Instruction/ maintenance manual of the product 422690 I HP (Hewlett-Packard)
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422690 I HIGH - EFFICIENCY UPFLOW FURNACE INSTALLER'S INFORMATION MANUAL R T I F I C E E D S I E D G N ATTENTION, INSTALLER! After installing the furnace , show the user how to tu rn off gas and electricity to the fu rn ace. Point out control and switch lo cations for tu rn ing off gas and electricity.
Page 2 Installer’s Information Manual TABLE OF CONTENTS SECTION 1. IMPORTANT SAFETY RULES ............................................................................................................. 2 SECTION 2. MEETING C ODES .....................
Installer’s Information Manual Page 3 Rule 8. Completely seal supply and retu rn air ducts to fu rn ace casing. Duct system must run to an area outside fu rn ace room or closet. Seal duct work wherever it runs through walls, ceilings or floors of fu rn ace ro om or closet.
Page 4 Installer’s Information Manual GAS INPUT* MOTOR SIZE* FURNACE WIDTH** RETURN AIR SIZE** SUPPLY AIR SIZE** CLEARANCE TO COMBUSTIBLES*** (INCHES) VENT SIZE (Btu/hr) (HP) “A” “B” “C”.
Installer’s Information Manual Page 5 SECTION 4. PROVIDING VENTING AND COMBUSTION AIR This fu rn ace must be connected to a plastic venting system adequate to remove flue gases to the outside atmosphere. It must be vented in accordance with these instructions and local building codes.
Page 6 Installer’s Information Manual TERMINATION LOCATION AND CLEARANCES Vent pipe and combustion - air - supply pipe (when direct vented) may terminate through a roof or through a sidewall. Roof termination has t he advantages of better pipe protection and fewer condensate - damage conce rns .
Installer’s Information Manual Page 7 INSTALLATION” under the “NON - DIRECT VENTING” instructions. A non - direct vented fu rn ace takes all air for combustion from the room in which fu rn ace is installed.
Page 8 Installer’s Information Manual Table 1. Maximum Pipe Length -- Direct Vent ALLOWABLE PIPE LENGTH (feet of each pipe) ALTITUDE FURNACE PIPE NUMBER OF SWEEP ELBOWS (each pipe) (SEE NOTE 1) INPUT DIA.
Installer’s Information Manual Page 9 DIRECT - VENT TERM INATION You may terminate vent and combustion air pipes either vertically (through the roof) or horizontally (through a side wall). Vertical (through the roof) venting is preferred because it offers protection from pipe damage and condensate damage.
Page 10 Installer’s Information Manual Table 2. Maximum Pipe Length -- Non - Direct Vent ALLOWABLE PIPE LENGTH (feet) ALTITUDE FURNACE PIPE NUMBER O F SWEEP ELBOWS (SEE NOTE 1) INPUT DIA.
Installer’s Information Manual Page 11 NON - DIRECT VENT TERMINATION You may terminate vent pipe either vertically (through the roof) or horizontally (through a sidewall). Vertical (through the roof) venting is preferred because it offers protection from pipe damage and is less likely to cause condensate damage.
Page 12 Installer’s Information Manual Exposure to the following substances in the combustion air supply may also require outdoor air for combustion: ? ? Aerosols ? ? Permanent wave solutions ? ? Ch.
Installer’s Information Manual Page 13 You must provide air sufficient for all gas appliances within fu rn ace space. Locate one combustion and ventilation air opening within 12 inches of top of fu rn ace space. Locate another within 12 inches of bottom of fu rn ace space.
Page 14 Installer’s Information Manual Calculate the free area required. Because combustion and ventilation air ducts run horizontally, allow 2,000 Btu per hour.
Installer’s Information Manual Page 15 WARNING : When test pressure is above 1/2 psi (14 inches W.C.), completely disconnect fu rn ace and gas control from gas supply line. Failure to isolat e fu rn ace and gas control from test pressure could damage them, causing gas to leak, resulting in fire or explosion.
Page 16 Installer’s Information Manual Figure 15. Fu rn ace Wiring Diagram..
Installer’s Information Manual Page 17 SECTION 8. SEQUENCE OF OPERATION HEATING MODE 1. Thermostat calls for heat ("R" and "W" terminals connected). Fan Timer verifies that bu rn er limits, pri mary limit and pressure switches are in normally closed (NC) position.
Page 18 Installer’s Information Manual SECTION 9. INSTALLING DUCT SYSTEM Proper ly size duct system based on heat loss and heat gain calculations to ensure good heating and cooling installations, potentially fewer call - backs, and delivery of required circulating air.
Installer’s Information Manual Page 19 Follow these instructions and the filter manufacturer's instructions for minimum size and quantity recommendations. Air velocity must not exceed 300 feet per minute through low velocity disposable filters.
Page 20 Installer’s Information Manual SECTION 11. CHECKS BEFORE STARTING FURNACE Before starting fu rn ace for the first time, be sure you can answer "Yes" to each of these questions: 1. Is fu rn ace properly equipped to operate with available fuel? 2.
Installer’s Information Manual Page 21 SECTION 13. MANIFOLD PRESSURE ADJUSTMENT You will need a 0 to 15 inch water manometer with 0.1 inch resolution and a 1/8" NPT manual shut - off valve to measure actual manifold pressure. WARNING : Correct manifold pressure is necessary for proper ignition and bu rn er operation.
Page 22 Installer’s Information Manual Example : Assume it took 29 seconds for one cubic foot of gas to flow and heating value of 1,000 Btu/cu.ft. 1,000 x 3,600 Gas Input = = 124,138 Btu per hour 29 If you left no other pilots on, this is the fu rn ace gas input.
Installer’s Information Manual Page 23 Table 7. Natural Gas Orifice Size. ELEVATION GAS Up 2001 3001 4001 5001 6001* 7001* 8001* 9001* HEATING to to to to to to to to to VALUE** 2000 3000 4000 5000 6000 7000 8000 9000 10000 (Btu/cu. ft.) Feet Feet Feet Feet Feet Feet Feet Feet Feet 800 - 849 2.
Page 24 Installer’s Information Manual SECTION 18. ADJUSTING BLOWER SPEED Determine initial heating and cooli ng speeds in system design stage. See Specification Sheet for airflow data. Depending on tests performed in following sections, you may need to change blower motor speed.
Installer’s Information Manual Page 25 5. Make sure that blower speed taps are set for proper heating and cooling. Refer to Section 18, "A djusting Blower Speed." Heating speed should be set according to Table 9. Cooling speed should be set to meet cooling equipment requirements.
Page 26 Installer’s Information Manual 4. Connect a manometer to gas control outlet (manifold) pressure tap. 5. Set room thermostat to its highe st temperature. 6. Tu rn on electricity at electrical disconnect switch located next to fu rn ace. 7. Diagnostic light on Fan Timer should be on and cycling bright - dim - bright - dim.
Installer’s Information Manual Page 27 ? ? There must be no obvious signs of deterioration of the fu rn ace. Inspection must include bu rn ers, pilot, heat exchanger, inducer pan, and draft inducer. ? ? Flame holders, located inside the mai n bu rn ers, should be free of lint or dirt.
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