CONTENTS
4 | PART ONE |
| 30 | Wiring Diagram - Digital Models, Low NOx |
| OWNER'S OPERATING INSTRUCTIONS |
| 31 | SECTION 4 |
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| SERVICING INSTRUCTIONS |
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4 | SECTION 1 | 31 | General Location of Controls | |
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| 32 | Control Panel Removal | |
4 | Before | 32 | Control Adjustments - Digital Models | |
5 | Lighting Instructions & | 32 | Control Adjustments - Millivolt Models | |
| Manually Lighted Pilots MV | 33 | Digital Thermostat Controls | |
6 | Operating Instruction & | 33 | Thermostat Control Operation | |
| Automatically Lighted Pilots IID | 35 | Diagnostics | |
7 | After | 35 | Codes | |
7 | SECTION 2 |
| 35 | Reading a Fault |
| CAUTION |
| 36 | Remote Control Installation and Operation |
8 | SECTION 3 |
| 36 | Remote Operation |
| MAINTENANCE & CARE PROCEDURES |
| 36 | Activating the Remote |
8 | Pool & Spa Water Chemistry | 37 | Remote Control Wiring | |
8 | Automatic Chlorinators & Chemical Feeders | 37 | ||
9 | Cold Weather Operation | 37 | ||
9 | Winterizing the Pool & Spa Heater | 38 | Water Pressure Switch | |
10 | PART TWO |
| 38 | Flame |
| INSTALLATION & SERVICE INSTRUCTIONS |
| 38 | High Limits |
10 | SECTION 1 |
| 38 | Pilot Safety |
| RECEIVING EQUIPMENT |
| 39 | Burner Tray Removal (ATM) |
11 | SECTION 2 |
| 39 | Gas Valve Removal (ATM) |
| GENERAL SPECIFICATIONS |
| 39 | Main Burner and Orifice Removal (ATM) |
11 | SECTION 3 |
| 39 | Pilot Removal and Cleaning |
| INSTALLATION INSTRUCTIONS |
| 39 | Heat Exchanger Removal |
11 | Code Requirements | 40 | Tube Cleaning Procedure | |
12 | Clearances | 40 | Desooting Procedure | |
12 | Outdoor Heater Installation | 40 | Combustion Chamber Removal | |
14 | Florida Building Code 2001 | 40 | Immersion Well Replacement | |
15 | Indoor Heater Installation | 40 | Unitherm Governor (U.G.) Replacement | |
15 | Outdoor Stack/Indoor Stack | 41 | Low NOx Pool Heaters | |
16 | Atmospheric Specifications and Dimensions | 41 | Operation | |
17 | Low NOx Specifications and Dimensions | 41 | ||
18 | Combustion and Ventilation Air | 41 | Visual Inspection | |
18 | Vent Piping | 41 | Electrical | |
19 | Gas Supply Connections | 41 | Flame | |
20 | Gas Pressure Regulator | 42 | Burner Tray Removal | |
20 | Gas Pressure Adjustment Locations | 42 | Gas Valve Removal | |
20 | Pipe Sizing For Gas Connections | 42 | Main Burner and Orifice Removal | |
21 | Plumbing For Water Connections | 42 | Pilot Removal | |
21 | Flow Rates | 42 | Combustion Blower Removal | |
22 | Polymer Headers |
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43 | SECTION 5 | |||
22 | Cast Iron Headers |
| TROUBLESHOOTING | |
22 | Unitherm Governor Operation | 44 | Electrical - Standing Pilot Millivolt | |
23 | Internal Automatic Bypass Valve | 45 | Electrical - Electronic Ignition (IID) | |
23 | External Auxiliary Bypass Valve | 46 | Digital Control Logic - Flow Chart | |
23 | Auxiliary Bypass Valve Adjustment | 47 | SECTION 6 | |
23 | Pressure Relief Valve Installation |
| REPLACEMENT PARTS | |
24 | Heat Exchanger Pressure Drop Tables | 48 | Illustrated Parts List | |
25 | Heat Exchanger Reversal Procedure | 51 | Part Numbers | |
26Electrical Wiring
26Millivolt Models
26Digital Models
27Transformer Wiring
28Wiring Diagram - Millivolt (Mechanical Therm.)
29Wiring Diagram - Digital Models, Atmospheric
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