Address. 2503 NW Sundial Rd. Troutdale, OR 97060. Benefits Start on Day One. 1st Shift, 4- 10 hour days. Hiring Immediately. Oversee and manage the safe operation, daily monitoring and maintenance of large scale industrial anhydrous ammonia and/or R-22 refrigeration systems. Oversee the safe operation, daily monitoring and maintenance of industrial and office HVAC systems. You Will Contribute By. Oversee and manage Refrigeration, Electrical, and ...