Mitsubishi Heat Pump Installation in Santa Clara, CA
This heat pump installation in Santa Clara, CA replaced an old furnace with a new Mitsubishi ducted system that handles both heating and cooling from a single outdoor unit. The scope covered everything from removing the old equipment to rebuilding the electrical service that feeds it, so the homeowner ended up with a complete, code-compliant system rather than just a swapped-in unit.
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Removing the Old Furnace and Rebuilding the Electrical Service
We started by removing and disposing of the old furnace, then installing a gas cap to properly close off the line that used to feed it. On the electrical side, this job needed a new dedicated line and breaker, a new HP whip, and a new electrical disconnect box for the outdoor unit. We also installed a new communication electrical line between the indoor and outdoor units and set a new service outlet nearby for future maintenance. None of this shows once the job is finished, but it is what keeps a heat pump system running safely for years.
Installing the New Mitsubishi Heat Pump System
The new equipment is a 2.5-ton Mitsubishi system built around the SVZ-AP30NL air handler and SUZ-AA30NL heat pump. We poured a new concrete pad for the outdoor unit and set it on neoprene anti-vibration isolators to keep operation quiet. The air handler features fiberglass-free R4.2 insulation, a totally enclosed ECM motor, and selectable external static pressure settings, while the outdoor unit uses an inverter-driven compressor with Hot-Start Technology and Blue Fin coated coils to resist corrosion in our coastal air.
Beyond the equipment itself, the job included a new refrigerant line set with a new plastic line cover, redone and reconnected drain lines both indoors and from the outdoor unit, and a new condensation safety switch. We also installed a new intake grill, inspected the existing ductwork, and balanced airflow through the dampers already in place. Before charging the system, we ran a high-pressure leak test on the refrigerant lines and pulled a full vacuum to make sure everything was clean and dry. For controls, the homeowner got a Mitsubishi MHK2 thermostat along with the PAC-USWHS002-WF-2 wireless interface for app-based control of the heat pump installation.
Surge Protection and Smart Air Quality Add-Ons
To protect the new system’s electronics, we added a surge protective device rated Type 1, NEMA 4X and IP66, with dual diagnostic LEDs and an audible alarm for power spikes. The homeowner also opted into a smart air cleaning system built around an Amazon Smart Air Quality Monitor, a MERV 13 air purifier, and a smart thermostat working together. The monitor tracks particulate matter, VOCs, carbon monoxide, humidity, and temperature, and can trigger notifications or Alexa routines when air quality changes.
Warranty and Permit Timeline
All materials and labor for this job are covered under a 12-year equipment warranty and a 3-year labor warranty. As with any system of this size, we submitted the permit application to the city within four business days of the quote being approved, and work began within seven business days after the permit was issued. For a Santa Clara home that had been running an aging furnace and separate cooling equipment, ending up with one Mitsubishi system that heats and cools, plus cleaner air and better surge protection, was a solid upgrade.
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Reviews
Trusted by your neighbors
“5-star! my furnace cannot start and Michael K came here the very next day after I contacted NUR HVAC, he quickly diagnosed the problem is my inducer motor is down. 2 days later, Michael came back with the part and quickly installed it, made it work and checked everything! Now my furnace works very well again! I would recommend this company and Michael to everyone who has a furnace problem!”
“We could not be happier with Nur HVAC. They installed 2 HVAC systems in our home and have been absolutely fantastic ever since. Whatever an issue comes up they respond quickly and get it fixed without delays. They are reliable, professional, knowledgeable and always willing to help. It's such a relief to have someone we can trust to take care of our home's electrical and HVAC needs. We highly recommend them to anyone looking for a dependable professional who truly stands behind its work!”
“NUR installed a ductless multi-zone Mitsubishi mini-split system for us this spring after our 100-year-old lovely monster of a gas boiler died. It's so far out of code that no one will repair it, and we were tired of being cold! The new system is electric with a heat pump on the roof, and it includes AC for the six days a year when my usually foggy neighborhood needs it. We chose NUR because they offered competitive prices and clear communication, and they were able to place the indoor units exactly where we wanted them. The installation took just a couple of days and they were kind and efficient. If you are looking to get a job like this done, you should give them a call.”
Google Reviews
What our customers say on Google
“Loved my technician. Very honest. He replaced my gas heater and AC unit. Turned out great. Gas furnace wont be available after next year. So this should last another 25 years before I have to upgrade my panel to support a heat pump product. Dodged a bullet. I recommend this company. Susan Lacy Municipal Construction Inspector”
“Adlan C. was our technician and was very helpful, knowledgeable, and thorough. I would recommend NUR HVAC to others as a trustworthy service provider.”
“Islam did a fantastic job diagnosing and repairing my residential mini split unit. Very knowledgeable and would highly recommend.”
“My furnace cannot start and I contacted Nur hvac because their good reviews. They are very responsive and Michael K came the next day, he quickly diagnosed my furnace problem is the inducer motor is broken. 2days later, Michael came back with the part, he quickly installed it, made my furnace work again and checked everything. now my furnace works well! I would recommend nur hvac and Michael K to everyone who has a furnace problem! They are very professional and honest!”
“Alex and Dil were extremely professional. They did amazing job and our project manager Arthur was always provided updates”
“The service i got was excellent call late afternoon and got response quickly and great knowledge and very qualified had my furnace running in less than 1 hour,and reasonably priced.I will never use anyone else.HIGHLY Recommended!!!”
“Islan diagnosed system. Needs to order parts and return for repairs”
“Our technician Islam was very thorough and communicated everything that needed to be done very clearly. He was careful through our house and showed us photos of the problem before fixing anything. Would use Nur again!”
“I am extremely pleased with my new Mitsubishi heat pump installed by Nur HVAC. Everyone in California should use a heat pump due to the high cost of electricity, and Nur HVAC should be your installer. My installation was performed in two parts: the upstairs in Mar 2025, then downstairs in May 2026. I commend Nur HVAC for their patience during this protracted and difficult installation. After an initial assessment to determine my needs, the team arrived to plan the installation of the upstairs hardware. They asked many questions to figure it out. It only took 5 days for my on-site representatives Konstantin and Maxim to finish the work, which I felt was clean and neat; the electrical, refrigerant, and condensate lines blended into the existing arrangement seamlessly. By the end of day 5, I had hot and cold air at the touch of a button. About a year later, my remodeling had progressed enough for the installation of the downstairs units. Sadly, other contractors inadvertently cut the 220V supply line to the 2nd floor units. And while they meant well, these other contractors totally messed up the 220V supply line for the 1st floor units, running it to the 2nd floor breaker box instead! Maxim and Konstantin went above and beyond the call of duty, doing jobs that weren't theirs. They re-routed the 1st floor electrical line to the 1st floor breaker box, and got everything working. They were quick to suggest best placement of the indoor units. Additionally, they figured out a far better arrangement of the outdoor unit and refrigerant lines. The installation was more concealed and neat afterwards.”
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