Does Portland really need air conditioning?
Increasingly, yes. Portland summers have warmed measurably over the last two decades, and the region has seen multiple heat domes with sustained temperatures above 100°F. Many older Portland homes were built without AC and rely on cross-ventilation that no longer cuts it during heat advisories. Central air conditioning, or a heat pump configured to serve as the cooling system, is now standard in new construction and a common retrofit in older homes.
Should I install a traditional AC or a heat pump?
For most Portland homeowners, a heat pump is the better answer. A modern heat pump cools just as effectively as a traditional central AC in summer and provides efficient electric heating in winter, replacing or supplementing the furnace. The Energy Trust of Oregon rebate and federal IRA tax credit are also significantly larger for heat pumps than for AC-only installs. We'll model both options against your home's load and your gas rate so you see the math.
Why does Tru72 charge refrigerant by weight?
Refrigerant charge is the single biggest determinant of an AC system's efficiency and longevity. Charging "by feel" with the gauges looking about right can leave a system meaningfully over- or undercharged, hurting efficiency 10 to 20% and shortening compressor life. Tru72 charges by weight or by subcool against manufacturer specification, depending on the manufacturer's recommendation for the specific equipment, and documents the actual charge on the invoice.
What does Tru72 check on an AC service call?
Every Tru72 AC service call includes instrumented diagnostics. We measure refrigerant pressures (high-side, low-side, superheat, subcool), capacitor microfarad rating against manufacturer spec, voltage and amperage at the compressor and condenser fan, temperature differential across the evaporator coil, static pressure across the system, and visual inspection of the condenser coil, drain line, and electrical components. Numbers go on the invoice.
When does an AC need replacement rather than repair?
Common replacement triggers: a failed compressor on a system already past 10 years (compressor replacement cost approaches new-system cost), refrigerant leaks on R-22 systems (no longer sold; conversion cost is significant), age past 15 years with rising repair frequency, or a system that was wrong-sized originally and is short-cycling regardless of repairs. The diagnostic visit measures actual condition and we recommend repair or replacement based on what the numbers show.
How much does central air conditioning installation cost in Portland?
Installation cost varies with home size, existing ductwork condition, equipment tier (entry, mid, premium), and whether you're choosing a traditional AC or a heat pump configured for cooling. The free in-home assessment includes a Manual J load calculation and an itemized written quote so you see the actual number for your home. Heat pump installs benefit from significant Oregon and federal rebates that traditional AC-only installs do not.
What SEER rating should I choose?
SEER2 (the current efficiency rating) options range from 14.3 (federal minimum for the PNW) to 20+ for premium variable-speed equipment. The payback math depends on your home's cooling hours per year, your electric rate, and the difference in upfront cost. For Portland's heating-dominant climate, a midrange SEER2 with strong variable-speed performance often beats a higher-SEER fixed-speed unit on real-world bills. We'll model it before you choose.
How long does an AC installation take?
Most central AC replacements paired with an existing furnace are a one-day install (8 to 10 hours, two-person crew). New AC installs that require running new refrigerant lines, modifying the plenum, or upgrading the electrical service add time. Ductwork remediation is scoped at quote.