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Cooling season

Summer

June to September, and getting longer. A lot of the cooling equipment in this city was fitted for a milder decade than the one it is now working in.

In houses

What summer looks like in a Spokane house

  • It is not coolingCapacitor, contactor, a tripped safety or a condenser coil packed with cottonwood. Common parts are on the van.
  • Upstairs never catches upReturn sizing and attic duct losses far more often than capacity. Measured at the register before anybody talks about equipment.
  • Retrofitting cooling to an old housePlenty of houses here were built with heating only. Ductless heads, adding a coil to existing ducts, or a full ducted system — each is right for a different house.
  • Smoke weeksFiltration is limited by what your system can carry. We measure static pressure before recommending a filter, because a denser filter your system cannot carry filters less air overall.
  • The bill jumpedA dirty coil, a stuck damper, or duct losses in an attic that is far hotter than the air being pushed through it.
  • It runs all afternoonOn a genuinely hot day that can be correct. It is a fault when the house still loses ground, and that is measurable.
An outdoor condensing unit beside a house with pines behind under a hazy summer sky
In buildings

What summer looks like on a site

  • Rooftop units losing capacity quietlyCoils loaded with seed and dust. They do not fail; they just stop keeping up, and nobody can say when it started.
  • EconomisersFree cooling for a large part of the year in this climate, and the first thing to fail without telling anybody.
  • West elevationsThe complaints come from the same side of the building every afternoon, and the answer is rarely more capacity.
  • Smoke-season readinessKnowing which units can go to minimum outdoor air, who changes the setting and who puts it back. Worth agreeing in writing before it is needed.
  • Server and comms roomsThe one space that does not care what the season is, and the one most likely to be cooled by something nobody has serviced.
Timing

April, not July

A cooling check booked in April is a service visit: the coil gets cleaned before the season loads it, the charge behaviour is measured on a mild day, and anything found is fixed calmly. The same check in July is an emergency, and so is everybody else's.

We keep the summer schedule deliberately light so that buildings and houses we hold records for get seen quickly when something does fail. That only works if the planned work happened in spring.