Installation & Operation Manual

4 Water connections

Install piping from the filter system to the pool heater as shown in the pool heater piping diagrams. See Figures 34 - 38. Minimum pipe diameter to and from the installed pool heater to the filter system piping on models 502 - 752 is 2" and on models 992 - 2072 Btu/hr the minimum is 2-1/2". The piping from the filter system to the pool heater may be PVC, CPVC or Copper Pipe. The piping from the pool heater back to the filter system will carry water with temperatures in excess of 110°F and must be CPVC or Copper Pipe. The temperature of the heated water from the pool heater will be substantially cooled as it is mixed back into the pool water from the filter system and returned to the pool. The mix of heated water and pool water from the filtration system should only be slightly warmer than the pool water before the connections from the pool heater.

 

2" NPT

 

WATER

2" NPT

INLET

WATER

 

OUTLET

 

INSPECTION

PLUGS

Figure 4-1_Water Connections - Models 502 - 752

2-1/2" NPT

WATER

INLET

2-1/2" NPT

WATER

OUTLET

INSPECTION

PLUGS

TABLE - 4A

Pipe Sizing Chart

502 - 752 Models

Common Pipe Size

Number of units

(Min.)

1

2"

2

3"

 

 

3

3 1/2"

 

 

4

4"

 

 

5

5"

 

 

6

5"

 

 

992 - 2072 Models

Common Pipe Size

Number of units

(Min.)

1

2 1/2"

 

 

2

4"

 

 

3

4"

 

 

4

5"

 

 

5

6"

 

 

6

6"

 

 

Circulating pump

1.This pool heater is factory supplied with a properly sized pump that circulates water between the pool heater and system.

2.The pump is sized to pool heater input and water hardness. See Water Chemistry on page 45.

3.Lubricate the pump to the manufacturer’s recommendations. Pump damage due to inadequate lubrication is non-warrantable. Use SAE 30 non-detergent oil or lubricant specified by the pump manufacturer.

4.Standard pool heaters are furnished with the following circulating pump mounted in the factory supplied pool loop.

502 - 752 Models

1/4 HP, 120 VAC, 5.8 Amp

992 - 1442 Models

1/2 HP, 120 VAC, 7.4 Amp

1802 - 2072 Models

3/4 HP, 120 VAC, 8.8 Amp

Figure 4-2_Water Connections - Models 992 - 2072

This pump is sized based on installation of a single pool heater

 

 

 

 

 

 

 

 

in close proximity with the system. If the number of fittings and

 

 

 

 

straight pipe exceeds the quantities shown in this section, a larger

 

 

 

 

pump will be required. As an alternative to changing the pump

 

 

 

 

in these circumstances, the piping can be changed to a sub-loop.

 

 

 

 

Check pump for correct pump rotation.

 

34

 

 

The standard pump selection is based on the following pipe and

 

 

 

fittings from the pool heater to the system:

 

 

Page 33 Page 35
Page 34
Image 34
Lochinvar operation manual Water connections, Circulating pump, 502 752 Models, 992 1442 Models, 1802 2072 Models
Page 33 Page 35

2072, 502 specifications

Lochinvar 2072,502 is an innovative and robust water-heating solution tailored for residential and commercial applications. This model represents a significant advancement in energy efficiency and performance, catering to the dynamic heating requirements of modern buildings.

One of the standout features of Lochinvar 2072,502 is its advanced thermal efficiency. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, the unit delivers exceptional heat output while minimizing energy consumption. This not only reduces utility bills for homeowners and businesses but also supports sustainability efforts by decreasing carbon footprints.

The Lochinvar 2072,502 incorporates cutting-edge technologies that set it apart in the market. It is equipped with advanced control systems that allow users to precisely manage heating outputs, ensuring optimal comfort while conserving energy. The user-friendly digital display provides real-time data, allowing for efficient monitoring and control.

Another significant characteristic of the Lochinvar 2072,502 is its robust stainless-steel construction. This feature enhances the unit's durability and longevity, ensuring reliable performance even in challenging conditions. The high-quality materials also contribute to maintaining consistent water temperatures, which is essential for both residential and commercial heating needs.

The Lochinvar 2072,502 operates silently, making it ideal for installations in areas where noise is a concern. Its compact design allows for flexible installation options, fitting seamlessly into various spaces, whether it’s a utility room, basement, or outdoor area.

Furthermore, the unit supports multiple venting options, accommodating different building architectures and layouts. This versatility makes it an ideal choice for new builds and retrofitting existing systems.

Maintenance is streamlined with the Lochinvar 2072,502, as it features a self-diagnostics system that simplifies troubleshooting. Regular service check-ups are made easier with accessible components, allowing technicians to perform maintenance tasks efficiently.

In summary, the Lochinvar 2072,502 stands out for its high efficiency, advanced technology, durability, and flexible installation options. It is an ideal choice for those seeking a reliable and technologically advanced water-heating solution that meets the challenges of contemporary heating demands while promoting energy savings and environmental responsibility.
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