The NEC does not directly require hard-wired connections for faucets in commercial buildings in general. However, there are several scenarios where a hard-wired connection might be required, and these are often influenced by local codes, manufacturer's instructions, and the intended use of the faucet. Your electrician is likely basing their opinion on one or more of these factors.Here's a breakdown of why the electrician might be recommending an outlet, even when the drawings say hard-wire, and where you might find relevant NEC (and non-NEC) references

Why an Outlet Might Be Recommended (Even if Drawings Say Hard-Wire):
Ease of Maintenance/Replacement

Outlets allow for easier replacement of the faucet or its control box without having to disconnect and reconnect wiring. This is a common practical consideration in commercial settings.

Future Changes

An outlet provides more flexibility for future upgrades or changes to the faucet system.

Manufacturer's Instructions

The manufacturer's installation instructions for the specific faucet model are critical. Some faucets may require connection to a specific type of outlet for safety or operational reasons.

Local Amendments

Many jurisdictions adopt the NEC but also have local amendments or additions to the code. Your electrician might be aware of a local requirement that you are not.

Inspector's Preference

Inspectors often have their own interpretations of the code and may prefer outlets for accessibility and testing purposes.

Ground Fault Circuit Interrupter (GFCI) Protection

Faucets near sinks always require GFCI protection. While GFCI protection can be achieved through a breaker or a GFCI receptacle, the electrician might prefer a GFCI receptacle for ease of testing and troubleshooting.

Why Hard-Wiring Might Be Specified



Security/Tamper-Resistance

In certain applications (e.g., correctional facilities, public restrooms prone to vandalism), a hard-wired connection may be preferred to prevent tampering.

Aesthetic Considerations

Sometimes, hard-wiring allows for a cleaner, less cluttered appearance, as there is no visible outlet.

Specific Equipment Requirements

The drawings could be based on a specific faucet model that requires hard-wiring according to its listing and labeling instructions.

Relevant NEC Sections (Indirectly Related)

While the NEC doesn't explicitly address faucet wiring directly, here are some sections that might be relevant:

Article 110.3(B) - Installation and Use

This is extremely important. Equipment must be installed and used according to its listing and labeling instructions. If the faucet's instructions require a specific type of connection, that's what must be followed.

Article 210 - Branch Circuits

This article covers the requirements for branch circuits, including the number of outlets allowed and the type of wiring methods permitted. It doesn't mandate outlets for faucets but governs how circuits are wired.

Article 400 - Flexible Cords and Cables

If a cord and plug connection is used, this article applies, specifying the types of cords allowed and their proper use.

Article 406 - Receptacles, Cord Connectors, and Attachment Plugs (Caps)

Covers the requirements for receptacles, including GFCI requirements.

Article 422 - Appliances

Section 422.16(B) specifically addresses dishwashers and waste disposals, requiring a disconnecting means (often a receptacle) within sight or lockable. While not directly applicable to faucets, it illustrates the NEC's concern with disconnects for appliances connected to the water system.

Article 680 - Swimming Pools, Fountains, and Similar Installations

While unlikely, if the faucet is near a fountain or pool, this article could have relevant grounding and bonding requirements.

Important Considerations



Manufacturer's Instructions are King

The first thing you should do is obtain the installation instructions for the specific faucet model being used. These instructions may dictate whether a hard-wired connection or an outlet is required.

Consult with the Engineer/Designer

If the drawings specify hard-wiring and the electrician is recommending an outlet, the best course of action is to consult with the engineer or designer who created the drawings. They can explain the rationale behind the hard-wiring specification.

Check Local Codes and Amendments

Contact your local electrical inspector or building department to inquire about any local amendments or interpretations of the NEC that might be relevant.

Documentation

Document all discussions and decisions regarding the wiring method. This will help to avoid confusion and potential disputes later on.

Ground Fault Circuit Interrupter (GFCI)

Any faucet in a commercial building within proximity to water will undoubtedly need GFCI protection. Ensure the correct protection is being specified and installed.

In summary: There's no blanket NEC requirement for hard-wiring or outlets for commercial faucets. The choice depends on manufacturer's instructions, local codes, the designer's intent, and practical considerations like maintenance and tamper-resistance. You need to clarify why the drawings specify hard-wiring and why the electrician is recommending an outlet, then determine the best and safest approach that complies with all applicable codes and instructions. Consulting with the engineer, electrician, and local inspector is the best way to reach a definitive answer. Flag for review