389 Switchgears and Control Devices AS Control Devices Series description Wilo-AS 08 μP/AS 1.5 μP Wilo Catalogue A1 - Circulating pumps in glandless design Heating, Air-conditioning, Cooling Potable water circulation Solar thermal Service/Accessories, Systems Switchgears and Control Devices Pump Management Systems Wilo-AS-System Stepless control system with microproces- sor, differential pressure-sensitive, for phase control-based low- and mid-perform- ance ranges for glandless pumps (single and twin-head pumps) of all makes. AS 08 P P • For single-phase and three-phase AC motors with max. current con- sumption I = A 3 AS 1.5 P P • For three-phase AC motors with max. current consumption I = 6 A Application • Differential pressure-sensitive perform- ance control of glandless circulating pumps • Speed range between 100 % and 60 % • Simple installation: The control facility is inserted into the electrical power wiring. Transmitter connections to pipework or to the pump • Can be controlled externally by means of potential-free contacts • Potential-free run and fault signal • Universal device for wall-mounted/switch cabinet door installation (AS 1.5 P P only wall-mounted installation) Main switch functions • Automatic, load-sensitive, stepless pump speed control as a function of differential pres- sure ( ' p). • Random duty point adjustments by making corrections at the signal transmitter or in the unit. • Manual main switch switchover from control- led to mains operation. • Overriding ON/OFF control by means of on- site external potential-free contact (e.g. SK time switch 613 or mixing valve motor limit switch). • Overriding MIN operation by means of exter- nal potential-free contact (e.g. SK time switch 613 or mixing valve motor limit switch). • Full motor protection with fault trip for pumps with integrated thermal winding contacts (WSK). Standard equipment • Main switch Mains-Off regulation • Automatic reactivation after power failure • Short-circuit-proof thanks to integrated fuses • All control/transmitter inputs interference- voltage-proof up to 400 V • Potential-free contacts for run and fault signal • Indicator lights: Operation 1 pc. Fault 1 pc. Differential pressure too great 1 pc. Differential pressure too little 1 pc. Functional sequence Decreasing differential pressure will be responded to by increasing the motor speed until setpoint pressure is reached again. Rise of differential pressure will be counteracted by speed reduction until the set level is reached again. An external potential-free contact can be used to switch over to a fixed min. speed (about 60%). Note: Ideal for retrofitting to glandless pumps of all makes. Connecting cables (provided by customer) Mains - switchgear: min. 5 x 1.5 mm 2 with three-phase current, min. 3 x 1.5 mm 2 with single-phase current. Switchgear - motor: min. 7 x 1.5 mm 2 for three-phase pumps with thermal winding contact (WSK), min. 5 x 1.5 mm 2 for AC pumps with WSK, min. 5 x 1.5 mm 2 for three-phase pumps without WSK, min. 3 x 1.5 mm 2 for AC pumps with- out WSK. Switchgear transmitter (5 m cable included in the scope of delivery of the signal trans- mitter): DDS (up to 100 m): at least 2 x 1.5 mm 2 Cable for ext. ON/OFF switch: (e.g. SK 613) 2 x 1.5 mm 2 , max. cable length 100 m, contact open: pump stops Cable for ext. Min. switch: (e.g. SK 613) 2 x 1.5 mm 2 , max. cable length 100 m, con- tact open: pump runs at min. speed Connecting cable for potential-free run/ process signal: 2-core, cross-section as required (contact rating max. 250 V/1 A/ 150 VA). Connecting cable for potential-free fault signal: 2-core, cross-section as required (contact rating max. 250 V/1 A/150 VA). Twin-head pump operation possible with 2 AS units. Automatic, load-sensitive ' p-regulation and fault-sensitive switch- over of twin-head pumps or 2 single-head pumps. Connecting cable: 3 x 0.75 mm 2 or 2 x 0.75 mm 2 shielded, max. cable length 2 m. Accessories (at additional charge) DDS differential pressure switch SK 613 switchgear Wilo-AS control card (2–10 V) for installa- tion in AS unit for remote setting of ' p set- point value. Required transmitter: DDG (4-20 mA) (also see: CR system accessories) AS Control Devices Series descrip- tion Wilo- AS 08 μP/ AS 1.5 μP 390 Subject to change without prior notice 09/2006 WILO AG Switchgears and Control Devices AS Control Devices Series description Wilo-AS 08 μP/AS 1.5 μP Dimension drawing Technical Data Dimensions in mm AS 08 μP AS 1.5 μP Operating voltage 1~230/3~400 V 3~400 V Control voltage 230 V Frequency 50 Hz Maximum output current I 3 A 6 A Min. output power P 2 75 W 500 W Maximum power loss 20 W 25 W Protection class IP 41 Ambient temperature 0 up to +40 °C Maximum back-up fuse 10 A (slow-blow) Weight 2.5 kg 3.5 kg 244 (360) 260 (380) 265 (384) 228 (277) 224 (270) 183 (223) 74 ~11 34 ** * Ø 5 ** Required clearance for cable outlet 80 mm * Protruding part for cabinet installation (AS 08) 105 ~11 AS 08 AS 1.5 391 Switchgears and Control Devices AS Control Devices Wilo-AS 08 μP/AS 1.5 μP: Signal Transmitters and Accessories Wilo Catalogue A1 - Circulating pumps in glandless design Heating, Air-conditioning, Cooling Potable water circulation Solar thermal Service/Accessories, Systems Switchgears and Control Devices Pump Management Systems Wilo-DDS signal transmitter Dimensions in mm Fixing sundries provided by customer For wall-mounted installation as differential pressure switch suitable for two-position control in response to manual switch point setting in conjunction with stepless speed control by Wilo-AS control devices: Pressure measuring DDS 6: 0 to 0.6 bar ranges 1) : DDS 10: 0 to 1.0 bar DDS 16: 0 to 1.6 bar > Scope of delivery: DDS contains 2 pc. cutting-ring unions DIN 3862 ø 6 mm and two pcs. angle cut- ting-ring unions R 1 e 8 x ø 6 mm. Built-in pressure-surge throttlers. 5 m cable as described above. 3 (Pressure measuring lines and -way pressure-gauge cocks to be provided by customer.) > Technical Data Max. contact load: 24 V/20 mA DC Switch hysteresis: 5% Protection class: IP 54 Max. pressure rating: 16 bar Adjustment range: 15% to 100 % from upper limit of scale Medium temperature: 0 °C to +80 °C Ambient temp.: 0 °C to +40 °C Electrical Connection 2) : 5 m cable, 2 x 0.75 mm 2 Weight: about 1.3 kg 1) Pressure measuring range selected in accordance with pump performance point 2) on-site lengthening possible; see Installa- tion and operating manual Wilo-AS control card Additional board for equipping the Wilo- AS-System Series control devices for remote adjustment of the setpoint differen- tial-pressure value (e.g. by BA or DDC sub- station) via an analogue voltage signal 2 - 10 V in conjunction with Wilo-DDG signal transmitter. > Design Plug-in additional board for remote setpoint adjustment with a 2 - 10 V analogue voltage input corresponds to the 4 - 20 mA measur- ing range of the Wilo-DDG signal trans- mitter used (also see Wilo-DDG signal transmitter). > Technical Data Setting range: 2 - 10 V corre- sponds to the measuring range of the DDG used Hysteresis: 2.5% of the meas- uring range end value of the DDG used Max. input voltage: +/- 30 V Resistance: 40 k : Ambient temp.: 0 °C to +40 °C Dimensions: 68 x 48 mm Weight: about 0.2 kg Wilo-SK signal transmitter 613 Dimensions in mm Fixing sundries provided by customer For wall-mounted installation as time switch with switch contacts suitable for automatic time-sensitive control functions in conjunction with Wilo-AS control devices. - Overriding setback to the Min. motor speed - Overriding ON/OFF switching of the pump motor being controlled - Duty cycling of twin-head pumps or two single-head pumps in conjunction with 2 AS units. > Standard equipment - Time switch with daily programme, adjustable in 1 / 4 -hour stages - Potential-free NO contact for control of AS units > Special version (at additional charge) - Other operational voltages upon request - Time switch with day/week programme and battery backup 120 hours > Technical Data Operating voltage: 230 V Frequency: 50 Hz Power loss: 1.7 W Max. switch rating: max. 10 A Protection class: IP 31 Ambient temperature: 0 °C to +40 °C Weight: 0.25 kg Wilo-AS 08 μP/AS 1.5 μP: Signal Transmit- ters and Accesso- ries 108 130 84 56 10 Ø 4 392 Subject to change without prior notice 09/2006 WILO AG Switchgears and Control Devices AS Control Devices Wilo-AS 08 μP/AS 1.5 μP: Signal Transmitters and Accessories Wilo-DDA differential-pressure gauge Dimensions in mm Fixing sundries provided by customer Wall-mounted gauge. Universal utilisation for optical head/pressure check procedure, measuring and testing in installations: • Differential pressure readings between feed and return lines in heating systems • Monitoring of heating circulating pumps • Monitoring of filters, compressors, fans, etc. • Checking transmission links: measuring point – monitoring station – actuator – pump drive Pressure measurement ranges: DDA 6: 0 to 0.6 bar DDA 16: 0 to 1.6 bar DDA 40: 0 to 4.0 bar > Technical Data Maximum pressure rating: up to 25 bar Measuring accuracy: ± 2.5% of upper limit Ambient temp.: -10 °C to +80 °C Media temp.: 0 °C to +85 °C Installation position: any Weight: about 1.2 kg Type bush type pipe union dia. 6 mm Ø Ø