DZCA honors our animals, staff, and guests by conducting ourselves at the highest level of integrity through our Core Actions -- Inspire Awe: Safety, Care, Connect, and by embracing our Core Values of: Welcoming, Curious, United, Courageous, and Transformative in all that we do. Operates, maintains, troubleshoots, and repairs steam and hot-water boilers, circulating pumps, vacuum pumps, boiler-feed pumps, and associated auxiliary equipment.