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 ..................................................................................................................
Using the Heater's 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 ....................................................................................................................................................................
Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting ......................................................................................
Direct Air Intake Duct with 63 mm (2.5 in) PVC Pipe (Heater Indoor Installation) .............................................................................
Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent ...........................................................................................
Connecting Single-Wall Stainless Steel Vent to the Heater ............................................................................................................. 18 - 19
Corrosive Vapors and Possible Causes ..............................................................................................................................................
Control Panel Indexing .......................................................................................................................................................................
Final Installation Check .......................................................................................................................................................................
Electrical Connections ........................................................................................................................................................................
Fireman's Switch Connection/Remote Control Connections .............................................................................................................. 21 - 22
MasterTemp Wiring Diagram / Electrical Schematic Ladder Diagram ................................................................................................. 23 - 24
Section 3. Troubleshooting .................................................................................................................
Initial Troubleshooting and Troubleshooting Chart .............................................................................................................................
Heater Will Not Fire Troubleshooting (A, B, C, D) ............................................................................................................................... 26 - 29
LED Diagnostics (AGS, AFS, HLS, PS Thermistor) ............................................................................................................................. 30 - 31
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. D 1/2016
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Contents
MASTERTEMP
™
Pool and Spa Heater Installation and User's Guide
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