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Summary of Contents for H9MPT050F12B1

Page 1: ...ety codes In the United States follow all safety codes including the current edition National Fuel Gas Code N FGC NFPA No 54 ANSIZ223 1 In Canada refer to the current edition of the National Standard...

Page 2: ...tal MP Multiposition Upflow Downflow Horizontal Major Design Feature One Single Pipe 2 Two Pipe D I or2Pipe L Low NOx Denotes Brand N Single Stage P PVC Vent T Two Stage V Variable Speed MP T 0 75 B 1...

Page 3: ...ly Return F or C __ Filter Type and Size Fan Time ON Setting Fan Time OFF Setting Manual Gas Shut Off Upstream of Furnace Drip Leg Condensate Drain Connected YES _1 NO _1 YES _1 NO _1 NO_1 Condensate...

Page 4: ...To ensure safe and efficient operation of your unit you should do the the following 1 Thoroughly read this manual and labels on the unit This will help you understand how your unit operates and the h...

Page 5: ...ired Refer to Figure 4 for typical horizontal direct vent installation and basic connecting parts required Supply and return air plenums and duct are also required If furnace is a replacement it is us...

Page 6: ...6 413 16 3311 16 297 8 1918 16 273 16 175 16 215 _ 111 11 _ TRAP DOWNFLOV_ O ELECTRICAL _ _ _ VENT TRAP I _16 UPFLOW HORIZONTAL 7 _HTHERMOSTAT 2_ 4 47 8 281 2 1 2 181 2 TYP r 1 RIGHT SIDE 215 8 Unit C...

Page 7: ...side For horizontal installa tions the drain trap is vertically attached to the side panel below the furnace A minimum clearance of 5 below the furnace is re 440 01 2010 04 quired for the condensate...

Page 8: ...ocated and other spaces of the building Vent Pipe _ I A Draft Hood Typical Gas Water Heater Matc I I I 1 7 After it has been determined that each appliance vents properly return doors windows applianc...

Page 9: ...ce 2 Total Input 100 000 30 000 130 000 4 000 32 5 Sq In Vertical Appliance 1 Appliance 2 Total Input 100 000 30 000 130 000 2 000 65 Sq In Horizontal One permanent opening commencing within 12 of the...

Page 10: ...property damage Dual Certified 9MPT 9MPV Models This furnace is certified as a category IV appliance This furnace can be installed as a direct vent furnace using outside air for com bustion or the fur...

Page 11: ...vapor bar rier Use R values of 7 up to 10 R 11 if exposure exceeds 10 If Fiberglass insulation is used exterior to the structure the pipe MUST be boxed in and sealed against moisture When the vent or...

Page 12: ...the externally mounted condensate drain trap on the left or right side of the furnace The condensate drain trap supplied with the furnace MUST be used The drain line between the condensate drain trap...

Page 13: ...the vent fitting Securely attach vent fitting directly to combustion blower NOTE The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe with the drain stub at...

Page 14: ...ate to the open set of holes in the opposite side panel Drill two 7 64 diameter holes in the casing using the condensate trap as the template Ensure that the vent fitting and the 90 elbow is securely...

Page 15: ...ll two 7 64 diameter holes in the casing using the condensate trap as the template Route the pressure switch hose to the lower stub on the plastic transition box Cut off excess hose and discard Connec...

Page 16: ...must be relo cated on the plastic transition box Remove the three 4 screws that secure the blower to the transition Rotate the blower 180 and secure with the three 3 screws Use caution to not over ti...

Page 17: ...ace panel and relocate to the open hole in the furnace panel See Figure 8 through Figure 11 The vent pipe grommet is sized for 2 PVC pipe Install the vent pipe to the vent fitting on the combustion bl...

Page 18: ...injury and or property damage Install all couplings nipples and elbows using proper pro cedures for Joining Pipe and Fittings and maintain spac ing between vent and combustion air piping as indicated...

Page 19: ...e af fected by flue products expelled in close proximity to unprotected surfaces Sealing or shielding of the exposed surfaces with a cor rosion resistant material such as aluminum sheeting may be re q...

Page 20: ...xplosion hazard Models designated for Natural Gas are to be used with Natural Gas Only unless properly converted to use with LP gas Failure to properly vent this furnace can result in death personal i...

Page 21: ...5 2 8 1 4 2 5 1 2 2 3 1 1 42 GasSupply Pressure Gas supply pressure should be within minimum and maximum values listed on rating plate Pressures are usually set by gas sup pliers ManifoldGas PressureA...

Page 22: ...s over 4 000 require a different air pressure switch than the one installed at the factory Check parts listfor pressure switch and consult your distributor for part number and availability In Canada p...

Page 23: ...content of 1 000 BTU s per BTUContent Per Hour Footin Seconds cubic 1 000 1 meter Check with gas supplier for actual BTU content Turn OFF gas supply to all appliances and start furnace Use jumper wir...

Page 24: ...pe and fittings or other pipe ap proved by local code I OTE The use of copper tubing for gas piping is NOT approved by the state of Massachusetts 5 Use ground joint unions and install a drip leg no le...

Page 25: ...m low fire to high fire as requested by the thermostat The thermostat heat anticipators should be adjusted to a 10 set ting for both types of thermostats Low voltage connections to furnace must be mad...

Page 26: ...installed so the exterior of the heat exchanger can be viewed for inspections The access panel MUST be sealed to prevent leaks If separate evaporator and blower units are used install good sealing dam...

Page 27: ...of 2 insulation and vapor barrier 2 Insulate ductwork in indoor unconditioned areas with a minimum of 1 insulation with indoor type vapor barrier Filters A Filter must be used Filters are not supplie...

Page 28: ...cool position A 3 clearance is required on the right side of the furnace in order to run the condensate drain line Copper iron or plastic tubing may be used for the condensate drain line DownflowFurn...

Page 29: ...utside Dimension Base Spacer Side To Side 3 Set the base over the opening in the floor centering it over the opening Fasten the base to the floor with screws or nails See Figure 31 Figure 32 and Figur...

Page 30: ...essure and clockwise to increase 4 For altitudes up to 2000 set pressure to value shown in Table 5 0 3 8mm water column For altitudes of 2000 to 8000 see Section 5 for correct pressure setting Adjust...

Page 31: ...n of unused blower motor speed leads Use the chart Table 8 to determine the blower mo tor speed settings Blower Speed Chart Wire Color Black Orange Blue Red Motor Speed High Med High Medium Low Med Hi...

Page 32: ...s 1 and 2 adjust the continuous blower speeds Switches 3 4 and 5 adjust the heating speeds Switches 6 7 and 8 ad just the cooling speed See the TechnicalSupportManual for the switch settings for the d...

Page 33: ...Delay time before switching the inducer to low speed de energizing the high fire solenoid and the fan switches to Low Heat speed Timed from initial application of the Heating request if the Wl request...

Page 34: ...it switch string open Flame sensed out of sequence Flame signal still present Soft Lockout Maximum retry count exceeded failed to light within 4 trials for ignition Soft Lockout Maximum recycle count...

Page 35: ...l Gas Valve Honeywell On Off Switch Manifold Adjustment Hi _ INLET Diagnostic Light on some models Pilot Adjustment OUTLET 25 22 25a OUTLET Manifold Pressure LO Adjustment HI INLET 25 22 49a 440 01 20...

Page 36: ...L FOR HEAT I I _1_ WAtTFORPRESSURE SWITCHESTOOPEN J COMBUSTION BLOWERDE ENERGIZED J__ FIVEMINUTEWAITPERIOD I THREESECONDFLAME L T _ FAILURERECYCLEDELAY YES I PILOTVALVECLOSES PILOTIGNITOROFF PILOTANDM...

Page 37: ...heat speed after the ON delay Soft Lockout Failed to light pilot during 90 sec trial for ignition Combustion air blower is de energized Circulating blower is de energized after the OFF delay After 5 m...

Page 38: ...at still present High Pressure closed when should be open i e when call for heat begins Combustion blower is not energized until pressure switches open High Pressure open when should be closed i e lon...

Page 39: ...must attach to the termination kit The termination kit must terminate outside the structure and must be installed per the instructions outlined below for vertical or horizontal termination Vertical t...

Page 40: ...vent termination kit Clean and cement the parts using the procedures for Join ing Pipe and Fittings section of the manual A Cement the Y Concentric fitting to the 4 diameter kit pipe See Figure 42 B C...

Page 41: ...c Vent Sidewall Figure 44 Attachment Strap Field Supplied X _ AirC mbusti n Vent _ _V ent _ _ _ Flush to Combustion iiiiii 1 max Air 45 Elbow Field Supplied 25 22 02 Note Securing strap must be field...

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