2G-3. Check Valve Installation

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23.Connect the white wire labeled PS to the pressure switch and the other white wire to its original location on the Fireman's switch.

24.Replace jacket/plugs grommets, and re-install the drain plugs. Tighten securely.

25.Install the flue collector assembly. Be sure the bottom lips are inside the grooves on the front and rear tile covers and are not pinching any wires.

26.Reconnect yellow wires (Model LLG only) to redundant limit fuse on the flue collector.

27.Attach the flue collector holddown clamps to the clips located under the two center header bolts.

28.Replace the gap closures and tighten the screws securely.

29.Re-cover the header sensors with fiberglass insulation, and replace the insulation retainer.

30.Double-check to make sure the wiring is not pinched against sharp edges, or resting on the flue collector assembly.

31.Re-install rainshield assembly.

32.Replace the top assembly. Make sure the tabs are outside the heater jacket. Fasten the top assembly with the hex-head screws.

33.Install plastic tie wraps on wiring.

34.Install heater door.

35.Reinstall the vent cap or drafthood, if one was removed.

Install a check valve if there is any chance of back- siphoning when the pump stops. Do not install any other valve in the piping between the heater outlet and the pool, unless it is being used as a diverter valve.

2G-4. Chlorinators, Ozone Generators,

and Sanitizing Chemicals

The Teledyne Laars Lite heater is manufactured with materials that are not compatible with high concentrations of ozone, chlorine, bromine, or other sanitizing chemicals. Heater damage caused by exces- sive chemicals or improper ozonation is not covered by the Teledyne Laars 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 inline check valve between the heater and the feeder (a minimum of 18" is required between the heater and the check valve).

•Never deposit chemicals directly in the pool skimmer.

2G-5. Pressure Relief Valve

A pressure relief valve is not furnished with the Laars Lite heater, except in Canada, however, it is recommended and may be required by local codes.

To install a pressure relief valve, remove the 3/4 inch (19 mm) brass plug on the in/out header with the valve (see Figure 16). The setting of the valve should be at or below the lowest working pressure of filter system components.

2G-6. Adjusting the Pressure Switch

Caution

The pressure switch should be adjusted 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.

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) below or 6 feet (1.83 m) above the pool surface. Consult your local Teledyne Laars 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 properly. To adjust the pressure switch:

1.Turn the control panel rotary switch to OFF (see Figure 17).

2.Turn filter pump on. 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).

LLD, LLG specifications

Teledyne LLG, LLD is a prominent player in the field of advanced measurement and inspection systems. Based in the heart of the technology sector, Teledyne LLG combines cutting-edge engineering with innovative technologies to deliver high-performance solutions, particularly in the realms of optics and imaging.

One of the main features of Teledyne LLG is its commitment to precision. The company specializes in providing high-resolution sensors and imaging systems that cater to a variety of applications, including scientific research, industrial inspection, and aerospace. These sensors are designed to meet stringent performance standards, ensuring reliable data acquisition and analysis across diverse environments.

The technologies employed by Teledyne LLG are at the forefront of optical engineering. Their systems often utilize sophisticated algorithms and advanced signal processing techniques to enhance image quality and measurement accuracy. Innovations such as spectral imaging enable users to capture and analyze information beyond the visible spectrum, offering valuable insights for applications in fields like remote sensing and environmental monitoring.

Another characteristic that sets Teledyne LLG apart is its focus on integration and customization. Understanding that each application has unique requirements, the company offers tailored solutions that cater to specific needs. This flexibility allows clients from various sectors to leverage Teledyne LLG's technologies effectively, optimizing their operational workflows.

Teledyne LLG’s commitment to research and development ensures that its products continually evolve. The company invests significantly in exploring new materials, sensor designs, and imaging techniques. This proactive approach not only keeps them ahead of market trends but also ensures that their customers benefit from the latest technological advancements.

Moreover, Teledyne LLG places a strong emphasis on sustainability and efficiency. By developing systems that require less energy and produce less waste, the company not only addresses environmental concerns but also helps clients reduce operational costs.

In summary, Teledyne LLG, LLD stands out in the field of measurement and inspection through its precision, innovative technology, customized solutions, and commitment to sustainability. As industries continue to seek advanced solutions to meet modern challenges, Teledyne LLG remains dedicated to providing high-quality imaging and measurement systems that drive progress and innovation across multiple fields. With its strong focus on R&D and customer-centric solutions, Teledyne LLG is well-positioned to lead the future of optical technology and sensor development.

Teledyne LLD, LLG dimensions 2G-3. Check Valve Installation, 2G-5. Pressure Relief Valve

Models: LLD LLG