Table of Contents
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Installation and Operation Data
FOR YOUR SAFETY - This product must be installed and serviced by a profes-
sional service technician, qualified in pool heater installation. Improper installa-
tion and/or operation could create carbon monoxide gas in flue gases which
could cause serious injury, property damage, or death. Improper installation and/
or operation will void the warranty.
Installation and
Operation Manual
Lite2 Pool and Spa
Heater
Model LJ
Natural Gas or LP Gas
NOTE: LP Gas For
Outdoor Use Only
WARNING: If these instructions are not followed exactly, a fire or explosion may
result, causing property damage, personal injury, or death.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or any other appliance.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a nearby phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency,
or the gas supplier.
WHAT TO DO IF YOU SMELL GAS
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Table of Contents
Troubleshooting
Related Manuals for Jandy LJ
Summary of Contents for Jandy LJ
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Page 1: Operation Manual
Installation and Operation Data FOR YOUR SAFETY - This product must be installed and serviced by a profes- sional service technician, qualified in pool heater installation. Improper installa- tion and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. -
Page 2: Table Of Contents
TABLE OF CONTENTS SECTION 1. General Information SECTION 7. Operating Instructions Introduction ..........1 (Continued) Consumer Information and Safety ....1 7.2.1 Setting the Real Time Clock ...... 19 1.2.1 Spa/Hot Tub Safety Rules ......1 7.2.2 Setting the Temperature Scale ....20 1.2.2 Swimming Pool Energy Safety Tips ..... -
Page 3: Section 1. General Information
Model LJ Pool and Spa Heater Page 1 SECTION 1. General Information 1.1 Introduction Pregnant women take note! 1.2 Consumer Information and Safety... -
Page 4: Swimming Pool Energy Safety Tips
Page 2 NOTE: 1.4 Codes and Standards 1.5 Technical Assistance 1.3 Warranty 1.6 Materials Installer Must Provide... -
Page 5: Materials For Special Applications
Model LJ Pool and Spa Heater Page 3 1.7 Specifications SECTION 2. Installation Instructions 2.1 Introduction For diameter of gas line from meter to heater see Table 3 in Section 4.1. -
Page 6: Field Assembly
Page 4 Venting Dimensions * Ratings shown are for both natural and propane gas. Figure 1. General Configuration. 2.2. Field Assembly... -
Page 7: Location Requirements
Model LJ Pool and Spa Heater Page 5 2.3 Location Requirements Do not Heaters must never be installed directly on carpeting. Table 1. Minimum Heater Clearances From Combustible Surfaces Note: Clearances listed in INDOOR (OUTDOOR OUTDOOR INSTALLATION Table 1 are manufacturer's SIDE OF SHELTER INSTALLATION tested values. -
Page 8: Outdoor Installation
Page 6 Notes: Figure 3. Outdoor Heater Installation. 1. Blocks must provide solid base and be braced so they cannot slip out of place. 2. Air openings in blocks must be arranged to provide unrestricted opening through entire width or length of base. -
Page 9: Section 3. Venting
Model LJ Pool and Spa Heater Page 7 Notes: 1. An Underwriters' Laboratories listed vent cap is required to prevent downdraft and allow the heater to function properly and safely. 2. Use approved roof jack. Figure 4. Indoor Installation Venting (USA), or Outdoor Shelter (Canada). Table 2. -
Page 10: Vent Pipe Sizing And General Installation
Page 8 Outside Air Supply: 3.2 Vent Pipe Sizing and General Installation Note: Exhaust Fans or Vents:... -
Page 11: Section 4. Gas Connections
Model LJ Pool and Spa Heater Page 9 Table 3. Altitude Designations for the LJ Pool Heater IMPORTANT NOTE: SECTION 4. Table 4. Natural Gas Pipe Size Requirements Gas Connections Distance from Gas Meter 0-50 feet 50-100 feet 100-200 feet 4.1 Gas Supply and Piping Heater (0-15 m) - Page 12 Page 10 NOTE: Table 5. Gas Supply Pressure Requirements Supply Pressure Natural Gas Propane Gas Figure 5. The proper design for a sediment trap / drip leg. Water Column (mm) (mm) Minimum (140) 10.0 (255) Maximum 10.0 (255) 14.0 (355) Note: When using metal pipe as heat sink, join metal and PVC/CPVC, using metal male and PVC/CPVC female connection.
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Page 13: Special Precautions For Propane Gas
Model LJ Pool and Spa Heater Page 11 4.2. Special Precautions for Propane Gas 5.4 Reversible Water Connections SECTION 5. Water Connections 5.1 Water Piping 5.2 Check Valve Installation 5.3 Automatic Flow Control Valve Figure 7. Heat exchanger reversal. - Page 14 Page 12 Figure 10. Vestibule covers. Figure 8. Flue collector hold-down brackets. Figure 11. Heat exchanger and end baffles. Figure 9. Temperature sensing bulb.
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Page 15: Connections At Heater
Model LJ Pool and Spa Heater Page 13 5.5 Connections at Heater Figure 12. Piping installation. -
Page 16: Pressure Relief Valve
Page 14 Figure 14. Thermometer and pressure relief valve. Figure 13. Plastic piping connections. 5.7 Auxiliary Components, Chlorinators, Ozone Generators, and Sanitizing Chemicals. 5.6 Pressure Relief Valve... -
Page 17: Section 6. Electrical
Model LJ Pool and Spa Heater Page 15 SECTION 6. Electrical 6.1 General Information NOTE 6.2 Main Power The heater comes factory-wired intended for use with 230 Volt, 60 Hz AC field electrical supply. To use 115 Volt, 60 Hz AC requires a different wiring configuration for the pump. -
Page 18: Wiring Diagram
Page 16 LITE2 MODEL LJ WIRING CONNECTION DIAGRAM Figure 15. Wiring Connection Diagram and Schematic Diagram... -
Page 19: Bonding
Model LJ Pool and Spa Heater Page 17 WIRES FROM POWER SOURCE BLACK GROUND SCREWS GREEN GREEN BLACK WIRES PUMP Figure 16. Field Wiring Connections (230V Shown). 6.3 Bonding Caution 6.4 Pump Power Connection... -
Page 20: Start-Up
Page 18 SECTION 7. Operating Instructions 7.1 Start-Up IMPORTANT:... -
Page 21: Setting The Tc2000 Controller Functions And Limits
Model LJ Pool and Spa Heater Page 19 7.2 Setting the LJ Controller Functions and Limits CLOCK SET 1:00 6:00 6:00 HOLD FOR 7 SECONDS TO RESET TO FACTORY DEFAULT VALUES 6:45 NORMAL Figure 17. LJ Controller and Display... -
Page 22: Setting The Temperature Scale
Page 20 POOL SET °F / °C 80°F 87°F °F °C NORMAL NORMAL SPA SET 102°F 104°F... -
Page 23: Setting The Freeze Temperature
Model LJ Pool and Spa Heater Page 21 NORMAL PROGRAM 8:00 9:00 9:00 FREEZE SET 9:32 38°F 40°F O F F 8:00 O F F 4:00 NORMAL... -
Page 24: Lighting And Shutdown Procedures
Page 22 Table 6. LJ Controller Default Settings O F F 4:00 F ° F ° O F F F ° 4:20 F ° ° / F ° NORMAL 7.3 Lighting and Shutdown Procedures NORMAL Read and follow all safety instructions first. POOL NOTE: 7.4 Heater/Controller Operation... - Page 25 Model LJ Pool and Spa Heater Page 23 FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. A. This appliance does not have a pilot light. •...
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Page 26: Pump Operation
Page 24 °f NORMAL 7.5. Remote Control Operation °F/°c... -
Page 27: Adjusting The Pressure Switch
Model LJ Pool and Spa Heater Page 25 CONTROLLER FLAME SENSOR GAS VALVE SAFETY CIRCUIT FIREMAN SWITCH PUMP BLOWER POWER IN SELECT PLUG IGNITER POWER POWER Figure 18. ON/OFF Type remote switch. Figure 19. LJ controller display. 7.6 Adjusting the Pressure Switch NOTE:... -
Page 28: Temperature Rise
Page 26 Figure 20. Pressure Switch Adjustment. counterclockwise The heater must not come temperature rise Table 7. Temperature Rise and Minimum Flow Rates Minimum Minimum Maximum Size GPM (LPM) °F (°C) °F (°C) 7.7. Temperature Rise (76) (15) (20) (76) (19) (24) (95) -
Page 29: Adjusting The Manual Bypass Valve
Model LJ Pool and Spa Heater Page 27 7.8. Adjusting the Manual Bypass Valve SECTION 8. Maintenance 8.1 Water Chemistry... -
Page 30: Seasonal Care
Page 28 Table 8. Mineral Concentration Levels Test Recommended Level Free chlorine 1.0 to 3.0 ppm Bromine 3.0 to 5.0 ppm 7.2 to 7.8 Total alkalinity (TA) 80 to 120 ppm Calcium hardness (CH) 200 to 400 ppm Langelier saturation index (LSI) -0.5 to +0.5 Total dissolved solids (TDS) Less than 2000 ppm Cyanuric acid... -
Page 31: Spring Start-Up
Model LJ Pool and Spa Heater Page 29 Figure 22. Pressure switch copper tubing. 8.3 Inspection and Service... -
Page 32: General Heater Trouble Shooting Guide
Page 30 The heater must not come on. Figure 23. Main Burner Flame. NOTE SECTION 9. Troubleshooting 9.1 General Heater Troubleshooting NOTE:... -
Page 33: Tc2000 Error Codes
Model LJ Pool and Spa Heater Page 31 Troubleshooting Guide Symptom Cause Remedy 9.2 LJ Controller Service Codes Figure 24. Typical Service Code Display... -
Page 34: Resetting Tc2000 Error Codes
Page 32 LITE2 LJ CONTROLLER HEATER SERVICE DIAGNOSTIC GUIDE SERVICE CODE CAUSE REMEDY FL 0 1. Pressure Switch opened (open switch in the A. Pump is not running. A. Turn pump on or check to see that external time safety circuit) clock is synchronized with LJ time clock. - Page 35 Model LJ Pool and Spa Heater Page 33 SERVICE CODE CAUSE REMEDY FL 2 1. No Ignition (failed ignition) A. Low gas supply pressure. A. Identify and repair incorrect supply pipe size or pipeline blockage. Refer to qualified personnel. B. Air in gas line. B.
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Page 36: Section 10. Professional Maintenance And Service
Page 34 SERVICE CODE CAUSE REMEDY FL 5 1. Brown-out Condition (brown-out) A. Incoming voltage is too low to A. No Service Required. Heater will automatically safely operate heater. reset itself once proper voltage is restored. If error persists, Refer to qualified personnel. B. -
Page 37: Fusible Link
Model LJ Pool and Spa Heater Page 35 EXHAUST VENT TOP FLUE COLLECTOR HEAT EXCHANGER COMBUSTION CHAMBER BURNER BURNER TRAY SHELF FLOW Figure 25. Atmospheric Combustion System Flame Sensor - LJ Temperature Control/Ignition Control Combination System a) Temperature Control- Limit Switches b) Ignition Control Water Pressure Switch Fusible Link... - Page 38 Page 36 CIRCUIT TEST POINTS POWER DISTRIBUTION BOARD TEST POINTS Figure 26. Power and Control Circuit Test Points...
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Page 39: Electrical Troubleshooting
Model LJ Pool and Spa Heater Page 37 10.4.Electrical Troubleshooting Note: Pump must be running during the troubleshooting procedure. -
Page 40: Fireman Switch And External Interlocks
Page 38 temporarily Note... -
Page 41: Igniter/Ignition Control
Model LJ Pool and Spa Heater Page 39 SECTION 11. Replacement Parts 11.1 Ordering Information 11.2 Parts List Model Order Description Part No. MAIN GAS ASSEMBLY Burner Tray Assy, NAT 125-400 R0383601-05 Burner Tray Assy, LPG 125-400 R0383701-05 Burner Tray, Shelf Only 125-400 R0317001-05 Gas Valve, NAT R0317100... - Page 42 Page 40 Model Order Model Order Description Part No. Description Part No. ELECTRICAL SYSTEM WATER SYSTEM (Continued) Heater Control Assembly R0366200 By-Pass Valve Spring, Purple S0079900 High Voltage Assembly R0366500 By-Pass Valve Spring, White S0061400 Transformer with Wiring Harness R0366700 By-Pass Valve Spring, Red S0061300 Power Control Board...
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Page 43: General Exploded View
Model LJ Pool and Spa Heater Page 41 11.3 General Exploded View UNITED STATES HEAT EXCHANGER SEE NEXT PAGE FOR DETAIL HEATER CONTROL SEE NEXT PAGE FOR DETAIL BURNER TRAY SEE NEXT PAGE FOR DETAIL... -
Page 44: Detailed Exploded View
Page 42 11.4 Detailed Exploded View... - Page 45 Model LJ Pool and Spa Heater Page 43 NOTES...
- Page 46 Page 44 NOTES...
- Page 47 Model LJ Pool and Spa Heater Page 45 NOTES Jandy® are trademarks of Jandy Industries, Inc. Laars LT® and Laars LX® are trademarks of Laars, Inc. All other brand names, products names or trademarks belong to their respective holders.
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Page 48: Warranty
EXCLUSIONS: The liability of Water Pik Technologies, Inc. and Jandy shall not exceed the repair or replacement of defective parts and does not include any costs for labor to remove and reinstall the defective part, transportation to or from the factory, and any other materials required to make the repair.