Table of Contents
Section 2. Introduction ..........................................................................................................
Important Notices .................................................................................................................................................................................
Warranty Information ............................................................................................................................................................................
Code Requirements ..............................................................................................................................................................................
General Specifications .........................................................................................................................................................................
Section 3. Installation .............................................................................................................
Heater Description ................................................................................................................................................................................
Putting the Heater into Service ............................................................................................................................................................
Specifications ......................................................................................................................................................................................
Plumbing Connections ..........................................................................................................................................................................
Valves ..................................................................................................................................................................................................
Manual By-Pass ..................................................................................................................................................................................
Water Connections ...............................................................................................................................................................................
Below Pool Installation .........................................................................................................................................................................
Gas Connections .................................................................................................................................................................................
Sediment Traps ....................................................................................................................................................................................
Gas Pipe Sizing ...................................................................................................................................................................................
Outdoor Installation ..............................................................................................................................................................................
Indoor Venting-General Requirements (Category I & Category III - clarification) ...............................................................................
Heater Clearances ................................................................................................................................................................................
Outside Vent Removal .........................................................................................................................................................................
Combustion Air Supply .........................................................................................................................................................................
Corrosive Vapors and Possible Causes ................................................................................................................................................
Vertical Venting - Negative Pressure ...................................................................................................................................................
Connecting Special Gas Venting ..........................................................................................................................................................
Outdoor Shelter Vent Installation ..........................................................................................................................................................
Garage or Utility Room Installation .......................................................................................................................................................
Control Panel Indexing .........................................................................................................................................................................
Final Installation Check ........................................................................................................................................................................
Electrical Connections ..........................................................................................................................................................................
MasterTemp Wiring Diagram .................................................................................................................................................................
Electrical Schematic Ladder Diagram ...................................................................................................................................................
Section 4. Operation ...............................................................................................................
Basic System Operation ......................................................................................................................................................................
HSI (Hot-Surface Ignition) Lighting/Operation .......................................................................................................................................
Operating .............................................................................................................................................................................................
To Turn Off Gas to Appliance ...............................................................................................................................................................
Safety Controls ....................................................................................................................................................................................
Initial Troubleshooting and Troubleshooting Chart .................................................................................................................................
Heater Will Not Fire Troubleshooting ....................................................................................................................................................
LED Diagnostics ..................................................................................................................................................................................
Section 6. Maintenance ..........................................................................................................
Care and Maintenance ..........................................................................................................................................................................
Pressure Relief Valve ...........................................................................................................................................................................
After Start-Up ......................................................................................................................................................................................
Spring, Fall and Winter Operation .........................................................................................................................................................
Maintaining Pool Temperature ...............................................................................................................................................................
Energy Saving Tips ..............................................................................................................................................................................
Chemical Balance ................................................................................................................................................................................
Replacement Parts ..............................................................................................................................................................................
Rev. C 10-5-07
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P/N 472592