Outdoor Knight Boiler Installation & Operation Manual

5 Field wiring

￿WARNING

NOTICE

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 boiler must be replaced, use only type 105°C wire or equivalent.

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

All wiring exterior to the appliance must be enclosed in approved conduit.

In accordance with Section 303 of the 2007 Energy Act, this boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the heating load decreases. This feature is equipped with an override, which is provided primarily to permit the use of an external energy management system that serves the same function. This override MUST NOT be used unless at least one of the following conditions is true:

1.An external energy management system is installed that reduces the boiler water temperature as the heating load decreases.

2.This boiler is not used for any space heating.

3.This boiler is part of a modular or multiple boiler system having a total input of 300,000 Btu/hr or greater.

4.This boiler is equipped with a tankless coil.

￿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, or local codes, or regulations.

Line voltage connections

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

2.Provide and install a fused disconnect or service switch (15 amp recommended) as required by the code (see FIG. 5-1).

3.The boiler pump is shipped loose. Wire the boiler pump as shown in FIG. 5-1.

4.When connecting a domestic hot water (DHW) pump, connect the wiring to the line voltage terminal strip as shown in FIG. 5-1.

5.To activate a system pump, wire as shown in FIG. 5-1. If the motor is larger than 1/8 hp or 1.8 amps, you must isolate with a relay.

Low voltage connections

1.Route all low voltage wires through the knockouts in the rear of the boiler, as shown in FIG. 5-2.

2.Connect low voltage wiring to low voltage connection board as shown in FIG. 5-3 on page 31 of this manual and the boiler wiring diagram.

Figure 5-2Routing Field Wiring

Figure 5-1Line Voltage Field Wiring Connections

LOW VOLTAGE

CONNECTION

BOARD

LOW VOLTAGE

WIRING

KNOCKOUTS

LINE VOLTAGE

 

 

IMG00386

 

WIRING KNOCKOUTS

 

28

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Lochinvar 151-286 Field wiring, Installation must comply with, Line voltage connections, Low voltage connections
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151-286 specifications

Lochinvar 151-286 is a high-efficiency water heater designed for both residential and commercial applications. This model stands out due to its advanced technology, user-friendly controls, and robust construction, making it a reliable choice for those seeking to optimize their hot water supply.

One of the key features of the Lochinvar 151-286 is its impressive heating capacity. With a maximum input of 286,000 BTU/hr, it can efficiently meet hot water demands for a variety of settings, including hotels, restaurants, and other commercial facilities. This substantial output ensures that even during peak usage hours, hot water availability is maximized, reducing wait times and enhancing customer satisfaction.

The water heater utilizes a state-of-the-art condensing technology that maximizes efficiency by capturing and utilizing flue gas heat. This process allows the Lochinvar 151-286 to achieve an impressive thermal efficiency rating of up to 98%. The benefit of such high efficiency translates to significant energy savings and reduced operational costs over time, making it an environmentally friendly option as well.

The Lochinvar 151-286 is equipped with a user-friendly control system featuring advanced microprocessor controls. These controls allow for precise temperature management and monitoring, enabling users to set optimal temperatures according to their specific needs. Additionally, the heater includes built-in diagnostics, allowing for easy troubleshooting and maintenance, which minimizes downtime and extends the life of the unit.

Another standout characteristic of the Lochinvar 151-286 is its durable construction. Built with high-quality materials, including a robust stainless steel heat exchanger, this model is designed to withstand the rigors of daily use. The unit also features a compact design, which facilitates easy installation in various locations, whether it be in a utility closet or alongside existing equipment.

Safety features are paramount in the Lochinvar 151-286, with multiple safeguards in place to protect against overheating and other potential issues. The unit is designed to operate reliably, ensuring peace of mind for users who depend on consistent hot water availability.

In summary, the Lochinvar 151-286 water heater combines high capacity, exceptional efficiency, and user-friendly technology, making it an excellent choice for those seeking reliable hot water solutions. Its advanced features deliver performance and durability that stand out in the competitive market of water heating systems.
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