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RGM Form 421, Mfg No. 150492, Page 1
FOR YOUR SAFETY
The use and storage of gasoline or other
flammable vapors and liquids in open
containers in the vicinity of this appliance is
hazardous.
WARNING: Gas-fired appliances are not
designed for use in hazardous atmospheres
containing flammable vapors or combustible
dust, in atmospheres containing chlorinated
or halogenated hydrocarbons, or in
applications with airborne silicone substances.
See Hazard Levels, Page 2.
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.
APPLIES TO: Installation/Operation/Service
INSTALLATION FORM RGM 421 (Version A)
WARNING: Improper installation, adjustment,
alteration, service, or maintenance can cause
property damage, injury or death. Read the
installation, operation, and maintenance
instructions thoroughly before installing or
servicing this equipment.
GENERAL
Installation should be done by a qualified agency in accordance
with the instructions in this manual and in compliance with all
codes and requirements of authorities having jurisdiction. The
instructions in this manual apply to the duct furnace models
shown on the right.
Table of Contents
Paragraph No. Page No.
Installation and Operation ........................ 1-26.......................... 1-20
Check Installation and Start-Up .............. 27 ............................. 21
Service/Maintenance/Troubleshooting ..... 28-33........................ 22-24
Air Flow Requirements ................................. 13
Blower Connections ..................................... 14
Burner Air Adjustment.................................. 21
Burner Rack Removal .................................. 22
Burners .......................................................... 21
Bypass Duct.................................................. 13
Carryover System ......................................... 21
Check Installation and Start-Up................... 21
CHLORINES .................................................. 5
Cleaning Pilot and Main Burners................. 22
Cleaning the Heat Exchanger....................... 23
Clearances ...................................................... 4
Combustion Air ............................................... 4
Combustion Air Proving Switch .................. 15
Condensate Drain, Option CS1.................... 13
Coupling Two, Three, Four or Five
Furnaces ..................................................... 7
Dimensional Data ........................................... 3
Disconnect Switch........................................ 15
Duct Connections ......................................... 12
Operating Sequence ...................................... 16
Optional Ductstat ......................................... 19
Electrical Supply and Connections .............. 15
Optional Electronic Modulation .................. 20
Fan Control (Optional) ................................. 18
Gas Piping and Pressures ............................... 8
GENERAL...................................................... 1
HAZARD INTENSITY LEVELS .................. 2
Installation Codes ........................................... 2
Limit Switch ................................................. 17
MAINTENANCE ......................................... 22
Mounting the Furnace .................................... 6
Pilot and Ignition Systems ........................... 20
Reversing Air Flow ........................................ 6
SERVICE ...................................................... 22
Start-Up ........................................................ 21
Suspending the Furnace ................................. 6
Thermostat.................................................... 15
Troubleshooting...................................... 23, 24
Optional Two-Stage Operation..................... 19
Uncrating ........................................................ 4
Valve ............................................................. 19
Venter............................................................ 23
Venting ........................................................... 9
Warranty ......................................................... 2
Wiring Diagrams ..................................... 16-17
Index by Page Number
Model EEDU
and HEEDU
Indoor/Power-Vented
Duct Furnaces
Reference: Replacement Parts Form, RGM 735
Model Characteristics
EED U
Indoor, Power-Vented, Standard CFM, 80%
Thermal Efficient
HEEDU
Indoor, Power-Vented, High CFM, 80%
Thermal Efficient