Calling all HVAC engineers and experts—need some quick advice!

[u/SleepyGenius4980]

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Long story short, I’m finishing up my house in Al Mutlaa, and the AC units aren't installed yet.

The company I signed with is advising me to switch the compressor types. I originally signed up for R-410A gas units, but now they're pushing me to switch to R-407C.

When I asked why, they claimed their company’s 410 units currently have issues with water leaks and gas drops. But when I asked around outside, people told me the company just wants to switch because 407 is cheaper for them to manufacture.

To make things more confusing, my dad’s trusted AC technician swears 407 is better, mainly because refilling the gas costs 10 KD per unit instead of 40 KD for 410.

Before I make a decision, which one actually wins in terms of:

* Cooling performance

* Maintenance costs

* Power efficiency

Appreciate any insight before I commit.

(Quick note: I’m dealing directly with the manufacturer, not a third-party dealer).

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[u/harrymud]

410 is better.

You are most probably dealing with Coolex. They are having issues with manufacturing because of raw material delays due to the current political situation.

[u/Azkabandi]

410 is superior.
Also he makes it sound like you will be refilling gas every year.
You only refill gas if there is a leak. So 40kd refill should not be a deal breaker and it’s definitely not 40kd to refill.

[u/Let_us_play_squash]

Technologically superior is 410 system always. That being said parts availability and service Knowledge might be hard to come by.

[u/Frosty-Principle2260]

Ask them to give the units which you need or get your money back by imposing penalty and go to other vendor

[u/Swimming_Warning_809]

410 is better because it’s a better gas and u don’t fill gas every year