 / 800 / A — — — — — — — 1220 1200 1190 1152 1115 1065 1012 60 / 55 / 1000 / B —... -
Page 29: Unit Wiring Diagram
650.75-N4U UNIT WIRING DIAGRAM - UPFLOW Unitary Products Group... - Page 30 UNIT WIRING DIAGRAM - DOWNFLOW/HORIZONTAL...
- Page 31 650.75-N4U NOTES Unitary Products Group...
- Page 32 650.75-N4U NOTES Subject to change without notice. Printed in U.S.A. Copyright © by Unitary Products Group 1998. All rights reserved. Supercedes: 650.75-N4U (498) 650.75-N4U 5005 York Drive Unitary Products Norman, OK 73069 Group...