K275

Actuator with integrated regulator for R295, R296 mixing valves

Description
K275 is an actuator with constant temperature regulator and it is designed for mounting on R295/R296 mixing valves. It controls fixed delivery temperature
both heating and cooling systems, in “stand-alone” functioning. The actuator has a fixed angle rotation of 90° and possibility of manual control.
With DIP switches inside actuator is possible to set the following parameters:
• Direction of rotation (counterclockwise CCW / clockwise CW)
• Different temperature ranges depending on the application
• Reaction factor x1/x10
Typical applications:
• Maintaining a constant temperature in boiler heating circuit (protection
against condensation)
• Underfloor heating applications, industrial processes, heat accumulators
• Domestic hot water systems or swimming pools

Technical data
Electrical data
• Supply voltage: 24 Vac, 50 Hz, ± 10 % (230 Vac, 50 Hz with adapter included)
• Power: 5 VA
• Connection cable: 2 x 0,5 mm2; length 2 m
• Sensor type: KTY 81-210 PVC (cable length 1,5 m) insulation: -30 °C to 105 °C (adapter set enclosed)
Functional data
• Torque: max 15 Nm
• Rotation time: 73 s / 90°
• Manual override: manual or permanent with pushbutton (for maintenance purposes)
• DIP switches settings:
1) Direction of rotation (counterclockwise CCW / clockwise CW)
2-3) Different temperature ranges depending on the application (0÷100 °C,
60÷85 °C, 20÷70 °C, 25÷45 °C)
4) Reaction factor x1/x10
Safety
• Protection class. II
• Degree of protection: IP44
• Ambient temperature: 0÷55 °C
• Media temperature: according to valve’s specifications
• Storage temperature: -20÷80 °C
• Maintenance: maintenance free

Normative references
• EMC 2004/108/CE
• LV 2006/95/CE
• PAH 2005/69/CE