Comparrisson of Dimensional Numbers fails, but works if dimensionless

[rossko57]

You should make your Item types match the type of the channel that they are linked to, for best results.

Working with Number:Temperature Items in rules

openHAB provides Quantity Type features, which can seem baffling. On top of that, Temperature type Quantities have a few quirks all of their own. These notes intend to guide the rules author. I’ve shown work examples in DSL rules language, see below for other scripts examples. All have similar features, if different syntax. Knowing what can be done is half the battle. What is a Quantity Type? Simply, Item states and rule variables may contain Quantities - that just means a number AND a unit …

Be aware that a Number:Dimensionless is still a Quantity type, with units (%, dB, etc.), and is different from"just" a Number type.