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Hills Esteem II issues

(37 posts) (16 voices)

Started 9 years ago by JohnMN
Latest reply from Laurence Stonard

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amun-ra
Member

Withought seeing your setup its hard but its winter and you have had some cold weather
you may be using a bit more than usual temp of mains water is colder going into your tank
and sun is at its lowest energy at this time so cannot replace the hot water used turn on your booster which should be on anyway ??

Posted Thursday 31 Jul 2014 @ 12:04:56 pm from IP #
Solgen
Member

We have had a Hills system for 6 years supplying a 2 person house, we live in Sydney. We only need to boost in June and July with some boosting in May. Without boosting water temperatures are unacceptable.

Posted Friday 1 Aug 2014 @ 7:14:26 am from IP #
Ben1
Member

I have a question related somewhat to this thread. Evacuated tube collectors have two sensor wells: one on the left hand side, one on the right. The manuals say to insert the sensor into the sensor well on the outlet side (relative to the flow of water). Should the readings on the outlet be higher than the inlet? I am not seeing that.

Posted Sunday 25 Jan 2015 @ 10:29:14 am from IP #
amun-ra
Member

temps will be the same while system topped out but flow side will be slightly cooler when pump is going

Posted Sunday 25 Jan 2015 @ 10:48:45 pm from IP #
munter
Member

Temps should be lower on the inlet side as that is where the cool water enters. My builder put the probe in that side and it caused poor system performance. Relocating the probe made a big difference.

Posted Tuesday 27 Jan 2015 @ 11:54:38 pm from IP #
Ben1
Member

Thanks, Munter!

Posted Thursday 29 Jan 2015 @ 2:51:33 am from IP #
Laurence Stonard
Member

I have a 2011 Hills Esteem II, I looked on line and found your list of posts for Hills Esteem II issues.

I would like to add my info but as I am not a member I cannot.

First I noticed the hot water was leaking from the end of the Solar tubes, at the Automatic Air Vent, I found it was super-hot, and the water tank cold.

I found this was due to the Tank sensor getting wet and not working, with no signal, it was hot, this allowed the tank to overheat.

I replaced the sensor Note sure which one, so I bought the 10 K which seemed to work

* Roof sensor 5K0 NTC Thermistor (5000Ω@25°C) Max temp 300°C"
* 10 K0 Roof sensor Thermistor (10000Ω@25°C) Max temp 300°C"

Rinnai http://www.rinnai.com.au/media/4323077/solar_evt_oim_v1_200713.pdf

http://www.enviro-friendly.com/evacuated-tube-owners-manual-august2010.pdf

this may help someone who is having trouble.

Posted Friday 18 Sep 2015 @ 5:34:14 am from IP #

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