Bypassing a central heating controller.

[Peter Jason]

I am unable to understand the intricate
instructions on a Siemens "Chronogyr Rev15" con
troller.

Can I simply bypass this unit and use a common
household time clock instead.

I just need something to turn it on at 18.00hr &
off at 21.00hr.

I care nothing for "zoning", etc etc

Please help.

[tabb...@gmail.com]

A lot of CH systems do/did just that.
You should find the relevant contacts marked slightly explicatorily.


NT

[peterw...@gmail.com]

On Wednesday, July 18, 2018 at 6:19:30 PM UTC-4, Peter Jason wrote:

>
> Can I simply bypass this unit and use a common
> household time clock instead.

Given that most instructions for these devices are written in Sanskrit using roman characters, that is no surprise.

Yes, you may use a simple timer - but there are issues with that:

a) Freezing
b) Battery/power failure

I suggest that if you want to use a very simple timer, that you back it up with a basic two-wire thermostat set to the lowest temperature you can tolerated. Then have your timer bypass it for when you want thinks warmer.

Peter Wieck
Melrose Park, PA

[Peter Jason]

Thank you. Our needs are simple because we all
work business hrs. We want the thing to turn on
about 1-hr before everyone gets home and off when
everyones' in bed. The house is large and has
umpteen hot-water panel radiators that take time
to warm up.