DriSteem Vapormist Installation, Operation And Maintenance Manual
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DriSteem Vapormist Installation, Operation And Maintenance Manual

DriSteem Vapormist Installation, Operation And Maintenance Manual

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Va p or m is t
E l e c t r i c H umi di f i e r
In stallation , Op eratio n
and Maintenance Man u al

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Summary of Contents for DriSteem Vapormist

  • Page 1 ® Va p or m is t E l e c t r i c H umi di f i e r In stallation , Op eratio n and Maintenance Man u al...
  • Page 2 W A R N I N G ! Read this manual before installing. Leave manual with product owner. Disconnect electrical power before installing supply wiring. Contact with energized circuits can cause severe personal injury or death as a result DRI-STEEM ® technical support of electrical shock. 800-328-4447 This product must be installed by qualified HVAC and electrical...

  • Page 3: Table Of Contents

    Clearance recommendations ......7 Download DRI-STEEM literature Supply water and drain piping ......8 ®...

  • Page 4: Product Overview

    (RO) control water levels using a float valve and low water cutoff switch. Convert to a different water type in the field Vapormist standard water models can be converted in the field OM-7396 for use with DI/RO water. Vapormist-DI models can be converted in the field for use with potable or softened water.
  • Page 5 Dispersion assembly options Figure 3-3: SDU-E In addition to single tube dispersion, shown in Figure 2-3, the dispersion options shown on this page are available for Vapormist humidifiers. See pages 14-30 for installation instructions. Figure 3-1: Ultra-sorb ® dispersion Space Distribution Unit (SDU) shown...

  • Page 6: Electrical Specifications, Capacities And Weights

    ** For wire sizing, the highest leg draw is shown due to current imbalance. † Add the following to Vapormist weights if using an SDU option (these weights are for additional control components housed within the Vapormist cabinet): – SDU-I: 12 lbs (5.5 kg) –...

  • Page 7: Dimensions

    Figure 5-1: Dimensions 24.2" Top view (614 mm) 2" (50 mm) 10.9" 2" (50 mm) (276 mm) 1" (25 mm) 2.25" (57 mm) Power wiring knockout Steam outlet Control or SDU wiring knockout Venting Front view Left side view 18.6" (472 mm) 1.50"...

  • Page 8: Choosing A Location For The Humidifier

    Choosing a location for the humidifier When selecting a location for the humidifier, consider the following: Proximity to duct Install the humidifier near the air duct system where the dispersion assembly will be located. The maximum recommended length for vapor hose connecting a single humidifier to a dispersion assembly is 10' (3 m).

  • Page 9: Mounting The Humidifier

    3/8" (10 mm) toggle bolts or two 3/8" (10 mm) machine bolt lead anchors. Secure cabinet in place. Figure 7-1: Clearance recommendations Top (when SDU is not mounted directly above the Vapormist): 18"(460 mm) To dispersion assembly Right side electrical Secured to controls: 36" (915 mm)

  • Page 10: Supply Water And Drain Piping

    Figure 8-1: Vapormist (standard water models) field piping overview Steam vapor hose; may also use pipe or tubing. See Table 16-1 for maximum piping lengths Water supply line; water pressure must be between 25 psi and 80 psi (175 kPa and 550 kPa);...
  • Page 11 Figure 9-1: Vapormist-DI (deionized/reverse osmosis water models) field piping overview Steam vapor hose; may also use pipe or tubing. See Table 16-1 for maximum piping lengths. Water supply line; water pressure must be between 25 psi and 80 psi (175 kPa...
  • Page 12 212 °F [100 °C] minimum). If drainage by gravity is not possible, use a reservoir pump rated for 212 °F Figure 10-1: (100 °C) water (DRI-STEEM Part No. 400280 for 120V pump and Drane-kooler water tempering device Part No. 400281 for 230V pump).

  • Page 13: Wiring

    Power supply wiring must be rated for 105 °C. circuits can cause property damage, severe When selecting a location for installing the Vapormist, avoid personal injury, or death as a result of areas close to sources of electromagnetic emissions such as power electric shock and/or fire.
  • Page 14 W A R N I N G ! Figure 12-1: Shielded/screened cable drain wire connection to lug DRI-STEEM strongly recommends installing a Vapormist side view duct airflow proving switch and a duct high limit humidistat. These devices prevent a humidifier from making steam when there is low airflow in the duct or when the RH level...

  • Page 15: Humidistat And Transmitter Placement

    Humidistat and transmitter locations are critical Humidistat or transmitter location has a significant impact on humidifier performance. In most cases, it is recommended that you do not interchange duct and room humidity devices. Room humidity devices are calibrated with zero or little airflow; whereas duct humidity devices require air passing across them.

  • Page 16: Dispersion

    15-17 required for absorption to occur. If you have questions about units) information, pages 18-21 absorption distances, see the non-wetting tables in the Vapormist catalog, available for viewing, printing or ordering at pages 22-23 www.dristeem.com ®...

  • Page 17: Interconnecting Piping Requirements

    I m p o r t a n t : Connecting humidifier to dispersion assembly with vapor hose Failure to follow the recommendations in this section can result in excessive back maintain a minimum pitch of 2"/ft (15%) back to the humidifier. pressures on the humidifier.
  • Page 18 Connecting humidifier to dispersion assembly with tubing or pipe (continued) condensation. lubricants used to thread the pipe. This will minimize the possibility of tank foaming. Denatured alcohol or mineral spirits work best for removing lubricant. use the recommend installation as shown on Page 17. Table 16-1: Maximum steam carrying capacity and length of interconnecting vapor hose, tubing and pipe* Vapor hose...

  • Page 19: Drip Tee Installation

    Vapormist pipe to reduce steam loss humidifier Tubing or pipe drip tee, by installer. To dispersion assembly DRI-STEEM part numbers for 304 stainless steel inline tees: 6" (150 mm) recommended ¾" (DN20) 8" (200 mm) minimum 1" (25 mm) air gap Open funnel or floor drain.

  • Page 20: Sdu-I And Sdu-E

    Mounting the SDU-I and SDU-E the Vapormist Both SDUs can be mounted on a wall directly above the Vapormist cabinet or mounted on a wall remote from the Vapormist. Use the mounting template on the box for correct placement. Two lag bolts are provided with each fan unit.
  • Page 21 If the SDU-E or SDU-I is installed immediately above the * Measurement taken 6.5' (2 m) in front of SDU cabinet. Vapormist, disconnect both hose clamps on the steam hose, grip the hose and rotate it to break it loose from the tubing, and then...
  • Page 22 Condensate drain connection to SDU-E fan unit W A R N I N G ! 1. Piping must be minimum ¾" I.D. (DN20) and rated for 212 °F If standing water is allowed to accumulate in (100 °C) minimum continuous operating temperature. the dispersion box: 2.
  • Page 23 /s) blower (120 V, single- phase, 60 Hz) and an airflow proving switch field-wired to the Vapormist humidifier electrical panel. A wiring diagram of the SDU-E is included with the unit. On a call for humidity, the humidifier begins producing steam and the start relay energizes the SDU-E blower.

  • Page 24: Single Tube

    See Mounting nut Table 16-1 for maximum 3/8" - 16 (M10) Pitch* piping lengths. Secure and seal Vapormist Tube pitch: 2"/ft (15%) escutcheon plates humidifier 90° long sweep or Notes: two 45° elbows * Pitch vapor hose,...
  • Page 25 6" (150 mm) drain 1/8"/ft (1%) recommended ¼" NPT (DN8) Water seal ½" O.D. (DN15) condensate drain tube. Vapormist 5" (125 mm) Pitch ¼”/ft (2%) toward escutcheon plate. humidifier Notes: ¾" (DN20) (minimum) condensate drain tube 1. Pitch vapor hose, tubing or by installer.

  • Page 26: Rapid-Sorb

    Rapid-sorb components with packing list. Report any performance such as leaking gaskets, blown shortages to DRI-STEEM factory immediately. The components water seals, erratic water level control, and typically include the following: spitting condensate from the dispersion –...
  • Page 27 Rapid-sorb pitch requirements horizontal airflow duct, consider the following pitch issues: – For 1½" (DN40) dispersion tubes use a fastener of sufficient length to accommodate the 1/8"/ft (1%) pitch requirements toward the ¾" pipe thread (DN20) header drain fitting. – For 2" (DN50) dispersion tubes, the bracket can be mounted flush to the ductwork.
  • Page 28 Vapormist humidifier form on nearby surfaces. Refer to governing codes for drain pipe 2 Use DRI-STEEM’s hard pipe size and maximum discharge water temperature. adapter kit to connect the steam outlet to hard pipe. Use a hose clamp to connect the steam outlet to vapor hose.
  • Page 29 Note: Fasten the L-bracket to the end of the dispersion tubes with the provided bolt, lock washer, and flat washer. See Page 30 for steam supply and condensate drain line connection 5. Before tightening the L-bracket bolts to the dispersion tubes instructions.
  • Page 30 flash using tubing or pipe steam, or condensing on nearby surfaces may occur. Refer to governing codes for drain pipe Vapormist humidifier size and maximum discharge water temperature. OM-7399 Assembly and installation instructions for a Rapid-sorb installed...
  • Page 31 lubrication is necessary, DO NOT use a petroleum-based lubricant. 5. Allow the dispersion tubes to rest against the bottom of the duct. 6. Position the flange of the L-bracket so it is upstream of the tubes when the assembly is rotated into position. Fasten the L-bracket to the end of the dispersion tubes with the provided bolt, lock washer, and flat washer.
  • Page 32 Steam supply connections to the Rapid-sorb header 1. Connect the steam supply interconnecting piping from the humidifier to the Rapid-sorb. The steam supply piping requires a minimum of 1/8"/ft (1%) pitch toward the header. 2. If multiple humidifiers are supplying one Rapid-sorb, a multiple steam supply connector is provided.

  • Page 33: Start-Up Procedure

    After the system is installed and connected properly, you can begin W A R N I N G ! start-up procedures. Only qualified electrical personnel should 1. Verify that the Vapormist humidifier, controls, piping, electrical perform start-up procedure. connections, steam supply, and dispersion assembly(s) are installed according to the following:...

  • Page 34: Standard Water Models Maintenance

    The skim time is field adjustable using the Vapor-logic keypad. Each time the Vapormist refills, it fills to an elevation near the lip of the skim/overflow fitting. A portion of the refill water then flows to the drain carrying most of the minerals left by the previous evaporating cycle.
  • Page 35 – When the fill valve closes, select Manual Drain in the Control DRI-STEEM's Humidifier De-scaling Solution, Modes screen and let the tank drain dry. The humidifier should available for purchase from your DRI-STEEM be cool enough to work on. representative or distributor.
  • Page 36 Contact with energized circuits can cause property damage, severe personal injury or death as a result of electrical shock. – If the Vapormist has an SDU mounted directly above it, the SDU cover must be removed before removing the humidifier cover.
  • Page 37 Table 35-1: is solidly connected to tank. Vapormist torque specifications Torque seated and the chamber is sealed. Screw or lug location inches - lbs – Reconnect the fill line. – Reconnect the electrical plugs (plugs are color coded). Power block –...

  • Page 38: Di/Ro Water Models Maintenance

    DI water models (Vapormist-DI) W A R N I N G ! Vapormist DI models use DI/RO water. Because these water types Do not remove the humidifier electrical panel are mineral-free, cleaning the evaporating chamber should not be cover or the heater terminal cover until necessary.
  • Page 39 2. Loosen the four cover bolts and remove the cover assembly from the tank. 3. Inspect the tank interior for debris or pitting. 4. Inspect the valve inlet for debris. 5. Check the operation of the float valve and the condition of the float seat.

  • Page 40: Replacement Parts

    Figure 38-1: Humidifier replacement parts Vapormist standard water model Vapormist-DI water model Note: Refer to the table on the next page for replacement part numbers. OM-768...
  • Page 41 Table 39-1: Replacement parts (refer to drawing on Page 36) Description Qty. Part no. Description Qty. Part no. Head bolt, large Phillips, ¼ - 20 × 1" 700300-013 Nut, 8-32 hex, pltd 700200-002 Thermo cut-out 409560-001 Cover, humidifier electrical panel 120277 Cover, heater terminal Fill adapter, VM 2-4...
  • Page 42 Figure 40-1: Space distribution unit, external absorption (SDU-E) OM-1503 Table 40-1: SDU-E replacement parts Description Qty. Part number Shroud 330002-001 Blower, SDU99 external assembly Switch, airflow 406190 Screw, 8-32 × 1½" PHMS Phillips 700170-007 Nut retainer, 8-32 409593-001 Cap, black 409593-002 Dispersion chamber for SDU with 1½"...
  • Page 43 Figure 41-1: Space distribution unit, internal absorption (SDU-I) OM-1504 Table 41-1: SDU-I replacement parts Description Qty. Part number Shroud 330001-002 Blower, SDU99 external assembly Switch, airflow 406190 Screw, 8-32 × 1½" PHMS Phillips 700170-007 Nut retainer, 8-32 409593-001 Cap, black 409593-002 Tubelet, 0.375"...
  • Page 44 Figure 42-1: Vapormist subpanel with SSR OM-213-4 Table 42-1: Subpanel replacement parts Description Qty. Part number Description Qty. Part number Subpanel, VM99 barrier 120801 Main board, VL3 408491-x.x.xM** DIN rail, 8" long 167765-008 Display board, VL3 408491-x.x.xD** DIN rail, 10.75" long...
  • Page 45 Figure 43-1: Table 43-1: Vapormist subpanel with SDU Subpanel replacement parts Description Qty. Part number Subpanel, VM99 barrier 120801 DIN rail, 8" long 167765-008 Lug wire 409250-003 Ground lug, medium 409250-027 Block, DIN rail terminal end 408252-006 Transformer 408965-001 120/208/240/480 V...

  • Page 48: Two-Year Limited Warranty

    OF ITS PRODUCTS. The exclusion applies regardless of whether such damages are B-3520 Zonhoven sought based on breach of warranty, breach of contract, negligence, strict liability in Belgium tort, or any other legal theory, even if DRI-STEEM has notice of the possibility of such damages. +3211823595 (voice) +3211817948 (fax) E-mail: marc.briers@dristeem.com...

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