Operator`s manual
PUREHEAT™ HYDRONIC AIR HEATER OPERATOR’S MANUAL 
V. 2, Rev. 09/01/06  iv  © 2006 Ground Heaters, Inc. 
   TABLE OF CONTENTS     
  Page 
Technical, Checklists, Warranty Information ....................................................................  i 
Warnings .....................................................................................................................................  ii, iii 
Specifications ............................................................................................................................  ix 
List of Abbreviations................................................................................................................  x 
INTRODUCTION 
1.1  EXTERNAL FEATURES ................................................................................................... 1-2 
1.2  INTERNAL COMPONENTS .............................................................................................. 1-3 
1.2.1  Heater with Burner Options ......................................................................................... 1-3 
1.2.2  Heater with Burner Detail ............................................................................................  1-4 
1.2.3 Inside Rear Doors........................................................................................................ 1-5 
1.3 IDENTIFICATION .............................................................................................................. 1-6 
1.4  SAFETY FEATURES......................................................................................................... 1-6 
1.5  SAFETY PRECAUTIONS.................................................................................................. 1-6 
1.5.1    Burner Setup, Installation and Adjustment Requirements .......................................... 1-7 
1.5.2  Operators..................................................................................................................... 1-7 
1.5.3  Safe Operation and Maintenance................................................................................  1-7 
1.6  REPAIR PARTS AND ACCESSORIES ............................................................................ 1-8 
1.7 MAINTENANCE................................................................................................................. 1-8 
1.8  OBTAINING WARRANTY SERVICE ................................................................................ 1-8 
START UP, OPERATION AND SHUTDOWN 
2.1  CIRCULATION SYSTEM ADVISORY............................................................................... 2-1 
2.1.1  Standard Configuration Performance.......................................................................... 2-1 
2.1.1.1    HX200 Heat Xchangers™ ................................................................................... 2-1 
2.1.1.2    HX200 Heat Xchangers™ with Optional Booster Pump ..................................... 2-1 
2.1.1.3    HX100 Heat Xchangers™ ................................................................................... 2-1 
2.1.1.4    HX100 Heat Xchangers™ with Booster Pump.................................................... 2-1 
2.1.1.5    HX50 Heat Xchangers™ .....................................................................................  2-2 
2.1.1.6    HX50 Heat Xchangers™ with Booster Pump...................................................... 2-2 
2.1.1.7    Maximum Heat Xchanger™ Connection Capability ............................................ 2-2 
2.1.2  Optional Booster Pump ...............................................................................................  2-2 
2.1.3  Circulation Hose Limitations ........................................................................................  2-2 
2.1.4  Insulate Circulation Hoses...........................................................................................  2-3 
2.1.5  Circulation Hose Protection .........................................................................................  2-3 
2.2 PRE-START UP CHECKS ................................................................................................ 2-3 
2.2.1  Positioning ................................................................................................................... 2-3 
2.2.2  Unloading HX200 Heat Xchangers™.......................................................................... 2-3 
2.2.3  Unloading HX100 Heat Xchangers™.......................................................................... 2-4 
2.2.4  Unloading HX50 Heat Xchangers™............................................................................  2-4 










