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READ AND SAVE THESE INSTRUCTIONS ® VAPORSTREAM Models VLC and VLDI ELECTRIC STEAM HUMIDIFIERS Installation Instructions Maintenance Operations Manual For Toll-Free Technical Support, Call 1-800-328-4447 UL LISTED CUL LISTED...
We therefore urge you to become familiar with the contents of this manual. This manual covers material for both VAPORSTREAM Model VLC and VAPORSTREAM Model VLDI humidifiers. Most of the application material will apply to both units. When information differs for the two units, it will be noted as such.
However, VAPORSTREAM ® Model Evaporating Chamber Skimmer Port Outlet VLC humidifiers are available for use Fill Valve with these water types. The stan- Needle Valve dard humidifier can be converted in the field to a VLDI model. See Manual or Electric ®...
MECHANICAL SPECIFICATIONS AND CAPACITIES Table 4-1: Mechanical Specifications and Capacities Heater stage identifies the number of contactors. ** Three-phase power supply connection. All heater loads are wired delta. Capacity Notes Another factor to consider is condensation steam loss from Approximately 172 BTUs (400 kJ) are required to raise the hoses and tubes.
® VAPORSTREAM MODEL VLC AREA-TYPE HUMIDIFIER Figure 6-1: Principle of Operation AREA-TYPE Humidifier Application Steam created in the evaporating chamber (1) flows up Information through the chute (2), and is distributed into the space (3) The operating characteristics of AREA-TYPE steam via the fan.
The drain pan must be connected to the sanitary most cases, scale that forms on the heating elements waste water system. continuously flakes off as it forms and the loose scale Figure 7-1: VLC Mounting Methods 1. Floor Stand Method 2. Trapeze Hanger Method 3. Wall Brackets Method 24 ¾"...
All wiring must be in accordance with all local ® codes, and with VAPORSTREAM Model VLC wiring diagram. The diagram is inside the control cabinet. The wiring between the control cabinet and humidifier must be rated at 105°C minimum.
This method requires a water seal and an air gap Min. Condensate Drain Line Sizing to prevent back pressure from the VLC chamber. Exces- • One or two tubes: 3/4" (20 mm) I.D. sive back pressures imposed on the humidifier may lead •...
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1-½" (38 mm) Dia. Vapor Hose or Hard Tubing* 6" (150 mm) Min. ® VAPORSTREAM Water Seal VLC or VLDI ½" (50 mm) O.D. Condensate (5" (125 mm) approx.) Humidifier Drain Tube Condensate Drain Tube by Others** (3/4" (20 mm) minimum)
1. Remove the weather cover top and panels C and D to four sizes, designed to fit over a 3, 6, 9, or 12 heater VLC access the water and electrical connections. A 7/16"...
Secure the channel to the duct. Position hose RAPID-SORB components with packing list. Report cuffs or slip couplings over tube and header tube nipples, any shortages to the DRI-STEEM factory immediately. and secure with clamps. 2. Provide necessary access in and around duct work.
RAPID-SORB ® ASSEMBLY AND INSTALLATION Vertical Duct Installation Install the RAPID-SORB with dispersion tubes and header pitched to condensate drain as shown in figures 14-1,14-2, and 14-3. See "Instructions for Horizontal Duct" for additional information on page 13, as applicable. Figure 14-1: Plan View Figure 14-2: Elevation View Tube without Drain Airflow...
Figure 15-2: Piping method recommended when The VAPORSTREAM ® Model VLC has a one-inch (25 humidifier must be mounted higher than the duct: mm) internal “air gap”. However, local codes may require a vacuum breaker.
PIPING DIAGRAMS: STEAM, WATER AND DRAIN Standard Unit (Non-DI/RO Water) Solenoid Water Make-up Valve Needle Valve Water Skim/Overflow Outlet - ¾" (20 mm) Water Supply Line (25 psi minimum) Manual or Optional Electric Drain Valve Drain and Water Seal Piping - ¾" (20 mm) (by installer) Clean-out Tray Heaters...
Verify that all wiring connections have been made in accordance with all governing codes and the enclosed ® VAPORSTREAM VLC wiring diagram. Caution: Overtightening cover will cause leaks. Caution: Only qualified electrical personnel All cover knobs are turned down at the factory until the should perform start-up procedure.
3/8" (10 mm), of the probe should be brushed clean with should be installed. Even though the VAPORSTREAM stainless steel wool. VLC has an internal 1" (25 mm) air gap, some local codes 3. Cleaning Skim Overflow Port - Loosen deposits with may require a vacuum breaker.
REPLACEMENT PARTS ® VAPORSTREAM Model VLC Humidifier OM-907 Description Part No. Tank 167700-TAB Cover, One Heater 167710-TAB Cover, Three Heater 167715-TAB Cover, Six Heater 167720-TAB Cover, Nine Heater 167725-TAB Cover, Twelve Heater 167730-TAB Cover, Heater Louvered 167740-TAB Knob, T-Handled Utility...
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REPLACEMENT PARTS VAPORSTREAM Model VLDI Humidifier OM-908 Description Part No. Tank 167700-TAB Cover, One Heater 167710-TAB Cover, Three Heater 167715-TAB Cover, Six Heater 167720-TAB Cover, Nine Heater 167725-TAB Cover, Twelve Heater 167730-TAB Cover, Heater Louvered 167740-TAB Knob, T-Handled Utility 700725 Heater 409600-TAB Gasket, Cover...
WAY RELATED TO THE MANUFACTURE OR THE USE OF ITS PRODUCTS. The exclusion applies regardless of whether such damages are sought based on breach of warranty, breach of contract, negligence, strict liability in tort, or any other legal theory, even if DRI-STEEM has notice of the possibility of such damages.
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Printed on recycled paper. Minimum 10% Post-consumer Waste. Continuous product improvement is a policy of DRI-STEEM Humidifier Company therefore, product features and specifications are subject to change without notice. DRI-STEEM, RAPID-SORB, STS, LTS, VAPOR-LOGIC and VAPOR-LOGIC are Registered Trademarks of the DRI-STEEM Humidifier Company.