Downflow, Direct Vent (Sealed Combustion) Forced Air Gas & Oil Furnaces Installation Instructions 1 Series For installation in: M1 B, MiG, M1 M & M5S e Manufactured « Recreational Homes Vehicles, Park Models, & Manufactured Buildings « Modular Homes/Buildings ATTENTION INSTALLERS: Itis your responsibility to know this product better than your customer.
SAFETY INFORMATION ......ccccccetneeenesenenene 3 REQUIREMENTS & CODES ........... eee 3 GENERAL INFORMATION .............2:ceeeerees Warranty Information .............ccccccccceeeeees Minimum Clearances oo... eee Applications oo... ..ccccccccccceccccssssseeeeeceeeneees Unit Location 20.0... ceceeecceeeeeeteeereenteees 5 5 5 6 6 CIRCULATING AIR REQUIREMENTS ......... 7 Return Air Connections... 7 Supply Air Connections ........ccecceeeees 7 FURNACE INSTALLATION ............
SAFETY INFORMATION Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and should not be ignored. WARNING indicates a potentially hazardous situation that if not avoided, could result in personal injury or death. CAUTION indicates a potentially hazardous situation that if not avoided, may result in minor or moderate injury or property damage. /A\ WARNING: The safety information listed below must be followed during the installation, service, an
a.) b.) c.) d.) A carbon monoxide (CO) detector and alarm shall be placed on each floor level where there are bedrooms. The detector shall comply with NFPA 720 (2005 Edition) and be mounted in the living area outside the bedroom(s). A (CO) detector shall be located in the room that houses the appliance or equipment and shall: « Be powered by the same electrical circuit as the appliance or equipment.
« American National Standard (ANSI-119.2/ NFPA-501C) for all recreational vehicle installations. « CANADA: CAN/CGA-B149.1 and .2—-M00 National Standard of Canada. (NSCNGPIC) GENERAL INFORMATION Manufacturer Warranty - Owner’s Responsibilities It is the sole responsibility of the homeowner to make certain the gas furnace has been correctly set up and converted to the proper fuel (L.P. gas or Natural gas) and adjusted to operate properly.
Applications Mi Series gas and M5 Series oil furnaces are listed direct vent (sealed combustion), downflow heating appliances for manufactured (mobile) z 6" (152 mm Top Clearance homes, BUI WK ' I [ ' I I ' I I qed”. 487 mp ~m ) Wall or Partition ea I Nearest \ AN\ ANY | | Removable access panel should be installed above furnace door frame to access roof jack Qi Clearance to Furnace Cabinet recreational vehicles, and for use in residential/modular/commercial construction.
CIRCULATING AIR REQUIREMENTS /\ CAUTION: /\ WARNING: HAZARD OF ASPHYXIATION: Do not Do notallow combustion products to enter the circulating air supply. Failure to prevent the circulation of combustion products into the living space can create potentially hazardous conditions including carbon monoxide poisoning that could result in personal injury or death. All return ductwork must be secured to the furnace with sheet metal screws.
Location, size, and number of registers should be selected on the basis of best air distribution and floor plan of the home. The supply air must be delivered to the heated space by duci(s) secured to the furnace casing, running full size and without interruption. Three typical distribution systems are shown in Figure 5. The location, size, and number of registers should be selected on the basis of best air distribution and floor plan of the home.
50" | k—— 14 1/2"——+ <2 3/4" 7 x REAR WALL OF CLOSET OR ALCOVE 73-5 ¢ T Sp 2 1/4" 1 eb z ~~ = Qe JA3 838 te Nea 0 N fF I SUTOUTFOR 13/4" ENTRY 14" Dia \ 1 7/8"— 2 7/8" INE eureR” POOR Figure 6. Cut-Out Dimensions for Standard Duct Connectors 20" g $4 LZ . Cavit o"—_ “sy > REAR WALL OF CLOSET OR ALCOVE 373 ¢ 2 2 stot Es s52 aa 5 ° 8 $ y me = Duct Connector y ‘ OPTIONAL coOLINe COL ole! 3/4" | y4 nreumumeS Sao ws 3/4" » e ny 13/4" re SUPPLY AIR DUCT .
Duct connector tabs Staples or sheet metal screws DUCT CONNECTOR SUPPLY AIR DUCT BEND TABS TIGHTLY AGAINST SUPPLY AIR DUCT tabs, this alternate attachment method may be used. 1.Score and cut the top of the supply air duct as indicated in Option 1 or Option 2 (Figure 11). With Option 1 choice, cut out the metal from the shaded area. 2. Fold the two flaps (Options 1 or 2) up to form the opening for the duct connector. 3.
ROOF JACK INSTALLATION SCREWS MOUNTING PLATE DUCT CONNECTOR y 14" suppiyCONNECTION Figure 13. Round Duct Connector Installed SLIDE FURNACE ALL THE WAY BACK ONTO MTG. PLATE eel “SECURE FURNACE ‘WITH 2 FASTENERS AT FRONT CORNER HOLES ‘ | ie ' 5 Required ceiling and roof cut-out openings Figure 11) must be carefully located to misalignment of the furnace and Roof Note: Install only Roof Jack Assemblies in Table 4 on this heating appliance. (see avoid Jack. listed Roof Jack Selection 1.
ROOF JACK pi My PITCHED ROOF = SLANT DECK FLASHING /. Leteeteieneleceny = CEILING* CAVITY "X" (SEE TABLE 6) see a | CEILING \. ROOF OPENING “CEILING OPENING Figure 17. Example of Flat Jack with Flashing 1. Locate center of Roof Jack opening, measure 13 1/2” from the rear wail of closet or alcove along the center line of furnace and floor opening. See Figure 19. 2. Cut ceiling and roof holes as follows: * Ceiling = 8 3/4” (222 mm) diameter * Roof = 9 3/8” (238 mm) diameter /\ IMPORTANT: Refer to
Installing The Roof Jack 1. Apply caulking compound on underside of roof flashing to form a continuous strip at least 3/8” wide around the underside of the perimeter of the flashing. See Figures 20 or 21. 2.Connect Roof Jack Assembly to the furnace. Inserttelescoping Roof Jack Assembly through the opening cut on the roof. 3. Connect flue pipe to flue collar of furnace. See Figure 22.
4.The four warning tags supplied must be installed as follows: * To weather cap ¢ Tofuelline connection point (Gas) or furnace burner (Oil) ¢ To furnace flame observation door (Gas or Oil) « To furnace wall thermostat 5. Transit-mode weather cap to be removed and upper Roof Jack crown installed (See Figure 24). Do Not Discard screws. 6. Place upper Roof Jack (crown) on to the flue pipe assembly. NOTE: Make sure inside flue pipe attaches over inner flue pipe and outer Roof Jack pipe fits over outer pipe. 7.
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 control box (see Figure 24). 3. Connect the hot wire to the black pigtail lead, and the neutral wire to the white pigtail lead. Secure all connections with suitable wire nuts. 4.Connect the ground wire to the grounding screw. 5. Reinstall the control panel cover and secure with the original mounting screws.
FUEL SUPPLY AND PIPING /A\ WARNING: All piping must conform with local building codes, or in the absence of local codes, with the most recent edition of the National Fuel Gas Code ANSI 2223.1 or (CAN/CGA B149.1 or .2). Failure to follow all safety warnings could result in serious injury, death or property damage. This furnace may be installed with left or right side gas entry.
For L.P. gas, pressure to the gas valve must be more than 11” W.C. but not more than 13” W.C. Pressure is reduced to 10” W.C. by the pressure regulator in the gas valve. /\\ CAUTION: ordinances, H.U.D. Home and Safety Standards or National Manufactured Fire Protection Association must be satisfied, where they apply, for an approved installation. Use atank capacity suitable for the application with a weatherproof, capped fill opening and a shielded vent to let in air as fuel is used.
5. Open the furnace to the intake port port plugs on the line is airtight! Air to lose prime and door and connect the oil line on the pump. Tighten other pump. NOTE: Verify the oil leaks can cause the pump will create other problems such as nozzle failure, odors, rumbling noise, to a dedicated pump prime mode, during which the motor, igniter and valve are powered for 4 minutes. The yellow LED will be on.
6. For Honeywell gas valves with the regulator converter (Figure 28, page 19): a. Unscrew the pressure regulator cap and check for the letters NAT or LP. b. Invert the cap and tighten until snug. 7. For Robertshaw gas valves with the regulator converter (Figure 29): a. Remove the black cover and unscrew the converter located on top of the gas valve. b. Invert the converter: for LP the red ring will be located atthe bottom andthe LP stamping on the converter will appear right side up. c.
STARTUP AND ADJUSTMENTS PLEASE READ ALL SAFETY INFORMATION BEFORE LIGHTING THE FURNACE A WARNING: FIRE OR EXPLOSION WHAT TO DO HAZARD 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 aneighbors phone. Followthe gas suppliers instructions. e If you cannot reach your gas supplier, call the fire department. /A\ WARNING: Before placing the furnace i
12. Setthe thermostat mode to HEAT or adesired temperature setting and then ON. /\ 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 asphyxiation. in possible 1.Set the thermostat to the lowest setting. 2. Turn off all electric power to the appliance. 3.
How to Shut Off Gas - Direct Ignition 1. Set the thermostat to the lowest setting. 2. Turn off all electric power to the appliance before servicing unit. 3. Set the furnace On-Off Switch to OFF. * Honeywell (Figure 32):Turn gas control knob clockwise to OFF, Robertshaw (Figure 33): Push the gas control lever to OFF. « For oil, shut off all valves. 4. Replace the furnace coor.
Combustion Air In order for the flame to burn efficiently, it must receive adequate combustion air. The amount of combustion air required varies according to altitude, actual B.T.U. content of the fuel, gas pressure, conversion to another gas and other factors. The burner flame should be observed and any necessary adjustments made before the furnace is placed into service. See Table 7 for Factory Air settings. /\. CAUTION: eCombustion air adjustment must be made only by a qualified technician.
OPERATING SEQUENCE Oil Gun with Honeywell R7184 / contacts close, supplying 24 VAC to the gas vaive.When energized, the valve steps open at a reduced flow and opens fully within 14 seconds. 2. The ignition and motor are turned on and a Standing Pilot 1 On a call for heat, 2.When the call for the thermostat heat is satisfied, the thermostat contacts open, shutting off gas flow. Standing Pilot w/induced Draft Blowers 1.
4.When call for heat is satisfied, the thermostat contacts open and the gas valve shuts off gas flow. /A\ 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 ou case de température excessive, sail est impossible de cooper Palimentation en gaz, fermer le robinet manuel d’alimentation en gaz du générateur d’sir chaud avant de cooper l’alimentation électrique.
TROUBLESHOOTING Standing Pilot Models Main Burner Does Not Ignite 1. Check the electrical supply to the furnace. 2. Verify the furnace furnace On-Off switch is in the ON position. 3. Check for proper thermostat operation. 4. Check for broken or open thermostat wires. 5. Verify the insulation located on the inside of the front panel is glued securely around the fan switch and the limit switch. 6. Shut off the electrical supply to the furnace and remove the electrical box cover. 7.
120 VAC Is Available At AMP Plug - Ignitor Does Not Heat Up 1. Disconnect power to the furnace. 2. Disconnect AMP plug to the ignitor, and check ignitor resistance with an ohm meter. Set on RX71 scale. « Normal reading should be 40 - 75 ohms. ¢ |f above or below this rating at room temperature change ignitor. 3. Check for continuity from ignitor receptacle to burner. Main Flame ignites - Burner Locks Out * Ignition control is not properly grounded. ¢ Defective ignition control.
the cad cell is operational, replace the primary control. 4.If the LED continues to flash at the listed above, verify that the control restricted mode. If in restricted mode, lf not in restricted mode, replace the interval is not in reset it. control. 5.1f the (LED indicator for R7184 control; green LED for 7505 control) stays off while the flame is on, check the cad cell sighting for view of the flame. 6.If the burner locks out, check the cad cell resistance. (See Table 8) 7.
Control Module Status Indicators - MiM Red LED Indicator Series Status Steady ON Control OK Steady OFF No power Rapid flash False flame or internal control fault One flash Limit switch is open Two flashes Pressure switch is open Three flashes Pressure switch is stuck closed Four flashes Lockout due to failed 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.
OPTIONAL ADD-ON AIR CONDITIONING Whether split system or single package, an energy-saving NORDYNE Air Conditioner is available that has been designed specifically for manufactured housing applications and can best handle your home comfort needs. Ask your dealer or contractor about NORDYNE add-on central air conditioning systems. Single package unit includes cooling coils, compressor, and vertical discharge fan.
Nat. LP Tons Spray Angle: 80° A Electrical Supply - 120 volts, GOHZ, 1 Ph. Fuse or Breaker - 15 amps Temperature Rise - 45° F to 75° F e Thermostat Circuit - 24 volts, GOHZ, 30 vac ¢ Normal Anticipator Setting - 0.4 «Manifold Pressure - Natural Gas: 3.5” w.c. LP Gas: 10” w.c.
FURNACE MODEL OUTPUT MIM/MIG 056 Orifice Orifice Qutput Orifice Orifice Qutput Orifice Orifice Output Orifice Orifice Output Orifice Orifice Qutput Orifice Orifice Output Orifice Orifice Output Orifice Orifice Quiput MIM/MIG 070 M1iM - 077] MiG - 077| MiM - 090} MiG - 090} ALTITUDE - FEET ORIFICE SIZE AND MiB - 066) MiB - 086] CAPACITY Size - Nat. Size - LP - MBTUH Size - Nat. Size - LP - MBTUH Size - Nat. Size - LP - MBTUH Size - Nat. Size - LP - MBTUH Size - Nat.
GAS INFORMATION ONE tweron | SURCTEETER REVOLUTION (SECONDS) ONE OF GAS METER 1 5 10 rwe ron | UBCEEETEER REVOLUTION (SECONDS) 1 OF GAS METER 5 10 10 360 1,800 | 3,600 66 55 273 545 12 14 is 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 300 257 225 200 180 164 150 138 129 120 113 106 400 95 90 86 82 78 75 f2 69 67 64 62 60 58 56 7,500.
ve WIRING DIAGRAM Gas Atmospheric Furnaces, M1GH 056, 070 AUX. LIMIT . If any of the original wires (as supplied with the appliance) must be replaced, use 105°C Thermoplastic type wire or its equivalent. ON/OFF p— SWITCH TH coBEA) CONNECTOR HOUSING CAP -——J FOR OPTIONAL ACCESSORY KITS LULL BLACK SINVESVIC ONIBIM S[@poy 020 ‘9S0 HO LW ‘eoeuing oeydsouly sed ‘op einbi4 NOTES 1. Incoming power must be polarized. Observe color coding. (See furnace data label for electrical information.
Standing Pilot With Induced Draft Furnaces, S[@POIN 060 ‘220 HD LIN ‘eoeUINy yesG peonpuy YUM jO}Ig Bulpuels ‘Lp einBi4 WIRING DIAGRAM 077, 090 Models. NOTES 1. Incoming power must be polarized. Observe color coding. (See furnace data label for electrical information.) AUX. LIMIT . If any of the original wires (as supplied with the appliance) must be replaced, use 105°C Thermoplastic type wire or its equivalent.
9€ S|apol 020 ‘9S0 ADL ‘Apeey o/y ‘eoeuing sleydsowny sed ‘zy ainBi4 WIRING DIAG Gas Atmospheric Furnaces, A/C Ready, M1G (B, C, D) 056, 070 Models RAM NOTES 1. Incoming power must be polarized. Observe color coding. (See furnace data label for electrical information.) COOLING AUX. LIMIT BLUE 2. If any of the original wires (as supplied with the appliance) must be replaced, use 105°C Thermoplastic type wire or its equivalent. 7 { CONNECTOR ON/OFF SWITCH : \ wW = e Li }2} s]4 1516) HEATING/C
RAM HEATING/COOLING HEATING! COOLING HOUSING CAP —P_f} ON/OFF SWITCH x aa)STE] & b> TOTO THE WIRE | RED BLACK WHITE, \ i BLUE RED* AIG NEUTRAL HI-LIMIT FAN BLACK zi SWITCH BLACK COMBUSTION ORANGE mot La « GRAY | GRAY BLACK i GRAY ESS 3A FUSE a SUPPLIED BY INSTALLE 8 f COMBUSTION ha - 4° BLOWER 72052 RELAY ql 9 a Pe BLUE BLUE 4 7 x S5s3} FAN CONNECTOR HOUSING GREEN 4° [= Fs et BLOWER RELAY PRESSURE SWITCH ORANGE _ BLACK WHITE BLACK GRAY BLUE 5 l LEGENDS 11
BE Gas Direct Ignition Furnace, Heating & A/C Ready, M1M All Models. SI@POW WHI Iv - Apeey o/y 9 Buneey ‘eoeusny uonub] joo sed “yp eunbig WIRING DIAGRAM NOTES 1. Incoming power must be polarized. Observe color coding. (See furnace data label for electrical information.) AUX, LIMIT ©< 2. If any of the original wires (as supplied with the appliance) must be replaced, use 105°C Thermoplastic type wire or its equivalent.
WIRING DIAGRAM 6€ 120 Volt & M5S Furnace Series NOTES: 1. Incoming power must be polarized. Observe color coding. {See furnace data label for electrical information.) 2. If any of the original wires (as supplied with the appliance) must be replaced, use 105°C Thermoplastic type wire or its equivalent. 3. On medels M1{B,S)A and M1{B,S)086 jumper wire is installed. On all other models, cooling speed is connected to black wire. Single Phase / 60 Hz 4.
INSTALLATION / PERFORMANCE CHECK LIST INSTALLER NAME: cry.
