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Jandy Lite2 LJ125 Ceramic Gas Heater

1. 2 1 Introduction Install the Lite2 heaters vent caps and draft hoods in accordance with the procedures in this manual local codes and ordinances and in accor dance with the latest edition of the appropriate na tional code see Section 1 4 Codes and Standards All gas fired products require correct installation to assure safe operation The requirements for pool heaters include the following l Field assembly if required 2 Appropriate site location clearances and flooring Sufficient combustion and ventilation air Properly sized gas meter and piping Proper electrical wiring if required Adequate water flow DH US This manual provides the information needed to meet these requirements Review all application and installation procedures completely before continuing the installation 2 2 Field Assembly The Lite2 heater is shipped from the factory with the top assembly in the low profile configuration for outdoor installation The Lite2 heater is design certified for indoor installation when equipped with a draft hood which must be installed without modifica tion The Lite2 heater is also certified for installation in an outdoor shelter in Canada when equipped with a draft hood An outdoor shelter is an enclosure not normally occupied which does not communicate directly with occupied areas Check the rating plate on the heater or the Parts List Section 11 of this manual for the correct Jandy draft hood or
2. 81 400 101 Figure 1 General Configuration Page 6 _Jandy Avoid placing the heater in locations where it can cause damage by water or condensate leakage If this is not possible provide a suitable drain pan to catch and divert any leakage The pan must not restrict the air flow around the heater All criteria given in the following sections reflect minimum clearances as stated in the national stan dards However each installation must also be evalu ated taking into account the prevailing local conditions such as wind speed and direction proximity and height of walls that may block ventilation or cause downdrafts and proximity to public access areas 2 3 2 Clearances The heater must be placed to provide clearances on all sides for maintenance and inspection There must also be minimum distances maintained from combustible surfaces see Table 2 At least 20 500mm access must be available in front of the heater for burner removal If the heater is to be installed in a garage or similar structure all burners and burner ignition devices must have a minimum 18 457mm clearance above the floor This heater must be installed at least 5 feet 1 3 meters from the inside wall of the pool or spa unless the heater is separated from the pool or spa by a 5 foot high solid fence wall or other permanent barrier Ce chauffe piscine doit tre install 4 au moins 5 pieds 1 52m de la paroi interne de la piscine a moins
3. Inspect flame sensor rod wiring and connections between sensor and power circuit board Refer to qualified personnel Model LJ Pool and Spa Heater Page 37 SERVICE CODE CAUSE FL 2 cont d failed ignition FL 3 flame detected when no flame should exist FL 4 igniter FL 5 brown out FL 6 24V signal to gas valve FL 7 remote operation circuit E Flame sensor circuitry is not well grounded F Low gas supply pressure G Heater is wired incorrectly H Failed sensor Rapidly Cycling Pressure Switch A Airleak in water line or pump B Insufficientback pressure to heater Flame Sensor Error A Flame exists prior to ignition sequence B Failedcontroller Igniter Failure A Igniter circuit is open B Element has a fine crack in it C Igniter fault Brown out Condition A Incoming voltage is too low to safely operate heater B Heater supply voltage is 115V but power conversion plug is plugged in on 230V side Power Module Failure A 24V signal is not being sent to energize the gas valve Remote Operation Circuit A Remote control switch circuit is open Controller is not in remote control mode B Remote control switch circuit is notopen REMEDY E Ensure that the green wire from the 6 pin connector to the power circuit board is tightly attached to the ground screw with a star washer Identify and repair incorrect suppl
4. LECTRIQUES TOL RANCE NOMINALE DE 105 C DOIT TRE EMPLOY SI LE FIL PORTE LE SYMBOLE LE REMPLECER UNIQUEMENT PAR UN FIL POUR APPAREILS LECTRIQUES TOL RANCE NOMINALE DE 200 C CONTROL PANEL FLAME SENSOR GAS VALVE i Y PRESSURE LIMIT SWITCH ae BK Es DNE er O R LIMIT FUSIBLE i fe B BK CONTROLLER JFLAME SENSOR GAS VALVE J SAFETY CIRCUIT om000000 TRANSFORMER AT INSTALLATION REMOVE AND DISCARD THE RED AND BLACK TEST LEADS CONNECTED TO THE POWER IN TERMINALS TO PUMP ON POWER Note Be sure to remove power conversion plug pull the orange tape from the white CIRCUIT BOARD side of the plug rotate the plug to 115 v white side and reinsert it into socket on the PC board a m VA NI AT INSTALLATION REMOVE AND DISCARD THE RED AND BLACK TEST LEADS CONNECTED TO THE POWER IN TERMINALS pee ga n 115v 60Hz wiwi EN BK NP RY A Connection Diagram 115V or 230V i TRANSFORMER PRESSURE 150 F 135 F FUSIBLE SWITCH HI LIMIT HI LIMIT LINK SWITCH SWITCH SENSOR CONTROL PANEL FIREMAN S R IGNITOR SWITCH CONNECTION FLAME SENSOR PUMP RELAY 230V SHOW B Schematic Diagram Optional pump relay Jandy P N R0658100 needed when connecting pump to LJ controller time clock Figure 16 Wiring Connection Diagram and Schematic Diagram
5. If voltage is detected there then the limit switches are closed and are operational Check the voltage going to the water pressure switch Leave the black voltmeter lead in place at test point 2 Touch the free lead of the meter to the terminal of the water pressure switch where the white wire is connected test point D If there is no voltage one of the limit switches is open This is normally due to excessive water tem perature which should be thoroughly investigated before replacement of limit switches Excessive water temperature may be caused by low water flow Water flow deficiency may be due to obvious problems such as a defective pump or blocked water filter Alterna tively excessive water temperature may be due to over firing or to a problem with the water piping or the heater s internal bypass control Over firing might be a result of an incorrect gas orifice or supply of propane gas to a heater intended for natural gas If there are no such fundamental problems identify which of the switch is open by temporarily connecting a jumper wire across its terminals Replace a defective limit switch Limit switch access is through the limit switch cover on the side of the heater to which water pipes are connected Note that the limit switches have different trip points and it is important that replacements are correct The 150 F switch has a red dot on the top of the brass fitting and must be installed in the lower horizontal
6. Includes set of 9 gaskets All R0058300 aid 1n parts identification Please refer to these pages 46 Return Header Bronze Includes set of 9 gaskets All R0054600 47 Header Bolt Assembly Set of 8 All R0057000 when ordering parts for your Lite2 pool spa heater a So da 2 ie Al EDOAGIDO 49 Washer for Headers All F0011100 50 Nut for Headers All F0003100 51 Header Gasket Assembly Set of 18 All R0050800 Key Model Order 52 Flange amp Gasket Assembly Set of 2 All R0055000 TT 53 Flange 2 All 10573500 RS NIU a OS 54 Flange Gasket 2 All S0078000 54 Flange Gasket 1 1 2 2 All S0078100 MAIN GAS ASSEMBLY 55 Flange Sleeve 2 All S0078200 56 Flange Bolt All F0031700 1 Burner Tray Assy NAT 125 400 R0383601 05 57 Rubber Grommet for Drain Plug All R0316300 1 Burner Tray Assy LPG 125 400 R0383701 05 58 Grommet Sealing 2 All 50116200 2 Burner Tray Shelf Only 125 400 R0317001 05 59 Brass Connector Body All P0019701 3 Gas Valve NAT All R0317100 60 Brass Drain Plug 1 4 All P0026800 3 Gas Valve LPG All R0319600 61 Brass Plug 3 4 All P0027000 4 Anti Rotation Bracket All 10835900 62 By Pass Assembly w o spring Iron Cap All R0013100 5 Burner Assy With Flame Sensor All R0334300 62 By Pass Assembly with spring Bronze Cap 125 400 10701401 05 6 Burner Main All L0052300 63 By Pass Valve Rod All S0079800 7 Manifold Assy Nat Gas 0 3K ft 125 400 R0405801 05 64 Brass Nut For Rod All F0048400 7 Manifold Assy Nat Gas 3 6K ft 125 400 R0405901
7. are listed in Table 5 NOTE The maximum inlet gas pressure must not exceed the specified value The minimum value listed is for the purpose of input adjustment Refer to Table 5 Before operating the heater test the complete gas supply system and all connections for leaks using a soap solution Do not use an open flame Page 12 _Jandy CAUTION Some leak test solutions including soap and water may cause corrosion or stress cracking Rinse the piping with water after testing A ATTENTION Certaines solutions d essai d tanch it y compris l eau et le savon peuvent causer de la corrosion ou de la fissuration Rincez les tuyaux l eau apres l essai d tanch it 4 2 Manifold Pressure Confirm that gas supply pressure is correct If the gas supply pressure 1s less than required check for undersized pipe between the meter and the heater a restrictive fitting or an undersized gas meter Gas supply pressures to the heater when it 1s operating are listed in Table 5 CAUTION Manifold gas pressure for the Lite2 LJ natural gas heaters should be set at 4 WC Propane heaters should be set to 9 WC ATTENTION La pression du collecteur de pression pour les systemes de chauffage au gaz naturel devrait tre de 4 WC Pour les syt mes de chauffage au gaz propane devrait tre de 9 WC The manifold pressure may be checked by connecting a manometer to the pressure port on the outlet side
8. d tre isol de la piscine par une cl ture un mur ou autre barri re permanente 2 3 3 Flooring The heater must be installed on a level surface of noncombustible construction or on fire resistant slabs or arches Noncombustible flooring is defined as flooring material and surface finish not capable of being ignited and burning and with no combustible materials against the underside Acceptable materials are those consisting entirely of a combination of steel iron brick tile concrete slate glass or plaster Do not install the heater directly on a combustible wood or Table 2 Minimum Heater Clearances From Combustible Surfaces OUTDOOR INSTALLATION carpet floor without placing a noncombustible platform between the floor and the heater The heater can be installed on a combustible floor if anoncombustible base assembly available from Jandy is used See the heater rating plate or the Parts List Section 11 of this manual for the appropri ate base part number Heaters must never be installed directly on carpeting As an alternative to the Jandy noncombustible base plate in the United States the National Fuel Gas Code allows a heater to be placed on a combustible surface when there is a platform under the heater made of hollow masonry no less than 4 inches 102 millimeters mm thick covered with sheet metal at least 24 gauge thick and extending beyond the full width and depth of the heater by at least 6 inches 153
9. gt gt Gast MODE 2 Press the ENTER key The temperature indica tor in the lower left corner of the display will start to flash EE gt gt ENTER WX 102 F ud RO 3 Press the UP or DOWN key to adjust the desired temperature Mo pot Zr UP DOWN 4 When the temperature is set to your preference press the ENTER key The temperature indicator will stop flashing and the word NORMAL will appear in the upper left corner of the display screen to indicate that the desired spa tempera ture has been set and the heater is now in normal Operating mode E ij gt ENTER NORMAL 7 2 4 Setting the Freeze Temperature The pump must be controlled by the heater s internal time clock for the freeze protection to operate pump wired to an optional internal relay The LJ controller will protect your pool and spa equipment from damage due to freezing for short periods of time Once the FREEZE TEMPERATURE is set and the heater is in the OFF mode the pump will automati cally start when the water temperature drops to the FREEZE TEMPERATURE The pump will shut off when the water has warmed to 2 above the FREEZE TEMPERATURE NOTE The temperature set range for the FREEZE TEMPERATURE is 34 F 1 C to 42 F 5 C If an attempt is made to set a temperature outside of this range the words INVALID COMMAND will appear on the left side of the display To set the heater to the desired FREEZE TEM
10. mm DR om Notes 1 These numbers are for natural gas 0 65 Sp Gr and are based on 1 2 inch 13mm water column pressure drop Check supply pressure with a manometer and local code requirements for variations For liquefied petroleum gas reduce pipe diameter one size but maintain a 3 4 inch 19mm minimum diameter Check supply pressure and local code requirements before proceeding with work Pipe fittings must be considered when determining gas pipe sizing plate Jandy Lite2 LJ heaters as shipped from the factory are certified to operate within the altitude range indicated on the rating plate If a field conversion to a different altitude range should be necessary manifold kits are available for changing the altitude range of the heater See Table 1 in section 1 7 1 of this manual to deter mine the correct altitude designation for your heater Refer to Section 11 Parts List to order the correct part number of the manifold kit needed When changing the altitude range of the heater be sure to fill out the altitude conversion label included in the kit Apply the label on the inner panel of the heater next to the original rating plate CAUTION Permanent damage to the gas valve will occur if the following procedures are not followed MANUAL SHUT OFF CI X EN GAS SUPPLY GAS PIPE UNION T FITTING N a MINIMUM PIPE 3 76mm NIPPLE REMOVABLE 7 CAP TO HEATER INLET Figure 6 The proper d
11. 4 3 4 Fusible Link Check the voltage going to the safety circuit Leave the black voltmeter lead in place at test point 2 Touch the free lead of the meter to the safety circuit of the six pin connector where the red wire is attached at the lower left corner of the connector test point 7 The meter should read 20 28 volts If there is no voltage there may be a bad connection on the power distribution board and the board may need to be replaced If voltage is detected at test point 7 move the free lead of the meter to the terminal of the fusible link where the white wire is connected test point C If no voltage is detected at test point C the fusible link has failed This indicates higher than normal temperatures in the component compartment vestibule Normal component compartment tempera ture is well below 300 F The fusible link is designed to fail at temperatures above 305 F Excessive tempera ture might be due to a blocked flue or heat exchanger Clean the heat exchanger and clear the flue and vent of any restrictions Sometimes the fusible link fails due to flame roll out Flame roll out may be caused by delayed ignition or downdrafting in windy areas Thoroughly investigate the causes for flame roll out and correct the problem when replacing the fusible link 10 4 3 5 Limit Switches Since the limit switches are not easily accessible you can check the voltage going into the component after the limit switches in the circuit
12. ATTENTION Insulation must be a minimum of 1 thick L echangeur de chaleur est lourd ll peut tre n cessaire d avoir besoin d aide pour enlever et remplacer l changeur de chaleur 24 Double check to make sure the wiring is not pinched against sharp edges or resting on the flue collector assembly 12 Lift the heat exchanger assembly out of the 25 Reinstallrain shield assembly heater Reinstall heat exchanger 180 degrees inlet outlet header left from it s original position 26 Replace the top assembly Make sure the tabs 13 After replacing the heat exchanger into the heater the end baffles must be replaced Each METHOD FOR INSTALLING one is held in place by two screws which mount ANY 2 NPT THREADED PIPE to the top of the combustion chamber wall Reinstall the baffles on the front and rear of the heat exchanger before continuing with the Reversible Water Connections procedure 14 Remove pressure switch retainer plastic cable clamp from the inner panel allow pressure FOR NONTHREADED switch to float PIPE OR TUBE DISCARD PLASTIC SLEEVE 15 Reroute pressure switch tube and thermostat bulb assembly through hole in left side of vesti bule cover in reverse order Relocate the pres sure switch tube and temperature sensor through the open side of the vestibule 16 Reinstall the temperature sensing bulb in the header and fasten it with the retainer bracket and screw 17 Reinstall the compression fitting a
13. Florida it is required that the heater be se curely fastened to the equipment pad Use a size 1 4 x 1 1 2 long stainless steel Tapcon type concrete screw and washer at each of the four tabs located at the base of the heater Mounting the applicance in this manner meets the applicable requirements of the Florida Building Code Mounting screws are not provided with this heater After placing the heater on the equipment pad drill a hole in the concrete at each of the four tabs on the feet of the heater The correct size drill bit 1s usually provided with the concrete screws when purchased Place a screw and washer in each of the holes and fasten the heater to the equipment pad see Figure 4 Do not over torque the screws WASHER VAN NN Figure 4 Anchor Heater to Equipment Pad CONCRETE EQUIPMENT Page 8 _Jandy 2 3 5 Indoor and Outdoor Shelter supply for proper combustion and ventilation of the Installations surrounding area as outlined in the latest edition of An outdoor shelter Canada only is an unoccu ANSI standard 2223 1 or in Canada CAN CSA pied enclosure which does not communicate directly B149 1 and any local codes that may be applicable with occupied areas All indoor installations and In general these requirements specify that the outdoor shelter installations require the addition of a room in which a heater is installed should be provided factory approved draft hood The draft hood must be with two pe
14. JE r AMPS J3 5 1S FIREMAN mirje SWITC SOW POWER IN SELECT PLUG TO TRANSFORMER mei J A A J amp EXT FOWER HEC ae HOT zWRFACE NITER sear 19 t Figure 27 Power and Control Circuit Test Points Model LJ Pool and Spa Heater Page 41 5 Limit Switches Two limit switches prevent excessive water temperature one within the heat exchanger and one for water leaving the heater If either senses excessive temperature burner operation is interrupted 6 Water Pressure Switch This control senses whether or not water is available to the heater by measuring back pressure inside of the heat exchanger If the pool water pump fails or the water filter is blocked the pressure switch prevents operation of the burner 7 Fusible Link This is a single use switch which detects abnormal temperature in the component vestibule It is a fusible link which is held to the inner panel just above the burner tray by a sheet metal bracket Excessive temperature in the component compartment possibly due to a blocked flue or flame roll out will cause the link to fail This opens the safety circuit which shuts off the gas valve and shuts the heater down 10 4 Electrical Troubleshooting This section describes procedures for checking the electrical power and control components of the heater one at a time and in the order they appear in the control circuit Note Pump must be running during the troubleshooting pro
15. This feature makes it easy to switch between heating the pool and heating the spa by eliminating the need to change the thermostat setting to the desired temperature each time the switch is made NOTE The temperature set range for both the POOL and SPA settings is 70 F 21 C to 104 F 40 C If an attempt is made to set a temperature outside of this range the words INVALID COMMAND will appear on the left side of the display Model LJ Pool and Spa Heater Page 23 To set the POOL WATER TEMPERATURE perform the following steps 1 Press the MODE key repeatedly until the words POOL SET appear at the top of the display screen poe gt gt Gos MODE 2 Press the ENTER key The temperature indica tor in the lower left corner of the display will start to flash EE gt gt ENTER Kl BU Ap 3 Press the UP or DOWN key to adjust the desired temperature vl Et 2 2 UP DOWN 4 When the temperature is set to your preference press the ENTER key The temperature indicator will stop flashing and the word NORMAL will appear in the upper left corner of the display screen to indicate that the desired pool tempera ture has been set and the heater is now in normal operating mode EE gt gt ENTER NORMAL To set the SPA WATER TEMPERATURE perform the following steps 1 Press the MODE key repeatedly until the words SPA SET appear at the top of the display screen poe
16. WARRANTIES OF FITNESS FOR A PAR TICULAR PURPOSE AND MERCHANTABILITY JANDY POOL PRODUCTS INC EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL INCIDENTAL INDIRECT OR PUNITIVE DAMAGES FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY This warranty gives you specific legal rights You may also have other rights which vary by state or province WARRANTY CLAIMS For prompt warranty consideration contact your dealer and provide the following information proof of purchase model number serial number and date of installation The installer will contact the factory for instructions regard ing the claim and to determine the location of the nearest designated service center If the dealer is not available you can locate a service center in your area by visiting www jandy com or by calling our technical support depart ment at 707 776 8200 extension 260 All returned parts must have a Returned Material Authorization number to be evaluated under the terms of this warranty Jandy Pool Products Inc 6000 Condor Drive Moorpark CA USA93021 707 776 8200 FAX 707 763 7785 1758 Corporate Circle Petaluma CA94954 707 776 8200 FAX 707 763 7785 Litho in U S A Jandy Pool Products Inc 0507 andy
17. any parts that are not in good and serviceable condition with new parts before completing the pool heater installation SECTION 4 Gas Connections 4 1 Gas Supply and Piping Review the following general instructions before continuing the installation WARNING The Jandy Lite2 model LJ pool and spa heaters are designed for use with either natural gas or LP gas Check the rating plate on the inner panel to be sure that the heater is designed to use the type of gas being supplied DO NOT ATTEMPT TO CONVERT THIS HEATER FOR USE WITH ANY OTHER TYPE OF FUEL AVERTISSEMENT Les appareils de chauffage Jandy Lite2 mod le LJ pour piscines et cuves thermales sont con us pour tre utilis s avec du gaz naturel ou du gaz de p trole liqu fi GPL V rifiez l information inscrite sur la plaque signal tique du panneau int rieur pour vous assurer que l appareil est concu pour le type de gaz fourni NE PAS ESSAYER DE CONVERTIR CET APPAREIL UN AUTRE TYPE DE GAZ 1 Gas piping installation must be in accordance with the latest edition of ANSI Z223 1 and all local codes In Canada the installation must be in accordance with CAN CSA B149 1 and all local codes that apply 2 Check the gas supply to be sure that it is the same as the gas indicated on the heater s rating Model LJ Pool and Spa Heater Table 4 Natural Gas Pipe Size Requirements Distance from Gas Meter 0 50 feet 50 100 feet 100 200 feet Size aT m
18. closed valve in system T Heater condensing A Low water temperature A Flue product moisture will condense at the start up until the B Heater plumbed backwards heater water temperature reaches the normal operating conditions B Correct plumbing 8 Igniter lights but A Gas valve not at on position main burners B Air in gas line will not come on C Gas valve failed To clear the FL2 service code turn off the heater by using the SELECT key to turn the heater to the OFF position and then turn it back to either POOL or SPA The heater will now go back to the normal operating mode If there is a call for heat the heater will attempt ignition again If the ignition fails again contact a qualified technician to check the heater All other service codes will need the attention of a qualified technician to resolve the problem 9 2 2 Resetting LJ Controller Service Codes The LJ controller will display service codes to help in identifying fault conditions that effect the operation of the heater see Section 9 2 1 There are four service codes that will reset automatically once the fault condition has been re solved Turn knob to on position B Cycle ignition sequence until air is out of the gas line C Replace gas valve Service code FLO open switch in the safety circuit will reset after the open switch has been reset or replaced The display will show the normal operat ing icons NOTE If the p
19. control which has been under water OPERATING INSTRUCTIONS 1 gt m pi STOP Read the safety information above on this label Set the thermostat for Pool and Spa to 70 F 21 C and the controller mode to OFF Turn off all electric power to the appliance This appliance is equipped with an ignition device which automatically lights the heater Do not try to light the burners by hand Remove the heater door Turn gas control knob clockwise to OFF Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information above on this label If you don t smell gas go to next step Turn gas control knob counterclockwise A to ON Replace control access panel DIRECTION OF GAS FLOW Turn on all electric power to appliance Set thermostat to desired settings for Pool and Spa and change the controller mode from OFF to either POOL or SPA If the appliance will not operate check that the filter pump is on the filter is clean and water is flowing to the pool Otherwise follow the instructions To Turn Off Gas To Appliance and call your service technician or gas supplier GAS CONTROL IN OFF POSITION TO TURN OFF GAS TO APPLIANCE Set the thermostat for Pool and Spa to 70 F 21 C and the controller mode to OFF Turn off all electric power to the appliance if service is to be perfor
20. enable operation It is also a positive pressure regulator It regulates the gas pressure in the manifold to specifications 3 Igniter The hot surface igniter is a ceramic addressed earlier in this manual This is neces composite element which becomes very hot sary for proper operation of the burner system when electrical power is applied to it The hot surface igniter directly ignites the air gas mixture 2 LJ Temperature Control Ignition Control insh conibusGos chamber Combination System a Temperature Control The Jandy LJ 4 Flame Sensor The flame sensor is the elec controller is an electronic control which senses trode through which the ignition control detects water temperature by means of a thermistor and rectification of current passed thr ough the controls heater operation to bring the water to the flame Inadequate rectification indicates an temperature selected It has an option for two unsatisfactory flame condition The ignition separate thermostat settings which are typically control responds to the flame signal provided by the flame sensor Page 40 _Jandy CIRCUIT TEST POINTS PRESSURE SWITCH T 0 LIMIT FUSIBLE LINK CONTROLLER FLAME SENSOR JGAS VALVE SAFETY CIRCUIT POWER DISTRIBUTION BOARD TEST POINTS eun Ple D SDLIDYME CORPEP TC2k POWER mre Te F g TO CONTROLLER TENZOR E FLAME S n UE mie GAS ver m m GA SAFE T amp 6 JE er COM MO
21. flows into the burner a negative pressure is created at the opening used to set pool and spa temperatures A push of the burner This negative pressure pulls air into the button selector key is used to switch between burner with the gas and mixes the two together As settings the gas air mixture flow through the burner ports it is b Ignition Control The ignition control is ignited in the combustion chamber Hot combustion integrated with the temperature control It products then raise through a highly efficient heat provides energy for ignition of the air gas mix exchanger Combustion products then enter a flue ture monitors the flame and controls the gas collector and are directed to the outdoors through the valve When the temperature control requires grate top of the heater or a vent pipe and cap heat the ignition control provides a pre purge of the combustion chamber Then it applies electri cal power to a hot surface igniter When the igniter is hot enough the ignition control opens the gas valve It has sophisticated means to sense ignition and flame condition so that un burned gas will not escape After the burner is shut off the ignition control continues operation to provide a post purge period 10 3 Heater Components and Their Operation 1 Gas valve Regulator The gas valve controls gas flow into the manifold It provides flow only when the temperature controls require heat and only if all safety controls
22. in the warranty coverage The warranty does not cover damage caused by improper assembly installation operation or field modification Also damage to the heat exchanger by corrosive water is NOT covered by the warranty See Section 8 1 for maintaining proper pool water chemis try NOTE Keep this manual in a safe place for future reference when inspecting or servicing the heater 1 4 Codes and Standards The Lite2 pool and spa heater is design certified by CSA Canadian Standards Association as comply ing with the latest edition of the Standard for Gas Fired Pool Heaters ANSI Z21 56 in the USA and CSA 4 7 in Canada All Jandy heaters must be installed in accordance with the local building and installation codes as per the utility or authorities having jurisdiction All local codes take precedence over national codes In the absence of local codes refer to the latest edition of the following national codes for installation 1 Inthe United States The National Fuel and Gas Code ANSI Z223 1 Pay special attention to the Chapter covering Venting of Equipment 2 In Canada Natural Gas and Propane Installation Code CAN CSA B149 1 Any changes to the heater gas controls gas orifices wiring draft hood vent cap or improper installation may void the warranty If change is required to any of the above consult the factory 1 5 Technical Assistance Consult Jandy Pool Products Inc or your local Jandy
23. is directed safely away from any public areas and away from any area occupied during servicing 5 7 Auxiliary Components Chlorinators Ozone Generators and Sanitizing Chemicals The Lite2 heater is manufactured with materials that are not compatible with high concentrations of ozone chlorine bromine or other sanitizing chemicals Heater damage caused by excessive chemicals or improper ozonization is not covered by the Jandy Pool Products Inc warranty Be sure to adhere to the following When ozone is injected upstream of the heater install an offgas mixing chamber or an ozone bypass system between the heater and the ozone injector to prevent ozone and air from entering the heater When chemical feeders are used plumb the feeder downstream of the heater and install an in line check valve between the heater and the feeder a minimum of 18 is required between the heater and the check valve Model LJ Pool and Spa Heater Page 17 Never deposit chemicals directly in the pool skimmer SECTION 6 Electrical WARNING ELECTRICAL SHOCK HAZARD This heater contains wiring that carries high voltage Contact with these wires may result in severe injury or death AVERTISSEMENT POSSIBILIT DE CHOCS LECTRIQUES Ce syst me de chauffage contient du filage de haut voltage Un contact avec ces fils peut r sulter en des blessures s rieuses ou la mort CAUTION Label all wires prior to disconnec
24. minutes Record the new temperature reading heated water Page 30 _Jandy 13 Subtract the first temperature reading cold water from the second temperature reading heated water The difference between the two readings is the temperature rise The tempera ture rise should be within the range shown in Table 7 Table 7 Temperature Rise and Minimum Flow Rates Minimum Minimum Maximum mA r ce 14 Ifthe temperature rise is below the minimum range indicated two possibilities arise a The supply gas volume is too low b The system s water flow exceeds 125 GPM 475 LPM and requires a manual bypass valve for proper operation Install a manual bypass see Figure 7 and proceed to Section 7 8 15 If the temperature rise is above the maximum there is not enough water flowing through the heater Check for clogging in the water filter or restriction in the water pipes CAUTION Operating the heater with the temperature rise above maximum or below the minimum can damage the heater and may void the warranty ATTENTION Op rer le chauffe piscine au dessus du niveau de temp rature maximale ou sous le niveau de temp rature minimale recommand e peut endommager le chauffe piscine et ainsi annuler la garantie 16 If the temperature rise is within the correct range complete the procedure as follows a Set the controller to OFF by repeatedly depressing the SELECT key until the display
25. of the valve You will need to remove the 1 8 NPT protective plug from the port and install the appropriate 1 8 NPT fitting to connect your manom eter The pressure will be zero when the heater is not running When the heater 1s operating the manifold gas pressure should be 4 0 WC for natural gas heaters and 9 0 WC for LP gas heaters To adjust the manifold gas pressure first remove the slotted cap on the top of the gas valve to the right of the control knob Under the slotted cap is a slotted plastic screw which increases the manifold pressure when turned clockwise and decreases the manifold pressure when turned counterclockwise After measurements and adjustments if neces sary have been made make sure to replace the 1 8 NPT plug on the manifold pressure ports and the cap on the manifold pressure adjustment screw It is extremely important to replace these parts before leaving the installation Failure to do so can result in damage to property or injury or death With the heater firing the pressure must be within the range shown in Table 5 Also check the pressure with the heater off 4 3 Special Precautions for Propane Gas LP Gas is heavier than air and can therefore more readily collect or pool in enclosed areas if provision for proper ventilation is not made Installation of pool heaters in enclosed areas such as pits is not recommended However if such an installation 1s required be sure to pay special attention to p
26. point of the roof or other object that is within ten 10 feet 3 0 m of the vent termination The vent pipe must have a listed vent cap which allows a full equivalent opening for flue products see Figure 5 The top of the vent cap must be at least five feet in vertical height above the draft hood outlet Type B double wall or equivalent vent pipe is recommended However single wall metal vent pipe may be used as specified in the latest edition of the National Fuel Gas Code ANSI Z223 1 or in Canada CAN CSA B149 1 IMPORTANT NOTE Do not use sheet metal screws at the snap lock joints of Type B gas vents When venting multiple appliances through one common duct each appliance must have it s own exhaust vent temperature limit switch All vent temperature limit switches must be wired in series so as to prevent all appliances from firing in the event that any vent opening becomes blocked Refer to ANSI Z223 1 in the United states or CAN CSA B149 1 for more information on multiple venting 3 2 3 Inspection and Replacement of Existing Vent Systems with New Components If the Lite2 is being installed to replace an existing pool heater it is recommended that a new appropriate venting system be installed with the new heater However if an existing venting system must be used be sure to carefully inspect the venting system to ensure that it is in good condition and continues to be appropriate for the Lite2 heater Replace
27. proceeding with the installa tion Consult the Jandy factory or local factory representative with any questions regarding this equipment Certain sections of this manual are specific to either United States or Canadian installations and are labeled as such The Lite2 LJ heater gets electrical power from an external 115VAC or 230VAC source and provides a dual electronic thermostat control system for pool spa combinations or preheat convenience The Lite2 LJ heater is specifically designed for heating fresh water swimming pools and spas Do not use it as a general service water heater There is a specially designed model of Lite2 for heating salt water pools Consult your dealer for the appropriate Jandy products for these applications 1 2 Consumer Information and Safety The Lite2 pool spa heater is designed and manufactured to provide many years of safe and reliable service when installed operated and main tained according to the information in this manual and the installation codes referred to in later sections Throughout the manual safety warnings and cautions are identified by the symbol Be sure to read and comply with all of the warnings and cautions 1 2 1 Spa Hot Tub Safety Rules WARNING The following Safety Rules for Hot Tubs recommended by the U S Consumer Product oafety Commission should be observed when using the spa AVERTISSEMENT Les R glements suivants pour Cuves Thermales tel que recomm
28. the structure should not overhang the heater more than 12 inches 0 30 m The area under the overhang must be open on three sides This prevents combustion gases from being diverted into living areas through doors windows or gravity inlets Ne pas installer ce chauffe piscine sous une saillie mesurant moins de 3 pi de hauteur La partie sous la saillie doit tre ouverte sur 3 c t s If the heater is installed close to a structure protect it from rain water runoff with rain gutters on the roof or other measures Do not locate the heater near irrigation sprinkler systems that could spray water Distance from heater to door window or other opening to living structure Dimension A USA 4 ft 1 2m Minimum CANADA 10 ft 3 05 m Minimum Distance from heater to forced air inlet or other vented opening Dimension B USA and CANADA May be any distance if dimension C is 3 ft 0 9 m or more Dimension B USA and CANADA Must be at least 10 ft 3 05 m if dimension C is less than 3 ft 0 9 m Figure 3 Outdoor Heater Installation on it Water from sprinklers may cause damage to controls and electronic components Avoid locations where wind deflection off nearby structures might cause downdraft conditions Where downdraft conditions exist locate the heater at least 3 feet 0 91 m from vertical surfaces e g nearby buildings and walls The addition of a vent cap may be necessary In
29. well in the header The 135 F switch has no dot and must be installed in the upper vertical well in the header 10 4 3 6 Water Pressure Switch If voltage is detected at test point D move the free lead of the meter to the terminal of the water pressure switch where the white wire is connected test point E If there is no voltage the pressure switch contacts are open This is almost always due to a water flow deficiency the most common one being a blocked water filter or defective pump However sometimes it is due to blockage of the copper siphon loop tube or mis adjustment of the switch Investigate thoroughly referring to Section 7 6 on Adjusting the Pressure Model LJ Pool and Spa Heater Page 43 Switch f there is no problem with the pool system or pressure switch adjustment replace the pressure switch If test point E shows 24V move the free lead of the meter to the safety circuit of the six pin connector where the black wire is attached at the lower right corner of the connector test point 8 If there is no voltage at test point 8 then the connection from the pressure switch to the power distribution board is bad Replace the six pin connector 10 4 3 7 Gas Valve Voltage Check the voltage going to the gas valve Leave the black voltmeter lead in place at test point 2 Touch the free lead of the meter to the gas valve terminal where the brown wire is attached at the center position of the right side of th
30. which component is preventing operation Check points are indicated on Figure 27 The recommended procedure steps through each circuit in a sequential way and each section assumes that components from all previous sections have been tested and are opera tional However verifying voltage at any of the numbered points in that circuit confirms that all prior components of the circuit are operational Experienced technicians may be able to shorten the process by going directly to one of the intermediate major test points For example if 24 volts is measured at test point 8 then all components in the circuit prior to test point 8 fireman switch and entire safety circuit are operational 10 4 3 1 Transformer To check the 24 volt transformer output attach the black lead of the voltmeter to the transformer connector where the blue wire enters near the center of the connector test point 1 on Figure 27 You will need to push the voltmeter lead into the back of the connector along side of the wire pin Touch the free lead of the meter to the transformer connector where the second blue wire is attached at the end of the connector test point 2 The meter should show 20 28 Page 42 _Jandy volts If there is no voltage replace the transformer To test the 12 volt transformer output leave the black lead of the meter at test point 1 and touch the free lead of the meter to the transformer connector where the white wire is attached test
31. 05 65 By Pass Valve Disc All R0011500 7 Manifold Assy Nat Gas 6 10K ft 125 400 R0406001 05 66 By Pass Valve Control Cap Iron All 10452200 7 Manifold Assy L P Gas 0 5K ft 125 400 R0406101 05 66 By Pass Valve Control Cap Bronze All 10557400 7 Manifold Assy L P Gas 5 10K ft 125 400 R0406201 05 67 Control Cap Bolts 2 Required All F0041600 68 By Pass Valve Spring Purple 125 S0079900 ELECTRICAL SYSTEM 68 By Pass Valve Spring White 175 S0061400 68 By Pass Valve Spring Red 250 S0061300 8 Heater Control Assembly All R0366200 68 By Pass Valve Spring Blue 325 S0061200 9 High Voltage Assembly All R0366500 68 By Pass Valve Spring Black 400 S0070100 10 Transformer with Wiring Harness All R0366700 69 By Pass Valve Gasket All R001 1400 11 Power Control Board All R0366800 70 Heat Exch Tube Assy Incl set of 18 gaskets 125 400 R0018101 05 12 115 230 VAC Conversion Plug All R0366900 71 Heat Exchanger Baffle 8 Required 125 400 10697401 05 13 Bezel All S0069800 72 Baffle Retainer All S0083900 14 Temperature Sensor All R0367000 73 Heat Exchanger Support Clip 2 Required All 10457000 15 Gasket Temperature Sensor All E0237700 74 Flow Restrictors 2 Required 125 S0000300 16 Temperature Sensor Retainer Bracket All 10447300 75 Heat Exchanger End Baffles 2 Required 125 400 R0332301 05 17 Retainer Bracket Screw All F0009100 18 Pressure Switch amp Siphon Loop Assembly 2 PSI AII R0097600 19 Pressure Switch 2 PSI All R0013200 FIREBOX COMPONENTS 19 P
32. 2 model LJ pool heater using Jandy Pool Products Inc service procedures Before calling for service however the owner should check for obvious problems The other components in the pool system including pump filters and strainers water valves gas supply electrical power and time clocks have an effect on heater operation Confirm that the LJ heater control is set to POOL or SPA and that the corresponding tempera ture limit is set high enough to make the heater oper ate Make sure the pump is operating that the filter 1s clean and strainers are not clogged that there are no mis positioned water valves that the gas or electric power supplies are not shut off and that time clocks are properly adjusted Also be sure that there is no blockage of the vent or louvers which supply combus tion air to the burners 10 2 Natural Draft Combustion System The Lite2 model LJ pool heater has an atmo spheric combustion system This system is illustrated in Figure 26 As the heated exhaust gases rise out of the combustion chamber flow is created through the system and fresh combustion air is drawn into the heater through the louvers cut into the front and sides of the heater Gas is forced through an orifice into the Model LJ Pool and Spa Heater Page 39 EXHAUST VENT TOP FLUE COLLECTOR HEAT EXCHANGER COMBUSTION CHAMBER BURNER TRAY SHELF Figure 26 Atmospheric Combustion System open end of a burner When the gas
33. 35 SECTION 10 Professional Maintenance andService 10 1 General Information 38 10 2 Natural Draft Combustion System 38 10 3 Heater Components and Their Operation 39 10 4 Electrical Troubleshooting 41 10 4 1 Electrical Power Supply 41 10 4 2 Controller ooucretesetvatasatutevesttuc va Savi nu 41 10 4 3 Control Circuit Troubleshooting 41 10 4 3 1 Transformer 41 1943 2 RISO MI 42 10 4 3 3 Fireman Switch and External Interlocks 42 10 4 3 4 Fusible Link 42 10 49 5 MES MICNES esee net dpubbE PERDE TAE RE MERE 42 10 4 3 6 Water Pressure Switch 42 10 4 3 7 Gas Valve Voltage 43 10 4 3 8 Igniter Ignition Control 43 SECTION 11 ReplacementParts Ordering Information 44 PariS LISE inen cut esoten tad RR EI UN 44 General Exploded View 46 Detailed Exploded View 47 Warran y NN RS Back Cover Model LJ Pool and Spa Heater Page 1 SECTION 1 General Information 1 1 Introduction This manual provides installation and operation instructions for the Lite2 Model LJ pool and spa heaters Read these installation and operation instruc tions completely before
34. 4 Figure 24 Main Burner Flame 10 Perform a temperature rise test in accordance with Section 7 7 11 Return the pool temperature control to the desired temperature Repeatedly depress the MODE key until the indicator at the top of the display shows POOL SET Then use the UP and DOWN keys to set the heater to the desired temperature NOTE Keep this manual in a safe place for future reference by you and your professional technician when inspecting and servicing the heater SECTION 9 Troubleshooting 9 1 General Heater Troubleshooting The table on the following page lists some of the more common problems causes and solutions encoun tered when running the heater Most problems occur when the heater is being started for the first time after installation or at Spring start up Careful installation and maintenance will help ensure years of trouble free use from your Lite2 pool heater 9 2 LJ Controller Service Codes 9 2 1 Explanation of Service Codes The LJ controller monitors several functions of the heater In the event of a malfunction the controller will display a service code where the inlet tempera ture is usually displayed and a service icon in the middle of the display See Figure 25 for appearance and location of typical service code display kun X SERVIC DFE Vie P PUMP Figure 25 Typical Service Code Display POOL OFF SPA The service codes are listed on the following pages Onl
35. 4 ANSI Z223 1 In Canada refer to the National Standard CAN CSA B149 1 which differs from this table SECTION 3 Note If using screens and or metal louvers compensate by adding Venting 5096 additional area to each opening If using wood louvers each opening must be at least four times the area indicated in the table above 3 1 Combustion Air Supply The heater location must provide sufficient air 10 ft VENT TERMINATED AT t 8 05 mj ORUM ia aia WITHIN 10 3 05 m 2 ft 0 6 m STORM COLLAR DUCTED OPENINGS 4 ROOF JACK 1 4 in 6 35 mm MINIMUM PITCH PER FOOT OF HORIZONTAL PIPE OUTLET AIR DUCT DRAFTHOOD al ADEQUATE ADEQUATE AIR SUPPLY AIR SUPPLY TO ROOM TOP AND BOTTOM REFER TO TABLE 3 INLET AIR DUCT s 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 5 Indoor Installation Venting USA or Outdoor Shelter Canada Model LJ Pool and Spa Heater Page 9 not recommend indoor installations that do not provide combustion air from outside the building All outdoor shelter installations Canada only must have uninterrupted openings to outside air for combustion and ventilation The installation must be in accordance with the latest edition of CAN CSA B149 1 Jandy Pool Products Inc does not recom mend outdoor shelter ins
36. 42 77 4 BURNERTRAY SEENEXTPAGE 11 3 General Exploded View FORDETAIL Page 46 Page 47 Model LJ Pool and Spa Heater 11 4 Detailed Exploded View Page 48 _Jandy 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 H0248900E Model LJ Pool and Spa Heater Page 49 LIMITED WARRANTY Thank you for purchasing Jandy pool and spa products Jandy Pool Products Inc warrants all parts to be free from manufacturing defects in materials and workmanship for a period of one year from the date of retail purchase with the following exceptions e AquaLink RS units installed with Jandy Surge Protection Kits will be covered for two years NeverLube valves are warranted for the life of pool and or spa on which they were originally installed This warranty is limited to the first retail purchaser is not transferable and does not apply to products that have been moved from their original installation sites The liability of Jandy Pool Products Inc 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 This warranty does not cover failures or malfunctions resulting from the following 1 Failure to properly insta
37. 60 Hz AC field electrical supply To use 115 Volt 60 Hz AC requires a different wiring configuration for the pump This must be done by a certified electrician only as with all wiring To wire the heater and pump for 115V 60 Hz AC follow the alternate 1 15V wiring method depicted in Figure 16 The ends of the power conversion plug are color coded The blue end of the plug is intended for use with a 230 VAC power supply and the white end of the plug is intended to be used with a 115 VAC power supply The power conversion plug on the power circuit board see Figure 16 must be removed from the board the orange tape must be removed from the white end of the plug and then the white end inserted into the receptacle on the power circuit board This will convert all power in the heater to 115 VAC To wire the Lite2 model LJ heater to a 115 V or 230 V 60 Hertz Hz electrical source 1 Be sure that the power supply to the heater is off 2 Remove the door of the heater 3 Remove the screws that hold the cover to the power connection box located in the upper right corner of the heater Remove the cover 4 Check the power conversion plug to be sure that the correct side is plugged into the power circuit board to match the voltage supplied to the heater Each side of the plug is labeled accordingly NOTE The blue side of the power conversion plug is used for 230V and the white side is used for 115 V 5 The heater 1s shipp
38. 8 2 1 Spring and Fall Operation During periods when the pool is only going to be used occasionally set the pool and spa control tem peratures to 70 F 21 C see Section 7 2 3 This prevents the pool water from becoming chilled and minimizes the time required to raise the pool water back up to the desired temperature In areas subject to only short freeze periods turn off the heater The Freeze control function of the heater will start the pump when the water temperature falls to the FREEZE SET temperature see Section 7 2 4 The freeze protection will only operate if the internal relay is controlling the filter pump The pump will run continuously until the water temperature has risen to 2 above the FREEZE SET temperature If the heater is not going to be used for a long period of time shut it down completely Follow the instructions found on the inside of the heater or page 25 of this manual 8 2 2 Winterizing In areas where freezing temperatures occur in winter and the pool or spa will not be used have your Page 32 DRAIN PLUG DRAIN PLUG RETURN SIDE Figure 22 Heater drain locations service technician perform the following steps l Turn off the main gas supply valve to the heater outside the heater jacket 2 Remove heater door 3 Shutdown the heater following the shutdown instructions found on the inside of the heater 4 Remove the drain plug from the return header see Figure 22 loosen the dra
39. ALLEN WRENCH TURN CLOCKWISE UNTIL HEATER GOES OFF Figure 21 Pressure Switch Adjustment 7 Slowly turn the pressure switch adjustment screw counterclockwise one quarter turn The heater should come back on 8 Check the adjustment Press the SELECT key to turn the heater OFF Turn off the power to the heater at the breaker Unplug the pump relay from the power circuit board Restore power to the heater Press the SELECT key to set the heater to POOL The heater must not come on If the heater does start the firing sequence immediately press the SELECT key to turn the heater off disconnect power to the heater plug the pump relay into the power circuit board and restore the power to the heater Then repeat Steps 6 and 7 Check the adjustment again When the adjustment has been checked and verified press the SELECT key to turn the heater off disconnect power to the heater plug the pump relay into the power circuit board and restore the power to the heater 9 Return the pool temperature control to the desired temperature Repeatedly depress the MODE key until the indicator at the top of the display shows POOL SET Press the ENTER key Then use the UP and DOWN keys to set the heater to the desired temperature Press the ENTER key again T Temperature Rise A temperature rise test confirms proper water flow through the heater The temperature rise is the difference between the temperature of the p
40. AUTION Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the heater ATTENTION En cas de surchauffe ou si l alimentation en gaz ne s arr te pas fermez manuellement le robinet d arr t de l admission de gaz CAUTION Do not attempt repairs on the gas controls or appliance Tampering is dangerous and voids all warranties Model LJ Pool and Spa Heater Page 21 ATTENTION Ne tentez pas d effectuer des reparations au syst me de r gulation du d bit du gaz ou l appareil Toute modification non autoris e est dangereuse et entra ne l annulation de toutes les garanties CAUTION Keep all objects off the top of the heater Blocking air flow could damage the heater and may void the warranty ATTENTION Ne posez aucun objet sur le dessus de l appareil Il pourrait emp cher la circulation de l air ce qui risquerait d endommager l appareil et d annuler la garantie WARNING Vent pipes draft hoods and heater tops get hot These surfaces can cause serious burns Do not touch these surfaces while the heater is in operation Adding a vent cap reduces the temperature on the top AVERTISSEMENT Les tuyaux d a ration et le dessus de l appareil deviennent chauds Ils peuvent causer de graves br lures Ne touchez pas ces surfaces lorsque l appareil est en marche WARNING For your safety when starting the heater keep your head a
41. CT key to turn the heater OFF Turn off the power to the heater at the breaker Unplug the pump relay from the power circuit board Restore power to the heater Press the SELECT key to set the heater to POOL The heater must not come on If the heater does start the firing sequence immediately press the SELECT Page 34 _Jandy key to turn the heater off disconnect power to the heater plug the pump relay into the power circuit board and restore the power to the heater Refer to Section 7 6 Adjusting the Pressure Switch for procedures on adjusting the pressure switch When the adjustment has been checked and verified press the SELECT key to turn the heater off disconnect power to the heater plug the pump relay into the power circuit board and restore the power to the heater 8 Conduct a normal operating cycle and observe that the sequence proceeds as intended A Caution For your safety when starting the heater keep your head and face away from the lower firebox opening to prevent any risk of personal injury ATTENTION Pour votre s curit personnelle lorsque vous mettez l appareil en marche tenez votre t te et votre visage loin du br leur pour viter tout risque de blessure 9 Make a visual check of the main burner flame The flame can be seen in a mirror arrangement held beneath the burners The flame should be a Blue in color b 1to4 inches 25mm to 102mm above burner surface see Figure 2
42. H0248900E Installation and Operation Data asa ee 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 Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS 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
43. Model LJ Pool and Spa Heater Page 19 x A Q A UP DOWN PUMP WIRES FROM POWER SOURCE N S 1191Q El gt GROUND 6 SCREWS P N 6581 Figure 17 Field Wiring Connections 230V Shown box see Figure 17 Be sure to follow the wiring 6 3 Bonding diagram see Figure 16 to configure the power for the correct input voltage CAUTION This heater must be connected to a bonding 7 Attach the ground wire to one of the green grid with a solid copper wire not smaller in ground screws located on the back panel of the diameter than 8 ga power connection box ATTENTION 8 Replace the cover of the power connection box L appareil de chauffage doit tre connect a and replace the screws to hold it in place une grille de mise la terre par un fil de cuivre 9 Connect a bonding wire 8 ga copper to the d un diam tre de calibre minimal 8 bonding lug on the right side of the heater The National Electric
44. PERATURE perform the following steps l Press the MODE key repeatedly until the words FREEZE SET appear at the top of the display screen gt MODE 2 Press the ENTER key The temperature indica tor in the lower left corner of the display will start to flash 3 Press the UP or DOWN key to adjust the desired temperature ee or Arp Kl po me 0 lt a cmi ge gt 24 UP DOWN 4 When the temperature is set to your preference press the ENTER key The temperature indicator will stop flashing and the word NORMAL will appear in the upper left corner of the display screen to indicate that the desired freeze tem perature has been set and the heater is now in norma l operating mode ne gt ENTER Page 24 _Jandy 7 2 5 Setting the Internal Pump Time Clock The LJ controller has a built in PUMP TIME CLOCK An optional electrical relay must be in stalled to use this function of the heater The time clock may be set to cycle the pump once in each 24 hour period To set the ON and OFF times for the PUMP TIME CLOCK perform the following steps 1 Press the MODE key repeatedly until the icon PROGRAM appears at the top of the display screen ESI MODE PROGRAM 2 To program the start time of the pump press the ENTER key The hour indicator in the lower right corner of the display will start to flash and the word ON wi ear over the hour fficator pn ENTER 3 Press t
45. al Code and most other NOTE No external junction box is required codes require that all metallic components of a pool Conduit may be connected directly to the jacket structure including reinforcing steel metal fittings and of the heater Low voltage wires 24V that stay above ground equipment be bonded together with a inei dede heaermitis e Lie conneclion box solid copper conductor not smaller than a number 8 wire The heater along with pumps and other such equipment must be connected to this bonding grid A special labeled bonding lug is provided on the right side through the upper hole provided on the left side of the box High voltage wires 115 230V that stay inside the heater must exit the connection of the heater to accommodate this requirement box through the lower hole provided on the left side of the box Page 20 _Jandy 6 4 Pump Power Connection Electrical wiring must be in accordance with the latest edition of the National Electric Code NEC ANSI National Fire Protection Association NFPA 70 unless local code requirements indicate otherwise To connect the pump to the LJ controller internal time clock perform the following steps 1 Turn off all power to the heater at the circuit breaker panel 2 Remove the door of the heater 3 Remove the screws that hold the cover to the power connection box located in the upper right corner of the heater Remove the cover 4 Install the relay Jandy part num
46. and s par la Commission U S de S curit des Produits pour les Consommateurs devraient tre respect s lors de l utilisation du spa WARNING The U S Consumer Product Safety Commission warns that elevated water temperature can be hazardous Consult heater operation and installation instructions for water temperature guidelines before setting temperature AVERTISSEMENT La U S Consumer Product Safety Commission indique que des temp ratures de l eau lev es peuvent tre dangereuses Voir la notice d installation et de fonctionnement pour le r glage de la temp rature 1 Spa or hot tub water temperature should never exceed 104 F 40 C One hundred degrees Fahrenheit 100 F 38 C is considered safe for a healthy adult Special caution is recommended for young children 2 The drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness which could lead to unconsciousness and subsequently result in drowning 3 Pregnant women take note Soaking in water above 102 F 38 5 C can cause fetal damage during the first three months of pregnancy which could result in the birth of a brain damaged or deformed child If pregnant women are going to use a Spa or hot tub they should make sure the water temperature is below 100 F 38 C maximum 4 The water temperature should always be checked with an accurate thermometer before entering a spa or hot tub Temperature controls may
47. and DOWN keys to set the heater to the desired tempera ture Press the ENTER key again SECTION 8 Maintenance 8 1 Water Chemistry Proper chemical balances are necessary for sanitary bathing conditions as well as ensuring your heater s long life Be sure to keep your chemical levels within the values indicated in Table 8 Jandy Pool Products Inc does not warrant heat exchangers damaged by corrosive chemical levels or excess dissolved solids in pool or spa water For spas it is also necessary to perform water changes in addition to chemical treatment It is recom mended to change the spa water every 60 days for light usage and every 30 days if usage is heavy Table 8 Mineral Concentration Levels Test Recommended Level Free Chlorine or 1 0 to 3 0 ppm 3 0 to 5 0 spa Bromine 2 0 to 4 0 ppm 3 0 to 5 0 spa H 7 4 to 7 6 Total Alkalinity TA 80 to 120 ppm Calcium Hardness CH 200 to 400 ppm Cyanuric Acid 30 to 50 ppm Total Dissolved Solids TDS Less than 2000 ppm Copper 0 ppm Concentration levels taken from Basic Pool and Spa Technology published by NSPI National Spa and Pool Institute 8 2 Seasonal Care CAUTION Do not operate this heater outdoors at temperatures below 20 degrees Fahrenheit F 7 degrees Celsius C ATTENTION Ne faites pas fonctionner cet appareil l ext rieur des temp ratures inf rieures 20 degr s Fahrenheit F 7 degr s Celsius PC
48. appareil 4 Do not use the heater if any part has been under water Immediately call a qualified professional technician to inspect the heater and replace any part of the control system which has been submerged N utilisez pas cet appareil s il a t plong dans l eau m me partiellement Faites inspecter l appareil par un technicien qualifi et remplacez toute partie du syst me de contr le et toute commande qui ont t plong s dans l eau 5 If the heater is equipped with a pressure relief valve check for corrosion in and around the valve Twice a year with the filter pump on lift the release lever on the top of the valve to make sure that water runs freely through it If corro sion is found replace the pressure relief valve When replacing the valve be sure that the pump is off Install the valve so that the discharge is directed away from any area that may be damaged by water 6 Besureall combustion air and ventilation open ings are not blocked Check for spider webs and other debris inside the heater 1n the vents on all sides of the heater jacket and in the exhaust outlet especially after a long period of nonuse 8 3 2 Professional Inspection Inspections performed at least once a year by a qualified technician are required to maintain your heater s safe and efficient operation The following basic safety checks must be performed l Inspect the venting system for blockage leakage and corrosio
49. at steps 8 through 13 of the temperature rise test see Section 7 7 If the temperature rise is below the minimum stated in Table 7 open the manual bypass valve until temperature rise climbs between the min and max range for your size heater If the minimum temperature rise stated in Table 7 cannot be reached with the manual bypass fully open then the gas supply volume is too low Model LJ Pool and Spa Heater Page 31 11 Ifthe temperature rise is above the maximum there is not enough water flowing through the heater Check for clogging in the water filter or restriction in the water pipes 12 Once the temperature is within the correct range safety wire the handle of the manual bypass valve in place and tag the valve to prevent change in the water flow 13 Complete the procedure as follows a Set the controller to OFF by repeatedly depressing the SELECT key until the display shows that the heater is OFF b Turn the filter pump off by pressing the PUMP key and allow up to five minutes for the pump to shut down c Turn off the power to the filter pump at the circuit breaker d Remove thermometer and Pete s plug e Replace the drain plug f Turn on the power to the filter pump at the circuit breaker g Return the pool temperature control to the desired temperature Repeatedly depress the MODE key until the indicator at the top of the display shows POOL SET Press the ENTER key Then use the UP
50. ate that a power loss has ocurred and the time needs to be reset The pump can be turned off manually at any time by pressing the PUMP key If the heater is running when the pump is turned off the pump will go into COOL DOWN mode and continue to run for 5 minutes If the heater was running within the last 5 minutes the pump will continue to run for the time remaining to complete a 5 minute cool down The COOL DOWN mode allows cool water to circulate through the heat exchanger removing residual heat from the combustion chamber When the pump is in the COOL DOWN mode the controller will display the COOL DOWN icon just above the pump icon To turn the pump on at any time press the PUMP key If the heater is in either the POOL or SPA mode and the water temperature is less than the pool or spa temperature setting the ignition se quence will begin 7 4 3 Locking Unlocking the Keypad Once all of the limits have been set see Section 7 2 Setting the LJ Controller Functions and Limits you may choose to lock the keypad to prevent acci dental changing of the limits set Use the following procedure to lock and unlock the keypad 1 Press the MODE key repeatedly until the icon F C appears at the top of the display screen gee gt gt be MODE 2 Press the ENTER key The temperature scale indicator in the lower right corner of the display will start to flash ee v go c cU ENTER 3 Press the MODE key
51. ber R0658100 in the mounting holes provided in the power con nection box See Figure 17 The relay must be installed so that it is protected by the power connection box cover when it is replaced 5 Install the wire harness assembled to the relay Jandy part number R0658100 Check that the black wire connects to terminal 0 of the relay and the red wire connects to terminal 1 Plug the other end of the harness into the power circuit board at the connection labeled Pump Relay 6 Remove the button plug from the hole on the right side of the heater located just below the entry hole for the power 7 Feed the pump wires through the jacket and connect them to the Power In terminals on the power circuit board and the relay terminals as indicated on the wiring diagram on page 18 Remember to use the alternate wiring scheme see Figure 16 when connecting power to a 115 volt source 8 Attach the ground wire to one of the green ground screws located on the back panel of the power connection box 9 Replace the cover of the power connection box and replace the screws to hold it in place Be sure that the power wires and pump wires are completely enclosed by the cover Be sure that the wires are not pinched by the cover SECTION 7 Operating Instructions 7 1 Start Up Be sure that there is water in the pool and that the surface level is above the skimmer or other inlet of the pool s filter system With any new pool
52. cedure These procedures require a Volt Ohm meter with a minimum 0 250 V AC voltage range and 0 1000 Ohm resistance range Figure 27 shows the power and control circuits and where to take measurements Location numbers and letters in circles have been added and will be referenced in the following sections As stated at the beginning of this manual some of these procedures are hazardous Only a qualified service technician should service the heater 10 4 1 Electrical Power Supply The electrical components of the Lite2 pool heater are designed to operate with supply voltage ranging from 98V to 126V at 60 Hz if connected to a nominal 115 volt power supply or 196V to 253V at 60 Hz if connected to a nominal 230 volt power supply Measure supply voltage at the hot and neutral screw terminals in the heater electrical junction box identified as points A and B on the wiring diagram If no voltage is present correct this external power supply problem to the heater Circuit breakers time clock settings or similar devices may be the problem Voltage outside of the above ranges may be due to poor wiring poor connections other loads such as air conditioning compressors or to an electric utility company problem Arrange for correction of the voltage as appropriate 10 4 2 Controller The controller must be operational in order to check the control circuits of the heater If the red LED on the power distribution board is on but the cont
53. chloroethylene chlorine etc WARNING Do not store any chemicals cleaners or other corrosive material near combustion air openings or in the room Avoid locating dryer vents in the vicinity of combustion air openings Failure to prevent corrosive materials from mixing with combustion air can result in reduced heater life and unsafe heater operation AVERTISSEMENT N entreposer aucun produit chimique produit nettoyant ou produit corrosif proximit des bouches d air de combustion ou dans la pi ce viter de placer des tuyaux de ventilation pour s cheuse proximit des bouches d air de combustion Le fait de laisser des matieres corrosives se m langer l air de combustion risque de r duire le cycle de vie de l appareil de chauffage et de compromettre son fonctionnement 3 2 Vent Pipe Sizing and General Installation 3 2 1 Outdoor Installations For outdoor installations exhaust venting consid erations will determine the placement of the heater See Section 2 3 4 If the heater cannot be placed so as to meet the requirements stated in Section 2 3 4 a vent pipe and cap may be added to the heater to move the exhaust vent opening to a position that complies with the requirements When the heater is installed in areas of high wind or when unavoidably installed near a vertical obstruction where downdrafting may occur it may be desirable to add a vent cap directly to the top of the heater In all cases
54. distributor with any questions or problems involving the specifications installation and operation of your Jandy equipment An experienced technical support staff is ready to assist you in assuring the proper performance and application of Jandy products For technical support call the Jandy Products Techni cal Service Department at 707 776 8200 extension 260 Model LJ Pool and Spa Heater Page3 1 6 Materials Installer Must Provide 1 6 1 Materials for All Applications The following items are needed and are to be supplied by the installer for all Lite2 heater installa tions l The correct size gas pipe to supply gas from the meter to the heater see Section 4 1 for correct gas pipe size A manually operated gas valve to be installed in the gas line outside of the heater jacket A suitable gas union joint to connect the heater to the gas line outside of the heater Plumbing items needed to provide a sediment trap drip leg in the gas line between the manual gas valve and the union to the heater see Section 4 1 A 115V AC or 230V AC power supply A junction box is not needed at the heater connec tions are made inside of the heater jacket 1 6 2 Materials for Special Applications In addition to the items listed above the following items are needed for special applications l A factory authorized draft hood and any vent pipe needed for indoor installations in the USA and outdoor shelter installat
55. e allows for operation using the controller s built in time clock Refer to section 7 2 5 Setting the Pump Time Clock Model LJ Pool and Spa Heater Page 25 FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions ved ns fire or explosion may e result causing property damage personal injury or loss of A This appliance does not have a pilot light It is equipped with an ignition device which automatically lights the heater Do NOT try to light the burners by hand BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance e Do not touch any electric switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions C e f you cannot reach your gas supplier call the fire department Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas
56. e connector test point 9 This test point will have voltage present only during a trial for ignition or during normal operation The meter should read 20 28 volts If there 1s no voltage there may be a bad connection on the power distribution board and the board may need to be replaced Listen closely to the gas valve when it is first energized 24V first appears at test point 9 during the trial for ignition There should an audible click when the valve opens If there is voltage at test point 9 but the gas valve does not open replace the valve WARNING The igniter and some terminals of the power distribution board utilize 115V or 230V power and require appropriate servicing precautions Note that wires and terminals of these components may be hot or live even when the component is not operating AVERTISSEMENT Le dispositif d allumage le circuit d alimentation lectrique et certaines bornes de la commande d allumage utilisent une tension de 115 V ou de 230 V et exigent des pr cautions appropri es lors du service d entretien et de r paration Notez que les fils et les bornes de ces composants peuvent tre sous tension m me si le composant ne fonctionne pas 10 4 3 8 Igniter Ignition Control With the igniter leads connected to the terminals on the power distribution board there will be voltage of 98 126 VAC between test point 10 and test point 11 if the heater is connected to a 115V supply When the sup
57. eater is now in normal operating mode EE gt gt ENTER NORMAL 7 2 2 Setting the Temperature Scale The LJ controller can display all temperature readings in either degrees Fahrenheit or degrees Centigrade Once the temperature scale is entered it may take up to 30 seconds to update the inlet water temperature To set the display to the desired TEM PERATURE SCALE perform the following steps 1 Press the MODE key repeatedly until the icon F C appears at the top of the display screen poe gt gt Ge MODE 2 Press the ENTER key The temperature scale indicator in the lower left corner of the display will start to flash Vl oF E Du xu ENTER 3 Press the UP or DOWN key to toggle between F and C ue ru E E omy e 2 UP 4 When the temperature scale is set to your DOWN preference press the ENTER key The tempera ture scale indicator will stop flashing and the word NORMAL will appear in the upper left corner of the display screen to indicate that the desired temperature scale has been set and the heater is now in normal operating mode E gt gt Com ENTER 7 2 3 Setting Pool and Spa Temperatures The LJ controller has dual temperature modes which allows two different temperature settings selected by the SELECT key on the bottom of the control panel One mode can be set for normal use and the other for standby or one can be set for pool and the other for a spa
58. ed with test wires connected to the Power In terminals on the power circuit board They are black and red and emerge from the heater through a hole on the right side Before connecting the power source remove these wires and discard them NOTE As an alternate method for connecting the power you may do the following When connecting 230 VAC match the wire colors from the power supply to the wire colors of the test wires Connect the wires using wire nuts When connecting 115 VAC connect the black wire of the power supply to the black test wire on the side of the heater and connect the white wire of the power supply to the red test wire Use wire nuts to secure the connections 6 Run the wires from the power source through the hole on the right side of the heater Connect the wires to the Power In terminals on the power circuit board The connection will be made inside the heater and enclosed in the power connection Page 18 _Jandy LITE2 MODEL LJ WIRING CONNECTION RIBBON CABLE Sey Sl Le eae NOTES IF ANY OF THE ORIGINAL FIELD WIRED 115V 230V WIRE AS SUPPLIED WITH THE HEATER FACTORY WIRED 27 V MUST BE REPLACED APPLIANCE WIRING MATERIAL RATED FOR 105 C BLUE MUST BE USED WHERE MARKED aie THUS APPLIANCE WIRING GREEN MATERIAL RATED FOR 200 C MUST WHITE BE USED YELLOW ae SI LUN QUELCONQUE DES FILS D ORIGINE FOUMIS AVEC LE CHAUFFE EAU DOIT TRE REMPLAC UN FIL P UR APPAREILS
59. emical feeder to prevent back siphoning of chemically saturated water into the heater where it will damage the compo nents 5 3 Automatic Flow Control Valve The inlet outlet header of the Lite2 comes equipped with an automatic flow control valve The automatic flow control valve maintains the proper flow through the heater at rates up to approximately 125 Gallons Per Minute GPM 475 liters per minute LPM If the filter system flow rate is higher than approximately 125 GPM 475 LPM install a manual bypass valve see Figure 7 then perform a tempera ture rise test see Section 7 7 and adjust the flow using the bypass valve until the proper temperature rise 1s obtained 5 4 Reversible Water Connections Jandy Pool Products Inc ships the Lite2 heater with the water connections on the right side The Lite2 heater can be installed with the water connections on either side It could be necessary or helpful to switch REAR RAIN SHIELD PANEL OMITTED ON Sx CANADIAN MODELS FLUE COLLECTOR ASSEMBLY GAP CLOSURE HEAT EXCHANGER 7 FIBERGLASS INSULATION RUBBER JACKET PLUG GROMMET li c Figure 8 Heat exchanger reversal iA LZ HOLD DOWN CLAMP i l IN OUT HEADER A Gi OQ BRACKET Figure 9 Flue collector hold down brackets the connections to the left side to improve access for installation and service Perform this modification before installing the heater using the following proce du
60. en set according to the previous section of this manual Section 7 2 Setting the LJ Controller Functions and Limits Once the controls are set to your prefer ences follow the instructions outlined on the following page Read and follow all safety instructions first A more detailed set of instructions of the opera tion of the LJ controller follows in the next section NORMAL NOTE If your heater is configured to operate on LP gas and the LP tank runs out of fuel turn off gas at the heater After the tank is refilled the heater must be relit following the instructions found on the inside of the heater A copy of these instructions appear on page 25 DO NOT attempt repairs on the gas control or heater Tampering is dangerous and voids all warranties 7 4 Heater Controller Operation When the heater is shipped from the factory the LJ controller has been tested and factory default values have been entered for all settings in the control ler memory When the controller is set up with the factory default values it is said to be in the External Time Clock mode because an external time clock can be set to control the heater by connecting it to the fireman switch connection on the power distribution board These values are the controller default values and have been entered to allow for easy heater operation directly out of the box when using an external time clock Programing the heater to the Internal Time Clock mod
61. er see Section 5 6 Arrangement of pool system components other than as illustrated in these diagrams can affect the operation of the heater s water pressure switch Location of the heater above or below the pool water surface can also affect operation of the switch In general the pressure switch can be adjusted to accommodate this effect if the heater water connec tions are no more than six feet below the pool water surface and no more than 15 feet above it See instructions for pressure switch adjustment Section 7 6 in the heater start up section of this manual for more information about this Note that when pool equipment is located below the pool surface a leak can result in large scale water loss or flooding Jandy Pool Products Inc cannot be responsible for such water loss or flooding or the damage caused by either occurrence For special installations such as water connec tions below the water level of the pool or for other questions contact the Jandy Technical Service depart ment at 707 776 8200 ext 260 5 2 Check Valve Installation The heater must be protected from back siphoning of water which can result in dry starts If there is any chance of back siphoning provide a check valve between the pool and the filter pump inlet When an automatic chemical feeder is installed in the plumbing it must be installed downstream of the heater see Section 5 7 A check valve must be installed between the heater and the ch
62. erly To adjust the pressure switch 1 Turn the pump OFF by pressing the PUMP key so that the display shows that the pump is OFF If the heater was running it should go off immedi ately and the pump will run in the COOL DOWN mode for 5 minutes If the heater has been running within the last 5 minutes the pump will continue to run for the remainder of the 5 minute cool down period see Figure 20 2 Setthe pool temperature control to the maximum setting Repeatedly depress the MODE key until the indicator at the top of the display shows POOL SET Press the ENTER key Then use the UP key to set the temperature to 104 F 40 C Press the ENTER key again NORMAL POOL CLOCK PROG FREEZ INVALID SERVICE HEATER COOL COMMAND DOWN utt h Pb a POOL GFF SPA ON OFF IUS F 100 POOL OFF SPA PUMP Figure 20 LJ controller display Model LJ Pool and Spa Heater Page 29 3 Turn filter pump on by depressing the PUMP key If a two speed pump is used make sure it is at high speed NOTE Heater should not be allowed to fire on low speed 4 Setthe controller to POOL by repeatedly depressing the SELECT key until the display shows that the heater is set to POOL The heater should start 5 Pry out the rubber dust plug on the top of the pressure switch 6 Use a 7 32 inch 5 55 mm Allen wrench to turn the adjustment screw very slowly clockwise until the heater goes off see Figure 21
63. esign for a sediment trap drip leg Page 11 Table 5 Gas Supply Pressure Requirements Natural Gas 5 5 Inches WC 10 0 Inches WC 1 4 kPa 2 5 KPa LP Gas 10 0 Inches WC 14 0 Inches WC 2 ee Em kPa 3 5 kPa Manifold Pressure Pressure Nominal 0 Natural Gas 4 0 Inches WC 1 0 kPa 3 Inches WC 2 2 KPa ATTENTION Vous endommagerez la soupape de gaz si vous ne respectez pas les proc dures suivantes Use the figures in Table 4 to size the gas inlet piping from the gas meter to the heater Check all local codes for compliance before installing the heater Install a sediment trap drip leg ahead of the gas controls see Figure 6 Fit the trap with a threaded cap which can be removed for cleaning Install a manual gas shutoff valve for service and safety Do not use a restrictive gas cock DO NOT USE FLEXIBLE GAS PIPING it will restrict the gas flow to the heater Disconnect the heater and its individual shutoff valve from the gas supply system during pressure testing of the system at pressures higher than 1 2 pounds per square inch psi 3 45 kilopascals kPa If the test pressure is equal to or less than 1 2 psi 3 45 kPa close the manual shutoff valve on the heater during the piping pressure test If the gas supply pressure is less than required check for undersized pipe between the meter and the heater a restrictive fitting or an undersized eas meter Gas supply pressures to the heater
64. for the Lite2 model 28 Fusible Link Assembly Wl Pis LJ pool spa heater contact your nearest Jandy dealer 56 Eusible Link Bracket All 10479900 or distributor See the Jandy web site at 30 Igniter Box Assembly Ki Al R0383900 31 Igniter All R0367100 www jandy com for the nearest service center If they 3o igniter Fuse Assy Get ot 2 AI R0383300 cannot supply you with what you need contact 33 Flame Sense Rod E See Key No 5 Customer Service at Jandy Pool Products Inc P O 34 Wire Harnesses Temp lgnition Control All R0366600 Box 6000 Petaluma California 94954 Telephone VENTSYSTEM 707 776 8200 extension 245 35 Top Enclosure 125 400 R0343401 05 36 Top Filler Plate 125 400 R0343701 05 I IC 37 Rainshield Kit 125 400 R0318301 05 NOTE To supply the correct part it Important 38 Flue Collector Assembly 125 400 R0316401 05 that you state the model number serial number 39 Outdoor Vent Cap U S 125 400 10561501 05 i 40 Indoor Drafthood U S 125 400 10561401 05 and type of gas when applicable This 41 Flue Transition Plate 125 400 10861901 05 information is on the rating plate inside the 42 Adapter Plate 125 400 10535301 05 heater 43 Clip All 10211000 44 Flue Collector Hold Down Clamp All 10726000 WATERSYSTEM 11 2 Parts List i The following four pages contain a parts list 49 InlevOutlet Header 2 Al eee 45 nlet Outlet Header Bronze 2 All R0016800 gener al exploded view and detailed exploded views to 46 Return Header
65. fter the 15 second prepurge note the voltage between test points 10 and 11 Then look for the glow of the igniter by placing a mirror on the bottom of the burner tray If voltage does not appear between points 10 and 11 during the trial for ignition replace the power distribution board If the correct voltage is detected between points 10 and 11 during the trial for ignition but the igniter does not glow check the connections to the igniter Disconnect the igniter wires from the in line fuse harnesses and the fuse harnesses from the power distribution board Using an ohmmeter check each fuse and harness for continuity If the ohmmeter reads an open circuit the fuse has failed The fuses are in place to protect the power distribution board in the event of an igniter short circuit If either of the fuses has failed replace the igniter before replacing the fuse If the fuses are intact check the igniter with the ohmmeter Place one lead of the meter on each wire of the igniter The resistance should read between 25 and 300 Ohms depending on the temperature of the igniter If the meter reads outside of this range or shows an open or short circuit replace the igniter Page 44 Jar andy SECTION 11 Key Model Order Replacement Parts No Description No Part No ELECTRICAL SYSTEM cont d 11 1 Ordering Information 26 High Limit Switch Retainer Clip AI 10418400 27 High Limit Switch Cover All 10418300 To order or purchase parts
66. h the hole in the vestibule cover and into the vestibule controls compartment then pull the thermostat bulb assembly through same hole see Figure 11 11 When removing the heat exchanger from the HEAT EXCHANGER END BAFFLES COMBUSTION CHAMBER FRONT PANEL Figure 12 Heat exchanger and end baffles 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 and rear tubes of the heat exchanger Each 21 Install the flue collector assembly Be sure the baffle is held in place by two screws which front and rear panels of the flue collector are mount to the top of the combustion chamber wall installed into the grooves on the front and rear Remove the screws and the baffles before combustion chamber heat shield panels Be sure attempting to lift the heat exchanger out of the the sheet metal panels are not pinching any heater see Figure 12 wires 22 Attach the flue collector hold down clamps to the clips located under the two center header bolts CAUTION The heat exchanger is heavy It may be l necessary to have help lifting the heat 23 Replace the gap closures and tighten the screws exchanger out and replacing it securely Be sure to replace the insulation completely covering the temperature sensor
67. he UP or DOWN key to adjust the hour The PM indicator shows for PM time There is no indicator for AM time aul DOWN ON NZ 5 gt F900 4 When the hour is set correctly press the ENTER key The minutes indicator will start to Hash 5 Press the UP or DOWN key to adjust the minutes ES DOWN IP rj m 6 When the minutes are set correctly press the ENTER key to program the stop time for the pump The hour indicator in the lower right corner of the display will start to flash and the word OFF will appear over the minutes indica tor CFF NS ly E gt jo ENTER 7 Press the UP or DOWN key to adjust the hour The PM indicator shows for PM time There is no indicator for AM time ES DOWN CFF l gt gt V ly 8 When the hour is set correctly press the ENTER key The minutes indicator will start to flash OFF gt gt ol A E 407 ENTER 9 Press the UP or DOWN key to adjust the minutes CFF Y ST N gui gt gt we 10 When the minutes are set correctly press the DOWN ENTER key The minutes indicator will stop flashing and the word NORMAL will appear in the upper left corner of the display screen to indicate that the pump time clock has been set and the heater is now in normal operating mode EE gt gt ENTER 7 3 Lighting and Shutdown Procedures Before starting your heater be sure that all of the functions and limits of the LJ controller have be
68. hood F Downdraft conditions 3 Spillage at A Cold chimney A Remove blockage B Correct igniter position C Clean and correct as necessary D Correct or replace blanket as necessary E Install factory provided draft hood F Install draft hood A Allow heater to operate 5 minutes to create draft action draft hood B Vent pipe pitches down to chimney C Blocked chimney D Draft hood altered E Prefabricated chimney with incorrect cap B Reinstall vent pipe to pitch up from heater to chimney C Remove blockage D Install factory provided draft hood E Install a Nationally Recognized Testing Lab NRTL listed vent Cap 4 Flame has A Low primary air A Correct manifold pressure according to rating plate Correct lazy yellow tip orifice size if necessary see parts list Clean burner ports if dirty 9 Not enough heat A Inadequate gas supply A Gas meter too small Gas line from meter to heater too small B Low manifold gas pressure C Heater size inadequate B Gas pressure on heater manifold should be adjusted to 4 0 W C for natural gas 9 0 W C for propane C Replace with heater of higher input 6 Heater pounding A Water flow through heater too low A Check temperature rise between inlet and outlet heater or knocking piping See Section 7 7 for recommended range of temperature rise If temperature rise is above the maximum recommended increase pipe size or pump capacity or locate obstruction Check for
69. in Canada Table 1 Altitude Designations for the LJ Pool Heater NATURAL GAS ALTITUDE UNITED CANADA DESIGNATION STATES LOW ALTITUDE 0 3000 FT 0 2000 FT 0 610 m MID ALTITUDE 3001 6000 FT 2001 4500 FT H 611 1370 m HIGH ALTITUDE 6001 10 000 FT NOT J APPLICABLE LP LOW ALTITUDE 0 5000 FT 0 4500 FT 0 1370 m HIGH ALTITUDE 5001 10 000 FT NOT H APPLICABLE 1 7 2 Dimensions See Figure 1 for a diagram showing the heater s exterior dimensions and dimensions to critical connec tions on the heater SECTION 2 Installation Instructions WARNING Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury 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 _Jandy AVERTISSEMENT Une installation ou un entretien inad quat peut causer la naus e ou l asphyxie en raison du monoxyde de carbone pr sent dans les gaz de combustion et m me entrainer des blessures graves ou la mort Pour les installations int rieures comme mesure de s curit additionnelle Jandy Pool Products Inc recommande fortement l installation de d tecteurs de monoxyde de carbone pr s de cet appareil ainsi que dans les espaces adjacents occup s
70. in plug from the inlet outlet header and completely drain the heater before the first frost 5 After all water has drained from the heater remove the drain plug from the inlet outlet side Check for mineral buildup in the openings 6 Use compressed air to blow out any standing water remaining in the heat exchanger 7 Grease the threads on the drain plugs and reinstall plugs but do not tighten 8 Disconnect the pressure switch from the siphon tube copper tubing see Figure 23 8 2 3 Spring Start up To restart the heater in the Spring have a professional service technician reassemble the heater as follows 1 Attach the copper tubing to the pressure switch see Figure 23 2 Tighten the drain plugs 3 Make sure that power is supplied to the heater controller and the pump Turn on the filter pump by pressing the PUMP key and circulate water through the heater for 5 minutes Check for leaks DRAIN PLUG INLET OUTLET SIDE SYPHON TUBE PRESSURE DISCONNECT HERE WINTERIZING Figure 23 Pressure switch copper tubing while circulating 4 Turnon the main gas supply valve to the heater outside the heater jacket 5 Turn on the heater following the lighting instruc tions found on the inside of the heater or page 25 of this manual 8 3 Inspection and Service Jandy Pool Products Inc designs and constructs the Lite2 heater to provide long performance life when installed and operated properl
71. ine the temperature limit of the water If set to SPA the spa temperature setting will determine the temperature limit of the water The heater is now set to come on when the pump is running between the programmed pump time clock ON and OFF settings and when there is a call for heat the inlet water temperature is more than 1 less than the chosen temperature setting If these two conditions are met the controller will attempt to light the heater When the heater lights and the controller senses flame at the burners the FLAME icon will appear on the left side of the controller display above the tem perature reading If the heater fails to ignite it will attempt the ignition two more times If the heater fails to ignite after the third try the controller will lock out any further attempts to light the heater The controller will show the service code FL 2 where the temperature reading would normally be seen and the service icon swe will appear in the center of the display see Section 9 2 1 SERVICE CODES The controller also checks the power supply voltage If the voltage is insufficient to run the heater properly brown out condition the controller will display the service code FL 5 and the service icon see Section 9 2 1 SERVICE CODES When the controller is in the NORMAL mode the heater will operate whenever the POOL or SPA mode is chosen via the SELECT key t the pump is on and there is a ca
72. ions in Canada see Section 3 2 2 Draft hoods are available from any Jandy distributor Primer and cement suitable for cementing CPVC pipe to PVC pipe and an appropriate coupling for connecting the factory supplied CPVC pipe nipples to PVC pool plumbing A noncombustible platform for installation on combustible surfaces see Section 2 3 3 Non combustible bases are available from your Jandy distributor A factory approved vent cap for all outdoor installations where wind conditions may cause downdrafting Approved vent caps are available from your Jandy distributor See Section 11 2 Parts List of this manual for the correct part number Electrical relay Jandy part number R0658100 if pump is to be run by the heater s internal time clock 1 7 Specifications l 1 7 1 General Specifications Installation Location Certified for use In the USA Natural Gas Indoor and Outdoor Propane Gas Outdoor Only In Canada Natural Gas Outdoor and Outdoor Shelter Propane Gas Outdoor Only Minimum Clearance From Combustible Material See Table 2 in Section 2 3 2 Gas Pipe Heater Gas Valve Connection Natural and LP 3 4 NPT For diameter of gas line from meter to heater see Table 4 in Section 4 1 Supply Gas Type Certified for use with Natural Gas and Liquefied Petroleum Gas LP Gas or Propane Gas Inlet Gas Supply Pressure Minimum Maximum Natural Gas 5 5 WC 10 0 WC LP Gas 10 0 WC 14 0 WC Water Pi
73. ll operate or maintain the product s in accordance with our published Installation Operation and Maintenance Manuals provided with the product s 2 The workmanship of any installer of the product s 3 Not maintaining a proper chemical balance in your pool and or spa pH level between 7 2 and 7 8 Total Alkalinity TA between 80 to 120 ppm Total Dissolved Solids TDS less than 2000 Abuse alteration accident fire flood lightning rodents insects negligence or acts of God Scaling freezing or other conditions causing inadequate water circulation Operating the product s at water flow rates outside the published minimum and maximum specifications Use of non factory authorized parts or accessories in conjunction with the product s Chemical contamination of combustion air or improper use of sanitizing chemicals such as introducing sanitizing chemicals upstream of the heater and cleaner hose or through the skimmer 9 Overheating incorrect wire runs improper electrical supply collateral damage caused by failure of O Rings DE grids or cartridge elements or damage caused by running the pump with insufficient quantities of water CON O O1 A 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
74. ll for heat Between the programmed ON and OFF times set for the pump time clock the heater will operate automatically if in the POOL or SPA mode Outside of the programmed ON and OFF times set for the pump time clock the pump must be turned on by pressing the PUMP key If not using the LJ controller pump time clock the external time clock must first be activated 7 4 2 Pump Operation The LJ controller allows two options for pump control It can allow operation of the pump by an external time clock when it is set in the External Time Clock mode see Section 7 4 2 1 To operate in the External Time Clock mode the controller must be programmed with the factory default values indicated in Table 6 The LJ controller can also operate the pump in the Internal Time Clock mode using it s own internal time clock to turn the pump on and off This mode requires the installation of the optional Jandy relay part number R0658100 Refer to Figure 16 for wiring diagram 7 4 2 1 Pump Operation in External Time Clock Mode The heater is in the External Time Clock mode when the controller s pump time clock is programmed to turn on at 12 00 am and turn off at 11 59 pm In this mode when NORMAL is shown on the display the pump operation is controlled by the external time clock When in the External Time Clock mode the controller does not display the Real Time Instead three dashes are displayed Whe
75. ller checks the power supply voltage every 3 minutes If the supply voltage drops below 85 of the nominal supply voltage the display will show the FL5 service code and the heater will not start the ignition sequence The controller will check the supply voltage again 3 minutes later If the low voltage condition still exists the FL5 service code will remain If the actual supply voltage is above 85 of the nominal supply voltage the service code will clear automatically from the display and the heater will resume normal opera tion If the heater was in either POOL or SPA mode when the brown out condition was detected it will remain in that mode when the condition is resolved If the water temperature is less than the thermostat setting the ignition sequence will start automatically and the heater will operate normally Once any other service code has been displayed it will need to be reset after the fault condition has been resolved Once the problem has been identified and repaired press the SELECT key repeatedly to turn the heater off Then poor press the SELECT key again to set the controller to either POOL or SPA The controller should send the heater through the ignition sequence and the heater will operate normally SECTION 10 Professional Maintenance and Service WARNING SERVICING SAFETY Some of the servicing procedures for the Lite2 model LJ pool heater are hazardous because they involve fuel gas electricity
76. med 3 4 Turn gas control knob clockwise to OFF Replace control access panel Page 26 _Jandy Table 6 LJ Controller Factory Default Settings CONTROLLER CONTROLLER DEFAULT PARAMETERS VALUES Real Time CLOCK Setting 1 00 PM 102 F SPA Temperature Setting POOL Temperature Setting FREEZE Temperature Setting Temperature Scale Setting oF F C Pump Time Clock ON PROGRAM 12 00 AM 11 59 PM Heater Status OFF All values in the memory of the controller may be reset to the default values at any time by depressing and holding the ENTER key for at least 7 seconds Default values are listed in Table 6 Before starting your heater be sure to read and become familiar with the Lighting and Shutdown instructions in the previous section Instructions are also located on the inside of your heater Pump Time Clock OFF PROGRAM Pump Status 7 4 1 Normal Operation Be sure that the NORMAL icon is displayed in the upper left corner of the LJ controller display screen If it is not depress the MODE key repeatedly until the icon appears peel gt gt MODE The heater is now in the normal operating mode Press the SELECT key repeatedly to toggle between the POOL SPA and OFF settings until either the POOL or SPA icon appears above the temperature reading E 9 gt gt POOL OFF SPA NORMAL POOL on SPA If set to POOL the pool temperature setting will determ
77. mm in all directions The masonry must be laid with ends unsealed and joints matched to provide free circulation of air from side to side through the masonry see Figure 2 If the heater is installed in a carpeted alcove the entire floor of the alcove must be covered by anoncombustible panel SHEET METAL COVER MIN THICKNESS 24 Ga HOLLOW CONCRETE BLOCK PLATFORM Blocks must provide solid base and be braced so they cannot slip out of place Air openings in blocks must be arranged to provide unrestricted opening through entire width or length of base Figure 2 Noncombustible Platform Note Clearances listed in Table 2 are manufacturer s tested values These are given as minimum values Where local and national SIDE OF INDOOR OUTDOOR SHELTER HEATER INSTALLATION INCHES CENTIMETERS INCHES CENTIMETERS codes apply and values are different than those listed in Table 2 use the greater value to ensure safe operation BLANK REAR Refers to side opposite piping A closet with no door In US 18 in 46 cm clearance In Canada 24 in 61 cm clearance TOP 44 110 OPEN UNROOFED AREA FRONT ALCOVE ALCOVE ALCOVE ALCOVE 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
78. moving parts and procedures which require testing or temporary bypass of safety controls For this reason the heater must be serviced only by a qualified professional service technician IMPROPER SERVICE HAZARD The Lite2 model LJ pool heater incorporates unique design features Incorrect service of this heater can result in personal injury or damage to property To avoid such hazards the heater must be serviced only by a qualified professional service technician AVERTISSEMENT PR CAUTIONS LORS DES R PARATIONS ET DE L ENTRETIEN Certaines proc dures d entretien et de r paration des appareils de chauffage LJ pr sentent des dangers car elles mettent en jeu des gaz combustibles des composants lectriques des pi ces mobiles et des proc dures qui n cessitent des mises l essai ou la d rivation temporaire des commandes de s curit Pour cette raison l appareil de chauffage doit tre entretenu et r par uniquement par un technicien professionnel qualifi DANGERS D UN ENTRETIEN INAD QUAT Les appareils de chauffage LJ comportent des caract ristiques techniques uniques Une r paration ou un entretien inad quat peut entrainer des blessures corporelles ou des dommages la propri t Pour cette raison l appareil de chauffage doit tre entretenu et r par uniquement par un technicien professionnel qualifi 10 1 General Information A qualified professional technician must service the Lite
79. n 3 2 1 Outdoor Installations 3 2 2 Indoor and Outdoor Shelter Installations eese SECTION4 Gas Connections 4 1 Gas Supply and Piping 4 2 Manifold Pressure 4 3 Special Precautions for Propane Gas sees SECTION5 Water Connections 5 1 5 2 5 3 5 4 5 5 5 6 5 7 Water TING ei LS aut iaden ase 12 Check Valve Installation 13 Automatic Flow Control Valve 13 Reversible Water Connections 13 Connections at Heater 16 Pressure Relief Valve 16 Auxiliary Components Chlorinators Ozone Generators and Sanitizing Chemicals 16 SECTION6 Electrical 6 1 6 2 6 3 6 4 General Information 17 Main POWER at nima d 17 Wiring DIAgEAM sn 18 siege rr 19 Pump Power Connection 20 SECTION7 Operating Instructions 7 1 7 2 1 2 1 1 2 2 1 2 3 1 2 4 1 2 5 7 3 7 4 7 4 1 7 4 2 7 4 2 1 7 4 2 2 7 4 3 7 9 1 5 1 1 92 7 6 1 1 1 8 Sc gi D e E E E E eee Creo 20 Setting the LJ Controller Functions and Limits 21 Setting the Real Time Clock 22 Setting the Temperature Scale 22 oetting Pool and Spa Temperatures 22 Setting the Free
80. n Check for spider webs in or other obstructions in the main burner orifices especially at Spring start up Clean with wire brush if necessary Check for loose or broken wires and terminal connections Inspect the electrical controls specifically the following High limit controls Water pressure switch Temperature control Ignition control Automatic gas valve Fusible link Igniter fuses Control circuit fuse Power Board Power distribution board gg mo aono Fe Inspect the external surfaces of the heat ex changer tubes for black carbon soot buildup by placing a mirror between and under the burners when the heater is firing Remove any soot that has collected on the tubes and correct the cause NOTE After installation and first start up check the heat exchanger for black carbon soot buildup after the following periods of operation 24 hours 7 days 30 days 90 days and once every 6 months thereafter If the heater is equipped with a pressure relief valve check for corrosion in and around the valve With the filter pump on lift the release lever on the top of the valve to make sure that water runs freely through it If corrosion is found replace the pressure relief valve When replacing the valve be sure that the pump is off Install the valve so that the discharge is directed away from any area that may be damaged by water Verify pressure switch operation Press the SELE
81. n using an external time clock to control the filter pump operation it is recommended that the time clock have its own low voltage Fireman s switch to turn off the heater before turning off the pump The switch should shut off the heater at least 5 minutes before the filter pump shuts off This will allow for a more efficient operation by removing any residual heat contained in the heat exchanger back to the pool Model LJ Pool and Spa Heater Page 27 When the controller is in the External Time Clock mode the PUMP key is disabled Pressing the PUMP key will temporarily show an INVALID COMMAND message on the controller display 7 4 2 2 Pump Operation in Internal Time Clock Mode To operate the pump using the internal time clock of the controller an optional pump relay available from your Jandy distributor must first be installed see Section 6 4 Pump Power Connection When the controller is in the Internal Time Clock mode and NORMAL is shown on the display the pump will operate between the pro grammed ON and OFF times set for the pump time clock on the LJ controller see Section 7 2 5 The display of the controller will show the time set for the Real Time Clock If power to the heater is lost at any time the controller will keep the last time or setting in memory When power is restored to the heater all settings will remain the same but the real time display will flash to indic
82. nd face well away from the lower firebox opening to prevent any risk of personal injury AVERTISSEMENT Pour votre s curit personnelle lorsque vous mettez l appareil en marche tenez votre t te et votre visage loin du br leur pour viter tout risque de blessure 7 2 Setting the LJ Controller Functions and Limits The LJ controller is a microprocessor based controller designed to control various functions of your pool and spa water circulation system It provides a visual display of the status of the heater and pump functions It has a built in time clock that eliminates the need for an external clock to control the pump It even provides information in the form of service codes used to diagnose a problem in the event of a malfunc tion The pressure sensitive push button keypad and large LCD display make the controller easy to pro gram and use When the LJ controller is powered for the first time it recognizes that the installation is new and uses all the internal default values for control On initial start up and any time the power to the heater has been interrupted and then reestablished the firmware revision will flash for one second on the display screen where the time is normally displayed After one second the display will show the time if the controller is in the Internal Time Clock mode or three dashes if in the External Time Clock mode see Section 7 4 Heater Control Operation The foll
83. o operate the heater by the remote unit use the SELECT key on the LJ controller keyboard to set the heater to the SPA mode Then follow the instructions in Section 7 2 3 setting the Pool and Spa Temperatures to set the spa temperature limit to 104 F 40 C This will allow the remote system s temperature settings to control the water temperature to a maximum of 104 F 40 C The LJ controller now acts as a slave controller and heater functions are controlled by the remote control system To restore control of the heater functions to the LJ controller disconnect the remote system from the Fireman Switch reprogram the pump time clock to desired settings and reset the SPA temperature to the desired setting 7 5 2 Remote Control Connected At The Heater s Control Panel The LJ heater control also provides the option of using a remote switch to change the mode of the heater This remote will allow the user to change the mode of the heater between POOL SPA and OFF A more functional remote may be installed as stated in the previous section A special Jandy wire harness is needed to install the owner provided remote mode switch Contact your local Jandy distributor to order the wire harness kit Part Number R0398400 The wire harness kit includes detailed instructions for the installation of the wire harness and remote switch 7 6 Water Pressure Switch Adjustment CAUTION The water pressure switch should be adjus
84. one more time The icon ULC unlocked or LC locked will flash on the display where the real time clock usually appears saos l eoe cg gt gt sie TAN MODE 4 Press the UP or DOWN key to toggle between ULC or LC l2 ERI ike DOWN 5 Press the ENTER key to accept the choice and return the controller to the NORMAL mode EC A wx ENTER NOTE Once the keypad is locked any attempted changes to the limits or functions of the LJ controller will cause the LCD to temporarily display an Invalid Command message 7 5 Remote Control Operation 7 5 1 Remote Control Connected At Fireman Switch Terminal Block To connect a remote control system the LJ controller must first be set up in the External Time Clock mode The heater is shipped from the factory in this mode If the controller settings have been changed from the factory settings convert the controller to External Time Clock mode by setting the PROGRAM pump time clock ON and OFF times to run for 24 hours To set the LJ controller into External Time Clock mode set the ON time for the PUMP TIME CLOCK to 12 00 AM and the OFF time to 11 59 PM Refer to Section 7 2 5 Setting the Pump Time Clock When the pump time clock is set with these limits it allows the internal time clock of the LJ controller to run the pump for 24 hours This setup allows the heater to be controlled by the remote input through the Fireman s S
85. ool or spa water before and after heating as measured in the header Perform the following temperature rise test when the installation is complete 1 Make sure the pool filter is clean 2 Setthe controller to OFF by repeatedly depress ing the SELECT key until the display shows that the heater is OFF 3 If the filter pump is on turn it off by pressing the PUMP key and allow up to five minutes for the pump to shut down 4 Turn off the power supply to the heater at the circuit breaker panel 5 Remove the drain plug located on the inlet outlet header of the heater and replace it with a Pete s plug see Figure 15 6 Insert a pocket thermometer see Figure 15 through the Pete s plug into the header 7 Turn the circuit breaker on to supply the heater with power 8 Turn the filter pump on and wait 3 minutes The heater remains off This allows water from the pool to reach the heater 9 Record the temperature indicated by the ther mometer cold water 10 Set the pool temperature control to the maximum setting Repeatedly depress the MODE key until the indicator at the top of the display shows POOL SET Press the ENTER key Then use the UP key to set the temperature to 104 F 40 C Press the ENTER key again 11 Set the controller to POOL by repeatedly depressing the SELECT key until the display shows that the heater is set to POOL The heater should start 12 Allow the heater to run for about 3
86. open unroofed area Do not install the heater under a deck Do not locate the heater below or adjacent to any doors glass openings louvers grills etc which connect in any way with an inhabited area of a building even though the access might be through another structure e g a garage or utility room In the United States there must be a minimum of four 4 feet 1 22 m horizontally or four 4 feet 1 22 m vertically between the heater exhaust point and any door glass opening or gravity inlet to a building In Canada the heater must be installed so that the exhaust point of the heater is at least ten 10 feet 3 0 m from any building opening see Figure 3 WARNING United States Do not install the heater with the top of the vent assembly within 4 feet 1 22 m horizontally and 4 feet 1 22 m vertically of any opening into a building Canada Do not install the heater with the top of the vent assembly within 10 feet 3 05 m of any opening into a building AVERTISSEMENT Lorsque vous installez l appareil de chauffage assurez vous que l ouverture d a ration se trouve un minimum de 10 pieds 3 05 m de toute ouverture d un b timent The top surface of the heater must be at least three 3 feet above any forced air inlet or intake ducts located within ten 10 feet horizontally If the heater is installed under an overhang there must be a minimum clearance of 5 feet 1 5 m above the top of the heater and
87. or spa installation operate the filter pump with the heater off long enough to com pletely clean the water This will remove any installa tion residue from the water Clean the filter at the end of this operation before starting the heater When raising the temperature of a cold pool program the time clock to turn the pump off 23 hours and 58 minutes after the start time e g If start time is 2 00 PM then set stop time at 1 58 PM This lets the filter system and heater operate continuously until the water reaches the temperature setting on the temperature control When that happens the heater will automati cally shut off but the filter pump will keep running IMPORTANT The temperature controls cannot be calibrated in the field If the control is faulty shut down the heater by following the procedures in Section 7 3 and have a qualified service technician replace the control DO NOT use the thermostat switch to completely shut down the heater CAUTION Do not use this heater if any part has been under water Immediately call a qualified service technician to inspect the heater and replace any part of the control system and any gas control which has been under water ATTENTION N utilisez pas cet appareil s il a t plong dans l eau m me partiellement Faites inspecter l appareil par un technicien qualifi et remplacez toute partie du syst me de contr le et toute commande qui ont t plong s dans l eau C
88. owing sections explain how to set your heater control to your preferences After programing the controller for the first time all settings and modes will remain in memory until changed Even if the power to the heater is interrupted the settings will not have to be reprogrammed If the pump and heater were ON when the power went off they will be ON when power is restored to the heater If the controller is in the Internal Time Clock mode the only indication that power to the heater has been interrupted and the real time clock needs to be updated is that the clock will be flashing on the display When power is restored the clock will remember the time when the power went off and resume from that point on Therefore the clock will have to be reset Refer to Figure 18 to identify the location of keys and display items mentioned in the following sections NOTE All of the functions and limits of the LJ controller can be reset to the original manufacturer s default values by pressing and holding the ENTER key for 7 seconds HOLD FOR 7 SECONDS TORESET TO ORIGINAL MANUFACTURER S DEFAULT VALUES ENTER NORMAL SPA POOL CLOCK PROG FREEZ F C INVALID SERVICE HEATER COOL COMMAND DOUN bedded HA Ie PGOL GFF SPA ON OFF I 1 90 DOWN PUMP POOL OFF SPA Figure 18 LJ Controller and Display Page 22 _Jandy 7 2 1 Setting the Real Time Clock The REAL TIME CLOCK displays the cu
89. pe Heater Connection Threaded Unthreaded Iron Pipe 2 NPT 1 1 2 Copper Pipe 1 1 2 or 2 Plastic 2 NPI 2 Connections shown here are common sizes Other sizes may be connected see Section 5 5 for details Unthreaded 1 1 2 pipe may be used with special seals not included with this heater Threaded 2 CPVC nipples are supplied with the heater for connecting 2 PVC pipe Flow Rate Maximum 125 gpm 475 Ipm Minimum 30 gpm 110 Ipm Maximum Working Water Pressure 75 psi Exhaust Vent Connection Size See Figure 1 in Section 1 7 2 Electrical Supply Either 115 volts AC or 230 volts AC Page 4 11 Modification of Heater for High Altitude The Jandy Lite 2 model LJ heater is normally shipped from the factory in the low altitude sea level operational configuration When requested the heaters can be configured and shipped for higher altitudes For field conversions to change altitude configurations manifold kits for mid altitudes and high altitudes are available from your Jandy pool products dealer or by contacting the Customer Service Department at 707 776 8200 extension 245 See Section 11 Parts List of this manual for the correct kit number for the manifold assembly needed for your altitude Table 1 defines the altitude designations as described by the Standard for Gas Fired Pool Heaters ANSI Z21 56 in the United States and Gas Fired Appliances For Use At High Alti tudes CAN 1 2 17
90. ply is 230V aregular voltmeter will read only 49 64 VAC because of the way that voltage is reduced by the power distribution board However a true reading can be obtained by using an RMS voltmeter if one is available When using an RMS voltmeter a reading of 98 126VAC is expected This voltage will be applied only when there is an attempt to ignite the burner or when the ignition control s flame sensing system has determined that it is OK to allow burner operation Even if voltage has been confirmed at the end of the safety circuit the trial for ignition se quence is imposed by the ignition control This se quence consists of a 15 second period of pre purge a 10 second period for heat up of the igniter and a 12 second trial for ignition During this last 22 seconds there is voltage between test point 10 and test point 11 If satisfactory ignition is not achieved the igniter is turned off and the system waits for a 45 second post purge period The system may go through this cycle as many as three times but thereafter it is locked out by the ignition control Additional attempts will be made only if the call for heat is interrupted by turning off electrical power or setting the LJ controller to OFF and then back to POOL or SPA To troubleshoot the ignition control connect the voltmeter leads at test points 10 and 11 and set the LJ controller to call for heat Observe that the normal ignition sequence takes place A
91. point 3 The meter should show 10 14 volts If there is no voltage replace the transformer 10 4 3 2 Fuse Leaving the black voltmeter lead in place at test point 1 touch the free lead to the end of the fuse test point 4 The meter should read 20 28 volts If there is no voltage the fuse has failed Inspect the rest of the wiring especially the safety circuit to be sure that there is no short such as contact of a terminal with the heater chassis or another terminal which may have caused the fuse to fail Correct any such condition and replace the fuse 10 4 3 3 Fireman Switch and External Interlocks Check the voltage going to the external device Move the black voltmeter lead to test point 2 This lead can be left in place for most of the testing Touch the free lead of the meter to the fireman switch connector where the red wire is attached at the lower end of the connector test point 5 The meter should read 20 28 volts If there is no voltage there may be a bad connection on the power distribution board and the board may need to be replaced If voltage is detected at test point 5 move the free lead of the meter to the fireman switch connector where the other red wire is attached at the upper end of the connector test point 6 The meter should read 20 28 volts If there is no voltage the time clock switch or other external interlock may be mis adjusted mis connected or defective Correct this external problem 10
92. pump on or check to see that external time clock is synchronized with LJ controller time clock Clean filter or clear blockage check position of valves in plumbing system Check for air leaks in plumbing system Adjust or replace pressure switch Refer to qualified personnel Identify and correct cause of overheating Refer to qualified personnel Identify and correct loose connections or replace switches Refer to qualified personnel Identify and correct cause of overheating Refer to qualified personnel Identify and correct loose connections or replace fusible link Refer to qualified personnel Check for loose connections and inspect sensor wires and routing Replace temperature sensor Refer to qualified personnel Identify and repair incorrect supply pipe size or pipeline blockage Refer to qualified personnel Shutdown heater and restart If the heater does not ignite refer to qualified personnel Be sure that the manual gas cock and the automatic valve are in the ON position Check for loose wire connections at gas valve Replace gas valve Refer to qualified personnel Ensure that the flame sensor is aligned over the burner Refer to qualified personnel ldentify and correct loose connections Refer to qualified personnel Ensure that flame sensor is installed properly and is not in contact with burner or heater jacket Refer to qualified personnel
93. res l 2 Remove heater door Remove all 8 hex head screws fastening the top and lift the top assembly straight up see Figure 8 Remove rain shield assembly and set it aside Remove screws that fasten the gap closures to the jacket and put them aside Remove gap closures Remove the screws securing the two flue collector hold down clamps and remove the clamps see Figure 9 Remove flue collector Remove the three rubber jacket plug grommets and drain plugs see Figure 8 One is located under the water connections on the right side The other two are on the left side of the heater RETAINER BRACKET TEMPERATURE SENSING BULB SCREW ZS 2 LR Figure 10 Temperature sensing bulb LEFT RIGHT VESTIBULE VESTIBULE COVER COVER FRONT OF HEATER PLASTIC BUSHING Figure 11 Vestibule covers 7 Tag and disconnect the white wire on the pressure switch PS and the white wire from the fusible link 8 Remove plastic tie wraps and pull the white wires out of the front compartment through the vestibule cover and coil them on the heat exchanger 9 Unscrew the brass compression fitting securing the pressure switch to the inlet outlet header Remove tube from header and gently bend it out of the way 10 Loosen the screw securing the temperature sensing bulb retainer bracket Slide the retainer bracket off the bulb flange and remove the bulb from the header see Figure 10 Pull pressure switch tube throug
94. ressure Switch 1 PSI All R001 1300 19 Pressure Switch 1 10 PSI All R0015500 76 Complete Combustion Chamber Assy 125 400 R0383101 05 20 Siphon Loop Assembly All R0057800 21 High Limit Switch Assembly All R0023200 22 High Limit Switch 135 F All R0022700 23 High Limit Switch 150 F All R0023000 24 High Limit Switch Retainer Boot All 50098900 25 High Limit Switch Wire Harness All 10419301 Model LJ Pool and Spa Heater Key 77 78 79 80 81 82 83 Description JACKET COMPONENTS Door with Latch Jacket Assembly Less Top Assembly Gap Closure Inlet Outlet Gap Closure Return Button Plug 1 3 4 Button Plug 7 8 Button Plug 2 With hole for gas line Model Order No Part No 125 400 R0343601 05 125 400 R0343501 05 All R0344300 All R0344400 All F0035300 All F0032300 All F0056600 Page 45 Key Model Order No Description No Part No OPTIONAL COMPONENTS 84 Noncombustible Base 125 400 10521701 05 85 Pressure Relief Valve 3 4 NPT 75 PSI All R0040400 86 Touch Up Spray Paint Pewter All X0022700 87 Touch Up Spray Paint Black All X0022900 88 Remote Control Wire Harness All R0398400 Notes 1 Gaskets and hardware are included in all kits that require the removal of a gasket as part of the procedure to replace a part Item not shown on exploded views NOTES 79 Jandy HEAT EXCHANGER SEE NEXT PAGE FOR DETAIL UNITED STATES i 80 HEATERCONTROL SEE NEXT PAGE FOR DETAIL 41 43
95. rmanent air supply openings one within 12 installed without modification and in accordance with in 305mm of the ceiling the other within 12 in the instructions provided by the manufacturer 305mm of the floor All indoor installations must have openings to outside air for combustion ventilation and Une remise ext rieure au Canada seulement dilution of flue gases from inside the building see est un endroit inoccup qui ne communique pas Figure 5 and Table 3 Jandy Pool Products Inc does directement avec les endroits occup s Toutes les installations int rieures et remises ext rieures exigent Table 3 Air Openings to Outside Required Net Free Open Area for Combustion Air Openings from a from Mode l addition d une coupe tirage int rieur approuv e par le manufacturier La coupe tirage int rieur doit tre install e sans aucune modification et selon les exigences fournies par le manufacturier 125 SUE 7 a The applicable installation codes standards and ui d M lt eu Jandy Pool Products Inc require that the heater be SE properly vented as outlined in this manual Proper 400 ud 645 IN ventilation of exhaust and combustion air are essential Area indicated is for one of two openings one at floor level for the safe and efficient operation of the heater See and one at the ceiling so the total net free area would be double Section 3 the figures indicated For special conditions refer to NFPA5
96. roller does not show a display then it is defective Replace the controller If the LED is not on then check the control circuits as outlined in the following sections 10 4 3 Control Circuit Troubleshooting The heater controls and sensors are powered by three major circuits on a power distribution board PC board 115 VAC or 230VAC is brought to the power distribution board by the heater supply voltage The voltage is then transmitted through the board and the power conversion plug to the igniter and to a trans former When 115V is supplied to the heater the power conversion plug passes the signal unchanged to the igniter and configures the input to the transformer for 115V When 230V is supplied to the heater the power conversion plug modifies the voltage to 115V before sending it on to the igniter and configures the input to the transformer for 230V It is important to be sure that the correct side of the power conversion plug is plugged into the power distribution board The transformer converts the 115 volt AC or 230 volt AC supply into two separate outputs 24 volts AC and 12 volts AC These voltages are supplied back to the power distribution board where the 24 volt signal is used to power the fireman switch safety circuit and gas valve while the 12 volt signal is used to power the keypad controller Troubleshooting is done by probing for voltage at various points on the power distribution board and heater components to determine
97. roper ventilation for LP gas Locate heaters a safe distance 3 WAY CHANGEOVER SKIMMER CHEMICAL MAIN POOL _ x RETURN x CHECK VALVE RECOMMENDED WHEN CHEMICAL Pa FEEDER INSTALLED BALANCING AL VALVES E e FROM SKIMMER AND DRAIN 3 WAY CHECK CHANGEOVER VALVE VALVE MANUAL BY PASS MANUAL BY PASS DETAIL MANUAL BY PASS IS USED WHEN FILTRATION RATE EXCEEDS 125 GALLONS PER MINUTE Note When using metal pipe as heat sink join metal and PVC CPVC using metal male and PVC CPVC female connection Figure 7 Typical installation Model LJ Pool and Spa Heater Page 13 from LP gas cylinders and filling equipment Consult the National Fuel Gas Code NFPA 54 ANSI 4223 1 latest edition the Natural Gas Installation Code in Canada CAN CSA B 149 1 latest edition and any other local codes and fire protection authori ties about specific installation restrictions in your area SECTION 5 Water Connections 5 1 Water Piping Figure 7 illustrates typical piping for pool equip ment in pool spa combination pools For normal installations do not install a shutoff valve or any kind of variable restriction in the water piping between the heater outlet and the pool spa In special installations where a shut off valve diverter valve or other variable restriction is required in the plumbing between the heater outlet and the pool Jandy Pool Products Inc recommends the installation of a pressure relief valve on the heat
98. rrent time when the heater is set to the Internal Time Clock mode see Section 7 4 Heater Control Opera tion In the event of a power interruption the control ler remembers the last value of each setting including the REAL TIME CLOCK Any start ups after a power interruption will cause the display to flash the time that the power went off It is important to reset the REAL TIME CLOCK anytime the power to the heater has been interrupted so that the PUMP TIME CLOCK operates the pump at the desired times To set the REAL TIME CLOCK perform the following steps l Press the MODE key repeatedly until the words CLOCK SET appear at the top of the display screen Ec gt gt MODE CLOCK SET 2 Press the ENTER key The hour indicator in the lower right corner of the display will start to flash ie E p 2100 PM LD ENTER 3 Press the UP or DOWN key to adjust the hour The PM indicator shows for PM time There 1s no indicator for AM time TE gt gt o UP DOWN 4 When the hour is set correctly press the ENTER key The minutes indicator will start to flash RAI ENTER 5 Press the UP or DOWN key to adjust the minutes Lis got gt gt psz UP DOWN Ad 6 When the minutes are set correctly press the ENTER key The minutes indicator will stop flashing and the word NORMAL will appear in the upper left corner of the display screen to indicate that the time has been set and the h
99. shows that the heater is OFF b Turn the filter pump off by pressing the PUMP key and allow up to five minutes for the pump to shut down 7 8 c Turn off the power to the filter pump at the circuit breaker d Remove thermometer and Pete s plug e Replace the drain plug f Turn on the power to the filter pump at the circuit breaker g Return the pool temperature control to the desired temperature Repeatedly depress the MODE key until the indicator at the top of the display shows POOL SET Press the ENTER key Then use the UP and DOWN keys to set the heater to the desired temperature Press the ENTER key again Adjusting the Manual Bypass Valve After the manual bypass valve is installed use the following procedures to adjust the bypass valve l 2 10 Make sure the pool filter is clean If the filter pump is on turn it off by pressing the PUMP key and allow up to five minutes for the pump to shut down Turn off the power supply to the heater at the circuit breaker panel Remove the drain plug located on the inlet outlet header of the heater and replace it with a Pete s plug see Figure 15 Insert a pocket thermometer see Figure 15 through the Pete s plug into the header Turn the circuit breaker on to supply the heater with power Close manual bypass valve Set the controller to OFF by repeatedly depress ing the SELECT key until the display shows that the heater is OFF Repe
100. summertime You can reduce heater usage due to warmer air temperatures 3 Find the proper setting on the pool heater tem perature control and use the Keypad Lock function to discourage further adjustments 4 Set the pump time clock to start the pump no earlier than 6 00 AM during the pool heating season This is the time when nightly heat loss balances 5 Ifthe pool is only going to be used on weekends reduce the heater temperature control setting by 8 or 10 degrees during the week Reset it to the 78 F 25 C level a day or so before you plan to use the pool 6 During the winter or when on vacation for longer than a week shut down the heater by following the shutdown instructions found on the inside of the heater 7 Where possible shelter the pool from prevailing winds with well trimmed hedges or other land scaping cabanas or fencing 8 Always use a pool cover when practical Besides providing a valuable safety feature a pool cover will reduce heat loss conserve chemicals and reduce the load on filter systems 1 3 Warranty The Lite2 heater is sold with a limited factory warranty Details are specified on the back cover of this manual Make all warranty claims to an authorized Jandy representative or directly to the factory Claims must include the heater serial number and model this information can be found on the rating plate installa tion date and name of the installer Shipping costs are not included
101. t the end of the pressure switch tube into inlet outlet header and tighten the fitting FOR CPVC OR PVC PIPE USE 18 Routethe white wiring from the high limit switches beside the heat exchanger and down to PLASTIC SLEEVE the original location following the pressure switch tubing Secure white wires to the pressure switch tube with plastic wire ties vee NIPPLE PROVIDED 19 Connect the white wire labeled PS to the pres sure switch and the other white wire to its original location on the fusible link Figure 13 Piping installation Page 16 HEADER CPVC NIPPLE SUPPLIED IN HEATER I 4 2 in PVC FITTINGS PVC CEMENT ONLY TO GLUE JOINTS CPVC PIPE E PVC PIPE Figure 14 Plastic piping connections USE CPVC TO are outside the heater jacket Fasten the top assembly with the hex head screws 27 Install plastic tie wraps on wiring in the vestibule controls compartment 28 Install heater door 5 5 Connections at Heater The heater has 2 NPT universal header cou plings You can connect threaded 2 NPT iron pipe or unthreaded 2 copper pipe using the seals included with this heater see Figure 13 Unthreaded 1 1 2 iron or copper pipe may be used with special seals available from your Jandy distributor However by installing the appropriate pipe adapters other sizes may also be used Plastic piping PVC Schedule 40 can be con nected to the heater if local codes allow it by using
102. tallations that depend on internal air for combustion Combustion air should be ducted to the heater from outside the structure Outside Air Supply When combustion air is supplied directly through an outside wall each opening should have a minimum free area of one square inch per 4 000 BTU h 1 2kW input of the total input rating of all appliances in the enclosed area If air is provided through horizontal ducts each opening and duct must provide one square inch of flow area for each 2000 BTU h 0 6 kW These requirements are summarized in Table 3 Note that the areas specified are net free areas and should be increased when the openings are covered by screens louvers grills or other protective covers see Figure 5 and Table 3 notes NOTE In Canada follow Canadian Standard CAN CSA B149 1 or local codes Exhaust Fans or Vents Any equipment which exhausts air from the room where the heater is installed can deplete the combustion air supply or reverse the natural draft action of the venting system This could cause flue products to accumulate in the room Additional air must be supplied to compensate for such exhaust The information in Table 3 is not applicable in installations where exhaust fans or blowers of any type are used Such installations must be designed by qualified engineers The heater must be completely isolated and protected from any source of corrosive chemical fumes such as those emitted by trichlorethylene per
103. ted to turn the heater off when the pump is off Setting the switch to close at too low of a flow can damage the appliance Adjust the switch to turn the heater off not on ATTENTION Le manocontact de pression d eau doit tre r gl de facon ce que l appareil cesse de fonctionner si la pompe s arr te Si le manocontact est r gl pour se fermer lorsque le d bit d eau est trop faible l appareil risque de s endommager Reglez le manocontact pour qu il arr te l appareil et non pour qu il le mette en marche The pressure switch is preset at the factory for activation at 2 psi 14 kPa Adjust the pressure switch only if any part of the filter system piping is 3 feet 0 91 m or more above the top of the heater jacket Do not adjust the pressure switch if the heater is installed more than 15 feet 4 57 m above or 6 feet 1 83 m below the pool surface Consult your local Jandy representative for recommendations On some installations the piping from the heater to the pool is very short The back pressure could be too low to trigger the pressure switch If this happens it may be necessary to install a directional fitting or elbows where the return line enters the pool This will increase back pressure enough for the heater to operate properly Make sure the pool filter is clean before making any pressure switch adjustment A dirty filter will restrict the water flow and the pressure switch cannot be adjusted prop
104. the CPVC nipples included with your heater To install plastic piping see Figure 14 l Remove CPVC nipples from plastic bag 2 Screw CPVC nipples into metal flange until tight using Teflon tape on plastic threads 3 Prepare the end of the pipe with the proper adapter PVC CPVC primer and glue Follow the manufacturer s instructions provided with the primer and glue for preparation procedures and curing times 5 6 Pressure Relief Valve A pressure relief valve PRV is recommended in all installations and is mandatory in any installation in which the water flow can be shut off between the heater outlet and the pool spa A pressure relief valve is not supplied with the PRESSURE RELIEF VALVE THERMOMETER 20 TO 130 F Figure 15 Thermometer and pressure relief valve heater However it may be required by local codes The pressure rating of the valve should be at or below the lowest working pressure of any component in the filter system Any pressure relief valve installed must comply with provisions of the Standard described in ANSI Z21 22 for the United States or CAN1 4 4 in Canada To install a pressure relief valve do the following 1 Remove the 3 4 inch 19 mm brass plug located on the top of the inlet outlet header see Figure 14 2 Install the pressure relief valve in the threaded hole from which the plug was removed 3 Be sure that the exhaust port of the PRV is plumbed so that any hot water
105. the Installer After installation these instructions must be given to the homeowner or left on or near the heater To the User This booklet contains important information that will help you in operating and maintaining this heater Please retain it for future reference _Jandy TABLE OF CONTENTS SECTION1 General Information 1 1 IAHOQUCIOS 2 a ei 1 2 Consumer Information and Safety 1 2 1 Spa Hot Tub Safety Rules 1 2 2 Swimming Pool Energy Safety Tips 1 3 Warnan PR 1 4 Codes and Standards 1 5 Technical Assistance 1 6 Materials Installer Must Provide 1 6 1 Materials for All Applications 1 6 2 Materials for Special Applications 1 7 ney S 21e1 i 61211 6 Me NP M OE 1 7 1 General Specifications L2 DIMENSIONS Re a rte a SECTION2 Installation Instructions 2 1 Introduction eeeeeeeeeeeeeeesee 2 2 Field Assembly sasicussicccdssaviwenaddsimiannaties 2 3 Location Requirements Boek IRON teaser G cM Eden renase 2 3 2 Clearances eeeeeeeeeesees De IDC na nU TIO TIEF 2 3 4 Outdoor Installation 2 3 5 Indoor and Outdoor Shelter Installation eese SECTIONS Venting Combustion Air Supply 3 2 Vent Pipe Sizing and General Installatio
106. tion when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing ATTENTION Au moment de l entretien des commandes tiquetez tous les fils avant de les d brancher Des erreurs de cablage peuvent entrainer un fonctionnement inadequat et dangereux 6 1 General Information Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the heater see Figure 16A The heater must include a definite means of grounding There is a bonding lug on the right side of the heater where a bond wire must be attached The LJ heater controller has a built in time clock to run the pump so an external time clock is not needed To utilize the internal time clock instead of an external time clock the power for the pump must be wired through the heater A separate relay must be added to correctly wire the power to the pump The relay may be purchased from your local Jandy distribu tor Jandy Pool Products Inc recommends the use of Jandy part number R0658100 because it is supplied with the wire harness that is needed to connect the relay to the power circuit board 6 2 Main Power Electrical wiring must be in accordance with the latest edition of the National Electric Code NEC ANSI National Fire Protection Association NFPA 70 unless local code requirements indicate otherwise The heater comes factory wired intended for use with 230 Volt
107. ump is turned off while the heater is running service code FLO will be displayed because the water pressure switch will detect the drop in water pressure and open the safety circuit When the pump is restarted the water pressure switch will close and the heater will resume normal operation Service code FL temperature sensor shorted will reset after the short has been repaired or a new sensor installed The display will show the normal operating icons Page 36 _Jandy LITE2 LJ CONTROLLER HEATER SERVICE DIAGNOSTIC GUIDE SERVICE CODE CAUSE FL 0 open switch in the safety circuit FL 1 temperature sensor FL 2 failed ignition Pressure Switch Opened A Pumpis not running B Lowpump water pressure C Airis in the water line D Pressure switch fault Hi Limit Switch Tripped A Watertemperature in heater exceeds the internal limit B Limit switch fault Fusible Link Opened A Internal cabinettemperatures exceed the fusible link limit B Fusible link fault Temperature Sensor Error A Temperature sensor opened or shorted B Failed sensor Nolgnition A Low gas supply pressure B Airin gas line C Nogasflowing D Gasvalvefault Ignition but no Flame Sensing Capabilities A Flame sensor is not in the flame B Flame sensor circuit is open C Flame sensor rod is grounded D Flame sensor circuit is shorted REMEDY A A Turn
108. vary by as much as 1F 1C 5 Persons with a medical history of heart disease diabetes circulatory or blood pressure problems should consult their physician before using a hot tub or spa 6 Persons taking any medication which induces drowsiness e g tranquilizers antihistamines or anticoagulants should not use spas or hot tubs 7 Prolonged immersion in hot water can induce hyperthermia Hyperthermia occurs when the internal body temperature reaches a level several degrees above the normal body temperature of 98 6 F 37 C Symptoms include dizziness fainting drowsiness lethargy and an increase in the internal body temperature The effects of hyperthermia include Page 2 _Jandy Lack of awareness of impending hazard Failure to perceive heat Failure to recognize need to leave spa Physical inability to leave spa Fetal damage in pregnant women Unconsciousness resulting in a danger of drowning 1 2 2 Swimming Pool Energy Saving Tips Jandy Pool Products Inc offers the following recommendations to help conserve fuel and minimize the cost of operating your pool heater without sacri ficing comfort 1 The American Red Cross recommends a maxi mum water temperature of 78 F 25 C Use an accurate pool thermometer A difference of 4F 2C between 78 F and 82 F 26 C and 28 C will use as much as 40 more gas 2 Carefully monitor the water temperature of your pool in the
109. vent cap part number See instructions supplied with the draft hood or vent cap for installation and attachment When the draft hood is used locate the heater so as to be in the same atmospheric pressure zone as the combustion air inlet to the heater Model LJ Pool and Spa Heater Page5 2 3 Location Requirements ATTENTION Lorsque l quipement d une piscine est situ sous la surface de l eau une fuite provenant de n importe quel l ment peut causer une perte 2 3 1 Introduction Caution When pool equipment is located below the pool surface a leak from any component can cause d eau importante ou une inondation Jandy Pool Products Inc n est pas responsable des pertes d eau des inondations ou des avaries caus es par une installation ou un entretien inad quat large scale water loss or flooding Jandy Pool Products Inc cannot be responsible for such water loss or flooding or resulting damage VENT CAP DRAFT HOOD 3 3 8 in 8 57 cm 20 3 cm 28 1 2 in 72 4 cm 3 1 2 in 8 9 cm GAS CONNECTION FAR SIDE 13 1 8 in 33 3 cm Dimensions Firing Rate Hr U S Indoor or Vent U S Outdoor CAN Outdoor 1 000 s Diameter Dim H Shelter Dim H 17 3 8 16 1 4 125 32 18 5 18 1 4 25 1 4 250 63 18 7 8 261 2 3 82 211 2 5 271 2 70 Ratings shown are for both natural and propane gas 22 1 2 263 44 25 313 4
110. vent pipes and caps must be of the same diameter as the exhaust outlet of the heater Approved vent caps may be obtained through your Jandy distributor 3 2 2 Indoor and Outdoor Shelter Installations WARNING Vent pipe diameter must be as required by the National Fuel Gas Code Z223 1 or the Canadian Installation Codes for Gas Appliances CAN CSA B149 1 Undersize pipe can result in inadequate venting and oversize pipe can result in vent condensation In either case the result can be release of combustion products to the indoors This can cause serious injury or death by carbon monoxide poisoning or asphyxiation AVERTISSEMENT Le diametre des tuyaux de ventilation doit r pondre aux exigences du National Fuel Gas Code Z223 1 ou du Code Canadien des Installations des Appareils Gaz CAN CSA B149 1 Des tuyaux trop petits risquent d entrainer une ventilation inad quate et des tuyaux trop gros risquent de provoquer une condensation dans les tuyaux Dans un cas comme dans l autre des produits de combustion risquent de s chapper dans le b timent et causer des blessures graves ou l asphyxie par le monoxyde de carbone All indoor installations and outdoor shelter installations require the addition of a factory approved Page 10 _Jandy draft hood The draft hood must be installed without modification All vent installations must be made in accordance with all local state or provincial codes and with 1 Chapter co
111. vering Venting of Equipment of the National Fuel Gas Code ANSI 223 1 latest edition or the applicable provisions of the local building codes 2 In Canada CAN CSA B149 1 Avoid long horizontal runs of the vent pipe and 90 elbows reductions and restrictions Horizontal runs should have at least a 1 4 inch rise per foot 20mm per meter in the direction of flow Avoid terminating heater vents near air condition ing or air supply fans The fans can pick up exhaust flue products from the heater and return them inside the building creating a possible health hazard Do not locate the vent terminal where flue products could strike against building materials and cause degradation Vent opening should be well away from trees or other obstructions that would prevent free air flow to and from vent terminal Do not terminate the vent under decks stairways or car ports Be sure to support all venting so that connections will not separate and so that the weight of the vent pipe does not rest on the heater draft hood All con nections should be made with rustproof sheet metal screws Do not weld or fasten the vent pipe to the heater draft hood The draft hood and heater top must be easily removable for normal heater service and inspection The draft hood outlet is to be connected to an unobstructed vent pipe of the same diameter terminat ing outside the building The vent must terminate at least two 2 feet 0 6 m above the highest
112. witch connection An interrupt on off type remote switch can be connected to the heater To connect a remote ON OFF type switch to the heater remove the wire nut from the two red leads of the wire harness that connects to the Fireman Switch connection on the power circuit board see Figure 19 Connect the wires from the switch to the leads on the wire harness This type of remote control will turn the heater on or off but will not switch between pool and spa settings or allow for temperature adjustments These functions are still controlled at the LJ controller on the heater The LJ heater also accommodates the use of a more functional remote control Remote controls that provide their own temperature sensor such as the Jandy AquaLink RS remote control systems can be Page 28 _Jandy 1O CONTROLLER Fassy SENSOR i IL JLOIGAS VALVE SAFETY CIRCUIT i d Cuve EJetower POWER IN SELECT PLUG IGNITER Figure 19 ON OFF Type remote switch wired to the Fireman Switch connection The LJ controller must first be set up to recognize the remote mode The set up consists of setting the PROGRAM pump time clock ON and OFF times to run for 24 hours setting the controller function to SPA and setting the spa temperature to 104 F 40 C To set the LJ controller for remote control use follow the instructions at the beginning of this section setting the controller into the External Time Clock mode T
113. y pipe size or pipeline blockage Refer to qualified personnel Ensure proper wiring See wiring diagram in manual or on door of heater for details Refer to qualified personnel Replace flame sensor Locate and repair leak Install restrictive fitting at pool spa outlet Refer to qualified personnel Carefully inspect heater for signs of fire damage Refer to qualified personnel Replace controller Refer to qualified personnel Check fuses on igniter wires Identify and correct loose connections or broken wires Refer to qualified personnel Measure room temperature resistance and ensure value is in the correct range See manual for details Refer to qualified personnel Replace igniter Refer to qualified personnel No Service Required Heater will automatically reset itself once proper voltage is restored If error persists Refer to qualified personnel Reverse power conversion plug Replace power module board Refer to qualified personnel ldentify and correct loose connections Refer to qualified personnel Replace power module board Refer to qualified personnel Page 38 _Jandy Service code FL3 flame detected when no flame should exist will reset after the problem has been resolved Service code FLS brown out condition exists will also reset after the condition has been resolved However the reset may take up to 3 minutes The LJ contro
114. y three of these service codes are reconcil able without the services of a qualified technician The first is the case where the heater does not start after the first three attempts FL2 This may occur after a prolonged period of nonuse of the heater especially at Spring start up However the repeated appearance of this error requires the service of a qualified technician The second case is that of a temporary brown out condition FL5 If the brown out is regional then the controller will automatically reset when full power is restored by the electric company However if the brown out is due to a low voltage supply problem only on the heater circuit then immediately shut off the electrical supply to the heater and call a certified electrician The last case is the filter is dirty condition FLO Model LJ Pool and Spa Heater Page 35 Troubleshooting Table Symptom Cause Remedy 1 Pump not A No power 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 E Current time not within time clock settings F Controller defective D Replace pump relay E Set time clock and current time F Replace controller 2 Flame roll out A Blocked flue on start up B Igniter out of position delayed ignition C Blocked heat exchanger D Refractory blanket out of place E Altered draft
115. y under normal condi tions Periodic inspections especially at Spring start up are important to keep your heater running safely and efficiently through the years Improper mainte nance can result in conditions where nausea or asphyxiation from carbon monoxide or flue gases could cause severe injury property damage or death WARNING Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury or death Model LJ Pool and Spa Heater Page 33 AVERTISSEMENT Une installation ou un entretien inad quat peut causer la naus e ou l asphyxie en raison du monoxyde de carbone pr sent dans les gaz de combustion et m me entrainer des blessures graves ou la mort 8 3 1 Owner Inspection Jandy Pool Products Inc recommends that you inspect the heater on a continual basis and especially after abnormal weather conditions The following basic guidelines are suggested for your inspection 1 Keep the top and surrounding area of the heater clear of all debris 2 Keep the area around and beneath the heater clean and free of all combustible materials such as paper leaves etc 3 Do not store or use gasoline or other flammable vapors liquids or chemicals in the vicinity of this or any other appliance Ne pas entreposer ni utiliser d essence ni d autres vapeurs ou liquides inflammables proximit de cet appareil ou de tout autre
116. ze Temperature 23 Setting the Internal Pump Time Clock 24 Lighting and Shutdown Procedures 24 Heater Controller Operation 24 Normal Operation 26 Pump Operation uec ento ne 26 Pump Operation in External Time Clock Mode ss 26 Pump Operation in Internal Time Glock MOUSE ener 27 Locking Unlocking the Keypad 27 Remote Control Operation 27 Remote Control Connected At Fireman Switch Terminal Block 27 Remote Control Connected At The Heater s Control Panel 28 Water Pressure Switch Adjustment 28 Temperature Rise 29 Adjusting the Manual Bypass Valve 30 TABLE OF CONTENTS cont d SECTIONS Maintenance 8 1 Water Chemistry 31 8 2 Seasonal Care 31 8 2 1 Spring and Fall Operation 31 8 2 2 Winterizing dessus unam ea 31 8 2 3 Spring Start up eesiesatuaauncsct sistat esiuepas 32 8 3 Inspection and Service 32 8 3 1 Owner Inspection 33 8 3 2 Professional Inspection 33 SECTIONY Troubleshooting 9 1 General Heater Troubleshooting 34 9 2 LJ Controller Service Codes 34 9 2 1 Explanation of Error Codes 34 9 2 2 Resetting the LJ Controller Service Codes eeeeeseess

Jandy Lite2 LJ125 Ceramic Gas Heater

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