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Model LLG & LLD Pool and Spa Heater
Page 1
operation instructions completely before proceeding
SECTION 1.
with the installation. Consult the Teledyne Laars
General Information
factory, or local factory representative, with any
questions regarding this equipment. Experience has
1A. Introduction shown that most operating problems are caused by
improper installation.
This manual provides installation and operation
The Laars Lite heater is design certified by
instructions for the Laars Lite, Model L
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Page 2 Gas Association and Canadian Gas Association) as SECTION 2. complying with the latest edition of the Standard for Installation Instructions Gas-Fired Pool Heaters, ANSI Z21.56, and in Canada with CAN1-4.7-M85. Certain sections of this manual are specific to 2A. General Information either United States or Canadian installations, and are Install the Laars Lite heaters in accordance with labeled as such. the procedures in this manual, local codes and ordi- nances, and in accordance with the
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Model LLG & LLD Pool and Spa Heater Page 3 ROOF JACK 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 2. Indoor Installation Venting (USA), or Outdoor Shelter (Canada). 2C-1. Installation Information Table 1. Air Openings to Outside Avoid placing the heater in locations where it can Required Net Free Open Area cause damage by water or condensate leakage. If this is fo
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Page 4 utility room. In the United States there must be a hollow masonry no less than 4 inches (102 millimeters minimum of 4 feet (1.22 m) horizontally or vertically [mm]) thick, covered with sheet metal at least 24 gauge between the heater and any door, glass opening, or thick and extending beyond the full width and depth of gravity inlet to a building (see Figure 3). the heater by at least 6 inches (76.2 mm) in all direc- tions. The masonry must be laid with ends unsealed, and joints matched t
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Model LLG & LLD Pool and Spa Heater Page 5 burners must be 18 inches (457 mm) above the garage floor. Refer to the latest edition of the National Fuel Manual Shutoff Gas Code for more information. In Canada, refer to the Valve latest edition of the Gas Installation Code, CAN/CGA B149. Caution Gas Supply Union Do not operate this heater outdoors at Inlet temperatures below 20 degrees Fahrenheit T-Fitting (°F) (-7 degrees Celsius [°C]). To Equipment 3" Min. Nipple Inlet 2E. Gas Supply and Piping
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Page 6 use 120 Volt, 60 Hz AC requires rewiring of the Caution heater. This should be done by a certified electrician Permanent damage to the gas valve will occur only, as with all wiring. To wire the heater for 120 Volt, 60 Hz AC, follow the alternate 120V wiring if the following procedures are not followed. method depicted in Figure 6. Additionally, the ignition control module must be rewired. The wire from the terminal marked IGN/240 must be removed from that 8. If the gas supply pressure is
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Model LLG & LLD Pool and Spa Heater Page 7 Figure 6. LLD Connection/Schematic Wiring Diagram.
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Page 8 be wired for remote operation. The CS-02 remote An interrupt (on/off) type remote can be control permits switching from one temperature connected by removing the jumper wire on the terminal controller to the other and turning the heater on and block located in the control compartment (see off from a remote location. The CS-04 includes the Figure 6) and connecting the two wires from the same features as the CS-02 plus a remote tempera- remote to the two terminals on the terminal block. Thi
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Model LLG & LLD Pool and Spa Heater Page 9 Figure 8. Field Wiring Connections (LLD). Figure 10. Piping installation. Figure 9. Time Clock Wiring. To connect a 3-wire remote (not supplied by Teledyne Laars), order a wire harness assembly (part No. E0120000) which connects to the flex-temp control panel. Installation instructions are included with the wire harness assembly. Consult with Teledyne Laars Service Department with questions about installing remotes other than Teledyne Laars. 2G. Water
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Page 10 To install plastic piping (see Figure 11): 2G-2. Reversible Water Connections Teledyne Laars ships the Laars Lite heater with 1. Remove CPVC nipples from plastic bag. the water connections on the right side. The Laars Lite heater can be installed with the water connections on 2. Screw CPVC nipples into metal flange until tight, either side. It could be necessary, or helpful, to switch using teflon tape on plastic threads. the connections to the left side to improve access for installatio
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Model LLG & LLD Pool and Spa Heater Page 11 Heat Exchanger End Baffles Heat Exchanger Combustion Chamber Wall Figure 16. Heat exchanger and end baffles. Figure 14. Temperature sensing bulb. Caution It may be necessary to have help lifting the heat exchanger out and replacing it. 15. Lift out the heat exchanger assembly and set it aside. Re-install heat exchanger 180 degrees from LEFT RIGHT it's original position (header left). VESTIBULE VESTIBULE COVER COVER 16. When replacing the heat exchang
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Page 12 23. Connect the white wire labeled PS to the pressure injector to prevent ozone and air from entering switch and the other white wire to its original the heater. location on the Fireman's switch. • When chemical feeders are used, plumb the feeder downstream of the heater and install an 24. Replace jacket/plugs grommets, and re-install the inline check valve between the heater and the drain plugs. Tighten securely. feeder (a minimum of 18" is required between the 25. Install the flue coll
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Model LLG & LLD Pool and Spa Heater Page 13 3. Turn rotary switch to ON. Heater should start. 4. Pry out the top rubber dirt plug. 5. 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 18). 6. Slowly turn the pressure switch adjustment screw counter-clockwise one-quarter turn. The heater should come back on. 7. Check the adjustment by turning the filter pump OFF. The heater should shut off immediately. If it does not, r
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Page 14 test (see Section 2G-8). 7. Open manual bypass valve until temp rise falls between the min. and max. range. 8. Once the temperature is within the correct range, safety wire handle of the manual bypass valve in place and tag valve to prevent change in the water low. SECTION 3. a) Model LLD Temperature Control Operating Instructions 3A. General Information With any new pool or spa installation, operate the filter pump with the heater off long enough to com- pletely clean the water. This wi
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Model LLG & LLD Pool and Spa Heater Page 15 3B-1. Model LLD (Direct Ignition) FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. A. This appliance does not have a pilot light. It is • If you cannot reach your gas supplier, call equipped with an ignition device which the fire department. automatically lights the heater. Do NOT try to C. Use only your hand to push
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Page 16 3B-2. Model LLG (Standing Pilot) FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be • If you cannot reach your gas supplier, call lighted by a push button sparker. When the fire department. lighting the pilot, follow these instructions C. Use only your hand to push in or turn the gas exactly. control knob. Neve
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Model LLG & LLD Pool and Spa Heater Page 17 Note: When using metal pipe as heat sink, join metal and PVC/CPVC, using metal male and PVC/CPVC female connection. Figure 20. Typical installation. If the heater is not going to be used for a long 3C. Setting the Temperature Control period of time, shut it down completely. Follow the The temperature control (see Figure 17) is instructions found on the inside of the heater. calibrated at the factory and covers a range from approximately 70 to 104°F (2
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Page 18 3D-3. Spring Start-up 2. The drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness To restart the heater in the Spring, have a profes- which could lead to unconsciousness, and subse- sional service technician reassemble the heater as quently result in drowning. follows: 1. Attach the copper tubing to the pressure switch 3. Pregnant women take note! Soaking in water and fill the loop with SAE 50, non-detergent oil above 102°F (38.5°C) can cause fetal dam
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Model LLG & LLD Pool and Spa Heater Page 19 drowsiness (e.g., tranquilizers, antihistamines, or discourage further adjustments. anticoagulants) should not use spas or hot tubs. 4. Set the filter time clock to start the pump no 7. Prolonged immersion in hot water can induce earlier than 6:00 AM during the pool heating hyperthermia. season. This is the time when nightly heat loss balances. Hyperthermia occurs when the internal body 5. If the pool is only going to be used on weekends, temperature r
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Page 20 5. Be sure all combustion air and ventilation open- SECTION 4. ings are not blocked. Parts List for Laars Lite Heater 3H-2. Professional Inspection In addition, annual inspections by a qualified 4A. General Information professional technician are recommended to keep the To purchase parts or obtain a comprehensive heater operating safely and efficiently through the years. maintenance manual for the Laars Lite heater, contact The following basic checks should be performed. your nearest Tel
