Stulz DRH-04 Installation, Operation & Maintenance Manual

Note Ensure the elbow is facing the correct direction. 7) Install the new solenoid valve to the fl oat panel and re-install the pipe fi tting. Note Ensure the o-ring is not damaged. If it is damaged, replace it with a new one. 4.4.6.2 Float Switch 8) To replace a fl oat switch, remove the lock nut on the fl oat switch and replace the switch with a new one (ref. Photo 10). 4.4.6.3 Level Control Board 9) To replace the level control board, remove the lead wire terminal connectors (3 Pcs.) from ...

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1.6.12 Solid State Relay The 48 VDC operating voltage for the Ultrasonic Nebulizer Units is switched on and off by a solid state DC relay controlled by the Level Controller. 1.6.13 Level Controller The Level Controller is a microprocessor based device located in the electric box that receives inputs from sensors and other inputs and in turn controls the valves, fan and Ultrasonic Nebulizer Units. It consists of a DC-DC power supply to convert the 48VDC to 24VDC for the fans and solenoids and a fu ...

OUD0077D; April, 2013 DRH Series GEN1 Installation, Operation & Maintenance - Specifi ctions are subject to change without notice. ...