Hi

Welcome to the forum. I have a Gen 6 too and I have to say I havent seen a way of doing this yet. Here is another thread on it

https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/samsung-ashp-scheduling-help

I think it might be possible to do it via modbus or a device such as homely, but TBH I just switch mine off at night.

Mark

if you are using the samsung controller as the roomstat, and by setback you mean that  you want to alter the target room temperature at a specific time of day, you need to go into WEEKLY schedules.  In there you can set schedules that happen at specific times on specific days that change the target room temperature. 

Using this I run mine at 21 all day from 0400, 21.5 in the evening, 20.5 overnight 2300-0400 (which is effectively off, unless its very cold out).

this is really badly / not at all documented in the samsung manuals.

this won't change your water temperature , samsung doesn't do load compensation, so it won't "make more effort" to increase the roomT, it'll just stay on longer.

@bontwoody Thanks Ill check that out. 

Not sure how to turn it off automatically, with the controller as there isn't an option in the schedual for this.

@iancalderbank Thanks that's helpful Ill give that a try. I don't have a roomstat in the main part of my house, just the controler in a airing cupboard where the control panel is. I have got a Hive connected to the controller but have turned it off as I wanted to use the controller rather than Hive to control the heat pump.

Can I ask another question about the controller, what is the difference between Heat and Auto mode? There is very little documentation provided by Samsung. I have water law set up, so do I need to be in Auto mode for water Law to work or should I be in Heat mode? The Samsung user manual is really poor, it seems to be missing lots of very useful information.

@ecobaker if its in the airing cupboard it'll be no use, you need to move it to a living space to use it as the stat. Two wire low voltage so easy to do.

but if your system is in the mode that uses an external stat you will need configuration changes.

Starting point on this route is youtube, find Graham Hendra's heatpumps channel, watch all his samsung setup and install videos. and then watch the other samsung related ones that youtube suggests!

Posted by: @iancalderbank

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if you are using the samsung controller as the roomstat, and by setback you mean that  you want to alter the target room temperature at a specific time of day, you need to go into WEEKLY schedules.  In there you can set schedules that happen at specific times on specific days that change the target room temperature. 

Using this I run mine at 21 all day from 0400, 21.5 in the evening, 20.5 overnight 2300-0400 (which is effectively off, unless its very cold out).

this is really badly / not at all documented in the samsung manuals.

this won't change your water temperature , samsung doesn't do load compensation, so it won't "make more effort" to increase the roomT, it'll just stay on longer.

Can you please expand a bit on this as it doesn’t seem to align with what everyone else says. everyone else says you can't use weather compensation and do a setback at the same time on the samsung controller. 

do you not use weather compensation and just have the water outlet from the heat pump into the heating system run at 50degrees or similar? and then use the thermostat to detect 21 to switch the pump on/off? 

@simonh This method is the one I use now, you just set a different thermostat temperature for the overnight period.

I think what people mean about the weather compensation is that its not possible to alter the weather compensation curve for the setback period, so you just use the same curve as for the day but the heat pump will be switched off at a lower room temperature.

Posted by: @bontwoody

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@simonh This method is the one I use now, you just set a different thermostat temperature for the overnight period.

I think what people mean about the weather compensation is that its not possible to alter the weather compensation curve for the setback period, so you just use the same curve as for the day but the heat pump will be switched off at a lower room temperature.

Ah ok gotcha. So that's basically the same as what I'm doing with my nest thermostat ATM where is set it to 23 during the day and let weather compensation do it's thing (gets to about 21 usually) and then in the evening hours I set it to 18 degrees so it barely comes on. 

The only advantage I have I guess is I can automate it to go to low temp when everyone goes out and I can remotely turn it back up again when someone is due to return. 

Could you send me any photos of the screens for your setup? I don't seem to be able to set schedules for a set room temp. Is it the max and mins under weekly schedules? And do you know if this will have any advantage over doing what I am doing with the nest?

Cheers for the advice! Installers were fairly useless!

@simonh Im not sure how useful they are but Ive attached them anyway. They are set up the weekly schedules. Im sort of running a setback during the day and upping the temperature at night when we sit in the lounge where the thermostat/controller is.

At the moment Im not running a lower setback at night as it doesnt get cold enough but may add one when winter starts in earnest. Ive left 5 minutes between turning off on schedule and starting the next. Im not sure if thats necessary and its probably possible just to do that at the same time.

@bontwoody thanks for that - it looks like you don't have water law/weather compensation running though? is that right? it should say "water law" where yours says "indoor". 

my understanding is water law is probably the most important thing to reduce energy usage - setbacks/timers etc. are all nice to haves after that is setup and working. 

@simonh 

Hi Simon. Yes setting up weather compensation (water law) is vital to reducing bills. I am running using it so I’m not too sure of the significance of the “indoor” display??

I have very good monitoring so there is no doubt that WC is operating. 

Happy to share my FSV if that helps?