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  4. Lite 2 LC
  5. Installation And Operation Manual

Laars Lite 2 LC Installation And Operation Manual

Summary of Lite 2 LC

  • Page 1

    For your safety - this product must be installed and serviced by a profes- sional service technician, qualified in pool heater installation. Improper installa- tion and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper i...

  • Page 2

    Table of contents section 1. General information 1a. Introduction ................................................... 1 1b. Description ................................................... 1 1c. Warranty ....................................................... 1 section 2. Installation instructions 2a...

  • Page 3

    Model lc (australia) pool and spa heater page 1 section 1. General information 1a. Introduction this manual provides information for the proper installation, operation and maintenance of the laars lite 2 model lc (australia) pool heater. The heater is approved by the australian gas association for u...

  • Page 4

    Page 2 safe operation at the proper gas manifold pres- sure requires correct sizing of supply gas pipe. The gas installation code ag601 also offers general criteria for gas piping (see section 2d). If the above installation requirements are not followed, the fuel used in these appliances could produ...

  • Page 5

    Model lc (australia) pool and spa heater page 3 2c. Indoor installation the laars lite 2 model lc (australia) heater is design-certified for indoor installation only when equipped with a draft hood. Check the rating plate or the parts list (section 6) for the correct laars draft hood part numbers. I...

  • Page 6

    Page 4 figure 4. Proper design for sediment trap / drip leg 2c-2. Combustion and ventilation air supply all indoor installations must have openings to outside air for combustion and ventilation. Tables 1 and 2 (see fig. 3) show the net free opening areas required at both ceiling and floor for the di...

  • Page 7

    Model lc (australia) pool and spa heater page 5 to install a time clock switch into the heater wiring, follow these steps (see fig. 6): 1. Remove the heater door. 2. Remove the factory-installed wire between terminals 1 and 2 on the terminal block (see fig. 7). 3. Connect the wires from the time clo...

  • Page 8

    Page 6 install a check valve if there is any chance of "back-siphoning" when the pump stops. Do not install any other valve or variable restriction in the piping between the heater outlet and the pool, unless it is being used as a diverter valve. 2g. Pressure relief valve a pressure relief valve is ...

  • Page 9

    Model lc (australia) pool and spa heater page 7 figure 9. Typical installation important: equip the chlorinator with an antisiphoning device so that chlorine will not siphon into the heater after the pump shuts off. Wire the chlorinator so it cannot operate unless the filter pump is running. If the ...

  • Page 10

    Page 8 warning propane gas: to avoid possible injury, fire and explosion, read and follow these precautions and all instructions on this appliance before lighting the pilot. If this appliance uses propane gas which is heavier than air, it will remain at ground level if there is a leak. Before lighti...

  • Page 11

    Model lc (australia) pool and spa heater page 9 on propane heaters, if the pilot does not ignite within 15 seconds, the system locks out and turns off power to the whole system. To check the lockout on the ignition control, turn the gas valve knob off. Set the thermostat to call for heat. Sparking o...

  • Page 12

    Page 10 3e. Winterizing in areas where freezing temperatures occur, and you don't plan to use the pool or spa, have your service technician perform the following steps: 1. Shut off the gas valve and external supply line valves. 2. Completely drain the heater before the first frost. To drain the heat...

  • Page 13

    Model lc (australia) pool and spa heater page 11 table 6. Chemical levels recommended test level free chlorine 1.0 - 3.0 ppm or bromine 2.0 - 4.0 ppm ph 7.2 to 7.6 total alkalinity 100 to 150 ppm (ta) calcium hardness 200 to 400 ppm (ch) langelier saturation -0.5 to +0.5 index (si) cyanuric acid 30 ...

  • Page 14

    Page 12 section 4. Maintenance important: an authorized service technician can use the material in this section for testing and repairing the lc (australia) heater. It includes step-by-step procedures for troubleshooting the electrical control system and other parts of the heater. Review these proce...

  • Page 15

    Model lc (australia) pool and spa heater page 13 4c. Electrical troubleshooting an authorized service technician, qualified in pool heater maintenance, should do all troubleshooting and repairing on the lc (australia) heater. Before calling a service technician, the heater owner can check the follow...

  • Page 16

    Page 14 step one experience has shown that most complaints about heaters not coming on have nothing to do with the heater directly. Usually, something has reduced water flow through the heater system to shut down the heater. Any of the following could cause the heater to not come on. Check these ite...

  • Page 17

    Model lc (australia) pool and spa heater page 15 for all of these test. Disconnect the other blue wire from the in-line fuse and touch the second voltmeter lead to the blue wire terminal (see fig. 19). The meter should register 20 to 28 volts. If the voltage is less than 20v, the electrical circuit ...

  • Page 18

    Page 16 2. Touch the voltmeter leads to both terminals on one high limit switch, then the other. If the meter does not register voltage on one terminal, the high limit is bad, and must be replaced. D. Testing the pressure switch touch the meter lead to the black wire on the pressure switch (see fig....

  • Page 19

    Model lc (australia) pool and spa heater page 17 if the meter registers voltage, the temperature control is okay. If no voltage registers, shut off all electrical power to the heater and remove the tempera- ture control panel (see fig. 25) by removing the four screws attaching the control panel to t...

  • Page 20

    Page 18 in almost all cases where there has been a temperature control failure in the heaters, the ther- mistor probe has not been damaged. If the probe has been tested and found to be okay, there is no need to remove the draft hood or flue cap, and the top assem- bly. Disconnect the three different...

  • Page 21

    Model lc (australia) pool and spa heater page 19 electrical connections. Make sure all of the wire connections on the ignition control and the gas valve are tight. Make sure the wiring agrees with figure 5. If sparking occurs at the ignitor electrode, but there is no pilot ignition after two or thre...

  • Page 22

    Page 20 switch wire. If the heater comes back on, the problem is the pressure switch. Make a visual inspection of the electrical compo- nents. Check for loose wires. Disconnect the brown wire on the gas valve. If the heater goes off, the wiring could be faulty. Repair or replace the wiring. 4d. Gas ...

  • Page 23

    Model lc (australia) pool and spa heater page 21 5. Remove the two screws securing the antirotation bracket to the inner panel, and the three screws attaching the burner tray. Slide the burner tray out of the heater (see fig. 33). Note: due to sharp edges on the metal burner, wear protective gloves ...

  • Page 24

    Page 22 4g. Cleaning the heat exchanger caution black carbon soot buildup on a dirty heat exchanger can be ignited by a random spark or flame. To prevent this happening, dampen the soot deposits with a wet brush or fine water spray before servicing the heat exchanger. A light accumulation of soot or...

  • Page 25

    Model lc (australia) pool and spa heater page 23 to see if the valve is stuck open, shut off the filter pump and remove the flow control cap. Make a visual inspection of the disc. If it is not properly seated, disassemble the valve and overhaul it (see fig. 37). If parts are pitted due to corrosion ...

  • Page 26

    Page 24 15. Pull the wires out of the front compartment through the top, and coil them on the heat ex- changer. Disconnect the black wire from the pressure switch. 16. Remove the screw holding the white nylon cable clip behind the pressure switch on the back panel. Disconnect the pressure switch tub...

  • Page 27

    Model lc (australia) pool and spa heater page 25 figure 40. Terminal block 28. Replace the heat exchanger end baffles (model 125 & 175 only). 29. Replace the transition plate on the top of the flue collector. 30. Replace the gap closures and tighten the screws. 33. Check to make sure the wiring is n...

  • Page 28

    Page 26 57 55 58 58 57 56 43-49 95 42 73 31 30 32 28 22 76 79 38 36 60 39 34 35 71 68 70 69,72 82 86 81 87 85 29 88 89 90 66 62 66 65 91 20 21 40 67 64 63 80 26 19 24 17 23 16 18 25 53 97 96 51 52 1 2 3 4 5 6 8 7 9 11 15 12 10 14 13 50 59 61 75 78 79 77 64 83 84 92 94 98 99 41 100 101.

  • Page 29

    Model lc (australia) pool and spa heater page 27 pilot gas system - llc 1 pilot, main burner assembly, nat all r0331900 1 pilot, main burner assemby, prop all r0096500 2 pilot burner, nat all r0095800 2 pilot burner, prop all r0061600 3 pilot bracket shield all 10833900 4 ceramic insulator assembly ...

  • Page 30

    Page 28 model vent width stack dimensions (mm) hourly gas shipping no. (v) mm (w) mm consumption weight (kg) outdoor indoor (mj) a b a b nat prop 125 125 381 197 359 197 454 131 118 98 175 150 457 234 371 235 632 184 166 109 250 175 572 289 476 289 635 263 236 123 325 200 679 346 457 346 635 341 308...

  • Page 31

    Model lc (australia) pool and spa heater page 29 notes.

  • Page 32

    Page 30 waterpik technologies limited warranty your laars lite 2 pool/spa heater is backed by this double warranty to assure your complete satisfaction. 1. Controls, copper heat exchanger tubes, and combustion chamber panels are warranted against defects in materials and workmanship for two (2) year...

  • Page 33

    Addendum to document h0216300b addendum to installation and operation manual intermittent ignition heater (australia) pool and spa heater please refer to the following pages for corrections to document h0216300- (installation and operation manual, laars lite 2 model lc, australia) page 2, section 2b...

  • Page 34

    H0222900a page 5, section 2f, water piping, paragraph 4 please make the following change, the last sentence should read: install the device, without modification, according to the instructions included with the kit. To order a manual reset high limit switch kit, contact your local authorized laarss ...