Operator`s manual
 PUREHEAT™ HYDRONIC AIR HEATER OPERATOR’SMANUAL 
© 2006 Ground Heaters, Inc.  v  V. 2, Rev. 09/01/06   
  TABLE OF CONTENTS (continued) 
    Page
2.2.5  Heat Transfer Fluid (HTF)............................................................................................ 2-4 
2.2.6  Switch Positions........................................................................................................... 2-4 
2.2.7    Deployment of Circulation Hoses or Option Heat Transfer Hose................................ 2-5 
2.3  SETUP .............................................................................................................................  2-5 
2.4 START UP ......................................................................................................................... 2-5 
2.4.1  Integrity Check............................................................................................................. 2-5 
2.4.2  Warming the Heat Transfer Fluid ................................................................................ 2-6 
2.4.3    Initiating Flow through Heat Transfer Hose .................................................................  2-6 
2.5  OPERATING WITH OPTIONAL ACCESSORIES............................................................. 2-7 
2.5.1  Using Three HHS3004 with Booster Pump for Thawing Applications......................... 2-7 
2.5.2    Using Five HHS3004 with Booster Pump for Curing and Frost Prevention Applications  2-7 
2.6  MONITORING OPERATING PARAMETERS ................................................................... 2-8 
2.7 UNIT SHUTDOWN............................................................................................................. 2-9 
2.7.1  Burner Shutdown ......................................................................................................... 2-9 
2.7.2  Disconnecting Hoses from Heat Xchangers™ and Pureheat ..................................... 2-9 
2.7.3    Rewinding the Circulation Hose .................................................................................. 2-9 
2.7.4  Completing Unit Shutdown .......................................................................................... 2-10 
2.8  CONNECTING/DISCONNECTING OPTIONAL BOOSTER PUMP.................................. 2-10 
2.8.1  Connecting................................................................................................................... 2-10 
2.8.2  Start Up........................................................................................................................ 2-11 
2.8.3  Shutdown..................................................................................................................... 2-11 
2.8.4  Disconnecting .............................................................................................................. 2-11 
BURNER ADJUSTMENT AND SHUTDOWN 
3.1  NATURAL GAS/LIQUID PROPANE VAPOR ................................................................... 3-1 
3.1.1  Burner Adjustment ....................................................................................................... 3-1 
3.1.1.1    Fuel Pressure Adjustment ................................................................................... 3-2 
3.1.1.2    Air Setting and Adjustment .................................................................................. 3-2 
3.1.1.3    O
2
 Content Sampling ........................................................................................... 3-3 
3.1.1.4    Smoke Spot Sampling ......................................................................................... 3-3 
3.1.2  Burner Shutdown ......................................................................................................... 3-3 
3.2 DIESEL/FUEL OIL ............................................................................................................. 3-3 
3.2.1  Burner Adjustment ....................................................................................................... 3-3 
3.2.1.1    Fuel Pressure Adjustment ................................................................................... 3-4 
3.2.1.2    Air Setting and Adjustment .................................................................................. 3-4 
3.2.1.3    O
2
 Content Sampling ........................................................................................... 3-4 
3.2.1.4    Smoke Spot Sampling ......................................................................................... 3-4 
3.2.2  Burner Shutdown ......................................................................................................... 3-5 










