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281 Anti-condensation unit

Zone module and collector

Manufacturer CALEFFI

Anti-condensation recirculation and distribution unit, with thermostatic control of the return temperature to solid fuel generators. Brass body.
With insulation.
Female union connections.
Medium: water, glycol solutions.
Max. percentage of glycol: 50%.
Temperature range: 5–100°C.
Max. working pressure: 10 bar.
Max. recommended flow rate: 2 m3/h.
Temperature gauge scale: 0–120°C.
Anti-condensation valve
Temperature range: 5–100°C.
Settings: 45°C, 55°C, 60°C, 70°C.
Setting accuracy: ±2°C.
By-pass complete closing temperature: Tmix = Tset +10°C = Tr.

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Brass body.
Male union connections.
Max. percentage of glycol: 50%
Max. working pressure: 10 bar
Temperature range: 5–100°C
Setting temperature: 45°C, 55°C, 60°C, 70°C
Setting accuracy: ±2°C
By-pass complete closing temperature: Tmin + 10°C = Tr.
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Working pressure: 0,3 bar ≤ P ≤ 10 bar.
Temperature range: 5–100°C.
Setting temperature: 98°C and 99°C.
Discharge rating:
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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: Ī2°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 valves 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.
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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.
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Synchronous motor.
Normally closed.
Supply: 230 V - 50 Hz.
Opening time: 70–75 s.
Closing time: 5–7 s.
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Female threaded connections.
Primary side connections: 1” F.
Secondary side system connections: 1” F.
Secondary side boiler connections: 3/4” F.
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: 1,7 m3/h.
Max. recommended secondary circuit flow rate: 1,7 m3/h.
Anti-condensation set temperature (Tset): 55°C.
Setting accuracy: ±2°C.
By-pass complete closing temperature: Tmix = Tset+10°C = Tr.
Regulator
Supply: 230 V - 50/60 Hz.
Pumps
Primary circuit: 3 speed pump RS 4-3 or  high-efficiency YONOS PARA 25/6 RKC.
Secondary circuit: high-efficiency variable speed pump YONOS PARA 15/6 RKA.

CALEFFI Catalogues

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Zone module and collector 281 Anti-condensation unit - CALEFFI

Zone module and collector 281 Anti-condensation unit - CALEFFI
Zone module and collector 281 Anti-condensation unit - CALEFFI

Zone module and collector 281 Anti-condensation unit - CALEFFI
Zone module and collector 281 Anti-condensation unit - CALEFFI

Zone module and collector 281 Anti-condensation unit - CALEFFI
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