DriSteem XT Series Installation, Operation And Maintenance Manual
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DriSteem XT Series Installation, Operation And Maintenance Manual

Electrode steam humidifiers
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XT SERIES
Elec tr od e S team Hu mid ifi er s
Installation, Operation,
and Maintenance Manual

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Questions and answers

Darrin
January 16, 2025

How to clear a “Inter lock open” message?

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1 comments:
Mr. Anderson
February 3, 2025

To clear an "Interlock open" message on a DriSteem XT Series unit, ensure the following:

1. Door Interlock Safety Switch: Confirm that the door interlock safety switch is securely closed.
2. High Limit Humidistat: Verify that the high limit humidistat input is closed or that the variable air volume (VAV) control system's high limit transmitter is properly connected.
3. Airflow Switch: Ensure the airflow switch is closed and functional.
4. Water Level: Check that there is sufficient water in the steam cylinder.
5. Call for Humidity: Make sure there is an active call for humidity.

After these checks, the "Interlock open" message should clear if all conditions are met.

This answer is automatically generated

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Summary of Contents for DriSteem XT Series

  • Page 1 READ AND SAVE THESE INSTRUCTIONS XT SERIES Elec tr od e S team Hu mid ifi er s Installation, Operation, and Maintenance Manual...
  • Page 2 Contact with energized circuits can cause property damage, severe personal injury, or death as a result of electrical shock or fi re. Do not remove cabinet doors until electrical power is disconnected. Follow the shutdown procedure on Page 49 before performing service or maintenance procedures on any part of the system. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 3 Follow steam piping recommendations Controlling condensate fl ow and collection in an XT Series humidifi er system is critical to maximize performance. Failure to follow the steam piping recommendations in this manual can cause system pressure fl uctuations and increase cylinder pressure, steam velocity, and condensate noise.

  • Page 4: Table Of Contents

    Principle of operation ........45 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 5 WARRANTY ............. . XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 6: Product Overview

    Product overview PRODUCT OVERVIEW DriSteem XT Series electrode steam humidifi ers use heat caused by electrical Download DriSteem literature resistance in their fi ll water to boil the fi ll water into humidifi cation steam. DriSteem product manuals can be...
  • Page 7 The harder the water, the more frequent the need for a new cylinder. 6.5 to 8.5 Softened water may be used in the XT series electrode humidifi er. However, Silica < 15 ppm softened water ions stay in solution to much higher concentrations than Demineralized, deionized, and reverse- hard water ions.

  • Page 8: Capacities, Line Currents, And Fusing

    SPECIFICATIONS Capacities, line currents, and fusing Table 4-1: Line currents and recommended fusing for XT Series humidifiers Model Nominal steam capacity Phase Volts Maximum line current (amps) Recommended fusing (amps) lbs/hr kg/h 10.0 16.5 25.0 33.3 41.7 47.8 2 x 43...

  • Page 9: Dimensional Drawings

    * Fill cup extension (Figure 5-1) is required for the following: Drain outlets - All XT Series humidifi ers using Ultra-sorb or Rapid-sorb - When developed length of steam tubing is more than 20' (6 m) and duct static pressure exceeds 2" wc (498 Pa) 21.0 (533)

  • Page 10: Dimensions And Weights

    SPECIFICATIONS Dimensions and weights Table 6-1: XT Series humidifier dimensions by model number Model XTP Dimension Description 002, 003, 006 010, 017 025, 033, 042, 048 050, 067, 083, 096 inches inches inches inches Cabinet width 14.6 17.7 19.9 39.6...

  • Page 11: Dispersion Options

    Single dispersion tube OM-7669 Notes: • Models XTP 010 and larger require condensate drain. See Page 32. • XT steam blowers (SDU) shipped with fuses to be installed in connected XT series humidifi ers. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 12: Selecting A Location

    Install the humidifi er on an exterior wall only if the wall is properly insulated. DISPERSION CONTROL DEVICES See page 20 for recommended installation locations for the dispersion assembly and associated control devices. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 13: Mounting

    INSTALLATION Mounting FIGURE 9-1: XT SERIES HUMIDIFIER MOUNTING KEYHOLE LOCATIONS Models XTP 002 through 048 Models XTP 050 through 096 0.390" x 0.719" (9.9 x 18.3 mm) dia. keyholes 0.390" x 0.719" (9.9 x 18.3 mm) dia. keyholes OM-7969 OM-7970 0.390"...
  • Page 14 (for the lag bolts), and other board at bottom of cabinet. 2. Predrill pilot holes in spanner boards, and secure humidifier to spanner boards with lag bolts. Note: Use the appropriate mounting methods and mounting hardware for other wall types. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 15: Fill Cup Extension Kit

    A fi ll cup extension (Figure 11-1) is required for the following: Fill cup • All XT Series humidifi ers using Ultra-sorb or Rapid-sorb (see inset below) • When developed length of steam tubing is more than 20' (6 m) and duct static pressure exceeds 2"...

  • Page 16: Steam Cylinder

    OM-7972-XT CAUTION If cylinder plugs become loose, damage to the humidifi er may occur. Obtain replacement plugs from DriSteem. See “Replacement parts” on Pages 57 and 59 for part numbers. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 17: Piping

    Alternately, route drain line away from beneath humidifi er to open drain. See Figure 13-1. AUTOMATIC DRAIN WATER TEMPERING XT Series humidifi ers are shipped with drain water tempering set to ON for North America (OFF for Europe). To activate automatic drain water tempering see the Vapor-logic Installation and Operation Manual.

  • Page 18: Field Piping Overview

    INSTALLATION Piping: Field piping overview FIGURE 14-1: XT SERIES HUMIDIFIER FIELD PIPING OVERVIEW Steam hose or tubing. DriSteem 1" (25 mm) air gap required to recommends tubing for runs longer than 10' (3 m). See Table 26-1 for maximum isolate unit drain piping from sanitary drain piping.

  • Page 19: Xt Steam Blowers

    INSTALLATION Piping: XT steam blowers FIGURE 15-1: PIPING FROM XT SERIES HUMIDIFIER TO REMOTE XT STEAM BLOWER Notes: • Maximum recommended distance between humidifi er and XT steam blower is 10’ (3 m). • Models XTP 042 through 096 are not intended for use with a steam blower.
  • Page 20 INSTALLATION Piping: XT steam blowers FIGURE 16-1: PIPING FROM XT SERIES HUMIDIFIER TO TOP-MOUNTED XT STEAM BLOWER Hose clamp (provided) Steam hose (provided) Hose clamp (provided) OM-7976 Notes: • Maximum recommended distance between humidifi er and XT steam blower is 10’ (3 m).

  • Page 21: Humidifier Wiring

    • Do not use aluminum wire. shock and/or fi re. CONDUIT KNOCKOUTS Conduit and control wiring knockouts are provided on the XT Series humidifi er cabinet. See Figure 5-1. FIGURE 17-1: FIELD WIRING CONTROL COMPONENT PLACEMENT...
  • Page 22 UNITS WITH STEAM BLOWER humidity, high limit, and airflow controls Steam blowers (SDUs) receive power for operation from the XT series using multicolored shielded/screened humidifi er. Install 2 fuses in the XT unit to provide power to the steam blower.

  • Page 23: Sensor Placement

    Note: DriSteem recommends that you do not interchange room and duct • Size of humidification system relative to humidity devices. Room humidity devices are calibrated with zero or little load airfl...

  • Page 24: Dispersion

    INSTALLATION Dispersion: Selecting the dispersion assembly location DriSteem humidifi ers 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.
  • Page 25 (25 mm) air gap between the condensate drain piping and the drain. Locate the gap only in spaces with adequate temperature and air movement to absorb fl ash steam; otherwise, condensation may form on nearby surfaces. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 26: Returning Condensate To Steam Cylinder

    More than 20 lbs/hr (9.1 kg/h) or more of steam production, or More than 10' (3 m) of steam hose between humidifi er and dispersion More than 20' (6 m) of tubing between humidifi er and dispersion XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 27: Steam Outlet Connections

    CAUTION Connector kit location Install the connector for increasing from 1” to 1½” (DN25 to DN40) hose or tube immediately above the XT Series humidifi er as shown above. Failure to install the connector kit immediately above the humidifi er will cause system pressure fl uctuations and increase cylinder pressure, steam velocity, and condensate noise.

  • Page 28: Steam Outlet Connections With Hose

    2" (DN50) steam hose. Each cylinder to connect to dispersion separately. For OM-7980-XT distance greater than 10', use hard pipe. Stainless steel Y connector* Hose clamp* 1½" (DN40) steam hose*, 12" (305 mm) long OM-7981 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 29 The diameter and pitch of the tube connector must match the inlet diameter and pitch of the dispersion unit. • Always run separate steam hose/tubing from each cylinder to the connection of the dispersion device. Only connect a maximum of two cylinders to any single dispersion unit. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 30 Notes: • Values in this table are based on XT Series humidifi ers, and condensate fl owing in direction of steam (steam hose or tubing pitched toward dispersion device). Use DriSteem steam hose for best results. Field-supplied hose may have shorter life and may cause foaming in cylinder, resulting in condensate discharge at dispersion assembly.
  • Page 31 2"/ft (15%) toward the dispersion device. Steam hose must be supported for its full length • Use DriSteem steam hose. Other manufacturers of steam hose may use to prevent sagging or low spots. unacceptable release agents or material mixes that can affect humidifi er system performance adversely.

  • Page 32: Single Dispersion Tube

    • Ground metal steam tubing. See “Grounding steam tubing” at right. • 90° elbows are not recommended. DriSteem recommends 90° long sweeps. Two 45° elbows, 1' (0.3 m) apart may also be used. Grounding steam tubing •...
  • Page 33 Refer to governing codes for drain pipe size and maximum discharge water temperature. • Support steam hose for its full length so there are no sags or low spots. • Dashed lines indicate provided by installer. mc_062810_0645-XT XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 34 fl ow. Pitch the steam supply line back toward the humidifi er (see cause system pressure fl uctuations Figure 31-1). and increase cylinder pressure, steam velocity, and condensate noise. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 35: Drip Tee Installation

    * Pitch steam hose or tubing toward humidifi er: Dimension A: 3.25" (82.5 mm) for 1½" tubes • 2"/ft (15%) when using steam hose • ½"/ft (5%) when using 1½" tubing • ¼"/ft (2%) when using 2" tubing XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 36: Connecting To Humidifier With Tubing

    • 2"/ft (15%) when using steam hose Dispersion tube Condensate drain • 1/8"/ft (1%) when using tubing Note: Dashed lines indicate provided by installer. OM-351-1 Dimension A: 3.25" (82.5 mm) for 1½" tubes XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 37: Rapid-Sorb

    • Unpack shipment and verify receipt of all Rapid-sorb components ® Dispersion assembly and steam hose or with packing list. Report any shortages to DriSteem immediately. The tubing can contain steam, and surfaces components typically include the following: can be hot. Discharged steam is not –...
  • Page 38 See DriCalc for vertical airfl ow capacities. If face height is pages for pitch requirements. <22" (559 mm), tube quantity per panel may need to increase to compensate for reduced capacity of short tubes. Consult DriSteem or see DriCalc sizing and selection software for the correct calculation. Table 34-2:...
  • Page 39 Dispersion assembly and steam hose or tubing can contain steam, and surfaces can be hot. Discharged steam is not visible. Contact with hot surfaces or air into which steam has been discharged can cause severe personal injury. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 40 The installer should not attempt to drain condensate back to the cylinder. When a vertical riser is required in the steam tubing, a drip tee is required in order to eliminate a condensate collection point that will restrict steam fl ow. FIGURE 36-1: DUAL-CYLINDER XT SERIES HUMIDIFIER CONNECTED TO RAPID-SORB OR ULTRA-SORB WITH RISER DRIPS IN STEAM SUPPLY LINES...
  • Page 41 • O-rings are lubricated at factory. If additional lubrication is necessary, 3. Continue with Step 4 at right. DO NOT use petroleum-based lubricant. 5. Allow the dispersion tubes to rest against the bottom of the duct. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 42 8. Verify that all fasteners are secure: • L-bracket to duct • Dispersion tubes to L-bracket • Hose clamps on 2" (DN50) tubes • Header support bracket fastener 9. Secure and seal the header escutcheon plate around the header. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 43 • Locate air gap only in spaces with adequate temperature and air movement to absorb fl ash steam, or condensing on nearby surfaces may occur. All drain lines must be installed and sized according to governing codes. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 44: Xt Steam Blowers

    To avoid steam impingement on surrounding areas, observe the minimum non-wetting distances in the table. XT steam blowers are fi eld wired to the XT Series humidifi er blower terminals. A wiring diagram is included with the XT steam blower.
  • Page 45 — — 042 through 096 * XT steam blowers are sold as kits to match the associated XT Series humidifi er. The number of XT steam blowers per kit are shown in this table. Table 41-3: XT steam blower specifications...
  • Page 46 One XT Series humidifi er with two XT steam blowers Condensate returned to Condensate steam cylinder fi ll hose returned to open drain (condensate can also be returned to humidifi er fi ll cup) OM-7670 OM-7698 OM-7699 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 47 The steam blower has a base plate for remote-mounted steam blower applications. The base plate isolates the hot steam box from contact. After the electrical connections are made, assemble the base plate onto the bottom of the steam blower with the screws provided. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 48 XT Series humidifi er cabinet PIPING CONDENSATE TO HUMIDIFIER FILL CUP 1. Remove fill cup cap from XT Series humidifier, and drill a 1/2" (13 mm) Drill hole here for XT steam blower hole in fill cup cap for SDU-006E and SDU-017E condensate hose as condensate hose shown in Figure 44-1.

  • Page 49: Principle Of Operation

    Since water conductivity and water level both correlate to steam output, DriSteem’s algorithm monitors conductivity and manages drain and fi ll cycles to optimize humidifi er performance and provide proper steam output.
  • Page 50 Principle of operation FIGURE 46-1: XT SERIES HUMIDIFIER PRINCIPLE OF OPERATION SAFETY FUNCTIONS XT Series humidifi ers are protected against running dry — current does not fl ow if the electrodes in the steam cylinder are not submerged in water.

  • Page 51: Operation

    ☐ With suffi cient water in steam cylinder, airfl ow switch closed, high limit humidistat closed, door safety interlock switch closed, and a call for humidity, verify that heat outputs are activated. ☐ If you experience diffi culties, see “Troubleshooting” on Page 52. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 52: Model Xtp

    • Control input signals and functions • Safety features • Alarm screens and fault messages This manual ships with Model XTP humidifi ers and is available at our website: www.dristeem.com XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 53: Shutdown And Cool-Down Procedures

    Messages Log during and shortly after start-up, the switches in OFF position. message can be cleared and will stop repeating after a Note: Two-cylinder XT Series humidifi ers have two power few drain and fi ll cycles. supply connections.

  • Page 54: Replacing Steam Cylinder

    3. Carefully pull the electrode plugs straight up off the cylinder to ensure no damage to the plug boot occurs. CAUTION 4. Inspect cylinder plugs. Obtain replacement plugs from DriSteem if If cylinder plugs become loose, deterioration, corrosion or loose fit occur.

  • Page 55: Drain Valve

    FIGURE 51-2: DRAIN VALVE BODY Drain valve body (G) Plunger (F) Spring (E) Drain valve coil (C) Actuator (D) Nut (B) Torque to 18 in-lb (2.0 N·m) Cap (A) Wires to Molex plug OM-7631 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 56: Troubleshooting

    3. If Table 54-1 and the Test mode procedure do not help you solve the issue, call DriSteem (see inset at right) with the following information available: • Humidifi er model number and serial number (see nameplate on side of the humidifi...
  • Page 57 Check valve function using Test mode. Debris in drain valve blocking Remove cylinder and clean debris from drain valve. Humidifi er will outlet port not drain. Malfunctioning drain valve Check valve function using Test mode. Continued XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 58 fi ll water Add add 1/4 to 1/2 tab sodium bicarbonate (i.e., Alka Seltzer) to water in cylinder conductivity is increase water conductivity. Consult DriSteem for further advice. 125 to 1250 μS/cm. Control setting too low Adjust control to higher setting.
  • Page 59 • Issue description Example: water leaking, low humidity, high humidity, etc. _______________________________ • System changes _______________________________ Example: Pressure, new service, new controller, relocation, change in _______________________________ maintenance, etc. Issue description _______________________________ _______________________________ _______________________________ XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 60: Replacement Parts

    MAINTENANCE Replacement parts FIGURE 56-1: MODELS XTP 002 THROUGH 048 REPLACEMENT PARTS OM-7985 Subpanel Euro subpanel SDU option OM-7703 OM-8002 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 61 Fuse 40A 480V AG (XTP 042, 480 volt only) 406720-040 Fuse 50A 480V AG (XTP 048, 480 volt only) 406720-050 Switch auxiliary GE ECLA211S 407001-024 See cylinder Part No. on your XT Series humidifi er. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 62 MAINTENANCE Replacement parts FIGURE 58-1: MODELS XTP 050 THROUGH 096 REPLACEMENT PARTS OM-7704 Subpanel Euro Subpanel OM-7705 OM-8003 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 63 Fuse 40A 480V AG (XTP 083, 480 volt only) 406720-040 Fuse 50A 480V AG (XTP 096, 480 volt only) 406720-050 Switch auxiliary GE ECLA211S 407001-024 See cylinder Part No. on your XT Series humidifi er. XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 64 FIGURE 60-1: SDU-006E AND SDU-017E STEAM BLOWERS OM-7700 Table 60-1: SDU-006E and SDU-017E steam blowers Item Description Part No. Fan, SDU-006E, 120V 407109-002 Fan, SDU-017E, 230V 306377 Fan, SDU-006E, 230V 407109-102 Fan, SDU-017E, 120V 306376 XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 65: Accessories

    Kit, tube Y connector; Model XTP 025 (see Figure 23-1) • 1 Y connector, 1.5" x 1.5" x 1.5"(DN40 x DN40 x DN40) • 1 steam hose, 1.5" (DN40), 12" (305 mm) long 191070-102 • 2 hose clamps XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 66 Notes XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...
  • Page 67 Notes XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL...

  • Page 68: Warranty

    DriSteem, or if the products have been visit our Web site: www.dristeem.com modifi ed or altered without the written consent of DriSteem, or if such products have been subject to accident, misuse, mishandling, tampering, negligence or improper maintenance. Any warranty claim must be submitted to DriSteem in writing within the stated warranty period.

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