Yes, 210.70(C) does likely apply to an air handler located above a bathroom shower or laundry room, even with no attic or walkable space, if the air handler contains equipment requiring servicing. Here's a breakdown of why: 210.70(C): "Equipment Requiring Servicing." This section is specifically designed to ensure that equipment needing maintenance or repair has adequate lighting. The lack of a walkable attic or dedicated space doesn't negate the need for lighting if servicing is required. Air Handlers Require Servicing

Air handlers inherently contain components that require periodic servicing, such as: Filters (regular replacement) Blower motor (inspection, lubrication, or replacement) Electrical connections (inspection and tightening) Coils (cleaning) Drain pans (cleaning and clearing obstructions) Control boards/components (troubleshooting and replacement)

Practical Application

Imagine trying to change an air filter in a dark, cramped space above a shower. Proper lighting is essential for safety and proper maintenance.

No Exception Based on Space

The NEC doesn't offer an exception to 210.70(C) simply because the equipment is located in a difficult-to-access space. The need for servicing triggers the requirement, regardless of the spatial constraints.

In conclusion, if the air handler contains components that require periodic servicing, then 210.70(C) mandates a lighting outlet controlled by a readily accessible switch. The absence of an attic or walkable space is irrelevant.Important Considerations



Readily Accessible Switch

The switch controlling the lighting outlet must be readily accessible, typically at the entry to the bathroom or laundry area.

Local Codes

Always check with your local electrical inspector or building department. They may have additional interpretations or requirements.

Type of Lighting

The lighting must provide adequate illumination for servicing the equipment safely and effectively. A simple lampholder with a sufficient wattage bulb is often sufficient.

Safety: Working in these tight spaces can be hazardous. Always de-energize the circuit before working on electrical equipment, and take appropriate safety precautions.I hope this clarifies the application of 210.70(C) in this scenario. Flag for review