Installation & Operation Manual

5 Electrical connections

Pool heater operating control module

The operating control for the appliance is the SMART SYSTEM control module. It is located on the inside of the control panel, behind the front access door. Access to adjust the temperature set point and other user adjustable points is made through the Operator Interface located on the front access door.

The exact temperature set point is based on the system’s requirements. Set the control set point(s) to the desired operating water temperature.

The maximum temperature set point that can be programmed into the control module from the Operator Interface on a pool heater is 105°F (40.5°C). The manual reset high limit control for a pool heater is adjustable up to a fixed maximum setting of 200°F (93°C).

TABLE - 5C

AMP DRAW DATA

Model

Controls

Blower

Pump

Approximate Total

FLA*

Amps @ 120 VAC

 

 

 

 

 

 

 

 

502

3.6

2.7

5.8

12.1

652

5.4

3.4

5.8

14.6

752

5.4

3.4

5.8

14.6

992

7.3

3.2

7.4

17.9

1262

7.3

3.2

7.4

17.9

1442

7.3

6.7

7.4

21.4

1802

7.3

6.7

8.8

22.8

2072

7.3

6.7

8.8

22.8

*With standard factory supplied pump.

￿CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause

improper and dangerous operation.

Installation must comply with:

1.National Electrical Code and any other national, state, provincial, local codes, or regulations.

2.In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.

Line voltage connections

1.Connect 120 VAC power wiring to the line voltage terminal strip in the junction box, as shown in FIG. 5-2.

2.Provide and install a fused disconnect or service switch (15 AMP recommended) as required by the code (see FIG. 5-2).

3.To activate the unit, wire as shown in FIG. 5-2. If the motor is larger than 1 HP, you must install a contactor.

4.When connecting power to units which are to be cascaded, each unit must be connected to the same ground connection.

UNIT

 

UNIT PUMP

SUPPLY

SUPPLY

L

N

G

L

N

G

D

 

 

D

 

 

I

 

 

I

 

 

S

 

 

S

 

 

C

 

 

C

 

 

O

 

 

O

 

 

N

 

 

N

 

 

N

 

 

N

 

 

E

 

 

E

 

 

C

 

 

C

 

 

T

 

 

T

 

 

 

 

 

UNIT

 

 

￿WARNING

NOTICE

ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.

Wiring must be N.E.C. Class 1.

If original wiring as supplied with the pool heater must be replaced, use only type 105°C wire or equivalent.

Pool heater must be electrically grounded as required by National Electrical Code ANSI/ NFPA 70 – latest edition.

 

 

PUMP

 

 

GROUND

 

 

SPLICE

 

 

CHASSIS

 

 

GROUND

L

N

 

 

120V

UNIT

 

PUMP

SUPPLY

1 HP MAX

 

 

Figure 5-2_Line Voltage Field Wiring Connections

42

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Lochinvar 502 Installation must comply with, Pool heater operating control module, Line voltage connections, AMP Draw Data
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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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