GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

One versus Two Mini-Splits?

fmk95 | Posted in General Questions on

I have the energy usage data for an apartment with two mini-splits at the second-level. How can I figure out if both mini-splits are on or if just one is? I have amperage, voltage, and kWh.
Specs:
Heating System: Air-source heat pump 18 kBTUh, 9 HSPF, Mitsubishi Model #MSZ-A09NA
Cooling System: Air-source heat pump, 18 SEER, Mitsubishi Model #MSZ-A09NA

Ductless

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Replies

  1. vap0rtranz | | #1

    Assuming both minisplits are on the same electrical circuit?

    We have a multi-split w/ 3 head units on a 50amp circuit and I poked around on this awhile back ... there was some sensor system that I had finally found which could read the load at each head, probably via a CT clamped around each head's power line, and had a temperature probe at each head's outlet vent too to measure efficiency of heating/cooling, plus a box to collect all that data, of course. It was very expensive system to install so I never saved the info about it but maybe you can find it ... or something cheaper for us all :)

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |