DriSteem Vaporstream User manual

Vaporstream®
Electric Humidifier
Installation, Operation
and Maintenance Manual

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ATTENTION INSTALLER
Read this manual before installing.
Leave manual with product owner.
DRI-STEEM®technical support
800-328-4447
WARNING!
Disconnect electrical power before installing supply wiring. Contact with
energized circuits can cause severe personal injury or death as a result
of electrical shock.
This product must be installed by qualified HVAC and electrical
contractors and in compliance with local, state, federal, and governing
codes. Improper installation can cause property damage, severe
personal injury, or death as a result of electric shock, burns, and/or fire.
The humidifier tank, dispersion assembly, and all connected hose or
piping can contain or discharge hot steam and/or hot water at 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.
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.
Supply water pressure greater than 80 psi (550 kPa) can cause the
humidifier to overflow.

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Keypad and troubleshooting
information
The Vapor-logic® 3 Installation and Operation
Manual,
which was shipped with your
humidifier, is a comprehensive operation
manual. Refer to it for information about
using the keypad and for troubleshooting
information.
Download DRI-STEEM literature
Most DRI-STEEM®product manuals can be
downloaded, printed, and ordered from our
web site: www.dristeem.com
Overview
Model VLC ............................................2
Model VLDI ...........................................3
Specifications...........................................4
Dimensions ............................................5
Weights and cabinet sizes ................................6
Installation
Selecting a location......................................7
Mounting
Support legs ........................................9
Trapeze hanger ....................................10
Wall brackets .....................................11
Weather cover.........................................12
Outdoor enclosure ....................................14
Piping
Overview..........................................23
Drain .............................................25
Water supply ......................................27
Wiring ...............................................29
Humidistat and transmitter placement....................33
Dispersion
General instructions ................................34
Interconnecting piping requirements .................35
Drip tee installation ................................37
Single tube and multiple tube ........................38
Rapid-sorb ........................................43
SDU-I ............................................50
SDU-E............................................52
Area-type fan ......................................55
Operation
Start-up procedure .....................................57
Maintenance
Standard water models .................................58
DI water models .......................................62
Outdoor enclosure .....................................64
Replacement parts
Humidifier tank .......................................66
Control cabinet ........................................68
SDU-I ................................................70
SDU-E ...............................................71
Outdoor enclosure .....................................72
Warranty
...............................................Back cover

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Standard water models (Model VLC)
Vaporstream VLC humidifiers use electricity to heat potable or
softened fill water into steam for humidification. A conductivity
probe monitors water level, requiring water conductivity to be at
least 100 μS/cm to operate properly. Therefore, VLC models will
not operate with demineralized water. For demineralized water
operation (using deionized or reverse osmosis treated water), use
VLDI model humidifiers (described on next page).
Figure 2-1:
Vaporstream®Model VLC (standard water model) system example
OM-628
Control cabinet
Probe
Dispersion tube
Duct
Cover
Steam outlet
Skimmer port outlet
Fill valve
Needle valve
Drain valve
Cleanout tray
Field drain connection
Thermal trip
Cover fastener
Field
connection
terminal strip
Temperature sensor
Heaters
Vapor-logic3
Important notes:
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models can be converted in the field for
use with deionized/reverse osmosis (DI/
RO) water. Vaporstream VLDI (DI water)
models can be converted in the field for
use with potable or softened water.
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is not covered by your DRI-STEEM®
warranty.
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Overview

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Figure 3-1:
Vaporstream Model VLDI (DI/RO water model)
OM-1000
Cover fastener
Cover
Float valve
Overflow
Low-water cutoff
Drain valve
Deionized water models (Model VLDI)
Vaporstream VLDI humidifiers use electricity to heat
deionized (DI) or reverse osmosis (RO) fill water into steam for
humidification. VLDI models control water level using a float valve
with low water cutoff switch.
VLDI models are virtually maintenance-free and require very little
or no downtime.
Systems using tap or softened water control
water levels electronically using a three-rod
probe. The controller responds with the
above actions when the water level reaches
each rod.
Fill valve closes
Fill valve opens
Low-water cutoff
Figure 3-2:
Water level control for standard
water systems
VLC-OM-030
Figure 3-3:
Water level control for DI/RO
water systems
Supply water connection
Float rod
Note:
See Pages 23 and 24 for detailed
installation drawings.
Systems using deionized (DI) water or water
that has been treated through reverse
osmosis (RO) control water levels using a
float valve and low water cutoff switch.
Float ball
VLC-OM-026
Overview

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Table 4-1:
Vaporstream capacities and electrical specifications
VLC
VLDI
model
(kW-
stages)
Maximum
steam capacity†Heaters
Current draw (amps)
kWSingle-phase Three-phase***
lbs/hr kg/h Qty. Stages** 120V 208V* 240V* 480V* 600V* 208V* 240V* 480V* 600V*
2-1 5.7 2.6 1 1 16.7 9.6 8.3 4.2 3.3 — — — — 2
3-1 8.6 3.9 1 1 25.0 14.4 12.5 6.3 5.0 — — — — 3
4-1 11.4 5.2 1 1 33.3 19.2 16.7 8.3 6.7 — — — — 4
5-1 15.2 6.9 1 1 — 25.6 22.2 11.1 8.9 — — — — 5.33
6-1 17.1 7.8 3 1 — 28.8 25.0 12.5 10.0 16.7 14.4 7.2 5.8 6
9-1 25.7 11.6 3 1 — 43.3 37.5 18.8 15.0 25.0 21.7 10.8 8.7 9
12-1 34.2 15.5 3 1 — — — 25.0 20.0 33.3 28.9 14.4 11.5 12
16-1 45.6 20.7 3 1 — — — 33.3 26.7 44.4 38.5 19.2 15.4 16
21-1 59.9 27.1 3 1 — — — 43.8 35.0 — — 25.3 20.2 21
25-1 71.3 32.3 3 1 — — — — 41.7 — — 30.1 24.1 25
12-2 34.2 15.5 6 2 — 57.7 50.0 25.0 20.0 33.3 28.9 14.4 11.5 12
18-2 51.3 23.3 6 2 — 86.5 75.0 37.5 30.0 50.0 43.3 21.7 17.3 18
24-2 68.4 31.0 6 2 — — — 50.0 40.0 66.6 57.7 28.9 23.1 24
32-2 91.2 41.4 6 2 — — — 66.7 53.3 88.8 77.0 38.5 30.8 32
42-2 119.7 54.3 6 2 — — — 87.5 70.0 — — 50.5 40.4 42
50-2 142.5 64.6 6 2 — — — — 83.3 — — 60.1 48.1 50
18-3 51.3 23.3 9 3 — 86.5 75.0 37.5 30.0 50.0 43.3 21.7 17.3 18
27-3 77.0 34.9 9 3 — 129.8 112.5 56.3 45.0 74.9 65.0 32.5 26.0 27
36-3 102.6 46.5 9 3 — — — 75.0 60.0 99.9 86.6 43.3 34.6 36
48-3 136.8 62.0 9 3 — — — 100.0 80.0 133.2 115.5 57.7 46.2 48
63-3 179.6 81.4 9 3 — — — 131.3 105.0 — — 75.8 60.6 63
75-3 213.8 96.9 9 3 — — — — 125.0 — — 90.2 72.2 75
24-4 68.4 31.0 12 4 — 115.4 100.0 50.0 40.0 66.6 57.7 28.9 23.1 24
36-4 102.6 46.5 12 4 — 173.1 150.0 75.0 60.0 99.9 86.6 43.3 34.6 36
48-4 136.8 62.0 12 4 — — — 100.0 80.0 133.2 115.5 57.7 46.2 48
64-4 182.4 82.7 12 4 — — — 133.3 106.7 177.6 154.0 77.0 61.6 64
84-4 239.4 108.6 12 4 — — — 175.0 140.0 — — 101.0 80.8 84
100-4 285.0 129.3 12 4 — — — — 166.7 — — 120.3 96.2 100
Notes:
* If using an optional SDU or Area-type™ fan unit for dispersion, run a neutral line with 208V/240V/single-phase and 208V/three-phase power supply lines to
provide a 120V circuit for the fan. With all other power supply voltages (other than 120V), provide a separate 120V circuit for the fan, or order from DRI-STEEM a
transformer installed in the control cabinet.
** Heater stage identifies the number of contactors.
*** Three-phase power supply connection. All heater loads are wired Delta.
† Total humidifier load = load to meet design conditions + load to compensate for steam loss from the dispersion assembly and interconnecting piping. If
total humidifier load is more than the humidifier's maximum capacity, design conditions will not be met. For steam loss data see the DRI-STEEM Design Guide
available for downloading and printing at www.dristeem.com
Overview

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Overview
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Table 5-2:
Vaporstream dimensions
VLC/VLDI model (kW - stages)
Without mounted control cabinet
A (length) B (width) C (height)
inches mm inches mm inches mm
2-1, 3-1, 4-1, 5-1 12.52 318 26.00 660 18.88 480
6-1, 9-1, 12-1, 16-1, 21-1, 25-1 17.85 453 22.00 559 18.88 480
12-2, 18-2, 24-2, 32-2, 42-2, 50-2 25.35 644 22.00 559 18.88 480
18-3, 27-3, 36-3, 48-3, 63-3, 75-3 32.85 834 22.00 559 18.88 480
24-4, 36-4, 48-4, 64-4, 84-4, 100-4 40.35 1025 22.00 559 18.88 480
VLC/VLDI model (kW - stages)
With mounted control cabinet option
Max. control
cabinet size
A’ (length 2) B’ (width 2) C’ (height 2)
inches mm inches mm inches mm
2-1, 3-1, 4-1, 5-1 M 14.75 375 34.00 864 30.31 770
6-1, 9-1, 12-1, 16-1, 21-1, 25-1 M 25.00 635 30.00 762 30.31 770
12-2, 18-2, 24-2, 32-2, 42-2, 50-2 L 29.00 737 30.00 762 34.11 866
18-3, 27-3, 36-3, 48-3, 63-3, 75-3 XXL 32.85 834 32.00 813 46.11 1171
24-4, 36-4, 48-4, 64-4, 84-4, 100-4 XXL 40.35 1025 32.00 813 46.11 1171
Notes:
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Table 5-1:
Standard control cabinet dimensions and weights
Cabinet
size
Cabinet dimensions Shipping
weight*
inches mm lbs kg
S 16 h x 14 w x 6 d 406 h x 356 w x 152 d 32 15
M 20 h x 20 w x 7 d 508 h x 508 w x 178 d 55 25
L 24 h x 24 d x 7 d 610 h x 610 w x 178 d 73 33
XL 30 h x 24 w x 9 d 762 h x 610 w x 229 d 91 41
XXL 36 h x 30 w x 9 d 914 h x 762 w x 229 d 136 62
Notes:
* In addition to shipping weight of humidifier
Figure 5-1:
Vaporstream dimensions
VLC-OM-039
C
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C'
A
B
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Table 6-1:
Vaporstream weights and control cabinet sizes by model
VLC
VLDI
model
(kW-
stages)
Shipping
weight
Operating
weight †
Control cabinet size*
(M, L, XL, XXL)
Single-phase power Three-phase power
lbs kg lbs kg 120V 208V 240V 480V 600V 208V 240V 480V 600V
2-1 35 16 79 36 M M M M M — — — —
3-1 35 16 79 36 M M M M M — — — —
4-1 35 16 79 36 M M M M M — — — —
5-1 35 16 79 36 — M M M M — — — —
6-1 57 26 157 71 — M M M M M M M M
9-1 57 26 157 71 — M M M M M M M M
12-1 57 26 157 71 — — — M M M M M M
16-1 57 26 157 71 — — — M M M M M M
21-1 57 26 157 71 — — — M M — — M M
25-1 57 26 157 71 — — — — M — — M M
12-2 79 36 237 108 — L L L L L L L L
18-2 79 36 237 108 — L L L L L L L L
24-2 79 36 237 108 — — — L L L L L L
32-2 79 36 237 108 — — — L L L L L L
42-2 79 36 237 108 — — — L L — — L L
50-2 79 36 237 108 — — — — L — — L L
18-3 110 50 326 148 — L L L L L L L L
27-3 110 50 326 148 — XL L L L L L L L
36-3 110 50 326 148 — — — L L L L L L
48-3 110 50 326 148 — — — L XXL XL L L L
63-3 110 50 326 148 — — — XL XXL — — L L
75-3 110 50 326 148 — — — — XXL — — L XXL
24-4 153 70 427 194 — L L L L L L L L
36-4 153 70 427 194 — XL XL L L L L L L
48-4 153 70 427 194 — — — L L XL L L L
64-4 153 70 427 194 — — — XL XXL XL XL L L
84-4 153 70 427 194 — — — XL XXL — — L L
100-4 153 70 427 194 — — — — XXL — — L XXL
Notes:
* Control cabinet sizes in this table are for the largest required cabinet for each model. Depending on Vaporstream options chosen you may receive a smaller
cabinet than the one shown in this table. Contact DRI-STEEM if you need more detailed information about control cabinet sizes. Control cabinet dimensions are
shown on the next page.
† Operating weight does not include weight of the control cabinet.
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Overview

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Locating the humidifier
When selecting a location for the humidifier, consider the following:
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– Humidifier: VLC water fill cycles (see Page 27 of this document
regarding fill cycle noise)
– Control cabinet: Cycling contactors
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primarily top, left side, and front (see clearance recommendations
below)
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hose, tubing, or pipe (see dispersion section of this manual)
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condensate return piping (see the piping section of this manual)
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such as power distribution transformers and high horsepower
motors controlled by variable frequency drives.
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Figure 7-1:
Vaporstream clearance recommendations
DC-1181
Top:
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Right side
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Floor:
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Front:
NN
Cleanout
plate
Back:
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Left side:
NN
Cleanout
tray
Note:
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the cabinet to the floor.
Note:
See the dispersion section of this manual for
dispersion assembly placement guidelines.
Installation

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Mounting methods
To ensure that the water level control system works properly, the
tank must be mounted level side to side and front to back.
For overhead installations, install a drip pan to prevent possible
water damage (see drawing on the next page).
Support legs and wall brackets are not available for single-heater
models (VLC/VLDI models 2-1, 3-1, 4-1, and 5-1). These models
must be mounted using a trapeze or within an outdoor enclosure.
For information about mounting with an outdoor enclosure, see
Pages 14-22.
The mounting methods described in this manual are the only
options available to maintain compliance to the UL 998 standard;
alternate mounting methods will compromise the humidifier’s CE,
ETL, and C-ETL approvals.
Important:
Installation must comply with governing
codes.
Table 8-1:
Mounting options by model
Mounting method
VLC/VLDI models
2-1, 3-1, 4-1, 5-1 All other models
Standard Optional Standard Optional
Trapeze X X
Support legs X
Wall brackets X
Weather cover X X
Outdoor enclosure X X
More on next page ▶
Installation
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