The Inverter Compressor | HVAC Know It All

The Inverter Compressor – Feedback from the Duct Free Zone

“The inverter compressor is the best invention within the HVAC trade in my lifetime.”

I’ve repeatedly made that assertion on this column and in my TOSOT mini-split and APEX coaching occasions.

I stay dedicated to it and supply the next as additional proof to assist it.

There was a characteristic of the TOSOT multi-zone mini cut up that I had been apprehensive about utilizing myself in a residential utility after I was nonetheless contracting and one which I had issue describing objectively as a coach.

Options and Elements of the Inverter Mini Cut up

The characteristic is the flexibility to put in extra indoor capability than outside capability.

In my coaching occasions, I virtually have a tough time finishing that sentence as a result of, on the floor, it appears so unsuitable.

Nevertheless, like most options and elements of the inverter mini cut up, we have to scratch beneath the floor a bit bit to uncover the true benefit.

Wanting on the chart of accepted TOSOT Commonplace Multi-Zone combos, you’ll discover that 73 of the 123 accepted combos even have extra indoor capability than outside capability … how can that be?

Effectively, clearly, you’re all the time restricted to the capability of the outside unit.

Nonetheless, once you look intently on the capacities of the TOSOT Commonplace Multi-Zone outside models, you see that the 18K, 24K and 30K outside unit capability vary exceeds the capability acknowledged of their mannequin quantity for each cooling & heating.

As well as, additionally, you will discover that the 36K and 42K exceed the capability acknowledged of their mannequin quantity for heating.

So, after we take a look at the accepted mixture of 9+9+9 for the TM24H4-O, at first look, it seems now we have 3K extra indoor capability than the 24K outside unit.

Nevertheless, a better examination reveals that the TM24H4-O has a capability for cooling to 33K and heating to 28K … greater than sufficient to deal with the 27K of indoor models!

Now, please word that not the entire accepted combos work out this manner.

Many nonetheless signify extra indoor capability than outside, and in these situations, ought to all indoor models name concurrently, the system is proscribed to the general capability of the outside unit, which can outcome within the indoor models de-rating.

This characteristic is yet one more instance of the ability of the inverter compressor as a modulating compressor.

My instance of the 9+9+9 with the TM24H4-O exemplifies how as a substitute of going to the TM30H4-O outside unit, you’ll be able to hold your tools value down but nonetheless keep the mandatory capability for any climate occasion … finally serving to you get the job!

I used the Commonplace Multi-Zone outside unit in my instance, however the identical applies to the UltraHeat Multi-Zone as nicely …

Last Ideas

I like that even in any case my years with the TOSOT product, I nonetheless discover revelations like this to excite me and trigger me to rethink earlier issues.

The inverter compressor IS the best invention within the HVAC trade in my lifetime.

It continues to impress with its potential to make what was as soon as unthinkable now doable!