Thomas & Betts EEDU manuals
Household Appliance > Furnace
When we buy new device such as Thomas & Betts EEDU we often through away most of the documentation but the warranty.
Very often issues with Thomas & Betts EEDU begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Furnace Thomas & Betts EEDU is responsible for and what options to choose for expected result.
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Thomas & Betts EEDU Warranty
24 pages 1.12 Mb
GENERAL Model EEDU and HEEDUIndoor/Power-Vented Duct Furnaces 2 1. Installation CodesSpecial Installations (Aircraft Hangars/ Garages) HAZARD INTENSITY LEVELS 1. DANGER: 2. WARNING: 3. CAUTION: WARRANTY: Warranty is void if...... 2. Warranty 3 3. DimensionsFigure 1 Front View Side View Rear View D M J A C F E B H 4 4. Uncrating and Preparation5. Location, Clearances, and Combustion AirCAUTION: Do not locate heater where it may be exposed to liquid spray, rain or dripping water. REQUIRED CLEARANCES Front Top Flue Connec tor Sides Bottom Rear 6" 6" 6" 6" 12 " 29" 5 6. Instructions for Reversing Air Flow by Changing Directional Air Baffles in the Heat Exchanger6 6. Instructions for Reversing Air Flow (cont'd)7. Suspending or Mounting the FurnaceFigure 5 - Base Mounted Furnace Suspending the Furnace Figure 4B - Option CK3 Hanger Kit (P/N 57959) with four threaded sockets Mounting the FurnaceFigure 3C - Model HEEDU has only a top rear heat exchanger baffle. A Net Wei ght Siz e 75 100 125 140 170 200 225 250 300 350 400 Lbs 104 104 126 128 150 172 194 216 262 306 328 Figure 4A - Suspending a Single Furnace Free-turning threaded socket (1" pipe) 7 8. Coupling Two, Three, Four or Five Furnaces using Optional Coupling Kits8 9. Gas Piping and Pressures9 10. Venting10 10. Venting (cont'd)Venter Outlet Attachment Requirements (cont'd): o Table 1 : Maxim um Permissible Vent Lengths with St andard V ent P ipe Di amet ers *Reduce the maxim um vent l ength by the amount indicate d for eac h e lbow used.Figure 9 - Vertical Vent Terminal 11 Horizontal Vent Terminal ClearancesFigure 10 - Horizontal Vent Terminal 12 11. Duct ConnectionsRequirements and Suggestions for Connecting and Installing DuctsFigure 12A - Connecting Ductwork to the Furnace Figure 12B - Attachment of Duct to Furnace Size Figure 11 - Duct Connection Dimensions (inches) 13 12. Condensate Drain, Option CS1, for Furnaces Used with Refrigeration SystemsFigure 13 - Condensate Drain, Option CS1 (P/N 31765) Figure 13 - Bypass Duct 13. Duct Furnace Air Flow Requirements 14. Constructing Bypass DuctBypass CFM Directions for Sizing Bypass Duct 14 15. Furnace Blower Connections14. Bypass Duct (cont'd) 15 16. Combustion Air Proving Switch17. Electrical Supply and ConnectionsOperating Sequence Disconnect Switch Control ThermostatFigure - 15 - Field Wiring Connections Line Voltage Connection Tabs Connect Field Wiring in the Electrical BoxRGM Form 421, Mfg No. 150492, Page 17 Two-Stage with Intermittent Spark Pilot System with or without Lockout WARNING: If you turn off the power supply, turn off the gas. See Hazard Levels, page 2.Access to limit switch from "outside" the furnace 17 18. Limit Switch18 19. Fan Control (Optional, Field Installed)WARNING: If you turn off the power supply, turn off the gas. See Hazard Levels, page 2. Figure 17 - Installation of Optional Fan Control Kit, Option CQ1 (P/N 57960) 19 20. Gas Valve21. Optional Two-Stage Operation - Heating Only Application 22. Optional Two-Stage Operation - Makeup Air ApplicationFigure 18 - Ductstat/Sensing Bulb Locations for Furnace with Option AG3 Side Rear Front 20 22. Optional 2-Stage Operation (cont'd)Dial has no temperature markings. Pin on adjustment screw pointing to "B" equals approximately 70oF. 23. Optional Electronic ModulationNote: Requires field-installed fan control. 24. Pilot and Ignition SystemsFigure 19 - Ductstat Control in Option AG3 (Mounted in inverted position) 21 25. Burners and Carryover System26. Burner Air Adjustment 27. Check Installation and Start-Up 22 SERVICE AND MAINTENANCEWARNING: If you turn off the power supply, turn off the gas. See Hazard Levels, page 2.Figure 21 - Pilot Burner Spark Gap 28. Burner Rack Removal Instructions 29. Cleaning Pilot and Main BurnersPilot Pilot System - Burners - Figure 22 -- Vertical Spark Pilot Figure 23 - Pilot Location of burner 3/4" (+ or - 1/32") Burner Rear Support of pilot and sensor NOTE: Use only factory-authorized replacement parts. CAUTION: When cleaning, wearing eye protection is recommended.When re-installing the pilot, be sure to include the pilot hole cover plate. 23 31. VenterMotor (Troubleshooting is continued on page 24.) Venter Relay - 30. Cleaning the Heat ExchangerCAUTION: When cleaning, wearing eye protection is recommended.Outer Surfaces (circulating air side) Inner Surfaces (combustion gas side) - 32. Troubleshooting 24 32. Troubleshooting (cont'd)FOR SERVICE OR REPAIR, FOLLOW THESE STEPS IN ORDER:
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