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Phoenix HVAC Blog

Thermostatic Expansion Valve (TXV)

Thermostatic Extension Valve | 22 Point Inspection | Clark Heating & Cooling 
This twisty part which is found in an A/C unit regulates the refrigerant flow for the indoor coil.  It is called a thermostatic expansion valve, or TXV, for short.  The TXV makes sure the A/C unit maintains maximum efficiency by allowing only a certain amount of refrigerant to flow into the evaporator. This control over the flow of refrigerant is necessary to make the evaporator as efficient as possible. It also prevents refrigerant from

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Run Capacitor: Not Quite The Flux Capacitor

run capacitorOk, so this round canister-looking part in the picture is not actually a flux capacitor, and it can’t help you time-travel, but it really is called a run capacitor.  The run capacitor plays a very important role in how well the air conditioner runs.

What a Run Capacitor Does

A run capacitor's function is to start compressors and motors and keep them running at a normal amp draw level.  These components will commonly fail in

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22 Point Inspection: We Check It All Out

22 Point Inspection | Routine Maintenance | Clark Heating & CoolingAt Clark Heating & Cooling, we always emphasize the importance of routine maintenance to keep your air conditioner in top shape.  Are you curious about what exactly goes into our routine maintenance checks?  We perform a detailed 22 point inspection, making sure everything is working properly.

Here are the items we check in our 22 point inspection

* Freon levels per manufacturer’s specifications, amp draws on the blower motor, outdoor fan motor, and compressor
*

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A wonderful company! My AC went out the day after our 118 degree day. On that Saturday it was 114 degrees. I looked online for companies with good...
Ruth Ann Hunsinger
Honest which is rare in this industry. Their prices are 30% less than some of the other rip offs, namely the companies that are always advertising...
John S.
CHC replaced my home AC system on 21Jun2024 (117F and muggy!). My old system was a high performing 19 yr old American Standard product where the...
Chris Bock
Honest and reliable HVAC company with some of the best technicians. We only trust them to work on our units and our clients units.
Sarah Pinger