Design Dynamics VF-18N-MHD Gas Heater User Manual


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WARNING: This is an
  -
    
from the room in which


and ventilation air must
Air
for Combustion and Ven-
tilation

-
stalled in an aftermarket,*
 
 
-


   
   
   
   



SAFETY
 
 
alteration, service or main-
   

to this manual for correct
-
   -
tance or additional infor-



  -
   

masonry or UL127 factory-

  -
   
for these installations in
accordance with ANSI
  
   
  
that includes instructions
-
   

TABLE OF CONTENTS
Safety .................................................................. 2
Unpacking............................................................ 4
Product Identication ........................................... 5
Local Codes......................................................... 5
Product Features ................................................. 5
Air For Combustion and Ventilation ..................... 5
Installation ........................................................... 8
Operation ........................................................... 15
Inspecting Burners ............................................ 19
Cleaning and Maintenance ................................ 20
Troubleshooting ................................................. 21
Wiring Diagram .................................................. 24
Replacement Parts ............................................ 25
Service Hints ..................................................... 25
Technical Service............................................... 25
Accessories ....................................................... 25
Parts ..................................................................26
Warranty ..............................................Back Cover
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