Model LG & LD Pool and Spa Heater

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Figure 8. Field Wiring Connections (LD).

Figure 9. Time Clock Wiring.

To install a time clock auxiliary switch into the heater wires (see Figure 9):

1.Remove heater door.

2.Remove the factory installed wire between terminals 1 and 2 on the terminal strip (see Figure 9).

3.Connect the wires from the time clock auxiliary switch to the two terminals. Use American Wire Gage (AWG) No. 14 gauge stranded copper wire with a temperature rating of 221°F (105°C) or greater.

The length of the wire between the heater and the time clock should not exceed 10-15 feet (4.57 m). The contact points of the time clock switch should be silver, or a low resistance alloy.

2F-3. Remote Operation

(Model LD Only)

The Laars Lite 2 pool/spa heater controls can be wired for remote operation. The CS-02 remote control permits switching from one temperature controller to the other and turning the heater on and off from a remote location. The CS-04 includes the same features as the CS-02 plus a remote tempera- ture controller. Contact Waterpik Laars for further information. Reference part numbers CS-02 and CS-04.

An interrupt (on/off) type remote can be connected by removing the jumper wire on the terminal block located in the control compartment (see Figure 6) and connecting the two wires from the remote to the two terminals on the terminal block. This type of remote control will turn the heater on or off, but will not switch between the two temperature controllers on the temperature control panel or allow for temperature adjustments.

To connect a 3-wire remote (not supplied by Waterpik Laars) to a Laars Lite 2 LD heater, order a wire harness assembly (part No. E0120000) which connects to the temperature control panel. Installation instructions are included with the wire harness assem- bly.

Consult with Waterpik Laars Service Department with questions about installing remotes other than Waterpik Laars.

2G. Water Flow System

2G-1. Flange Installation

The heater has 2" NPT universal header cou- plings. You can connect threaded 2" NPT iron pipe, unthreaded 1-1/2" iron pipe, 1-1/2" or 2" copper pipe without an adapter (see Figure 10).

Plastic piping (PVC Schedule 40) can be con- nected to the heater if local codes allow it, by using the CPVC nipples included with your heater.

To install plastic piping (see Figure 11):

1.Remove CPVC nipples from plastic bag.

2.Screw CPVC nipples into metal flange until tight, using teflon tape on plastic threads.

3.Attach PVC plumbing to CPVC pipes using PVC to CPVC cement only.

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Laarsen Associates LG, LD 2G. Water Flow System, 2F-3. Remote Operation Model LD Only, 2G-1. Flange Installation
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LG, LD specifications

Laarsen Associates is a reputable engineering and consulting firm known for its innovative solutions in the field of energy and environmental management. Among its notable offerings are the LG and LD series of products, designed to optimize energy efficiency and reduce environmental impact in various applications.

The LG series focuses on providing high-performance tools for efficient energy management in commercial settings. These tools are engineered to integrate seamlessly into existing infrastructures, allowing businesses to monitor, control, and optimize their energy consumption effectively. One of the main features of the LG series is its user-friendly interface, which provides real-time data on energy usage, enabling users to make informed decisions quickly. Furthermore, the enhanced connectivity options facilitate remote access, allowing users to manage their systems from anywhere, significantly improving flexibility and response times.

On the other hand, the LD series is tailored for industrial applications, emphasizing durability and robust performance. The LD products are designed to withstand the harshest environments while maintaining consistent efficiency. Their advanced monitoring systems provide detailed insights into energy consumption patterns, allowing for predictive maintenance and reduced operational costs. Key characteristics of the LD series include high reliability, modular design, and adaptive technologies that can be customized to suit specific industrial requirements.

Both series employ cutting-edge technologies to achieve optimal performance. Smart sensors collect real-time data, which is processed using advanced algorithms to deliver actionable insights. These insights can lead to optimized processes, reduced energy wastage, and enhanced sustainability measures. Moreover, the integration of IoT capabilities allows for smarter energy systems that adapt in real time to changing conditions.

Sustainability is at the core of Laarsen Associates’ offerings. Both the LG and LD series are designed with a commitment to reducing carbon footprints and complying with global standards for environmental protection. Their features not only promote energy efficiency but also support clients in achieving their sustainability goals.

In conclusion, Laarsen Associates’ LG and LD series represent the forefront of energy management and environmental solutions. With their combination of user-centric design, advanced technology, and commitment to sustainability, these products pave the way for businesses and industries to navigate modern energy challenges effectively.
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