3
P/N S794 Rev. H 8-11-14
MAX-E-THERM
®
Pool and Spa Heater Installation and User’s Guide
Contents
Section 1. Introduction ..........................................................................................................
4
Important Notices .................................................................................................................................................................................
4
Warranty Information ............................................................................................................................................................................
4
Code Requirements ..............................................................................................................................................................................
5
Consumer Information and Safety Information ......................................................................................................................................
6 - 8
General Specifications .........................................................................................................................................................................
8
Section 2. Installation .............................................................................................................
9
Heater Description ................................................................................................................................................................................
9
Sequence of Operation/Putting the Heater into Service ........................................................................................................................
9
Specifications ......................................................................................................................................................................................
10
Plumbing Connections ..........................................................................................................................................................................
11
Valves ..................................................................................................................................................................................................
11
Manual By-Pass ..................................................................................................................................................................................
11
Water Connections ...............................................................................................................................................................................
12
Below Pool Installation .........................................................................................................................................................................
12
Gas Connections .................................................................................................................................................................................
13
Sediment Traps ....................................................................................................................................................................................
13
Gas Pipe Sizing ...................................................................................................................................................................................
14
Testing Gas Pressure/Gas Pressure Requirements .............................................................................................................................
15
Outdoor Installation ..............................................................................................................................................................................
16
Outdoor Installation Venting Guidelines ................................................................................................................................................
17
Indoor Venting—General Requirements (Category I & Category III – clarification) ...............................................................................
18
Heater Clearances ................................................................................................................................................................................
18
Outside Vent Removal .........................................................................................................................................................................
18
Combustion Air Supply .........................................................................................................................................................................
19
Corrosive Vapors and Possible Causes ................................................................................................................................................
19
Vent Installation (Indoor Installation for U.S. or Outdoor Shelter for Canada) ........................................................................................
20
Vertical Venting - Negative Pressure / Direct Air Intake with 3-inch PVC Pipe (indoor Installation) ......................................................
20 - 22
Horizontal or Vertical Venting - Positive Pressure ................................................................................................................................
23
Connecting Special Gas Venting ..........................................................................................................................................................
23 - 25
Outdoor Shelter Installation ..................................................................................................................................................................
26
Garage or Utility Room Installation .......................................................................................................................................................
26
Control Panel Indexing .........................................................................................................................................................................
27
Final Installation Check ........................................................................................................................................................................
27
Electrical Connections ..........................................................................................................................................................................
28
Fireman’s Switch Connection/Remote Control Connections ..................................................................................................................
29
Max-E-Therm heater
®
Wiring Diagram ..................................................................................................................................................
30
Electrical Schematic Ladder Diagram ...................................................................................................................................................
31
Section 3. Operation ...............................................................................................................
32
Basic System Operation ......................................................................................................................................................................
32
HSI (Hot-Surface Ignition) Lighting/Operation .......................................................................................................................................
32
Operating Instructions ..........................................................................................................................................................................
33
To Turn Off Gas to Appliance ...............................................................................................................................................................
33
Safety Controls ....................................................................................................................................................................................
34 - 36
Section 4. Troubleshooting ...................................................................................................
37
Initial Troubleshooting and Troubleshooting Chart .................................................................................................................................
37
Heater Will Not Fire Troubleshooting ....................................................................................................................................................
38 - 41
LED Diagnostics ..................................................................................................................................................................................
42 - 43
Burner / Heat Exchanger Troubleshooting ............................................................................................................................................
44
Section 5. Maintenance ..........................................................................................................
45
Care and Maintenance ..........................................................................................................................................................................
45
Pressure Relief Valve ...........................................................................................................................................................................
45
After Start-Up ......................................................................................................................................................................................
46
Spring, Fall and Winter Operation .........................................................................................................................................................
46
Maintaining Pool Temperature ...............................................................................................................................................................
47
Energy Saving Tips ..............................................................................................................................................................................
47
Chemical Balance ................................................................................................................................................................................ 47 - 48
Replacement Parts .............................................................................................................................................................................. 49 - 53