Product data sheet Retrofit kits Constant volume flow control CAV controllers Actuator for switching Retrofit kits between setpoint values with EN (with rotary knob) Actuator for switching between setpoint values with Type EN (with angle scale) Actuator for switching between setpoint values with Type RN For motorised setpoint value adjustment on CAV controllers and flow adjustment dampers, e.g. switching between qvmin and qvmax Actuators and installation accessories for mechanical self-powered CAV controllers Type EN, RN, or VFC, and flow adjustment dampers Type VFR ■ Parts kits for easy retrofit ■ Potentiometer or mechanical stops ■ Supply voltage 24 V AC/DC or 230 V AC Actuator with mechanical stops for Type VFC or VFR ■ Control input signal: 1-wire control or 2-wire control (3-point) for min-max switching ■ Control input signal: Signal voltage 0 – 10 V DC or 2 – 10 V DC for modulating actuators ■ Positive lock connection with CAV controller or flow adjustment damper Optional accessories for type RN ■ Auxiliary switch with adjustable switching points, for example for capturing the end positions Actuator with potentiometers for Type VFC

Retrofit kits General information 2 Variants 4 Application Parts kits for the retrofit of mechanical self-powered volume flow controllers or flow adjustment dampers with an actuator for the setpoint value adjustment of CAV controllers. Types RN, EN, VFC ■ Min/max switching of the volume flow rate setpoint values ■ Variable adjustment of the volume flow rate setpoint Flow adjustment damper type VFR ■ Min/Max change of the damper blade position ■ Variable adjustment of the damper blade position Variants B50 ■ Type of actuator LM24A-F ■ 24 V AC/DC supply ■ Min-max switching, mechanical adjustment...

Retrofit kits 1 Type NR-VAV Retrofit kit 2 Variant Retrofit actuators for RN type (incl. installation material RN) RN-B50 Retrofit B50: 3-point (min/max) actuator 24 V RN-B60 Retrofit B60: 3-point (min/max) actuator 230 V RN-B70 Retrofit B70: modulating actuator 24V RN-S2 Retrofit S2: auxiliary switch for B52, B62, B72 Retrofit actuators for EN type (*2) (incl. installation material EN (*2)) EN-B50 Retrofit B50: 3-point (min/max) actuator 24 V EN-B60 Retrofit B60: 3-point (min/max) actuator 230 V EN-B70 Retrofit B70: modulating actuator 24V EN-S2 Retrofit S2: auxiliary switch for B52, B62, B72...

Retrofit kits Retrofit kits Auxiliary switch (B * 2) type S2A Auxiliary switch S2A from variant B52, B62, B72 Retrofit actuators for type RN (incl. assembly material RN)

Modulating actuator (control input signal 2 – 10 V DC) Supply voltage *2 = Generation 2: setpoint value adjustment with angle scale. Variant E01, E02, E03 Retrofit actuators for type EN (*3) (incl. assembly material EN (*3)) Order code Retrofit Construction NR-VAV-EN-E01 Modulating actuator (control input signal 0 – 10 V DC) *3 = Generation 3: setpoint value adjustment with blue hand wheel. NR-VAV-EN-E03 Actuator with mechanical stops (M0*) for Type VFC or VFR

Retrofit kits Retrofit actuators for type VFC (incl. assembly material for M0*) Order code Retrofit Construction Supply voltage Modulating actuator (control input signal 0 – 10 V DC) Actuator with mechanical stops (M0*) for Type VFC or VFR Variant E01, E02, E03 Variant M01, M02 Retrofit actuators for type VFR (incl. assembly material for M0*) Order code Retrofit Construction Supply voltage Modulating actuator (control input signal 0 – 10 V DC)