Ingersoll-Rand M951P040BD24AA Installer'S Manual Download Page 31

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18-CD35D1-1 31

INSTALLER’S GUIDE

NOTE:
The manifold pressure must be referenced to

the burner box. The burner box pressure tap

equalizes the gas valve pressure regulator.

Manifold pressure is checked by installing a

tee (field supplied) in the tubing, between the

tee coming from the burner box tube and the

gas valve, in addition to the regular gas valve

pressure tap on the outlet side of the gas valve.

See Figure 55.

▲

CAUTION

Replace manifold pressure tap threaded plug and

leak check after checking/ adjusting manifold gas

pressure.

Table 19 lists the main burner orifices used with the furnace. If a

change of orifices is required to correct the furnace input rating.

Refer to Table 20.
TABLE 17

FINAL MANIFOLD PRESSURE SETTINGS

MODEL

FUEL

PRESSURE

NATURAL GAS

LP GAS

M951P040BU24AA

3.5" W.C.

11.0" W.C.

M951P060BU36AA

3.5" W.C.

11.0" W.C.

M951P080BU42AA

3.5" W.C.

11.0" W.C.

M951P100CU48AA

M951P100DU60AA

3.5" W.C.

11.0" W.C.

M951P120DU60AA

3.3" W.C.

11.0" W.C.

M951P040BD24AA

3.5" W.C.

11.0" W.C.

M951P065BD42AA

3.0" W.C.

9.5" W.C.

M951P085CD48AA

3.5" W.C.

11.0" W.C.

M951P110DD60AA

4.5" W.C.

11.0" W.C.

4. Turn on system power and energize valve.
5. Adjust gas heat by removing the adjustment regulator

cover screw.

a. To increase outlet pressure, turn the regulator adjust

screw clockwise.

b. To decrease outlet pressure, turn the regulator adjust

screw counterclockwise.

c. Adjust regulator until pressure shown on manometer

matches the pressure specified in Table 17.
1. The input of no more than nameplate rating and

no less than 93% of the nameplate rating, unless the

unit is derated for high altitude.

d. Replace and tighten the regulator cover screw

securely.

6. Cycle the valve several times to verify regulator setting.

a. Repeat steps 5-6 if needed.

7. Turn off all electrical power to the system.
8. Remove the manometer and flexible tubing and tighten

the pressure tap screw.

9. Using a leak detection solution or soap suds, check for

leaks at the pressure outlet boss and pressure tap test

screw.

10. Turn on system power and check operation of the unit.

▲

WARNING

SAFETY HAZARD
Replace and/ or tighten all plugs removed or

loosened when adjusting gas pressure. Leak

check the fittings before placing the furnace into

regular service. Failure to follow this warning

could result in fire, explosion, or property damage.

Summary of Contents for M951P040BD24AA

Page 1: ...version kit BAYLPSS210B LP kit with stainless steel burners BAYLPSS220B LP kit with stainless steel burners BAYMFGH100A Manufactured mobile home kit BAYRACK960A Internals filter rack kit for upflow models BAYAIR30AVENTA Concentric vent kit for 2 2 5 3 vent system BAYVENT200B Sidewall vent termination kit for direct vent furnaces BAYVENT500A Side vent kit for downflow models only BAYSWT01AHALTA Hig...

Page 2: ...0 of the furnace combustion air requirement must come from outside the structure The furnace return air temperature range is between 55 and 80 degrees Fahrenheit Clean the furnace duct work and components upon substantial completion of the construction process and verify furnace operating conditions including ignition input rate temperature rise and venting according to the manufacturer s instruct...

Page 3: ...ound report the damage immediately to the delivering agency Codes and local utility requirements governing the installation of gas fired equipment wiring plumbing and flue connections must be adhered to In the absence of local codes the installation must conform with latest edition of the National Fuel Gas Code ANSI Z223 1 National Installation Code CAN CGA B149 1 The latest code may be obtained f...

Page 4: ...nches 46 cm above the floor and the furnace must be located or protected to avoid physical damage from vehicles IMPORTANT The furnace must be installed level The only allowable variation would be slightly to the left and or forward in upflow installations or slightly toward the front in horizontal installations This is necessary for proper condensate drainage NOTE On upflow 5 ton airflow models wh...

Page 5: ...N SOME MODELS AT DIFFERENT ALTITUDES REFER TO THE VENT LENGTH TABLE FOR PROPER APPLICATION MODEL DIM A DIM B DIM C DIM D DIM E DIM F M951P040BU24AA M951P060BU36AA M951P080BU42AA 17 1 2 2 1 4 16 1 4 16 7 1 2 2 M951P100CU48AA 21 2 1 2 19 3 4 19 1 2 9 3 M951P100DU60AA M951P120DU60AA 24 1 2 2 15 16 23 1 4 23 10 3 15th digit is a service code and may be A Z ...

Page 6: ...DOWNFLOW HORIZONTAL ALL DIMENSIONS ARE IN INCHES MODEL DIM A DIM B DIM C DIM D M951P040BD24AA M951P065BD42AA 17 1 2 2 1 4 16 1 4 16 M951P085CD48AA 21 2 1 2 19 3 4 19 1 2 M951P110DD60AA 24 1 2 2 15 16 23 1 4 23 15th digit is a service code and may be A Z ...

Page 7: ...he furnace and cased coil in the horizontal position See Figure 4 IMPORTANT The cased coil must be placed downstream of the furnace In horizontal installations the apex of the coil may point either toward or away from the furnace See the coil Installer s Guide for more details The cased coil is secured to the furnace and both the furnace and the cased coil must be properly supported If used the br...

Page 8: ... provisions of the local building codes Special conditions created by mechanical exhausting of air and fireplaces must be considered to avoid unsatisfactory furnace operation OUTSIDE AIR IS RECOMMENDED The use of indoor air for most applications is acceptable unless there is the presence of corrosive chemicals or contamination Certain types of installation will require the use of outside air for c...

Page 9: ...t installed in the combined space shall be considered in making this determination Refer to Table 2 for minimum open areas requirements 2 All air from outdoors as in Figure 9 The confined space shall be provided with two permanent openings one commencing within 12 inches of the top and one commencing within 12 inches of the bottom of the enclosure The openings shall communicate directly or by duct...

Page 10: ...upply and return ductwork NOTE Minimum return air temperature is 55 F 2 Refer to Figure 11 and the M95 Outline Drawing for duct connection dimensions for various furnaces 3 The side panels on upflow furnaces include locating notches which may be used as guides for cutting an opening for return air Refer to Figure 11 and the Outline Drawings for duct connection dimensions for specific furnace model...

Page 11: ...ONTAL ALCOVE ATTIC SIDES 0 1 0 BACK 0 3 6 TOP 1 1 1 FRONT 3 3 18 VENT 0 0 0 NOTE CLEARANCE REQUIRED AT TOP OF PLENUM IS 1 RETURN AIR FILTERS Filter and filter rack are not supplied with unit TYPICAL DOWNFLOW FURNACE RETURN AIR FILTER INSTALLATIONS Two high velocity type air filters are required for each downflow furnace Downflow furnaces in the horizontal configuration must have the filters outsid...

Page 12: ...IV furnaces in accordance with the latest edition of ANSI Z21 47 CAN CGA 2 3 Standards Category IV furnaces operate with positive vent pressure and with a vent gas temperature less than 140 F above the dew point These conditions require special venting systems which must be gas tight and water tight NOTE When an existing furnace is removed from a venting system serving other gas appliances the ven...

Page 13: ...g Joints 1 Cut pipe square remove ragged edges and burrs Chamfer end of pipe then clean fitting socket and pipe joint area of all dirt grease moisture or chips 2 After checking pipe and socket for proper fit wipe socket and pipe with cleaner primer Apply a liberal coat of primer to inside surface of socket and outside of pipe DO NOTALLOW PRIMER TO DRYBEFOREAPPLYING CEMENT 3 Apply a thin coat of ce...

Page 14: ...WED 1 The INLET AIR of one pipe systems require the installation of a 90 elbow to prevent dust and debris from falling straight into the furnace and a 2 foot horizontal or vertical straight pipe section connected before or after the elbow 2 DO NOT MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET Except adapters at the top of the furnace If different inlet and vent pipe siz...

Page 15: ...n the total number of elbows If the BAYAIR30AVENTA termination kit is used the equivalent length of pipe is 5 feet There is zero equivalent length for the BAYVENT200B 6 Pipe adapters are field supplied 7 4 pipe may be reduced to 3 for termination with BAYAIR30AVENTA or BAYVENT200B without additional length restriction 8 For Canadian applications Only IPEX 196006 may be used for horizontal and vert...

Page 16: ...nches 30 cm Notes 1 In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code 2 In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwelling and serves both dwellings Permitted only if veranda porch deck or balcony is fully open on a minim...

Page 17: ... inches 15 cm for appliances 10 000 Btuh 3 kw 12 inches 30 cm for appliances 10 000 Btuh 3 kw and 100 000 Btuh 30 kw 36 inches 91 cm for appliances 100 000 Btuh 30 kw 4 feet 1 2 m below or to side of opening 1 foot 300 m above opening K Clearance to a mechanical air supply inlet 6 feet 1 83m 3 feet 91 cm above if within 10 feet 3m horizontally L Clearance above a paved sidewalk or paved driveway l...

Page 18: ...ngle wall stainless steel venting See Figure 30 Shield material to be a minimum of 24 gauge stainless or aluminized sheet metal Minimum dimensions are 12 x12 Shield must be fastened to both inside and outside of wall Use screws or anchor type fasteners suited to the outside or inside wall surfaces NONCOMBUSTIBLE MATERIAL WALL The hole through the wall must be large enough to maintain pitch of vent...

Page 19: ...COUPLING PLASTIC VENTING PVC WALL MOUNT FLANGE OPTIONAL APPROVED TERMINATION CEMENT MORTAR SEAL INSIDE OUTSIDE VENTING THROUGH NON COMBUSTIBLE WALLS Pitch 1 4 Inch Per Foot 12 MINIMUM ABOVE NORMALLY EXPECTED SNOW ACCUMULATION LEVEL 6 IN MIN TO JOINT z For Canadian Applications Only IPEX 196006 IPEX 081216 IPEX 081218 and IPEX 081219 may be used for horizontal vent terminations Maintain 18 in minim...

Page 20: ...ELD SUPPLIED COMBUSTION AIR VENT ELBOW FIELD SUPPLIED VENT 1 1 2 BAYAIR30AVENTA 3 PIPING 2 2 1 2 or 3 PIPING REDUCING COUPLING FIELD SUPPLIED IF NEEDED SEAL ALL WALL CAVITIES BAYVENT200B c For Canadian applications only IPEX 196006 IPEX 081216 IPEX 081218 and IPEX 081219 may be used for horizontal vent terminations CAUTION The vent for this appliance shall not terminate 1 Over public walkways or 2...

Page 21: ...Furnace may be in vertical or horizontal configuration v NOTES A Condensate trap for vent pipe must be a minimum of 6 inches in height B Condensate trap for vent and inlet pipe must be connected into a condensate drain pump an open or vented drain or it can be connected to the outlet hose of the furnace s condensate trap Outdoor draining of the furnace and coil condensate is permissible if allowed...

Page 22: ...all flue pipe and masonry chimney is to be used for another gas appliance venting area must be sufficient to vent that appliance and that appliance must be connected to chimney with separate entry openings IMPORTANT The single wall flue pipe joints must be sealed The 90 elbow connection to vertical pipe must be sealed to prevent condensate leakage to base of masonry chimney SUPPORT THE SINGLE WALL...

Page 23: ...horizontally vented gas fueled equipment is installed in a crawl space or an attic the hard wired carbon monoxide detector with alarm and battery back up may be installed on the next adjacent floor level b In the event that the requirements of this subdivision can not be met at the time of completion of installation the owner shall have a period of thirty 30 days to comply with the above requireme...

Page 24: ...BTUH UPFLOW MODELS ALL 100 000 BTUH UPFLOW MODELS ALL 120 000 BTUH UPFLOW MODELS AND ALL DOWNFLOW MODELS CPL00938 UPFLOW VERTICAL Right side UPFLOW HORIZONTAL 17 UNITS Left side only Use Inducer Drain hose without extension CONDENSATE DRAIN INSTRUCTIONS VERTICAL APPLICATIONS CAUTION It is recommended that a drain pan be installed under the furnace to prevent property damage or personal injury from...

Page 25: ...e induced blower and reposition into the other drain tap of the inducer which is located 90 clockwise around the inducer Move the cap from that drain tap to the unused drain tap On upflow units plug the hole in the blower deck where the tube went through On upflow units this tube may need to be extended using the tubing shipped with the furnace Connections must be made to an OPEN or VENTED DRAIN O...

Page 26: ...1 STAGE HEATING THERMOSTAT NO COOLING Primary drain vent stack must terminate below secondary heat exchanger condensate drain outlet To drain opening If upflow furnace is installed over a finished ceiling overflow from the primary drain vent stack must flow into an auxillary drain pan to prevent damage to the finished ceiling below Q Evaporator and furnace condensate drain piping may be manifolded...

Page 27: ...permanently live electric circuit It is recommended that furnace be provided with a separate circuit protection device in the electric circuit The furnace must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or CSA C22 1 Electrical Code if an external electrical source is utilized The integrated furnace control...

Page 28: ...TE 4 ISOLATION RELAY SEE NOTE 4 B C B C B C From Dwg 21B341422 Rev 3 TWIN TWIN R1 R1 TWINNING CONNECTION DIAGRAM FOR TWINNING 1 STAGE FURNACES WITH SINGLE WIRE TWINNING FEATURE 1 STAGE HEAT 1 STAGE COOL THERMOSTAT 1 STAGE HEATING COOLING THERMOSTAT FURNACE NO 1 FURNACE NO 2 BLOWER OPERATION OF UNIT NO 2 IS SYNCRONIZED WITH UNIT NO 1 VIA SIGNALS FROM TWIN CONNECTION SEE NOTE 4 SEE NOTE 5 ISOLATION ...

Page 29: ...MANUAL SHUTOFF VALVE GROUND UNION JOINT DRIP LEG GAS PIPING The upflow horizontal furnace is shipped standard for left side installation of gas piping A knock out is provided on the right side for an alternate gas piping arrangement See Figure 52 The installation of piping shall be in accordance with piping codes and the regulations of the local gas company Pipe joint compound must be resistant to...

Page 30: ...conds clocked 5 Use the following factors if necessary For 1 Cu Ft Dial Gas Flow CFH Chart Flow Reading 2 For 1 2 Cu Ft Dial Gas Flow CFH Chart Flow Reading 4 For 5 Cu Ft Dial Gas Flow CFH 10X Chart Flow Reading 4 6 Multiply the final figure by the heating value of the gas obtained from the utility company and compare to the nameplate rating This must not exceed the nameplate rating Gas Valve Adju...

Page 31: ... C M951P110DD60AA 4 5 W C 11 0 W C 4 Turn on system power and energize valve 5 Adjust gas heat by removing the adjustment regulator cover screw a To increase outlet pressure turn the regulator adjust screw clockwise b To decrease outlet pressure turn the regulator adjust screw counterclockwise c Adjust regulator until pressure shown on manometer matches the pressure specified in Table 17 1 The inp...

Page 32: ...ode ANSI Z223 1 NFPA 54 or National Standard of Canada Natural Gas and Propane Installation Code CSA 149 1 Installation of this furnace at altitudes above 2 000 ft 610m shall be made in accordance with the listed high Altitude Conversion Kit available with this furnace IMPORTANT Re install the propane orifices to the same depth as the orifices supplied with the equipment GAS FLOW IN CUBIC FEET PER...

Page 33: ...lure to follow the installation instructions for the venting system being placed into operation could result in carbon monoxide poisoning or death START UP AND ADJUSTMENT PRELIMINARY INSPECTIONS With gas and electrical power OFF 1 Duct connections are properly sealed 2 Filters are in place 3 Venting is properly assembled 4 Blower door is in place Flip the switch on main gas valve within the unit t...

Page 34: ...osition See Figure 57 and 58 Disconnect the electrical supply to the unit CAUTION If this is done during the cold weather months provisions must be taken to prevent freeze up of all water pipes and water receptacles Failure to follow this warning could result in property damage Whenever your house is to be vacant arrange to have someone inspect your house for proper temperature This is very import...

Page 35: ...ndensate drain is blocked either by debris improper draining or by freezing condensate the pressure switch will receive a signal warning of the accumulation of condensate in the heat exchanger assembly The pressure switch contacts will open and remain open not allowing unit operation The unit will not operate until the condensate drain has been cleared and the condensate flows freely 7 RESET AFTER...

Page 36: ...s ON Replace IFC Continuous OFF Check Power 2 Flashes System Lockout Retries or Recycles exceeded 3 Flashes Draft Pressure Error Possible problems a Venting problem b Pressure switch problem c Inducer problem 4 Flashes Open High Limit Device 5 Flashes Flame sensed when no flame should be present 6 Flashes 115 Volt AC power reversed or Poor Grounding 7 Flashes Gas valve circuit error 8 Flashes Low ...

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