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FIRE oR EXPlosIon HaZaRD

• Failure to follow safety warnings exactly could 

result in serious injury or property damage.

• Installation and service must be performed 

by a qualified installer, service agency or the 
gas supplier.

• 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.

• leave the building immediately.
•  Immediately  call  your  gas  supplier  from  a 

neighbor’s phone. Follow the gas supplier’s 
instructions.

• If you cannot reach your gas supplier, call 

the fire department.

 WaRnInG:

RIsQuE D’IncEnDIE ou D’ EXPlosIon

•  le non-respect des avertissements de sécurité 

pourrait entraîner des blessures graves, la mort 

ou des dommages matériels.

•  l’installation et l’entretien doivent être effectués 

par  un  installateur  qualifié,  un  organisme  de 

service ou le fournisseur de gazstaller, service 

agency or the gas supplier.

•  ne  pas  entreposer  ni  utiliser  de  l’essence  ni 

d’autres vapeurs ou liquides inflammables dans le 

voisinage de cet appareil, ni de tout autre appareil.

QuE FaIRE s’Il Y a unE oDEuR DE GaZ

•  ne pas tenter d’allumer aucun appareil.

•  ne  toucher  à  aucun  interrupteur  électrique; 

n’utiliser aucun téléphone dans le bâtiment.

•  Évacuer l’immeuble immédiatement.

•  appeler immédiatement le fournisseur de gaz en 

employant le téléphone d’un voisin. Respecter à 

la lettre les instructions du fournisseur de gaz.

•  si  personne  ne  répond,  appeler  le  service  des 

incendies.

 aVERtIssEMEnt:

staRtuP & aDJustMEnts

PlEasE REaD all saFEtY InFoRMatIon BEFoRE lIGHtInG tHE FuRnacE

 WaRnInG:

Before placing the furnace in service, it must be 

checked to ensure it is equipped for the type of gas 

being used. the burner flame must be observed 

and adjusted if necessary. Failure to observe this 

caution may result in unsafe operation, explosion 

and/or fire, or asphyxiation. see the Gas supply 

and Combustion Air sections.

• 

the first lighting of the furnace after any home setup 

must be performed by a qualified service technician.

•  BEFORE LIGHTING: Smell all around the furnace for 

gas and next to the floor. Some gas is heavier than air 

and may settle on the floor.

•  Use only your hand to push in the gas control lever. Never 

use tools. If the lever will not push in by hand, don’t try 

to repair it. Force or attempted repair may result in a 

fire or explosion. Call a qualified service technician.

•  Do  not  use  this  furnace  if  any  part  has  been  under 

water. Immediately call a service technician to inspect 

the furnace and to replace any part of the gas valve or 

control system which has been under water.

 WaRnInG:

close the hinged fire door. If door is left open 

or  spring  is  broken  it  may  allow  products  of 

combustion into the living space by the furnace 

blower, resulting in possible asphyxiation.

 WaRnInG:

should overheating occur, or the gas supply fails 

to shut off, shut off the manual gas valve to the 

furnace before shutting off the electrical supply.

 aVERtIssEMEnt:

En case de température excessive, ou sail est 

impossible  de  cooper  l’alimentation  en  gaz, 

fermer le robinet manuel d’alimentation en gaz 

du  générateur  d’sir  chaud  avant  de  cooper 

l’alimentation électrique.

Summary of Contents for M1B Series

Page 1: ...gas suppliers instructions If you cannot reach your gas supplier call the fire department RISQUE D INCENDIE OU D EXPLOSION Le non respect des avertissements de s curit pourrait entra ner des blessure...

Page 2: ...0 Flue Gas Sampling 21 startup adjustments 22 M1M Operating Instructions 23 How to Shut Off Gas Direct Ignition 23 M5S Operating Instructions 23 M1B Operating Instructions 23 How to Shut Off Gas Oil G...

Page 3: ...on of the National Fuel Gas Code NFPA54 ANSIZ223 1 ortheNaturalGasandPropane Installation Code CAN CGA B149 1 CEg n rateurd airchauddoit treinstall conform ment aux instructions du fabricant et aux co...

Page 4: ...equipment where the bottom of the vent terminal and the air intake is installed below four feet above grade the following requirements must be satisfied a Acarbonmonoxide CO detectorandalarmshallbe p...

Page 5: ...the overall size of the furnace and the installation clearances listed in Table 1 and in Figure 4 page 6 Alcove installations minimum 18 clearance at front of furnace shall be provided for future serv...

Page 6: ...t or side wall 2 a fully louvered door may be used CLOSET DOOR 6 152 mm 1 25 mm 0 Side Clearance to Furnace Cabinet or in closet door Figure 2 Closet Installation Figure 1 Alcove Installation Figure 4...

Page 7: ...floor or ceiling registers serving the return air duct system must be at least 235 in2 At least one register should be located where it is not likely to be covered by carpeting boxes and other objects...

Page 8: ...holesmustbecarefullylocated to avoid misalignment of the furnace and vent piping To locate standard ducts see Figure 6 page 9 For round ducts see Figure 7 1 Measure 10 from the rear wall or alcove and...

Page 9: ...quirements for sealing ductwork vary from region to region Consult with local codes for requirements specific to your area Figure 6 FLOOR CUT OUT FOR STANDARD DUCT CONNECTORS C L C L C L 24 23 1 4 21...

Page 10: ...own in Figure 14 page 10 Figure 15 page 11 1 Remove furnace outer door s and bottom fuel line knockout 2 Place furnace onto duct connector and center with floor opening 3 Slideontomountingplate Bottom...

Page 11: ...must be made below the ceiling This furnace must never be connected to a chimney flue servicing a fireplace or other appliance designed to burn solid fuel NOTE If the roof jack crown is covered or blo...

Page 12: ...furnace connections For replacement furnaces be sure the inner flue pipe connects over the furnace vent collar DO NOT use a smaller diameter inner flue pipe which could slide inside the furnace vent...

Page 13: ...Oil Tofurnacewallthermostat 5 Transit mode weather cap to be removed and upper Roof Jack crown installed See Figure 23 Do Not Discard screws 6 PlaceupperRoofJack crown onthefluepipeassembly NOTE Make...

Page 14: ...time Use of copper conductors is recommended Connecting Power Supply Wires 1 Remove the furnace control panel cover 2 Route wires 115 VAC through the strain relief on the left side of the furnace cont...

Page 15: ...onnecting Thermostat Wires 1 Insert 24 volt wires through the plastic grommet just above the control panel 2 Connectthethermostatwirestothefurnacelowvoltage pigtails See Figure 25 3 Connect low voltag...

Page 16: ...M1MC 056 56 000 19 3 4 115 1 60 103 127 8 9 14 20 10 9 18 8 M1MC 070 70 000 19 3 4 115 1 60 103 127 8 9 14 20 10 9 18 8 M1MC 077 77 000 19 3 4 115 1 60 103 127 8 9 14 20 10 9 18 8 M1MC 090 90 000 19...

Page 17: ...y be used for gas supply systems Fuellineinstallationsotherthantypicalinstallations shown in Figure 26 page 18 Figure 27 page 19 must comply with the fuel piping provisions stated in the Federal Manuf...

Page 18: ...e Pressure is reduced to 3 1 2 W C by the pressure regulator in the gas valve The maximum inlet pressure for the valve is 7 W C and the minimum inlet pressure is 4 5 W C For L P gas pressure to the ga...

Page 19: ...A Two Line system should only be used if vertical lift exceeds 8 feet 1 Install the oil feed line as outlined in steps 1 6 below 2 Install the oil pump bypass plug in the bottom return port 3 Route th...

Page 20: ...Direct Ignition Furnaces 1 Follow the instructions How to Shut Off Gas page 23 2 Disconnect the gas pipe union and the electrical wires connected to the gas valve 3 Remove the gas valve assembly a Re...

Page 21: ...nace installation A flue gas sample may be taken from the heat exchanger which is located behind the hole of the top front of blower compartment 1 Turn off all electric power to the appliance 2 Remove...

Page 22: ...i personne ne r pond appeler le service des incendies AVERTISSEMENT startup adjustments PLEASE READ ALL SAFETY INFORMATION BEFORE LIGHTING THE FURNACE WARNING Before placing the furnace in service it...

Page 23: ...st setting 2 Turn off all electric power to the appliance before servicing unit 3 Set the furnace On Off Switch to OFF Honeywell Figure 30 Turn gas control knob clockwise to OFF Robertshaw Figure 31 P...

Page 24: ...trol lever to ON 7 Turn electric power to the appliance ON 8 Set the thermostat to HEAT and or the desired temperature setting The furnace should light in approximately 45 seconds If the appliance wil...

Page 25: ...ergized for a 30 second warm up period After warm up the gas valve opens NOTE The time for ignition is approximately 6 seconds after which the gas valve either remains open if flame is sensed or close...

Page 26: ...to cut the electrical power to the furnace See Figure 33 Limit Control This furnace is protected by two high temperature safety limit switches The auxiliary upper limit switch and the high temperature...

Page 27: ...RX1 scale Normalreadingshouldbe40 75ohms If above or below this rating at room temperature changeignitor 3 Check for continuity from ignitor receptacle to burner Control Module is Powered Ignitor won...

Page 28: ...he igniter terminals and there is no ignition the igniter is likely defective and needs to be replaced 3 If the stops flashing burner turns on but the control locks out again check the cad cell If the...

Page 29: ...ailed ignition Five flashes L1 neutral reversed or L1 voltage not present on L1 Flame Status A Yellow LED labeled Flame is provided to indicate flame status When flame is sensed the flame LED is lit I...

Page 30: ...ceoperation Excessiveiceformationcould restrict the combustion air supply to the burner causing inefficient burner operation If excessive ice has formed on the air inlet or exhaust portions of the roo...

Page 31: ...53 26 43 0 3 x x 1 4 3 M1BC 066 66 53 26 43 0 3 x x 1 2 4 M1BB 086 86 68 18 37 0 3 x x 1 4 3 M1BC 086 86 68 18 37 0 3 x x 1 2 4 M5SB 066 66 56 0 3 50 Gph x Burner Model AF 10 1 4 3 M5SC 066 66 56 0 3...

Page 32: ...ut MBTUH 45 4 41 8 40 1 38 5 37 0 35 5 34 1 32 7 31 4 30 2 M1M 070 Orifice Size Nat Gas 24 25 26 27 27 28 28 29 29 30 Orifice Size LP 42 42 43 43 43 44 44 45 46 47 Output MBTUH 56 7 52 3 50 2 48 2 46...

Page 33: ...44 220 439 84 43 214 429 86 42 209 419 88 41 205 409 90 40 200 400 92 39 196 391 94 38 191 383 96 38 188 375 98 37 184 367 100 36 180 360 102 35 176 353 104 35 173 346 106 34 170 340 108 33 167 333 1...

Page 34: ...BLUE MED HI ORANGE MED LO WHITE RED LO BLACK HIGH BLUE MED HI WHITE 6 5 4 3 2 1 LEGENDS 115V FIELD 115V 24V FIELD 24V BLOWER MOTOR 4 SPEED NOTES 1 Incoming power must be polarized Observe color coding...

Page 35: ...to Table 12 A C Blower Selection 5 If any of the original wire supplied with the appliance is replaced 105 C wire or equivalent 6 Use copper conductors only 7 Flash Codes Refer to Table 9 Control Modu...

Page 36: ...lter s clean YES NO Flue connections tight YES NO Is there proper draft YES NO ATTENTION INSTALLERS Itisyourresponsibilitytoknowthisproductbetterthanyourcustomer This includes being able to install th...

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