Description
Two-mode time relay is the timer designed for control of exhaust fan. When the light is turned on in the ventilated room, the relay is avtivated automatically.
Relay has two operational conditions:
- Exhaust fan operates 20 seconds after turning on the lighting in the room. After turning off the lighting, the timer is activated and fan is on from 3 to 30 minutes (it is installed with the help of regulator on the relay casing), then it is turned off.
- Exhaust fan is turned on 5 seconds after




