4
en
1 Overview
• Direct connection of an electric immersion heater up to 3 kW (230 V~)
• DHW heating with rapid heat-up and thermal disinfection
• Time and temperature control of the electric backup heating
• Solar backup heating suppression
• Heat quantity measurement via VFD Grundfos Direct Sensor
TM
• PWM output for the speed control of a high-efciency pump
• Quick access to the holiday and the manual modes
• Status display for a bidirectional HE pump
• Drainback option and tube collector function
• Commissioning menu
Technical data
Inputs: for 4 Pt1000 temperature sensors, thereof 1 x RCTT, 1 x Grundfos Direct
Sensor
TM
VFD, 1 x PWM feedback
Outputs: 1 semiconductor relay, 2 high-current relays for electric immersion
heater, 1 PWM output
PWM frequency: 512 Hz
PWM voltage: 10 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
14 (3) A 240 V~ / 24 V
⎓
(potential-free high-current relay)
Power supply: 100 … 240 V~ (50 … 60 Hz)
Supply connection: type X attachment
Standby: 0.67 W
Temperature controls class: I
Energy efciency contribution: 1 %
Mode of operation: type 1.B.Y action
Rated impulse voltage: 2.5 kV
Data interface: VBus
®
VBus
®
current supply: 35 mA
Functions: function control, operating hours counter, tube collector function, heat
quantity measurement, time-controlled thermostat function, DHW heating with
rapid heat-up, thermal disinfection, holiday mode and backup heating suppression
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication / Display: System-Monitoring-Display for visualisation, 16-segment
display, 7-segment display, 8 symbols for system states, background illumination and
operating control LED
Operation: 3 push buttons and 1 slide switch
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C [32 … 104 °F]
Pollution degree: 2
Dimensions: 144 x 208 x 43 mm
12.5
180
180
100
144
208
16.75
43.3
Upper fastening
Lower fastening
Dimensions and minimum distances
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