COMPUTHERM Q4Z

Zone controller

The COMPUTHERM Q4Z zone controller can control 1 to 4 heating zones, which are regulated by a wired switch-operated thermostat. The zones can operate independently from each other or, in case of need, all zones can operate at the same time. This way only those rooms are heated at a given time, whose heating is required. It receives switching
signals from the thermostats, controls the boiler and gives commands to open/close the heating zone valves (max. 4 zones) associated with the thermostats. Any switchoperated room thermostat can be connected to the zone controller, whose output relay has a loadability of 230 V AC, min. 2 A (0.5 A inductive load).

Important functions:

• Comfortable and energy-saving control of up to 4-zone heating systems
• Boiler control output delay function
• Control of zone valves and/or pumps

Technical data:

• Supply voltage: 230 V AC, 50 Hz
• Voltage of the zone outputs: 230 V AC, 50 Hz
• Loadability of the zone outputs: 2 A (0.5 A inductive load) (combined loadability of all zones together 8(2) A)
• Switchable voltage of the relay controlling the boiler: max. 30 V DC / 250 V AC
• Switchable current of the relay controlling the boiler: 8 A (2 A inductive load)
• Duration of activable Delay On function: 4 minutes
• Duration of activable Delay Off function: 6 minutes