DHA Mechanical

01/04/2025

The new Freon r-454b job in progress.

01/04/2025

People often wonder why new HVAC systems cost so much to install, fix, and repair.

Well a small look into a Carrier Infinity system. The state of the art system made in a 5 stage up to 19 seer2 model, or a variable speed up to 24 seer2

Super quiet, 10 year part and labor warranty.

Really is amazing how far they have come since I started in the field 28 years ago.

This is just the residential side of what we can do.

01/04/2025

Large tonnage compressor diagnostics, acid testing, meg ohm readings, and prep for replacements

01/04/2025

Carrier VRF Heat pump, before-1, during 2&3, after 4&5

01/04/2025

Compressed air for dental lab with poor maintenance. Fried starter, bad pump motor drawing 108 amps.

03/14/2024

Did you know on January 1, 2025 all manufacturers are changing to a new refrigerant and r-410a is being phased out? Prices will be increasing again up to another 20 percent by January 1st per manufacturers due to new refrigerant changes and new DOE/CA24 requirements. There is a good chance there will be equipment shortages again so if your contemplating a new system because yours is old and out dated or broken. Now is a good time to make that decision. Also due to new systems flammability level a dissipation sensor will now be required in case there is a refrigerant leak. Many manufacturers will be going to R-454b.

03/13/2024

Before and after. Quality and state of the art Carrier variable refrigerant flow technology able to modulate only using the capacity needed.

03/13/2024

Moving material to next mechanical room, doing clean up and walking off the space double checking all equipment work performed at is back on line and functional. Some of the small stuff to ensure extra customer satisfaction.

03/13/2024

Some controls work, running wire for some CT proof switches to modules for live operational proof at the building automation system.

02/04/2024

When you spend your Friday night at a trade show and dinner. Then all day Saturday going over upcoming new codes, technology changes, Freon changes, new equipment coming and the challenges faced with these new energy efficiency and EPA/ GWP requirements.

2025 marks the new Freon blend R-454b and Carrier has made some more great technology additions leading the competition as usual with the updated product line. R-410a will no longer be produced and its official phase out begins.

The government is pushing hard and offering tax benefits to energy certified Heat Pumps with smaller tax credits for new Air Conditioning systems.

We strive to be the best. To do so you must constantly be training, attending conferences, and being involved in the most advanced technology updates, and listening to what your customers want so you can help them make informed and educated decisions best for their home and or business.

01/26/2024

Duct demo for a tenant improvement project under way, reviewing plans and placing orders.

01/26/2024