Table of Contents
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Technical Data / Heater Identification Information (HIN) ....................................................................................................................................
Code Requirements / References ....................................................................................................................................................................
Consumer Information and Safety / Warnings and Safety Instructions / General Specifications ............................................................
Section 1. Operations ...........................................................................................................................
Overview / Important Notices / Warranty Information ....................................................................................................................
Operating the Control Panel ............................................................................................................................................................
Operating Instructions / Basic System Operation ..........................................................................................................................
Basic System Operation / HSI (Hot-Surface Ignition) Lighting/Operation ...................................................................................
Start-up and Operation .....................................................................................................................................................................
Operating Instructions ......................................................................................................................................................................
To Turn Off Gas to Appliance ...........................................................................................................................................................
Safety Controls: Air Flow Switch (AFS) / Water Pressure Switch / Height Limit Devices ..........................................................
Operation of Ignition Module ...........................................................................................................................................................
Temperature Setting / Maximum Temperature Set Point ...............................................................................................................
Section 2. Installation Instructions ......................................................................................................
Heater Description ................................................................................................................................................................................
Sequence of Operation .........................................................................................................................................................................
Putting the Heater into Service ............................................................................................................................................................
Specifications ......................................................................................................................................................................................
Plumbing Connections ..........................................................................................................................................................................
Valves ..................................................................................................................................................................................................
Manual By-Pass ..................................................................................................................................................................................
Water Connections ...............................................................................................................................................................................
Below Pool Installation .........................................................................................................................................................................
Gas Connections .................................................................................................................................................................................
Gas Pipe Sizing ...................................................................................................................................................................................
Sediment Trap/Drip Leg .......................................................................................................................................................................
Testing Gas Leaks and Gas Pressure ..................................................................................................................................................
Gas Pressure Requirements ................................................................................................................................................................
Outdoor Installation / Heater Clearances ..............................................................................................................................................
Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ) ..........................................................................
Combustion Air Supply / Corrosive Vapors and Possible Causes .....................................................................................................
Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting ........................................................................................
Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent .............................................................................................
Connecting Single-Wall Stainless Steel Vent to the Heater ..............................................................................................................
Horizontal or Vertical Venting Flexible Duct (Flex-Vent) ....................................................................................................................
Corrosive Vapors and Possible Causes ................................................................................................................................................
Control Panel Indexing .........................................................................................................................................................................
Final Installation Check ........................................................................................................................................................................
Electrical Connections ..........................................................................................................................................................................
Fireman's Switch Connection/Remote Control Connections ..................................................................................................................
MasterTemp Wiring Diagram / Electrical Schematic Ladder Diagram ....................................................................................................
Section 3. Troubleshooting ..................................................................................................................
Initial Troubleshooting and Troubleshooting Chart .................................................................................................................................
Heater Will Not Fire Troubleshooting (A, B, C, D) ................................................................................................................................
LED Diagnostics (AGS, AFS, HLS, PS Thermistor) ............................................................................................................................
Burner / Heat Exchanger Troubleshooting ............................................................................................................................................
Section 4. Maintenance Instructions ....................................................................................................
Care and Maintenance ..........................................................................................................................................................................
Pressure Relief Valve ...........................................................................................................................................................................
After Start-Up ......................................................................................................................................................................................
Spring, Fall (Autumn) and Winter Operation ........................................................................................................................................
Maintaining Pool Temperature / Energy Saving Tips .............................................................................................................................
Chemical Balance ................................................................................................................................................................................
Replacement Parts ..............................................................................................................................................................................
P/N 475106 Rev. A 2/2014
Contents
MASTERTEMP
™
Pool and Spa Heater Installation and User's Guide
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Table of Contents
Troubleshooting
