Can the ONE handle 220V at 30A?

General
1

I have an implied question from a person on Mastodon:

Can the HestiaPi ONE handle an HVAC that uses 220VAC at 30A? They specifically mention that it uses “line voltage 220V thermostats”.

Source: James Just James: "@hestiahacker I'm in Canada. At least in Montreal…" - Mastodon

They say this is what HVAC systems in Canada frequently are. I know the power supply can handle it with the 240V (EU) part, but the solid state relays appear to be rated for 2A (source: https://www.mouser.com/datasheet/2/307/en_g3mc-348917.pdf#)

Can anyone with experience with 240V thermostat systems confirm whether they typically have > 1A going through the thermostat? I’m not familiar with those systems.

2

Surely 220VAC at 30A is not handled by any HestiaPi and possibly by any home thermostat. Usually home thermostats control signals that control bigger relays that take all the load. Even the wires coming out of the wall are thin and cannot take that load.
Sounds like he is not experienced enough to “modify” these so I would suggest to get professional help. I know this will not be what he will want to hear.

3

The Canada versions definitely get the full line voltage and current. I think they use triacs or thyristors.

Source: James Just James: "@hestiahacker Thanks! The Canada versions definit…" - Mastodon

I searched around and sure enough, 30A line voltage thermostats seem to exist. I saw a list of them here and a Honeywell for sale on Amazon can handle 14.6A @ 240V and says it uses TRIAC switching. Granted, that’s not 30A, but it’s a lot more than 2A!

I’ll pass along the word that the HestiaPi won’t work for them out of the box. Thanks for the extremely speedy reply. :slightly_smiling_face:

4

Guilty as charged… Let me rephrase it to include what I had at the back of my head before.
30A @ 240V AC is a lot to start a fire. The specs of the HestiaPis are numbers we are comfortable to work with.
I cannot tell the wiring requirements, space limitations and local regulations of the 30A case in Canada, but if they can incorporate the correct relay externally, then HestiaPi could be used just as fine.