Installation & Service Manual

5Electrical connections

This appliance is wired for 120 VAC service. The appliance, when installed, must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements, with the latest edition of the National Electrical Code ANSI/NFPA No. 70. When the unit is installed in Canada, it must conform to the CSA C22.1, Canadian Electrical Code, Part 1 and/or local Electrical Codes.

1.All wiring between the appliance and field installed devices shall be made with type T wire [63° F(35° C) rise].

2.Line voltage wire exterior to the appliance must be enclosed in approved conduit or approved metal clad cable.

3.The pump must run continuously when the appliance is being fired.

4.To avoid serious damage, DO NOT energize the appliance until the system is full of water. Serious damage may result.

5.Provide the unit with proper overload protection.

6.Install a wall thermostat on the inside wall. DO NOT install the thermostat in an area affected by drafts, sunlight, light fixtures, hot or cold water pipes or near a fireplace. See “Room Thermostat or Remote Thermostat Connection to Terminal Strip” (this page), for proper wiring connection.

Boiler Operating Temperature Control

The operating temperature control is located in the control panel, behind the control panel front access door. The sensing element for the operator is placed in a bulbwell installed in the heat exchanger. Carefully observe the inlet water temperature on the initial boiler on cycles. The exact temperature set point is based on your system’s requirements. Turn the control set point dial to the desired operating water temperature. Observe the boiler discharge temperature after each set point adjustment to ensure proper operation.

Room Thermostat or Remote Thermostat Connection to Terminal Strip

A room thermostat or remote temperature control may be connected to the boiler. The room thermostat should be installed on an inside wall, away from the influences of drafts, hot or cold water pipes, lighting fixtures, televisions, sun rays or fireplaces. Follow the manufacturers instructions supplied with the thermostat for proper installation and adjustment. The boiler is equipped with a terminal strip on the left side of the control panel to allow easy connection (FIG. 5-1).

Remove the jumper between the R and W terminals on the terminal strip. Refer to the chart in this section (Table 5A) to determine maximum allowable length and wire gauge recommended to connect the switching contacts of the room thermostat to the R and W terminals on the terminal strip. Connection to the terminal strip will allow the room thermostat to make and break the 24VAC boiler control circuit turning the boiler on and off based on the room ambient temperature requirements. Set the boiler operating temperature control as described in this section.

B

A

Figure 5-1_Terminal Strip Connections

TABLE - 5A

TERMINAL STRIP WIRING

 

Wire Gauge

Maximum

 

 

Allowable Length

 

 

 

 

 

 

 

 

 

12 GA

100 ft.

 

 

 

 

 

 

14 GA

75 ft.

 

 

 

 

 

 

16 GA

50 ft.

 

 

 

 

 

 

18 GA

30 ft.

 

 

 

 

 

Auxiliary Device Connection to Terminal Strip

A terminal connection strip is provided for ease of connection for Power Venting Systems, see FIG. 5-1, inset A.

A field supplied powered venter or powered louver/damper may be connected to the Solution boiler via a terminal strip located on the left side of the unit, see FIG. 5-1, inset B.

A 24 VAC relay can be powered from this location when a call for heat has been established. A device proving switch can be interlocked back to the appliance to ensure its operation before the appliance is allowed to fire.

Reference the wiring diagram on page 50 of this manual.

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Lochinvar 000 Btu/hr, 45, 000 - 260 Electrical connections, Terminal Strip Wiring, Boiler Operating Temperature Control
Page 33 Page 35

000 - 260, 000 Btu/hr, 45 specifications

The Lochinvar 000 BTU/hr, 45,000 - 260 is a high-efficiency water heater designed for residential and commercial applications, showcasing advanced technologies that set it apart in the industry. With a powerful heating capacity of up to 260,000 BTU/hr, this unit is engineered to meet the varying demands of hot water for both large households and businesses.

One of the standout features of the Lochinvar 000 is its innovative design that maximizes energy efficiency. Utilizing condensing technology, this water heater captures and reuses exhaust gases that would otherwise be lost, thereby improving thermal efficiency significantly. The result is an impressive Energy Factor (EF) rating that not only promotes sustainability but also translates into lower energy bills for the end user.

The unit is equipped with a user-friendly digital control interface that simplifies operation and monitoring. This control system allows for precise temperature adjustments, ensuring that users can maintain their desired water temperatures effortlessly. Additionally, the advanced diagnostics provided by the control system help in troubleshooting potential issues before they develop into more significant problems, enhancing the reliability of the unit.

Durability is another hallmark of the Lochinvar 000. Constructed with high-quality materials, including a robust stainless-steel tank, this water heater is designed to withstand the rigors of daily use. The stainless-steel construction also helps to resist corrosion, which is a common issue in water heaters, thereby extending the lifespan of the unit.

Furthermore, Lochinvar has integrated safety features into the design of the 000 model, including an automatic shut-off system and advanced flame safeguard controls to prevent hazardous situations. This focus on safety ensures peace of mind for users, making it an ideal choice for family homes and workplaces alike.

In terms of installation, the Lochinvar 000 is relatively straightforward, with options for both indoor and outdoor setups. The compact design allows for flexible installation, accommodating various space requirements without compromising performance.

Overall, the Lochinvar 000 BTU/hr, 45,000 - 260 combines reliability, efficiency, and advanced technology, making it a superior choice for those seeking a powerful and dependable water heating solution. This water heater not only meets but exceeds modern expectations for performance and safety, catering to a wide range of hot water needs.
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