Jandy LXi, Installation And Operation Manual

Page 1: ...and Operation Manual LXi Gas Fired Pool and Spa Heater Model LXi Natural Gas and LP WARNING If these instructions are not followed exactly a fire or explosion may result causing property damage perso...

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Page 3: ...r Installations 14 3 3 3 Inspection and Replacement of Existing Vent System with New Components 15 Section 4 Gas Connections 16 4 1 Gas Supply and Piping 16 4 2 Manifold Pressure 17 4 3 Special Precau...

Page 4: ...ofessional Inspection 39 Section 9 Troubleshooting 40 9 1 General Heater Troubleshooting 40 9 2 Service Codes 40 9 3 Ignition Control LED Service Codes 40 Section 10 Professional Maintenance and Servi...

Page 5: ...mply with all of the warnings and cautions 1 2 1 Spa Hot Tub Safety Rules WARNING The following Safety Rules for Hot Tubs recom mended by the U S Consumer Product Safety Commission should be observed...

Page 6: ...safety feature a pool cover will reduce heat loss conserve chemicals and reduce the load on filter systems 1 3 Warranty The LXi heater is sold with a limited factory war ranty Details are specified o...

Page 7: ...n addition to the items listed above the follow ing items are needed for special applications 1 A factory authorized vent collar and any vent pipe needed for indoor installations in the USA and outdoo...

Page 8: ...For Use At High Altitudes CAN1 2 17 in Canada When an LXi heater is to be installed in a high altitude application the burner throat pressure will need to be adjusted to achieve 1 0 WC See Section 10...

Page 9: ...t Check the rating plate on the heater or the Parts List Section 11 2 in this manual for the correct Jandy vent collar part number For specific installation infor mation see Section 2 3 5 Indoor and O...

Page 10: ...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 mm in all directions The masonry must be laid...

Page 11: ...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 on it Water from sprinklers may cause damage to...

Page 12: ...rea as outlined in the latest edition of ANSI standard Z223 1 NFPA 54 or in Canada CAN CSA B149 1 and any local codes that may be applicable In general these requirements specify that the room in whic...

Page 13: ...st 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...

Page 14: ...ovisions of additional applicable local building codes may also need to be followed 2 In Canada CAN CSA B149 1 Avoid terminating heater vents near air con ditioning or air supply fans The fans can pic...

Page 15: ...erminal at a minimum of 1 4 per horizontal foot 2 cm m The LXi is designed for Category III venting with a maximum of 25 ft 7 6 m of vent pipe and up to 3 elbows For each additional elbow reduce the m...

Page 16: ...followed ATTENTION Vous endommagerez la soupape de gaz si vous ne respectez pas les proc dures suivantes 3 Use the figures in Table 5 to size the gas inlet piping from the gas meter to the heater Che...

Page 17: ...2 5 WC Propane heaters should be set to 9 WC ATTENTION La pression du collecteur de pression pour les syst mes de chauffage au gaz naturel devrait tre de 2 5 WC Pour les syt mes de chauffage au gaz p...

Page 18: ...re generally done before the installation of power and water to the heater If you need to reverse the heat exchanger on a previously installed heater be sure that Section 5 Water Connections 5 1 Water...

Page 19: ...e wires out of the cabinet so that they hang free from the header outside of the cabinet 7 Disconnect the yellow Water Press two pin connector from the Power Interface board in the raceway Clip any wi...

Page 20: ...ector on the Power Interface board 19 Route the wires that attach to the temperature sensor back to the Power Interface board in the raceway Reconnect the wires to the WATER TEMP terminals on the Powe...

Page 21: ...spa be sure to close all shut off valves between the heater and the pool 5 Remove the drain plugs and drain the heater See Figure 15 NOTE Be sure to use 2 or 2 schedule 40 PVC pipe 6 Clean the cut en...

Page 22: ...p to the coupling and tighten it to the threaded connection on the header See Figure 17 NSF is a registered trademark of NSF International 5 6 Pressure Relief Valve A pressure relief valve PRV is reco...

Page 23: ...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...

Page 24: ...WATER PRESS SWITCH 130F LIMIT SWITCH 150F LIMIT SWITCH FUSIBLE LINK GAS VALVE WATER TEMP SENSOR OPT TEMP SENSOR BL W BK TO PUMP STARTER CONTACTS IF USED TO COMBUSTION AIR LOUVER STARTER IF USED W FUS...

Page 25: ...e wire tie Unplug the voltage selector board from the receptacle See Figure 23 3 Rotate the voltage selector board 180 and reinsert it into the receptacle so that the hole in the board is not visible...

Page 26: ...N TEMP feature to be functional a relay must be installed and a dedicated line from the pool pump time clock to the Maintain Temp Pump Relay is needed See Figure 24 The relay and pertinent instruction...

Page 27: ...Control System or Remote TSTAT 2 Wire Connection An interrupt on off type remote can be connect ed as a Remote TSTAT as described in this section This type of remote control will turn the heater on o...

Page 28: ...ent 1 707 776 8200 extension 245 for information on the correct RS Control System to meet your needs To provide smart communication between the LXi and an AquaLink RS PCB Board through a red four pin...

Page 29: ...creates this situation then a Multi plexing PCB kit must be used Call your distributor or Jandy Pool Products Inc to order the kit To connect the LXi to your RS control system refer to Figure 29 and f...

Page 30: ...rovide three 3 ad ditional attempts without waiting an hour turn off the control and then put it back in either the Pool or Spa mode 7 2 Start Up WARNING For your safety when starting the heater keep...

Page 31: ...the wa ter This will remove any installation residue from the water Clean the filter at the end of this operation be fore starting the heater Start the heater in accordance with the Operating Instruc...

Page 32: ...by pressing the Up or Down button until the desired set point is displayed After 5 seconds of inactivity the new set point is stored in memory 7 3 4 Spa Mode Normal Heat To enable the spa mode press S...

Page 33: ...ess POOL or SPA to exit the User Setup mode 7 4 4 Display Light Setup 1 Make sure the control is in the OFF mode 2 To enter the User Setup mode press and hold the MENU button for 5 seconds 3 To select...

Page 34: ...ne pas utiliser le t l phone dans le b timent Appeler imm diatement la compagnie de gaz en utilisant le t l phone d un voisin Suivre les instructions donn es par celle ci Si l on n arrive pas joindre...

Page 35: ...door and turn the gas valve knob clockwise to off 5 Shut off the external gas supply valve to the heater 7 7 Adjusting the Water Pressure Switch CAUTION The water pressure switch should be adjusted t...

Page 36: ...ng on how dirty the filter is For most installations an external bypass valve is not needed in the heater water piping This is due to the large size of the heater s internal bypass valve If the pump f...

Page 37: ...pressure The air pressure will drop as more of the slider covers the air orifice The air pressure will increase as more of the air orifice is exposed The pressure should be adjusted to 1 0 WC See Sect...

Page 38: ...k for mineral buildup in the openings 6 Use compressed air to blow out any standing water remaining in the heat exchanger 7 Inspect the gaskets on the drain plugs and rein stall plugs but do not tight...

Page 39: ...d away from any area that may be damaged by water 4 Be sure all combustion air and ventilation open ings are not blocked Check for spider webs and other debris inside the heater in the vents on all si...

Page 40: ...solutions encountered 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 wil...

Page 41: ...ure adjust to 1 0 W C 6 Not enough heat A Inadequate gas supply B Low manifold gas pressure C Heater size inadequate D Temperature rise set incorrectly A Gas meter too small Gas line from meter to hea...

Page 42: ...rsonnel FAULT CHECK IGN CONTROL 1 Broken split pinched or disconnected fan switch tubing 2 Fan not operating 3 Fan running slow or premature fan failure 4 Air flow restricted at intake or discharge 5...

Page 43: ...e 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 exhaust vent grill or rear louvers which supply combustion ai...

Page 44: ...ues Premix Combustion System 10 4 1 System Operation Premix combustion systems are less tolerant of fuel and air imbalance than other technologies Fuel gas properties incorrect supply or manifold pres...

Page 45: ...ecked with the heater not set to fire All other procedures need to be checked with power correctly supplied to the heater all external devices set so that the heater is allowed to fire and the heater...

Page 46: ...nal However verifying voltage at any of the numbered points in that circuit confirms that all prior components of the circuit are operational 10 5 3 1Transformer Set the voltmeter to measure AC voltag...

Page 47: ...ell in the outlet of the header Move the red meter lead to the terminal connec tion on the 150 switch that is connected back to the controller The voltmeter should read 20 28 Volts AC nominal No volta...

Page 48: ...igniter heat up or trial for ignition Even if voltage has been confirmed at the end of the safety circuit the trial for ignition sequence is imposed by the ignition control This sequence consists of a...

Page 49: ...T LOPRESS FUSELINK WATER PRESS REMOTE SPA POOL COM REV VALVE 24VAC PUMP COMP IGN FAN LOUVER JVA INTAKE JVA RETURN UNIVERSAL CONTROLLER POWER INTERFACE UNIVERSAL CONTROLLER USER INTERFACE POWER INTERFA...

Page 50: ...IR FLOW SWITCH WATER PRESS SWITCH GAS VALVE TO PUMP STARTER CONTACTS IF USED TO COMBUSTION AIR LOUVER STARTER IF USED O O Y BK BR Y BR Y Factory Wired 24V Factory Wired 120V 240V BK BLACK BK Y BLACK W...

Page 51: ...ring Set of 3 All R0454400 13 Heat Exch Hardware Kit Gaskets All R0454500 14 Cap Sensor Press Switch O ring All R0455400 15 Return Header Cap O ring All R0454600 Gas Components 16 Burner w Gasket All...

Page 52: ...p Assy 250 300 400 R0459503 04 05 66 Front Support Door 250 300 400 R0459903 04 05 67 Housing Air Chamber 250 300 400 R0460003 04 05 68 Cover Air Chamber 250 300 400 R0460103 04 05 69 Cover Manifold A...

Page 53: ...l Spa Heater Installation and Operation Manual Page 53 11 3 General Exploded View 23 65 50 49 25 22 19 66 62 61 57 20 18 17 71 41 16 67 68 52 69 70 55 56 59 58 62 60 32 34 35 1 33 27 63 64 25 53 54 36...

Page 54: ...Page 54 LXi Pool Spa Heater Installation and Operation Manual 11 4 Detailed Exploded View 33 48 28 47 5 7 6 17 10 12 2 3 11 37 38 40 12 8 39 15 11 30 29 32 14 31 4 qty 2 8 8...

Page 55: ...LXi Pool Spa Heater Installation and Operation Manual Page 55 2 3 72 74 75 75 79 29 76 83 84 84 35 38 39 40 11 11 84 30 73 80 81 82 77 78 11 5 Exploded View of Heat Exchanger ASME...

Page 56: ...s at water flow rates outside the published minimum and maximum specifications 7 Use of non factory authorized parts or accessories in conjunction with the product s 8 Chemical contamination of combu...