Prevent Intelligent Room Controller Rapidly Cycling

[Aaron]

I suspect this has been asked before but I could not find reference so apologies in advance.

Is there anyway to add a tolerance to the Intelligent Room Controller to prevent rapid cycling of a digital output to either a cooling or heating device please?

I've read the documentation without finding detail expect for the suggestion to keep things very simple and the IRC will learn.

We have a portable aircon set-up and controlled in a rudimentary on/off manner from a Smart Socket Air. The IRC uses the temperature from this Smart Socket Air. When the temperature reaches target temperature, the aircon switches off but this rapidly causes the temperature to rise and for the aircon to be reactivated. Would using a temperature sensor in a less 'volatile' area within the room be the best solution?

thanks

Aaron

[Duncan]

you can do this 2 ways

1) modify the temperature sensor input using for instance a moving average

2) better way - use the analog output of the IRC and connect it to the AI input of a separate PWM block and connect your digital on/off to the output of the pwm block - on this block you can set the time frame to whatever you want using the P input in seconds

the irc uses a 5 minute time frame for pwm, but you can then change this so for example for UFH then i would set the timeframe to 15 to 20 minutes using a value of P of 900 to 1200 seconds

add a virtual input to P to enable you to experiment, then change that to a fixed value once you got it working well

[Dan Orange]

We always feed irc into a intelligent temperature controller when connecting to a heat source eg a boiler. This has parameters to stop the rapid pwm output.

[Aaron]

Thanks you both for your help. I also use the intelligent temp controller for the boiler but just needed something simple and temporary for the aircon units.

I've implemented a pwm block and I think things would be nearly perfect if the wife left temp settings alone!

Cheers