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SGH Steam
Generating Humidifier
Installation and
Operation Guide
IMPORTANT: Read and save this guide for future
reference. This guide to be left with equipment owner.
SL-14050 Form # 99-428 Rev. 1 / 150-1633 Rev. A
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Table Of Contents INSTALLATION 1 RECEIVING & UNPACKING EQUIPMENT ................................1 PRE-INSTALLATION CHECKPOINT ...................................1 BASIC HUMIDIFIER CONFIGURATION..................................1 LOCATION & MOUNTING.........................................1 HUMIDIFIERS .............................................1 BLOWER PACKS............................................2 STEAM DISTRIBUTORS........................................3 PLUMBING.......................
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3. Report any discrepancy immediately. INSTALLATION BASIC HUMIDIFIER CONFIGURATION RECEIVING & UNPACKING EQUIPMENT Liebert humidifier model SGH has a right side 1. Check packing slip to ensure ALL material has electrical compartment. Each electrical compartment been delivered. has a hinge-down front door which is removable from any partially or fully opened position. Each electrical 2. All material shortages are to be reported to compartment has a screw-mounted right side cover Liebert within 48
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to clearances required for plumbing, electrical, and In addition, install a minimum of 2 field control entrances. The clearance dimensions shown supplied fasteners in the holes provided in the in this manual are for reference only and are the back of the unit to prevent the unit from being minimum required for maintenance of the humidifier. bumped off the wall bracket. Local and National Codes should be consulted prior to 6. Make sure humidifier is level. final location and installation of the h
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Figure #5 Figure #6 Overhead and Frontal Clearances for Blower Remote Mounted Blower Packs (SGBP) Packs WALL SIDE FRONT SGH Min. Min. Overhead Min. Front 3.2” A Model Number Clearance Clearance (8 cm) of Blower inches (cm) inches (cm) Packs 010 1 18 (45) 30 (76) POWER AND CONDENSATE CONTROL STEAM 020 1 18 (45) 36 (91) WIRING FROM HUMIDIFIER 050 1 36 (91) 84 (213) 100 1 48 (122) 156 (396) 005-030 050-100 10-20 050-100 See Figure #6 for mounting clearances. 200 2 42 (122) 156 (396) A 3.2" (8.0cm)
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Figure #7 downward slope to the distributor will result in Steam Distributor Location poor condensate drainage and “spitting” of condensate in duct. See Figure #9. 6' Min. Figure #9 Leveling Distributor 6' Min. Wrong Mount Steam Distributor At Least 6' (2 M) From Elbow Multiple Steam Distributors Can Reduce This Distance Support (If Needed) Correct Always Mount Level 5. Exercise extreme caution when installing in fiber glass or internally lined ducts. 6. High positive or negative static pressure
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10. Any distributor longer than 3 feet (1 meter) below is proportioned accordingly. See Figure should be supported at its end with a threaded #14. For short steam absorption systems see rod through top or bottom of duct. See Figure Figure #13. #10. Figure #14 11. It is recommended that single distributors are Multiple Steam Distributors for Better Mixing mounted near the bottom of the duct to ensure the steam is dispersed into the majority of the MIN. H = 16" air flow. See Figure #12. 8" 4" 4" 4
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5. ALWAYS supply and install a shut off valve in codes prohibit it. Route to a floor drain or the water supply line dedicated to the equivalent for safety reasons, since drain humidifier to facilitate servicing. Use ½"OD water from humidifier can be very hot. copper to within 4 feet of the humidifier. Reduce copper to 3/8" OD and connect to the 3. Keep drain lines as short as possible. Keep drain lines sloped down, not level and not factory-supplied 3/8" olive compression fitting under the humid
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3. Liebert steam supply hose or field-supplied 6. To ensure odor-free steam, always use Liebert piping should be sloped downwards from the steam hose. Check steam hose and hose steam distributors to the humidifier. Slope couplings periodically for cracks, breaks, should be at least 2" in 12" to promote kinks. Replace as required. DO NOT condensate runback. See Figure #18. If this substitute hose. Liebert is not responsible for slope is not possible, condensate must be health effects or damage fr
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ACCESSORIES - FILL CUP EXTENSION KIT(S) condensate hose with clamps is supplied with Liebert’s steam distributors to serve as a 1. The SGH humidifier is an electrode humidifier. flexible coupling. DO NOT direct solder field It produces steam at atmospheric pressure. copper condensate line to steam distributors. Pressure head must develop to push steam through supply line and into air duct. 2. Always incorporate a trap in routing of condensate return line. Condensate that 2. Combined resistance o
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impeding condensate flow when duct on the steam distributor, starts the fan when pressures are below atmosphere. steam is generated. 6. The condensate line can go to either of two 3. All blower packs have high efficiency blowers large holes in the fill cup cover on top of to minimize the frontal and overhead humidifier. clearance required to absorb the steam. 7. It is not necessary to return the condensate to 4. All built-on blower packs are factory wired to the humidifier. humidifier. Primary v
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information is relevant to all controls, factory supplied or down stream from distributor. Mount it or otherwise. where air’s humidity and temperature are uniform and representative of spaces being A, B and C (described below) are to be wired in humidified. series (only one path for current) across terminals 8 and 10 on the low voltage control terminal strip, or 3. Mount duct high limit humidistat replaced with a jumper wire for constant operation downstream of steam distributors far enough (see
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4. The modulation signal must increase from and the humidifier starts its operation. The controller minimum toward maximum as sensed RH waits 10 seconds before energizing the on-board (actual RH) drops below desired RH (%RH relays. When the relays energize, heating voltage is setpoint). In response, humidifier’s steam delivered to the cylinder. After a 30 second delay, the output will increase from minimum toward fill valve is activated (if the output from the cylinder is maximum. When humidifie
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satisfied and stops again. The resultant short-cycling using a screwdriver, press the reset button (marked is easily overcome. with a red dot) inside the blower packs. A manual capacity adjustment potentiometer Units are also equipped with speed select switch. (“pot”) is provided on the SGH main pc board for that The switch is located on the right-hand side of the purpose. It is marked “CAPACITY ADJUST” and is blower, inside the blower pack. To access the switch, adjustable from 25 to 100% of ra
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LIMITED WARRANTY Liebert Corporation (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years from date of shipment, that THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted (with the exception of the cylinder) are free from defects in material and workmanship. No warranty is made against corrosion, deterioration, or suitability of substituted materials used as a result of compliance with government regulations. THE COMPANY’s oblig
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Model # :_________________________ Serial # :__________________________ Cylinder # :_________________________ Cylinder Last Replaced: _________________________ MTH/DAY/YR _________________________ MTH/DAY/YR _________________________ MTH/DAY/YR LIEBERT CORPORATION LR-35859 Listed 1050 Dearborn Drive, P.O. Box 29186 Humidifier Columbus, Ohio 43229 E65185 Tel: (614) 888-0246 Fax: (614) 841-6882 PRINTED IN CANADA
