Laarsen Associates LG, LD 2F. Electrical Wiring, 2E-2. Special Precautions for Propane Gas

Page 8

Page 6

WATERPIK TECHNOLOGIES INC.

 

 

Table 4. Gas Supply Pressure Requirements

Supply Pressure

Natural Gas

Propane Gas

Water Column

in.

(mm)

in.

(mm)

Minimum

5.5

(140)

10.0

(254)

Maximum

10.0

(254)

14.0

(356)

 

 

 

 

 

5.Install a sediment trap (drip leg) ahead of the gas controls (see Figure 5). Fit the trap with a threaded cap which can be removed for cleaning.

6.Install a manual gas shutoff valve for service and safety. Do not use a restrictive gas cock. DO NOT USE FLEXIBLE GAS PIPING.

7.Disconnect the heater and its individual shutoff valve from the gas supply system during pressure testing of the system at pressures higher than 1/2 pounds per square inch (psi) (3.45 kilopascals [kPa]). If the test pressure is equal to or less than 1/2 psi (3.45 kPa), close the manual shutoff valve on the heater during the piping pressure test.

Caution

Permanent damage to the gas valve will occur if the following procedures are not followed.

8.If the gas supply pressure is less than required, check for undersized pipe between the meter and the heater, a restrictive fitting, or an undersized gas meter. Gas supply pressures to the heater are listed in Table 4.

NOTE: The maximum inlet gas pressure must not exceed the specified value. The minimum value listed is for the purpose of input adjustment. Refer to Table 4.

9.Before operating the heater, test the complete gas supply system and all connections for leaks using a soap solution. Do not use an open flame.

Caution

Some leak test solutions (including soap and water) may cause corrosion or stress cracking.

Rinse the piping with water after testing.

2E-2. Special Precautions for Propane Gas

Liquefied petroleum (LP) gas is heavier than air. Therefore, do not install pool heaters using LP gas in pits or locations where gas might collect. Locate heaters a safe distance from LP gas storage and filling equipment. Consult local codes and fire protection authorities about specific installation restrictions.

2F. Electrical Wiring

Caution

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

Attention

Au moment de l'entretien des commandes, étiquetez tous les fils avant de les débrancher. Des erreurs de câblage peuvent entraîner un fonctionnement inadéquat et dangereux.

2F-1. General Information (LD Only)

Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the heater (see Figures 6 and 7 for typical examples) . The heater must include a definite means of grounding. There is a bonding lug on the right side of the heater, where a bond wire must be attached.

The heater comes factory-wired intended for use with 240 Volt, 60 Hz AC field electrical supply. To use 120 Volt, 60 Hz AC requires rewiring of the heater. This should be done by a certified electrician only, as with all wiring. To wire the heater for 120 Volt, 60 Hz AC, follow the alternate 120V wiring 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 terminal and placed on the terminal marked IGN/120.

Electrical wiring must be in accordance with the latest edition of the National Electric Code (NEC), ANSI/National Fire Protection Association (NFPA) 70, unless local code requirements indicate otherwise.

To wire the Laars Lite 2 model LD heater to a

120V or 240V /60 Hertz (Hz) electrical source:

1.Remove the screw located to the lower right side of the transformer and open the hinged cover of the wiring enclosure.

2.Connect the wires from the power source to the leads on the right side of the heater in the space behind the ignition control (see Figure 8). Be sure to follow the wiring diagram on page 7 to config- ure the transformer for the correct input voltage.

3.Attach the ground wire to the green ground screw located on the back panel of the wiring enclosure.

4.Close the cover of the wiring enclosure and replace the screw to hold it in place.

5.Connect a bonding wire (8 ga copper) to the bonding lug on the right side of the heater.

NOTE: No external junction box is required.

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Installation Laars Lite Pool and Spa Heater Outdoor Use OnlyTable of Contents Section 1A. Introduction1C. Warranty 2B. Field Assembly1B. Description 1D. Technical Assistance2C-1. Installation Information 2C. Site Location2C-2. Outdoor Installation 2C-3. Flooring Typical Installation2C-4. Indoor and Outdoor Shelter Installations United States2E-1. General Instructions 2D. Combustion and Ventilation Air Supply2E. Gas Supply and Piping 2F-1. General Information LD Only 2F. Electrical Wiring2E-2. Special Precautions for Propane Gas Model LD Wiring Diagram 2F-2. Auxiliary Time Clock Wiring Onnection Iagram2F-3. Remote Operation Model LD Only 2G-1. Flange Installation2G. Water Flow System Piping installation 2G-2. Reversible Water ConnectionsFlue collector hold-down brackets 2G-3. Check Valve Installation 2G-4. Chlorinators, Ozone Generators Sanitizing Chemicals2G-5. Pressure Relief Valve 2G-6. Adjusting the Pressure Switch2G-4a. Water Chemistry 2G-8. Temperature Rise 2G-7. Automatic Flow Control Valve2G-9. Adjusting the Manual Bypass Valve Typical installation3B. Lighting and Shutdown Procedures 3C. Setting the Temperature Control3A. General Information 3B-1. Model LD see 3B-2. Model LG see3B-1. Model LD Direct Ignition Do not try to light any appliance3B-2. Model LG Standing Pilot What to do if YOU Smell GAS3D. Seasonal Care 3D-1. Spring and Fall Operation3D-2. Winterizing 3D-3. Spring Start-up3G. Swimming Pool Energy Saving Tips 3F. Spa/Hot Tub Safety Rules3E. Water Chemistry 4B. Parts List 3H. Periodic Inspection4A. General Information 3H-1. Owner InspectionOrder Heat Exchanger See Next page for Detail Shown Model LG & LD Pool and Spa Heater Laars Lite Limited Warranty

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.
Top Page Image Contents