DriSteem XT Series, XTP 002, XTP 003, XTP 006, XTP 010 Installation, Operation And Maintenance Manual

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READ AND SAVE THESE INSTRUCTIONS
XT SERIES
Electrode Steam Humidifiers
Installation, Operation, and Maintenance Manual
Page 2
Warnings and cautions
WARNINGS AND CAUTIONS
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.
Attention installer
Read this manual before installing, and leave this manual with product owner. This product must be installed by qualifi ed HVAC and electrical contractors. Installation must be code approved. Improper installation can cause property damage, severe personal injury, or death as a result of electric shock, burns, or fi re.
DriSteem
Europe: +3211823595
Read all warnings and instructions
Read this manual before performing service or maintenance procedures on any part of the system. Failure to follow all warnings and instructions could produce the hazardous situations described, resulting in property damage, personal injury, or death.
Failure to follow the instructions in this manual can cause moisture to accumulate, which can cause bacteria and mold growth or dripping water into building spaces. Dripping water can cause property damage; bacteria and mold growth can cause illness.
Hot surfaces and hot water
This steam humidifi cation system has extremely hot surfaces. Water in steam cylinders, steam tubing, and dispersion assemblies can be as hot as 212 °F (100 °C). Discharged steam is not visible. Contact with hot surfaces, discharged hot water, or air into which steam has been discharged can cause severe personal injury. To avoid severe burns, follow the cool-down procedure in this manual before performing service or maintenance procedures on any part of the system.
®
Technical Support: North America: 800-328-4447
Disconnect electrical power
Disconnect electrical power before installing supply wiring or performing service or maintenance procedures on any part of the humidifi cation system. Failure to disconnect electrical power could result in fi re, electrical shock, and other hazardous conditions. These hazardous conditions could cause property damage, personal injury, or death.
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
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Warnings and cautions
Electrical shock hazard
If the humidifi er starts up responding to a call for humidity during maintenance, severe personal injury or death from electrical shock could occur. To prevent such start-up, follow the shutdown procedure on Page 49.
CAUTION
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.
Hot discharge water
Discharge water can be as hot as 212 °F (100 °C) and can damage some drain plumbing materials not rated for hot drain water. To prevent such damage, make sure drain water tempering is selected, and supply water is not heated. Do not shut off supply water to the cylinder before it is drained.
Excessive supply water pressure
Supply water pressure greater than 80 psi (550 kPa) can cause the humidifi er to overfl ow.
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
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Table of contents
ATTENTION INSTALLER
Original Instructions
Read this manual before installing. Leave manual with product owner.
DriSteem Technical Support 800-328-4447
Website:
Documents can be viewed, printed or ordered from our website, www.dristeem.com.
DriCalc sizing and selection software:
®
DriCalc
is our humidifi cation system sizing and selection software, which can be accessed from dristeem.com.
WARNINGS AND CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Capacities, line currents, and fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Dimensions and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dispersion options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Selecting a location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fill cup extension kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Steam cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Piping: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Supply water and drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Field piping overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
XT steam blowers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Humidifier wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Sensor placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Dispersion: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Selecting the dispersion assembly location . . . . . . . . . . . . . . . . . . . 20
Returning condensate to steam cylinder . . . . . . . . . . . . . . . . . . . . . 22
Steam outlet connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Steam outlet connections with hose . . . . . . . . . . . . . . . . . . . . . . . . 24
Single dispersion tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Drip tee installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Connecting to humidifier with tubing . . . . . . . . . . . . . . . . . . . . . . . 32
Rapid-sorb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
XT steam blowers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
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Table of contents
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Model XTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Shutdown and cool-down procedures . . . . . . . . . . . . . . . . . . . . . . . . . 49
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Replacing steam cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Drain valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
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Product overview
PRODUCT OVERVIEW
DriSteem XT Series electrode steam humidifi ers use heat caused by electrical resistance in their fi ll water to boil the fi ll water into humidifi cation steam. Steam output and water conductivity are managed via automatic draining and fi lling. See Figure 2-1.
FIGURE 2-1: XT SERIES HUMIDIFIER COMPONENTS
Steam to duct or XT steam blower (see dispersion options on Page 8)
Control panel for on-board controller (see Figure 3-1)
Fill cup
High water sensor
Steam cylinder
Overfl ow hose
Electrodes
Electrical resistance in fi ll water
OM-7661_aa
Download DriSteem literature
DriSteem product manuals can be downloaded, printed, and ordered from our website: www.dristeem.com
The Vapor-logic Installation and Operation Manual ships with Model XTP humidifi ers. It is a comprehensive manual. Refer to it for information about the keypad/display and Web interface, and for troubleshooting information.
Cylinder drain
Fill hose
Supply water connection
Note: See detailed installation drawing on Page 14 and principle of operation on Page 45.
Overfl ow to drain
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Product overview
SUPPLY WATER
There are benefi ts and trade-offs to consider when the application allows a choice between hard and softened water:
Hard water: The benefi t of hard water is less frequent draining and fi lling
than with softened water, which results in better energy and water effi ciency and more consistent steam output. However, cylinder replacement could be more frequent with hard water, because hard water scale coats the electrodes. The harder the water, the more frequent the need for a new cylinder.
Softened water may be used in the XT series electrode humidifi er. However,
softened water ions stay in solution to much higher concentrations than hard water ions. The result can be more frequent draining and fi lling, which results in less energy and water effi ciency, and less consistent steam output. While softened water can reduce scale build-up in the cylinder, it can also shorten cylinder electrode life.
CONTROLLER
The Model XTP humidifi er Vapor-logic® controller features menus for all humidifi er functions, with a Web interface for access to all functions via Ethernet. See "Operations" beginning on page 45 for details.
FIGURE 3-1: XT SERIES HUMIDIFIER CONTROL PANEL
Table 3-1: DriSteem supply water guidelines for
XT series electrode humidifiers
Supply water conductivity
Chlorides Not limited
pH 6.5 to 8.5
Silica < 15 ppm
Demineralized, deionized, and reverse­osmosis water cannot be used.
Supply water outside of these guidelines may void your DriSteem warranty. Please contact your DriSteem Representative or DriSteem Technical Support if you need advice.
350 to 1250 μS/cm (roughly comparable to water hardness of 10 to 36 grains per gallon).
XTP Vapor-logic keypad/display
Status display and
menu selection
Softkeys for direct
menu access
Navigation buttons
for item selection
Controller on-off switch*
* On-off switch for control board — not a safety shut-off to humidifi er power wiring.
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SPECIFICATIONS
Capacities, line currents, and fusing
Table 4-1: Line currents and recommended fusing for XT Series humidifiers
Model Nominal steam capacity
XTP lbs/hr kg/h
002 5 2 1.7 1
003 10 5 3.3
006 18 8 6.0
010 30 14 10.0 3
017 50 22 16.5 3
025 75 34 25.0 3
033 100 45 33.3 3
042 125 57 41.7 3
048 143 65 47.8 3
050* 150 68 50.0 3
067* 198 90 66.7 3
083* 250 113 83.3 3
096* 287 130 95.7 3
* These models have two steam cylinders and require independent service connections.
kW Phase Volts Maximum line current (amps) Recommended fusing (amps)
120 17 25 208 10 15 230 8 15 240 8 15 208 19 25 230 17 25
1
3
1
3
240 17 25 277 14 20 400 10 13 480 8 15 600 7 10 208 11 15 240 10 15 400 6 10 480 5 10 600 4 10 208 35 45 230 31 40 240 30 40 277 26 35 400 18 25 480 15 20 600 12 15 208 20 25 240 17 25 400 10 13 480 9 15 600 7 10 208 33 45 240 29 40 400 17 25 480 14 20 600 12 15 208 55 70 240 48 60 400 29 40 480 24 35 600 19 25 400 43 63 480 36 50 600 29 40 400 58 80 480 48 70 600 39 50 400 72 100 480 60 80 600 48 70 400 80 100 480 69 90 600 55 70 400 2 x 43 2 x 63 480 2 x 36 2 x 50 600 2 x 29 2 x 40 400 2 x 58 2 x 80 480 2 x 48 2 x 70 600 2 x 39 2 x 50 400 2 x 72 2 x 100 480 2 x 60 2 x 80 600 2 x 48 2 x 70 400 2 x 80 2 x 100 480 2 x 69 2 x 90 600 2 x 55 2 x 70
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Dimensional drawings
FIGURE 5-1: XT SERIES HUMIDIFIER DIMENSIONAL DRAWINGS
SPECIFICATIONS
Top
Front
Bottom
Models XTP 002 through 048
E
Electrical knockout
D
Fill cup extension kit*
10.0 (254)
B
A
Drain outlet
Supply water connection
C
F
D
G
E
Dispersion outlet
Electrical knockout
Electrical knockouts
OM-7672
Top
Front
10.0 (254)
B
Bottom
Supply water connections
C
Models XTP 050 through 096
21.0 (533)
E
Dispersion outlets
Fill cup extension kits*
A
15.1 (384)
G
Electrical knockouts
D
Notes: * Fill cup extension (Figure 5-1) is required for the following:
- 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)
• Labeled dimensions: inches (millimeters).
• See mounting dimensions in Figure 9-1.
OM-7673
F
D
E
21.0 (533)
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Drain outlets
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SPECIFICATIONS
Dimensions and weights
Table 6-1: XT Series humidifier dimensions by model number
Model XTP
Dimension Description
A Cabinet width 14.6 370 17.7 450 19.9 504 39.6 1005
B Cabinet height 20.6 523 24.1 612 25.6 650 25.6 650
C Cabinet depth 8.7 221 11.8 300 13.4 340 13.4 340
Cabinet back edge to steam/drain outlet
D
centers
E Cabinet left edge to steam/drain outlet centers 4.4 112 6.0 152 7.0 178 7.0 178
Cabinet back edge to supply water connection
F
center
Cabinet left edge to supply water connection
G
center
002, 003, 006 010, 017 025, 033, 042, 048 050, 067, 083, 096
inches mm inches mm inches mm inches mm
4.5 114 6.0 152 6.7 170 6.7 170
6.7 170 9.5 241 11.1 282 11.1 282
1.0 25 1.0 25 1.1 28 1.1 28
Table 6-2: XT Series humidifier weights by model number
Model XTP
002, 003 006 010, 017 025, 033, 042, 048 050, 067, 083, 096
lbs kg lbs kg lbs kg lbs kg lbs kg
Shipping weight 37 17 37 17 50 23 64 29 139 63
Maximum operating weight 38 17 46 21 79 36 115 52 219 99
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Dispersion options
SPECIFICATIONS
The duct dispersion options in Figure 7-1 and the open space dispersion options in Figure 7-2 are available for XT Series humidifi ers. For installation details, see “Dispersion” beginning on Page 20.
FIGURE 7-1: XT SERIES HUMIDIFIER DUCT DISPERSION OPTIONS
Ultra-sorb
OM-7667
FIGURE 7-2: XT STEAM BLOWERS
Mounted on top of humidifi er
OM-7670
Mounted up to 10' (3 m) away from humidifi er
Rapid-sorb
Single dispersion tube
OM-7668
OM-7698
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.
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INSTALLATION
Selecting a location
HUMIDIFIER
When selecting a location for the humidifi er, consider the following:
• Proximity to the duct
Install the humidifi er near the air duct system where the dispersion assembly
will be located. The maximum recommended length for steam hose connecting a single humidifi er to a dispersion assembly is 10' (3 m). The maximum recommended developed length for tubing connecting a single humidifi er to a dispersion assembly is 20' (6 m).
For more information about installing dispersion assemblies, see
“Dispersion” beginning on Page 20.
• Elevation of the installed dispersion assembly
The recommended installation location for the dispersion assembly is at an
elevation higher than the humidifi er. However, if the dispersion assembly must be installed at an elevation lower than the humidifi er, install a drip tee and drain. See “Drip tee installation” on Page 29.
Before installing a dispersion assembly or interconnecting piping, review all
pitch requirements in the “Dispersion” section of this manual.
• Temperature and relative humidity (RH):
Install humidifi er only in locations that meet the following temperature and
RH requirements:
- Maximum ambient temperature: 104 °F (40 °C)
- Minimum ambient temperature: 41 °F (5 °C)
- Maximum ambient humidity: 80% RH (non-condensing)
Staging multiple humidifiers
Up to four Model XTP humidifi ers can be staged to operate in sequence. In a sequenced application, one control input signal is divided into user-selectable control input signals for the connected humidifi ers. See the Vapor-logic In stal la tion and Op er a tion Man u al for instructions on staging multiple humidifi ers.
FIGURE 8-1: XT SERIES HUMIDIFIER RECOMMENDED MINIMUM CLEARANCES
36" (914 mm) front clearance
16"
(400 mm)
3"
(76 mm)
15" (380 mm)
3" (76 mm) between units
OM-7664
• Required clearances (see Figure 8-1)
• Electrical connections
Electrical power supply connections are at the lower or upper right rear
corner of the unit. See “Humidifi er wiring” on Pages 17 and 18.
• Supply water and drain piping connections
Water supply piping and drain connections are at the bottom of the
cabinet. See “Piping” on Page 13.
• Exterior wall insulation
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.
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Mounting
FIGURE 9-1: XT SERIES HUMIDIFIER MOUNTING KEYHOLE LOCATIONS
INSTALLATION
Models XTP 002 through 048
A
0.390" x 0.719"
(9.9 x 18.3 mm) dia. keyholes
0.390" (9.9 mm)
dia. holes
B
C
D
OM-7969
Table 9-1: XT Series humidifier mounting keyhole dimensions
Dimension
A 3.9 100 7.1 180 7.5 190 14.0 356
002, 003, 006 010, 017 025, 033, 042, 048 050, 067, 083, 096
inches mm inches mm inches mm inches mm
0.390" x 0.719" (9.9 x 18.3 mm) dia. keyholes
0.390" (9.9 mm) dia. holes
Model XTP
Models XTP 050 through 096
E
A
B
C
D
OM-7970
B 3.0 75 3.6 92 3.4 86 3.3 84
C 3.2 81 4.4 112 4.1 104 4.1 104
D 14.0 355 16.3 414 18.9 480 18.9 480
E ——————19.0 483
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INSTALLATION
Mounting
Unpack the humidifi er from the shipping carton, and remove the cabinet doors and steam cylinder (see removing steam cylinder instructions below).
Note: When fi rst unpacking the humidifi er, cut and remove the shipping strap
that goes around the cylinder and through the cylinder guides. This strap does not need to be replaced.
REMOVING STEAM CYLINDER
If sent to this page from the “Maintenance” section, and the humidifi er has been operating, make sure the cylinder is empty and cooled before removing it. See the shutdown and cool-down procedures on Page 49.
1. Carefully pull the electrode plugs straight up off the cylinder to ensure no damage to the plug boot occurs.
2. Disconnect the high water sensor wire.
3. Place hands palms-down below cylinder on both sides of drain outlet.
4. Press up against bottom of cylinder with backs of hands while pressing down against cabinet floor with fingers.
5. Raise cylinder until drain outlet clears drain valve body and the side tabs on the cylinder have cleared the cylinder guides. Remove cylinder from cabinet.
WALL MOUNTING HUMIDIFIER
Mount the humidifi er level and plumb using the lag bolts provided. Follow the instructions below for mounting on a wood stud wall.
Mounting hazard
Mount humidifi er per the instructions in this manual and to a structurally stable surface. Improper mounting of the humidifi er can cause it to fall or tip, resulting in severe personal injury or death.
1. Mount spanner boards on wall, spanning at least two studs. Position one board at top of cabinet (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.
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Fill cup extension kit
INSTALLATION
A fi ll cup extension (Figure 11-1) is required for the following:
• 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)
REMOVING EXISTING FILL CUP
Remove the existing fi ll cup as follows:
1. Remove steam cylinder from XT cabinet (if not already out).
2. Expand spring clamps and slide them up cylinder fill hose and supply water hose, and disconnect hoses from cylinder fill hose connection and fill valve adapter.
3. Disconnect overflow hose from overflow elbow.
4. Remove fill cup and hoses (fill cup is press fit into top of XT cabinet).
INSTALLING FILL CUP EXTENSION KIT
1. Remove steam cylinder(s) from XT cabinet (if not already out).
2. Route fill cup extension kit hoses into cabinet through fill cup hole, and fasten extension bracket as shown with two screws provided.
3. Route hoses along back of cabinet interior to provide clearance for cylinder.
FIGURE 11-1: FILL CUP EXTENSION KIT
Fill cup (see inset below)
Overfl ow hose (C)
Supply water hose (A)
Fill valve adapter
Cylinder fi ll hose (B)
Overfl ow elbow
Drain cup
plate Cylinder fi ll hose connection
OM-7971-XT
Fill cup
4. Cut supply water hose (small-diameter hose) (A) to length so it can attach to fill valve adapter without kinking.
5. Expand spring clamp and slide it onto supply water hose (A) far enough so it will not interfere, then push hose onto fill valve adapter. Expand and slide spring clamp into place.
6. Cut cylinder fill hose (bottom, center hose) (B) to length so it can attach to cylinder fill hose connection without kinking.
7. Expand spring clamp and slide it onto cylinder fill hose (B) far enough so it will not interfere, then push hose onto cylinder fill hose connection. Expand and slide spring clamp into place.
8. Cut overflow hose (C) to length so it can attach to overflow elbow without kinking.
9. Push overflow hose onto overflow elbow. Spring clamp is not required on this connection.
Supply water (A)
Cylinder fi ll (B)
1" air gap
Overfl ow (C)
OM-7629
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INSTALLATION
Steam cylinder
INSTALLING STEAM CYLINDER
1. Make sure strainer is pressed into steam cylinder drain outlet and strainer flange is flush with bottom of cylinder outlet. See Figure 12-1.
2. Use water to lubricate drain outlet on bottom of cylinder and O-ring in drain valve body. See Figure 12-1.
Note: Because of tight clearances, perform Steps 3 through 4 only if servicing
Models XTP 002 through 017 with top-mounted steam blower. For all other models, skip to Step 5.
3. Slide steam hose that connects to cylinder and steam blower up until it is engaged on steam inlet of steam blower and tight against bottom of steam blower.
4. Slide steam outlet of new cylinder all the way up into open end of steam hose from Step 3.
5. With Warning label on cylinder facing you, lower cylinder drain outlet into drain valve body, and rotate cylinder so side tabs line up with cylinder guides inside cabinet. Push down on cylinder until drain outlet is fully seated in drain valve body.
6. Slide steam hose down so it is fully engaged on cylinder steam outlet. Re-install hose clamp(s).
FIGURE 12-1: STEAM CYLINDER INSTALLATION
High water sensor pin
OM-7632
Strainer
7. Connect high water sensor (yellow) wire to single pin surrounded by plastic shoulder on cylinder.
8. Connect electrode wires to pins on top of cylinder. Make sure all plugs fit snugly and are fully engaged on pins.
Important: Three phase cylinders have color-coded dots on the cylinder
and color bands on the electrode plugs. When connecting the plugs, match the band colors on the plugs with the dot colors on the cylinder. Refer to the wiring diagram shipped with the humidifi er if necessary.
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.
Warning label
Cylinder guide
Drain valve body
OM-7972-XT
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INSTALLATION
Piping:
SUPPLY WATER PIPING
Supply water and drain
Use only copper for supply water piping; do not use rubber or plastic. The standard supply water connection before the fi ll valve is a 1/4" FIP.
Note: The supply water connection size is 3/8"BSP [DN10] in Europe.
In cases where water hammer may be a possibility, consider installing a shock arrestor. Water pressure must be 25 to 80 psi (175 to 550 kPa).
DRAIN PIPING
Drain piping must be code-approved, 3/4" (DN 20) ID material rated for 212 °F (100°C) minimum.
The drain cup has an integral grounding plate and requires a fi eld-installed 1" (25 mm) air gap to a drain funnel to prevent conduction of electricity in the drain line.
The XT Series humidifi er features user-selectable drain water tempering. When drain water tempering is selected, the humidifi er tempers drain water by opening the fi ll valve whenever the drain valve is energized to cool drain water before it enters the drain. Drain water tempering keeps water entering the drain line less than 140°F (60°C). Manually energizing the drain valve when the supply water is shut off can allow 212 °F (100 °C) water to enter the drain line.
Important: Thoroughly fl ush supply
water piping to remove pipe residue and stagnant water before connecting piping to humidifi er. Pipe residue and stagnant water in water supply piping can cause foaming, preventing humidifi er from reaching required steam capacity.
Hot drain pipes
Drain piping surface may be hot. Touching or contact with hot pipe may cause severe personal injury.
FIGURE 13-1: DRAIN PIPING DETAIL
Observe the following precautions when selecting and installing drain piping to ensure personal safety and material integrity:
• When using copper or other metallic drain piping, ground the drain piping to the earth ground lug in the XT Series humidifi er.
• Chlorinated polyvinyl chloride (CPVC) piping is a non-metallic alternative for drain piping. It is rated up to 212°F (100°C) for intermittent-use, low­pressure applications.
The connection size for the steam cylinder drain is 1" (DN25) hose. Do not reduce this connection size. If drainage by gravity is not possible, use a reservoir pump rated for 212 °F (100 °C) water.
The open drain must be at least 12” (300 mm) below the bottom of the XT humidifi er, to help prevent steam condensation on the humidifi er. Use the 12” (300 mm) drain hose provided and position above fi eld-installed open drain. 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.
OM-7591
1" (25 mm) air gap
Open drain
3/4" (DN20) I.D.
* Ships with humidifi er
• Dashed lines indicate provided by installer
• The open drain must be at least 12” (300 mm) below the bottom of the XT humidifier, to help prevent steam condensation on the humidifier.
Hose clamp*
Drain hose*
Pitch 1/8"/ft (1%) toward drain
To drain
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INSTALLATION
Piping:
FIGURE 14-1: XT SERIES HUMIDIFIER FIELD PIPING OVERVIEW
Drain hose and clamp*
Fill valve with 1/4" FIP (3/8"BSP [DN10] in Europe) supply water connection
Shock arrester (by installer) recommended to reduce water hammer
Metallic water supply line
Field piping overview
Steam hose or tubing. DriSteem recommends tubing for runs longer than 10' (3 m). See Table 26-1 for maximum tubing lengths. Tubing must be grounded.
Install plumb
Pitch 1/8"/ft (1%) toward drain
1¼" (DN32) drain piping after second drain connection, or if piping run is over 10’ (3 m).
Floor drain
3/4" (DN20) drain piping up to second drain connection
1" (25 mm) air gap required to isolate unit drain piping from sanitary drain piping. Locate air gap only in spaces with adequate temperature and air movement to absorb fl ash steam, or condensing on nearby surfaces could occur.
Open drains required directly below humidifi er drains to prevent downstream drain line blockage from causing water to back up into cylinder. Refer to governing codes for drain pipe size and maximum discharge water temperature. Install spill funnels plumb to fl oor drain.
Notes:
• Dashed lines indicate provided by installer.
• Two-cylinder model shown. * Ships with humidifi er
3/8" (DN10) copper water supply line; water pressure must be 25 to 80 psi (175 to 550 kPa).
Inlet strainer, by installer
Supply valve, by installer
OM-7973
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INSTALLATION
Piping:
FIGURE 15-1: PIPING FROM XT SERIES HUMIDIFIER TO REMOTE XT STEAM BLOWER
Hose clamp (provided)
Steam hose (purchased separately from DriSteem)
Hose clamp (provided)
XT steam blowers
Plastic tie
OM-7974
To open drain or humidifi er fi ll cup. Water seal is required, whether condensate is piped to open drain or returned to humidifi er fi ll cup.
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.
Condensate hose (purchased separately from DriSteem)
7” (178 mm) water seal
Plastic tie
Hose clamps (provided)
Steam hose (purchased separately from DriSteem)
Stainless steel Y connector*
Hose clamp*
Steam hose*
Hose clamp*
* Provided in optional connector
kit Part No. 191070-102
OM-7975
Model XTP 025 only
Plastic tie
Condensate hose (purchased separately from DriSteem)
7” (178 mm)
water seal
Plastic tie
To open drain or humidifi er fi ll cup. Water seal is required, whether condensate is piped to open drain or returned to humidifi er fi ll cup.
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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).
• Models XTP 025 and 033 are not intended for use with a direct-mounted steam blower.
• Models XTP 042 through 096 are not intended for use with a steam blower.
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Humidifi er wiring
All wiring must be code approved and in accordance with the unit wiring diagram. Power supply wiring must be rated for 105 °C. See Figure 17-1 for the humidifi er wiring diagram locations.
When selecting a location for installing the humidifi er:
• Avoid areas close to sources of electromagnetic emissions such as power distribution transformers.
• Do not loop power wiring.
• Do not use aluminum wire.
CONDUIT KNOCKOUTS
Conduit and control wiring knockouts are provided on the XT Series humidifi er cabinet. See Figure 5-1.
INSTALLATION
Electric shock hazard
Only qualifi ed electrical personnel should perform fi eld wiring installation procedures. Improper wiring or contact with energized circuits may cause property damage, severe personal injury, or death as a result of electric shock and/or fi re.
CONTROL COMPONENT PLACEMENT
Follow the guidelines on Page 19 for placing humidistats, transmitters, and airfl ow proving switches.
CAUTION
Adding conduit connections not recommended
Adding alternate conduit connections is not recommended. If you must make additional holes in the humidifi er cabinet, protect all internal components from debris, and vacuum out the cabinet when fi nished. Failure to follow these precautions can damage sensitive electronic components and void the DriSteem warranty.
FIGURE 17-1: FIELD WIRING REQUIREMENTS
Wiring diagram inside of humidifi er cabinet
Power supply
Fused disconnect
OM-7692
XT Series humidifi er
Notes:
• Control wiring and power wiring must be run in dedicated or separate earthed metal conduit, cable trays, or trunking.
• Separate the line voltage wiring from low voltage control circuit wiring when routing electrical wiring inside the humidifi er cabinet.
• Do not use chassis or safety grounds as current-carrying commons. Never use a safety ground as a conductor or neutral to return circuit current.
• For circuit protection requirements, see recommended fusing in Table 4-1.
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INSTALLATION
Humidifi er wiring
CONNECTION INSTRUCTIONS
Before connecting power, refer to the wiring diagram or the data plate on the outside of the cabinet for wire sizing amperage.
For control signal wiring from a humidistat, transmitter, or signal by others, see the wiring diagrams shipped inside the humidifi er.
See “Step 1 – Field wiring” in the Vapor-logic Installation and Operation Manual for detailed instructions on the following:
• Control input wiring:
See the “Control input” section.
• Duct airfl ow proving switch and duct high limit humidistat wiring (recommended optional devices):
See the following sections:
“Airfl ow proving switch” and “Duct high limit switch or transmitter”
• Remote signal wiring:
See the following sections:
“Programmable triac” and “Programmable relay (dry contact)”
EARTH GROUNDING REQUIREMENTS
A code-approved safety earth grounding system is required. The ground connection must be made with solid metal-to-metal connections. Ground wire should be the same size as power wiring.
UNITS WITH STEAM BLOWER
Steam blowers (SDUs) receive power for operation from the XT series humidifi er. Install 2 fuses in the XT unit to provide power to the steam blower. Fuses are shipped with the steam blower. Replacements available from DriSteem.
Excessive moisture hazard
DriSteem strongly recommends installing a duct airfl ow proving switch and a duct high limit humidistat. These devices prevent a humidifi er from making steam when there is low airfl ow in the duct or when the RH level in the duct is too high. Failure to install these devices can result in excessive moisture in the duct, which can cause bacteria and mold growth or dripping through the duct.
Proper wiring prevents electrical noise.
Electrical noise can produce undesirable effects on electronic control circuits, which affects controllability. Electrical noise is generated by electrical equipment, such as: inductive loads, electric motors, solenoid coils, welding machinery, or fl uorescent light circuits. The electrical noise or interference generated from these sources (and the effect on controllers) is diffi cult to defi ne, but the most common symptoms are erratic control or intermittent operational problems.
Important:
• For maximum EMC effectiveness, wire all humidity, high limit, and airflow controls using multicolored shielded/screened plenum-rated cable with a drain wire for the shield/screen. Connect the drain wire to the shield/screen ground terminal with wire less than 2" (50 mm) in length.
• Do not ground shield at the device end.
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Sensor placement
INSTALLATION
SENSOR LOCATION IS CRITICAL
Sensor location has a signifi cant impact on humidifi er performance. See the recommendations below and Figure 19-1.
Note: DriSteem recommends that you do not interchange room and duct
humidity devices. Room humidity devices are calibrated with zero or little airfl ow, whereas duct humidity devices require air passing across them.
Recommended humidity control (transmitter/humidistat) locations:
A. Ideal. Ensures the best uniform mix of dry and moist air with stable
temperature control.
B. Acceptable, but room environment can affect controllability, such as when
sensor is too close to air grilles, registers, or heat radiation from room lighting.
C. Acceptable. Provides uniform mixture of dry and moist air. If extended time
lag exists between humidity generation and sensing, extend sampling time.
D. Acceptable (behind wall or partition) for sampling entire room if sensor is
near an air exhaust return outlet. Typical placement for sampling a critical area.
E. Not acceptable. These locations might not represent actual overall
conditions in the space.
Other factors affecting humidity control
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:
• Size of humidification system relative to load
• Overall system dynamics associated with moisture migration time lags
• Accuracy of humidistats and humidity transmitters and their location
• Dry bulb temperature accuracy in space or duct
• Velocities and airflow patterns in ducts and space environments
• Electrical noise or interference
F. Not acceptable. Do not place sensors near windows, door passageways,
or areas of stagnant airfl ow.
Recommended safety (airfl ow and high limit) sensor location:
G. Best sensing location for high limit humidistat or humidity sensor and airfl ow
proving switch.
FIGURE 19-1: RECOMMENDED SENSOR LOCATIONS
Outside air
Relief air
Damper control
Return air
Window
E
s
A
s
Air handling
C
s
Wall or partition
unit
s
8' to 12'
(2.4 m to 3.7 m)
min.
G
s
D
s
B
E
s
High limit humidistat or high limit transmitter (set at 90% RH maximum)
Airfl ow switch or differential pressure switch (sail type recommended for VAV applications)
Vapor absorption has taken place
Point of vapor absorption
Humidifi er dispersion assembly
Turning vanes
F
Doorway
E
s
F
Window
DC-1084 mc_060508_0750-XT
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INSTALLATION
Dispersion:
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.
• In general, the dispersion assembly is best placed where the air can absorb the moisture being added without causing con den sa tion at or after the unit. This normally will be after the heating coil or where the air tem per a ture is highest.
Selecting the dispersion assembly location
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INSTALLATION
Dispersion:
• Place the dispersion assembly such that absorption will occur:
– before the intake of a high effi ciency fi lter, because the fi lter can remove
the visible moisture and become waterlogged; – before coming in contact with any metal surface; – before fi re or smoke detection devices; – before a split in the duct; otherwise, the dispersion assembly can direct
more moisture into one duct than the other.
• When draining dispersion condensate to an open drain, provide a 1" (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.
Selecting the dispersion assembly location
Hot surface and steam hazard
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.
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INSTALLATION
Dispersion:
CONDENSATE RETURN GUIDELINES
Returning condensate to steam cylinder
To prevent overfi lling the steam cylinder, follow the condensate guidelines below:
• When condensate can be returned to the steam cylinder:
– Single dispersion tube – Up to 20 lbs/hr (9.1 kg/h) of steam production – 10' (3 m) or less of steam hose between humidifi er and dispersion – 20' (6 m) or less of tubing between humidifi er and dispersion
• When condensate should be wasted to the drain:
– Ultra-sorb or Rapid-sorb dispersion – Single dispersion tube with condensate drain – Single dispersion tube with:
- 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 humidifier steam outlet
The steam outlet on the humidifi er is sized to the output of the humidifi er. DO NOT use interconnecting steam hose or tubing with an inside diameter smaller than the humidifi er steam outlet. Reducing the inside diameter will result in the internal humidifi er system pressure exceeding the parameters for acceptable performance.
• See maximum steam carrying capacities in Table 26-1 and 27-1.
• If the humidifier must be located higher than the dispersion assembly, use the recommended installation shown in Figure 29-1.
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INSTALLATION
Dispersion:
FIGURE 23-1: STEAM OUTLET CONNECTIONS, MODELS XTP 002 THROUGH 025
Connector (optional)* See Caution below
Steam outlet connections
Models XTP 002 through 006
To dispersion assembly To dispersion assembly
1½” (DN40) steam hose
1” (DN25) steam hose, 12" (305 mm) long (optional)*
Hose clamp (optional)*
Models XTP 010 through 025
1½” (DN40) I.D. steam hose**
Hose clamp**
OM-7977
* Provided in optional connector kit Part No. 191070-100 (see Table 61-1) ** Provided by installer.
OM-7978_aa
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.
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INSTALLATION
Dispersion:
FIGURE 24-1: STEAM OUTLET CONNECTIONS WITH HOSE, MODELS XTP 033 THROUGH XTP096 WITHIN 10' (3 M) OF DISPERSION ASSEMBLY
Steam outlet connections with hose
Preventing back pressure/abnormal operation in dual cylinder humidifi ers and installations where two individual units are connected to a single dispersion panel.
Read and follow all steam hose installation instructions. Failure to follow these instructions could result in excessive back pressure or abnormal operation of the unit. Severe personal injury or damage to the unit may result.
Models XTP 033, 042, and 048
To dispersion assembly
2" (DN50) steam hose, 10' (3 m) maximum
Stainless steel Y connector*
Hose clamp*
1½" (DN40) steam hose*, 12" (305 mm) long
Notes:
For horizontal runs longer than 5' (1.5 m) or vertical runs long than 10' (3m), tubing is required. Do not use steam hose.
See Table 61-1 for optional kits listed below.
* Provided in optional connector kit Part No. 191070-101 ** Provided in optional connector kit Part No. 191070-002 *** Provided in optional connector kit Part No. 162825-202F
OM-7979
Models XTP 067 through 096
3" (DN80) fl ange connection*** attaches directly to dispersion
2" (DN50) steam hose. Each cylinder to connect to dispersion separately. For distance greater than 10', use hard pipe.
Stainless steel Y connector*
Hose clamp*
1½" (DN40) steam hose*, 12" (305 mm) long
Model XTP 050
Hose clamp**
Stainless steel tube connector**
Steam hose** attaches directly to dispersion, 2" (DN50) on Ultra-sorb and Rapid-sorb
1½" (DN40) steam hose. Each cylinder to connect to dispersion separately. For distance greater than 10', use hard pipe.
OM-7980-XT
OM-7981
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INSTALLATION
Dispersion:
FIGURE 25-1: CONNECTING TWO CYLINDERS TO A DISPERSION ASSEMBLY
2" (DN50) steam hose connection
1½" (DN40) hose connections from two cylinders
Steam outlet connections with hose
OM-7913
Preventing back pressure/abnormal operation in dual cylinder humidifi ers and installations where two individual units are connected to a single dispersion panel.
Read and follow all steam hose installation instructions. Failure to follow these instructions could result in excessive back pressure or abnormal operation of the unit. Severe personal injury or damage to the unit may result.
3" (DN80) fl ange connection
2" (DN50) hose connections from two cylinders
OM-7914
Notes:
• For two cylinders, connect the stainless steel tube connector directly to the dispersion inlet as shown. 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.
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INSTALLATION
Dispersion:
Interconnecting piping requirements
Condensate control and collection
Controlling condensate fl ow and collection in an XT Series humidifi er system is critical to performance. To maximize humidifi er performance:
• See Table and 26-1.
• Follow all installation recommendations for your specific humidifier and dispersion assembly from here through Page 44.
Table 26-1: Maximum steam carrying capacity and length of interconnecting steam hose and tubing for
Models XTP 002 through XTP096
DriSteem steam hose*
Model
Hose I.D.
XTP inches DN lbs/hr kg/h ft m inches DN lbs/hr kg/h ft m
Maximum capacity
per cylinder
Maximum
††
length
(Insulate tubing to minimize loss of capacity and effi ciency.)
Tube size
Copper or stainless steel tubing
Maximum capacity
per cylinder
developed length
Maximum
†††
002 40 5 2 10 3 40 5 2 13 4.0
003 40 10 5 10 3 40 10 5 25 7.6
006 40 18 8 10 3 40 18 8 50 15.2
010 40 30 14 10 3 40 30 14 50 15.2
017 40 50 22 10 3 40 50 22 50 15.2
025,
050**
033,
067**
042,
083**
048,
096**
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. Do not use steam hose for outdoor applications.
These models have two steam cylinders. Capacities based on use with fi ll cup extensions.
**
For Models XTP 050 through XTP 096, capacities listed are maximum steam carrying capacity per tube attached to each cylinder, with separate
steam tubing from each cylinder to connection on dispersion device. See Figure 24-1.
††
DriSteem recommends 10' (3 m) maximum steam hose length pitched at 2"/ft (15%). Steam hose can sag if not supported for its full length.
Sagging leads to collecting condensate and system pressure issues. Metallic tubing is less prone to sagging and can allow for 1/8"/ft (1%) pitch minimum and longer distances.
†††
Developed length of tubing equals measured length plus 50% of measured length, to account for fi ttings.
40 75 34.0 10 3 40 75 34.0 100 30
2 50 100 45.4 10 3 2 50 100 45.4 100 30
2 50 125 56.7 10 3 2 50 125 56.7 100 30
2 50 143 65.0 10 3 2 50 143 65.0 100 30
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INSTALLATION
Dispersion:
CONNECTING TO HUMIDIFIER WITH STEAM HOSE
Interconnecting piping requirements
• Support steam hose for its full length to prevent sags, or low spots:
– For single dispersion tube without condensate drain, maintain a
minimum pitch of 2"/ft (15%) toward the steam cylinder.
– For dispersion devices with condensate drain, maintain a minimum pitch
of 2"/ft (15%) toward the dispersion device.
• Use DriSteem steam hose. Other manufacturers of steam hose may use unacceptable release agents or material mixes that can affect humidifi er system performance adversely. Using hose from alternative manufacturers increases the possibility of foaming in the cylinder and accelerated steam hose aging. Foaming causes condensate discharge at the dispersion assembly.
• Do not use steam hose in outdoor applications.
• Do not insulate steam hose. Insulation causes accelerated heat aging, causing the steam hose to become hard and susceptible to failure due to cracks.
• For single dispersion tube applications, see hose kit sizes in Table 32-1.
For tubing connections, see "Connecting to humidifi er with tubing" on page 28.
Important:
Steam hose must be supported for its full length to prevent sagging or low spots.
Table 27-1: Steam loss of interconnecting steam hose and tubing
Description
Steam hose
Tubing
Note: These data are based on an ambient air temperature of 80 °F (27 °C), fi berglass insulation, and copper tubing.
Nominal hose or tubing size
inches DN lbs/hr/ft kg/h/m lbs/hr/ft kg/h/m inches mm
40 0.15 0.22 N/A N/A N/A N/A
2 50 0.20 0.30 N/A N/A N/A N/A
40 0.11 0.164 0.02 0.03 2 50
2 50 0.14 0.21 0.025 0.037 2 50
Noninsulated Insulated
Steam loss
Insulation thickness
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INSTALLATION
Dispersion:
Connecting to humidifier with tubing
See Figures 31-1 and 32-1 for interconnecting tubing pitch requirements for single dispersion tube applications. See Table 34-3 for interconnecting tubing pitch requirements for Rapid-sorb applications.
• Support tubing between the humidifi er steam outlet and the dispersion system with pipe hangers. Failure to properly support the entire tubing weight may cause damage to the humidifi er tank and void the warranty.
• 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.
• Insulating tubing reduces the loss in output caused by condensation.
• If fl ux or any other surface preparation material is used when connecting steam tubing and fi ttings, drain and fi ll the steam cylinder two times after the fi rst half hour of steam production:
– Model XTP, step 5 on page 48 This will minimize the possibility of foaming in the steam cylinder.
Important:
Failure to follow the recommendations in this section can result in excessive back pressure on the humidifi er. This will result in unacceptable humidifi cation system performance such as leaking gaskets, blown water seals, erratic water level control, and spitting condensate from dispersion tubes.
Grounding steam tubing
The XT Series humidifi er has built-in functionality for detecting and eliminating foaming in the steam cylinder. However, because brief periods of foaming are possible, grounding metal steam tubing back to the humidifi er earth ground lug is necessary. This earth ground will prevent foam from creating an electrically conductive path from the electrically charged cylinder water to the metal steam tubing.
FIGURE 28-1: DETAIL OF VERTICAL RISER DRIPS
90° long sweep or two 45° elbows
Insulate tubing to reduce steam loss
XT Series humidifi er
OM-7680
Pitch
3/4" (DN20)
1" (25 mm) air gap
Pitch
To dispersion assembly
Tubing drip tee
6" (150 mm)
recommended
8" (200 mm) recommended
Open funnel or fl oor drain
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INSTALLATION
Dispersion:
Drip tee installation
Install a drip tee as shown below when the humidifi er is mounted higher than the dispersion assembly, when interconnecting hose or tubing needs to go over an obstruction, or when interconnecting piping runs are long.
FIGURE 29-1: DRIP TEE INSTALLATION
90° long sweep or two 45° elbows
Obstruction
Insulate tubing to reduce steam loss
Pitch
XT Series humidifi er
OM-7695
To dispersion assembly
6" (150 mm) recommended
8" (200 mm) minimum
1" (25 mm) air gap
Open funnel or fl oor drain. See fi rst note below.
Notes:
• Locate air gap only in spaces with adequate temperature and air movement to absorb fl ash steam; otherwise, condensation may form on nearby surfaces. 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
Tubing drip tee, by installer (see Part No. in Table 61-1)
3/4" (DN20)
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INSTALLATION
Dispersion:
DISPERSION TUBE WITH OR WITHOUT CONDENSATE DRAIN
Single dispersion tube
• Use a hose cuff and clamps to connect the steam outlet to tubing.
• Tubing diameter must match XT steam outlet connection.
• See maximum steam carrying capacities in Table 26-1 and steam loss in Table 27-1.
• If mounting the humidifi er above the level of dispersion tube, see "Drip tee installation" on Page 29. See also "Vertical riser drip details" in Figure 28-1.
DISPERSION TUBE WITHOUT CONDENSATE DRAIN, XTP 002 THROUGH 006
• See Figure 31-1.
• Maximum capacity of 1½" (DN40) dispersion tube without condensate drain is 29 lbs/hr (13.2 kg/h) insulated; 28 lbs/hr (12.7 kg/h) uninsulated.
• Condensate can fl ow back to the cylinder against 20 lbs/hr (9.1 kg/h) steam fl ow. Pitch the steam supply line back toward the humidifi er (see Figure 31-1).
Important:
Failure to follow the recommendations in this section can result in excessive back pressure on the humidifi er. This will result in unacceptable humidifi cation system performance such as leaking gaskets, blown water seals, erratic water level control, and spitting condensate from dispersion tubes.
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 in Figure 31-1.
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.
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INSTALLATION
Dispersion:
FIGURE 31-1: SINGLE DISPERSION TUBE WITHOUT CONDENSATE DRAIN, MODELS XTP 002 THROUGH 006 ONLY
Tubing must be grounded. Insulate tubing to reduce steam loss. See Table 26-1 for maximum tubing lengths.
See fi rst bullet in installation notes above.
Optional connector (see Caution above)
Note: Dashed lines indicate provided by installer.
* Pitch steam hose or tubing toward humidifi er:
• 2"/ft (15%) when using steam hose
• ½"/ft (5%) when using 1½" tubing
• ¼"/ft (2%) when using 2" tubing
Single dispersion tube
Single dispersion tube without condensate drain
Pitch*
Secure and seal escutcheon plates.
90° long sweep or two 45° elbows
XT Series humidifi er
Duct
4.5" (115 mm) minimum from top of duct
Pitch 2"/ft (15%)
OM-7693
Mounting nut, 3/8" - 16 (M10)
Dispersion tube: Orient with tubelets (steam orifi ces) pointing up.
Dispersion tube escutcheon plate
A
OM-351-1
A
Dimension A: 3.25" (82.5 mm) for 1½" tubes
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
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INSTALLATION
Single dispersion tubeDispersion:
DISPERSION TUBE WITH CONDENSATE DRAIN, MODELS XTP 010 AND 017
• See Figure 32-1.
• Maximum capacity of 1½" (DN40) dispersion tube with condensate drain is 65 lbs/hr (29.5 kg/h) insulated; 62 lbs/hr (28.1 kg/h) uninsulated.
• Models XTP 010 through XTP096 have capacities requiring dispersion devices with condensate drains. DriSteem recommends pitching steam tubing for these models towards the dispersion device. For XT
Table 32-1: Hose kit sizing by capacity
Hose kit
(steam hose,
dispersion tube,
and hardware)
1½" (DN40) without drain 29.0 13.2 28.0 12.7
1½" (DN40) with drain 65.0 29.5 62.0 28.1
Insulated Uninsulated
lbs/hr kg/h lbs/hr kg/h
Maximum
tube capacity
Series humidifi ers with capacities more than 20 lbs/ hr (9.1 kg/h), 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
These capacities require multiple tube assemblies and cannot use a single hose kit.
>65.0 >29.5 >62.0 >28.1
in order to eliminate a condensate collection point that will restrict steam fl ow. See vertical riser examples in Figure 28-1.
Capacities of Models XTP 025 through XTP096 require multiple tube assemblies and cannot use a hose kit. For multiple tube assemblies, see “Rapid-sorb” beginning on Page 33.
• If maximum developed length is more than 20' (6 m) and duct static pressure exceeds 2" wc (498 Pa), a fi ll cup extension kit (Figure 11-1) is required.
FIGURE 32-1: SINGLE DISPERSION TUBE WITH CONDENSATE DRAIN, MODELS XTP 002 THROUGH 017 ONLY
Tubing must be grounded. Insulate tubing to reduce steam loss. See Table 27-1 for maximum tubing lengths.
90° long sweep or two 45° elbows
XT Series humidifi er
5" (125 mm)
1" (25 mm) air gap
OM-7694
Pitch*
6" (150 mm) recommended
Water seal
Secure and seal escutcheon plates
Duct
1/4" NPT (DN8)
3/4" (DN20) (minimum) condensate drain tube by installer. Must be suitable for 212 °F (100 °C) water.
Open drain required. Locate air gap only in spaces with adequate temperature and air movement to absorb fl ash steam; otherwise, condensation may form on nearby surfaces. Refer to governing codes for drain pipe size and maximum discharge water temperature.
Single dispersion tube with condensate drain; orient dispersion tube with tubelets (steam orifi ces) pointing up.
Pitch tube toward drain 1/8"/ft (1%).
Mounting nut, 3/8"–16 (M10)
4.5" (115 mm) minimum from bottom of duct
1/2" O.D. (DN15) condensate drain tube. Pitch 1/4”/ft (2%) toward escutcheon plate.
* Pitch steam hose or tubing toward humidifi er:
• 2"/ft (15%) when using steam hose
• 1/8"/ft (1%) when using tubing
Note: Dashed lines indicate provided by installer.
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
32
Escutcheon plates
Dispersion tube
A
A
OM-351-1
Dimension A: 3.25" (82.5 mm) for 1½" tubes
Condensate drain
A
A
Page 37
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 – 3/4" × 2" (19 mm × 51 mm) L-bracket Note: Dispersion tubes, header, and L-bracket are each tagged with the
customer requested identifi cation number. – A single duct escutcheon plate the size of the header – Slip couplings or hose cuffs and clamps – Accessories such as duct plates, slip couplings, or hose cuffs – Bolts and washers for mounting the dispersion tubes to the bracket
• L-bracket mounting holes (see note):
– L-bracket 50" (1270 mm) long or shorter has a mounting hole 4" (100
mm) from each end for mounting the L-bracket to the duct or air handler wall.
– L-bracket longer than 50" (1270 mm) has an additional mounting hole
in the center.
Note: Hardware for mounting the L-bracket to the duct or air handler
wall and the hardware for the header support bracket is not
provided.
• Select an installation location that provides necessary access in and around the ductwork or air handler.
• The Rapid-sorb typically is installed centered side to side in a duct, or is installed across the face of a coil in an air handler.
Hot surface and steam hazard
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.
Important:
Before marking and drilling holes in the duct or air handler, refer to ALL pitch re quire ments for the Rapid-sorb as sem bly you received (see page 34). The size, quan ti ty, and location of penetrations are determined by the dimensions and confi guration of the Rapid-sorb assembly you received.
Important:
Failure to follow the recommendations in this section can result in excessive back pressure on the humidifi er. This will result in unacceptable humidifi cation system performance such as leaking gaskets, blown water seals, erratic water level control, and spitting condensate from dispersion tubes.
• The center line of the outer dispersion tubes should never be closer than
4.5" (114 mm) from the side of the ductwork or air handler wall.
• The following instructions are for a typical Rapid-sorb installation — horizontal-airfl ow duct with Rapid-sorb header either inside or outside the duct. See the DriCalc Installation Guides library or contact your representative/distributor or DriSteem for installation instructions for air handler or vertical airfl ow applications.
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INSTALLATION
Dispersion:
PITCH REQUIREMENTS
Rapid-sorb
• For Rapid-sorb with the header outside a horizontal­airfl ow duct, consider the following:
– 1½" (DN40) dispersion tubes: Use a fastener of
suffi cient length to ac com mo date the 1/8"/ft (1%) pitch requirement toward the 3/4" pipe thread (DN20) header drain fi tting.
– 2" (DN50) dispersion tubes: Bracket can be
mounted fl ush to ductwork. Typically, the 1/8"/ft (1%) pitch can be accomplished in the length of the hose cuffs used to connect tubes to header.
• See Table 34-3 and the drawings on the following pages for pitch requirements.
Table 34-1: Rapid-sorb dispersion tube capacities*
Tube capacity
Tube
diameter
inches DN lbs/hr kg/h lbs/hr kg/h
40 43.0 19.5 40.0 18.2
2 50 80.0 36.4 77.0 35.0
* Capacities shown are for horizontal airfl ow.
See DriCalc for vertical airfl ow capacities. If face height is <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.
Insulated
(High-Effi ciency Tubes)
Uninsulated
Table 34-2: Rapid-sorb header capacities
Header capacity Header diameter
lbs/hr kg/h inches DN
≤ 250 ≤ 113 2 50
251-500 114-227 3 80
501-800 228-363 4 100
801-1300 364-591 5 125
1301-2100 592-955 6 150
Table 34-3: Pitch of interconnecting piping, dispersion tubes, and headers for Rapid-sorb evaporative dispersion units
Airfl ow
Horizontal
Vertical
Type of
interconnecting piping
Steam hose
Tubing
Steam hose
Tubing
Diameter of
interconnecting piping
1½" (DN40)
2" (DN50)
1½" (DN40)
2" (DN50)
1½" (DN40)
2" (DN50)
1½" (DN40)
2" (DN50)
Pitch of
interconnecting piping
2"/ft (15%)
toward Rapid-sorb
1/8"/ft (1%)
toward Rapid-sorb
2”/ft (15%)
toward Rapid-sorb
1/8”/ft (1%)
toward Rapid-sorb
Pitch of
dispersion tubes
Vertically
plumb
2"/ft (15%)
toward header
Pitch of header
1/8”/ft (1%)
toward
condensate
drain
1/8”/ft (1%)
toward
condensate
drain
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
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INSTALLATION
Dispersion:
FIGURE 35-1: RAPID-SORB IN A HORIZONTAL AIRFLOW WITH HEADER INSIDE THE DUCT
L-bracket. Install with fl ange facing upstream direction of airfl ow. Drawing shows L-bracket correctly positioned for airfl ow.
Dispersion tube. Orient with tubelets perpendicular to airfl ow.
90° long sweep or two 45° elbows
Tubing must be grounded. Insulate tubing to reduce steam loss. See Tables 26-1 and 27-1 for maximum tubing lengths. See Notes.
XT Series humidifi er
Notes:
1. Use a hose cuff and clamps to connect steam outlet to tubing.
2. See installation procedure on Page 37.
3. Dashed lines indicate provided by installer.
Rapid-sorb with Models XTP 025 through 048
Slip coupling or hose cuff
• 2"/ft (15%) when using steam hose
• ¼"/ft (2%) when using 2" tubing
Secure and seal escutcheon plates.
Header pitch: 1/8"/ft (1%) minimum
OM-7696
Condensate drain: 3/4" pipe thread (DN20)
3/4" (DN20) copper
1" (25 mm) air gap
Open drain required: Locate air gap only in spaces with adequate temperature and air movement to absorb fl ash steam; otherwise, condensation may form on nearby surfaces. Refer to governing codes for drain pipe size and maximum discharge water temperature.
Airfl ow
Duct
5" (125 mm) recommended
Support bracket has
0.421" (11 mm) mounting holes at top, bottom, and end)
6" (150 mm) recommended
Hot surface and steam hazard
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
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INSTALLATION
Dispersion:
Rapid-sorb and Ultra-sorb with Models XTP 050 through 096
Models XTP 050 through XTP 096 have capacities requiring dispersion devices with condensate drains (Figure 35-1). For these models, DriSteem recommends the following:
• Run separate steam tubing from each cylinder to the connection on the dispersion device.
• Pitch steam tubing toward the dispersion device.
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
Preventing back pressure in dual-cylinder humidifi ers
Read and follow all steam tubing installation instructions for dual-cylinder humidifi ers. Failure to follow these instructions could result in excessive back pressure and the risk of equipment damage or severe personal injury.
Pitch*
Rapid-sorb steam dispersion panel
Pitch*
Dual-cylinder XT Series humidifi er
Drip tee
Drain
Pitch*
Pitch*
Drain
Ultra-sorb steam dispersion panel
OM-7982-XT
Drain
Notes: * Pitch 1/8"/ft (1%) minimum toward dispersion panel.
• See installation notes in Figure 25-1.
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
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Page 41
Rapid-sorbDispersion:
WITH HEADER INSIDE OF DUCT FOR HORIZONTAL AIRFLOW
Note: See the instructions for installing Rapid-sorb with the header outside the
duct for horizontal airfl ow.
1. Mark and cut holes in ductwork or air handler for steam header pen e tra tion, con den sate drain piping, and head er support bracket fastener. Allow 1/8"/ft (1%) header pitch toward the support bracket when you drill the hole for the header support bracket fastener.
2. Loosely fasten the header in place.
3. Rotate the header 90° so the header stubs point hor i zon tal ly in the duct.
When installing in an air handler, the rotation of the header is often less
than 90°. Typically, due to the condensate drain piping re quire ments, the header can be set on the fl oor of the air handler, assembled in the vertical position, and then raised and mounted in place.
INSTALLATION
CAUTION
Operate Rapid-sorb within rated steam capacity
Excessive steam fl ow to the Rapid-sorb steam dispersion assembly can cause condensate to exit the tubelets, which can cause water damage and standing water in the duct or air handler.
To avoid condensate exiting the tubelets, do not operate the Rapid-sorb beyond its rated capacity.
4. 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.
• Set slip coupling on header stub or dis per sion 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. If additional lubrication is necessary,
DO NOT use petroleum-based lubricant.
5. Allow the dispersion tubes to rest against the bottom of the duct.
With header outside of duct for horizontal airflow
1. Mark and cut holes in the ductwork for the dispersion tubes. Use the L-bracket as a template to mark the holes on the duct fl oor.
2. Temporarily, loosely suspend or support the header below the fi nal location. Vertical balance point of the dispersion tube length dictates where the header should be suspended or temporarily supported.
3. Continue with Step 4 at right.
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INSTALLATION
Rapid-sorbDispersion:
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.
7. Rotate the assembly up until the L-bracket aligns with the mounting holes in the duct or air handler.
• For 1½" (DN40) dispersion tubes:
– Header pitch is duplicated in the L-bracket. – Dispersion tube and slip coupling must be fully engaged on header
stub for O-rings to provide a seal. – High end of L-bracket can be fastened tight to duct or air handler. – Fastener on low end of L-bracket must be long enough to compensate
for pitch. Use a nut on both sides of L-bracket and duct or air handler
for stability.
• 2" (DN50) dispersion tubes – Fasten bracket to top of duct and use hose cuffs to compensate for
header pitch.
– Before securing hose cuffs with hose clamps on dispersion tube
and header stub, verify that dispersion tube orifi ces are directed perpendicular to airfl ow.
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
Note:
See Page 39 for steam supply and condensate drain line connection instructions.
9. Secure and seal the header escutcheon plate around the header.
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
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Rapid-sorbDispersion:
STEAM SUPPLY CONNECTIONS TO RAPID-SORB HEADER
Connect the steam supply interconnecting piping from the humidifi er to the Rapid-sorb. Steam supply piping requires a minimum of 1/8"/ft (1%) pitch toward the header.
If two humidifi ers are supplying one Rapid-sorb, a steam supply connector is needed. Typically, the steam supply connector attaches to the Rapid-sorb header supply end with hose cuff and clamps:
1. Always run separate steam tubing from each cylinder to the connection on the dispersion device. Connect a maximum of two cylinders to any single dispersion unit. See page 24 for more detailed instructions and connector kit part numbers.
2. Position the steam supply connector to accept the steam supplies while
maintaining the necessary pitch.
3. Make sure the hose clamps on the steam supply connector and header are
tight.
INSTALLATION
CONDENSATE DRAIN CONNECTIONS TO RAPID-SORB HEADER
Piping must be minimum 3/4" I.D. (DN20) and rated for 212 °F (100 °C) minimum continuous operating temperature.
The condensate drain line must be piped as shown in Figure 35-1. Provide a 6" (150 mm) drop prior to a 5" (125 mm) water seal to:
• Ensure drainage of condensate from the header
• Keep steam from blowing out of the drain line
After the water seal, run the drain line to an open drain with a 1" (25 mm) vertical air gap.
• Cut the drain line at a 45° angle on the end above the drain to permit a
direct stream of water into the drain pipe while maintaining a 1" (25 mm) air gap.
• 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
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Page 44
INSTALLATION
XT steam blowersDispersion:
Fuses provided with the steam blowers must fi rst be
XT STEAM BLOWER RISE, SPREAD, AND THROW
installed in the associated XT series humidifi ers.
On a call for humidity, the controller closes the contactors to energize the humidifi er electrodes and the XT steam blower. When the call for humidity is satisfi ed, the
Rise
Air intake
controller opens the humidifi er contactor, which stops the steam blower.
Spread
Throw
Steam outlet
As steam is discharged from the XT steam blower, it quickly cools and turns to a visible fog that is lighter than
OM-7686
air. As this fog is carried away from the XT steam blower by the airstream, it tends to rise toward the ceiling. If the fog contacts solid surfaces (columns, beams, ceiling, pipes, etc.) before it disappears, it can condense and drip. The greater the space relative humidity, the further the fog will rise, spread, and throw.
Table 40-1 lists the maximum rise, spread, and throw non-wetting distances for XT Series humidifi ers with XT steam blowers. Surfaces cooler than ambient temperature, or objects located within this minimum dimension, can cause condensation and dripping. 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.
Table 40-1: XT steam blower minimum non-wetting distances
Model
XTP lbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m ft m ft m ft m
002 5 2 0.7 0.2 0.9 0.3 1.9 0.6 0.8 0.2 1.2 0.4 2.1 0.6 1.1 0.3 1.5 0.5 2.5 0.8 1.5 0.5 1.5 0.5 3.2 1.0
003 10 5 1.4 0.4 1.9 0.6 3.8 1.2 1.7 0.5 2.4 0.7 4.3 1.3 2.3 0.7 3.0 0.9 5.0 1.5 3.0 0.9 3.0 0.9 6.5 2.0
006 20 8 2.5 0.8 2.8 0.9 6.5 2.0 3.0 0.9 3.3 1.0 7.4 2.3 3.8 1.2 4.0 1.2 8.5 2.6 4.0 1.2 4.0 1.2 10.0 3.0
010 30 14 3.1 0.9 3.0 0.9 7.5 2.3 3.6 1.1 3.4 1.0 8.7 2.7 4.3 1.3 4.0 1.2 9.5 2.9 4.2 1.3 3.5 1.1 11.0 3.4
017 50 22 3.3 1.0 3.1 0.9 9.6 2.9 3.8 1.2 3.5 1.1 10.7 3.3 4.4 1.3 4.0 1.2 12.0 3.7 4.8 1.5 4.7 1.4 14.0 4.3
025* 75 34 3.3 1.0 3.1 0.9 9.6 2.9 3.8 1.2 3.5 1.1 10.7 3.3 4.4 1.3 4.0 1.2 12.0 3.7 4.8 1.5 4.7 1.4 14.0 4.3
033* 100 45 3.3 1.0 3.1 0.9 9.6 2.9 3.8 1.2 3.5 1.1 10.7 3.3 4.4 1.3 4.0 1.2 12.0 3.7 4.8 1.5 4.7 1.4 14.0 4.3
Rise: Minimum non-wetting height above the steam outlet of the XT steam blower Spread: Minimum non-wetting width from the steam outlet of the XT steam blower Throw: Minimum non-wetting horizontal distance from the steam outlet of the XT steam blower * These models use two XT steam blowers.
Nominal
steam
capacity
30% RH @ 70 ºF (21 ºC) 40% RH @ 70 ºF (21 ºC) 50% RH @ 70 ºF (21 ºC) 60% RH @ 70 ºF (21 ºC)
Rise Spread Throw Rise Spread Throw Rise Spread Throw Rise Spread Throw
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
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INSTALLATION
XT steam blowersDispersion:
FIGURE 41-1: XT STEAM BLOWER DIMENSIONS
SDU-006E shown
Front Side Back
AC
B
OM-7688
Table 41-1: XT steam blower dimensions
SDU-006E SDU-017E
Dimension
inches mm inches mm
A 14.7 373 17.9 455
The XT steam blower can be mounted on top of an XT Series humidifi er cabinet, or wall­mounted remotely from the humidifi er. See Figure 41-1.
E
D
F
SDU-006E, for capacities up to 20 lbs/hr (9.1 kg/h), can be directly mounted on Models XTP 002 through 006.
SDU-017E, for capacities up to 50 lbs/hr (22.7 kg/h), can be directly mounted on Models XTP 010 and 017.
XT Series humidifi ers can be confi gured to operate with one or two steam blowers. Multiple SDU-017 are used remotely with Model XTP 025 or 033. See Table 41-2.
Note: XT steam blower installation must comply
with governing codes.
Table 41-2: Single or multiple XT steam blowers for XT Series humidifiers*
Model
XTP
002 1
SDU-006
per kit
SDU-017
per kit
B 6.0 152 13.8 350
C 7.8 198 11.0 279
D 3.0 76 3.6 91
E 3.9 99 7.1 180
F 2.7 69 4.2 107
* 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.
003 1
006 1
010 1
017 1
025 2
033 2
042 through 096 n/a n/a
Table 41-3: XT steam blower specifications
Model
SDU-006E 20 9.1 14.0 6.4 11.0 5.0 106 3.0 0.16 A 17 W 49 dBA
SDU-017E 50 22.7 29.0 13.2 24.0 10.9 665 18.8 0.23 A 23 W 53 dBA
Notes:
• XT steam blowers ship separately from XT Series humidifi ers.
• Noise measurements taken 6.5' (2 m) in front of XT steam blower cabinet.
Maximum capacity Shipping weight Operating weight Volume airfl ow
lbs/hr kg/h lbs kg lbs kg cfm m
3
/min
Current draw at
115V (50/60 Hz)
Input
power
Noise
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
41
Page 46
INSTALLATION
XT steam blowersDispersion:
MOUNTING XT STEAM BLOWER ON TOP OF HUMIDIFIER
The condensate tee kit shipped with the XT steam blower returns condensate from a top-mounted XT steam blower to the humidifi er's cylinder fi ll hose. See Figure 42-1. Install the kit as follows:
1. If humidifier is not already mounted to wall, see “Wall mounting humidifier” on Page 10.
2. Remove steam cylinder (see “Removing steam cylinder”on Page 10).
3. Assemble condensate hose from kit to condensate outlet at base of steam box, and install both plastic ties (included) on hose to ensure secure connection to steam box condensate outlet.
4. Assemble hose cuff and clamp to steam port on steam box.
5. Remove middle-rear knockout on top of humidifier cabinet, and mount XT steam blower to wall as noted on Page 43.
6. Feed condensate hose into humidifier cabinet through knockout hole created in Step 5, place XT humidifier below XT steam blower on wall, and secure humidifier to wall.
7. Push small burr of tee into loose end of condensate hose that was fed into cabinet in Step 6.
8. Cut midpoint of 5/8" fill hose that connects center port on fill cup to fill connection on floor of humidifier cabinet. Avoid kinks by leaving slack in fill hose for cylinder installation.
For remote-mounting the XT steam blower, see Page 43.
FIGURE 42-1: CONDENSATE TEE KIT FOR TOP-MOUNTED XT STEAM BLOWER
* Supplied with
condensate tee kit
Steam box
Two plastic ties*
Steam port
Condensate hose*
Tee*
5/8" fi ll hose
OM-7983-XT
9. Install tee in 5/8" fill hose that was cut in Step 8.
10. Install steam cylinder (see “Installing steam cylinder” on Page 12).
FIGURE 42-2: TOP- AND REMOTE-MOUNTED XT STEAM BLOWER
Mounted on top of humidifi er Mounted remotely from humidifi er
Condensate returned to steam cylinder fi ll hose
OM-7670
Condensate returned to open drain (condensate can also be returned to humidifi er fi ll cup)
One XT Series humidifi er with two XT steam blowers
OM-7698
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
42
OM-7699
Page 47
XT steam blowersDispersion:
REMOTE MOUNTING XT STEAM BLOWER
The XT steam blower is constructed with a pitch toward the drain; however, it must be installed level and plumb for proper drainage. See the Warning.
Standing water in XT steam blower
Make sure the XT steam blower is installed plumb. If it is not installed plumb, standing water can accumulate, which can:
• cause bacteria and mold growth, which can cause illness;
• affect XT steam blower performance;
• cause 212 °F (100 °C) water to discharge from the XT steam blower, which can cause severe personal injury.
Follow the instructions below for your wall type:
Mount the XT steam blower using the lag bolts provided. Follow the instructions below for mounting on a wood stud wall.
INSTALLATION
1. Mount spanner board on wall, spanning at least two studs, at top of XT steam blower cabinet (for the lag bolts).
2. Predrill pilot holes in spanner board, and secure XT stream blower to spanner board with lag bolts.
Note: Use the appropriate mounting methods and mounting hardware for
other wall types.
See Table 40-1 to determine clearance requirements for your application. Make sure walls, ceilings, and other obstructions are not within the non-wetting dimension, or condensation and dripping could occur (read Page 40). Provide at least 3" (76 mm) of clearance on each side of the XT steam blower for air intake.
INSTALLING BASE PLATE
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
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Page 48
INSTALLATION
XT steam blowersDispersion:
WIRING XT STEAM BLOWERS
Make the following wiring connections between the humidifi er and the XT steam blower, and tighten all terminals securely:
Fuses provided. See page "XT steam blowers" on page 40.
Connect XT steam blower fan wires to humidifi er terminals 32, 33, and GRD.
Refer to the external connections diagram shipped with the XT steam blower.
PIPING CONDENSATE TO HUMIDIFIER FILL CUP
1. Remove fill cup cap from XT Series humidifier, and drill a 1/2" (13 mm) hole in fill cup cap for SDU-006E and SDU-017E condensate hose as shown in Figure 44-1.
2. Route XT steam blower condensate hose through hole in fill cup cap, and secure condensate hose in place.
Note: Make sure condensate hose has a water seal, as shown in Figure
44-2. The water seal is required to ensure condensate drainage from the XT steam blower and to keep steam from blowing out of the condensate hose.
PIPING CONDENSATE TO DRAIN
The XT steam blower condensate hose must be routed as shown in Figure 44-2. The water seal is required to ensure condensate drainage from the XT steam blower and to keep steam from blowing out of the condensate hose.
FIGURE 44-1: PIPING CONDENSATE TO HUMIDIFIER FILL CUP
Field-installed hole in fi ll cup cap for remote XT steam blower
Approximate cap orientation to front of XT Series humidifi er cabinet
Drill hole here for XT steam blower condensate hose
FIGURE 44-2: PIPING CONDENSATE TO DRAIN
OM-7636X
SDU-017E shown
After the water seal, run the condensate hose to an open drain. Cut the hose at a 45 degree angle on the end above the drain to permit a direct stream of water into the drain while maintaining an air gap.
The condensate hose must be installed and sized according to governing codes.
ADDITIONAL INSTRUCTIONS
See instructions for piping from XT Series humidifi er to XT steam blower on pages 15 and 16.
OM-7687
Condensate hose
Plastic tie
1” (25 mm) air gap
Note: Shown with condensate to open drain. Condensate can also be returned to fi ll cup through fi eld-installed hole in fi ll cup cap. See Figure 44-1.
7” (178 mm) water seal
Spill funnel (plumb to fl oor drain)
Open fl oor drain. Refer to governing codes for drain pipe size and maximum temperature requirements.
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Principle of operation
1. CONTROLLER RECEIVES A CALL FOR HUMIDITY
When the RH level in the humidifi ed space drops below set point, the humidifi er controller
receives a call for humidity and calculates a corresponding electrical current. The controller closes the contactor, which energizes the electrodes. If there is not enough water in the steam cylinder, the fi ll valve opens and water enters the steam cylinder.
2. ENERGIZED ELECTRODES BOIL WATER INTO STEAM
When the water level in the steam cylinder rises to touch the electrodes, electrical current fl ows
through the water between the electrodes. Electrical resistance in the water causes the water to heat up and boil into steam. The steam fl ows through the steam outlet and through steam hose or tubing to the XT steam blower or dispersion assembly, where it is discharged into the airstream.
3. ELECTRICAL CURRENT INCREASES TO MEET DEMAND
As the amount of water covering the electrodes increases, current fl ow increases. The fi ll valve
remains open until the amperage increases to 10 percent above the current corresponding to the demand signal. Then the fi ll valve closes, and the water boils into steam.
4. WATER CONTINUES TO BOIL INTO STEAM
As the water boils into steam, the amount of water covering the electrodes decreases,
and current fl ow decreases. When current fl ow decreases to 10 percent below the current corresponding to the demand signal, the fi ll valve opens to increase the water level in the steam cylinder, which increases current fl ow and steam production.
OPERATION
5. CONTROLLER INITIATES DRAIN/FILL CYCLES TO FLUSH CONDUCTIVE IONS
As steam production continues, the concentration of conductive ions in the water increases,
eventually leading to increased electrical current through the water. An algorithm monitors water conductivity and auto tunes drain and fi ll cycles to keep electrical current within demand parameters. This optimizes humidifi er performance based on water conditions and steam production.
The humidifi er has user-selectable drain water tempering. When drain water tempering is
selected, drain water is automatically cooled before entering the drain.
WATER CONDUCTIVITY
In electrode humidifi ers, steam output is directly related to the resistance of the water in the steam cylinder and, therefore, the conductivity of the water between the electrodes. Higher water levels cover more electrode surface and result in more steam; lower water levels cover less electrode surface and result in less steam. 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.
DRAIN AND FILL CYCLES
As the water in the cylinder boils into steam, the concentration of conductive ions increases until it reaches a threshold that triggers a drain and fi ll cycle. This rids the cylinder of highly conductive water and replaces it with less conductive fi ll water. The more conductive the fi ll water and the higher the demand, the more quickly the threshold is reached, and the more frequently the cylinder automatically drains and fi lls to stay within the parameters for proper steam output.
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OPERATION
Principle of operation
FIGURE 46-1: XT SERIES HUMIDIFIER PRINCIPLE OF OPERATION
4
1
2
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.
If the current rating exceeds 120% of nominal current, the drain valve opens automatically. As the water level drops, the current rating drops back to the nominal value.
If the current rating exceeds 120% of the nominal current after several drainage operations, the humidifi er shuts down automatically.
5
(supply water
connection)
3
5
(drain)
Overfl ow
OM-7661X
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Page 51
Start-up checklist
Your humidifi cation system may not have all of the options listed below. If an item does not apply to your system, skip to the next item.
OPERATION
Verify that humidifi er, controls, piping, electrical connections, steam supply,
and dispersion units(s) are installed according to installation instructions in this manual and:
• Ladder style wiring diagram and external connections wiring diagram (inside humidifi er cabinet)
• Governing codes
• Vapor-logic Installation and Operation Manual – Installation section – Pre-installation checklist
Electric shock hazard
Contact with energized circuits can cause property damage, severe personal injury or death as a result of electrical shock or fi re.
Make sure cabinet doors are installed before turning on electrical power.
For proper operation of safety interlock switch, install electrical-side door fi rst, then install cylinder-side door.
Verify that fi eld wiring is done per instructions in this manual and per unit
wiring diagram.
Confi rm that proper grounding and an approved earth ground are provided.
Confi rm that instructions in the Electric shock hazard warning have been followed.
Confi rm that water fi ll line was thoroughly fl ushed before it was connected to the humidifi er.
Verify that humidifi er is mounted level and securely supported before fi lling with water. See
operating weights in Table 6-1.
Make sure cylinder is fully seated into drain valve, and verify that all electrical connections are
secure.
Turn water supply on (do not use demineralized, deionized, or reverse-osmosis water) and
confi rm that drain valve is closed.
If the force of air exiting water supply lines blows fi ll cup cap off during fi rst fi ll cycle, this is not
a sign of defect or a cause for concern; simply replace fi ll cup cap after all air has exited water line.
Verify that humidifi er is level and plumb when fi lled with water.
Turn power on and confi rm that Model XTP keypad/display illuminates.
Confi rm that airfl ow switch is closed.
If you choose not to use airfl ow switch: Jumper AFsw and 24vac terminals
If you choose not to use on-off duct high limit: Jumper 21vdc and DHL terminals
Confi rm that high limit humidistat input is closed or that variable air volume (VAV) control system
high limit transmitter is connected.
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.
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OPERATION
Model XTP
START-UP PROCEDURE
After the Model XTP humidifi er is installed and connected properly:
1. Perform all applicable “Start-up checklist” items on Page 47.
2. Read and follow the instructions in the “Operation” section of the Vapor-logic Installation and Operation Manual.
3. Note: During start-up, do not leave the humidifier unattended.
4. Monitor humidifier operation through multiple drain and fill cycles.
5. Perform the cleaning procedure as follows: a. Operate humidifi er long enough for steam to be produced. b. Using the keypad/display:
– At the Main menu, select Tank Status, and press Enter. – Select Mode, and press Enter. – Select Drain, and press Enter. – Let steam cylinder drain for 5 to 10 minutes until empty.
c. Restart the humidifi er, and repeat Steps a and b.
CAPACITY LIMITATION
Model XTP humidifi er capacity can be limited to a user-specifi ed maximum using the keypad/display or Web interface. From the Main menu, select Tank
Setup, then select Capacity Adjustment for menu options.
Electric shock hazard
Only qualifi ed electrical personnel should perform start-up procedure.
Contact with energized circuits can cause property damage, severe personal injury or death as a result of electrical shock or fi re.
Make sure cabinet doors are installed before turning on electrical power.
For proper operation of safety interlock switch, install electrical-side door fi rst, then install cylinder-side door.
The Vapor-logic In stal la tion and Op er a tion Man u al is a comprehensive operation manual. Refer to it for information regarding the following features:
• Keypad/display and Web interface setup and menu information
• 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
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MAINTENANCE
Maintenance:
SCHEDULED MAINTENANCE
At 1000-hour intervals or when “Service interval reached” appears in the Messages Log, inspect the steam cylinder, fi ll and drain valves, steam hose, condensate piping, water supply piping, drain piping, drain, and all other parts for proper operation and cleaning requirements. Verify proper operation of the high limit humidistat, relays, and airfl ow proving switch.
STEAM CYLINDER SERVICE LIFE
Steam cylinder service life depends on operating hours and water hardness. If “Check cylinder” appears in the Messages Log during and shortly after start-up, the message can be cleared and will stop repeating after a few drain and fi ll cycles.
When “Check cylinder” appears in the Messages Log
Shutdown and cool-down procedures
Shutdown procedure
To prevent severe personal injury or death from electrical shock, follow this shutdown procedure before performing service or maintenance procedures on this humidifi er (after cylinder is drained and cooled):
1. Use Vapor-logic keypad/display to drain cylinder.
2. Use Vapor-logic controller keypad/display to change control mode to Standby.
3. Shut off all electrical power to humidifi er using fi eld­installed fused disconnect, and lock all power disconnect switches in OFF position.
Note: Two-cylinder XT Series humidifi ers have two power
supply connections.
4. Close fi eld-installed manual water supply shut-off valve.
after extended operation, the humidifi er will continue to run, but the cylinder must be replaced to ensure optimum output. Sure signs that a cylinder needs to be replaced are when it is approximately one-third full of minerals, or minerals have bridged between electrodes.
To replace the steam cylinder, fi rst follow the cool-down procedure below.
COOL-DOWN PROCEDURE
1. In Vapor-logic keypad/display Main menu, select Tank Status, and press Enter.
2. Select Mode, and press Enter.
3. Select Drain, and press Enter.
4. Let steam cylinder drain for 5 to 10 minutes (drain water is automatically tempered when drain water tempering is selected).
5. Close field-installed manual supply water shut-off valve, and allow cylinder to continue draining.
Hot water system
Cylinder and any undrained water may be hot. To avoid injury from hot water, follow the cool-down procedure before proceeding with maintenance.
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MAINTENANCE
Maintenance:
Replacing steam cylinder
1. When steam cylinder is completely empty, turn humidifier off. Place all power disconnects in OFF position, and lock in OFF position.
2. Remove cabinet doors, and make sure cylinder and humidifier components have cooled.
3. Carefully pull the electrode plugs straight up off the cylinder to ensure no damage to the plug boot occurs.
4. Inspect cylinder plugs. Obtain replacement plugs from DriSteem if deterioration, corrosion or loose fit occur.
5. Disconnect the high water sensor wire.
Note: Because of tight clearances, perform Steps 6 through 7 only if
servicing Model XTP 002 through 017 with top-mounted steam blower. For all other models, skip to Step 8.
6. Remove both clamps on steam hose that connects to cylinder and steam blower.
7. Slide steam hose from Step 6 all the way up until it is tight against bottom of steam blower. Skip to Step 9.
8. Loosen steam hose clamp, and disconnect steam hose from cylinder.
Note:
DriSteem recommends keeping a spare steam cylinder in stock during the humidifi cation season. See “Replacement parts" on Pages 57 and 59.
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.
9. Place hands palms-down below cylinder on both sides of drain outlet.
10. Press up against bottom of cylinder with backs of hands while pressing down against cabinet floor with fingers.
11. Raise cylinder until drain outlet clears drain valve body and the side tabs on the cylinder have cleared the cylinder guides. Remove cylinder from cabinet.
12. Vacuum scale and debris out of drain valve port.
Note: For more thorough cleaning, see drain valve maintenance instructions
on Page 51.
13. Replace O-ring in drain valve body (new cylinder ships with new O-ring).
Make sure O-ring is correctly placed.
14. Dampen O-ring seals with water before replacing cylinder. Do not use
lubricant or other substance.
15. Install new steam cylinder. See “Installing steam cylinder” on Page 12.
16. Connect steam hose to cylinder, and re-install hose clamp.
17. Connect high water sensor (yellow) wire to single pin surrounded by plastic shoulder on cylinder.
18. Connect electrode wires to pins on top of cylinder. Make sure all plugs fit snugly and are fully engaged on pins.
Important: Three phase cylinders have color-coded dots on the cylinder
and color bands on the electrode plugs. When connecting the plugs, match the band colors on the plugs with the dot colors on the cylinder. Refer to the wiring diagram shipped with the humidifi er if necessary.
If returning humidifi er to operation, see the start-up procedure on page 48.
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MAINTENANCE
Maintenance:
DRAIN VALVE
Drain valve
If either of the following issues occur after several months of runtime, follow the drain valve maintenance procedures below.
• Drain valve is closed, but draining and fi lling continue.
• End of cylinder life prompt appears prematurely.
DRAIN VALVE BODY MAINTENANCE
1. When steam cylinder is empty, turn humidifier off. Place all power disconnects in OFF position, and lock in OFF position. See Figure 51-1.
2. Remove cabinet doors and steam cylinder (see Page 10).
3. Vacuum loose scale and debris out of the drain valve port.
4. Disconnect 2-pin Molex plug from 24 VAC drain valve coil.
5. Slide cap (A) off of drain valve coil (C).
6. Turn hex nut (B) counter-clockwise. Loctite on nut will cause drain valve coil assembly to turn out of drain valve body (G). Remove coil/actuator assembly from drain valve body. Make sure spring (E) and plunger (F) do not fall out of actuator (D).
7. Clean plunger (F), spring (E), actuator (D), and plastic drain valve body (G) with clean water.
8. Reassemble drain valve. When threading actuator (D) into drain valve body (G), make sure it is not cross threaded. Torque actuator into drain valve body to 18 in-lb (2.0 N·m).
FIGURE 51-1: DRAIN VALVE ASSEMBLY
Drain valve body
Drain valve coil
Drain cup plate
Insert
Ground plate
Drain cup
Notes:
• Pay close attention to all parts shown above. Verify that ground plate is in groove of drain cup, and insert is in place through ground plate loop.
• Failure to get ground plate and insert solidly connected to frame will compromise ground safety circuit.
O-ring
OM-7630
9. Plug Molex plug into its mating wire harness plug, and slide cap (A) onto drain valve coil (C).
10. See “Start-up procedure” on Page 48 if returning humidifier to operation.
Note: If the procedure above did not resolve drain valve issues, perform the
drain valve assembly maintenance procedure on Page 52.
FIGURE 51-2: DRAIN VALVE BODY
Drain valve body (G)
Plunger (F)
Spring (E)
Drain valve coil (C) Actuator (D) Torque to 18 in-lb (2.0 N·m)
Wires to Molex plug
Nut (B)
Cap (A)
OM-7631
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MAINTENANCE
Troubleshooting
DRAIN VALVE ASSEMBLY MAINTENANCE
Perform the following procedure only if the procedure on Page 51 does not resolve drain valve issues. See Figure 51-2.
1. Perform Steps 1 through 4 on Page 51.
2. Remove the three screws and washers securing drain cup plate to drain cup.
3. Lift drain valve body/plate assembly off of drain cup.
4. Vacuum loose scale and debris out of drain cup.
5. Remove ground plate, and clean scale and debris from ground plate and outlet of drain valve body.
6. Reassemble drain valve assembly: Fit mounting screws with washers, insert them through drain cup plate, and tighten them into drain cup. See notes in Figure 51-2.
7. Clean end of hose, and reconnect it to drain valve body with hose clamp. Plug Molex plug into its mating wire harness plug.
8. See “Start-up procedure” on Page 48 if returning humidifier to operation.
MODEL XTP TROUBLESHOOTING
Follow the procedure below to resolve issues with Model XTP humidifi ers:
DriSteem Technical Support
Have the following information ready when calling Technical Support. See phone number inside front cover of this manual.
Humidifi er model number
_______________________________
Humidifi er serial number
_______________________________
When issue began
_______________________________
_______________________________
_______________________________
Issue description
_______________________________
1. Review possible causes and recommended actions in Table 54-1.
2. Follow the Test mode procedure beginning on Page 56.
The Test mode procedure is intended to check the general function of Model
XTP humidifi ers and components, and to help diagnose and resolve general operational problems.
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 er and steam blower)
• Issue description Example: water leaking, low humidity, high humidity, etc.
• When issue began Example: After maintenance, cylinder replacement, etc.
• System changes Example: Pressure, new service, new controller, relocation, change in
maintenance, etc.
_______________________________
_______________________________
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Troubleshooting
Table 53-1: Model XTP humidifier troubleshooting guide
Problem Possible cause Action
Check L1, N/L2 and Ground connections.
Humidifi er will not turn on
Steam light does not turn on.
Water constantly runs down drain.
Water is leaking from humidifi er.
Humidifi er makes gurgling sound.
Fill valve makes banging sound.
Humidifi er will not fi ll.
Humidifi er will not drain.
Field-wired terminal connections
Internal connections
No power to humidifi er
Humidifi er not turned on Make sure front cover is attached to engage safety interlock switch. Press On-off button.
No power to 24V control circuit
Call for humidity not being received
Malfunctioning drain valve. Check valve function using Test Mode.
Debris in drain valve preventing it from closing
O-ring in drain valve not properly seated in groove
Water fl owing from fi ll cup overfl ow port
Loose plumbing connections
Excess condensate in steam hose
Water hammer from line pressure
Field-installed supply water shut­off valve not open
Malfunctioning fi ll valve Check valve function using Test mode.
Debris in drain valve blocking outlet port
Malfunctioning drain valve Check valve function using Test mode.
Check wiring connections and settings on accessory items such as high limit switch and airfl ow proving switch.
Follow the shutdown procedure on Page 50, then make sure electrode and high water probe connections on top of cylinder are securely connected.
Make sure ribbon cable from membrane switch is securely plugged into control circuit board.
Check that terminals from internal components are securely attached to proper tabs on circuit boards.
Make sure one of the electrode wires extends through toroid ring on current sensing circuit board.
Check main power supply and switch.
Check for proper voltage across L1 and N/L2 terminals.
Make sure ribbon cable from membrane switch is securely plugged into control circuit board.
Check reset switch on transformer.
Check that the transformer line fuses (2) are in place and conductive.
Check wiring and settings of high RH limit switch and airfl ow proving switch.
Remove cylinder, and clean debris from drain valve.
Remove cylinder, and reposition O-ring.
Check internal hoses, and remove kinks or blockage.
Check supply water connection at fi ll valve inlet. Tighten as needed.
Check internal hose clamp connections. Reposition clamps and tighten as needed.
Check steam hose connection on top of cylinder. Tighten clamp as needed.
Make sure steam hose has constant downward slope to humidifi er or to tees and traps in low spots of hose.
Make sure water supply line does not contact ductwork.
Install shock arrestor.
Install section of 1/4" braided fi ll line. Conform to governing codes.
Open valve.
Remove cylinder and clean debris from drain valve.
MAINTENANCE
Continued
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MAINTENANCE
Troubleshooting
Table 53-1: Model XTP humidifier troubleshooting guide (continued)
Problem Possible cause Action
Dispersion tube installed
Water in duct from dispersion tube.
Service light fl ashing red before end of humidifi cation season.
incorrectly
Impurities in steam hose or tubing causing foaming
Cylinder full of mineral deposits
Install dispersion tube with tubelets facing straight up.
Rinse cylinder and hose in clean water.
Plumb humidifi er to fi ltered water.
Plumb humidifi er to softened water.
Steam light is yellow.
Humidifi er is not satisfying demand.
Excess humidity.
Humidifi er operating below rated capacity
Notes:
• This is normal for systems plumbed to low-conductivity water and systems that operate for short cycles.
• XT Series humidifi er recommended fi ll water conductivity is 125 to 1250 μS/cm.
Control setting too low Adjust control to higher setting.
Control mounted in wrong location
Control setting too high Adjust control to lower setting.
Control mounted in wrong location
Plumb humidifi er to softened water.
To determine operating current, attach clamp-on ammeter to one of the electrode wires on top of cylinder.
Add add 1/4 to 1/2 tab sodium bicarbonate (i.e., Alka Seltzer) to water in cylinder increase water conductivity. Consult DriSteem for further advice.
See installation instructions with control for correct mounting location.
See installation instructions with control for correct mounting location.
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Troubleshooting
MAINTENANCE
MODEL XTP TROUBLESHOOTING
Follow the procedure below to resolve issues with Model XTP humidifi ers:
1. Review possible causes and recommended actions in the Troubleshooting guide in the Vapor-logic In stal la tion and Op er a tion Man u al.
2. If the Troubleshooting guide does not help you solve the issue, call DriSteem with the following information available:
• Humidifi er model number, serial number, and fi rmware version (see
nameplate on side of the humidifi er and steam blower)
To access fi rmware version: Keypad/display: Select Diagnostics in the Main menu, select Humidifi er
info, scroll down to Firmware version.
Web interface: Click Diagnostics in the toolbar, click Humidifi er info, see
Firmware version below.
• When issue began Example: Always, after remodel, after a change in weather, etc.
• Issue description Example: water leaking, low humidity, high humidity, etc.
• System changes Example: Pressure, new service, new controller, relocation, change in
maintenance, etc.
DriSteem Technical Support
Have the following information ready when calling Technical Support. See phone number inside front cover of this manual.
Humidifi er model number
_______________________________
Humidifi er serial number
_______________________________
Firmware version
_______________________________
When issue began
_______________________________
_______________________________
_______________________________
Issue description
_______________________________
_______________________________
_______________________________
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MAINTENANCE
Replacement parts
FIGURE 56-1: MODELS XTP 002 THROUGH 048 REPLACEMENT PARTS
OM-7985
Subpanel
SDU option
XT SERIES INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
56
OM-7703
Euro subpanel
OM-8002
Page 61
Replacement parts
Table 57-1: Models XTP 002 through 048 replacement parts
Item Description Part No.
Transformer, 120V, 24V SEC - QC 408965-101
Transformer, 208/240/480V, 24V SEC - QC 408965-102
1
Transformer, 277V, 24V SEC - QC 408982-101
Transformer, 600V, 24V SEC - QC 408986-101
Transformer, 230/400, 24V SEC - QC 408985-101
2 Contactor 407010-*
3 Plug, high water sensor 530010-105
MAINTENANCE
Board, current sensing, 208/230/240/277 V (Model XTP 002)
Board, current sensing, 400/480 V 530013-002
4
Board, current sensing, 600 V 530013-003
Board, current sensing, 208/230/240/277/400 V 530013-004
5 Display board, Vapor-logic controller 408495-004
6 Main board, Vapor-logic controller 183504-004
7 Kit, electrode wiring (plugs/wires: 1 red, 1 black, 1 white) 194625-001
8* Kit, cylinder 194601-*
9 Strainer, cylinder 531006
10 Drain valve assembly (see parts in Figure 51-1) 194610-001
Fill valve assembly Models XTP 002 and 017 194623-001
11
Fill valve assembly Models XTP 025 through 096 194623-002
12 Kit, fi ll cup extension (see parts in Figure 11-1) 194605-101
13 Fuse 2A 600V ATM 406740-014
14 Switch interlock with override 530010-102
Fuse 40A 480V AG (XTP 042, 480 volt only) 406720-040
15
Fuse 50A 480V AG (XTP 048, 480 volt only) 406720-050
530013-001
16 Switch auxiliary GE ECLA211S 407001-024
See cylinder Part No. on your XT Series humidifi er.
*
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MAINTENANCE
Replacement parts
FIGURE 58-1: MODELS XTP 050 THROUGH 096 REPLACEMENT PARTS
Subpanel
OM-7704
Euro Subpanel
OM-7705
OM-8003
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Replacement parts
Table 59-1: Models XTP 050 through 096 replacement parts
Item Description Part No.
Transformer, 120V, 24V SEC - QC 408965-101
Transformer, 208/240/480V, 24V SEC - QC 408965-102
1
Transformer, 277V, 24V SEC - QC 408982-101
Transformer, 600V, 24V SEC - QC 408986-101
Transformer, 230/400, 24V SEC - QC 408985-101
2 Contactor 407010-*
3 Plug, high water sensor 530010-105
Board, current sensing, 400/480 V 530013-002
Board, current sensing, 600 V 530013-003
4
Board, current sensing, 208/230/240/277/400 V 530013-004
MAINTENANCE
Board, current sensing, 230/400 V (Model XTP096 only) 530013-005
5 Display board, Vapor-logic controller 408495-004
6 Main board, Vapor-logic controller 183504-014
Kit, electrode wiring (plugs with wires: 1 red, 1 black, 1 white)
7
Kit, electrode wiring, extended (plugs with wires: 1 red, 1 black, 1 white)
Kit, cylinder, XT-75/150, XT-025/050, 380V, 3P 194601-023
Kit, cylinder, XT-75/150, XT-025/050, 400-600V, 3P 194601-025
8*
Kit, cylinder, XT-100/200, XT-033-096, 380/400V, 3P 194601-026
Kit, cylinder, XT-100/200, XT-033-096, 480/600V, 3P 194601-028
9 Strainer, cylinder 531006
10 Drain valve assembly (see parts in Figure 51-1) 194610-001
11 Fill valve assembly Models XTP 025 through 096 194623-002
12 Kit, fi ll cup extension (see parts in Figure 11-1) 194605-101
13 Fuse 2A 600V ATM 406740-014
14 Switch interlock with override 530010-102
Fuse 40A 480V AG (XTP 083, 480 volt only) 406720-040
15
Fuse 50A 480V AG (XTP 096, 480 volt only) 406720-050
194625-001
194625-002
16 Switch auxiliary GE ECLA211S 407001-024
See cylinder Part No. on your XT Series humidifi er.
*
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MAINTENANCE
Replacement parts
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
1
Fan, SDU-006E, 230V 407109-102
Fan, SDU-017E, 120V 306376
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Accessories
Table 61-1: Accessories
Description Part No.
Steam hose, 1" (DN25) x 10' (3 m), for remote XT steam blower 305400-100
Steam hose, 1½" (DN40) x 10' (3 m), wire-reinforced 305400-010
Steam hose, 2" (DN50) x 10' (3 m), wire-reinforced 305560-0010
Condensate hose, 1/4" (DN8) x 13' (4 m), for remote XT steam blower 305400-150
Drain hose cuff, 1" (DN25) I.D. x 12" (305 mm) long 305389-012
Hose clamp, 1" (DN25) I.D. 700560-100
Hose clamp, 23 mm, spring band 700560-023
Hose clamp, 19 mm, spring band 700560-019
Hose clamp, 1½" (DN40) I.D. 700560-150
Hose clamp, 2" (DN50) I.D. 700560-200
Kit, drip tee, 304 stainless steel, 1½" (DN40) 191071-001
Humidistat, duct high limit, HC-201 405850-201
Humidistat, room, HC-101 405870
Humidity transmitter, duct, 2% RH DSB 405884-009
Humidity transmitter, room, 2% RH 405883-008
Switch, airfl ow, AFS-112-150, electric 406190
Kit, Y connector; Models XTP 033, 042, and 048 (see Figure 24-1)
• 1 Y connector, stainless steel, 1½" x 2" (DN40 x DN50)
191070-101• 2 steam hoses, 1½"(DN40), 12" (305 mm) long
• 4 hose clamps
Kit, Y/tube connectors; Models XTP067 through 096 (see Figure 24-1)
• 2 Y connector kits 191070-101
• 1 fl anged tube connector, stainless steel, 3" (DN80) 162825-202F
Kit, tube connector; Model XTP050 (see Figure 24-1)
• 1 tube connector, stainless steel, 1½" x 2" (DN40 x DN50)
191070-002• 1 hose cuff, 2" (DN50), 6" (152 mm) long
• 2 hose clamps
Kit, tube reducer; Models XTP 002 through 006 (see Figure 23-1)
• 1 tube reducer, stainless steel, 1" x 1½" (DN25 x DN40)
191070-100• 1 steam hose, 1" (DN25), 12" (305 mm) long
• 2 hose clamps
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)
191070-102• 1 steam hose, 1.5" (DN40), 12" (305 mm) long
• 2 hose clamps
MAINTENANCE
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Notes
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Notes
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W
ARRANTY
Expect quality from the industry leader
For more than 45 years, DriSteem has been leading the industry with creative and reliable humidifi cation solutions. Our focus on quality is evident in the construction of the XT Series humidifi er. DriSteem also leads the industry with a Two-year Limited Warranty and optional extended warranty.
For more information
www.dristeem.com sales@dristeem.com
For the most recent product information visit our Web site: www.dristeem.com
DRI-STEEM Corporation
a subsidiary of Research Products Corporation DriSteem U.S. operations are ISO 9001:2015 certifi ed
U.S. Headquarters: 14949 Technology Drive Eden Prairie, MN 55344 800-328-4447 or 952-949-2415 952-229-3200 (fax)
TWO-YEAR LIMITED WARRANTY
DRI-STEEM Corporation (“DriSteem”) warrants to the original user that its products will be free from defects in materials and workmanship for a period of two (2) years after installation or twenty­seven (27) months from the date DriSteem ships such product, whichever date is the earlier. If any DriSteem product is found to be defective in material or workmanship during the applicable warranty period, DriSteem’s entire liability, and the purchaser’s sole and exclusive remedy, shall be the repair or replacement of the defective product, or the refund of the purchase price, at DriSteem’s election. DriSteem shall not be liable for any costs or expenses, whether direct or indirect, associated with the installation, removal or reinstallation of any defective product. The Limited Warranty does not include cylinder replacement for electrode steam humidifi ers or media replacement for Wetted Media Systems.
DriSteem’s Limited Warranty shall not be effective or actionable unless there is compliance with all installation and operating instructions furnished by DriSteem, or if the products have been 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. Defective parts may be required to be returned to DriSteem. Excluded from the Limited Warranty are all consumable and wear and tear items such as cylinders, membranes, fi lters, or media replacements. These items are subject to usual wear and tear during usage.
DriSteem’s Limited Warranty is made in lieu of, and DriSteem disclaims all other warranties, whether express or implied, including but not limited to any IMPLIED WARRANTY OF MERCHANTABILITY, ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, any implied warranty arising out of a course of dealing or of performance, custom or usage of trade. DriSteem SHALL NOT, UNDER ANY CIRCUMSTANCES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS, REVENUE OR BUSINESS) OR DAMAGE OR INJURY TO PERSONS OR PROPERTY IN ANY 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 DriSteem has notice of the possibility of such damages.
By purchasing DriSteem’s products, the purchaser agrees to the terms and conditions of this Limited Warranty.
European offi ce: Marc Briers Grote Hellekensstraat 54 b B-3520 Zonhoven Belgium +3211823595 (voice) +3211817948 (fax) E-mail: marc.briers@dristeem.com
Continuous product improvement is a policy of DriSteem Corporation; therefore, product features and specifi cations are subject to change without notice.
DriSteem, Rapid-sorb, Ultra-sorb, Vapor-logic are registered trademarks of Research Products Corporation and are fi led for trademark registration in Canada and the European community.
Product and corporate names used in this document may be trademarks or registered trademarks. They are used for explanation only without intent to infringe.
© 2018 Research Products Corporation
EXTENDED WARRANTY
The original user may extend the term of the DriSteem Limited Warranty for a limited number of months past the initial applicable warranty period and term provided in the fi rst paragraph of this Limited Warranty. All the terms and conditions of the Limited Warranty during the initial applicable warranty period and term shall apply during any extended term. An extended warranty term of an additional twelve (12) months or twenty four (24) months of coverage may be purchased. The extended warranty term may be purchased until eighteen (18) months after the product is shipped, after which time no extended warranties are available. When a Dristeem humidifi er is purchased with a DriSteem RO system, an extended twenty-four (24) month coverage is included.
Any extension of the Limited Warranty under this program must be in writing, signed by DriSteem, and paid for in full by the purchaser.
Form No. XT-IOM-EN-1218 Part No. 890000-139 Rev H
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