Table of Contents
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Installation and Operation Data
FOR YOUR SAFETY - This product must be installed and serviced by authorized person-
nel, qualified in pool/spa heater installation. Improper installation and/or operation can
create carbon monoxide gas and flue gases which can cause serious injury, property
damage, or death. For indoor installations, as an additional measure of safety, Jandy Pool
Products, Inc. strongly recommends installation of suitable Carbon Monoxide detectors in
the vicinity of this appliance and in any adjacent occupied spaces. 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
This product is manufactured under the
following listed United States patents:
3,446,566 - 4,461,274 - 4,421,270 -
5,117,233 - 5,163,508 -
Other patents pending
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.
To the Installer: After installation, these instructions must be given to the homeowner or left on or
To the User: This booklet contains important information that will help you in operating and
maintaining this heater. Please retain it for future reference.
WHAT TO DO IF YOU SMELL GAS
near the heater.
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Table of Contents
Troubleshooting
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Summary of Contents for Jandy LJ
- Page 1 Improper installation and/or operation can create carbon monoxide gas and flue gases which can cause serious injury, property damage, or death. For indoor installations, as an additional measure of safety, Jandy Pool Products, Inc. strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces.
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Page 2: Table Of Contents
2.3.1 Introduction ........... 5 2.3.2 Clearances ........... 6 Start-Up ..........20 2.3.3 Flooring ..........6 Setting the LJ Controller 2.3.4 Outdoor Installation ....... 7 Functions and Limits ......21 2.3.5 Indoor and Outdoor Shelter 7.2.1 Setting the Real Time Clock ....22 Installation .......... - Page 3 8.3.1 Owner Inspection ....... 33 8.3.2 Professional Inspection ...... 33 SECTION 9. Troubleshooting General Heater Troubleshooting ..34 LJ Controller Service Codes ....34 9.2.1 Explanation of Error Codes ....34 9.2.2 Resetting the LJ Controller Service Codes ........35 SECTION 10.
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Page 4: Section 1. General Information
This manual provides installation and operation temperature guidelines before setting instructions for the Lite2 Model LJ pool and spa temperature. heaters. Read these installation and operation instruc- tions completely before proceeding with the installa- AVERTISSEMENT tion. -
Page 5: Swimming Pool Energy Safety Tips
Details are specified on the back cover of this manual. • Failure to recognize need to leave spa Make all warranty claims to an authorized Jandy representative or directly to the factory. Claims must • Physical inability to leave spa include the heater serial number and model (this •... -
Page 6: Materials Installer Must Provide
Model LJ Pool and Spa Heater Page 3 1.6 Materials Installer Must Provide 1.7 Specifications 1.6.1 Materials for All Applications 1.7.1 General Specifications The following items are needed and are to be Installation Location. supplied by the installer for all Lite2 heater installa-... -
Page 7: Dimensions
Page 4 11. Modification of Heater for High Altitude: AVERTISSEMENT The Jandy Lite 2 model LJ heater is normally Une installation ou un entretien inadéquat peut shipped from the factory in the low altitude (sea causer la nausée ou l’asphyxie en raison du level) operational configuration. -
Page 8: Location Requirements
When pool equipment is located below the pool Products, Inc. n’est pas responsable des surface, a leak from any component can cause large scale water loss or flooding. Jandy Pool pertes d’eau, des inondations ou des avaries Products, Inc. cannot be responsible for such causées par une installation ou un entretien... -
Page 9: Clearances
Jandy, is used. See the heater rating plate or the All criteria given in the following sections reflect Parts List (Section 11) of this manual for the appropri- minimum clearances as stated in the national stan- ate base part number. -
Page 10: Outdoor Installation
Model LJ Pool and Spa Heater Page 7 2.3.4 Outdoor Installation Lite2 heaters can be installed in the low-profile configuration as received from the factory, or with an optional factory approved vent cap for high wind applications. Locate the heater in an open, unroofed area. -
Page 11: Indoor And Outdoor Shelter Installation
(see Une remise extérieure (au Canada seulement) Figure 5 and Table 3). Jandy Pool Products, Inc. does est un endroit inoccupé qui ne communique pas directement avec les endroits occupés. Toutes les Table 3. -
Page 12: Vent Pipe Sizing And General Installation
The installation must be in accordance with the latest edition of CAN/CSA B149.1. Jandy Pool Products, Inc. does not recom- 3.2 Vent Pipe Sizing and General mend outdoor shelter installations that depend on Installation internal air for combustion. -
Page 13: Section 4. Gas Connections
Be sure to support all venting so that connections will not separate and so that the weight of the vent The Jandy Lite2 model LJ pool and spa heaters pipe does not rest on the heater draft hood. All con-... - Page 14 Check all local codes for compliance before installing plate. Jandy Lite2 LJ heaters, as shipped from the heater. the factory, are certified to operate within the altitude range indicated on the rating plate. If a...
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Page 15: Manifold Pressure
CAUTION With the heater firing, the pressure must be Manifold gas pressure for the Lite2 LJ natural within the range shown in Table 5. Also check the gas heaters should be set at 4" WC. Propane pressure with the heater off. -
Page 16: Section 5. Water Connections
Jandy Pool Products, Inc. recommends the installation of a pressure relief valve on the heater (see Section 5.6). - Page 17 Page 14 Figure 9. Flue collector hold-down brackets Figure 11. Vestibule covers the connections to the left side to improve access for installation and service. Perform this modification Tag and disconnect the white wire on the before installing the heater using the following proce- pressure switch (PS) and the white wire from the dures: fusible link.
- Page 18 Model LJ Pool and Spa Heater Page 15 heater (sizes 125,175 and 250 only), the end 20. Reinstall the drain plugs and tighten securely. baffles of the heat exchanger must be removed. Replace jacket/plug grommets. There are two baffles covering part of the front 21.
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Page 19: Connections At Heater
Heater damage caused by excessive chemicals or Screw CPVC nipples into metal flange until tight, improper ozonization is not covered by the Jandy Pool using Teflon® tape on plastic threads. Products, Inc. warranty. Be sure to adhere to the... -
Page 20: Section 6. Electrical
This will convert all power in the heater to 115 VAC. POSSIBILITÉ DE CHOCS ÉLECTRIQUES. Ce To wire the Lite2 model LJ heater to a 115 V or système de chauffage contient du filage de 230 V / 60 Hertz (Hz) electrical source: haut voltage. -
Page 21: Wiring Diagram
Page 18 LITE2 MODEL LJ WIRING CONNECTION Figure 16. Wiring Connection Diagram and Schematic Diagram... -
Page 22: Bonding
Model LJ Pool and Spa Heater Page 19 WIRES FROM POWER SOURCE BLACK GROUND SCREWS GREEN GREEN BLACK WIRES PUMP Figure 17. Field Wiring Connections (230V Shown) 6.3 Bonding box (see Figure 17). Be sure to follow the wiring diagram (see Figure 16) to configure the power CAUTION for the correct input voltage. -
Page 23: Pump Power Connection
70, unless local code requirements indicate otherwise. tion residue from the water. Clean the filter at the end To connect the pump to the LJ controller internal of this operation before starting the heater. When time clock, perform the following steps. -
Page 24: Setting The Lj Controller Functions And Limits
Ne touchez pas à ces display items mentioned in the following sections. surfaces lorsque l’appareil est en marche. NOTE: All of the functions and limits of the LJ controller can be reset to the original manufacturer's default values by pressing and WARNING holding the ENTER key for 7 seconds. -
Page 25: Setting The Real Time Clock
7.2.1 Setting the Real Time Clock 7.2.2 Setting the Temperature Scale The 'REAL TIME CLOCK' displays the current The LJ controller can display all temperature time when the heater is set to the "Internal Time readings in either degrees Fahrenheit or degrees Clock"... -
Page 26: Setting The Freeze Temperature
The pump must be controlled by the heater's internal time clock for the freeze protection to operate to flash. (pump wired to an optional internal relay). The LJ controller will protect your pool and spa equipment 80°F from damage due to freezing for short periods of time. -
Page 27: Setting The Internal Pump Time Clock
Before starting your heater, be sure that all of the Press the UP or DOWN key to adjust the hour. functions and limits of the LJ controller have been set The PM indicator shows for PM time. There is according to the previous section of this manual no indicator for AM time. - Page 28 Model LJ Pool and Spa Heater Page 25 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. It is •...
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Page 29: Normal Operation
Before starting your heater be sure to read and 'PUMP' key. If not using the LJ controller pump time become familiar with the Lighting and Shutdown clock, the external time clock must first be activated. -
Page 30: Pump Operation In "Internal Time Clock" Mode
Clock". When the pump time clock is set with these 7.4.3 Locking/Unlocking the Keypad limits, it allows the internal time clock of the LJ Once all of the limits have been set (see Section controller to run the pump for 24 hours. This setup 7.2, "Setting the LJ Controller Functions and Limits") -
Page 31: Remote Control Connected At The Heater's Control Panel
15 feet (4.57 m) above or 6 feet setting the spa temperature to 104°F (40°C). (1.83 m) below the pool surface. Consult your local To set the LJ controller for remote control use, Jandy representative for recommendations. follow the instructions at the beginning of this section On some installations, the piping from the heater setting the controller into the "External Time Clock"... -
Page 32: Temperature Rise
Model LJ Pool and Spa Heater Page 29 Turn filter pump on by depressing the PUMP Return the pool temperature control to the desired key. If a two-speed pump is used, make sure it temperature. Repeatedly depress the MODE key is at high speed. -
Page 33: Adjusting The Manual Bypass Valve
Page 30 13. Subtract the first temperature reading (cold c. Turn off the power to the filter pump at the water) from the second temperature reading circuit breaker. (heated water). The difference between the two readings is the temperature rise. The tempera- d. -
Page 34: Section 8. Maintenance
Model LJ Pool and Spa Heater Page 31 11. If the temperature rise is above the maximum, Table 8. Mineral Concentration Levels there is not enough water flowing through the Test Recommended Level heater. Check for clogging in the water filter or restriction in the water pipes. -
Page 35: Spring Start-Up
8.3 Inspection and Service Disconnect the pressure switch from the siphon tube (copper tubing) (see Figure 23). Jandy Pool Products, Inc. designs and constructs the Lite2 heater to provide long performance life when installed and operated properly under normal condi- 8.2.3 Spring Start-up... -
Page 36: Owner Inspection
Model LJ Pool and Spa Heater Page 33 8.3.2 Professional Inspection AVERTISSEMENT Inspections performed at least once a year by a Une installation ou un entretien inadéquat peut qualified technician are required to maintain your causer la nausée ou l’asphyxie en raison du heater's safe and efficient operation. -
Page 37: Section 9. Troubleshooting
9.2.1 Explanation of Service Codes votre visage loin du brûleur pour éviter tout The LJ controller monitors several functions of risque de blessure. the heater. In the event of a malfunction, the controller... -
Page 38: Resetting The Lj Controller Service Codes
A.Check circuit breakers and power source. operating B. Pump defective B. Replace. C. Incorrectly wired C. Recheck wiring including relay if using LJ controller internal clock. D. Pump relay defective D. Replace pump relay. E. Current time not within E. Set time clock and current time. -
Page 39: Diagnostic
Page 36 LITE2 LJ CONTROLLER HEATER SERVICE DIAGNOSTIC GUIDE SERVICE CODE CAUSE REMEDY 1. Pressure Switch Opened FL 0 A. Pump is not running. A. Turn pump on or check to see that external time (open switch in the clock is synchronized with LJ controller time safety circuit) clock. - Page 40 Model LJ Pool and Spa Heater Page 37 SERVICE CODE CAUSE REMEDY FL 2 (cont'd) (failed ignition) E. Flame sensor circuitry is not E. Ensure that the green wire from well grounded. the 6-pin connector to the power circuit board is tightly attached to the ground screw with a star washer.
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Page 41: Section 10. Professional Maintenance And Service
à LJ However, the reset may take up to 3 minutes. The LJ controller checks the power supply voltage every 3 présentent des dangers, car elles mettent en minutes. -
Page 42: Heater Components And Their Operation
Model LJ Pool and Spa Heater Page 39 EXHAUST VENT TOP FLUE COLLECTOR HEAT EXCHANGER COMBUSTION CHAMBER BURNER BURNER TRAY SHELF FLOW Figure 26. Atmospheric Combustion System open end of a burner. When the gas flows into the used to set pool and spa temperatures. A push- burner, a “negative”... - Page 43 Page 40 CIRCUIT TEST POINTS POWER DISTRIBUTION BOARD TEST POINTS Figure 27. Power and Control Circuit Test Points...
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Page 44: Electrical Troubleshooting
Model LJ Pool and Spa Heater Page 41 Limit Switches - Two limit switches prevent 10.4.2 Controller excessive water temperature - one within the The controller must be operational in order to heat exchanger and one for water leaving the check the control circuits of the heater. -
Page 45: Fuse
Page 42 volts. If there is no voltage, replace the transformer. Clean the heat exchanger and clear the flue and vent To test the 12 volt transformer output, leave the black of any restrictions. Sometimes the fusible link fails due lead of the meter at test point 1 and touch the free to flame roll-out. -
Page 46: Gas Valve Voltage
To troubleshoot the ignition control, connect the board and the board may need to be replaced. voltmeter leads at test points 10 and 11, and set the LJ Listen closely to the gas valve when it is first controller to call for heat. Observe that the normal energized (24V first appears at test point 9 during the ignition sequence takes place. -
Page 47: Ordering Information
High-Limit Switch Cover 10418300 To order or purchase parts for the Lite2 model Fusible Link Assembly R0012200 LJ pool/spa heater, contact your nearest Jandy dealer Fusible Link Bracket 10479900 or distributor. See the Jandy web site at Igniter Box Assembly Kit... - Page 48 Model LJ Pool and Spa Heater Page 45 Model Order Model Order Description Part No. Description Part No. JACKET COMPONENTS OPTIONAL COMPONENTS Door with Latch 125-400 R0343601-05 Noncombustible Base 125-400 10521701-05 Jacket Assembly, Less Top Assembly 125-400 R0343501-05 Pressure Relief Valve 3/4" NPT, 75 PSI...
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Page 49: General Exploded View
Page 46 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 50: Detailed Exploded View
Model LJ Pool and Spa Heater Page 47 11.4 Detailed Exploded View... - Page 51 Page 48 NOTES Jandy® and Aqualink RS® are registered trademarks of Jandy Pool Products, Inc. All other brand names, products names or trademarks belong to their respective holders.
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Page 52: Limited Warranty
DE grids, or cartridge elements; or damage caused by running the pump with insufficient quantities of water. LIMITATION OF LIABILITY: This is the only warranty given by Jandy Pool Products, Inc. No one is authorized to make any other warranties on Jandy Pool Products, Inc.'s behalf. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF FITNESS FOR A PAR- TICULAR PURPOSE AND MERCHANTABILITY.
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