READ AND SAVE THESE INSTRUCTIONS VAPORSTREAM ® Electric Humidifier Installation, Operation, and Maintenance Manual
Warnings and cautions WARNINGS AND CAUTIONS War nings and cautions WARNING Indicates a hazardous situation that could result in death or serious injury if instructions are not followed. CAUTION Indicates a hazardous situation that could result in damage to or destruction of property if instructions are not followed. mc_051508_1145 WARNING Attention installer Read this manual before installing, and leave this manual with product owner.
Warnings and cautions War nings and Cautions WARNING Disconnect electrical power Disconnect electrical power before installing supply wiring or performing service or maintenance procedures on any part of the humidification system. Failure to disconnect electrical power could result in fire, electrical shock, and other hazardous conditions. These hazardous conditions could cause property damage, personal injury, or death.
Table of contents ATTENTION INSTALLER Read this manual before installing. Leave manual with product owner. WARNINGS AND CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii DriSteem® Technical Support 800-328-4447 SPECIFICATIONS WHERE TO FIND MORE INFORMATION Our web site: The following documents are available on our web site: www.dristeem.
Table of contents Keypad/display and troubleshooting OPERATION Start-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 MAINTENANCE Tap/softened water Water quality and skim duration . Cool-down procedure . . . . . . . . Inspection and maintenance . . . . RO/DI water option Cool-down procedure . . . . . . . . Inspection and maintenance . . . .
OVERVIEW Product overview FIGURE 2-1: VAPORSTREAM SYSTEM EXAMPLE, TAP/SOFTENED WATER Supply water guidelines Supply water quality is an important component of humidifier reliability and maintenance. Duct Examples: • Corrosive water can decrease the service life of the humidifier. • Excessive water hardness can increase the humidifier maintenance requirements.
OVERVIEW Product overview FIGURE 3-1: VAPORSTREAM HUMIDIFIER, RO/DI WATER OPTION Cover fastener See Pages 22 and 23 for detailed installation drawings. Damage caused by chloride corrosion is not covered by your DriSteem warranty. Cover Float valve FIGURE 3-2: WATER LEVEL CONTROL FOR TAP/SOFTENED WATER HUMIDIFIER Overflow VLC-OM-030 Fill valve closes when water level rises to this probe. Low-water cutoff Fill valve opens when water level is below this probe. Low-water cutoff.
SPECIFICATIONS Models, capacities, and electrical specifications Table 4-1: Vaporstream VLC capacities and electrical specifications, tap/softened water and RO/DI water VLC model (kWstages) Current draw (amps) Maximum steam capacity † Heaters Single-phase lbs/hr kg/h Qty. Stages** 2-1 5.7 2.6 1 3-1 8.6 3.9 4-1 11.4 5-1 6-1 Three-phase*** kW 120V 208V* 240V* 277V* 480V* 600V* 208V* 240V* 277V* 480V* 600V* 1 16.7 9.6 8.3 7.2 4.2 3.3 — — — — — 2 1 1 25.0 14.4 12.
SPECIFICATIONS Dimensions FIGURE 5-1: VAPORSTREAM VLC DIMENSIONS, TAP/SOFTENED WATER AND RO/DI WATER Table 5-1: Standard control cabinet dimensions and weights Cabinet size Cabinet dimensions Shipping weight* inches mm lbs kg S 16 h x 14 w x 6 d 406 h x 356 w x 152 d 32 15 M 20 h x 20 w x 7 d 508 h x 508 w x 178 d 55 25 L 24 h x 24 d x 7 d 610 h x 610 w x 178 d 73 33 XL 30 h x 24 w x 9 d 762 h x 610 w x 229 d 91 41 XXL 36 h x 30 w x 9 d 914 h x 762 w x 229 d 136 62 A C *
SPECIFICATIONS Weights and cabinet sizes Table 6-1: Vaporstream VLC weights and control cabinet sizes, tap/softened water and RO/DI water VLC model (kW-stages) Shipping weight Control cabinet size* (M, L, XL, XXL) Operating weight † Single-phase power Three-phase power lbs kg lbs kg 120V 208V 240V 277V 480V 600V 208V 240V 277V 480V 600V 2-1 35 16 79 36 M M M M M M — — — — — 3-1 35 16 79 36 M M M M M M — — — — — 4-1 35 16 79 36 M M M M M M — —
INSTALLATION Selecting a location When selecting a location for the humidifier, consider the following: Important: Installation must comply with governing codes. • Easy access for maintenance • Maximum ambient temperature for the control cabinet is 104 °F (40 °C). • Noises inherent to operation: – Fill cycles (tap/softened water humidifier) See Fill noise in tap/softened water humidifier on Page 27. See Dispersion, beginning on page 35, for dispersion assembly placement guidelines.
INSTALLATION Mounting: Overview WARNING Mounting hazard Mount humidifier per the instructions in this manual and to a structurally stable surface. Improper mounting of the humidifier can cause it to fall or tip, resulting in severe personal injury or death. mc_060110_1540 To ensure that the water level control system works properly, the tank must be mounted level from side to side and front to back.
INSTALLATION Mounting: Support legs Support legs are not available for single-heater models (2-1, 3-1, 4-1, and 5-1). These models must be mounted with a trapeze (Page 10) or an Outdoor Enclosure (Pages 14 through 21). Use enclosed bolts, nuts, and washers to fasten legs to tank. Shim or adjust so the tank sets level side to side and front to back. Verify level after the tank is filled and is at operating weight.
INSTALLATION Mounting: Trapeze hanger For overhead installations, install a drip pan to prevent possible water damage (see figure below). Secure trapeze hanger to an overhead structure that is strong enough to support the operating weight of the Vaporstream humidifier and field installed piping, plus the weight of the control cabinet if it is mounted on the humidifier. Adjust the mounting so that the tank sets level side to side and front to back.
INSTALLATION Mounting: Wall brackets FIGURE 11-1: WALL BRACKETS DriSteem recommends using 3/8" (M10) fasteners. 24.75" (629 mm) • Wood stud wall, recommended mounting — two horizontal 2 × 4s (100 mm × 50 mm timbers) with center line spaced at dimension shown in Table 11-1.
INSTALLATION Weather cover FIGURE 12-1: WEATHER COVER EXPLODED VIEW The optional Vaporstream weather cover is water-resistant and designed to protect the humidifier from rain and sun. The weather cover has been tested and approved by ETL Testing Laboratories, Inc., and is listed to UL Standard 1995 and certified to CAN/CSA Standard C22.2 No. 236.
INSTALLATION Weather cover FIGURE 13-1: WEATHER COVER DIMENSIONS Note: C Weather Covers are only available in the United States and Canada. B The Vaporstream Outdoor Enclosure is weather tight with access doors and supplemental heating and cooling. See Pages 14 through 21.
INSTALLATION Outdoor Enclosure: Overview FIGURE 14-1: VAPORSTREAM OUTDOOR ENCLOSURE WITH STANDARD OR OPTIONAL STEAM OUTLET, ELEVATION VIEW Vaporstream humidifier K Ventilation fan Standard steam outlet Ventilation fan A See Note 2 4.5" Optional steam outlet Knockouts, 4" (102 mm) on center Enclosure drain 1½" pipe thread (DN40) with male nipple Pipe chase L G DC-1481 mc_030410_1500 14 VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL Notes: 1.
INSTALLATION Outdoor Enclosure: Overview FIGURE 15-1: VAPORSTREAM OUTDOOR ENCLOSURE, TOP VIEW B Standard steam outlet (exits enclosure here) Pipe chase extending 1" (25 mm) above floor E H C D Optional steam outlet (exits enclosure through pipe chase) J F Vaporstream humidifier Side access door Control cabinet Note: Some 9-12 heater models have control cabinet mounted on humidifier Side section heater Intake ventilation fan Front section optional heater Enclosure drain DC-1482 Front access door:
INSTALLATION Outdoor Enclosure: Weights, electrical specifications, and connection sizes Table 16-1: Vaporstream Outdoor Enclosure weights Outdoor Enclosure shipping weight* Number of heaters Vaporstream model Outdoor Enclosure operating weight* lbs kg lbs kg 2-1, 3-1, 4-1, 5-1 1 485 220 530 240 6-1, 9-1, 12-1, 16-1, 21-1, 25-1 3 515 234 620 281 12-2, 18-2, 24-2, 32-2, 42-2, 50-2 6 535 243 690 313 18-3, 27-3, 36-3, 48-3, 63-3, 75-3 9 860 390 1090 494 12 910 413 1190 540
INSTALLATION Outdoor Enclosure: Operating temperatures The Outdoor Enclosure option is used when DriSteem humidifiers are installed outdoors. The following information is not intended to supersede any requirements of federal, state or local codes having jurisdiction; prior to installing the unit, consult authorities having jurisdiction. DriSteem humidifiers housed in an Outdoor Enclosure operate properly from -40 °F to 122 °F (-40 °C to 50 °C).
INSTALLATION Outdoor Enclosure: Mounting • Outdoor Enclosure must be level and located so there is enough clearance for opening access doors. FIGURE 18-1: OUTDOOR ENCLOSURE MOUNTING OPTIONS • Verify that position of support legs, pad, or curb properly support unit, and support structure dimensions coincide with unit dimensions. Flush • Locate unit so air intakes are not too close to exhaust fan outlets, gasoline storage, or other contaminants that could cause dangerous situations.
INSTALLATION Outdoor Enclosure: Mounting • Outdoor Enclosure has two available steam distribution configurations: – Standard configuration is a steam outlet on one side of enclosure for connecting to steam dispersion unit piping. – Optional internal configuration routes steam within Outdoor Enclosure and down through pipe chase into building. • See Outdoor Enclosure dimensions in Table 15-1. • Pipe chase is inside enclosure.
INSTALLATION Outdoor Enclosure: Mounting • Keypad/display with standard 5' (1.5 m) cable ships mounted to subpanel in Outdoor Enclosure. Keypad/display must not come in contact with strip heaters or block intake ventilation hood. • If constant monitoring of unit is desired, or if unit is located in a severe climate, a remote-mount keypad/display should be installed. Additional cable lengths up to 500 feet (152 m) are available as an option for this mounting configuration.
INSTALLATION Outdoor Enclosure: Operation When power is applied to Outdoor Enclosure: • If ambient temperature in Outdoor Enclosure is below 50 °F (10 °C), the strip heaters will power up. Humidifier is not allowed to operate unless temperature inside enclosure is at least 35 °F (2 °C). Strip heaters power down when temperature in Outdoor Enclosure reaches 50 °F (10 °C). Humidifier's aquastat feature allow's humidifier to continue operating until it reaches a factory default tank temperature of 70 °F (21 °C).
INSTALLATION Piping: Overview, tap/softened water FIGURE 22-1: FIELD PIPING OVERVIEW, VAPORSTREAM VLC WITH TAP/SOFTENED WATER Steam outlet Shock arrester recommended to reduce water hammer Install level Optional condensate return piping from dispersion unit Water supply line; water pressure 25 to 80 psi (172 to 552 kPa). If water piping to humidifier is nonmetallic, first 3' (1 m) of water supply piping from humidifier should be metallic.
INSTALLATION Piping: Overview, RO/DI water option FIGURE 23-1: FIELD PIPING OVERVIEW, VAPORSTREAM VLC WITH RO/DI WATER OPTION Steam outlet Install level Optional condensate return piping from dispersion unit Overflow Water supply line; water pressure 25 psi to 80 psi (172 kPa to 552 kPa); first 3' (1 m) should be stainless steel tubing. To isolate steam during system maintenance, put a 2" a (50 mm) water seal or loop in supply line.
INSTALLATION Piping: Drain The drain line piped from the humidifier must be run to an approved sanitary waste or suitable drain. If nonmetallic pipe or hose is used, it must be rated for 212 °F (100 °C) minimum continuous operating temperature. Minimum drain pipe size is 3/4" (DN20) inside diameter. If the length of the drain piping exceeds 10' (3 m), increase the pipe size to 1¼" (DN32) pipe.
INSTALLATION Piping: Drain TAP/SOFTENED WATER FIGURE 25-1: LIFTING WATER DRAIN The drain connection to a tap/softened water humidifier is a ¾" (DN20) sweat (soldered) fitting. The installer should place a union directly after the factory drain fitting, provide a water seal of height H1 (from Table 22-1), and pipe. To mount the humidifier closer to the floor, see Figure 25-1.
INSTALLATION Piping: Drain VLC with RO/DI water option and manual drain has a pipe thread fitting on the drain valve and on the skim/overflow fitting. Prior to dumping into a drain, the installer needs to connect the drain and skim/overflow, provide a water seal of height H1 (see Table 22-1), and pipe. DRAIN CONNECTION Note: This section applies to all tap/softened water VLC models and all VLC models with the RO/DI and auto drain options.
INSTALLATION Piping: Water supply Vaporstream humidifiers have a 1" (25 mm) internal air gap to prevent back siphoning into a potable water system. Some governing codes may require additional protection, such as a vacuum breaker or backflow preventer. Note: Damage caused by chloride corrosion is not covered by your DriSteem warranty. The supply water pressure range must be 25 to 80 psi (172 to 552 kPa).
INSTALLATION Piping: Water supply RO/DI WATER SUPPLY PIPING The RO/DI-water Vaporstream humidifier controls water level with a float valve. The pipe connection is a 1/4" pipe thread (DN8), except for Vaporstream humidifiers in Europe, which have a 3/8" pipe thread (DN10) connection. With the end-of-season drain option, a solenoid valve is added on the inlet of the float valve. The end-of-season feature shuts off the fill water supply and drains the tank when there is no demand for humidity for 72 hours.
INSTALLATION Wiring: Overview WIRING DIAGRAM OVERVIEW • Ladder style wiring diagrams (located inside the control cabinet door) show power, control, and humidifier to control cabinet interconnection requirements. • Heater connection diagrams (located under the humidifier terminal cover) show bussing and wire connections to heaters.
INSTALLATION Wiring: Overview CONTROL CABINET The length of wire from the control cabinet to the humidifier must not exceed 50' (15 m). The left side of the control cabinet is the control circuit side, and the right side is the power circuit side. Place conduit connection holes in the control cabinet so that the control and power wire routing is limited to their respective sides of the control cabinet.
INSTALLATION Wiring: European requirements Table 31-1: European wiring requirements 230 volt single phase 400 volt three phase Amps Wire size mm2 Ground wire size mm2 Amps Wire size mm2 Ground wire size mm2 0 - 18 2.5 2.5 0 - 15.7 2.5 2.5 18.1 - 24 4 4 15.8 - 21 4 4 24.1 - 30.7 6 6 21.1 - 27 6 6 30.8 - 42.7 10 10 27.1 - 37.5 10 10 42.8 - 57 16 16 37.6 - 51 16 16 57.1 - 75.7 25 16 51.1 - 66.7 25 16 75.8 - 93.7 35 16 66.8 - 82.5 35 16 93.8 - 113.
INSTALLATION Wiring: Preventing electrical noise Electrical noise can produce undesirable effects on electronic control circuits, thereby affecting controllability. Electrical noise is generated by electrical equipment such as inductive loads, electric motors, solenoid coils, welding machinery, or fluorescent light circuits.
INSTALLATION Wiring: Control wiring and grounding requirements CONTROL WIRING Important: The following wiring methods for external low voltage control wiring should minimize electrical noise problems: Installing the keypad/display • Humidistat, room/duct transmitter, and temperature transmitter wiring must be minimum 18-gauge (1 mm2) plenum rated, shielded (screened), twisted pair wire with a bare drain wire for grounding.
INSTALLATION Sensor placement SENSOR LOCATION IS CRITICAL Other factors affecting humidity control Sensor location has a significant impact on humidifier performance. See the recommendations below. Humidity control involves more than the controller’s ability to control the system. Other factors that play an important role in overall system control are: Note: DriSteem recommends that you do not interchange room and duct humidity devices.
INSTALLATION Dispersion: Selecting the dispersion assembly location DriSteem humidifiers operate with several types of dispersion assemblies for open spaces and for ducts and air handling units. Dispersion assemblies in ducts and air handling units must be positioned where the water vapor being discharged is carried off with the airstream and is absorbed before it can cause condensation or dripping.
INSTALLATION Dispersion: Interconnecting piping requirements The steam outlet on the humidifier is sized to the output of the humidifier. DO NOT use steam hose or interconnecting tubing with an inside diameter smaller than the humidifier steam outlet. See note at right. • See maximum steam carrying capacities in Table 37-1. Important: Reducing the inside diameter of the interconnecting piping will result in the internal humidifier system pressure exceeding the parameters for acceptable performance.
INSTALLATION Dispersion: Interconnecting piping requirements Table 37-1: Maximum steam carrying capacity and length of interconnecting steam hose or tubing Steam hose 1 Hose I.D.
INSTALLATION Dispersion: Steam outlet connections FIGURE 38-1: STEAM HOSE CONNECTION Steam hose Hose clamp Steam outlet connection (tubing) DC-1142 mc_022510_1600 FIGURE 38-2: TUBING CONNECTION USING HOSE CUFF WITH CLAMPS Tubing Hose clamps 6" long (152 mm) hose cuff Steam outlet connection (tubing) DC-1143 mc_022510_1602 38 VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
INSTALLATION Dispersion: Steam outlet connections FIGURE 39-1: FLANGE CONNECTION Support member Support tubing from above to prevent pressure on humidifier. Allow for thermal expansion.
INSTALLATION Dispersion: Drip tee installation Install a drip tee as shown in Figure 40-1 when: • Humidifier is mounted higher than the dispersion assembly, • Interconnecting hose or piping must go over an obstruction, or • Interconnecting piping runs are long. Important: Steam hose must be supported to prevent sagging or low spots.
INSTALLATION Dispersion: Single tube and multiple tube DISPERSION TUBE MOUNTING • Orient dispersion tube(s) so that tubelets (steam orifices) point up. • See Table 42-2 for dispersion tube pitch requirements. • When mounting the humidifier above the level of the dispersion tube(s), see drip tee installation in Figure 40-1.
INSTALLATION Dispersion: Single tube and multiple tube FIGURE 42-1: SINGLE TUBE DISPERSION WITHOUT CONDENSATE DRAIN Duct Single dispersion tube without condensate drain Steam hose, tubing or pipe. Insulate tubing and hard pipe to reduce steam loss. Do not insulate steam hose.
INSTALLATION Dispersion: Single tube and multiple tube FIGURE 43-1: SINGLE TUBE DISPERSION WITH CONDENSATE WASTED TO FLOOR DRAIN Duct Secure and seal escutcheon plates Steam hose or tubing. Insulate tubing to reduce steam loss. Do not insulate steam hose. Pitch (see Note 2 below) 3/8" (M10) mounting nut 90° long sweep or two 45° elbows 6" (152 mm) minimum Vaporstream humidifier Pitch tube toward drain 1/8"/ft (1%) ¼" (DN8) pipe thread ½" (DN15) O.D.
INSTALLATION Dispersion: Single tube and multiple tube FIGURE 44-1: SINGLE TUBE WITH CONDENSATE RETURNED TO HUMIDIFIER Secure and seal escutcheon plates Steam hose or tubing Duct Mounting nut, 3/8" (M10) Pitch* 90º long sweep or two 45° elbows ½" (13 mm) air vent 6" (152 mm) minimum 6" (152 mm) minimum ¼" pipe thread (DN8) 5" (127 mm) water seal Pitch tube toward drain 1/8"/ft (1%) ½" (DN15) O.D.
INSTALLATION Dispersion: Single tube and multiple tube FIGURE 45-1: MULTIPLE TUBE WITH CONDENSATE WASTED TO FLOOR DRAIN Multiple dispersion tubes with condensate drains Steam hose or tubing Duct Secure and seal escutcheon plates Mounting nut, 3/8" (M10) Pitch* 90° long sweep or two 45° elbows 6" (152 mm) Vaporstream humidifier Water seal 5" (127 mm) Pitch tube toward drain 1/8"/ft (1%) ¼" (DN8) pipe thread ½" (DN15) O.D.
INSTALLATION Dispersion: Rapid-sorb Read all dispersion instructions in this manual, and follow the installation instructions below: • Unpack shipment and verify receipt of all Rapid-sorb components with packing list. Report any shortages to DriSteem immediately. The components typically include the following: – Multiple dispersion tubes – Header – ¾" × 2" (19 mm × 51 mm) L-bracket Note: Dispersion tubes, header, and L-bracket are each tagged with the customer requested identification number.
INSTALLATION Dispersion: Rapid-sorb PITCH REQUIREMENTS • For Rapid-sorb with the header outside a horizontalairflow duct, consider the following: – 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. – 2" (DN50) dispersion tubes: The bracket can be mounted flush to the ductwork.
INSTALLATION Dispersion: Rapid-sorb FIGURE 48-1: RAPID-SORB IN A HORIZONTAL AIRFLOW WITH HEADER OUTSIDE DUCT Position L-bracket so that flange is upstream of dispersion tubes. This drawing shows the L-bracket positioned for airflow back to front.
INSTALLATION Dispersion: Rapid-sorb 5. Before tightening the L-bracket bolts to the dispersion tubes: • For 1½" (DN40) dispersion tubes: – Dispersion tube will rotate in slip coupling. Verify that dispersion tube orifices are directed perpendicular to airflow. Note: See Page 52 for steam supply and condensate drain line connection instructions. – Dispersion tube and slip coupling must be fully engaged on header stub for O-rings to provide a seal.
INSTALLATION Dispersion: Rapid-sorb FIGURE 50-1: RAPID-SORB IN A HORIZONTAL AIRFLOW WITH HEADER INSIDE THE DUCT Position L-bracket so that flange is upstream of dispersion tubes.
INSTALLATION Dispersion: Rapid-sorb 5. Mount the dispersion tubes on the header with the slip couplings or hose cuffs: • When installing slip couplings for 1½" (DN40) dispersion tubes, take care not to shear O-rings. Note: See Page 52 for steam supply and condensate drain line connection instructions. • Set slip coupling on header stub or dispersion tube so O-ring is resting on face of tubing. • Rotate slip coupling while pushing it onto the tubing. • O-rings are lubricated at factory.
INSTALLATION Dispersion: Rapid-sorb STEAM SUPPLY CONNECTIONS TO RAPID-SORB HEADER 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. If multiple humidifiers are supplying one Rapid-sorb, a multiple steam supply connector is needed. Typically, the multiple steam supply connector attaches to the Rapid-sorb header supply end with hose cuff and clamps: 1.
INSTALLATION Dispersion: SDU-I and SDU-E CHOOSING A LOCATION FOR SDU-I AND SDU-E SDU-I: Instant, internal absorption • When used with a Vaporstream, the SDU can be located a minimum of 18" (457 mm) above a Vaporstream humidifier, or remotely from the humidifier (see interconnecting piping requirements in Table 37-1 for maximum distance). • Allow 6" (152 mm) clearance on each side of SDU. MOUNTING SDU-I AND SDU-E SDU-I and SDU-E units can be mounted on a wall remotely from the Vaporstream humidifier.
INSTALLATION Dispersion: SDU-I and SDU-E FIGURE 54-1: SDU-I MECHANICAL DETAIL FIGURE 54-2: SDU-I FIELD WIRING Front view Side view Humidified air discharge grille 24.2" (615 mm) SDU-I cabinet with shroud removed 16.1" (409 mm) 18.6" (472 mm) VLC-OM-032 DC-1076 mc_052510_1700 10.9" (276 mm) 1½" (DN40) steam inlet Air intake grille 2.25" (57 mm) Control board in Vaporstream control cabinet FIGURE 54-3: SDU-E MECHANICAL DETAIL Front view Side view 24.2" (615 mm) 16.
INSTALLATION Dispersion: SDU-E MOUNTING SDU-E • The SDU-E unit requires an installed condensate drain line and water seal (provided by installer). See figure below and instructions at right. WARNING • Spread dimensions greater than 3' (1 m) may require additional clearance (see Table 56-1). Hazards of standing water in SDU-E If standing water is allowed to accumulate in the dispersion box, it can: FIGURE 55-1: SDU-E DRAIN LINE PIPING • Cause bacteria and mold growth, which can cause illness.
INSTALLATION Dispersion: SDU-E SDU-E RISE, SPREAD, AND THROW FIGURE 56-1: SDU-E RISE, SPREAD, AND THROW As steam is discharged from the SDU-E, it quickly cools and turns to a visible fog that is lighter than air. As this fog is carried away from the SDU-E by the airstream, it tends to rise toward the ceiling. If this fog contacts solid surfaces (columns, beams, ceiling, pipes, etc.) before it disappears, it could collect and drip as water.
INSTALLATION Dispersion: Area-type fan Table 58-1 lists the Area-type steam minimum rise, spread, and throw nonwetting dimensions. Surfaces or objects located within this minimum dimension can cause condensation and dripping. The greater the space relative humidity, the higher and farther the discharged steam will carry and rise in the space until becoming absorbed. The Area-type fan and brackets are shipped separately and field-installed on the humidifier.
INSTALLATION Dispersion: Area-type fan Table 58-1: Area-type (evaporative steam) minimum distances for rise, spread, and throw* 60 °F (16 °C) Maximum steam capacity 30% RH Rise 40% RH Spread Throw Rise Spread 50% RH Throw Rise Spread Throw lbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m 50 20 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.5 0.8 6.0 1.8 75 34 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 4.0 1.
OPERATION Start-up procedure After the system is installed and connected properly: CAUTION 1. Verify that the Vaporstream humidifier, controls, piping, electrical connections, steam supply, and dispersion unit(s) are installed according to the following: Damage from dry startup In the event the humidifier tank does not contain water and the heaters are energized, turn main power off. Operation of the heaters without water will cause damage to the humidifier.
OPERATION Start-up checklist If an item in the Start-up checklist below does not apply to your system, skip to the next item and continue the process. ☐ Read this manual and all other information that was provided with your humidifier. ☐ Verify that all field wiring is done according to the instructions in this manual and in the humidifier wiring diagram. ☐ Confirm that the input signal is consistent with the Vapor-logic controller's expected input signal.
MAINTENANCE Tap/softened water: Water quality and skim duration The best way to determine how often your humidifier needs maintenance is to remove the tank cover and inspect it for mineral deposits after three months of duty. Hours of operation and duty cycle will determine your maintenance schedule, as will water quality.
MAINTENANCE Tap/softened water: Cool-down procedure Before performing any maintenance, allow the tank to cool down. Fresh makeup water is used to speed up cooling. Do not close the manual water supply before cooling down the humidifier; otherwise the tank could stay hot for several hours. • Insulated and uninsulated tanks will have hot surfaces.
MAINTENANCE Tap/softened water: Inspection and maintenance INSPECTION AND MAINTENANCE FIGURE 63-1: PROBE TOOL 1. Annually (also recommended when maintenance is performed) • All safety devices in the control circuit should be cycled on and off to verify they are functioning. These include: – High limit switch – Airflow proving switch – Low water level probe. Pull out probe plug; fill valve should energize. • Inspect tank and gaskets for leaks.
MAINTENANCE Tap/softened water: Inspection and maintenance • Cleaning the skim/overflow port – Water should drain from the skimmer drain pipe after each fill cycle. This should be verified visually by a weekly inspection. – Loosen deposits in and around the skimmer/overflow port with a long tool such as a screwdriver. – If flow through the water seal/P-trap is diminished due to mineral accumulation: – Remove the water seal piping from the humidifier and flush out.
MAINTENANCE RO/DI water option: Cool-down procedure Before performing any maintenance, allow the tank to cool down. Note: Fresh make-up water is used to speed up cooling. Do not close the manual water supply before cooling down the humidifier; otherwise the tank could stay hot for several hours. • Insulated and uninsulated tanks will have hot surfaces.
MAINTENANCE RO/DI water option: Inspection and maintenance INSPECTION AND MAINTENANCE Note: 1. Annually (also recommended when maintenance is performed) When replacing the cleanout plate, tighten nuts to a torque measurement of 40 in-lb (4.5 N-m). • All safety devices in the control circuit should be cycled on and off to verify they are functioning.
MAINTENANCE Outdoor Enclosure Access to the humidifier side cleanout plate is through the Outdoor Enclosure electrical service door. • Clean vent screens annually. • Check for proper operation of strip heaters and ventilation fans annually. • Refer to instructions for complete humidifier maintenance, beginning on Page 61.
REPLACEMENT PARTS Humidifier FIGURE 68-1: VAPORSTREAM TANK REPLACEMENT PARTS VLC-OM-033 Note: Components may be in a different location or have a different orientation than shown in drawing.
REPLACEMENT PARTS Humidifier Table 69-1: Tank replacement parts list No. Description Models used Part no. 1 Tank All * 2 Cover All * 3 Cover, heater louvered All 167745- * 4 Pan-head mach.
REPLACEMENT PARTS Control cabinet FIGURE 70-1: NORTH AMERICAN CONTROL CABINET REPLACEMENT PARTS VLC-OM-035a Note: Components may be in a different location or have a different orientation than shown in drawing. FIGURE 70-2: EUROPEAN CONTROL CABINET REPLACEMENT PARTS OM-7659b Note: Components may be in a different location or have a different orientation than shown in drawing.
REPLACEMENT PARTS Control cabinet Table 71-1: North American control cabinet replacement parts No. Description Models that use this part Table 71-2: European control cabinet replacement parts Part no. No. Description Part no.
REPLACEMENT PARTS SDU-I FIGURE 72-1: SDU-I REPLACEMENT PARTS OM-1504 mc_062810_1111 Table 72-1: SDU-I replacement parts No. Description Qty. Part number 1 Shroud 1 330001-002 2 Blower, SDU external assembly 1 * 3 Switch, airflow 1 406190 4 Screw, 8-32 × ½" Phillips, black 6 700170-007 5 Nut retainer, 8-32 6 409593-001 6 Tubelet, 0.375" × 0.375" molded 44 310280-006 * This is an assembly of multiple parts.
REPLACEMENT PARTS SDU-E FIGURE 73-1: SDU-E REPLACEMENT PARTS OM-1503 mc_062810_1110 Table 73-1: SDU-E replacement parts No. Description Qty. Part number 1 Shroud 1 330002-001 2 Blower, SDU external assembly 1 * 3 Switch, airflow 1 406190 4 Screw, 8-32 × ½" Phillips, black 4 700170-007 5 Nut retainer, 8-32 4 409593-001 Dispersion chamber for SDU with 1½" outlet 1 160445-003 Dispersion chamber for SDU with 2" outlet 1 160445-004 6 * This is an assembly of multiple parts.
REPLACEMENT PARTS Outdoor Enclosure FIGURE 74-1: OUTDOOR ENCLOSURE REPLACEMENT PARTS 5 6 7 1 4 3 2 OM-953 4 Table 74-1: Outdoor Enclosure replacement parts Number in drawing Description Part number 1 500W strip heater 405800-052 2 1100W strip heater 405800-053 3 Cooling fan 405800-068 4 Gasket, door or roof 308005-010* 5 Stat, high limit 405800-065 6 Stat, low limit 405800-066 7 Stat, heater 405800-066 8 Stat, fan 405800-067 * Specify quantity in feet 74 VAPORSTREAM INST
VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL 75
WARRANTY Expect quality from the industry leader Two-year Limited Warranty For more than 45 years, DriSteem has been leading the industry with creative and reliable humidification solutions. Our focus on quality is evident in the construction of the Vaporstream humidifier, which features cleanable, stainless steel construction. DriSteem also leads the industry with a Two-year Limited Warranty and optional extended warranty.
