The frequency of the brick- work upkeep has been increased in light of the current project underway to replace loose bricks, which is expensive and possibly dangerous if not addressed. “We’d like to replace the bricks before they fall,” says Operations Director Mark Ellington.


Dialing in the Temperature


Like a lot of the systems managed by the club’s opera- tions department, heating and cooling are provided by multiple systems that have been installed over several generations. Electric fl oor units heat some areas, and radiator-style heating is used near many windows around the club. A gas fi replace warms members in the Reading Lounge, but for the most part the club’s boilers and chillers work in conjunction with nearly 40 air-handling units to provide the bulk of the club’s heating, ventilation and air conditioning needs.


Steam and hot water are pumped to heat exchangers where they warm air that is forced through ductwork by electric fans. Air conditioning uses a similar mechanism, except that cold water from chillers is used instead of steam and hot water from the boilers. Sounds simple, but the devil is in the details. Steam and chilled water must be pumped quite a distance. Steam pipes must be encased so water from condensation is captured.


Cold water from the chillers is pumped to chilled water coils where it cools intake air that is forced through ductwork by electric fans. In the process, the water heats up, and that warmer water is pumped to water towers on the roof. That water cascades down the towers, and airfl ow over the water cools the water. Cooler water means the chiller doesn’t work as hard when the closed-loop process starts over again.


continued on page 30 JULY 2010 | The Wınged M | 29


MAC Operations Department by the Numbers:


MAC consumes…. • Electricity


700,000 KwH/month (an average home uses 1,000 KwH/month)


• Natural gas


Last year the club’s maintenance department received 2,000 work order submissions, from broken combination locks to shattered backboards. In addition to that work, the department accomplishes routine maintenance, completes special projects and assists contractors working at MAC.


420,000 therms/year (an average home uses 1,000 therms/year)


• Water


2,000,000 gal/month (an average family of fi ve uses 9,000 gal/month)


Operations oversees… • 574,700 square feet


• $6.2 million average annual operating budget


• $4 million average annual capital budget


• 1.6 tons of laundry per year • 1.7 acres of carpeted fl oor


• 900 tons of trash/recycling/ compost per week


• 682,000 gallons of pool water • 81 toilets • 85 showers


• 60 to 100 gallons of paint used per month


• 37 drinking fountains


Sustainable and economical: Composting and recycling have redirected 200 tons of food and materials each week from the club’s dumpster, and reduced MAC’s garbage-hauling fees.


Statistics compiled from MAC Operations Department, Department of Energy’s Energy Information Administration and City of Portland Water Bureau


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