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CALEFFI2851 Energy management unit

Zone module and collector

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CALEFFI

Fontaneto d'Agogna, Italy
Overview
Name of product/article
2851 Energy management unit
Type
Zone module and collector

Connection and energy management unit, heating version.
Male threaded connections.
Medium: water, glycol solutions.
Max. percentage of glycol: 30%.
Temperature range: 5–100°C.
Max. working pressure: 10 bar.
Max. heat exchanger net output: 35 kW.
Max. recommended primary circuit flow rate: 1,5 m3/h.
Max. recommended secondary circuit flow rate (system): 1,5 m3/h.
Anti-condensation set temperature (optional): 45°C, 55°C, 60°C, 70°C.
Setting accuracy: ±2°C.
By-pass complete closing temperature: Tmix = Tset+10°C = Tr.
Regulator
Supply: 230 V - 50/60 Hz.
Pumps
High-efficiency pump:
YONOS PARA 25/6 RKA, YONOS PARA 15/6 RKA.
Diverter valve with spring return
Max. working pressure: 10 bar.
Dp max.: 1 bar.
Diverter valve actuator with spring return
Synchronous motor.
Normally closed.
Supply: 230 V - 50 Hz.
Opening time: 70–75 s.
Closing time: 5–7 s.

Further info from manufacturer on 2851 Energy management unit

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