LPS Instruction Manual - HygroMatik

11.1 Connection dataPower supply:External control signal:System enabling:Group fault signal:Operating status signal:LNE 230 V AC, 50 Hz0-10 V DC4-20 mA DCvia ext. potential-free contactpotential-free contact (changeover contact)potential-free contact (NO)Note: If a residual current device should be installed upstream ofthe system a universal-current-sensitive circuit-breaker shouldbe selected.Note: When sizing the connection lines, observe that the supplyimpendance must be low! If a short circuit occurs the circuitbreakermust switch off automatically within 0.4 s. The magneticshort circuit trigger for the circuit-breaker (type B) acts immediatelywhen the flowing short circuit current is more than fivetimes the rated current.Pump group Rated power [kW] Rated current [A] Fuse [A]LPS 45 0.15 1.9 1 x 16LPS 72 0.16 2.1 1 x 16LPS 110 0.18 2.7 1 x 1611.2 System enabling / Safety chainNote: Interlock contacts, such as max. hygrostat, air flow relay,duct pressure switch, ventilator interlock etc., are placed inseries between series terminals X2.1 and X2.2 (= safety chain).Caution: If the ventilation system fails or the supply air facevelocity is too low (less than 0.9 m/s) the built-in control mustswitch off the humidifier via the safety chain. Otherwise undesiredcondensate build-up behind the droplet separator mayoccur.Caution: Integration of a max. hygrostat into the safety chain isstate-of-the-art. The max. hygrostat serves as a safety elementin case of malfunction of the humidity sensor and protectsagainst over-humidification.Caution: The contacts which are placed on terminals X2.1 andX2.2 must be potential-free and suitable for switching 24 V DC /100 mA. After the HygroMatik nozzle system LPS has beenstarted, a standard voltage of 24 V DC is applied to terminalX2.1.Page 44