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Yumpu 9MPT050F12A Installation Instructions Manual

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Recognize safety information. This is the safety--alert symbol
the potential for personal injury.
Understand the signal words DANGER, WARNING, or CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most
serious hazards, those that will result in severe personal injury or death. WARNING signifies a hazard that could result in personal injury or death.
CAUTION is used to identify unsafe practices that could result in minor personal injury or product and property damage.
Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified personnel should
install, repair, or service heating equipment.
Untrained service personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be
performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached
to or shipped with the unit and other safety precautions that may apply.
Follow all safety codes. In the United States, follow all safety codes including the current edition National Fuel Gas Code (NFGC) ANSI
Z223.1--2002/NFPA No. 54--2002. In Canada, refer to the current edition of the National Standard of Canada Natural Gas and Propane Installation
Code (NSCNGPIC) CSA B149.1--00. Wear safety glasses and work gloves. Have fire extinguisher available during start--up and adjustment
procedures and service calls.
These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions
exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require
these instructions as a minimum for a safe installation.
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Electric Shock Hazard
Turn Off All Power Before
Servicing.
Failure to do so can result in
death, personal injury and/or
property damage.
Printed in U.S.A.
SAFETY REQUIREMENTS
!

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*9MPT & *9MPV
* Denotes Brands (C, H, T)
FAN ASSISTED,
DIRECT VENT GAS FURNACE
. When you see this symbol on the furnace and in instructions manuals be alert to
INSTALLER: Affix these instructions
on or adjacent to the furnace.
CONSUMER: Retain these
instructions for future reference.
3
4
7
10
26
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International Comfort Products Corporation (USA)
Lewisburg, TN 37091
!
FIRE OR EXPLOSION HAZARD
This furnace is not designed for use in mobile
homes, trailers or recreational vehicles.
Such use could result in death, bodily injury
and/or property damage.
LP1
4/29/2003
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440 01 2020 (01)
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  • Page 1: Table Of Contents

    *9MPT & *9MPV * Denotes Brands (C, H, T) FAN ASSISTED, DIRECT VENT GAS FURNACE SAFETY REQUIREMENTS Recognize safety information. This is the safety--alert symbol . When you see this symbol on the furnace and in instructions manuals be alert to the potential for personal injury.
  • Page 2 START- -UP CHECK SHEET For 90+ Furnace (Keep this page for future reference) Dealer Name: Address: Business Card Here City, State(Province), Zip or Postal Code: Phone: Owner Name: Manual Gas Shut--Off Upstream of Furnace/Drip--Leg? Address: Condensate Drain Connected? City, State(Province), Zip or Postal Code: Condensate Drain Trapped? Transition Pressure switch hose relocated for U/D/H Model Number:...

  • Page 3: Safe Installation Requirements

    1. Safe Installation Requirements · Install correct filter type and size. · Unit MUST be installed so electrical components are pro- DEATH, PERSONAL INJURY AND/OR PROPERTY tected from direct contact with water. DAMAGE Safety Rules Installation or repairs made by unqualified persons Your unit is built to provide many years of safe and dependable ser- can result in hazards to you and others.

  • Page 4: Installation

    vices that are designed to turn the furnace off and prevent it from Install a reliable remote sensing device that will notify some- restarting in the event of various potentially unsafe conditions. body of freezing conditions within the home. If your furnace remains off for an extended time, the pipes in your Winter Shutdown home could freeze and burst, resulting in serious water damage.
  • Page 5 · Located or physically protected from possible damage by Figure 2 Typical Downflow Installation a vehicle. See Vent Termination 10. Local codes may require a drain pan under the entire furnace Coupling on inside Shielding in Vent Section. and condensate trap when the furnace is installed in attic ap- and outside of wall to plication.
  • Page 6 (ALTERNATE) TRAP UPFLOW/HORIZONTAL THERMOSTAT TYPE BOTTOM RIGHT SIDE TRAP (COUNTERFLOW) ELECTRICAL AIR INTAKE (ALTERNATE) VENT TRAP UPFLOW/HORIZONTAL THERMOSTAT Cabinet Cabinet Bottom Bottom U it Unit Unit Capacity *9MPT050F12A *9MPT075F14A *9MPT100J16A *9MPT125L20A *9MPV050F12A *9MPV075F12A 25--23--36b *9MPV100J20A *9MPV125L20A 440 01 2020 01...

  • Page 7: Combustion & Ventilation Air

    Horizontal Furnace Installation If the furnace is to be suspended from the floor joists in a crawl space or the rafters in an attic, it is necessary to use steel pipe This furnace can be installed horizontally in an attic, basement, straps or an angle iron frame to rigidly attach the furnace to prevent crawl space, alcove, or suspended from a ceiling in a basement or movement.
  • Page 8 Outside Air (This is ONLY a guide. Subject to codes of country having jurisdiction.) Figure 5 This installation NOT approved in Canada Gas Vent Gable Vent Gas Vent Ventilated Attic Top Above Insulation Alternate Inlet Air (1) Outlet Air (2) Outlet Soffit Vent Outlet Air (1)
  • Page 9 Install air intake a minimum of 12² above maximum snow level and clear of any obstruction. Duct or ventilation open- ing requires one square inch of free area per 4,000 BTUH of CARBON MONOXIDE POISONING HAZARD total input rating for all gas appliances in area. Failure to follow the steps outlined below for each Air inlet MUST be screened with not less than ²...

  • Page 10: Vent & Combustion Air Piping

    4. Vent and Combustion Air Piping Determine the size required for the vent pipe and air inlet pipe. Loosely assemble all venting parts without adhesive (pipe CARBON MONOXIDE POISONING, FIRE AND EXPLO- joint cement) for correct fit before final assembly. SION HAZARD.
  • Page 11 Piping Insulation Guidelines Pipe Diameter Table Table 4 Dual Piping ONLY NOTE: Use closed cell, neoprene insulation or equivalent. If Fiber- 50,000 & 75,000 Btuh Furnaces glass or equivalent insulation is used it must have a vapor barrier. Use R values of 7 up to 10¢, R--11 if exposure exceeds 10¢. If Fiber- 40¢...
  • Page 12 ² may also be used, as allowed by local codes. Alternate drain Vent Termination Clearances Figure 7 pipes and hoses may be used as allowed by local codes. (United States Only) The drain line must maintain a ² per foot downward slope toward In Canada See Canadian Fuel Gas Code the drain.
  • Page 13 Figure 8 Upflow Installations Top Vent On Some Models ONLY Yellow or black Plastic Caps (2) Coupling & Clamps (Optional) Vent Drain & Clamps Dual Pressure Switch Detail Single Pressure Switch ² ² ² ² ID Rubber Tube Drain Tee ²...
  • Page 14 Figure 9 Upflow Installations Vent thru Left Side Yellow or black Plastic On Some Models 2² ² ² ² PVC Coupling ONLY Coupling & Clamps (Optional) Vent Drain & Clamps Either: The PVC Drain Tee or a field supplied 2² ² ² ² PVC Tee Dual Pressure Switch Detail Single Pressure Switch ²...
  • Page 15 Figure 10 All Models Vent thru Right Side Yellow or black Plastic On Some Models ONLY 2² ² ² ² PVC Coupling Vent Drain Either: The PVC & Clamps Drain Tee or a field supplied 2² ² ² ² PVC Tee Single Pressure Switch Detain Dual Pressure Switch ²...
  • Page 16 Figure 11 Downflow Left Side Vent and Trap SIDE VIEW Yellow or black Plastic Rotate downward 5° ° ° ° to 10° ° ° ° Coupling & Clamps 2² ² ² ² PVC Coupling (Optional) NOTE: Built--in channel will Vent Drain be angled 5°...
  • Page 17 Figure 12 Downflow Right Side Vent and Trap Yellow or black Plastic Trap Connection “Clamp ears” Pointed OUT Vent Drain & Clamps Preassemble & insert into furnace SIDE VIEW ² ² ² ² ID Rotate downward Rubber Tube 5° ° ° ° to 10° ° ° ° Coupling &...
  • Page 18 Figure 13 Horizontal Left Thru Top Single Pressure Switch Detail Vent Drain Yellow or black Plastic Trap Connection & Clamps Caps “Clamp ears” Pointed OUT Preassemble & insert into furnace Alternate Orienation ² ² ² ² ID Rubber Tube Dual Pressure Switch Relief Tube ²...
  • Page 19 Figure 14 Horizontal Left- -Side Vent Single Pressure Switch Detail Alternate Orienation Yellow or black Plastic Cap Field Supplied Tee Level or Sloped towards Tee Vent Drain & Clamps Dual Pressure Switch ² ² ² ² ID Rubber Tube ² ² ² ² ID Drain Elbow AIR FLOW Drain Hose &...
  • Page 20 Figure 15 Horizontal Right thru Top Single Pressure Switch Detail Trap Connection “Clamp ears” Alternate Orienation Pointed OUT Yellow or black AIR FLOW Plastic Cap Preassemble & insert into furnace Coupling & Clamps (Optional) Vent Drain & Clamps Field WARNING Supplied Tee Add Cap and Clamp...
  • Page 21 Figure 16 Horizontal Right- -Side Vent Single Pressure Switch Detail Yellow or black Plastic Cap Coupling & Clamps (Optional) AIR FLOW Vent Drain Field & Clamps Supplied Tee Level or Sloped towards Tee Tee Trap White PVC ² ² ² ² ID Drain (loose parts bag) ²...
  • Page 22 Figure 17 Connecting Tee Trap to Condensate Trap and Main Drain Line Open Tee Tee Trap Condensate Trap Evaporator Coil Drain Line (Op- tional) Main Drain Line 25--24--41N Connecting Vent and Combustion Air Piping The Tee Trap must be connected to the main condensate drain line as conceptually shown above.
  • Page 23 Joining Pipe and Fittings right side panels. Remove the 3² hole plug from the side panel and relocate to the air intake hole in the top panel. Use four screws to seal the four(4) mounting holes in the top panel next to the hole plug.
  • Page 24 CAUTION Sidewall Termination with Exterior Figure 20 Risers to Get Above Snow Level or Grade Maintain a minimum of 36² between combustion air inlet Level and clothes dryer vent. Terminate the combustion air *18, Minimum for cold climates intake as far as possible from any air conditioner, heat 8”...
  • Page 25 Concentric Vent and Combustion- -Air Sidewall Inlet Vent and Exhaust- -Air Ter- Figure 22 Figure 25 Roof Termination mination with Exterior Risers 18² ² ² ² Min. for Cold Climates “A” (Sustained Below 0° ° ° ° F) 8² ² ² ² Min. Exhaust 8²...

  • Page 26: Gas Supply And Piping

    Recommended Alternate Installation Figure 27 for Sustained Cold Weather (- -0° ° ° ° F & below) OVERHANG 12² ² ² ² MIN. EXHAUST 90° ° ° ° INLET 12² ² ² ² MIN. Ground Level OR Snow Level 25- 23- 73 SIDE VIEW FRONT VIEW 12²...
  • Page 27 Manifold Gas Pressure Adjustment General Derating Rules (Hi & Lo Fire) For operation with natural gas at altitudes above 2,000¢, ori- fice change and/or manifold pressure adjustment may be re- NOTE: Make adjustment to manifold pressure with burners operat- quired to suit gas supplied. Check with gas supplier. If orifice ing.
  • Page 28 Figure 29 Typical Gas Piping for Upflow Gas Pipe Grommet Drip Leg and Union, Union* should be outside the (Single Pipe) cabinet. Manual shut- -off valve MUST be upstream of Manual shut- off dripleg, union, and furnace. valve 3² ² ² ² pipe nipple Use elbows and 3²...
  • Page 29 Figure 30 Typical Gas Piping for Downflow Use elbows and 3² ² ² ² pipe nipple to connect valve to piping when using left side gas pipe entry. LP Low pressure switch. Manual shut- off Optional LP conversion. valve Drip Leg and Union, Union* should be outside the cabinet. Manual shut- -off valve MUST be upstream of dripleg, union, and furnace.

  • Page 30: Electrical Wiring

    6. Electrical Wiring Humidifier/Electronic Air Cleaner The furnace is wired for humidifier and/or electronic air cleaner Electrical shock hazard. connection. Turn OFF electrical power at fuse box or service CAUTION panel before making any electrical connections and ensure a proper ground connection is made Do NOT exceed 115V/0.8 amp.

  • Page 31: Ductwork And Filter

    Fan Timer Connections Figure 32 Dip Switch See “Wiring Diagram” for switch settings FUSE 7. Ductwork and Filter Connections NOTE: On upflow installations, return air can enter through either CARBON MONOXIDE POISONING HAZARD. side, both sides, or the bottom. On horizontal or downflow installa- tions the return air must enter through the knockout opening in the Failure to properly seal duct can result in death, personal lower panel of the furnace.
  • Page 32 NOTE: To further reduce noise, install acoustical air turning vanes Figure 35 Bottom Mounted Filter Rack and/or line the inside of duct with acoustical material. Sizing Existing or new ductwork MUST be sized to handle the correct amount of airflow for either heating only or heating and air condi- tioning.
  • Page 33 Downflow Furnace Installation Subbase for Combustible Floor Non- Combustible Floor Installation NOTE: The three(3) screws in the top panel of the furnace next to the duct flange MUST be removed to provide serviceability of the Fabricate a plenum to the dimensions given in Figure 3, for the fur- primary heat exchangers in the downflow installation nace outlet.

  • Page 34: Checks And Adjustments

    This subbase for combustible floors has been designed so that the height of the subbase raises the downflow coil off the floor to allow Figure 38 Coil Cabinet Subbase easy installation of the condensate drain. See Figure 40. Figure 40 Condensate Line Raised by Base Plenum 2”...
  • Page 35 Repeat steps 2 thru 4 with the furnace operating on low fire Pilot Burner for 10 minutes by using a jumper wire on the R to W1 thermo- Figure 41 stat connections on the fan board. Proper Flame Remove the jumper wire after the adjustments are com- Adjustment Flame Sensor plete.

  • Page 36: Furnace Maintenance

    Changing Blower Speed Note: For motors with (4) speed leads, it will be necessary to (*9MPV Models) tape off the terminal of the motor speed lead removed from the “Heat” or “Cool” terminal with electrical tape since an open terminal will not be available at the “Unused Motor Lead”...

  • Page 37: Sequence Of Operation & Diagnostics

    See “User’s Information Manual” and the “Service Manual”. ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in dangerous operation, serious injury, death or property damage. Improper servicing could result in dangerous operation, serious injury, death or property damage. ·...
  • Page 38 Heating Request (two stage thermostat operation, 4th DIP switch must be in on position) (see furnace wiring diagram): 24 VAC signals applied to W1 terminal of EFT control. · Same response as single stage thermostat operation described above except the control will not go to high fire, High Heat fan speed unless a W2 signal is applied.
  • Page 39 Typical Gas Valve Honeywell Figure 44 Manifold Adjustment Manifold Pressure Diagnostic Light (Hidden) Adjustment (on some models) On/Off Switch Pilot Adjustment OUTLET INLET INLET OUTLET 25--22--25a 25--22--49a 440 01 2020 01...
  • Page 40 HONEYWELL SV9541Q “SMART VALVE” Sequence of Operation POWER APPLIED TO APPLIANCE THERMOSTAT CALLS FOR HEAT HI AND LOW AIR PROVING WAIT FOR PRESSURE SWITCHES TO OPEN SWITCHES PROVED OPEN? COMBUSTION AIR BLOWER ON HIGH SPEED FIVE MINUTE WAIT PERIOD HI AND LOW AIR PROVING SWITCHES COMBUSTION BLOWER DE--ENERGIZED PROVED CLOSED WITHIN 30 SECONDS? PRE--PURGE...
  • Page 41 HONEYWELL SV9541Q “SMART VALVE” Trouble shooting The 6 + X designation indicates a combination of flash codes: 6 flashes shows the control is in soft lockout, followed by X flashes to indicate the reason the control went into soft lockout. Last status code indicates repair to address first INDICATES CHECK/REPAIR STATUS...
  • Page 42 HONEYWELL SV9541Q “SMART VALVE” Trouble shooting continued INDICATES CHECK/REPAIR STATUS Soft Lockout. Last failure was pressure switch Ignition system control switch must be in the ON position. Maximum recycle count exceeded 6 Flashes Pressure switches operation, tubing, and wiring. 3 Flashes Restrictions in furnace air intake or vent piping.

  • Page 43: Concentric Vent Termination

    11. Concentric Vent Termination Vent Termination Clearances Figure 45 Kit Components Kit Contents: 3² Rain Cap or 2² Rain Cap CARBON MONOXIDE POISONING, FIRE AND EXPLO- 3² Diameter SDR--26 Pipe, 19 ² Long or SION HAZARD. 4² Diameter SDR--26 Pipe, 37 ²...
  • Page 44 Dimension D may be lengthened to 60² max. or shortened menting when field disassembly is desired for cleaning (See by cutting the pipes to 12² min. Dimension A will change ac- Figure 48) cording to D dimension. (See Figure 47) Rain Cap to Vent Pipe Assembly Figure 48 Concentric Vent Dimensional...
  • Page 45 Install the rain cap and the small diameter pipe assembly in Concentric Vent and Combustion- -Air the Y concentric fitting and the large pipe assembly. Ensure Figure 49 Side Termination that the small diameter pipe is bottomed out and securely cemented in the Y concentric fitting.
  • Page 46 440 01 2020 01...

  • Page 47: Tech Support And Parts

    Four Position Furnace Models Dual Certified *9MPT050F12B1 *9MPT075F14B1 *9MPT100J16B1 *9MPT125L20B1 *9MPV050F12B1 *9MPV075F14B1 *9MPV100J16B1 *9MPV125L20B1 * Denotes Brand 25- -23- -30 International Comfort Products Corporation (USA) Lewisburg, TN 37091 USA Fast Parts Division 615- -248- -8300 Save This Manual For Future Reference 440 01 2020 01...
  • Page 48 TECHNICAL SUPPORT Specifications *9MPT050F12B *9MPT075F14B *9MPT100J16B *9MPT125L20B General Gas Type L.P. L.P. L.P. L.P. Transformer Size (VA) T’stat Heat Anticipator Input (Btuh) Std/Alt. Hi Fire 50,000 75,000 100,000 125,000 Lo Fire 35,000 53,000 70,000 87,500 Output (Btuh) Std/Alt. Hi Fire 46,000 69,000 92,000...
  • Page 49 CIRCULATION AIR BLOWER DATA For 050 Models 3 Ton Units For 075 Models 3.5 Ton Units Speed Speed Med L Med H Med L Med H 1083 1301 1408 1025 1455 1724 1050 1242 1347 1001 1410 1662 1028 1195 1295 1366 1601...
  • Page 50 Wiring Diagram 12 . FAN CONTROL MODULE COOL ON DELAY: 5 SEC EAC + HUM: 0.8 A MAX. COMBINED COOL OFF DELAY: 90 SEC HEAT ON DELAY: 30 SEC HEAT OFF DELAY THERMOSTAT TYPE SWITCH 3 NOT DEFINED OR SWITCH 3 NOT USED SINGLE STAGE 2 STAGE FACTORY...
  • Page 51 (*9MPT) 13 . 440 01 2020 01...
  • Page 52 Replacement Parts - *9MPT Models -- *9MPT050F12B1, *9MPT075F14B1, *9MPT100J16B1 & *9MPT125L20B1 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *9MPT *9MPT Description Description Part Part Description Description Part Part Functional Number Non- Functional Number...
  • Page 53 Replacement Parts - *9MPT Models -- *9MPT050F12B1, *9MPT075F14B1, *9MPT100J16B1 & *9MPT125L20B1 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *9MPT *9MPT Description Description Part Part Description Description Part Part Functional Number Functional Number...
  • Page 54 TECHNICAL SUPPORT Specifications *9MPV050F12B *9MPV075F12B *9MPV100J20B *9MPV125L20B General Gas Type L.P. L.P. L.P. L.P. Transformer Size (VA) T’stat Heat Anticipator Input (Btuh) Std/Alt. Hi Fire Lo Fire 50,000 75,000 100,000 125,000 Output (Btuh) Std/Alt. Hi Fire 35,000 53,000 70,000 87,500 Lo Fire 46,000 69,000...
  • Page 55 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Continuous Blower (CFM) @ 0.10² ² ² ² Static Lo Heat Air Temperature Adjustment (° ° ° ° F)** Switch Settings Furnace Model Switch Settings Furnace Model 100K 125K 100K 125K...
  • Page 56 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Figure 1 *9MPV050 COOLING (CFM VS. EXTERNAL STATIC PRESSURE) 1400 1200 1000 ESP² ² ² ² W.C. Figure 2 *9MPV050 Hi HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 1200 1000 101,110,111 ESP²...
  • Page 57 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Figure 3 *9MPV050 Lo HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 1000 ESP² ² ² ² W.C. Figure 4 *9MPV075 COOLING (CFM VS. EXTERNAL STATIC PRESSURE) 1800 1600 1400 1200 1000 ESP²...
  • Page 58 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Figure 5 *9MPV075 Hi HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 1400 1200 1000 101,110,111 ESP² ² ² ² W.C. Figure 6 *9MPV075 Lo HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 1400 1200 1000...
  • Page 59 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Figure 7 *9MPV100 COOLING (CFM VS. EXTERNAL STATIC PRESSURE) 2500 2000 1500 1000 ESP² ² ² ² W.C. Figure 8 *9MPV100 Hi HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 2500 2000 1500...
  • Page 60 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Figure 9 *9MPV100 Lo HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 1800 1600 1400 1200 1000 ESP² ² ² ² W.C. Figure 10 *9MPV125 COOLING (CFM VS. EXTERNAL STATIC PRESSURE) 2500 2000 1500...
  • Page 61 Circulation Air Blower Data - *9MPV Heating, Cooling & Continuous Airflow Settings Figure 11 *9MPV125 Lo HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 2500 2000 1500 1000 ESP² ² ² ² W.C. Figure 12 *9MPV125 Hi HEAT (CFM VS. EXTERNAL STATIC PRESSURE) 2500 2000 1500...
  • Page 62 Wiring Diagram ( HP Variable Speed Blower Motor) 14 . 440 01 2020 01 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE...
  • Page 63 Wiring Diagram (1 HP Variable Speed Blower Motor) 440 01 2020 01 THIS DATA IS SUBJECT TO CHANGE WITHOUT NOTICE...
  • Page 64 (*9MPV) 15 . 440 01 2020 01...
  • Page 65 Replacement Parts - *9MPV Models -- *9MPV050F12B1, *9MPV075F12B1, *9MPV100J20B1 & *9MPV125L20B1 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *9MPV *9MPV Description Description Part Part Part Part Description Functional Number Number F12A F12A...
  • Page 66 Replacement Parts - *9MPV Models -- *9MPV050F12B1, *9MPV075F12B1, *9MPV100J20B1 & *9MPV125L20B1 (Natural Gas) Replacement part supplied will be current active part. For parts not listed, consult place of purchase. *9MPV *9MPV Part Part Part Part Description Description Number Number F12A F12A J20A L20A...

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