Specifications
SD Carel USA  
 3 
Table of Contents 
1. General Installation Rules......................................................................................................................... 5 
2.  Mount Steam Humidifier.......................................................................................................................... 6 
2.1.  Position of Steam Outlets.................................................................................................................. 7 
2.2.  Mounting The Humidifier................................................................................................................. 7 
3. Connect Plumbing..................................................................................................................................... 8 
3.1.  Connect Water Feed.......................................................................................................................... 8 
3.2.  Connect Water Drain ........................................................................................................................ 8 
4. Connect Power Wiring.............................................................................................................................. 9 
5.  Connect Control Wiring.......................................................................................................................... 10 
5.1. Controls Placement......................................................................................................................... 10 
5.2. Controls Wiring .............................................................................................................................. 10 
6.  Install Steam Distributor Pipes ............................................................................................................... 12 
7.  Install Steam Hoses................................................................................................................................. 13 
8.  Install Room Distribution Unit ............................................................................................................... 14 
9.  Start up and Check out of the SD 2000 Humidifier................................................................................ 16 
10.  Operating The SD 2000 Humidifier Controller.................................................................................. 17 
10.1.  Available Controller Types......................................................................................................... 17 
10.2. Display Sequence........................................................................................................................ 19 
11.  Maintaining Your SD 2000 Humidifier.............................................................................................. 21 
11.1.  Optimizing Cylinder Life on the SD 2000 Electrode Steam Humidifier.................................... 23 
12. Trouble Shooting ................................................................................................................................ 24 
13. Replacement Parts............................................................................................................................... 30 
14. Technical Specifications..................................................................................................................... 38 
14.1.  ASWH / ASDH – ASDH / ASDC Wall – Duct Temperature/Humidity Sensors ...................... 39 
14.2.  HC-101 and HC-201 Wall and Duct Humidistats ...................................................................... 40 
14.3.  PC-301 Air Proving Switch ........................................................................................................ 41 
WARNING: Your humidifier requires water to operate. Do NOT mount it above materials or 
machinery that could be damaged if a leak occurs. Carel assumes no responsibility for 
consequential or inconsequential damage as a result of any leaks. 










