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®

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.

.PEFM7-$

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

#

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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:

NN

Right side

NN

Floor:

NN

Front:

NN

Cleanout

plate

Back:

NN

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

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