Nordyne SERIES M1B, AND M5S Furnace Installation, General Information, Requirements and Codes

Page 8

Location, size, and number of registers should be selected on the basis of best air distribution and fl oor plan of the home. The supply air must be delivered to the heated space by duct(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 fl oor plan of the home.

A Single trunk duct

B

Dual trunk duct

w/crossover connector

 

Transition duct

C

w/branches

 

Figure 5. Typical Supply Duct System

FURNACE INSTALLATION

NOTE: These Installation procedures are suggested for typical furnace installations. Since all installations are different from each other, the sequence of instructions may differ from the actual installation. Only qualifi ed HVAC technicians should install this furnace.

General Information

•The furnace must be leveled at installation and attached to a properly installed duct system.Do not use the back of the furnace for return air. See page 7 for circulating requirements.

•The furnace must be installed so that all electrical components are protected from water.

•The dimensions of the room or alcove must be able to accommodate the overall size of the furnace and the installation clearances listed in Table 1 and Figure 3 (page 6)

•The furnace must be installed upstream from a refrigeration system.

•The plenum attached to the A/C coil box and ductwork within 3 ft. of the furnace must be installed so that surfaces are at least 1/4” from combustible construction.

•The cabinet plug must always be used to close the hole in the side of the furnace when rotating the inducer.

•M1/M5 models must be installed with the Nordyne A/C coil box which are listed according to the cabinet size of the furnace: “B” cabinet - 920169, “C”cabinet - 920171, and “D”cabinet - 920172.

•The M1 Series gas and M5 Series oil furnace is certified for use on wood flooring or supports, but must be installed on top of a duct connector. This factory supplied accessory must be installed in the fl oor cavity and attached to the supply air duct before the furnace is installed.

Requirements and Codes

Installer must be familiar with and comply with all codes and regulations applicable to the installation of these heating appliances and related equipment.In the absence of local codes, the installation must be in accordance with the current provisions of one or more of the following standards.

•Federal Manufactured Home Constructions & Safety Standard (H.U.D. Title 24, Part 3280.707[a][2])

•American National Standard (ANSI-119.2/ NFPA-501C) for all recreational vehicle installations.

•American National Standard (ANSI-Z223.1/ NFPA-54) and/or CAN/CSA B149 for all gas- fi red furnace models.

•American National Standard (ANSI-Z95.1/ NFPA-31) and/or CSA B139 for all oil-fi red furnace models.

•American National Standard (ANSI-C1/NFPA- 70) and/or CSA 22.1 Canadian Electric Code Part 1 for all electrical fi eld wiring.

•Units have been researched under standards UL 307A & B, UL727-1999, ANSI Z21.47b/ CSA 2.3b-2008, and CSA B140.10.

Locating and Cutting Duct Openings

Floor cut-outs and fuel line holes must be carefully located 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 mark the centerline of the cut-out on the fl oor.

2.Using the centerline as a starting point, draw the rest of the duct cut-out to the dimensions shown in Figures 6 or 7.

3.Cut out the fl oor opening 1/16” larger than the actual cutout drawn. This will allow some clearance when installing the duct connector.

4.Measure from the top of the fl oor down to the top of the supply air duct to obtain the depth of the fl oor cavity. NOTE: The depth of the fl oor cavity shown as “X” in Figure 9 (page 9) will determine the correct duct connector.

5.Determine which duct connector to use from Table 3 (page 9).

6.Measure and drill gas hole. and cut out for cooling coil (if applicable). See Figures 6 or 7 (page 9).

8

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Installation Instructions For installationStanding Pilot Models Direct Ignition Models Oil Gun Models Homeowner Information Installer Information InformationReturn Air Connections Supply Air Connections Safety Information Requirements and CodesGas Piping and Gas Pipe Pressure Testing General InstallationSafety Combustion and Ventilation AirALL Models Closet Alcove General InformationMinimum Clearances Assembly ApplicationsUnit Location BlowerCirculating AIR Requirements Return Air ConnectionsGas piping is not run in or through the return duct system Supply Air ConnectionsFurnace Installation Determine which duct connector to use fromGeneral Information Requirements and CodesCut-Out Dimensions for Standard Duct Connectors Duct Connector Sizes Standard Duct Connector InstallationDuct Connector Tabs Installing The FurnaceRoof Jack Installation Required ceiling and roof cut-out openings seeRoof Jack Selection Application NotesRoof Jack Series If Roof Pitch is Slant Deck Factor Slant Deck FlashingsInstalling The Roof Jack Installation of Transit-Mode Venting SystemConnect fl ue pipe to fl ue collar of furnace. See Figure Secure fl ashing with appropriate fastenersLine Voltage Wiring Electrical InformationLow Voltage Wiring Wire Heating Heating/CoolingThermostat Wire Gauge Thermostat Length Unit to T’STATFuel Supply and Piping Important NotesOil Tank and Piping Installation Fuel line Hook-UpConversion to Propane LP Gas Leak CheckFuel Oil Type High Altitude Conversion Honeywell Gas ValveLighting Instructions Standing Pilot Models Standing Pilot ValveReplace the furnace door Operating Instructions for Direct Ignition Models M1MPilot Flame Standing Pilot Only Burner AdjustmentsFor oil, shut off all valves Replace the furnace door Combustion Air Factory Combustion Air SettingsElectrode Setting Oil Gun Only Operating Sequence Standing PilotStanding Pilot w/Induced Draft Blowers M1M Models with Direct IgnitionFurnace Controls & Functions Direct Ignition Furnaces Including Gas Gun M1B Series see , TroubleshootingStanding Pilot Models Page Burner will not start and the LED indicator is Optional AccessoriesCad Cell Resistance when Sensing flame Cad cell is operational, replace the primary controlControl Module Status Indicators M1M Series Red LED Indicator StatusControl Module Status Indicator M1B Control Module Status Indicator M5S SeriesMaintenance Installer InformationAdditional Oil Furnace Maintenance Clean or replace the oil fi lter element at the oil tankBurner Direct Blower Tons M1GBM1MC Manifold Pressure Natural Gas 3.5 w.cEquivalent Orifice Sizes for High Altitude Installations Orifi ce Size Nat. Gas Orifi ce Size LPOutput Mbtuh Orifi ce Size Nat. GasGAS Information Gas Flow Rates Cubic Feet per HourWiring Diagrams ModelsM1GH 077, 090 Models Gas Atmospheric M1GB 056, 070 ModelsWiring Diagram Steady OFF No power Blinking Wiring Diagram Installation / Performance Check List Installation Address
Top Page Image Contents