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HIGH-EFFICIENCY UPFLOW FURNACE
INSTALLER'S INFORMATION MANUAL
ATTENTION, INSTALLER!
furnace, show the user how to turn off gas and electricity to
the furnace. Point out control and switch locations for
turning off gas and electricity.
Information Manual and Section 23, "Maintaining Furnace
In Good Working Order" in this manual with the user. Make
sure the user understands the importance of following all
safety precautions, including what could happen if they do
not.
Attach the following documents to or adjacent to the
furnace. Tell the user where these documents are located.
•
User's Information Manual
•
Installer's Information Manual
•
Parts List
•
Warranty Information
While these instructions have been written as accurately
and thoroughly as possible, they can not cover every
system
variation
or
contingency.
interpretation may arise. For more information, solutions to
particular problems or clarification, contact your local
distributor or the manufacturer.
WARNING:
Individuals who install this fu rnace, must have the training and experience necessary to install gas
furnaces. They must also have training and experience necessary to install related comfort air conditioning appliances.
Improper installation could create a hazard, resulting in the possibility of damage, injury or death.
After installing the
Go over the User's
Questions
of
ATTENTION, USER!
give you the documents listed on opposite side.
should immediately read the User's Information Manual for
important safety information to keep y ou and your family
safe. Keep these as long as you keep your furnace. Pass
them on to future furnace purchasers or users. If any of the
documents are missing or illegible, contact your installer or
furnace manufacturer for replacement. Throughout this
manual, when we use the word "you" we refer to the
qualified service technician who is responsible for
application, installation and service of your furnace.
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any appliance.
•
Do not touch any electrical switch.
•
Do not use any phone in your building.
•
Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
•
If you cannot reach gas supplier, call the fire
department.
Your furnace installer should
You
422690 I
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Table of Contents
Summary of Contents for HP 422690 I
- Page 1 HIGH-EFFICIENCY UPFLOW FURNACE INSTALLER'S INFORMATION MANUAL ATTENTION, INSTALLER! furnace, show the user how to turn off gas and electricity to the furnace. Point out control and switch locations for turning off gas and electricity. Go over the User’s Information Manual and Section 23, “Maintaining Furnace In Good Working Order"...
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Page 2: Table Of Contents
Rule 4. This furnace is not to be used for temporary heating of buildings or structures under construction. Rule 5. Provide adequate combustion and ventilation air to space where furnace is being installed unless combustion air is provided directly through an inlet air pipe. -
Page 3: Section 2. Meeting Codes
Doing so could cause a fire. Install furnace so all electrical components are protected from water. Level furnace from front to back and from left to right within 1/4 inch. Furnace must be installed level for proper condensate drainage. - Page 4 * See Furnace Rating Plate located on blower door. ** These are furnace dimensions. See Sections 9 and 10 for proper ductwork and floor opening dimensions. *** Certified for installation on wood flooring. 30-inch front clearance required for service. 18-inch front clearance required in an alcove.
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Page 5: Section 4. Providing Venting And Combustion Air
The vent system for this furnace must be installed so as to prevent leakage of flue gases into the building. This furnace may be installed using either direct venting or non- direct venting. - Page 6 EXISTING VENT CONSIDERATIONS When a Category I furnace is removed or replaced, the old venting system may not be properly sized to vent the remaining appliance(s), for example, a gas water heater.
- Page 7 Note that some of the larger furnace models may require a high altitude pressure switch at elevations between 3000 and 6000 feet. For example, the table shows that the...
- Page 8 NOTE 1: The table assumes the use of sweep elbows. If using hard 90 elbows , the vent length should be decreased an additional 3 feet for every elbow used. NOTE 2: The shaded portions of the table require the high altitude pressure switch in order to operate the furnace at the listed vent lengths.
- Page 9 Note that some of the larger furnace models may require a high altitude pressure switch at elevations between 3000 and 6000 feet. For example, the chart shows that the...
- Page 10 NOTE 1: The table assumes the use of sweep elbows. If using hard 90 elbows, the vent length should be decreased an additional 3 feet for every elbow used. NOTE 2: The shaded portions of the table require the high altitude pressure switch in order to operate the furnace at the listed vent lengths.
- Page 11 WARNING: Furnaces and any other fuel burning appliances must have enough fresh air for proper combustion. Lack of adequate combustion air could cause the furnace to produce carbon monoxide and may result in nausea or asphyxiation. Excessive exposure to air contaminated with chlorine, fluorine, bromine and iodine may result in safety and performance related problems.
- Page 12 However, if the building is of unusually tight construction all combustion air must come from outdoors. Also, if retu rn air is taken directly from a hallway or space next to furnace that communicates with furnace spaces, all combustion air must come from outdoors .
- Page 13 108,000 126,000 144,000 Example: Furnace is 90,000 Btu per hour input and is to be installed in a confined space that contains no other gas appliances. Rectangular combustion and ventilation air ducts will run horizontally from outdoors to furnace space.
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Page 14: Section 5. Condensate Drain
The furnace’s drain trap must be primed. This is easily done by pouring a few cups of water into furnace vent pipe after drain installation is complete. A frozen or blocked drain line will cause furnace shutdown and no-heat complaints. -
Page 15: Section 7. Installing Electrical Wiring
WARNING: When test pressure is above 1/2 psi (14 inches W.C.), completely disconnect furnace and gas control from gas supply line. Failure to isolate furnace and gas control from test pressure could damage them, causing gas to leak, resulting in fire or explosion. - Page 16 Figure 15. Furnace Wiring Diagram. Page 16 Installer’s Information Manual...
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Page 17: Section 8. Sequence Of Operation
Main blower remains energized for 60 to 180 seconds depending on heating blower off-delay setting. NOTE: This furnace will lockout if the main blower fails in heating mode. During lockout, the Fan Timer's diagnostic light signal will be 4 flashes. The fu rnace's Fan Timer can be reset by cycling 115-volt power to furnace. -
Page 18: Section 9. Installing Duct System
72,000 90,000 108,000 126,000 * GAS INPUT and MOTOR HP can be found on furnace rating plate. WARNING: Failure to install bottom closure panel could allow combustion products to enter circulating air stream, resulting in injury or death by asphyxiation. - Page 19 20 X 25 X 1 90,000 108,000 126,000 * GAS INPUT and MOTOR HP can be found on furnace rating plate. FILTER CABINETS Use a bottom filter cabinet, side filter cabinet, or return-air filter grille. Field fabricated filter cabinets should allow 1 inch spacing between filter and furnace.
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Page 20: Section 11. Checks Before Starting Furnace
SECTION 11. CHECKS BEFORE STARTING FURNACE Before starting furnace for the first time, be sure you can answer "Yes" to each of these questions: Is furnace properly equipped to operate with available fuel? Is furnace level? Have you cleared away all loose construction and... -
Page 21: Section 13. Manifold Pressure Adjustment
(Btu/cu.ft.) of natural gas in your area. NOTE: If furnace is being installed at an altitude of more than 2000 feet above sea level, you must derate the furnace. See Section 15, "Derating For High Altitude."... -
Page 22: Section 15. Derating For High Altitude
Gas Input = = 124,138 Btu per hour If you left no other pilots on, this is the furnace gas input. If you left water heater, dryer or range pilots on, allow for them in calculating correct furnace gas input. A... -
Page 23: Section 17. Changing Main Burner Orifices
11. Set room thermostat to highest setting and to heating mode. 12. Turn on electricity at electrical disconnect switch located next to furnace. Furnace will light. 13. Visually check that each burner lights promptly. 14. Check gas input following Section 14, "Checking Gas Burner Input Rate."... -
Page 24: Section 18. Adjusting Blower Speed
90,000 45-75 90,000 35-65 108,000 35-65 126,000 45-75 * Gas Input and Motor HP can be found on rating plate. ** These are factory settings. Table 10. Cooling Speed Selection. GAS* MOTOR AIR CONDITIONING TONNAGE INPUT SIZE AT 0.5 INCHES WC... -
Page 25: Section 20. Measuring Air Temperature Rise
Place slope gauge near fu rnace, level and adjust scale to read 0.00 inches W.C. Insert one static pressure tap into supply-air duct between furnace and cooling coil or in supply air plenum for heating only systems. pressure tap to positive pressure side of slope gauge. -
Page 26: Section 22. Setting Blower Timings
SECTION 23. MAINTAINING FURNACE IN GOOD WORKING ORDER WARNING: Use replacement parts listed in parts list only. Use of incorrect parts on this furnace could cause improper furnace operation, resulting in damage, injury or death. WARNING: Failure to disconnect electrical power before servicing furnace could result in electrical shock or death. -
Page 27: Section 24. Accessories
BOTTOM FILTER CABINET: Three sizes - one size for each furnace casing size. SIDE FILTER CABINET: Attaches to either side of furnace. One size fits all. BOTTOM CLOSURE: Seals bottom of furnace when only side return is used.