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CLICK ANYWHERE on THIS PAGE to RETURN to AMERICAN STANDARD HVAC
AGE & MANUALS at InspectApedia.com
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
Model:
CUB1A040A9241A
CUB1A060A9241A
CUB1A060A9361A
CUB1B060A9361A
CUB1B080A9361A
CUB1B080A9481A
CUB1B100A9361A
CUB1C100A9481A
CUB1C100A9601A
Since the manufacturer has a policy of continuous product and product data
improvement, it reserves the right to change design and specifications without notice.
© 2007 American Standard Inc. All Rights Reserved
INSTALLATION, OPERATION,
AND MAINTENANCE GUIDE
CUB1D120A9601A
CUB1D140A9601A
CDB1A060A9361A
CDB1B060A9361A
CDB1B080A9451A
CDB1B100A9451A
CDB1C100A9601A
CDB1D120A9601A
IMPORTANT — This Document is customer property and is to remain with this unit.
Please return to service information pack upon completion of work.
For VENT SIZING INFORMATION see:
USA —
National Fuel Gas Code ....... ANSI Z223.1/NFPA 54 (latest version)
CANADA —
Natural Gas Installation Code ..... CAN/CGA-B149.1 (latest version)
Propane Installation Code ............ CAN/CGA-B149.2 (latest version)
USA/CANADA ALTERNATE —
Category I Venting Guide ............................... Pub. No. 18-CH23D1-2
Upflow only
*Horizontal Conversion for these furnaces may be left or right side rotation.
Upflow Only and Downflow /
Horizontal, Gas-Fired
Furnaces "Fan Assisted
Combustion System"
Downflow / Horizontal*
41- 5010- 20
A341789P05
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Table of Contents
Related Manuals for American Standard CUB1A040A9241A
Summary of Contents for American Standard CUB1A040A9241A
- Page 1 CLICK ANYWHERE on THIS PAGE to RETURN to AMERICAN STANDARD HVAC AGE & MANUALS at InspectApedia.com 41- 5010- 20 INSTALLATION, OPERATION, AND MAINTENANCE GUIDE ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES Model: Upflow Only and Downflow /...
- Page 2 Installation Instructions SAFETY SECTION ▲ The following safety practices and precautions must be followed WARNING during the installation, servicing, and operation of this furnace. CARBON MONOXIDE POISONING HAZARD 1. Use only with the type of gas approved for this furnace. Refer to the furnace rating plate.
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Page 3: Table Of Contents
INSTALLATION INSTRUCTIONS Installation Instructions conform with the National Fuel Gas Code ANSI Z223.1 “latest CONTENTS edition” or CAN/CGA B149 Installation Codes. The latest code may be obtained from the American Gas Association Laborato- INSTALLATION INSTRUCTIONS ....3 ries, 8501 E. Pleasant Valley Rd., Cleveland, Ohio 44131. General Installation Instructions ....3 These furnaces have been classified as Fan Assisted Combustion Location and Clearances ........3... -
Page 4: Outline Drawings
Installation Instructions Page 4 Pub. No. 41-5010-20... - Page 5 Installation Instructions Pub. No. 41-5010-20 Page 5...
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Page 6: Horizontal Installation
Installation Instructions UPFLOW INSTALLATION TABLE 1 Standoffs and screws (See Figure 1) are included with the cased FLOOR OPENING PLENUM OPENING CABINET RETURN coils for attachment to the furnace. There are clearance alignment WIDTH DUCT WIDTH "A" "B" "C" "D" holes near the bottom of the coil wrapper. -
Page 7: Air For Combustion And Ventilation
Installation Instructions 50 CU. FT. OR MORE PER 1000 BTU/HR. INPUT ALL EQUIP. INSTALLED UNCONFINED FIGURE 7 CONFINED TYPICAL DOWNFLOW/HORIZONTAL ATTIC INSTALLATION LESS THAN 50 CU. FT. FIGURE 5 PER 1000 BTU/HR. INPUT ALL EQUIP INSTALLED FIGURE 8 1. All air from inside the building as in Figure 9: The confined space shall be provided with two permanent openings communi- cating directly with an additional room(s) of sufficient volume so that the combined volume of all spaces meets the criteria for an... -
Page 8: Duct Connections
Installation Instructions TABLE 2 MINIMUM AREA IN SQUARE FEET FOR UNCONFINED SPACE INSTALLATIONS WITH 8 FOOT CEILING FURNACE MAXIMUM MINIMUM AREA IN SQUARE FEET BTUH / INPUT RATING OF UNCONFINED SPACE 40,000 60,000 80,000 100,000 120,000 140,000 TABLE 3 MINIMUM FREE AREA IN SQUARE INCHES EACH OPENING (FURNACE ONLY) Furnace Air From Outside... -
Page 9: Return Air Filters
Installation Instructions Minimum return air “entering temperature” for the fur- RETURN AIR FILTER nace is 50° F. Filters are field supplied for these furnaces. These furnaces Where there is no complete return duct system, the return require high velocity type air filters which may be located within connection must be run full size from the furnace to a location the furnace blower compartment for UPFLOW furnaces in either outside the utility room, basement, attic, or crawl space. - Page 10 Installation Instructions TYPICAL DOWNFLOW FURNACE RETURN AIR FILTER TYPICAL UPFLOW FURNACE RETURN AIR FILTER INSTALLATIONS INSTALLATIONS Typical Bottom Return Filter Typical Side Return Filter FIGURE 13 FIGURE 14 TABLE 5 CABINET FILTER FILTER BRACKET WIDTH SIZE LOCATION * 14-1/2" 2 - 14X20X1 12-7/8"...
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Page 11: General Venting Instructions
Installation Instructions GENERAL VENTING INSTRUCTIONS VENT PIPING External Masonry Chimney These furnaces have been classified as Fan-Assisted Combustion Venting of fan assisted appliances into external chimneys (one or System, Category I furnaces under the “latest edition” provisions more walls exposed to outdoor temperatures), requires the chim- of ANSI Z21.47 and CAN/CGA 2.3 standards. -
Page 12: Electrical Connections
Installation Instructions ▲ WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death. The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation:... -
Page 13: Field Wiring Diagrams
Field Wiring Diagram Installation Instructions FIELD WIRING DIAGRAM FOR 1 STAGE FURNACE 1 STAGE HEATING USING A 1 STAGE HEATING THERMOSTAT NO COOLING FURNACE NOTE 6 TO 115 V 1 PH., 60 HZ., POWER SUPPLY PER LOCAL CODES From Dwg. B340433 Rev. 2 FIELD WIRING DIAGRAM FOR 1 STAGE FURNACE 1 STAGE HEATING, 1 STAGE COOLING USING A 1 STAGE HEATING, 1 STAGE COOLING THERMOSTAT... -
Page 14: Gas Piping
Installation Instructions ▲ GAS PIPING WARNING This unit is shipped standard for left side installation of gas FIRE OR EXPLOSION HAZARD piping. A piping knockout is also provided in the right side for an alternate piping arrangement. The installation of piping shall be Failure to follow the safety warnings exactly could result in in accordance with piping codes and the regulations of the local serious injury, death or property damage. -
Page 15: Start-Up And Adjustment
Installation Instructions START-UP AND ADJUSTMENT less than 93% of the nameplate rating, unless the unit is derated for high altitude. PRELIMINARY INSPECTIONS g. Replace the regulator adjustment screw cap and tighten With gas and electrical power “OFF” securely. 1. Duct connections are properly sealed h. -
Page 16: High Altitude Derate
Installation Instructions HIGH ALTITUDE DERATE Furnace input rate and temperature rise should be checked again after changing orifices to confirm the proper rate for the altitude. Input rate changes can be made by adjusting the manifold pressure (min 3.0 - max 3.7 in. W.C. - Natural Gas) or changing Installations above 4,000 feet may require a pressure switch orifices (orifice change may not always be required). -
Page 17: Control And Safety Switch Adjustment
Installation Instructions ▲ CAUTION The following warning complies with State of California law, Proposition 65. ▲ If this is done during the cold weather months, provisions WARNING must be taken to prevent freeze-up of all water pipes and water receptacles. Failure to follow this warning could result This product contains fiberglass wool insulation! in property damage. -
Page 18: Operating Instructions
OPERATING INSTRUCTIONS Operating Instructions User’s Information Guide Upflow Only and Downflow / Horizontal, Gas-Fired Furnaces “Fan Assisted Combustion System” GENERAL INFORMATION Contents: Understand the signal words DANGER, WARNING, AND CAU- Dangers, Warnings & Cautions ......18 TION. These words are safety alert words. DANGER indicates the General Information ......... -
Page 19: Lighting Instructions
Operating Instructions Untrained personnel can perform basic maintenance functions NOTE: such as cleaning and replacing filters. All other operations must The manufacturer of your furnace does not test any detec- be performed by trained service personnel. tors and makes no representations regarding any brand or type of detector. - Page 20 Operating Instructions NOTE THE LOCATION OF THE MANUAL MAIN GAS SHUT-OFF VALVE FOR YOUR FURNACE. Have your installer or servicer show you the location if you have any questions. AUTOMATIC GAS VALVE AUTOMATIC GAS VALVE WITH MANUAL SHUT-OFF MAIN MANUAL WITH MANUAL SHUT-OFF SHUT-OFF VALVE MAIN MANUAL...
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Page 21: Filter Replacement
Filter Replacement Operating Instructions Proper maintenance reduces energy use. A clean filter saves money. When the furnace circulates and filters the air in your home, dust and dirt particles build up on the filter. Excessive accumulation can block the airflow, forcing the unit to work harder to maintain desired temperatures. - Page 22 Operating Instructions Upflow/Horizontal Furnace Filters Downflow/Horizontal furnaces are factory supplied with 2 stan- dard size permanent type air filters which may be located remote The Upflow/Horizontal furnace when installed horizontally re- to the furnace or in the return air duct. Check with your dealer for quires a horizontal filter kit.
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Page 23: Problem Solver
Operating Instructions The problem solver. A furnace is not a household appliance. It is complex and requires or problems you may have. A periodic inspection of your furnace professional maintenance and repair. should be made by a qualified service agency at the start of each heating season. -
Page 24: Regular Dealer Maintenance
Operating Instructions Regular dealer maintenance. Never stop the cooling system by shutting off the main Clean burners with brush and/or vacuum cleaner. Reassemble power. parts by reversal of the above procedure. If the main power to your air conditioner is ever disconnected for NOTE: more than three hours, turn off the thermostat. -
Page 25: Maintenance And Service
Maintenance and Service MAINTENANCE AND SERVICE INFORMATION WARNING DISCONNECT POWER BEFORE SERVICING PRODUCT SPECIFICATIONS MODEL CUB1B060A9361A CUB1B080A9361A CUB1A040A9241A CUB1A060A9361A Upflow TYPE Upflow Upflow Upflow RATINGS 2 Input BTUH 3 60,000 60,000 80,000 40,000 Capacity BTUH (ICS) 3 47,000 47,000 63,000... - Page 26 Maintenance and Service PRODUCT SPECIFICATIONS MODEL CUB1B080A9481A CUB1B100A9361A CUB1C100A9481A TYPE Upflow Upflow Upflow RATINGS 2 Input BTUH 3 80,000 100,000 100,000 Capacity BTUH (ICS) 3 64,000 79,000 79,000 Temp. rise (Min.-Max.) °F. 30 - 60 40 - 70 35 - 65 AFUE 80.0 80.0...
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Page 27: Product Specifications - Downflow
Maintenance and Service PRODUCT SPECIFICATIONS MODEL CDB1A060A9361A CDB1B060A9361A CDB1B080A9451A TYPE Downflow / Horizontal Downflow / Horizontal Downflow / Horizontal RATINGS 2 Input BTUH 3 60,000 60,000 80,000 Capacity BTUH (ICS) 3 48,000 48,000 64,000 Temp. rise (Min.-Max.) °F. 30 - 60 30 - 60 35 - 65 AFUE... -
Page 28: Sequence Of Operation
Maintenance and Service SEQUENCE OF OPERATION INDOOR BLOWER TIMING [See Figure “Cooling Fan Delay” and Wiring Diagram] Thermostat call for heat Heating: The control module controls the indoor blower. The R and W thermostat contacts close signaling the control module blower start is fixed at 45 seconds after ignition. -
Page 29: Upflow Wiring Diagrams
Upflow Wiring Diagrams Maintenance and Service WIRING DIAGRAM (continued on next page) From Dwg. D342779P01 Rev. 05 Pub. No. 41-5010-20 Page 29... - Page 30 Maintenance and Service SCHEMATIC DIAGRAM From Dwg. D342779P01 Rev. 05 Page 30 Pub. No. 41-5010-20...
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Page 31: Downflow Wiring Diagrams
Downflow Wiring Diagrams Maintenance and Service WIRING DIAGRAM From Dwg. D342780P01 Rev. 01 (continued on next page) Pub. No. 41-5010-20 Page 31... - Page 32 Maintenance and Service SCHEMATIC DIAGRAM From Dwg. D342780P01 Rev.01 Page 32 Pub. No. 41-5010-20...
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Page 33: Upflow Airflow Table
0.30 0.40 0.50 0.60 0.70 0.80 0.90 HIGH - Black 1018 1004 MED.-HIGH - Blue CUB1A040A9241A MED.-LOW - Yellow LOW - Red HIGH - Black 1013 MED.-HIGH - Blue CUB1A060A9241A MED.-LOW - Yellow LOW - Red HIGH - Black 1426... -
Page 34: Downflow Airflow Table
Downflow Airflow Table Downflow CFM vs. Temp Rise Table Maintenance and Service FURNACE AIRFLOW (CFM) VS. STATIC PRESSURE (in. w.c.) MODEL SPEED TAP 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 HIGH - Black 1480 1429 1375 1318 1282 1100 1112 1029... -
Page 35: Periodic Servicing Requirements
Maintenance and Service PERIODIC SERVICING REQUIREMENTS ▲ Turn off gas and electric power supply. To clean burners, remove WARNING burner box cover (6 to 8 screws) and top burner bracket. Lift Disconnect power to the unit before removing the blower burners from orifices. - Page 36 NOTES Page 36 Pub. No. 41-5010-20...
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Page 37: Warranties
Models Less Than 20 Tons for Residential Use* This limited warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Gas Furnace is originally affixed, and applies to products purchased and retained for use within the U.S.A. - Page 38 Models Less Than 20 Tons for Commercial Use* This warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Gas Furnace is originally affixed, and applies to products purchased and retained for use within the U.S.A.