Heating control unit Lago 0321 incl. AF, VF, KF/SPF Instructions D

• For controlling:
• 1 x single-stage heat generator
• 1 x direct heating circuit
• 1 x mixing heating circuit (3-point PI controller)
• 1 x hot water

The pump relay of the direct heating circuit can alternatively be used for the following functions:

• circulation pump
• Return flow increase
• Collector pump

• If no heat generator sensor is connected, the device can be used for a mixing valve extension. With a heat generator sensor connected and an address (BUSID) set, the heat generator can be used in a cascade system. Control is then managed by a system manager.
• Scope of delivery:
• 1 x Lago 0321
• 1 x outdoor sensor
• 1 x forward flow sensor
• 1 x boiler/storage sensor
• 1 x wall base

• Weather-compensated boiler temperature control
• STBTest
• Sensor selection (5kΩ NTC or 1kΩ PTC)
• Frost protection function
• cascadable
• Antilegionella function
• Mounting type: Wall mounting

Technical data:

• Operating voltage: 230 V, 50 Hz
• Power consumption: max. 5 VA
• Relay switching capacity: 250 V AC 2 (2) A
• Maximum current across terminal L1': 6.3 A
• Protection class (DIN EN 60529): IP 40
• Protection class (DIN EN 60730): II, double insulated
• Ambient temperature: 0°C...50°C