Uses 24V AC solenoid valves via decoders.
Many users make the mistake of throwing away the manual after a cursory glance. Here is why you should keep the accessible at all times: heron ti-40 manual
In an age where we “skip setup” and throw away quick-start guides without a second glance, the manual for the Heron TI-40 temperature indicator feels like a relic from another universe. Not because it’s outdated, but because it expects something from you that most modern products do not: Uses 24V AC solenoid valves via decoders
Heron does not produce official videos, but several third-party technicians have uploaded calibration and cleaning guides on YouTube. However, these often skip safety warnings. Cross-reference with your written Heron TI-40 manual . heron ti-40 manual