ECN Forum Forums General Topics of the Trade General Discussion Area Preferred wiring method for a walk-in.

As I read Article 440, not only are you required to have a switch at the evaporator, it has to be 'readily accessible' WHEN YOU'RE IN POSITION TO WORK on the unit. In other words, up on the ceiling near the unit.

If reliability is an issue, I might accept a locking, fused disconnect in place of the simple light switch.