Type ESR 21-R

For solar plants with one consumer, for example calorifier, energy buffer storage tank or swimming pool
• One circuit universal controller with heat meter and antifreeze function, incl. wall mounting material
• 1 adjustable temperature difference function
• 1 relay exit for valve or pump
• 3 entrances for temperature sensors
• Adjustable minimum/maximum temperatures
• 1 collector sensor type PT1000, max. 240 °C, with silicone cable, length = 2 m, overvoltage protection
• 2 temperature sensors type PT1000, max. 90 °C, with cable, length = 2 m

Type UVR 61-3

For solar plants with up to 2 consumers, for example calorifier and energy buffer storage tank or calorifier and swimming pool
• Three circuit universal automatic controller with heat meter and antifreeze function, incl. wall mounting material
• 3 adjustable temperature difference functions
• 3 exits:
- 1 Triac for speed regulation of the circulation pump
- 2 auxiliary relay two-way contacts over auxiliary relay module (integrated).
• 6 entrances for temperature sensors
• Adjustable minimum/maximum temperatures
• 1 collector sensor type PT 1000,
max. 240 °C, with silicone cable, length = 2 m, overvoltage protection
• 4 temperature sensors type PT1000, max. 90 °C, cable length = 2 m

Type UVR 64

For solar plants with up to 3 consumers, for example calorifier and energy buffer storage tank or calorifier and swimming pool
• Four circuit universal automatic controller without heat meter and antifreeze function, incl. wall mounting material
• 4 adjustable temperature difference functions
• 4 exits:
- 2 Triac for speed regulation of the circulation pum
p- 2 auxiliary relay two-way contacts
• 6 entrances for temperature sensors
• 2 Adjustable minimum-temperatures and 4 maximum-temperatures
• Adjustable, temperature-dependent switching hystereses
• Day timer
• 1 collector sensor type PT 1000, max. 240 °C, with silicone cable, length = 2 m, overvoltage protection
• 5 temperature sensors type PT1000, max. 90 °C, cable length = 2 m.