Ultra-sorbXV_IOM
Ultra-sorb® Model XV
S te am D ispe rsion Pan e l
Ins tal l ati o n, Op eration ,
and Mai ntenance Man u al
For pressurized steam applications
5B C M F P G D P O U F O U T
WARNING!
Steam humidification systems have
extremely hot surfaces.
To avoid burns, allow humidifier,
steam pipes, and dispersion
assemblies to cool before touching
any part of the system.
ATTENTION INSTALLER
Read this manual before installing.
Leave manual with product owner.
DRI-STEEM technical support
800-328-4447
Field assembly
Unpack the dispersion assembly and loose components . . . . . . . . .
Verify that the order is complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lay out the panel components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attach the flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attach the top frame assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tighten the flange locknuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install the dispersion tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
4
4
4
4
4
Installation
Selecting the location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation in a cold air stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Placement upstream of an elbow or duct split . . . . . . . . . . . . . . . . . . 7
Installation above valuable equipment . . . . . . . . . . . . . . . . . . . . . . . . 7
Recirculation unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Panel support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Duct smoke detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dispersion tube orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting in a duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting in an air handling unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Control cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Trap recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Recommendations for steam absorption . . . . . . . . . . . . . . . . . . . . . 10
Steam and condensate connections . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Header overflow P-trap water seal . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lifting condensate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Temperature switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heat exchanger shut-off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Start-up
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Performance data
Steam capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Non-wetting distance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance
Strainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Header overflow P-trap water seal . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dispersion tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
15
15
15
15
16
Replacement parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .back cover
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Unpack the dispersion assembly and loose components
Integral heat exchanger
t U
ltra-sorb Model XV has high-efficiency dispersion tubes.
The tubes are insulated with polyvinylidene fluoride (PVDF)
insulation, which provides up to an 85% reduction in wasted
energy by significantly reducing airstream heat gain and
condensate production.
t6MUSBTPSC.PEFM97FNQMPZTBOJOUFHSBM
heat exchanger to pressurize and lift
condensate up to 12" per psi (300 mm
per 6.9 kPa) of steam pressure.
t 3
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careful not to bump or scrape the white PVDF dispersion tube
insulation.
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material for flange support during shipping. Remove this wood
before installing the panel.
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exchanger must be at least 5 psig
(35 kPa).
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condensate return main.
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shipping necessity) across or under anything that could compress
or damage the insulation. Compressing insulating material may
reduce its R-value.
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PVDF is robust, rough handling can cause tears, which could
negatively impact performance.
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perforation. Do not use a knife or sharp object to remove the poly
film. Do not remove the white PVDF insulation.
Verify that the order is complete
Verify that all panel and piping components are included in the
delivery. Check the packing list, and see Tables 4-1 and 5-1.
CAUTION!
The dispersion tubes are sleeved in clear poly film
for protection during processing, shipping, and
installation.
t ,
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material to avoid damage.
Leave the clear poly film on until installation is
complete so the insulation stays clean.
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germicidal lamps will not cause the
insulating material to degrade.
Equally important, remove and discard the clear
poly film before start-up by tearing it along the
perforations. Do not remove the white PVDF
insulation.
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fasteners to any part of the dispersion
tube.
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Note: These assembly instructions are for
6MUSBTPSC.PEFM97QBOFMTTIJQQFE
unassembled by request or as required.
Panels with overall height more than
98" (2490 mm) are shipped unassembled.
Lay out the panel components
Orient the panel components on a large, flat working surface.
Attach the flanges
Guide the flanges onto the threaded studs of the header assembly,
and start the locknuts onto the threads finger-tight.
Attach the top frame assembly
Span the flanges with the top frame assembly. Align the locating
buttons on the flanges and top frame, and push the eight panel
fasteners into place.
Table 4-1:
Model XV panel components
Component
Qty.
Header assembly
1
Dispersion tube
7BSJFT
Top frame assembly
1
'MBOHFT
2
Panel fasteners
8
'MBOHFMPDLOVUT
8
Note: Compress the toggles to remove a panel fastener.
Tighten the flange locknuts
Torque the eight flange locknuts to 16 ft-lb (22 N-m) at 100 rpm
maximum using a 7/16" deep-well socket.
Install the dispersion tubes
Note: Do not remove the poly film from the dispersion tubes until
after the panel is installed.
Ensure that each dispersion tube has the seal and spring in place (see
Figure 5-2). Push the dispersion tube plug end into the top frame
hole to compress the spring. Seat the seal end in the corresponding
header hole on the bottom. Rotate the dispersion tubes so the
tubelets discharge steam perpendicular to the airstream. See
Figure 8-3.
Figure 4-1:
Model XV components
Panel fastener
Top frame
assembly
Spring
Plug
Insulation
'MBOHF
Dispersion
tube
assembly
Ring
Seal
'MBOHF
locknut
Header
assembly
0.
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The Ultra-sorb Model XV dispersion panel and piping components
are shown in Figure 5-1.
Panel location choices, installation instructions, and system options
are provided in the following subsections.
Figure 5-1:
Ultra-sorb Model XV piping components
Standard Method
.PEFM97TUFBNEJTQFSTJPOQBOFM
.PEVMBUJOHTUFBNvalve
'SPNQSFTTVSJ[FE
steam source
Temperature
switch (locate as
close to outlet as
possible)
Inlet strainer
Table 5-1:
Replacement components
Description
Part No.
.PEVMBUJOHTUFBNWBMWF
consult factory
On/off valve body
501750-001
On/off valve coil
501700-002
Electric temperature switch
400260-001
Pneumatic temperature switch
307076
Inlet strainer
consult factory
Steam trap
consult factory
Time Delay Relay
407900-020
Time Delay Base
407900-016
Figure 5-2:
Ultra-sorb Model XV piping components
Alternative method for minimal
trap clearance
On/off valve
Access port
and overflow
'5USBQ
To condensate
return main
14" Trap clearance
(add 4" for optional overflow)
'5USBQ
To condensate return main
0.
'5USBQDMFBSBODF
0.
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Selecting the location
Panel placement in an air handling unit
TFF'JHVSF
DRI-STEEM has cataloged the distance unabsorbed steam travels in
an airstream (see Figure 14-1). Dispersed steam must be absorbed
into the airflow before it comes in contact with duct elbows,
fans, vanes, filters, or any object that can cause condensation and
dripping.
t Location A is the best choice.
Installing downstream of heating and cooling
coils provides laminar flow through the dispersion unit; plus, heated air provides an environment for best absorption.
A. Install the Ultra-sorb panel in a location where discharged water
vapor being will be absorbed by the airstream.
t Location B is the second-best choice.
However, in change-over periods, the cooling coil
will eliminate some moisture for humidification.
# *OHFOFSBMQMBDFUIF6MUSBTPSCQBOFMXIFSFUIFBJSUFNQFSBture is capable of absorbing discharged steam without causing
condensation at or after the unit. This will normally be downstream of the heating coil where the air is warmest.
t Location C is the third-best choice.
Air leaving a fan is usually very turbulent and
can cause vapor to not absorb at the expected
absorption distance. Allow for more absorption
distance if installing downstream of a fan.
C. Do not place the Ultra-sorb panel in an outside air intake unless
the air is tempered with a preheat coil.
D. Do not place the Ultra-sorb panel near the entrance of a
high-efficiency filter. The filter will remove visible moisture
and become waterlogged. See the CAUTION about absorption
(non-wetting) distance in the Performance data section.
t Location D is the poorest choice.
The cooler air at this location requires an
increased absorption distance.
E. Do not place the Ultra-sorb panel where discharged visible mist
will impinge directly on a metal surface.
Figure 6-1:
Placing a dispersion assembly in an AHU
'JMUFST
Economizer
control device
$PPMJOHDPJM
Heating coil
8' to 12' (2.4 to 3.7 m)
Duct high limit humidity control for dispersion
locations A, B
Airflow proving switch
Outside air
'BO
Exterior
building wall
Preheat coil
D
B
A
3' to 5'
(1 to 1.5 m)
.PUPSJ[FE
air dampers
C
8' to 12'
(2.4 to 3.7 m)
Relief air
Airflow proving switch
Duct high limit humidity control
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Return airflow
Supply airflow
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Installation in a cold air stream
When a humidifier is installed in a duct that will carry cold air,
determine the dew point temperature. If the psychrometric chart
reveals that saturation may occur, protection should be provided. A
high-limit humidistat or thermostat set to cut off the humidifier at a
safe temperature can be used for this purpose. See Figure 7-2.
Placement upstream of an elbow or duct split
Due to Ultra-sorb's rapid steam absorption performance,
installation upstream from elbows or duct splits can be done with
confidence. See Figure 7-3.
Installation above valuable equipment
Water piping and humidifiers should not be installed above
expensive equipment. A condensing or leaking water pipe or
other accidental water spillage could cause serious damage to the
equipment below. When such an installation cannot be avoided,
install a galvanized drip pan under the humidifier piping, valve, etc.
to catch and drain away unintended water. See Figure 7-4.
Figure 7-2:
Installation in a cold air stream
$PME
airflow
High-limit duct humidistat 10-15 feet
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0.
Figure 7-3:
Upstream placement
Panel support
The duct or air handler section and Ultra-sorb panel must be
properly supported to carry the weight of the assembly. The weight
of the piping must be supported by the building structure rather
than by the Ultra-sorb unit. Otherwise, the weight may impose
stress on the connections, causing them to fracture and leak.
Airflow
6MUSBTPSC
6MUSBTPSC
Non-wetting
distance from
'JHVSF
Airflow
Duct split
0.
Figure 7-4:
Installation above sensitive areas
6MUSBTPSC
Airflow
Drip pan
Pipe to drain size as required
Figure 7-1:
Recirculation unit
*
7BQPS
absorption
area
2" (50 mm)
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* This duct length
should have sealed
seams and should
be at least three
times the published
non-wetting
distance.
$FJMJOHMJOF
Airflow
Duct
Elbow
See the Header overflow P-trap water seal section.
Recirculation unit
In applications where no duct system exists, or if the air is too cool
for proper humidity absorption, a recirculation fan can be used.
The fan circulates room temperature air across the humidifier and
discharges humidified air into the space. Select the air discharge
point carefully to avoid condensation on building or equipment
surfaces. See Figure 7-1.
Extended trails of
fog may develop
6MUSBTPSC
7BQPS
absorption
area
*
6MUSBTPSC
* This duct length should have sealed seams and should
be at least three times the published non-wetting
distance.
0.
Blower
0.
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Duct smoke detector
Mounting in a duct
Do not install a duct smoke detector downstream
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installation is required, install it far enough from
UIF6MUSBTPSCQBOFMUPBWPJEGBMTFBMBSNT
To avoid puncturing the header, screw penetration into the
header assembly must not exceed ¾" (20 mm).
Dispersion tube orientation
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The spring-loaded dispersion tubes easily rotate
for proper orientation.
The Model XV panel is designed for horizontal airflows only.
Mounting flanges on both sides of the unit and the header and
frame can be used as mounting surfaces (see Figure 8-1). A
matching flange or metal frame is required on the ductwork for
connection to the Ultra-sorb flanges. The recommended fastener is
a #12 self-drilling and tapping screw ¾" (20 mm) long, spacing not
to exceed 12" (305 mm). If an angle-iron frame is provided on the
duct section, a longer screw may be required.
Figure 8-2:
Dispersion tube orientation
Figure 8-1:
Preventing header puncture
Dispersion tube
Tubelet
Attach duct flange to
top frame assembly
Airflow
Airflow
0.B
1/2" (13 mm)
No screws
4DSFXT0,
XT 0,
Attach duct flanges
to 1.5" (38 mm)
mounting flanges
Figure 8-3:
Preventing duct static pressure loss
6MUSBTPSCQBOFMTUIBUQFOFUSBUFBEVDUTFDUJPONVTUCF
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too prevent air leakage.
1/2" (13 mm)
Perimeter of top frame
along duct flange
4DSFXT0,
No screws
Top
outside corners
Both sides of
cover seam
Attach duct flange to
header assembly
Mounting in an air handling unit
Model XV must be used in pressurized steam applications and in
horizontal airflows only, as shown in Figure 9-1. Metal support
frames should be anchored to the air handler casing. Recommended
fasteners for mounting the Ultra-sorb to a metal support frame
are ¼ - 20 nuts and bolts or #12 self drilling and tapping screws.
Due to possible forces exerted on this application, DRI-STEEM
recommends fastener spacing not to exceed 6" (150 mm).
'PVSJOTJEF
corners
0.9
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Figure 9-1:
Model XV in an air handler
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$PJM XJEUI
Connection end of header
Humidification steam
inlet (1” or 2” NPT,
internal thread)
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height
Pressurized condensate outlet
(3/4” NPT, internal thread)
$PJM
height
Access port and optional overflow
(1/2” NPT, internal thread)
Pressurized boiler steam inlet
(3/4” NPT, internal thread)
Tubelets perpendicular to airflow
Humidification steam in
Header
'SPNQSFTTVSJ[FETUFBN
source, into heat exchanger
Pressurized condensate out to return main
0.9
Notes:
1.
2.
3.
Dashed lines indicate provided by installer.
Steam supply line to unit and piping are not included.
Dispersion tubes are available on 3", 6", 9" and 12" (15, 150, 225, and 300 mm) centers
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shipped unassembled by request, requiring field assembly.
5. Standard sizes are 12" x 12" up to 144" x 144" in 1" increments (305 x 305 mm up to 3660 x 3660 mm in 25 mm increments).
Larger sizes are available.
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7. .PEFM97IFBUFYDIBOHFSTSFRVJSFQTJNJOJNVNTUFBNQSFTTVSFBOENVTUCFJOTUBMMFEJOIPSJ[POUBMBJSGMPXTPOMZ
Mounting in an air handling unit
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screws. To avoid puncturing the header, screw penetration into the header assembly must not exceed 3/4" (20 mm).
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Recommendations
Figure 10-1:
Ultra-sorb strainer
Install strainer same size as valve
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t Low pressure, up to 15 psi (103 kPa) — F&T trap
High pressure, more than 15 psi (103 kPa) — Inverted bucket
trap
t 5
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steam main (not the side or bottom).
'SPNQSFTTVSJ[FE
steam source
t An airflow proving switch is recommended to prevent the steam
valve from opening if air is not moving in the duct.
t To prevent over saturation when duct air is cooler than 70 °F
(21 °C), a high-limit (duct mounted) humidistat at least 15 feet
(4.5 m) downstream and set at 80-90% is recommended.
Pressurized boiler steam inlet
Steam pressure entering the heat exchanger must be least 5 psig
(35 kPa) to vaporize condensate in the header.
Optional header overflow P-trap water seal
Ultra-sorb Model XV is designed to vaporize the condensate
generated in a properly designed, installed, operated, and
maintained system. An optional, fail-safe header overflow
installation is recommended if any of the following are true:
t 0QFSBUJOHQBSBNFUFSTFYDFFEEFTJHODSJUFSJB
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heat exchanger.
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t 5IFBQQMJDBUJPOSFRVJSFTUIFUBMMFTUEJTQFSTJPOUVCFTUIFDMPTFTU
tube spacing, and the lowest allowable heat exchanger steam
pressures.
t 0QFSBUPSJOUFSWFOUJPODPVMESFTVMUJOJNQSPQFSTZTUFNTFUUJOHT
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periods, prime the P-trap with about 1 cup (200 ml) of water.
During normal operation, little or no condensate is available to the
overflow. As such, a water seal cannot be assured via condensate
alone. Without a water seal, the header overflow P-trap, if one is
installed, may allow air to be drawn into the duct or steam to blow
through the P-trap.
Figure 11-1:
Header overflow P-trap water seal
Connection end of header
Access port and overflow
(connection for the
optional P-trap overflow
water seal)
Do not feed the P-trap with a water source to maintain prime, as
this will force water into the header.
1.25" (32 mm) rise
Temperature switch
Install the temperature switch to prevent the header from flooding
with condensate if the heat exchanger cools, such as if the
condensate return main becomes flooded or the trap fails closed.
'JMMDBQ
12" (305 mm) seal
DRI-STEEM's temperature switch prevents the header from
flooding with condensate if the heat exchanger cools by means of a
temperature-actuated make-break switch. The temperature at which
it switches is adjustable and should be set at 210 °F (99 °C).
10.75" (273 mm)
0.
After the water seal, run a 1½" (DN40) drain line
to an open drain with a 1" (25 mm) air gap.
t *OTUBMMUIFTFOTJOHFMFNFOUPGUIFEFWJDFJOUIFDPOEFOTBUFSFUVSO
piping between the Ultra-sorb heat exchanger outlet and the inlet
to the steam trap, as shown in Figures 5-1 and 5-2. Include a tee
with a ½" (DN15) pipe thread opening to receive the sensing
element. When steam surrounds the sensing element, the switch
will “make,” allowing the humidifier valve to open.
t *OTUBMMBMMXJSJOHBDDPSEJOHUPOBUJPOBMBOEMPDBMFMFDUSJDBMDPEFT
and size transformer VA to load VA.
t 8IFOVTJOHUIFUFNQFSBUVSFTXJUDIXJUIBOFMFDUSJDNPEVMBUJOH
valve, use the special wiring instructions furnished with the valve.
%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBMt1BHF
*OTUBMMBUJPO
Heat exchanger shut-off delay
To dry the header, pressurized steam can be set to flow through the
heat exchanger for a set amount of time after humidification steam
stops. This time delay can be set through the building management
TZTUFN#.4
PSDPOGJHVSFEJOEFQFOEFOUGSPNUIF#.44FFUIF
wiring diagram included with the on/off valve.
A stand alone time delay relay is available from your local
DRI-STEEM representative.
For systems that run constantly (all day, every day, all year), there is
no need for a shut-off delay.
Systems that stop humidifying for extended periods of time may
have two reasons for a heat exchanger shut-off delay: to conserve
energy and to remove standing water that might allow for microbe
growth.
Setting the heat exchanger to remain on for at least 1/2 hour after
humidifying stops will be adequate time to ensure complete dry-out
of the dispersion system.
Control cabinet
Installations employing a solenoid valve and temperature switch are
shipped with a control cabinet (Figure 12-1).
Figure 12-1:
Control cabinet for Ultra-sorb Model XV solenoid valve and
temperature switch
12" (305 mm)
12" (305 mm)
6" (152 mm)
0.
/PUF
t &MFDUSJDBMQPXFSSFRVJSFNFOUT 7"$"NQTPS 7"$"NQT
t $PNQPOFOUTBSF7"$QPXFSFECZBUSBOTGPSNFSJOUIFDPOUSPMDBCJOFU
t .BYJNVNEJTUBODFGSPNDPOUSPMDBCJOFUUP6MUSBTPSC.PEFM97JTGFFUN
t 5JNFEFMBZJTBEKVTUBCMFGSPNUPNJOVUFTGBDUPSZTFUBUNJOVUFT
1BHFt%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBM
4UBSUVQ
Start-up
1. Prime the header overflow P-trap, if installed, and ensure that
it follows the recommendations in the Header overflow P-trap
water seal section and Figure 11-1.
2. Turn on steam to the heat exchanger. Inspect connections for
piping leaks.
3. Turn on the modulating steam valve, and check for piping leaks.
Do not remove the white PVDF
insulation.
High-efficiency tubes are shipped with clear
QPMZmMNUPQSPUFDUUIF17%'JOTVMBUJPOTear
the clear poly film along the perforations,
and remove and discard it before start-up.
4. Ensure that the traps are operating.
5. Check the dispersion tubes for leaks.
Note: Spitting from the seal (bottom) end of a dispersion tube
could be caused by a missing seal (5). See Figure 17-1.
6. Ensure that the dispersion tubes are oriented with the tubelets at
a right angle to the airflow. See Figure 8-3.
7. Check for any other leaks from header connections.
8. If a temperature switch is installed, with both heat exchanger
and humidification steam turned on, turn off steam to the
heat exchanger. Make sure the temperature switch turns off
the modulating steam valve to stop humidification steam from
entering the dispersion assembly. Depending on the installation,
it may take several minutes for the steam valve to close.
9. Heat exchanger operation:
t&OTVSFPQFSBUJOHTUFBNQSFTTVSFJTBUMFBTUQTJHL1B
t&OTVSFPOPGGBOETIVUPGGEFMBZJGVTJOHTIVUPGGEFMBZ
conditions are working as intended.
%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBMt1BHF
1FSGPSNBODFEBUB
Steam capacity
Ultra-sorb Model XV maximum steam capacity is 35 lbs/hr
(15.8 kg/h) per tube.
Table 14-1:
Model XV air pressure loss
Duct air
velocity
Tube spacing
(55 ˚'<˚$>BU
sea level)
3"
75 mm
6"
150 mm
fpm
m/s
wc
Pa
wc
Pa
500
2.54
0.033
8.3
0.005
1.3
1000
5.08
0.121
30.2
0.020
5.1
1500
7.62
0.237
59.2
0.046
11.5
Notes:
t6MUSBTPSCQBOFMTXJUINN
PSNN
tube spacings have no measurable air pressure loss.
t6TF%3*45&&.TDri-calc sizing and selection software
to calculate your specific air pressure loss.
Non-wetting distance
Non-wetting distance is the distance downstream from the Ultra-sorb
panel after which wetting will not occur. Although steam wisps
may be present, solid objects at duct air temperature, such as coils,
dampers, fans, etc., downstream from this point will remain dry.
t See Figure 14-1. Note that the rise in RH (ΔRH) between
entering and leaving air has a direct bearing on the non-wetting
distance. As the ΔRH increases, more vapor needs to be
dispersed into the air; thus, the non-wetting distance increases.
t C A U T I O N ! Non-wetting distances described here do not
apply when installing an Ultra-sorb panel upstream of filter
media. If you must install an Ultra-sorb panel upstream of filter
media, consult DRI-STEEM or your local DRI-STEEM representative for special recommendations.
t Uneven airflow over the Ultra-sorb panel cross-section may
result in nonuniform mixing of steam with air, which may
adversely affect absorption distance.
t A small but measurable amount of duct air pressure loss will be
present downstream from the Ultra-sorb panel, depending on
air density, velocity, and tube spacing. See Table 14-1.
Figure 14-1:
Ultra-sorb non-wetting distances
LEAVING % RH
NON-WETTING DISTANCE IN INCHES
3"
6"
9"
12"
ENTERING % RH
Note:
5IFBCPWFOPOXFUUJOHEBUBBQQMZUPBJSWFMPDJUJFTVQUPGQNNT
BOEBSFCBTFEPOBJSMFBWJOHUIFIVNJEJmDBUJPO[POFBUPG¡'¡$
BOEUIFTUBUFE3)
1BHFt%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBM
.BJOUFOBODF
Strainer
Inspect at least twice during the first year. If fouled, inspect it more
frequently.
Steam traps
At least twice a year verify that the steam traps are functioning
properly. A blocked steam trap is room temperature. A “blowing”
steam trap is hot and noisy, and the discharge pipe from it is hot
for 30 feet (9 m). A properly operating steam trap is hot and makes
noise at intervals, and the discharge pipe is progressively cooler
beginning at the trap.
Header overflow P-trap water seal
If this option is used (see Header overflow P-trap water seal in the
Installation section): Prime the P-trap with about 8 ounces (about
200 ml) of water whenever the panel has been idle for 90 days or
more.
Valves
t 1OFVNBUJD*OTQFDUBOOVBMMZUPCFTVSFUIFWBMWFUJHIUMZDMPTFTPGG
steam, the stem packing is not leaking steam, and the actuator
diaphragm is not leaking air.
t &MFDUSJDNPEVMBUJOH*OTQFDUBOOVBMMZUPCFTVSFUIFWBMWFPQFSates freely and closes off steam tightly and the stem packing is
not leaking.
t 4PMFOPJEUZQF*OTQFDUBOOVBMMZUPWFSJGZQSPQFSGVODUJPOJOHXJUI
steam-tight shut off.
Dispersion tubes
t *GTUFBNPSDPOEFOTBUFJTFWJEFOUBUUIFTFBMJOHTVSGBDFSFQMBDF
the seal.
t *OTQFDUJOTVMBUJOHNBUFSJBMGPSUFBSTSFQBJSXJUI*OTVMBUJOH
Material Repair Kit (available from your local DRI-STEEM
representative) before dispersing steam or moving air through
the air handler to prevent further damage. This kit uses tested
and proven PVDF as repair material; do not use other adhesives
or repair methods.
t *OTQFDUJOTVMBUJOHNBUFSJBMGPSEJSUBOETNVEHFTHFOUMZDMFBO
with damp cloth and soapy water or diluted nontoxic, biodegradable cleaner/degreaser. Do not clean insulating material with a
pressure washer; direct spray could cause damage.
%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBMt1BHF
.BJOUFOBODF
Heat exchanger
Figure 16-1:
Header cross section
Pour water into
header through
dispersion tube
hole; submerge heat
exchanger
'JMMXBUFS
Heat exchanger
0.
Environmental conditions may require periodic heat exchanger
cleaning. After 2000 hours of operation, remove a dispersion tube and
check whether the heat exchanger is coated with material deposits.
Use of boiler chemicals that result in material deposits on the heat
exchanger may require more frequent inspection and cleaning to
maintain proper heat exchanger operation and avoid header flooding.
Material deposits can be removed from the heat exchanger with
DRI-STEEM’s Humidifier De-scaling Solution, available for purchase
from your DRI-STEEM representative or distributor. It is the only
cleaner/de-scaler approved for use with DRI-STEEM humidifiers.
Use of other cleaners/de-scalers may void your DRI-STEEM
warranty. See DRI-STEEM’s Humidifier De-scaling Solution page at
www.dristeem.com, or click here.
The Usage Instructions shipped with the DRI-STEEM Humidifier
De-scaling Solution contain important handling, mixing, timing, and
pH testing information.
WARNING!
Read and follow all warnings and instructions shipped with the
DRI-STEEM Humidifier De-scaling Solution.
The following additional instructions are for Ultra-sorb Model XV:
t #FGPSFQPVSJOHXBUFSPSEFTDBMJOHTPMVUJPOJOUPUIFIFBEFSJOTUBMMB
1/2" NPT thread drain hose in the header access overflow port. After
making sure the hose can reach a bucket or drain, elevate the end
well above the connection.
t 3FNPWFBEJTQFSTJPOUVCFBOEBEEXBUFSUPUIFIFBEFSUPTVCNFSHF
the heat exchanger (see Figure 16-1).
t "EEPVODFTPGEFTDBMJOHTPMVUJPOQFSGPPUPGIFBEFSMFOHUI
(30 ml of de-scaling solution per 300 mm of header length). A
12-foot (3660 mm) header requires about 1 gallon (3.8 litres) of descaling solution.
t "fter performing the de-scaling procedure as described in the Usage
Instructions#FGPSFSFTVNJOHPQFSBUJPOGMVTIBOEESBJOUIFIFBEFS
four times to thoroughly remove de-scaling solution from the system.
1BHFt%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBM
3FQMBDFNFOUQBSUT
Table 17-1:
Model XV Replacement parts
No.
Description
Table 17-2:
Replacement components
Part No.
1
Panel fastener, frame (package of 4)
191170-010
2
O-ring, square 1.35" ID (package of 10)
191170-015
Ring, tube end, 1.5" (package of 1)
207010-001
Ring, tube end, 1.5" (package of 5)
191170-020
Spring, compression, SST (package of 1)
501460-001
Spring, compression, SST (package of 5)
191170-025
Plug, tube end, 1.5" (package of 1)
310260
Plug, tube end, 1.5" (package of 5)
191170-030
6
Dispersion tube assembly
consult factory
7
'MBOHFTJEF
consult factory
8
'SBNFBTTFNCMZUPQ
consult factory
9
Header assembly
consult factory
10
Nut, 1/4-20 (package of 4)
191170-035
11
)7"$TFBMBOUGPSEVDUTFDUJPOBQQMJDBUJPOTOPUTIPXO)
consult factory
3
4
5
Description
Part No.
.PEVMBUJOHTUFBNWBMWF
consult factory
On/off valve body
501750-001
On/off valve coil
501700-002
Temperature switch
400260-001
Inlet strainer
consult factory
'5USBQ
consult factory
Figure 17-1:
Model XV replacement parts
1
4
8
5
6
7
3
2
7
9
10
0.
%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBMt1BHF
5S P V C M F T I P P U J O H
Table 18-1:
Model XV troubleshooting guide
Problem
Possible cause
Action
Humidifier discharges water
in duct
t .JTTJOHPSUPSOTFBM
t 3FQMBDFTFBM
t %JTQFSTJPOUVCFOPUQSPQFSMZJOTUBMMFE
t &OTVSFQSPQFSJOTUBMMBUJPO4FF'JHVSF
t )VNJEJmDBUJPOTUFBNJTFYDFFEJOHDBQBDJUZQFSUVCF
t &OTVSFIVNJEJmDBUJPOJTMCTISLHI
QFSUVCFPSMFTT
t 4 UFBNNBJOPWFSMPBEFEXJUIXBUFSEVFUPCPJMFS
discharging water with steam (priming)
t -PDBUFDBVTFPGQSJNJOHBOEDPSSFDU
t 4UFBNUSBQOPUESBJOJOHQSPQFSMZ
t 3FQMBDFSFQBJSPSDMFBOUSBQBTSFRVJSFE
t *GDPOEFOTBUFSFUVSONBJOJTPWFSMPBEFEmOEBOBMUFSOBUJWFNFUIPE
for draining.
Humidity exceeds setting of
humidistat
$POUSPMTZTUFN
malfunctioning
t )VNJEJmFSJNQSPQFSMZQJQFE
t $PSSFDUQJQJOHBTTIPXOJO'JHVSF
t 4 VSHFTPGDPOEFOTBUFJOTUFBNTVQQMZEVFUPDPOEFOsate collecting at low, undripped point in steam main
t *OTUBMMESJQTBOETUFBNUSBQTBTSFRVJSFE4FF5SBQSFDPNNFOEBUJPO
on page 10.
t *OBEFRVBUFTUFBNUSBQDBQBDJUZ
t 3FQMBDFXJUIMBSHFSUSBQ
t 1SFTTVSJ[FEDPOEFOTBUFJTCFJOHMJGUFEUPPIJHI
t 4FF-JGUJOHDPOEFOTBUFPOQBHF
t )FBUFYDIBOHFSJTDBLFEPSEJSUZ
t 'MVTIIFBEFS4FF)FBUFYDIBOHFSPOQBHF
t $POEFOTBUFDPMMFDUJOHJOIFBEFS
t *ODSFBTFTUFBNQSFTTVSFUISPVHIIFBUFYDIBOHFS
t 4FF)FBEFSPWFSnPX1USBQXBUFSTFBMPOQBHF
t 0
OPGGWBMWFVQTUSFBNGSPNIFBUFYDIBOHFS
NBMGVODUJPOJOHPSTUVDLJOUIF0''QPTJUJPO
t 3FQMBDFSFQBJSPSDMFBOWBMWFBTSFRVJSFE
t 5 FNQFSBUVSFTXJUDIEPXOTUSFBNGSPNIFBUFYDIBOHFS
malfunctioning
t 3FQMBDFPSSFQBJSTXJUDIBTSFRVJSFE
t "VUPNBUJDWBMWFOPUGVMMZDMPTJOH
t
t
t
t
t &MFDUSJDDPOUSPMTZTUFNNBMGVODUJPOJOH
t $BMJCSBUFPSSFQMBDF
'PSFJHONBUUFSIPMEJOHWBMWFPQFODMFBOWBMWF
7BMWFTQSJOHCSPLFOSFQMBDFTQSJOH
7BMWFTUFBNQBDLJOHUPPUJHIUMPPTFOBOEPSSFQMBDFQBDLJOH
4UFBNQSFTTVSFFYDFFETDMPTFPGGSBUJOHPGWBMWFTQSJOH
replace actuator or valve spring with one that is compatible with the
higher steam pressure.
t 7BMWFJOTUBMMFECBDLXBSETSFJOTUBMM
t "EKVTUWBMWFMJOLBHF
t 'BVMUZPSJOBDDVSBUFMZQMBDFEIVNJEJUZDPOUSPMMFS
t 3FQMBDFDPOUSPMMFSPSSFMPDBUFQFSDBUBMPHSFDPNNFOEBUJPOT
t 1PPSMPDBUJPOPGDPOUSPMDPNQPOFOUT
t 3FMPDBUFQFSDBUBMPHSFDPNNFOEBUJPOT
t *ODPNQBUJCMFDPOUSPMDPNQPOFOUT
t 3FQMBDFQFSTQFDJmFESFDPNNFOEBUJPOT
t "VUPNBUJDWBMWFJTIVOUJOH
t )
VNJEJmFSDBQBDJUZJTPWFSTJ[FEDIBOHFUPTNBMMFSWBMWF
t 1SFTTVSFSFEVDJOHWBMWFJTOPUBDDVSBUFMZDPOUSPMMJOHTUFBNQSFTTVSF
repair or replace.
t #PJMFSQSFTTVSFJTTXJOHJOHUPPXJEFMZBEKVTU
t &YDFTTJWFPVUTJEFBJSWPMVNF
t $
IFDLGBOTEBNQFST7"7FUD
t .JYFEBJSJOMFUGPSNVMB PVUTJEFBJS
x (moisture content)
+ SFUVSOBJS
x (moisture content)
= mixed air inlet in lbs/100 cfm (kg/100 m3/h)
t *ODPSSFDUDPOUSPMWPMUBHF
t 3FQMBDFUSBOTGPSNFS
t *ODPSSFDUDPOUSPMTJHOBM
t 3FQMBDFDPNQPOFOUT
t *NQSPQFSXJSJOHDPOOFDUJPOT
t 3FXJSF
t *ODPSSFDUIVNJEJUZTFOTPS
t 3FQMBDF
t )VNJEJUZDPOUSPMMFSPVUPGDBMJCSBUJPO
t 3FDBMJCSBUF
1BHFt%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBM
5S P V C M F T I P P U J O H
Table 19-1:
Model XV troubleshooting guide (continued)
Problem
Possible cause
Action
Air cannot absorb steam
quantity being discharged
t )VNJEJmFSPQFSBUFTXIFOCMPXFSJTPGG
t 1SPWJEFJOUFSMPDL
t 7BMWFJTIVOUJOH
t 4FF"VUPNBUJDWBMWFJTIVOUJOHPOGBDJOHQBHF
t "
JSUFNQFSBUVSFJOEVDUUPPMPXGPSTUFBN
quantity being emitted
t 3BJTFEVDUBJSUFNQFSBUVSF
t 4UFBNQSFTTVSFUPPIJHI
t 3FEVDFQSFTTVSF
t 1BOFMJTWJCSBUJOH
t 5JHIUFOBTTFNCMZBOEPSNPVOUJOHIBSEXBSF
Humidifier is noisy
Duct loses static pressure
t *NQSPQFSTFBMJOHXIFSF6MUSBTPSCGSBNF
EPXOTUSFBNGSPN6MUSBTPSC
penetrates duct
panel
t 4 FBMBMMQBOFMDPSOFSTBOEBMMDSBDLTCFUXFFOQBOFMBOEEVDUTnBOHFT4FF
"Preventing duct static pressure loss" on page 8.
Space humidity will not rise
to humidistat set point
t *ODSFBTF
t 4UFBNQSFTTVSFUPPMPX
t .BOVBMTUFBNWBMWFQBSUJBMMZDMPTFE
t 0QFO
t 4USBJOFSTDSFFOQBSUJBMMZDMPHHFE
t $MFBO
t #PJMFSQSFTTVSFUPPMPX
t "EKVTUDPOUSPM
t 1 SFTTVSFSFEVDJOHWBMWFOPUBDDVSBUFMZ
controlling steam pressure
t 3FQBJSPSSFQMBDF
t #PJMFSQSFTTVSFTXJOHJOHUPPXJEFMZ
t "EKVTUDPOUSPMT
t *ODPSSFDUQJQJOH
t $PSSFDUQJQJOHBTTIPXOJO'JHVSF
t 6OEFSTJ[FETUFBNQJQJOH
t 3FQMBDFQJQJOH
t "VUPNBUJDTUFBNWBMWFOPUGVMMZPQFOJOH
t 7BMWFQBDLJOHJTBEKVTUFEUPPUJHIUMZMPPTFOSFQMBDFQBDLJOH
t "EKVTUWBMWFMJOLBHF
t 3FDBMJCSBUFIVNJEJTUBU
t &MFDUSJDDPOUSPMTZTUFNNBMGVODUJPOJOH
t $IBOHFUSBOTGPSNFS
t *ODPSSFDUDPOUSPMDJSDVJUWPMUBHF
t 3FQMBDFDPNQPOFOUTUPNBLFBMMDPNQPOFOUTDPNQBUJCMF
t *ODPSSFDUDPOUSPMTJHOBM
t 3FQMBDFDPNQPOFOUT
t *NQSPQFSXJSJOH
t 3FXJSF
t *ODPSSFDUIVNJEJUZTFOTPS
t 3FQMBDFTFOTPS
t )VNJEJUZDPOUSPMMFSPVUPGDBMJCSBUJPONBMGVODUJPOJOH
t 3FQBJSPSSFQMBDF
t .
BMGVODUJPOJOHIVNJEJmFSUFNQFSBUVSFTXJUDIOPU t 3FQMBDFPSSFBEKVTU
allowing humidifier valve to open
$POEFOTBUFDPMMFDUTJOEVDU
t 1OFVNBUJDDPOUSPMTZTUFNNBMGVODUJPOJOH
t 3FQBJSPSSFQMBDF
t 0CTUSVDUFEBJSMJOF
t 3FNPWFPCTUSVDUJPO
t .BMGVODUJPOJOHQOFVNBUJDUFNQFSBUVSFTXJUDI
t 3FQMBDFTXJUDI
t "JSMFBLJOBDUVBUPS
t 3FQBJSPSSFQMBDFEJBQISBHN
t $PNQSFTTFEBJSQSFTTVSFJTUPPMPX
t "EKVTUQSFTTVSF
t 5 FNQFSBUVSFDPOUSPMTXJUDIOPUBMMPXJOH
modulating steam valve to operate
t *OTUBMMIFBEFSPWFSnPXSee "Header overflow P-trap water seal" on page 10.
t $POTVMU%3*45&&.UPBTTFTTXIFUIFSJOTUBMMFEQBOFMJTDPSSFDUGPSBQQMJDBUJPO
t 'PSFJHONBUUFSQSFWFOUJOHWBMWFGSPNDMPTJOH
t $MFBOPSSFQMBDFWBMWF
t 1 BOFMJTNPVOUFEUPPDMPTFUPJOUFSOBMEFWJDFT
(dampers, turning vanes, etc.) in duct
t .
PWFQBOFMUPBQPJOUGVSUIFSVQTUSFBNPGJOUFSOBMEFWJDFT4FF4FMFDUJOH
UIFMPDBUJPOJOUIF*OTUBMMBUJPOTFDUJPOBOE'JHVSF
t .PSFEJTQFSTJPOUVCFTTIPSUFOTOPOXFUUJOHEJTUBODF$POTVMU%3*45&&.
to determine the total number of tubes required.
t 6
OJOTVMBUFEEVDUQBTTJOHUISPVHIVOIFBUFEBSFB
(low duct surface temperature)
t *OTVMBUFEVDUXPSL
%3*45&&.6MUSBTPSC.PEFM974UFBN%JTQFSTJPO1BOFM*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBMt1BHF
Expect quality from the industry leader
Two-year Limited Warranty
'PSNPSFUIBOZFBST%3*45&&.IBT
lead the industry with creative and reliable
humidification solutions. Our focus on
quality is evident in 6MUSBTPSC, which
features stainless steel construction and an
industry-leading 5XPZFBS-JNJUFE8BSSBOUZ.
DRI-STEEM Corporation (“DRI-STEEM”) 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 twenty-seven (27) months from the date
DRI-STEEM ships such product, whichever date is the earlier.
For more information
www.dristeem.com
TBMFT!ESJTUFFNDPN
For current product information,
please see the literature section of our
web site: www.dristeem.com
DRI-STEEM Corporation
"O*40 certified corporation
64)FBERVBSUFST
14949 Technology Drive
&EFO1SBJSJF./
800-328-4447 or 952-949-2415
952-229-3200 (fax)
&VSPQFBOPGGJDF
.BSD#SJFST
Grote Hellekensstraat 54 b
B-3520 Zonhoven
Belgium
+3211823595 (voice)
+3211817948 (fax)
&NBJMNBSDCSJFST!ESJTUFFNDPN
$POUJOVPVTQSPEVDUJNQSPWFNFOUJTB
policy of %3*45&&. $PSQPSBUJPO; therefore,
product features and specifications are
TVCKFDUUPchange without notice.
%3*45&&.BOE6MUSBTPSCBSFSFHJTUFSFE
USBEFNBSLTPG%3*45&&.$PSQPSBUJPO
and are filed for trademark registration in
$BOBEBBOEUIF&VSPQFBODPNNVOJUZ
6MUSBTPSCJTDPWFSFECZUIFGPMMPXJOH
1BUFOUTXJUIBEEJUJPOBMQBUFOUTQFOEJOH
6OJUFE4UBUFT1BUFOUOVNCFST
5,277,849; 5,372,753; 5,376,312; 5,543,090
If any DRI-STEEM product is found to be defective in material or workmanship
during the applicable warranty period, DRI-STEEM’s entire liability, and the
purchaser’s sole and exclusive remedy, shall be the repair or replacement of the
defective product, or the refund of the purchase price, at DRI-STEEM’s election.
DRI-STEEM shall not be liable for any costs or expenses, whether direct or indirect,
associated with the installation, removal or reinstallation of any defective product.
The Limited Warranty does not include cylinder replacement for electrode steam
humidifiers.
DRI-STEEM’s Limited Warranty shall not be effective or actionable unless
there is compliance with all installation and operating instructions furnished by
DRI-STEEM, or if the products have been modified or altered without the written
consent of DRI-STEEM, or if such products have been subject to accident, misuse,
mishandling, tampering, negligence or improper maintenance. Any warranty claim
must be submitted to DRI-STEEM in writing within the stated warranty period.
Defective parts may be required to be returned to DRI-STEEM.
DRI-STEEM’s Limited Warranty is made in lieu of, and DRI-STEEM disclaims
all other warranties, whether express or implied, including but not limited to any
*.1-*&%8"33"/5:0'.&3$)"/5"#*-*5:"/:*.1-*&%8"33"/5:
OF FITNESS FOR A PARTICULAR PURPOSE, any implied warranty arising out
of a course of dealing or of performance, custom or usage of trade.
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL
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03%"."(&03*/+63:501&340/403
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 DRI-STEEM has notice of the possibility of
such damages.
#ZQVSDIBTJOH%3*45&&.TQSPEVDUTUIFQVSDIBTFSBHSFFTUPUIFUFSNTBOE
conditions of this Limited Warranty.
Extended warranty
The original user may extend the term of the DRI-STEEM Limited Warranty
for a limited number of months past the initial applicable warranty period and
term provided in the first 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.
Any extension of the Limited Warranty under this program must be in writing,
signed by DRI-STEEM, and paid for in full by the purchaser.
mc_051308_0630
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Part No. 890000-160 Rev A
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