Nortek MG1 Series - Table of Contents

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TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION ..................... 3
REQUIREMENTS & CODES ..................................... 4
GENERAL INFORMATION ........................................ 6
Minimum Clearances ............................................... 6
Applications ............................................................. 6
Unit Location ............................................................ 6
CIRCULATING AIR REQUIREMENTS ...................... 7
Return Air ................................................................. 7
Supply Air ................................................................ 7
FURNACE INSTALLATION ....................................... 7
General Information ................................................. 9
Locating & Cutting Duct Openings ........................... 9
Standard Duct Connector Installation ...................... 9
Alternate Attachment Method ................................ 10
Round Duct Connector Installation .......................... 10
Installing the Furnace .............................................. 10
ROOF JACK INSTALLATION ................................... 10
Roof Jack Selection ................................................. 10
Locating & Cutting Roof / Ceiling Openings ............ 12
Installing The Roof Jack .......................................... 12
Installing Transit-Mode Venting System
(Before Home is Moved to Site)................................13
Removing the Transit-Mode Venting System
(After home is moved to site)....................................13
ELECTRICAL INFORMATION .................................. 13
Line Voltage Wiring .................................................. 13
Connecting Power Supply Wires ........................... 14
Low Voltage Wiring .................................................. 15
Connecting Thermostat Wires ............................... 15
Verifying Anticipator Setting .................................. 15
Grounding ................................................................ 15
FUEL SUPPLY & PIPING .......................................... 16
Leak Check .............................................................. 17
Flue Gas Sampling .................................................. 18
High Altitude Conversion ......................................... 18
Conversion to Propane (LP) Gas ............................. 19
Atmospheric & Direct Ignition Furnaces ................ 19
Measuring the Supply Gas Pressure..................... 19
Measuring the Manifold Pressure.......................... 19
STARTUP & ADJUSTMENTS ................................... 20
Operating Instructions (Direct Ignition Furnaces) .... 20
How to Shut Off Gas - Direct Ignition Models........ 21
Verifying Input Rate ................................................. 21
Verifying & Adjusting Temperature Rise .................. 21
Burner Adjustments ................................................. 21
Gas Pressure ........................................................ 21
OPERATING SEQUENCE ......................................... 22
Direct Ignition Furnaces ........................................... 22
TROUBLESHOOTING ............................................... 22
FURNACE CONTROLS & FUNCTIONS ................... 24
MAINTENANCE ......................................................... 24
Installer Information ................................................. 24
OPTIONAL ACCESSORIES ...................................... 24
Optional Add-On Air Conditioning ............................ 24
FIGURES & TABLES ................................................. 25
Gas Information ....................................................... 25
Table 9. Gas Flow Rates ....................................... 25
Table 10. Gas Pipe Capacities .............................. 25
Table 11. Natural Gas Heating Values .................. 26
Table 12. High Altitude Deration Chart for
Natural Gas - High Heating Value ......... 26
Table 13. High Altitude Deration Chart for
Natural Gas - Low Heating Value ......... 26
Table 14. High Altitude Deration Chart for
Propane Gas ......................................... 26
Electrical Information ............................................... 27
Figure 32. Nordyne/UTEC Board Wiring
Diagram.. ............................................. 27
Figure 33. Emerson Board Wiring Diagram.. ........ 28
Airflow Data ............................................................. 29
Table 15. Heating Airflow (CFM) & Temperature
Rise (°F) ................................................ 29
Table 16. Cooling Airflow (CFM) ........................... 30
INSTALLATION CHECKLIST .................................... 32