Thermistor for a Grant QRSC180SL - Air Source Heat Pumps (ASHPs)

RE: Thermistor for a Grant QRSC180SL

Grantmethestrength — Tue, 15 Apr 2025 07:02:43 +0000

@editor awesome thanks.

RE: Thermistor for a Grant QRSC180SL

Mars — Tue, 15 Apr 2025 06:32:30 +0000

@grantmethestrength, Neil’s on vacation, but he DM’d me saying: “The answer to the cylinder question is 120mm. So he’ll be left with 1.88m for a 2m sensor.”

RE: Thermistor for a Grant QRSC180SL

Grantmethestrength — Tue, 15 Apr 2025 06:30:28 +0000

Cheers @editor I managed (with the help of a mirror) to take a look inside. If this helps anyone else (as I genuinely didn’t know) the sensor pocket is just a tube through the insulation and you just push you temp probe in, mine is about 150mm in depth, I have a little probe with a digital display in there at the minute but the NTC 10K / B3950 thermistor to connect to the heat pumps is arriving today.

RE: Thermistor for a Grant QRSC180SL

Mars — Mon, 14 Apr 2025 21:49:46 +0000

@neil is this something you could advise or assist with?

RE: Thermistor for a Grant QRSC180SL

Grantmethestrength — Mon, 14 Apr 2025 12:25:29 +0000

The all mighty Claude AI reckons between 100-150mm but as we all know the AI’s and the 5G’s have been wrong before! 🤣

Thermistor for a Grant QRSC180SL

Grantmethestrength — Mon, 14 Apr 2025 11:46:08 +0000

Does anyone know how far into the sensor pocket the thermistor goes. I.E. If I get a two metre cable how much “tail” will I have left?