DriSteem XT-10 Installation, Operation And Maintenance Manual
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DriSteem XT-10 Installation, Operation And Maintenance Manual

Xt series electrode steam humidifier
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E l e c t r od e S t e a m Hu m i d i f i e r
Installation, Operation,
and Maintenance Manual

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  • Page 1 XT Series E l e c t r od e S t e a m Hu m i d i f i e r Installation, Operation, and Maintenance Manual...
  • Page 2 S a f e t y p r e c a u t i o n s ATTENTION INSTALLER W A R N I N G ! Read this manual before installing humidifier. This product must be installed by qualified HVAC and electrical contractors and in compliance with local, state, and federal codes.
  • Page 3 Ta b l e o f c o n t e n t s Installation Specifications ......... . . 2 Dimensions .

  • Page 4: Specifications

    Model steam capacity weight weight number Single-phase Three-phase lbs/hr kg/h 208V 240V 277V 480V 600V 208V 240V 480V 600V XT-10 16.2 14.0 12.2 27.6 12.5 29.8 13.5 XT-20 32.2* 27.9* 24.2 14.0 11.2 18.6 16.1 29.8 13.5 38.6 17.5 XT-30 10.1...

  • Page 5: Dimensions

    I n s t a l l a t i o n : D i m e n s i o n s Figure 3-1: Dimensions Models XT-10, XT-20, XT-30, XT-50, XT-75, XT-100 Models XT-150, XT-200 Top view Top view 4.5"...

  • Page 6: Choosing A Location

    C h o o s i n g a l o c a t i o n I m p o r t a n t : Choosing a location for the humidifier When selecting a location for the humidifier, consider the following: Install humidifier only in locations that meet the following temperature and relative •...

  • Page 7: Mounting The Humidifier

    W A R N I N G ! Mounting keyhole locations by model number Mount humidifier per the instructions in this Models XT-10, XT-20, XT-30, XT-50, XT-75, XT-100 Models XT-150, XT-200 manual and to a structurally stable surface. Improper mounting of humidifier may cause the humidifier to fall off the wall resulting in...
  • Page 8 M o u n t i n g t h e h u m i d i f i e r ( c o n t i n u e d ) Prepare humidifier for mounting W A R N I N G ! Unpack unit from shipping carton and remove steam cylinder door.

  • Page 9: Fill Cup Extension Installation

    F i l l c u p e x t e n s i o n i n s t a l l a t i o n Install fill cup extension kit (if applicable) Figure 7-1: Fill cup extension installation A fill cup extension kit is required with all Rapid-sorb and Ultra-sorb dispersion assemblies or when the maximum developed length of piping/hose from humidifier to dispersion assembly/...

  • Page 10: Supply Water And Drain Piping

    S u p p l y w a t e r a n d d r a i n p i p i n g Figure 8-1: Field piping overview for models XT-10, XT-20, XT-30, XT-50, XT-75, and XT-100 Steam vapor hose; may also use tubing or pipe.
  • Page 11 S u p p l y w a t e r a n d d r a i n p i p i n g ( c o n t i n u e d ) Figure 9-1: Field piping overview for Models XT-150 and XT-200 Steam vapor hose;...
  • Page 12 S u p p l y w a t e r a n d d r a i n p i p i n g ( c o n t i n u e d ) Humidifier drain piping Figure 10-1: Drain piping detail Drain piping must be code-approved copper or steel rated for 212 °F (100 °C) minimum.

  • Page 13: Field Wiring

    F i e l d w i r i n g Humidifier field wiring W A R N I N G ! All wiring must be in accordance with all governing codes and Only qualified electrical personnel should with the unit wiring diagram. The unit wiring diagram is inside the perform field wiring installation procedures.
  • Page 14 F i e l d w i r i n g ( c o n t i n u e d ) Proper wiring prevents electrical noise. Below are field wiring connection instructions: Electrical noise can produce undesirable • Connect to line power. effects on electronic control circuits, which Refer to the wiring diagram or the data plate on the outside of the affects controllability.

  • Page 15: Humidistat And Transmitter Placement

    H u m i d i s t a t a n d t r a n s m i t t e r p l a c e m e n t Humidistat and transmitter locations are critical Humidistat or transmitter location has a significant impact on humidifier performance.

  • Page 16: Wiring Diagrams

    W i r i n g d i a g r a m s Figure 14-1: Control wiring diagrams for humidity transmitter external connections to XT Series humidifiers Page 14 • DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual...
  • Page 17 W i r i n g d i a g r a m s ( c o n t i n u e d ) Figure 15-1: Control wiring diagrams for humidistat external connections to XT Series humidifiers DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual • Page 15...
  • Page 18 W i r i n g d i a g r a m s ( c o n t i n u e d ) Figure 16-1: Control wiring diagrams for signal by others external connections to XT Series humidifiers Page 16 •...
  • Page 19 W i r i n g d i a g r a m s ( c o n t i n u e d ) Figure 17-1: Wiring diagram for sequenced XT Series humidifiers with a modulating duct humidistat DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual • Page 17...
  • Page 20 W i r i n g d i a g r a m s ( c o n t i n u e d ) Figure 18-1: Wiring diagram for sequenced XT Series humidifiers with a modulating room humidistat Page 18 • DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual...
  • Page 21 W i r i n g d i a g r a m s ( c o n t i n u e d ) Figure 19-1: Wiring diagram for sequenced XT Series humidifiers with a modulating 0-10 VDC signal by others DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual •...

  • Page 22: Dispersion

    Included in Dri-calc: • A comprehensive library of installation...

  • Page 23: Interconnecting Piping Requirements

    THE INSIDE DIAMETER OF THE INTERCONNECTING duct dispersion. Hose clamps shipped, by model: – XT-10 and XT-20 (except XT-20 208/240/1-Ph): PIPING WILL RESULT IN THE INTERNAL HUMIDIFIER ¾" worm-drive clamp and D29 bolt clamp SYSTEM PRESSURE EXCEEDING THE PARAMETERS FOR –...
  • Page 24 D i s p e r s i o n : I n t e r c o n n e c t i n g p i p i n g r e q u i r e m e n t s ( c o n t i n u e d ) Connecting humidifier to dispersion assembly with tubing or pipe (continued) •...
  • Page 25 D i s p e r s i o n : I n t e r c o n n e c t i n g p i p i n g r e q u i r e m e n t s ( c o n t i n u e d ) Figure 23-1: Piping from steam cylinders to ducted dispersion assembly Pitch 2"/ft (15% min.)

  • Page 26: Drip Tee Installation

    D i s p e r s i o n : D r i p t e e i n s t a l l a t i o n Install a drip tee as shown below when the humidifier is mounted higher than the dispersion assembly, when interconnecting hose or piping needs to go over an obstruction, or when interconnecting piping runs are long.

  • Page 27: Single Tube And Multiple Tube

    D i s p e r s i o n : S i n g l e Tu b e a n d M u l t i p l e Tu b e IMPORTANT: Installation • See the following pages for detailed drawings and notes for Failure to follow the recommendations in installing Single Tube and Multiple Tube dispersion assemblies.
  • Page 28 D i s p e r s i o n : S i n g l e Tu b e a n d M u l t i p l e Tu b e ( c o n t i n u e d ) Figure 26-1: Single Tube dispersion without condensate drain Duct...
  • Page 29 D i s p e r s i o n : S i n g l e Tu b e a n d M u l t i p l e Tu b e ( c o n t i n u e d ) Figure 27-1: Single Tube dispersion with condensate wasted to floor drain Maximum capacity of dispersion tube:...
  • Page 30 D i s p e r s i o n : S i n g l e Tu b e a n d M u l t i p l e Tu b e ( c o n t i n u e d ) Figure 28-1: Multiple Tube with condensate wasted to floor drain Duct...

  • Page 31: Rapid-Sorb

    D i s p e r s i o n : R a p i d - s o r b General Rapid-sorb installation instructions IMPORTANT: Failure to follow the recommendations in • Before you begin installation, read all dispersion instructions in this section can result in excessive back this manual.
  • Page 32 D i s p e r s i o n : R a p i d - s o r b ( c o n t i n u e d ) Rapid-sorb pitch requirements • When installing Rapid-sorb with the header outside a horizontal airflow duct, consider the following pitch issues: –...
  • Page 33 D i s p e r s i o n : R a p i d - s o r b ( c o n t i n u e d ) Figure 31-1: Rapid-sorb installed in a horizontal airflow with header outside the duct Position L-bracket so that flange is upstream of dispersion tubes.
  • Page 34 D i s p e r s i o n : R a p i d - s o r b ( c o n t i n u e d ) Assembly and installation instructions for a Rapid-sorb installed with header outside the duct (continued) L-bracket to the end of the dispersion tubes with the provided bolt, lock washer, and flat washer.
  • Page 35 D i s p e r s i o n : R a p i d - s o r b ( c o n t i n u e d ) Figure 33-1: Rapid-sorb installed in a horizontal airflow with header inside the duct Position L-bracket so that flange is upstream of dispersion tubes.
  • Page 36 D i s p e r s i o n : R a p i d - s o r b ( c o n t i n u e d ) Assembly and installation instructions for a Rapid-sorb installed with header inside the duct (continued) •...
  • Page 37 D i s p e r s i o n : R a p i d - s o r b ( c o n t i n u e d ) Steam supply connections to the Rapid-sorb header 1. Connect the steam supply interconnecting piping from the humidifier to the Rapid-sorb.

  • Page 38: Xt Steam Blower

    XTSB-50 model units/kit units/kit There are two XTSB models: XTSB-20, for capacities up to 20 lbs/hr XT-10 — (9.1 kg/hr), and XTSB-50, for capacities up to 50 lbs/hr (22.7 kg/hr). XT-20** — XT Series humidifiers can be configured to operate with one or more XT Steam Blowers.

  • Page 39: Operation

    50% RH @ 70 ºF (21 ºC) 60% RH @ 70 ºF (21 ºC) steam capacity Model Rise Spread Throw Rise Spread Throw Rise Spread Throw lbs/hr kg/h XT-10 XT-20 XT-30 13.6 XT-50 22.7 10.0 XT-75 34.0 10.0 XT-100 45.4 10.0 XT-150 68.0 10.0 XT-200 90.7...

  • Page 40: Operation

    D i s p e r s i o n : X T S t e a m B l o w e r s ( c o n t i n u e d ) Figure 38-1: Table 38-1: XT Steam Blower dimensions XT Steam Blower dimensions XTSB-20...

  • Page 41: Operation

    D i s p e r s i o n : X T S t e a m B l o w e r s ( c o n t i n u e d ) To determine steam blower mounting clearance dimensions, see Table 37-1 on Page 37 to determine minimum rise, spread, and throw non-wetting distances for your application.

  • Page 42: Operation

    D i s p e r s i o n : X T S t e a m B l o w e r s ( c o n t i n u e d ) Figure 40-1: Piping from steam cylinders to XT Steam Blowers XT Steam Blower Plastic tie Pitch 2"/ft (15%) min.

  • Page 43: Operation

    D i s p e r s i o n : X T S t e a m B l o w e r s ( c o n t i n u e d ) Figure 41-1: Piping from steam cylinders to XT Steam Blowers XT Steam Blower Plastic tie 1-3/8"...

  • Page 44: Operation

    D i s p e r s i o n : X T S t e a m B l o w e r s ( c o n t i n u e d ) Condensate drain connection to XT Steam Blower Steam outlet Figure 42-1: XT Steam Blower drain line...

  • Page 45: Operation

    D i s p e r s i o n : X T S t e a m B l o w e r s ( c o n t i n u e d ) Wiring the XT Steam Blower Power is provided to the XT Steam Blower from the humidifier blower terminals.

  • Page 46: Principle Of Operation

    O p e r a t i o n Figure 44-1: XT Series principle of operation Steam travels through vapor hose, tubing, or pipe to the dispersion assembly. Fill cup Steam outlet Replaceable steam cylinder High water sensor. Overflow prevents The humidifier stops filling if humidifier from over filling water reaches this sensor.

  • Page 47: End-Of-Season Drain

    O p e r a t i o n ( c o n t i n u e d ) steam. As the amount of water covering the electrodes increases, or as water conductivity increases, current flow increases. The fill valve remains open until the current flow increases to the amperage corresponding to the demand signal.

  • Page 48: Display Panel Operation

    O p e r a t i o n ( c o n t i n u e d ) Should the current rating exceed 125% of nominal current, the drain valve opens automatically. As the water level drops, the current rating drops back to the nominal value.

  • Page 49: Operating Modes

    O p e r a t i n g m o d e s Display operating mode Press the MODE button until the LED next to Display illuminates. Press the SELECT button to view the following: • Steam production rate in lbs/hr •...
  • Page 50 O p e r a t i n g m o d e s Service operating mode In the Service operating mode, components can be tested by manually switching them on or off using the SET button. To do this, press the MODE button until the LED next to Service illuminates.
  • Page 51 O p e r a t i n g m o d e s ( c o n t i n u e d ) System Data operating mode The System Data operating mode provides a quick way to review (but not change) current system parameters.
  • Page 52 9999 then every 10 hours. Setting of the anti-foam program: FOAM oF function not active Indicator on function active 1.CyL Control setting of single units (XT-10/20/30/50/75/100) 2.Cyl Control setting of double units (XT-150/200) High limit actual. Displays relative humidity measured H.L. A <%RH> Indicator by the high limit VAV transmitter.
  • Page 53 O p e r a t i n g m o d e s ( c o n t i n u e d ) Adjustments operating mode The Adjustments operating mode provides access to values that require frequent adjustment. To make adjustments, press the MODE button until the LED next to Adjustments illuminates.
  • Page 54 O p e r a t i n g m o d e s ( c o n t i n u e d ) Table 52-1: Program operating mode Program Default Alternate Mode Definition Range Increment Variable type variable display display Program...
  • Page 55 O p e r a t i n g m o d e s ( c o n t i n u e d ) Table 53-1: Program operating mode (continued) Program Default Alternate Mode Definition Range Increment Variable type variable display display...

  • Page 56: Sequenced Application

    S e q u e n c e d a p p l i c a t i o n ; h u m i d i f i e r s t a r t - u p Sequenced application Up to four XT Series humidifiers can be connected to operate in sequence.
  • Page 57 H u m i d i f i e r s t a r t - u p ( c o n t i n u e d ) phase of operation. The duration of this phase varies and lasts until the cylinder has achieved the nominal output.

  • Page 58: System Messages

    S y s t e m m e s s a g e s E messages The humidifier is factory programmed to display five system messages: E1, E2, E3, E4, and E5. These messages may also be programmed to provide remote indication using two relays, r1 and r2.

  • Page 59: Maintenance

    S y s t e m m e s s a g e s ( c o n t i n u e d ) E5: Service setpoint reached An E5 message indicates service setpoint SErv has been reached. This is a service message only; the humidifier will continue to operate.

  • Page 60: Maintenance Procedures

    M a i n t e n a n c e p r o c e d u r e s Inspect unit every 500 hours of operation W A R N I N G ! At 500 hour intervals, inspect the steam cylinder, fill and drain When performing maintenance on the XT valves, vapor hose, condensate piping, water supply piping, drain, Series humidifier:...
  • Page 61 M a i n t e n a n c e p r o c e d u r e s ( c o n t i n u e d ) 10. Clean the cylinder if mineral buildup is minimal. To clean the cylinder, flush with fresh water only.
  • Page 62 M a i n t e n a n c e p r o c e d u r e s ( c o n t i n u e d ) 3. Disconnect the three slip-on terminals from the three tabs on the 24 VAC drain valve coil.

  • Page 63: Troubleshooting

    Tr o u b l e s h o o t i n g 1. Review possible causes and recommended actions. If you have a problem with your XT Series Humidifier, review the troubleshooting guide on the following pages for possible causes and recommended actions for typical problems.
  • Page 64 Tr o u b l e s h o o t i n g ( c o n t i n u e d ) Table 62-1: Problem/possible cause/action Problem Possible cause Action No readable information No power or incorrect •...
  • Page 65 Tr o u b l e s h o o t i n g ( c o n t i n u e d ) Table 63-1: Problem/possible cause/action Problem Possible cause Action Unit does not fill with No water supply to fill valve •...
  • Page 66 Tr o u b l e s h o o t i n g ( c o n t i n u e d ) Table 64-1: Problem/possible cause/action Problem Possible cause Action Humidity below desired No humidity demand signal •...

  • Page 67: Replacement Parts

    R e p l a c e m e n t p a r t s Figure 65-1: XT Series replacement parts OM-7372 DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual • Page 65...
  • Page 68 Hose clamp, steam hose to adaptor (XT-20 208/240V/1-Ph, XT-30/50/75/100/150/200) 700560-125 Hose, drain 22/29 mm × 10.00 530005-010 Hose clamp D29, drain cup, and steam cylinder to steam hose (XT-10/20 except XT-20 208/240V/1-Ph) 530001-051 Hose clamp D43, steam cylinder to steam hose (XT-20 208/240V/1-Ph, XT-30/50/75/100/150/200) 530001-052...
  • Page 69 R e p l a c e m e n t p a r t s ( c o n t . ) Table 67-1: XT Series replacement parts Description Part no. Wiring kit (XT-10 208/240/480/600V/3-Ph, XT-20 208/240/480/600V/3-Ph) 530010-041 Wiring kit (XT-10 208/240/277/480/600V/1-Ph, XT-20 277/480/600V/1-Ph) 530010-042 Wiring kit (XT-20 208/240V/1-Ph)
  • Page 70 Valve, inlet green (XT-20 except XT-20 208/240V/1-Ph) 530001-012 Valve, inlet red (XT-20 208/240V/1-Ph, XT-30/50) 530001-013 Valve, inlet white (XT-75/100/150/200) 530001-014 Fill cup with cap (XT-10/20 except XT-20 208/240V/1-Ph) 530001-021 Fill cup with cap (XT-20 208/240V/1-Ph, XT-30/50) 530001-022 Fill cup with cap (XT-75/100/150/200) 530001-025...
  • Page 71 R e p l a c e m e n t p a r t s ( c o n t . ) Figure 69-1: XT Steam Blower replacement parts OM-7448 Table 69-1: XT Steam Blower replacement parts Description Part no. Capacitor (XTSB-50 only) 406772-001 Fuse holder, 2-pole...
  • Page 72 For the most recent production information, be the repair or replacement of the defective product, or the refund visit our web site, www.dristeem.com of the purchase price, at DRI-STEEM’s election. DRI-STEEM shall not be liable for any costs or expenses, whether direct or indirect, associated with the installation, removal or reinstallation of any defective product.

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