Nordyne M1B Installation Instructions Manual

Nordyne M1B Installation Instructions Manual

Downflow, direct vent (sealed combustion) forced air gas & oil furnaces
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Downflow, Direct Vent (Sealed Combustion)
Forced Air Gas & Oil Furnaces
Series M1 B, lVllG, M1M & M5S
For installation
in:
, Manufactured
Homes
, Recreational
Vehicles,
Park Models,
&
Manufactured
Buildings
, Modular Homes/Buildings
ATTENTION
INSTALLERS:
It is your responsibility
to know this product
better than your customer.
This includes
being able to install the product according
to strict safety guidelines and instructing the
customer on howtooperate
and maintain the
equipment for the life of the product. Safety
should always be the deciding factor when
installing this product and using common
sense plays an important
role as well. Pay
attention to all safety warnings and any other
special
notes highlighted
in the manual.
Improper installation of the furnace or failure
to follow safety warnings
could
result in
serious injury, death, or property damage.
These instructions
are primarily
intended
to assist qualified
individuals
experienced
in the proper installation
of this appliance.
Some
local
codes
require
licensed
installation/service
personnel
for this type
of equipment.
Please read all instructions
carefully
before
starting
the installation.
Return these instructions to the customer's
package for future reference.
WHATTO
DO IFYOU SMELL GAS
FIRE OR EXPLOSION
HAZARD
• Do not try to light any appliance.
,, Do nottouch
anyelectrical
switch;
do
not use
any
phone
in your
building.
• Leave the building
immediately.
• Immediately
call your gas supplier
from
a neighbors
phone.
Follow
the gas suppliers
instructions.
• If you
cannot
reach
your
gas
supplier,
call the fire department
,, 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.

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Summary of Contents for Nordyne M1B

  • Page 1 Downflow, Direct Vent (Sealed Combustion) Forced Air Gas & Oil Furnaces For installation Series M1 B, lVllG, M1M & M5S , Manufactured Homes , Recreational Vehicles, Park Models, & Manufactured Buildings , Modular Homes/Buildings ATTENTION INSTALLERS: It is your responsibility to know this product better than your customer.
  • Page 2: Table Of Contents

    Lighting instructions - Pilot Models ..20 Fig. 44 - Gas Only (M1M Models) ..38 How to Shut Off Gas - Pilot Models ..21 Fig. 45 - Gas & Oil (M1B & M5S) ..39 Operating Instructions - Direct Ignition ...21 Installation Checklist ........
  • Page 3: Safety Information

    SAFETY INFORMATION WARNING: Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and should not be ignored. Do not use this appliance if any WARNING indicates a potentially hazardous part has been submerged under situation that if not avoided,...
  • Page 4 a.) A carbonmonoxide (CO)detectorand copy of the installation instructions shall alarmshall be placedon each floor remain with the appliance or equipment levelwhere there are bedrooms. The at the completion of the installation. detectorshall complywith NFPA720 The information listed below is for reference (2005Edition)andbe mountedin the purposes only and does not necessarily have...
  • Page 5: General Information

    A warranty certificate with full details is included fully Iouvered closet door may be used. See with these instructions. However, NORDYNE Circulating Air Requirements (page 7). will not be responsible for any costs found necessary to correct problems due to improper...
  • Page 6: Applications

    Figure 2. Closet Installation , Furnace may be installed on combustible flooring when using NORDYNE Duct Connectors. See pages 9 & 10. ------_ Provide min. 250 6" (152 mm) sq. in. (1613 cm 2) Top Clearance -_._/...
  • Page 7: Circulating Air Requirements

    !ouver area to ob- , The return air opening into the closet shall not tain necessary airflow. Use NORDYNE's be less than specified in the appliance's listing. certiduct program to determine proper duct , The cross-sectional area of the return duct size for A/C.
  • Page 8: Furnace Installation

    6. Measure and drill gas hole. and cut out for cooling , M1/M5 models must be installed with the Nordyne coil (if applicable). See Figures 6 or 7 (page 9). A/C coil box which are listed according to the cabinet size of the furnace: "B"...
  • Page 9: Standard Duct Connector Installation

    ± 14 1/2"_ 2 3/4" _J_/_ FLOOR OPENING !._' 201" "X" _,/,I FLOOR CAVITY Figure 9. Floor Cavity Duct Connector if Floor Cavity Type & Part Number "X" is: 1 3/4" Standard Duct Round Duct CUT-OUTFOR 901987A 904008 ¢'- OPTIONAL ¢_ 7/8"/(22) 901988A...
  • Page 10: Alternate Attachment Method

    Duct connector tabs Staples or sheet metal screws ,/ \, F"arrowq I Duct j BEND TABS TIGHTLY hConnector_ AGAINST SUPPLY AIR DUCT Sheetscrewsmetal_ _-_ _ Figure 10. Duct Connector Tabs Figure 12. Narrow Ducts Alternate Attachment Method Round Duct Connector Installation The standard duct connector...
  • Page 11: Roof Jack Installation

    3/12 to 5/12. See Figure 18. Stainless steel roof jacks are available. M1/M5 furnaces may be used with roof jacks as tall as 170" (except M1M 056 & M1B 066 models, which are limited to 120"). An internal roof jack extension (p/n 901935 - 10", p/n...
  • Page 12: Locating & Cutting Roof Openings

    7" (HUD snowload zones) use an external roof jack extension (p/n 901937). Extensions are optional accessories and may be / CUT-OUT purchased through your NORDYNE distributor. FLUE AND ¢'- ROOF JACK Locating and Cutting Roof & Ceiling Openings...
  • Page 13: Installing The Roof Jack

    Installing The Roof Jack Secure roof jack with 1. Apply caulking compound on underside of roof appropriate fasteners flashing to form a continuous strip at least 3/8" after connecting to furnace wide around the underside of the perimeter of the flashing. See Figures 20 or 21. 2.
  • Page 14: Electrical Information

    4.The four warning tags supplied must be ELECTRICAL INFORMATION installed asfollows: To weather cap WARNING: . Tofuel line connection point (Gas) orfurnace burner (Oil) To avoid electric shock, personal To furnace flame observation door (Gas or injury, or death, turn off the electric oil) .
  • Page 15: Connecting Power Supply Wires

    Connecting Power Supply Wires Verifying Anticipator Setting After the furnace is installed, check the thermostat 1. Remove the furnace control panel cover. 2. Route wires (115 VAC) through the strain anticipator against the nominal setting of 0.4. relief on the left side of the furnace control box 1.
  • Page 16: Fuel Supply And Piping

    FUEL SUPPLY AND PiPiNG Fuel line installations other than typical installations shown in Figures 26 and 27 (page 17) must comply with the fuel piping WARNING: provisions stated in the Federal Manufactured Home Standard (H.U.D. TITLE 24, PART 280) All piping must conform with local and the National Fuel Gas Code (ANSI-Z223.1/ building codes, or in the absence...
  • Page 17: Oil Tank & Piping Istallation

    ForL.Rgas,pressure tothe gasvalvemustbe One Line System morethan11"W.C.butnotmorethan13"W.C. The one line system is highly recommended Pressure isreduced to 10"W.C. b ythepressure where vertical lift, from bottom of tank to pump, regulator i nthe gasvalve. is less than eight feet (Figure 27). A single line hookup has the advantage of lower cost and CAUTION:...
  • Page 18: Leakcheck

    5.Open thefurnace doorandconnect t heoilline to a dedicatedpump prime mode,during tothe intakeportonthe pump. T ighten other which themotor, i gniter a ndvalve arepowered portplugsonthe pump. N OTE: V erifythe oil for 4 minutes. T he yellowLED will be on. lineis airtight!Air leakscancausethepump NOTE:If primeis notestablished d uringthe to loseprimeandwill createotherproblems fourminutepumpprimemode, r epeatstep3...
  • Page 19: High Altitude Conversion

    CGA B149.1. Please consult your local code authority. Flue Gas Sampling WARNING: It may be necessary to take flue gas sampling from oil and gas furnaces (M5S and M1B Series Models) in order to check the performance after The reduction of input rating nec= furnace installation.
  • Page 20: Startup & Adjustments

    STARTUP AND ADJUSTMENTS Lighting Instructions- Standing Pilot Models. 1. Set the thermostat to the lowest setting. PLEASE READ ALL SAFETY iNFORMATION 2. Turn off all electric power to the appliance. BEFORE LIGHTING THE FURNACE 3. Remove the furnace door. 4. Push in and move the gas control lever to the OFF positon (Figure 30).
  • Page 21: How To Shut Off Gas - Pilot Models

    12.Setthethermostat mode toHEAT oradesired 1. Set the thermostat to the lowest setting. temperature s ettingandthenON. 2. Turn off all electric power to the appliance. 3. Remove the furnace door and turn off the gas valve: WARNING: . Honeywell: push in and turn the gas control knob clockwise to OFF (Figure 32) Close the hinged fire door.
  • Page 22: How To Shut Off Gas - Direct Ignition

    How to Shut Off Gas - Direct Ignition 7. Turn electric power to the appliance 8. Set the thermostat to H EAT and/or the desired 1. Set the thermostat to the lowest setting. 2.Turn off all electric power to the appliance temperature setting.
  • Page 23: Combustionair

    CombustionAir The Smoke should be NO. 0 on the Bacharach Inorderforthe flameto burnefficiently, it must Scale, and 0 to 0.02 negative draft over fire. receiveadequate combustion air.The amount Electrode Setting (Oil Gun Only) of combustion air required variesaccording to Poor ignition of the oil spray may result if the altitude,actualB.T.U.
  • Page 24: Operating Sequence

    OPERATING SEQUENCE Oil Gun Furnace with Honeywell R7184 / Beckett 7505 Control - M5S Models Standing Pilot 1. When a call for heat is initiated, there is a 2 1 On a caJl for heat, the thermostat contacts to 6 second delay while the control performs close, supplying 24 VAC to the gas vaJve.When a safe start check.
  • Page 25: Furnace Controls & Functions

    The valve is a "step-open" type for M1G models and "slow-open" for M1M and M1B models which means it opens to a low-fire position, and after a few seconds, "steps- open" to high-fire.
  • Page 26: Troubleshooting

    7. Check for a defective transformer or blown fuse. Direct ignition Furnaces including Gas Gun 8. Check electrical circuit for proper grounding, M1B Series (see Table 9, page 29) polarity, make sure electrical connections are tight. Burner Motor won't Run - T-stat Calls for Heat 9.
  • Page 27: Oil Gun Models

    120 VAC Is Available At AMP Plug_:___l nitor Circulation Air Blower Will Not Operate Even Does Not Heat Up Though The Burner Does Operate , Check thermostat G connection. 1. Disconnect power to the furnace. 2. Disconnect AMP plug to the ignitor, and check , Check wiring to motor.
  • Page 28: Optional Accessories

    Burner will not start and the LED indicator is (NORDYNE p/n 901996 for furnaces without coil cavity, or p/n 901083 with coil cavity). See Figure flashing at 2 seconds...
  • Page 29 Control Module Status Indicators - M1M Series Red LED Indicator 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...
  • Page 30: Maintenance

    Split system unit with vertical discharge for quiet Additional Oil Furnace Maintenance operation connects with NORDYNE cooling coil In addition to the preceding, the following should furnace (optional coil cavity required with "A" be performed by a qualified service contractor model furnaces).
  • Page 31 ilmmlmmwilml_llilmmmmwilml mmllmlmillml____ Furnace Input Output Orifice No E.S.P, Pilot Ignitor Comb. Motor A/C Ready Model No MBtu/h MBtu/h Nat. InWC Burner Direct Blower Tons M1GB 056 M1GB 070 M1GB 077 M1GB 090 M1MB 056 M1MC 056 M1MB 070 M1MC 070 M1MB 077 M1MC 077 M1MB 090...
  • Page 32 M1G - 090 Orifice Size - LP Out_)ut-MBTUH 69.7 64.2 61.7 59.2 56.8 54.6 52.4 50.3 48.3 46.3 Orifice Size - Nat. Gas M1B - 066 Orifice Size - LP Output-MBTUH 52.6 48.5 46.6 44.7 42.9 41.2 39.6 38.0 36.5 35.0 Orifice Size - Nat. Gas...
  • Page 33: Gas Information

    iNFORMATiON CUBIC FEET PER CUBIC FEET PER TiME FOR TiME FOR REVOLUTION REVOLUTION ONE REVOLUTION ONE REVOLUTION OF GAS METER OF GAS METER (SECONDS) (SECONDS) 1,800 3,600 1;500 3,000 ..12,86 2,571 1,125 2,250 1,000 2,000 " 11800 1,636 " 11500 1,385 ..
  • Page 34: Wiring Diagrams

    NOTES I. Incoming power must be polarized. Observe color coding. (See furnace data label for AUX. LIMIT electrical information.) 2. If any of the original wires (as supplied with _i _i ® ..the appliance) must be replaced, use I05_C Thermoplastic type wire or its equivalent.
  • Page 35 NOTES 1. Incoming power must be polarized. Observe color coding. (See furnace data label 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. BLUE CONNECTOR JIIIIIIIll...
  • Page 36 NOTES \MG{ BLC FoRjWER 1. Incoming power must be polarized. Observe color HEATING/ .._\ AUX. LIMIT coding. (See furnace data label for electrical COOLING _"l_ information.) _1_£1 _J_ _ .... 2. If any of the original wires (as supplied with the BLUE appliance) must...
  • Page 37 HEATING/COOLING NOTES 1. Incoming power must be polarized. Observe color coding. (See furnace AUX. LIMIT data label for electrical information.) 2. If any of the original wires (as supplied with the appliance) must be replaced, BLUE use 105°C Thermoplastic type wire or its equivalent.
  • Page 38 NOTES 1, Incoming power must be polarized, Observe color AUX. LIMIT 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 BLUE type wire or its equivalent. CONNECTOR HOUSING CAP Blower...
  • Page 39 M1B & M5S Furnace Series 120 Volt Single Phase/60 NOTES: I. Incoming power must be polarized. Observe color coding. 4. A/C Heating Speeds: Refer to Table 11, A/C Blower Selection (See furnace data label for electrical information.) 5. If any of the original...
  • Page 40: Installation Checklist

    Vent free from restrictions? Filter(s) secured in place? Filter(s) clean? Flue connections tight? Is there roer draft? III IIIllllllllllllliil Ill II! NORDYNE 709123A (Replaces 7091230) Specifications & illustrations COMPL_E COMFORT.GENUINE VALUE, subject to change without notice or incurring obligations. O'Fallon 709123A Printed in U.S.A.

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