Phoenix, Arizona
A high-rise rooftop pool and spa in Phoenix — 480V transformer, stainless NEMA 4X distribution, pool equipment circuits, Article 680 bonding and custom low-voltage LED lighting. Performed as the electrical subcontractor to Berlin Precision Construction Inc. (AZ ROC 316238)
The project
Renovating a pool on the roof of an occupied high-rise is not the same job as a backyard pool. The gear has to be craned or carried up. The equipment room is tight. Everything you install lives in full Phoenix sun, gets hit by wind-driven rain, and breathes chlorine around the clock. And because it's a pool, the bonding and GFCI work has to be exactly right — there is no margin there.
B and D Electric handled the electrical scope on this renovation as a subcontractor to Berlin Precision Construction Inc. (AZ ROC 316238) That covered the 480V transformer and its terminations, a new distribution panel in a stainless NEMA 4X enclosure, dedicated circuits for the pumps, heaters, chlorine generation and controls, the equipotential bonding grid per NEC Article 680, and the low-voltage LED lighting in the deck and pool niches — including fabricating the light housings.
It passed inspection and the deck is open to residents. If you're a general contractor or a property manager who needs an electrical sub that can hold its own on a job like this, get in touch.
Project facts
Scope of work
We installed and terminated the dry-type transformer feeding the pool equipment, including the primary and secondary connections, grounding electrode and bonding jumper, and labeling.
A rooftop pool deck is one of the harshest environments in Phoenix — direct sun, wind-driven rain and airborne pool chemicals. The distribution panel went into a stainless NEMA 4X enclosure with a filled-out circuit directory so the next person knows exactly what they're looking at.
Dedicated circuits for the circulation pumps, heaters, chlorine generation system, filtration and the control package, sized and protected for continuous duty.
The equipotential bonding grid, the metal parts of the equipment skid, the handrails and the niches were bonded per NEC Article 680, with GFCI protection where the code requires it. On a pool this is the part nobody sees and the part that matters most.
Deck and niche lighting on a low-voltage system, including fabricating the light housings to match the architecture and running the feeds, strain relief and drivers.
This was an occupied high-rise on a live construction deck. Our work was sequenced around the pool contractor, the tile crew and the GC's schedule, and every rooftop penetration was coordinated.
Photos
All photos are our own work on this project.
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