DriSteem VAPORSTREAM Installation, Operation And Maintenance Manual

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VAPORSTREAM

Electric Humidifier

Installation, Operation, and Maintenance Manual

Page 2

Warnings and cautions

WARNINGS AND CAUTIONS

Warnings and cautions

WARNING

Indicates a hazardous situation that could result in death or serious injury if instructions are not followed.

mc_051508_1145

WARNING

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 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, or ﬁ re.

DriSteem Technical Support: 800-328-4447

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.

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CAUTION

Indicates a hazardous situation that could result in damage to or destruction of property if instructions are not followed.

Hot surfaces and hot water

This steam humidiﬁ cation system has extremely hot surfaces. Water in tank, steam hose and tubes, 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.

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VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 3

Warnings and cautions

WARNING

Warnings and Cautions

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 open control cabinet or remove heater terminal or subpanel access panels until electrical power is disconnected.

Follow the shutdown procedure in this manual before performing service or maintenance procedures on any part of the system.

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Electric shock hazard

If the humidiﬁ er starts up responding to a call for humidity during maintenance, severe bodily injury or death from electric shock could occur. To prevent such start-up, follow the procedure below before performing service or maintenance procedures on this humidiﬁ er (after the tank has cooled down and drained):

1. Use Vapor-logic

2. Shut off all electrical power to humidiﬁ er using ﬁ eld-installed fused disconnect, and lock all power disconnect switches in OFF position.

3. Close ﬁ eld-installed manual water supply shut-off valve.

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keypad/display to change control mode to Standby.

CAUTION

Hot discharge water

Discharge water can be as hot as 212 °F (100 °C) and can damage the drain plumbing.

To prevent such damage from humidiﬁ ers without water tempering, allow the tank to cool before draining.

Humidiﬁ ers equipped with a water tempering device such as a DriSteem Drane-kooler need fresh make-up water in order to function properly. Make sure the water supply to the water tempering device remains open during draining.

Excessive supply water pressure

Supply water pressure greater than 80 psi (550 kPa) can cause the humidiﬁ er to overﬂ ow.

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VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

iii

Page 4

Table of contents

ATTENTION INSTALLER

Read this manual before installing. Leave manual with product owner.

DriSteem® Technical Support

800-328-4447

WHERE TO FIND MORE INFORMATION

Our web site:

The following documents are available on our web site: www.dristeem.com

• Catalogs

– Vaporstream

– Ultra-sorb

• Installation, Operation, and Maintenance manuals (IOM)

– Ultra-sorb

– Vapor-logic controller (includes

humidifier operation and troubleshooting)

• DriSteem Humidification System Design Guide (includes steam loss tables and general humidification information)

DriCalc®:

DriCalc, our software for humidiﬁ cation system sizing and selection, can be ordered at our web site. Also in DriCalc:

• Library of installation guides

• Dispersion and sensor placement in ducts and air handlers

• Vertical airflows

Call us at 800-328-4447

Obtaining documents from our web site or from DriCalc is the quickest way to view our literature, or we will be happy to mail literature to you.

WARNINGS AND CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

North American models, capacities, and electrical specifications . . . . . . . 4

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Weights and cabinet sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Selecting a location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Mounting: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Support legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Trapeze hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Wall brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Weather cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Outdoor Enclosure: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Weights, electrical specifications, and connection sizes . . . . . . . . . . 17

Operating temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Piping: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Overview, tap/softened water . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Overview, RO/DI water option . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Water supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Wiring: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

European requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Preventing electrical noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Control wiring and grounding requirements . . . . . . . . . . . . . . . . . . 34

Sensor placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Dispersion: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Selecting the dispersion assembly location . . . . . . . . . . . . . . . . . . . 36

Interconnecting piping requirements . . . . . . . . . . . . . . . . . . . . . . . . 37

Steam outlet connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Drip tee installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Single tube and multiple tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Rapid-sorb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Ultra-sorb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

SDU-I and SDU-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Area-type fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 5

Table of contents

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Start-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Tap/softened water: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Water quality and skim duration . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Cool-down procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Inspection and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

RO/DI water option: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Cool-down procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Inspection and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Outdoor Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Control cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

SDU-I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

SDU-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Outdoor Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Keypad/display and troubleshooting

The Vapor-logic Installation and Operation Manual, which was shipped with your

humidiﬁ er, is a comprehensive operation manual. Refer to it for information about using the keypad/display and Web interface, and for troubleshooting information.

Download DriSteem literature

Most DriSteem product manuals can be downloaded, printed, and ordered from our web site: www.dristeem.com

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VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 6

OVERVIEW

Product overview

Supply water guidelines

Supply water quality is an important component of humidiﬁ er reliability and maintenance.

Examples:

• Corrosive water can decrease the service life of the humidiﬁ er.

• Excessive water hardness can increase the humidiﬁ er maintenance requirements.

To maximize humidiﬁ er service life and minimize humidiﬁ er maintenance, DriSteem has established guidelines for supply water See Table 2-1.

Table 2-1: DriSteem supply water guidelines

Chlorides*

RO or DI water Softened water Tap water * Damage caused by chloride

corrosion is not covered by your DriSteem warranty.

Total hardness

Tap water

RO, DI, or softened water Tap water

Silica < 15 ppm

< 5 ppm < 25 ppm < 50 ppm

< 500 ppm

7 to 8

6.5 to 8.5

FIGURE 2-1: VAPORSTREAM SYSTEM EXAMPLE, TAP/SOFTENED WATER

Duct

Dispersion tube

Cover fastener

Cover

Steam outlet

Fill valve

Vapor-logic controller

Heaters

Thermal trip

Temperature sensor

Field connection terminal strip

Probe

Skimmer port outlet

Needle valve

OM-628

Cleanout tray

Field drain connection

Drain valve

Control cabinet

You may wish to take action to mitigate potential negative effects to your humidiﬁ er. Supply water outside of these guidelines may void your DriSteem warranty. Please contact your DriSteem Representative or DriSteem Technical Support if you need advice.

TAP/SOFTENED WATER

Vaporstream humidiﬁ ers with tap/softened water (shown above) use electricity to heat tap or softened ﬁ ll water into steam for humidiﬁ cation. A conductivity probe monitors the water level; therefore, water conductivity must be at least 30 μS/cm for proper operation. Vaporstream with tap/softened water will not operate with RO/DI water. For RO/DI water, use Vaporstream with the RO/DI water option.

RO/DI WATER OPTION

Vaporstream humidiﬁ ers with RO/DI water systems (systems using deionized water or water that has been treated using reverse osmosis) use electricity to heat RO/DI ﬁ ll water into steam for humidiﬁ cation. Water level is controlled with a ﬂ oat valve and low water cutoff switch. Float valves are compatible with RO/DI water only.

Humidiﬁ ers with the RO/DI water option are virtually maintenance free and require little or no downtime.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 7

Product overview

OVERVIEW

FIGURE 3-1: VAPORSTREAM HUMIDIFIER, RO/DI WATER OPTION

OM-1000

Cover fastener

Cover

Float valve

Overﬂ ow

Low-water cutoff

Drain valve

See Pages 22 and 23 for detailed installation drawings.

Damage caused by chloride corrosion is not covered by your DriSteem warranty.

FIGURE 3-2: WATER LEVEL CONTROL FOR TAP/SOFTENED WATER HUMIDIFIER

VLC-OM-030

Fill valve closes when water level rises to this probe.

Fill valve opens when water level is below this probe.

Low-water cutoff. Power to heaters is cut if water level drops below this probe.

Humidiﬁ ers 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.

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WATER TYPE CONVERSION

Vaporstream tap/softened water humidiﬁ ers can be converted in the ﬁ eld for use with RO/DI water, and Vaporstream RO/DI water humidiﬁ ers can be converted in the ﬁ eld for use with tap/softened water. Contact your DriSteem representative or distributor for parts and instructions.

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VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

FIGURE 3-3: WATER LEVEL CONTROL FOR RO/DI WATER OPTION HUMIDIFIER

Supply water connection

Float rod

VLC-OM-026

Humidiﬁ ers using RO/DI water control water levels using a ﬂ oat valve and low-water cutoff switch.

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Float ball

Page 8

SPECIFICATIONS

North American models, capacities, and electrical speciﬁ cations

Table 4-1: Vaporstream capacities and electrical specifications, tap/softened water and RO/DI water

Vapor-

stream-

model

(kW-

stages)

2-1 5.7 2.6 1 1 16.7 9.6 8.3 7.2 4.2 3.3 — — — — — 2

3-1 8.6 3.9 1 1 25.0 14.4 12.5 10.8 6.3 5.0 — — — — — 3

4-1 11.4 5.2 1 1 33.3 19.2 16.7 14.4 8.3 6.7 — — — — — 4

5-1 15.2 6.9 1 1 — 25.6 22.2 19.2 11.1 8.9 — — — — — 5.33

6-1 17.1 7.8 3 1 — 28.8 25.0 21.7 12.5 10.0 16.7 14.4 12.5 7.2 5.8 6

9-1 25.7 11.7 3 1 — 43.3 37.5 32.5 18.8 15.0 25.0 21.7 18.8 10.8 8.7 9

12-1 34.2 15.5 3 1 — — — 43.3 25.0 20.0 33.3 28.9 25.0 14.4 11.5 12

16-1 45.6 20.7 3 1 — — — — 33.3 26.7 44.4 38.5 33.3 19.2 15.4 16

21-1 59.9 27.2 3 1 — — — — 43.8 35.0 — — 43.8 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 43.3 25.0 20.0 33.3 28.9 25.0 14.4 11.5 12

18-2 51.3 23.3 6 2 — 86.5 75.0 65.0 37.5 30.0 50.0 43.3 37.5 21.7 17.3 18

24-2 68.4 31.0 6 2 — — — 86.6 50.0 40.0 66.6 57.7 50.0 28.9 23.1 24

32-2 91.2 41.4 6 2 — — — — 66.7 53.3 88.8 77.0 66.7 38.5 30.8 32

42-2 119.7 54.3 6 2 — — — — 87.5 70.0 — — 87.5 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 65.0 37.5 30.0 50.0 43.3 37.5 21.7 17.3 18

27-3 77.0 34.9 9 3 — 129.8 112.5 97.5 56.3 45.0 74.9 65.0 56.3 32.5 26.0 27

36-3 102.6 46.5 9 3 — — — 130.0 75.0 60.0 99.9 86.6 75.0 43.3 34.6 36

48-3 136.8 62.1 9 3 — — — — 100.0 80.0 133.2 115.5 100.0 57.7 46.2 48

63-3 179.6 81.5 9 3 — — — — 131.3 105.0 — — 131.3 75.8 60.6 63

75-3 213.8 97.0 9 3 — — — — — 125.0 — — — 90.2 72.2 75

24-4 68.4 31.0 12 4 — 115.4 100.0 86.6 50.0 40.0 66.6 57.7 50.0 28.9 23.1 24

36-4 102.6 46.5 12 4 — 173.1 150.0 130.0 75.0 60.0 99.9 86.6 75.0 43.3 34.6 36

48-4 136.8 62.1 12 4 — — — 173.3 100.0 80.0 133.2 115.5 100.0 57.7 46.2 48

64-4 182.4 82.7 12 4 — — — — 133.3 106.7 177.6 154.0 133.4 77.0 61.6 64

84-4 239.4 108.6 12 4 — — — — 175.0 140.0 — — 175.1 101.0 80.8 84

100-4 285.0 129.3 12 4 — — — — — 166.7 — — — 120.3 96.2 100

Maximum

steam

capacity

lbs/hr kg/h Qty. Stages** 120V 208V* 240V* 277V* 480V* 600V* 208V* 240V* 277V* 480V* 600V*

†

Heaters

Current draw (amps)

kWSingle-phase Three-phase***

* 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 DriSteem a transformer installed in the control cabinet. ** Heater stage identiﬁ es the number of contactors. *** Three-phase power supply connection. All heater loads are wired Delta.

†

Total humidiﬁ er load = load to meet design conditions + load to compensate for steam loss from the dispersion assembly and interconnecting

piping. If total humidiﬁ er load is more than the humidiﬁ er's maximum capacity, design conditions will not be met. For steam loss data see the

DriSteem Design Guide

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VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

available for downloading and printing at www.dristeem.com

Page 9

European models, capacities, and electrical speciﬁ cations

Table 5-1: Vaporstream European electrical specifications and capacities, tap/softened water and RO/DI water

SPECIFICATIONS

Vaporstream

model

(kW-stages)

2-1 1 1 1.8 8.0 2.4

3-1 1 1 2.8 12.0 3.6

4-1 1 1 3.7 16.0 4.7

5-1 1 1 4.9 21.3 6.3

6-1 3 1 5.5 24.0 7.1 6 8.7 7.8

9-1 3 1 8.3 35.9 10.7 9 13.0 11.6

12-1 3 1 11.0 47.9 14.2 12 17.3 15.5

16-1 3 1 16 23.1 20.7

21-1 3 1 21 30.3 27.1

25-1 3 1 25 36.1 32.3

12-2 6 2 11.0 47.9 14.2 12 17.3 15.5

18-2 6 2 16.5 71.9 21.4 18 26.0 23.3

24-2 6 2 22.1 95.8 28.3 24 34.6 31.0

32-2 6 2 32 46.2 41.4

42-2 6 2 42 60.6 54.3

50-2 6 2 50 72.2 64.6

18-3 9 3 16.5 71.9 21.4 18 26.0 23.3

27-3 9 3 24.8 107.8 32.1 27 39.0 34.9

36-3 9 3 33.1 143.8 42.7 36 52.0 46.5

48-3 9 3 48 69.3 62.1

63-3 9 3 63 90.9 81.4

75-3 9 3 75 108.3 97.0

24-4 12 4 22.0 95.8 28.5 24 34.6 31.0

36-4 12 4 33.1 143.8 42.7 36 52.0 46.5

48-4 12 4 44.2 191.7 56.6 48 69.3 62.1

64-4 12 4 64 92.4 82.7

84-4 12 4 84 121.2 108.6

100-4 12 4 100 144.3 129.3

* Heater stage identiﬁ es the number of contactors. ** Three-phase power supply connection. All heater loads are wired Delta. *** Total humidiﬁ er load = load to meet design conditions + load to compensate for steam loss from the dispersion assembly and interconnecting

piping. If total humidiﬁ er load is more than the humidiﬁ er's maximum capacity, design conditions will not be met. For steam loss data see the DriSteem Design Guide available for downloading and printing at www.dristeem.com

mc_022410_1710

Heaters Single-phase 230V Three-phase 400V **

Qty. Stages * kW I max. A

Steam capacity

kg/h***

kW I max. A

Steam capacity

kg/h***

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 10

SPECIFICATIONS

Dimensions

Table 6-1: Standard control cabinet dimensions and weights

Cabinet size

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

* Weight does not include humidiﬁ er.

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inches mm lbs kg

Cabinet dimensions Shipping weight*

Table 6-2: Control cabinet weights for European models

Cabinet dimensions Weight

mm kg

300 h x 300 w x 210 d 6

500 h x 700 w x 250 d 29

600 h x 800 w x 250 d 46

FIGURE 6-1: VAPORSTREAM DIMENSIONS, TAP/SOFTENED WATER AND RO/DI WATER

A’

VLC-OM-039 mc_030410_0900

B’

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 11

SPECIFICATIONS

Dimensions

Table 7-1: Vaporstream dimensions, tap/softened water and RO/DI water

Without mounted control cabinet

Vaporstream model (kW - stages)

2-1, 3-1, 4-1, 5-1 16.52 420 26.00 660 18.88 480

6-1, 9-1, 12-1, 16-1, 21-1, 25-1 22.25 565 22.00 559 18.88 480

12-2, 18-2, 24-2, 32-2, 42-2, 50-2 29.72 755 22.00 559 18.88 480

18-3, 27-3, 36-3, 48-3, 63-3, 75-3 37.22 945 22.00 559 18.88 480

24-4, 36-4, 48-4, 64-4, 84-4, 100-4 44.72 1136 22.00 559 18.88 480

Vaporstream model (kW - stages)

Max.

control

cabinet

size

A (length) B (width) C (height)

inches mm inches mm inches mm

With mounted control cabinet option

A’ (length 2) B’ (width 2) C’ (height 2)

inches mm inches mm inches mm

2-1, 3-1, 4-1, 5-1 M 21.22 539 34.00 864 30.31 770

6-1, 9-1, 12-1, 16-1, 21-1, 25-1 M 26.90 683 30.00 762 30.31 770

12-2, 18-2, 24-2, 32-2, 42-2, 50-2 L 30.90 785 30.00 762 34.11 866

18-3, 27-3, 36-3, 48-3, 63-3, 75-3 XXL 37.22 945 32.00 813 46.11 1171

24-4, 36-4, 48-4, 64-4, 84-4, 100-4 XXL 44.72 1136 32.00 813 46.11 1171

Notes:

• For all Vaporstream models with optional insulation, add 1" (25 mm) to dimensions A, C, and C’.

• Dimensions are largest possible for these models. Actual dimensions may be smaller.

mc_021010_0500

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 12

SPECIFICATIONS

Weights and cabinet sizes

Table 8-1: Vaporstream weights and control cabinet sizes, tap/softened water and RO/DI water

Vaporstream

model

(kW-stages)

2-1 35 16 79 36 M M M M M M — — — — —

3-1 35 16 79 36 M M M M M M — — — — —

4-1 35 16 79 36 M M M M M M — — — — —

5-1 35 16 79 36 M M M M M M — — — — —

6-1 57 26 157 71 — M M M M M M M M M M

9-1 57 26 157 71 — M M M M M M M M M M

12-1 57 26 157 71 — — — M M M M M M M M

16-1 57 26 157 71 — — — — M M M M M M M

21-1 57 26 157 71 — — — — M 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 L L

18-2 79 36 237 108 — L L L L L L L L L L

24-2 79 36 237 108 — — — L L L L L L L L

32-2 79 36 237 108 — — — — L L L L L L L

42-2 79 36 237 108 — — — — L 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 L L

27-3 110 50 326 148 — XL L L L L L L L L L

36-3 110 50 326 148 — — — XL L L L L L L L

48-3 110 50 326 148 — — — — L XXL XL L L L L

63-3 110 50 326 148 — — — — XL XXL — — L 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 L L

36-4 153 70 427 194 — XL XL XL L L L L L L L

48-4 153 70 427 194 — — — XL L L XL L L L L

64-4 153 70 427 194 — — — — XL XXL XL XL XL L L

84-4 153 70 427 194 — — — — XL XXL — — XL L L

100-4 153 70 427 194 — — — — — XXL — — — L XXL

Shipping

weight

lbs kg lbs kg 120V 208V 240V 277V 480V 600V 208V 240V 277V 480V 600V

Operating

weight

†

Single-phase power Three-phase power

Control cabinet size*

(M, L, XL, XXL)

* 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 DriSteem if you need more detailed information about control cabinet sizes. See control cabinet dimensions in Table 6-1.

†

Operating weight does not include control cabinet. See control cabinet weights in Table 6-1.

mc_021010_0446

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 13

Selecting a location

INSTALLATION

When selecting a location for the humidiﬁ er, consider the following:

• Easy access for maintenance

• Maximum ambient temperature for the control cabinet is 104 °F (40 °C).

• Noises inherent to operation:

– Fill cycles (tap/softened water humidiﬁ er)

See Fill noise in tap/softened water humidiﬁ er on Page 28.

– Control cabinet: cycling contactors

• Clearance recommendations — primarily top, left side, and front (see Figure 9-1).

• Convenient location to dispersion system for routing of steam hose or tubing (see Dispersion section of this manual).

• Electrical connections: Power, control, and safety circuits

• Plumbing connections: Supply water, drain piping, and condensate return piping (see the Piping section of this manual)

• Water seal requirements (see Piping section of this manual)

• Avoid locations above critical equipment or processes.

• Avoid locations close to sources of electromagnetic emissions, such as power distribution transformers and high horsepower motors controlled by variable frequency drives.

Important:

Installation must comply with governing codes.

See Dispersion, beginning on page 35, for dispersion assembly placement guidelines.

FIGURE 9-1: VAPORSTREAM CLEARANCE RECOMMENDATIONS

Top: 18" (457 mm)

Back: 6" (152 mm)*

Cleanout tray

Left side: 36" (914 mm)*

Floor: 24" (610 mm)*

* When the control cabinet is mounted on the Vaporstream, provide 36" (914 mm) clearance from the front of the control cabinet and 6" (152 mm)

from the bottom of the cabinet to the ﬂ oor.

Right side 6" (152 mm)

Cleanout plate

Back: 6" (152 mm)*

DC-1181

Front: 36" (914 mm)

Left side: 36" (914 mm)*

Floor: 24" (610 mm)*

Top: 18" (457 mm)

Right side 6" (152 mm)

OM-7637

Front: 36" (914 mm)

Cleanout plate

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 14

INSTALLATION

Mounting:

Overview

To ensure that the water level control system works properly, the tank must be mount ed level from side to side and front to back.

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 humidiﬁ er’s CE, ETL, and C-ETL approvals.

Table 10-1: Mounting options by model

Models

Mounting method

Trapeze X X

Support legs X

Wall brackets X X

Weather cover X X

Outdoor Enclosure X X

mc_022310_1354

2-1, 3-1, 4-1, 5-1 All other models

Standard Optional Standard Optional

WARNING

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.

mc_060110_1540

FIGURE 10-1: SUPPORT LEGS

VLC-OM-006

SUPPORT LEGS

Support legs are not available for single-heater models (2-1, 3-1, 4-1, and 5-1). These models must be mounted with a trapeze (Page 11) or an Outdoor Enclosure (Pages 14 through 21).

Use enclosed bolts, nuts, and washers to fasten legs to tank. Shim or adjust so the tank sets level side to side and front to back. Verify level after the tank is ﬁ lled and is at operating weight.

Optional set of four legs and hardware

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 15

INSTALLATION

Mounting:

For overhead installations, install a drip pan to prevent possible water damage (see ﬁ gure below).

Secure trapeze hanger to an overhead structure that is strong enough to support the operating weight of the Vaporstream humidiﬁ er and ﬁ eld installed piping, plus the weight of the control cabinet if it is mounted on the humidiﬁ er.

Adjust the mounting so that the tank sets level side to side and front to back. Verify level after the tank is ﬁ lled and is at operating weight.

FIGURE 11-1: TRAPEZE HANGER

Trapeze hanger

Overhead installation

Do not install water piping and humidiﬁ ers above expensive apparatus or equipment. A broken water pipe, leak ing valve gland, condensation or other water leaks can occur causing serious dam age and costly re pairs to the equip ment below.

If this type of installation cannot be avoided, install a drip pan constructed of galvanized sheet metal under the hu mid i ﬁ er to catch potential water drips (see Figure 11-1).

Pipe the overﬂ ow from the Vaporstream directly to a ﬂ oor drain — do not drain the Vaporstream into the drip pan. Terminate the drip pan and the Vaporstream overﬂ ow drains above an open ﬂ oor drain.

Vaporstream Models 2-1 through 5-1 Vaporstream Models 6-1 through 100-4

Secure channel to an overhead structure that is strong enough to support the Vaporstream's operating weight. See the weight tables in this document.

Secure rods to an overhead structure that is strong enough to support the Vaporstream's operating weight. See the weight tables in this document.

Provide 18" (457 mm) minimum clearance above cover

Cleanout

1¼" (DN32) minimum

VLC-OM-038

Angle iron

Hanger plate

Drip pan recommended in overhead installations (by installer) to prevent possible water damage

Humidiﬁ er drain to appropriate building waste. Do not drain humidiﬁ er directly into drip pan. Install water seal as shown in the piping section of this manual

25% larger than humidiﬁ er

Provide 18" (457 mm) minimum clearance above cover

Cleanout

1¼" (DN32) minimum

VLC-OM-005

Drip pan recommended in overhead installations (by installer) to prevent possible water damage

3/8" (M10) threaded rod of length required

Angle iron sized to properly support humidiﬁ er

Humidiﬁ er drain to appropriate building waste. Do not drain humidiﬁ er directly into drip pan. Install water seal as shown in the piping section of this manual

25% larger than humidiﬁ er

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 16

INSTALLATION

Mounting:

Wall brackets

DriSteem recommends using 3/8" (M10) fasteners.

• Wood stud wall, recommended mounting — two horizontal 2 × 4s (100 mm × 50 mm timbers) with center line spaced at dimension shown in Table 12-1.

– Three-heater models: lag bolt (coach screw) both horizontal 2 × 4s (100

mm × 50 mm timbers) to two vertical studs (16"

[404 mm] on center) – Six-heater and nine-heater models: lag bolt (coach screw) to three studs – 12-heater models: lag bolt (coach screw) to four studs

Lag bolt (coach screw) wall brackets to the horizontal 2 × 4s

(100 mm × 50 mm timbers). Locate the wall brackets so they are ﬂ ush to the front and back ﬂ anges of the tank.

• Metal stud wall — follow the same 2 × 4 wood stud (100 mm × 50 mm timber) wall guidelines, but provide a second set of 2 × 4s (100 mm × 50 mm timbers) on the backside of the wall. Run a bolt with a washer through the face 2 × 4 (100 mm × 50 mm timber), the metal stud, and the backside 2 × 4 (100 mm × 50 mm timber) with washer and nut to connect the 2 × 4s (100 mm × 50 mm timbers). DriSteem does not recommend mounting the nine-heater and 12-heater models on a metal stud wall — use support legs.

• Concrete or block walls — use concrete anchors (expansion bolts) rated for the operating weight of the Vaporstream humidiﬁ er. Locate the wall brackets so they are ﬂ ush to the front and back ﬂ anges of the tank.

FIGURE 12-1: WALL BRACKETS

24.75" (629 mm)

DriSteem optional wall brackets (two required)

VLC-OM-007

Table 12-1: Wall brackets Dimension A

(center to center of mounting holes)

Vaporstream model inches mm

Shim or adjust mounting so the tank sets level from side to side and front to back. Verify level after the tank is ﬁ lled and is at operating weight.

One-heater models: 2-1, 3-1, 4-1, 5-1

Three-heater models: 6-1, 9-1, 12-1, 16-1, 21-1, 25-1

Six-heater models: 12-2, 18-2, 24-2, 32-2, 42-2, 50-2

Nine-heater models*: 18-3, 27-3, 36-3, 48-3, 63-3, 75-3

Twelve-heater models*: 24-4, 36-4, 48-4, 64-4, 84-4, 100-4

* Wall bracket installation on metal stud walls

is not recommended for nine-heater and twelve-heater models

mc_022310_1345

17 432

28 711

34 864

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 17

Weather cover

INSTALLATION

FIGURE 13-1: WEATHER COVER EXPLODED VIEW

Panel

Hinged door

Panel

OM-7435

The optional Vaporstream weather cover is water-resistant and designed to protect the humidiﬁ er from rain and sun. The weather cover has been tested and approved by ETL Testing Laboratories, Inc., and is listed to UL Standard 1995 and certiﬁ ed to CAN/CSA Standard C22.2 No. 236.

Hinged door

INSTALLATION ISSUES SPECIFIC TO WEATHER COVER APPLICATIONS

• Installation must comply with all governing codes.

• The bottom of the weather cover is open to ac com mo date piping and electrical con nec tions.

• Electrical connections must be made with approved, outdoor-rated, watertight conduit.

• Freeze protection must be provided on all water piping.

• Steam supply must be insulated.

• Avoid using steam hose in outdoor applications — the effects of ultraviolet rays will prematurely age the steam hose.

• Installer required to drill a hole in weather cover for steam piping. Seal after making steam connection to maintain weather protection.

• The steam outlet must be isolated with a union so the steam supply can be dis con nect ed easily for removal of the weather cover to gain access to the Vaporstream for service and maintenance.

ANNUAL WEATHER COVER MAINTENANCE REQUIREMENTS

• Check all fasteners and verify they are secure.

• Check for any sign of leakage — trace back to origin and repair.

mc_022510_1235

Installation notes

Open the hinged doors to make necessary connections to the humidiﬁ er. Refer to the installation section of this manual for all elec tri cal, supply water, and drain con nec tion requirements.

Table 13-1: Weather cover weights

Weight*

Weather cover size

lbs kg

1-heater 390 177

3-heater 395 179

6-heater 430 195

9-heater 465 211

12-heater 500 227

* Weight does not include humidiﬁ er or

control cabinet.

mc_030210_0950

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 18

INSTALLATION

Weather cover

FIGURE 14-1: WEATHER COVER DIMENSIONS

Table 14-1: Weather cover dimensions

Letter Description

1-heater and

3-heater covers

inches mm inches mm inches mm inches mm

6-heater cover 9-heater cover 12-heater cover

OM-7434

Note:

Weather Covers are only available in the United States and Canada.

The Vaporstream Outdoor Enclosure is weather tight with access doors and supplemental heating and cooling. See Pages 14 through 21.

A Height 66 1676 66 1676 66 1676 66 1676

B Length 44 1118 44 1118 44 1118 44 1118

C Width 35 889 39 991 44 1118 50 1270

Distance from

bottom

6 152 6 152 6 152 6 152

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 19

INSTALLATION

Outdoor Enclosure:

FIGURE 15-1: VAPORSTREAM OUTDOOR ENCLOSURE WITH STANDARD OR OPTIONAL STEAM OUTLET, ELEVATION VIEW

Ventilation fan

See Note 2

4.5"

Knockouts, 4" (102 mm) on center

Enclosure drain 1½" pipe thread (DN40) with male nipple

mc_030410_1500

Overview

Pipe chase

Vaporstream humidiﬁ er

DC-1481

Standard steam outlet

Optional steam outlet

Notes:

1. The Outdoor Enclosure has two available steam dis tri bu tion conﬁ gurations:

The standard con ﬁ g u ra tion has a steam outlet

at the back of the Outdoor Enclosure for con nect ing to steam dispersion unit piping.

The optional internal steam dis tri bu tion

con ﬁ g u ra tion routes steam within the Outdoor Enclosure and down through the enclosure pipe chase into a building.

2. There are four knockouts located on the right and left side of the enclosure. Knockout sizes are 1½" (hole dia. 50 mm) for Vaporstream models with 1-6 heaters and 2" (hole dia. 63.5 mm) for Vaporstream models with 9-12 heaters. Run the electrical power into the en clo sure at these knockouts.

3. All piping from the Vaporstream unit to the steam outlet is stainless steel pipe. Depending on the application, interconnecting piping from the steam outlet to the dispersion assembly can be tubing or DriSteem steam hose. See the Dispersion section of this document for more information about connecting to the dispersion assembly.

4. A separate 20 amp, 120 Vac service must be brought to the Outdoor Enclosure to power the enclosure heaters and fans.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 20

INSTALLATION

Outdoor Enclosure:

FIGURE 16-1: VAPORSTREAM OUTDOOR ENCLOSURE, TOP VIEW

Standard steam outlet (exits enclosure here)

Optional steam outlet (exits enclosure through pipe chase)

Vaporstream hu mid i ﬁ er

Control cabinet

Note: Some 9-12 heater

models have control cabinet

mounted on humidiﬁ er

Front section optional heater

Front access door

mc_030410_1505

Overview

DC-1482

Enclosure drain

Front access door:

• Vaporstream models with 1-6 heaters have one acces door

• Vaporstream models with 9-12 heaters have two access doors

Pipe chase extending 1" (25 mm) above ﬂ oor

Side access door

Side section heater

Intake ven ti la tion fan

Table 16-1: Vaporstream Outdoor Enclosure dimensions*

Item Description

A Enclosure height 56.00 1422 56.00 1422

B Enclosure width 40.00 1016 54.00 1372

D 2.50 64 2.50 64

F 19.50 495 19.50 495

H 22.00 559 29.50 899

J 7.00 178 7.00 178

K 8.25 210 9.25 235

L Length 60.00 1524 64.00 1626

* See drawings above and on facing page.

mc_030410_1520

Pipe chase position

Pipe chase size

Steam hose and

tube position

with 1-6 heaters with 9-12 heaters

inches mm inches mm

2.50 67 2.50 67

8.00 203 8.00 203

13.50 343 13.50 343

Vaporstream models

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 21

INSTALLATION

Outdoor Enclosure:

Weights, electrical specifications, and connection sizes

Table 17-1: Vaporstream Outdoor Enclosure weights

Vaporstream model

2-1, 3-1, 4-1, 5-1 1 485 220 530 240

6-1, 9-1, 12-1, 16-1, 21-1, 25-1 3 515 234 620 281

12-2, 18-2, 24-2, 32-2, 42-2, 50-2 6 535 243 690 313

18-3, 27-3, 36-3, 48-3, 63-3, 75-3 9 860 390 1090 494

24-4, 36-4, 48-4, 64-4, 84-4, 100-4 12 910 413 1190 540

* Includes humidiﬁ er

mc_030410_1100

Number of

heaters

Table 17-2: Vaporstream Outdoor Enclosure electrical specifications

Maximum disconnect

Outdoor Enclosure without heater package

Outdoor Enclosure with heater package

Voltage Current

120 Vac,

50/60 Hz

120 Vac,

50/60 Hz

0.5A 6A

10.5A 20A

Outdoor Enclosure

shipping weight*

lbs kg lbs kg

Table 17-3: Vaporstream Outdoor Enclosure connection sizes

Description All Vaporstream models

Water makeup (ﬁ ll) 1/4” pipe thread (DN8)

Drain 3/4” (DN20)

Condensate return 3/4” pipe thread (DN20)

mc_030410_1101

Outdoor Enclosure operating weight*

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 22

INSTALLATION

Outdoor Enclosure:

Operating temperatures

The Outdoor Enclosure option is used when DriSteem humidiﬁ ers are installed outdoors. The following information is not intended to supersede any requirements of federal, state or local codes having jurisdiction; prior to installing the unit, consult authorities having jurisdiction.

DriSteem humidiﬁ ers housed in an Outdoor Enclosure operate properly from

-40 °F to 122 °F (-40 °C to 50 °C).

Insulate supply water piping to avoid dripping from condensation. To ensure that water will not remain in the ﬁ ll line and freeze if there is a loss of power, ﬁ eld-install additional valves in a conditioned space upstream of the ﬁ ll valve. These valves should be powered on the same circuit as the humidiﬁ er such that if the power goes off, water will drain out of the ﬁ ll line to prevent freezing. See Figure 18-1.

FIGURE 18-1: OPTIONAL INSTALLATION METHOD FOR WATER SUPPLY PIPING

Normally closed ﬁ ll valve (by factory)

Makeup water supply piping (by installer)

Open to drain Vent with check valve (by installer)

Disconnect by installer; see Detail A

120V supply Refer to Table 16-2 for electrical requirements.

Building exterior

Roof decking

120V from unit disconnect or other source

Normally closed (fail closed) min. ¼” electric valve (by installer)

Domestic water, 80 psig max.

* Locate air gap only in spaces with adequate temperature and air movement to absorb ﬂ ash steam; otherwise, condensate may form on nearby

surfaces. Refer to governing codes for drain pipe size and maximum discharge water temperature.

1” (25 mm) air gap and open drain required*

Drain line

Optional water seal, by installer. Standard water seal is within the enclosure and is prepiped at the factory.

Normally open (fail open) min. ½” electric valve (by installer)

Heated building interior

Detail A: Disconnect box

120V

To valve (by installer)

To humidiﬁ er

mc_030410_1515

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 23

INSTALLATION

Outdoor Enclosure:

Mounting

• Outdoor Enclosure must be level and located so there is enough clearance for opening access doors.

• Verify that position of support legs, pad, or curb properly support unit, and support structure dimensions coincide with unit dimensions.

• Locate unit so air intakes are not too close to exhaust fan outlets, gasoline storage, or other contaminants that could cause dangerous situations. Using and storing gasoline or other ﬂ ammable vapors and liquids in open containers in the vicinity of this appliance is hazardous.

• When located on roof, Outdoor Enclosure air intakes must be a minimum of 14" (356 mm) above roof to prevent intake of snow or splashed rain. Locate Outdoor Enclosure so prevailing winds do not blow into air intakes.

• Remove all shipping brackets and other packaging prior to installing Outdoor Enclosure.

• During transit, unloading, and setting of unit, bolts and nuts may have become loosened. Check that all nuts are tightened.

• There are four knockouts on the right and left side of the enclosure. It is recommended that electrical power is run into enclosure at these knockouts.

• Outdoor Enclosure is designed for lifting by two methods:

– Preferred method of lifting is by forklift. This is only possible if the forks

extend across entire unit. Forks that do not extend across entire unit could cause tipping, resulting in unsafe conditions or damage to the unit.

– Alternative method of lifting is through unit’s channel base frame and/

or special lifting lug hooks installed on the unit. Use a load spreader of sufﬁ cient width to ensure that lifting cables clear sides of unit. If such a spreader is not available, insert wood strips between cables and unit where necessary. All four lifting points must be used; they are marked “lift here” on the unit.

In both cases it must be lifted from the bottom base and kept level, and

it must not tip, fall, or twist. If unit is severely twisted during handling, permanent damage could occur. It is installer’s responsibility to verify handling equipment’s capability to safely handle Outdoor Enclosure.

FIGURE 19-1: OUTDOOR ENCLOSURE MOUNTING OPTIONS

Flush

DC-1110

Curb

OM-1095

14" (356 mm)

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 24

INSTALLATION

Outdoor Enclosure:

Mounting

• Outdoor Enclosure has two available steam distribution conﬁ gurations:

– Standard conﬁ guration is a steam outlet on one side of enclosure for

connecting to steam dispersion unit piping.

– Optional internal conﬁ guration routes steam within Outdoor Enclosure

and down through pipe chase into building.

• See Outdoor Enclosure dimensions in Table 16-1.

• Pipe chase is inside enclosure. Cover for pipe chase is provided to maintain proper pressure in enclosure if this opening is not utilized. However, it is recommended that this pipe chase be used for both supply water piping and drain piping, in which case pipe chase cover should be removed. Install insulation rated for 212 °F (100 °C) to completely ﬁ ll area around pipes to maintain proper enclosure pressure.

• When enclosure is pad mounted or when pipe chase cannot be used, supply water and drain piping can be run through the knockouts — preferably on side opposite utility connections.

• When ordered with heater package, two thermostat-controlled strip heaters are provided to keep enclosure at constant minimum temperature: one heater is in control cabinet section, and one heater is in front section.

• Enclosure drain is provided. In case of water leak, water will drain from enclosure through this drain.

FIGURE 20-1: OUTDOOR ENCLOSURE CLEARANCES

Left side: 12" (305 mm)

Front: 36" (914 mm)

Top: 12" (305 mm)

Back: 24" (610 mm)

OM-955

Right side: 36" (914 mm)

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 25

INSTALLATION

Outdoor Enclosure:

Mounting

• Keypad/display with standard 5' (1.5 m) cable ships mounted to subpanel in Outdoor Enclosure. Keypad/display must not come in contact with strip heaters or block intake ventilation hood.

• If constant monitoring of unit is desired, or if unit is located in a severe climate, a remote-mount keypad/display should be installed. Additional cable lengths up to 500 feet (152 m) are available as an option for this mounting conﬁ guration.

• 16-gauge galvanized steel curbs (optional) are shipped unassembled for ease of transporting to roof; they include all hardware for bolt-together assembly, and all holes are matched before leaving factory. Curb must be a minimum of 14" (356 mm) high. One 2" × ½" closed-cell curb gasket with adhesive on one side is supplied with hardware. Gasket must be installed between top of curb and base surface of Outdoor Enclosure to prevent moisture from leaking into building from driving rain or melting snow. Installation drawing is included.

• Four symmetrically shaped stand legs (optional) are include all necessary hardware for elevating Outdoor Enclosure 14" (356 mm) from ground. Stand legs should be securely mounted to grade by installing contractor. To prevent outdoor environment from penetrating enclosure, close-off provisions must be made between stand legs.

• All piping from humidiﬁ er to steam outlet is stainless steel pipe. Depending on application, interconnecting piping from steam outlet to dispersion assembly can be DriSteem steam hose or tubing.

FIGURE 21-1: TYPICAL ROOFTOP INSTALLATION OVERVIEW

Humidiﬁ er in Outdoor Enclosure

Electrical con nec tions

Remote Vapor-logic keypad

Drain piping

Water piping

Roof surface

OM-7609

Steam piping

Curb

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 26

INSTALLATION

Outdoor Enclosure: Operation

When power is applied to Outdoor Enclosure:

• If ambient temperature in Outdoor Enclosure is below 50 °F (10 °C), the strip heaters will power up. Humidiﬁ er is not allowed to operate unless temperature inside enclosure is at least 35 °F (2 °C). Strip heaters power down when temperature in Outdoor Enclosure reaches 50 °F (10 °C). Humidiﬁ er's aquastat feature allow's humidiﬁ er to continue operating until it reaches a factory default tank temperature of 70 °F (21 °C). This temperature can be ﬁ eld-reset up to 180 °F (82 °C).

• If temperature in enclosure is at or above 85 °F (30 °C) but less than 150 °F (66 °C), two ventilation fans turn on to cool the electronic components.

• If temperature in enclosure is 150 °F (66 °C) or higher, a high limit switch powers down humidiﬁ er, and the ventilation fans continue to run. When enclosure temperature falls below 130 °F (54 °C), humidiﬁ er automatically resumes normal operation.

• If there is a power loss to Outdoor Enclosure, normally-open (fail-open) drain valve drains humidiﬁ er.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 27

INSTALLATION

Piping:

FIGURE 23-1: FIELD PIPING OVERVIEW, VAPORSTREAM WITH TAP/SOFTENED WATER

Optional condensate return piping from dispersion unit

Air vent tube

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.

• Offset humidiﬁ er from ﬂ oor drain to prevent ﬂ ash steam from rising into the humidiﬁ er.

• Dashed lines indicate provided by installer.

• The water supply inlet is more than 1" (25 mm) above the skim/overﬂ ow port, eliminating the possibility of backﬂ ow or siphoning from the tank. No additional backﬂ ow prevention is required; however, governing codes prevail.

• Damage caused by chloride corrosion is not covered by your DriSteem warranty.

mc_022310_1255

Overview, tap/softened water

Steam outlet

Install level

VLC-OM-010

6" (150 mm) minimum

Air vent height must be equal to or greater than dimension H2 (see Table 23-1).

¾" (DN20) minimum condensate drain piping rated for 212 °F (100 °C)

Install level

¾" pipe thread (DN20) dispersion unit condensate return inlet

Shock arrester recommended to reduce water hammer

Water supply line; water pressure 25 to 80 psi (172 to 552 kPa). If water piping to humidiﬁ er is nonmetallic, ﬁ rst 3' (1 m) of water supply piping from humidiﬁ er should be metallic. To isolate steam from nonmetallic supply piping, put a 2" (50 mm) water seal or loop in supply line.

Manual or electric drain valve

¾" (DN20) min. drain, skim, and overﬂ ow piping rated for 212 °F (100 °C)

If run is over 10' (3 m), increase pipe to 1¼" (DN32)

Pitch 1/8"/ft

(1%)

See H1 in Table 23-1

Open drain required. See ﬁ rst note below.

Flow line of drain piping after water seal must

Drain piping

be below drain valve to ensure humidiﬁ er

ﬂ ow line

drains correctly.

1" (25 mm) air gap

Table 23-1: Heights required to overcome Vaporstream internal pressure (H1, H2)

Unit output Water seal height (H1) Air vent height (H2)

kW lbs/hr kg/h inches mm inches mm

≤ 48 ≤ 138 ≤ 62 12 305 22.5 572

49-64 139–183 63–83 15 381 27.5 699

> 64 > 183 > 83 18 457 30.5 775

mc_022310_1325

FIGURE 23-2: PIPING, VAPORSTREAM WITH TAP/SOFTENED WATER, MODELS 2-1 THROUGH 5-1

Fill valve

OM-4005

Drain valve

Overﬂ ow port

Drain piping

mc_030210_1800

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 28

INSTALLATION

Piping:

FIGURE 24-1: FIELD PIPING OVERVIEW, VAPORSTREAM WITH RO/DI WATER OPTION

Optional condensate return piping from dispersion unit

Air vent tube

6" (150 mm) minimum

Notes:

• Offset humidiﬁ er from ﬂ oor drain to prevent ﬂ ash steam from rising into the humidiﬁ er.

• Dashed lines indicate provided by installer.

• The water supply inlet is more than 1" (25 mm) above the overﬂ ow port, eliminating the possibility of backﬂ ow or siphoning from the tank. No additional backﬂ ow prevention is required; however, governing codes prevail.

• Damage caused by chloride corrosion is not covered by your DriSteem warranty.

mc_022310_1300

Overview, RO/DI water option

Steam outlet

Install level

VLC-OM-011

Air vent height must be equal to or greater than dimension H2 (see Table 22-1).

¾" (DN20) minimum condensate drain piping rated for 212 °F (100 °C)

Install level

¾" pipe thread (DN20) dispersion unit condensate return inlet

¾" (DN20) drain valve

Overﬂ ow

Water supply line; water pressure 25 psi to 80 psi (172 kPa to 552 kPa); ﬁ rst 3' (1 m) should be stainless steel tubing. To isolate steam during system maintenance, put a 2" a (50 mm) water seal or loop in supply line.

Strainer, by installer

Pitch 1/8"/ft

See H1 in Table 23-1

Open drain required. See ﬁ rst note below.

(1%)

¾" (DN20) min. drain overﬂ ow piping rated for 212 °F (100 °C)

If run is over 10' (3 m), increase pipe to 1¼" (DN32)

Flow line of drain piping after water seal must be below drain valve to ensure humidiﬁ er

Drain piping

ﬂ ow line

drains correctly.

1" (25 mm) air gap

FIGURE 24-2: PIPING, VAPORSTREAM WITH RO/DI WATER, MODELS 2-1 THROUGH 5-1

Fill valve

Skimmer port

OM-4004 mc_030210_1802

Drain valve

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 29

INSTALLATION

Piping:

Drain

The drain line piped from the humidiﬁ er must be run to an approved sanitary waste or suitable drain. If nonmetallic pipe or hose is used, it must be rated for 212 °F (100 °C) minimum continuous operating temperature.

Minimum drain pipe size is 3/4" (DN20) inside diameter. If the length of the drain piping exceeds 10' (3 m), increase the pipe size to 1¼" (DN32) pipe.

Do not locate the humidiﬁ er directly above a ﬂ oor drain — skim and drain water dumped into the drain will cause ﬂ ash steam. This steam will rise and saturate electrical components, adversely affecting component life and performance.

An open drain with a 1" (25 mm) air gap between the drain piping and the drain is required. Locate air gap only in spaces with adequate temperature and air movement to absorb ﬂ ash steam, or condensing on nearby surfaces may occur.

Governing codes may require that the 212 °F (100 °C) drain and skim water from the humidiﬁ er be tempered before it is discharged into the building drain piping. The Drane-kooler option will temper 6 gpm (22.7 L/m) of 212 °F (100 °C) water to 140 °F (60 °C).

FIGURE 25-1: DRANE-KOOLER™ WATER TEMPERING DEVICE

OM-956

DriSteem's Drane-kooler, shown mounted to a Vaporstream humidiﬁ er, tempers discharged water temperature. For other Drane-kooler mounting options or for more information, contact DriSteem or view the Drane-kooler product data sheet in the literature section at www.dristeem.com

To allow normal operation and prevent steam from escaping through the drain line, the installer must provide a water seal of sufﬁ cient height to contain the pressure developed in the humidiﬁ er system. See Table 23-1 for water seal

heights.

Drain piping after the water seal must be pitched a minimum of 1/8"/ft (1%) toward the drain. Governing codes may require more pitch.

If the proximity of a drain requires the humidiﬁ er drain and skim water to be lifted by a pump, DriSteem offers a condensate pump option (see Figure 25-1). A check valve is required on the discharge of the pump. Electrical power for the pump is independent of the humidiﬁ er. Plug the pump into a wall outlet; an integral ﬂ oat switch turns the pump on and off.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 30

INSTALLATION

Piping:

TAP/SOFTENED WATER

Drain

The drain connection to a tap/softened water humidiﬁ er is a ¾" (DN20) sweat (soldered) ﬁ tting. The installer should place a union directly after the factory drain ﬁ tting, provide a water seal of height H1 (from Table 23-1), and pipe. To mount the humidiﬁ er closer to the ﬂ oor, see Figure 25-1. The installer needs to rework the factory piping that connects the drain valve to the skim/overﬂ ow ﬁ tting, cut out the elbow, and repipe per the diagram.

RO/DI WATER OPTION

RO/DI systems have a 3/4" pipe thread (DN20) ﬁ tting on the drain valve and on the overﬂ ow ﬁ tting. Prior to dumping into a drain, the installer needs to connect the drain and overﬂ ow, provide a water seal of height H1 (from Table 23-1), and pipe.

Figure 25-2 provides ﬁ ll and drain alternatives for Vaporstream humidiﬁ ers with the RO/DI option.

FIGURE 26-1: LIFTING WATER DRAIN

Inlet drain water piping, by installer

DC-1117

Condensate pump

Note: Use a condensate pump rated for your application. Pumps are rated by ﬂ uid temperature, head (pressure), and ﬂ ow (gpm). Contact your local DriSteem representative for pump selection.

mc_022410_1155

Discharge piping by installer

Check valve

FIGURE 26-2: FILL AND DRAIN ALTERNATIVES FOR VAPORSTREAM HUMIDIFIERS WITH THE RO/DI WATER OPTION

Without end-of-season drain With optional end-of-season drain

Fill valve

Skimmer port

Drain valve

OM-7789

Drain valve

OM-4004

Fill valve

Skimmer port

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 31

INSTALLATION

Piping:

Drain

Vaporstream with RO/DI water option and manual drain has a pipe thread ﬁ tting on the drain valve and on the skim/overﬂ ow ﬁ tting. Prior to dumping into a drain, the installer needs to connect the drain and skim/overﬂ ow, provide a water seal of height H1 (see Table 23-1), and pipe.

DRAIN CONNECTION

Note: This section applies to all tap/softened water Vaporstream models and

all Vaporstream models with the RO/DI and auto drain options.

The installer should install a water seal of height H1 (see Table 23-1).

The drain connection provided is a ProBite™ quick connection. Connect as follows:

1. See Warning and Caution at left.

2. Cut drain line to length for insertion depth shown below for your ProBite connector size. Cut must be clean and smooth.

3. Ream and de-burr drain line before connecting to ProBite connection. Make sure drain line is clean, round, and free from damage.

4. Mark insertion depth on drain line according to table below for your ProBite connection size.

5. Push drain line into ProBite connection to insertion depth marked in Step 4.

FIGURE 27-1: DRAIN CONNECTION (ALL MODELS EXCEPT VAPORSTREAM WITH RO/DI WATER OPTION AND MANUAL DRAIN)

ProBite ﬁ tting

WARNING

Do not insert ﬁ ngers or any body part into ProBite connection openings

Insert only piping into ProBite connection. Inserting ﬁ ngers or any body part could require emergency medical attention for removal.

CAUTION

ProBite installation precautions

To avoid damage to the ProBite connection:

• In addition to DriSteem drain piping material requirements on the facing page, ProBite ﬁ ttings are compatible only with copper, PEX, CPVC or stainless steel.

• Do not solder within 10" (250 mm) of the ProBite connection.

• Do not use heat or glue when installing the ProBite connection.

OM-7644

Connector size

3/4" 1

Insertion depth (D)

in. mm

Drain line

27 mm

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 32

INSTALLATION

Piping:

Water supply

Vaporstream humidiﬁ ers have a 1" (25 mm) in ter nal air gap to pre vent back siphoning into a potable wa ter system. Some gov ern ing codes may re quire ad di tion al pro tec tion, such as a vac u um breaker or backﬂ ow preventer.

The sup ply wa ter pres sure range must be 25 to 80 psi (172 to 552 kPa).

TAP/SOFTENED WATER SUPPLY PIPING

The water sup ply as sem bly for a tap/softened water Vaporstream humidiﬁ er in cludes a strain er, nee dle valve, and ﬁ ll solenoid. The pipe connection is a 1/4" pipe thread (DN8), except for Vaporstream humidiﬁ ers in Europe, which have a 3/8" pipe thread (DN10) connection.

When using nonmetallic tubing for supply water, it must be rated for 212 °F (100 °C) minimum continuous operating temperature. DriSteem recommends installing 3' (914 mm) of non-insulated metallic pipe directly off the humidiﬁ er (between the humidiﬁ er and the nonmetallic tubing).

If using nonmetallic supply water tubing, DriSteem recommends making a 2" (50 mm) water seal or loop in the supply line to isolate steam from the nonmetallic tubing. See Figure 22-1.

The minimum water conductivity for tap/softened water Vaporstream humidiﬁ ers is 30 μS/cm.

FILL NOISE IN TAP/SOFTENED WATER HUMIDIFIER

The pri ma ry com po nent of the wa ter sup ply as sem bly is the so le noid valve; therefore, noise can be expected during ﬁ ll cycles.

If water hammer occurs when the ﬁ ll solenoid closes, the best solution is to install a shock arrester. The noise might be diminished by reducing the supply water pressure (minimum 25 psi [172 kPa]) or using ﬂ exible tubing rated for 212 °F (100 °C) minimum continuous operating temperature.

Note:

Damage caused by chloride corrosion is not covered by your DriSteem warranty.

CAUTION

Hot discharge water

Discharge water can be as hot as 212 °F (100 °C) and can damage the drain plumbing.

To prevent such damage from humidiﬁ ers without water tempering, allow the tank to cool before draining.

Excessive supply water pressure

Supply water pressure greater than 80 psi (550 kPa) can cause the humidiﬁ er to overﬂ ow.

mc_030910_1440

During a ﬁ ll cycle, the sup ply wa ter drops the wa ter tem per a ture in the tank and may collapse the steam, which can cause a low rolling sound. To diminish this, adjust the nee dle valve to de crease the wa ter ﬁ ll rate and/or use hot supply water.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 33

Water supplyPiping:

RO/DI WATER SUPPLY PIPING

The RO/DI-water Vaporstream humidiﬁ er controls water level with a ﬂ oat valve. The pipe connection is a 1/4" pipe thread (DN8), except for Vaporstream humidiﬁ ers in Europe, which have a 3/8" pipe thread (DN10) connection.

With the end-of-season drain option, a solenoid valve is added on the inlet of the ﬂ oat valve. The end-of-season feature shuts off the ﬁ ll water supply and drains the tank when there is no demand for humidity for 72 hours. (This length of time is a default setting and is user-adjustable. See the Vapor-logic Installation and Operation Manual for more information.)

When using nonmetallic tubing for supply water, it must be rated for 212 °F (100 °C) minimum continuous operating temperature. DriSteem recommends installing 3' (914 mm) of non-insulated stainless steel pipe directly off the humidiﬁ er (between the humidiﬁ er and the nonmetallic tubing).

If using nonmetallic supply water tubing, DriSteem recommends making a 2" (50 mm) water seal or loop in the supply line to isolate steam from the nonmetallic tubing. See Figure 23-1.

INSTALLATION

WARNING

Fire hazard

Do not supply a RO/DI-water Vaporstream humidiﬁ er with tap water. Particulates from tap supply water will accumulate on and clog the low water cutoff switch in the ﬂ oat valve assembly, causing a critical safety circuit to fail. This can cause a dry tank ﬁ re and severe personal injury or death.

DriSteem recommends installing a strainer in the water supply line to prevent clogging of the ﬂ oat valve oriﬁ ce. A strainer is highly recommended when the humidiﬁ er has the end-of-season drain option. The strainer will prevent particulate from collecting at the solenoid valve seat.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 34

INSTALLATION

Wiring:

WIRING DIAGRAM OVERVIEW

Overview

• Ladder style wiring diagrams (located inside the control cabinet door) show power, control, and humidiﬁ er to control cabinet interconnection requirements.

• Heater connection diagrams (located under the humidiﬁ er terminal cover) show bussing and wire connections to heaters.

• External connections diagrams (located inside the control cabinet door) show connection points to the microprocessor-based controller and wire terminals for external safety and control devices, airﬂ ow proving switches, high limits, transmitters, or humidistats.

All wiring must be in accordance with all governing codes and with Vaporstream wiring diagrams.

ELECTRICAL INSTALLATION

Wiring and branch circuit protection is provided by the installer per the National Electrical Code (NEC) or in Europe, IEC 60364. For power supply and machine ground con nec tions, size the wire using the 75 °C wiring table, per the NEC (or IEC 60364). Then use copper conductors rated for a 105 °C en vi ron ment. The wiring from the control cabinet to the humidiﬁ er must be rated for 105 °C.

Verify electrical current characteristics — voltage, phase and amp draw — and capacity requirements against those listed on the name plate.

SERVICE DISCONNECT

A service disconnect must be installed per NEC requirements and/or governing codes.

WARNING

Electric shock hazard

Only qualiﬁ ed electrical personnel should perform ﬁ eld wiring installation procedures. Improper wiring or contact with energized circuits can cause property damage, severe personal injury, or death as a result of electric shock and/or ﬁ re.

Do not open control cabinet or remove heater terminal or subpanel access panels until electrical power is disconnected.

CAUTION

Damage from debris

When drilling penetrations in the control cabinet, protect all internal components from debris, and vacuum out the control cabinet when ﬁ nished. Failure to comply with this directive can damage sensitive electronic com po nents, cause erratic operation or failure, and void your DriSteem warranty.

• For single stage units, the fuse block and fuses are omitted in the control cabinet; therefore, the installer MUST provide a FUSED disconnect.

• Multiple stage units require a service disconnect (provided by the installer).

For European models, locate the disconnect per IEC 60364. Refer to the detailed drawing of the disconnect location on Page 31 of this document.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Important:

Failure to follow these wiring procedures can result in erratic operation or failure.

This product has been tested at the factory for proper operation. Product failures resulting from faulty handling, incorrect wiring, or shorting of wires together on external components are not covered under your DriSteem warranty. Review information and di a grams before proceeding.

Page 35

INSTALLATION

Wiring:

CONTROL CABINET

Overview

The length of wire from the control cabinet to the humidiﬁ er must not exceed 50' (15 m).

The left side of the control cabinet is the control circuit side, and the right side is the power circuit side. Place conduit connection holes in the control cabinet so that the control and power wire routing is limited to their respective sides of the control cabinet.

Control wiring and power wiring must be run in ded i cat ed or separated earthed metal conduit, cable trays, or trunking.

The control cabinet should be mounted in a location convenient for service with a minimum of 36" (914 mm) clearance in front of the door.

The installer is responsible for making electrical connections at the power block, contactors, and heater lugs. Torque requirements for power block lugs are identiﬁ ed on the side of the power block.

FIGURE 31-1: CONTROL CABINET PENETRATIONS

Low voltage conduit penetration

Allow minimum of 36" (914 mm) from front for cabinet access

Incoming power conduit penetration, hole size determined by humidiﬁ er load, volts, and phase

Cabinet door hinge

VLC-OM-028

Heater wire connection. Hole size determined by amp draw. Check governing codes

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 36

INSTALLATION

Wiring:

European requirements

Table 32-1: European wiring requirements

230 volt single phase 400 volt three phase

Amps Wire size mm

0 - 18 2.5 2.5 0 - 15.7 2.5 2.5

18.1 - 24 4 4 15.8 - 21 4 4

24.1 - 30.7 6 6 21.1 - 27 6 6

30.8 - 42.7 10 10 27.1 - 37.5 10 10

42.8 - 57 16 16 37.6 - 51 16 16

57.1 - 75.7 25 16 51.1 - 66.7 25 16

75.8 - 93.7 35 16 66.8 - 82.5 35 16

93.8 - 113.2 50 25 82.6 - 100.5 50 25

113.3 - 144 70 35 100.6 - 128.2 70 35

144.1 - 174 95 50 128.3 - 155.2 95 50

Ground wire size mm

Amps Wire size mm

Ground wire size mm

174.1 - 201.7 120 70 155.3 - 179.2 120 70

mc_062310_0615

FIGURE 32-1: EUROPEAN DISCONNECT LOCATION REQUIREMENTS

Table 32-2: European breaker requirements

I max. A Breaker size

0 - 8.0 10

8.1 - 10.4 13

10.5 - 12.8 16

12.9 - 16 20

16.1 - 20 25

20.1 - 25.6 32

25.7 - 32 40

32.1 - 40 50

40.1 - 50.4 63

50.5 - 64 80

64.1 - 80 100

80.1 - 100 125

Humidiﬁ er

control

cabinet

Fused

disconnect

sized per

tables

Power

supply/cable

sized per

tables

0.06 m - 1.9 m

(1.7 m preferred)

Note:

VLC-OM-029

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

See tables on this page.

100.1 - 128 160

128.1 - 160 200

mc_062310_0616

Page 37

INSTALLATION

Wiring:

Preventing electrical noise

Electrical noise can produce undesirable effects on electronic control circuits, thereby affecting 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.

Most electrical noise problems can be prevented by using proper wiring practices and techniques to prevent coupling or inducing of electrical interference into control circuits. The following wiring practices should minimize interaction of noise and controls:

• Connect humidiﬁ er and control cabinet to a code approved earth ground.

• Separate the line voltage wiring from low voltage control circuit wiring when routing electrical wiring inside the control cabinet.

• Use separate electrical conduits for line and low voltage wiring to the humidiﬁ er.

• Do not use chassis or safety grounds as current-carrying commons. A safety ground should never be used as a conductor or neutral to return circuit current.

WARNING

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.

mc_060310_0725

Important:

Do not use shielded (screened) cable for water level control devices.

• When wiring external electrical connections to humidistats, humidity and temperature transmitters, or control signal input connections from a building control system, use 18-gauge minimum (1 mm2) plenum-rated twisted pair wire with cable shielding (screening) and drain wire for grounding.

• Return all shielded (screened) cable connections to the control cabinet for grounding. Do not ground shield at the device end.

FIGURE 33-1: WATER LEVEL CONTROL WIRING FOR VAPOR-LOGIC

Black, top probe rod (full water condition)

White, middle probe rod (reﬁ ll water condition)

Red, bottom probe rod: Low water condition, tap/softened water

Low water cutoff switch, RO/DI water

Low water cutoff switch (RO/DI water only)

OM-VL3-11

TOP

MID

LOW

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 38

INSTALLATION

Wiring:

CONTROL WIRING

Control wiring and grounding requirements

The following wiring methods for external low voltage control wiring should minimize electrical noise problems:

• Humidistat, room/duct transmitter, and temperature transmitter wiring must be minimum 18-gauge (1 mm2) plenum rated, shielded (screened), twisted pair wire with a bare drain wire for grounding.

• Airﬂ ow proving switch wiring must be minimum 18-gauge (1 mm2) stranded wire run in conduit. The airﬂ ow proving switch can be wired using minimum 18-gauge (1 mm2) plenum rated, shielded (screened), twisted pair wire with a bare drain wire for grounding.

• The shield (screen) wire should be connected to the shield (screen) ground terminal/lug with a length less than 2" (51 mm). Do not ground the shield (screen) wire on the humidistat or transmitter end.

• Water level control device, thermal trip, humidiﬁ er cover interlock, ﬁ ll valve, and drain valve wiring must be minimum 18-gauge stranded wire run in a separate conduit from power wires. DO NOT USE SHIELDED (SCREENED) CABLE FOR WATER LEVEL CONTROL DEVICES.

• The tank temperature sensor can be run with 18-gauge (1 mm2) stranded wire if the control cabinet is located within 10' (3 m) of the humidiﬁ er. For wire lengths of 10' to 50' (3 m to 15 m), use 18-gauge (1 mm2) plenum rated, shielded (screened), twisted pair wire with a bare drain wire for grounding.

Important:

Installing the keypad/display

If the keypad/display has been shipped loose, mount it in a convenient location for easy access, but not inside the control cabinet. Mount the keypad/display using a ﬁ eldsupplied network phone wall plate. To mount, slide the keypad/display onto the tabs on the phone plate.

Note that the keypad/display requires an ambient temperature range of 32 ºF to 122 ºF (0 ºC to 50 ºC) to operate properly. Exceeding these limits results in a poor reading or no reading.

GROUNDING REQUIREMENTS

The approved earth ground must be made with solid metal-to-metal connections and must be a good con duc tor of radio frequency interference (RFI) to earth (multistranded conductors).

Ground wire should be the same AWG (mm2) size as the power wiring or sized per NEC requirements (in Europe, IEC 60364 requirements).

When the control cabinet is mounted remotely from the humidiﬁ er, a ground wire is necessary from the machine ground lug on the humidiﬁ er to the machine ground lug in the control cabinet. The bonding machine ground wire should be the same AWG (mm) as the largest heater wire or sized per NEC or IEC 60364 requirements.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 39

Sensor placement

INSTALLATION

SENSOR LOCATION IS CRITICAL

Sensor location has a signiﬁ cant impact on humidiﬁ er performance. See the recommendations below.

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

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 humidiﬁ cation 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 airﬂ ow patterns in ducts and space environments

• Electrical noise or interference

mc_072011_1656

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.

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.

mc_072011_1655

FIGURE 35-1: RECOMMENDED SENSOR LOCATIONS

High limit humidistat or high limit transmitter (set at 90% RH maximum) for VAV applications

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

Outside air

Relief air

mc_060508_0750

Damper control

Return air

DC-1084

Window

Doorway

Air handling

unit

Wall or partition

(2.4 m to 3.7 m)

Window

8' to 12'

min.

Temperature compensation option: Place a temperature compensation sensor on the lower corner of the inside surface of double-pane window glass on north- or northeast-facing window.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 40

INSTALLATION

Dispersion:

Selecting the dispersion assembly location

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.

• Non-wetting distance is the dimension downstream from the leaving side of the steam dispersion assembly to the point where wetting will not occur, although wisps of steam may be present. This distance was calculated during humidiﬁ cation system design and is dependent on several application parameters. To determine your dispersion assembly’s non-wetting distance, consult your system’s design engineer or project documentation. Non-wetting distance can also be calculated using DriSteem’s Dri-calc sizing and selection software, available at www. dristeem.com. Note that your current design conditions may vary from conditions used for system design.

• 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.

WARNING

Hot surface and steam hazard

Dispersion tube, steam hose, tubing, or hard pipe 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.

mc_060110_1555

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.

mc_060210_0843

• 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.

mc_060210_0838

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 41

INSTALLATION

Dispersion:

Interconnecting piping requirements

The steam outlet on the humidiﬁ er is sized to the output of the humidiﬁ er. DO NOT use steam hose or interconnecting tubing with an inside diameter smaller than the humidiﬁ er steam outlet. See note at right.

• See maximum steam carrying capacities in Table 38-1.

• If the humidiﬁ er must be located higher than the dispersion assembly, use the recommended installation shown in Figure 40-1.

CONNECTING TO HUMIDIFIER WITH STEAM HOSE

• Support steam hose to prevent sags, or low spots, and to maintain a minimum pitch of 2"/ft (15%) back to the humidiﬁ er.

• 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 tank foaming and accelerated 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.

Important:

Reducing the inside diameter of the interconnecting piping will result in the internal humidiﬁ er system pressure exceeding the parameters for acceptable performance.

mc_060210_0847

FIGURE 37-1: ULTRA-SORB WITH THE HIGH-EFFICIENCY TUBE OPTION

CONNECTING TO HUMIDIFIER WITH TUBING

• See Table 42-2 for interconnecting tubing pitch requirements for single tube and multiple tube applications. See Table 47-1 for interconnecting tubing pitch requirements for Rapid-sorb applications.

• Support interconnecting piping between the humidiﬁ er steam outlet and the dispersion system with pipe hangers. Failure to properly support the entire steam piping weight may cause damage to the humidiﬁ er tank and void the warranty.

• 90° elbows are not recommended; use two 45° elbows, 1' (0.3 m) apart.

• Insulating tubing reduces the loss in output caused by condensation.

mc_060310_1145-NA

High-efficiency Tube option

Dispersion assemblies with the High-efﬁ ciency Tube option are designed to produce signiﬁ cantly less dispersion-generated condensate and airstream heat gain, which reduces wasted energy by up to 85%. These improvements are accomplished by reducing the thermal conductivity of the tubes with 1/8" of polyvinylidene ﬂ uoride (PVDF) insulating material on the outside of the tubes. These assemblies require careful unpacking, installation, and handling. If your dispersion assembly has the High-efﬁ ciency Tube option, be sure to read this section carefully.

mc_060208_1320

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 42

INSTALLATION

Dispersion:

Interconnecting piping requirements

Table 38-1: Maximum steam carrying capacity and length of interconnecting steam hose or tubing

Steam hose

Hose I.D. Maximum capacity Maximum length

inches DN lbs/hr kg/h ft m inches DN lbs/hr kg/h ft m

1½ 40 150 68 10 3 1½ 40 150 68 20 6

2 50 250 113 10 3 2 50 220 100 30 9

1. When using steam hose, use DriSteem steam hose for best results. Field-supplied hose may have shorter life and may cause foaming in the evaporating chamber resulting in condensate discharge at the dispersion assembly. Do not use steam hose for outdoor applications.

2. Maximum recommended length for steam hose is 10' (3 m). Longer distances can cause kinking or low spots.

Tubing size Maximum capacity 3

3 5 80 5450 204 80 24

4 5 100 5750 340 100 30

3. Insulate tubing to minimize loss of capacity and efﬁ ciency.

4. Developed length of tubing equals measured length plus 50% of measured length, to account for ﬁ ttings.

Longer tubing lengths are possible at capacities lower than listed

maximums. Consult factory.

5. Requires ﬂ ange connection.

Copper or stainless steel tubing

125

150

1400 635 100 30

2300 1043 100 30

Maximum developed

length

Note: Capacities and lengths in this table are based on total maximum pressure drop in hose or tubing of 5" wc (1250 Pa).

mc_091410_1050-VLC

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 43

Steam outlet connections Dispersion:

FIGURE 39-1: STEAM HOSE CONNECTION

Hose clamp

INSTALLATION

Steam hose

Steam outlet connection (tubing)

DC-1142 mc_022510_1600

FIGURE 39-2: TUBING CONNECTION USING HOSE CUFF WITH CLAMPS

Tubing

Hose clamps

6" long (152 mm) hose cuff

Steam outlet connection (tubing)

DC-1143 mc_022510_1602

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 44

INSTALLATION

Dispersion:

FIGURE 40-1: FLANGE CONNECTION

Swing arm by installer

Steam outlet connections

Support member

Support tubing from above to prevent pressure on humidiﬁ er. Allow for thermal expansion.

Directional arm (up, down, right, and left) by installer

DC-1141 mc_022510_1603

Steam outlet connection (ﬂ ange)

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 45

INSTALLATION

Dispersion:

Drip tee installation

Install a drip tee as shown in Figure 40-1 when:

• Humidiﬁ er is mounted higher than the dispersion assembly,

• Interconnecting hose or piping must go over an obstruction, or

• Interconnecting piping runs are long.

Important: Steam hose must be supported to prevent sagging or low spots.

FIGURE 41-1: DRIP TEE INSTALLATION (PIPING OVER AN OBSTRUCTION)

90° long sweep or two 45° elbows

Obstruction

Pitch

Insulate tubing and hard pipe to reduce steam loss

To dispersion assembly

6" (150 mm) minimum

8" (200 mm) minimum

1" (25 mm) air gap

Open drain required. See ﬁ rst note below.

Notes:

• Support steam hose so there are no sags or low spots.

• Dashed lines indicate provided by installer.

Tubing or pipe drip tee, by installer. DriSteem part numbers for 304 stainless steel in-line tees:

• 1½" diameter (DN40): No. 162710

• 2" diameter (DN50): No. 162712

¾" (DN20)

Vaporstream humidiﬁ er

DC-1166

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 46

INSTALLATION

Dispersion:

DISPERSION TUBE MOUNTING

Single tube and multiple tube

• Orient dispersion tube(s) so that tubelets (steam oriﬁ ces) point up.

• See Table 42-2 for dispersion tube pitch requirements.

• When mounting the humidiﬁ er above the level of the dispersion tube(s), see drip tee installation in Figure 40-1.

CONDENSATE DRAIN PIPING

• Minimum diameter (ID) for draining from one or two dispersion tubes: ¾" (DN20)

• Minimum diameter (ID) for draining from three or more dispersion tubes: 1" (DN25)

• Condensate drain piping must be rated for 212 °F (100 °C) continuous operating temperature.

• Condensate drain line must be piped as shown in the ﬁ gures on the following pages. Provide a 6" (152 mm) drop prior to a 5" (127 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.

mc_020111_0908

Table 42-1: Single dispersion tube capacities*

Insulated

Tube size

inches DN lbs/hr kg/h lbs/hr kg/h lbs/hr kg/h lbs/hr kg/h

1½ 40 29 13.2 65 29.5 28 12.7 62 28.2

2 50 65 29.5 97 44.1 62 28.2 93 42.3

Note: Single dispersion tube available with face width between 6" (152 mm) up to 120" (3048 mm)

in 1" (25 mm) increments.

* If face width is <19" (483 mm), tube capacity may be reduced. Consult DriSteem or see

DriCalc for the correct capacity.

* Hose kits are available that include dispersion tube, 10 ft (3 m) of steam hose, and hardware

(High-Efﬁ ciency Tubes)

Without drain With drain Without drain With drain

Uninsulated

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 47

Single tube and multiple tube Dispersion:

FIGURE 43-1: SINGLE TUBE DISPERSION WITHOUT CONDENSATE DRAIN

Single dispersion tube without condensate drain

INSTALLATION

Duct

Steam hose, tubing or pipe. Insulate tubing and hard pipe to reduce steam loss. Do not insulate steam hose.

Vaporstream humidiﬁ er

Pitch*

Secure and seal duct escutcheon plate

90° long sweep or two 45° elbows

DC-1045

3/8" (M10) mounting nut

Tube pitch 2"/ft (15%)

Table 43-1: Dispersion tube escutcheon plate

dimensions

for 1½" tube for 2" tube

inches mm inches mm

Dashed lines indicate provided by installer

* Pitch steam hose, tubing or pipe toward humidiﬁ er: – 2"/ft (15%) when using steam hose – 1/8"/ft (1%) when using tubing or pipe

Dispersion tube

escutcheon plate

(diameter)

A 1.51 38 2.03 52

B 3.25 83 5.00 127

Table 43-2: Pitch of dispersion tube(s) and interconnecting piping for Single-tube or multiple-tube evaporative dispersion units*

Condensate drain

Without drain

With drain

* When piping over an obstruction, see the drip tee installation illustration on Page 41.

Type of interconnecting

piping

Steam hose

Tubing or pipe

Steam hose

Tubing or pipe

Diameter of dispersion tube and interconnect-

ing 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 humidiﬁ er

1/8"/ft (1%)

toward humidiﬁ er

2"/ft (15%)

toward humidiﬁ er

½"/ft (5%)

toward humidiﬁ er

¼"/ft (2%)

toward humidiﬁ er

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Pitch of dispersion

tube(s)

2"/ft (15%)

toward humidiﬁ er

1/8"/ft (1%)

toward

condensate

drain

Pitch of condensate

drain

No drain

¼"/ft (2%)

toward ﬂ oor drain or

toward humidiﬁ er if

humidiﬁ er is below

dispersion unit

Page 48

INSTALLATION

Single tube and multiple tube Dispersion:

FIGURE 44-1: SINGLE TUBE DISPERSION WITH CONDENSATE WASTED TO FLOOR DRAIN

Steam hose or tubing. Insulate tubing to reduce steam loss. Do not insulate steam hose.

Secure and seal escutcheon plates

Duct

Dispersion tube

Pitch

90° long sweep or two 45° elbows

Vaporstream humidiﬁ er

1" (25 mm) air gap

DC-1046a

Notes: 1 Locate air gap only in spaces with adequate temperature and air movement to absorb ﬂ ash steam, or condensing on nearby surfaces my occur.

Refer to governing codes for drain pipe size and maximum discharge water temperature. 2 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 3 Dashed lines indicate provided by installer

(see Note 2 below)

2" (51 mm) minimum

Water seal

5" (127 mm)

¼" (DN8) pipe thread

½" (DN15) O.D. condensate drain tube; pitch ¼"/ft (2%)

Condensate drain tube, by installer, minimum ¾" (DN20); must be suitable for 212 °F (100 °C) water

Open drain required. See Note 1 below.

3/8" (M10) mounting nut

Pitch tube toward drain 1/8"/ft (1%)

Table 44-1: Dispersion tube and condensate drain escutcheon plate dimensions

for 1½" tube for 2" tube

inches mm inches mm

A 1.51 38 2.03 52

B 3.25 83 5.00 127

C 0.75 19 0.75 19

D 3.25 83 3.25 83

FIGURE 44-2: DISPERSION TUBE AND CONDENSATE DRAIN ESCUTCHEON PLATES

Dispersion tube plate

A (diameter)

Condensate drain plate

C (diameter)

OM-351c

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 49

INSTALLATION

Dispersion:

FIGURE 45-1: SINGLE TUBE WITH CONDENSATE RETURNED TO HUMIDIFIER

Steam hose or tubing

90º long sweep or two 45° elbows

Vaporstream humidiﬁ er

¾" pipe thread (DN20) condensate return connection (on face plate)

Single tube and multiple tube

Secure and seal escutcheon plates

½" (13 mm) air vent

6" (152 mm)

minimum

H2 (see Table 23-1)

Pitch*

2" (51 mm)

minimum

Duct

5" (127 mm)

water seal

¼" pipe thread (DN8)

Dispersion tube

Mounting nut, 3/8" (M10)

Pitch tube toward drain 1/8"/ft (1%)

½" (DN15) O.D. condensate drain tube, pitch ¼"/ft (2%)

DC-1046b

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

FIGURE 45-2: SINGLE TUBE DISPERSION WITH CONDENSATE DRAIN

Thermal-resin tubelets (steam oriﬁ ce inserts)

OM-351b

½" O.D. (DN15) condensate drain

¼" (DN8) pipe thread end

Movable escutcheon plate. Plate can be mounted within limits of 2.5" (64 mm).

Condensate drain tube, by installer, ¾" DN20 minimum. Return line piping material must be suitable for 212 °F (100 °C) water. Note: Condensate may be returned to the humidiﬁ er or wasted to a drain. See Figure 43-1 for piping condensate to a drain.

Mounting bracket

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 50

INSTALLATION

Dispersion:

FIGURE 46-1: MULTIPLE TUBE WITH CONDENSATE WASTED TO FLOOR DRAIN

Steam hose or tubing

90° long sweep or two 45° elbows

Vaporstream humidiﬁ er

DC-1048a

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 tube and multiple tube

Multiple dispersion tubes with condensate drains

Secure and seal escutcheon plates

Pitch*

(152 mm)

Water seal

5" (127 mm)

1" (25 mm) air gap

Duct

¼" (DN8) pipe thread

Condensate drain tube provided by installer, ¾" (DN20) minimum

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.

Dispersion tube

Mounting nut, 3/8" (M10)

Pitch tube toward drain 1/8"/ft (1%)

½" (DN15) O.D. condensate drain tube, pitch ¼"/ft (2%)

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 51

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 – ¾" × 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 at left):

– L-bracket 50" (1270 mm) long or shorter has a mounting hole 4" (102

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.

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.

mc_060210_0940

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 Table 48-1). The size, quan ti ty, and location of penetrations are determined by the dimensions and conﬁ guration of the Rapid-sorb assembly you received.

mc_060210_0937

• 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.

• 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 Dri-calc Installation Guides library or contact your representative/distributor or DriSteem for installation instructions for air handler or vertical airﬂ ow applications.

mc_060210_0945-NA

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 52

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 requirements toward the ¾" pipe thread (DN20) header drain ﬁ tting.

– 2" (DN50) dispersion tubes: The bracket can be

mounted ﬂ ush to the ductwork. The 1/8"/ft (1%) pitch typically can be accomplished in the length of the hose cuffs used to connect the tubes to the header.

• See the table below and the drawings on the following pages for pitch requirements.

mc_060210_0953-NA

Table 48-1: Rapid-sorb tube capacities*

Tube diameter

inches DN lbs/hr kg/h lbs/hr kg/h

1½ 40 43 19.5 40 18.2

2 50 80 36.4 77 35

Note: * 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 for the correct calculation.

Insulated

(High-Efﬁ ciency Tubes)

Uninsulated

Table 48-2: 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

mc_060210_0936

Table 48-3: Pitch of interconnecting piping, dispersion tubes, and headers for Rapid-sorb evaporative dispersion units

Airﬂ ow

Horizontal

Vertical

mc_020111_0945

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Type of

interconnecting piping

Steam hose 1½" (DN40), 2" (DN50)

Tubing or pipe

Steam hose 1½" (DN40), 2" (DN50)

Tubing or pipe

Diameter of

interconnecting piping

1½" (DN40), 2" (DN50),

3" (DN80), 4" (DN100),

5" (DN125), 6" (DN150)

1½" (DN40), 2" (DN50),

3" (DN80), 4" (DN100),

5" (DN125), 6" (DN150)

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 toward

header

Pitch of header

1/8"/ft (1%)

toward

condensate

drain

1/8"/ft (1%)

toward

condensate

drain

Page 53

INSTALLATION

Dispersion:

FIGURE 49-1: RAPID-SORB IN A HORIZONTAL AIRFLOW WITH HEADER OUTSIDE DUCT

Position L-bracket so that ﬂ ange is upstream of dispersion tubes. This drawing shows the L-bracket positioned for airﬂ ow back to front.

Point tubelets (steam oriﬁ ces) perpendicular to airﬂ ow

90° long sweep or two 45° elbows

Steam hose, tubing, or pipe

Rapid-sorb

DC-1050

Dis per sion tube

Slip coupling or hose cuff

Pitch*

Pitch header toward drain 1/8"/ft (1%)

Vaporstream humidiﬁ er

Stainless steel support

¾" pipe thread

(DN20) condensate drain

¾" (DN20) copper

1" (25 mm) air gap

Airﬂ ow

Duct

Secure and seal escutcheon plates

Support bracket

2" (51 mm) minimum

5" (127 mm)

* Pitch steam hose, tubing, or pipe toward Rapid-sorb: – 2"/ft (15%) when using steam hose – 1/8"/ft (1%) when using tubing or pipe

HEADER OUTSIDE OF DUCT, HORIZONTAL AIRFLOW

1. Mark and cut holes in the ductwork for the dispersion tubes. Use the L-bracket as a tem plate to mark the holes on the duct floor.

2. Temporarily, loosely suspend or support the header below the final location. Vertical balance point of the dispersion tube length dictates where the header should be suspended or temporarily supported.

3. Mount the dispersion tubes to the header with the slip coupling or hose cuff (provided).

• When installing slip couplings for 1½" (DN40) dispersion tubes, take

care not to shear the O-rings.

• Set the slip coupling on the header stub or dis per sion tube so the O-ring

is resting on the face of the tubing.

• Rotate the slip coupling as you push it onto the tubing.

• The O-rings are lubricated at the factory. If additional lubrication is

necessary, DO NOT use a petroleum-based lubricant.

4. Position the flange of the L-bracket so it is upstream of the tubes when the assembly is raised and fastened into po si tion. Fasten the L-bracket to the end of the dispersion tubes with the provided bolt, lock washer, and flat washer.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 54

INSTALLATION

Dispersion:

5. Before tightening the L-bracket bolts to the dispersion tubes:

• For 1½" (DN40) dis per sion tubes: – Dispersion tube will rotate in slip coupling. Verify that dispersion tube

oriﬁ ces are directed perpendicular to airﬂ ow.

– Dispersion tube and slip coupling must be fully engaged on header

stub for O-rings to provide a seal.

• For 2" (DN50) dispersion tubes:

Before securing hose cuff in place with hose clamps on dis per sion tube

and the header stub, verify that dis per sion tube oriﬁ ces are directed perpendicular to airﬂ ow.

6. Slide the assembly up until the L-bracket aligns with the mount ing holes in the duct.

• 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.

• For 2" (DN50) dis per sion 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 header pitch, 1/8"/ft (1%) toward drain, is maintained.

Rapid-sorb

Note:

See Page 52 for steam supply and condensate drain line connection instructions.

7. Permanently secure both ends of header, and verify that header pitch, 1/8"/ft (1%) toward drain, is maintained.

8. Verify that all fasteners are secure:

• L-bracket to duct

• Dispersion tubes to L-bracket

• Hose clamps on 2" (DN50) tubes

9. Secure and seal the dispersion tube escutcheon plate and condensate drain tube escutcheon plate around the respective tubes, if applicable.

mc_060210_1015

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 55

INSTALLATION

Dispersion:

FIGURE 51-1: RAPID-SORB IN A HORIZONTAL AIRFLOW WITH HEADER INSIDE THE DUCT

Position L-bracket so that ﬂ ange is upstream of dispersion tubes. This drawing shows the L-bracket positioned for airﬂ ow back to front

Point tubelets (steam oriﬁ ces) perpendicular to airﬂ ow

90° long sweep or two 45° elbows

Steam hose or tubing

* Pitch steam hose or tubing toward Rapid-sorb: – 2"/ft (15%) when using steam hose – 1/8"/ft (1%) when using tubing

Rapid-sorb

Slip coupling or hose cuff

Dis per sion tube

Pitch*

Secure and seal escutcheon plate

Vaporstream humidiﬁ er

DC-1051

Pitch header toward drain 1/8"/ft (1%)

Stainless steel support

¾" pipe thread

(DN20) drain

¾" (DN20) copper

1" (25 mm) air gap

Airﬂ ow

Duct

Support bracket

2" (51 mm)

minimum

5" (127 mm)

HEADER INSIDE OF DUCT, HORIZONTAL AIRFLOW

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.

4. 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 floor of the air handler, assembled in the vertical position, and then raised and mounted in place.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 56

INSTALLATION

Dispersion:

5. 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.

6. Allow the dispersion tubes to rest against the bottom of the duct.

7. 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.

8. 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.

Rapid-sorb

Note:

See Page 52 for steam supply and condensate drain line connection instructions.

9. 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

10. Secure and seal the header escutcheon plate around the header.

mc_060210_1050

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 57

INSTALLATION

Dispersion:

STEAM SUPPLY CONNECTIONS TO RAPID-SORB HEADER

Connect the steam supply interconnecting piping from the humidiﬁ er to the Rapid-sorb. The steam supply piping requires a minimum of 1/8"/ft (1%) pitch toward the header.

If multiple humidiﬁ ers are supplying one Rapid-sorb, a multiple steam supply connector is needed. Typically, the multiple steam supply connector attaches to the Rapid-sorb header supply end with hose cuff and clamps:

1. Route the necessary number of steam supplies from the humidifier tanks to the steam supply connector.

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.

CONDENSATE DRAIN CONNECTIONS TO RAPID-SORB HEADER

Piping must be minimum ¾" I.D. (DN20) and rated for 212 °F (100 °C) minimum continuous operating temperature.

Rapid-sorb

The condensate drain line must be piped as shown in Figures 48-1 and 50-1. Provide a 6" (152 mm) drop prior to a 5" (127 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.

ULTRA-SORB

For Ultra-sorb steam dispersion panel instructions, see the installation, operation, and maintenance manual shipped with the Ultra-sorb.

mc_060210_1300-NA

Ultra-sorb

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 58

INSTALLATION

Dispersion:

CHOOSING A LOCATION FOR SDU-I AND SDU-E

SDU-I and SDU-E

• When used with a Vaporstream, the SDU can be located a minimum of 18" (457 mm) above a Vaporstream humidiﬁ er, or remotely from the humidiﬁ er (see interconnecting piping requirements in Table 38-1 for maximum distance).

• Allow 6" (152 mm) clearance on each side of SDU.

MOUNTING SDU-I AND SDU-E

SDU-I and SDU-E units can be mounted on a wall remotely from the Vaporstream humidiﬁ er.

• Installation must comply with governing codes.

• See interconnecting piping requirements in Table 38-1, and the drip tee installation instructions on Page 41.

• Provide at least 6" (150 mm) clearance on each side of the SDU.

• Field wiring is required to connect the SDU fan and airﬂ ow proving switch terminals to the hu mid i ﬁ er electrical panel terminals. Refer to the external connections diagram in the package shipped with the unit.

• For wall mounting, use the mount ing tem plate on the box for correct place ment. Two 3/8" lag bolts (M10 × 50 mm coach screws) are provided with each fan unit.

SDU-I: Instant, internal absorption

SDU-I (Space Distribution Unit Internal Absorption) disperses humidity with no visible vapor trail or wetness, making it ideal for use in ﬁ nished spaces. The SDU-I fan mixes room air and steam to ensure complete absorption before discharge as humidiﬁ ed air.

Important: For visible vapor to be

absorbed completely within the SDU-I unit before being discharged as hu mid i ﬁ ed air, room air must be 45% RH or less. Trying to maintain greater than 45% RH will cause visible vapor and potential for moisture collection on the discharge grille.

SDU-E: Higher capacity

SDU-E (Space Distribution Unit External Absorption) is designed for higher capacity dispersion. SDU-E requires an installed condensate drain line and water seal, provided by installer.

mc_052510_1610

• When mounting on a stud wall (studs 16" [406 mm] on center), locate studs and position lag bolts (coach screws) in place so that each of the two lag bolts (coach screws) centers on a stud. Mark hole locations and predrill ¼" (6 mm) diameter pilot holes for a 3/8" × 2" lag bolt (M10 × 50 mm coach screw).

• For hollow block or poured concrete wall mounting, position template in place and mark the holes. Drill ap pro pri ate pilot hole for two 3/8" (M10) toggle bolts or two 3/8" (M10) machine bolt lead anchors (expansion bolts). Secure SDU frame in place.

• To provide power to the SDU, run a neutral line with 208V/240V/singlephase 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 DriSteem a trans form er in stalled in the control cabinet.

• The fan and airﬂ ow proving switch ter mi nals are labeled in the hu mid i ﬁ er and in the SDU. Min i mum wire size for ﬁ eld wiring is 18-gauge (1.5 mm2) stranded wire.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 59

INSTALLATION

Dispersion:

FIGURE 55-1: SDU-I MECHANICAL DETAIL

SDU-I and SDU-E

Front view Side view

24.2"

(615 mm)

10.9"

(276 mm)

FIGURE 55-3: SDU-E MECHANICAL DETAIL

1½" (DN40) steam inlet

Humidiﬁ ed air discharge grille

18.6"

(472 mm)

Front view Side view

24.2"

(615 mm)

Steam outlet

¾" (DN20) pipe thread drain nipple. See Note below.

DC-1076

mc_052510_1700

Air intake grille

16.1"

(409 mm)

2.25" (57 mm)

16.1"

(409 mm)

18.6"

(472 mm)

FIGURE 55-2: SDU-I FIELD WIRING

SDU-I cabinet with shroud removed

VLC-OM-032

Control board in Vaporstream control cabinet

FIGURE 55-4: SDU-E FIELD WIRING

SDU-E cabinet with shroud removed

3.2" (82 mm)

10.9"

(276 mm)

Note: SDU-E requires a condensate drain line and water seal, provided by installer. See Figure 55-1.

mc_052510_1701

1½" (DN40) or 2" (DN50) steam inlet

DC-1078

Steam inlet

2.25" (57 mm)

Table 55-1: SDU specifications

SDU

model

SDU-I 30 13.6 68 31 3.20 1/5 760 0.36 58

SDU-E 102 46.3 61 28 2.07 1/8 545 0.26 64

* Measurement taken 6.5' (2 m) in front of SDU cabinet.

mc_042710_1440

Maximum capacity Shipping weight Amps at

lbs/hr kg/h lbs kg

120V

(50/60 Hz)

Horse

power

cfm m3/s dB*

VLC-OM-024

Control board in Vaporstream control cabinet

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 60

INSTALLATION

Dispersion:

MOUNTING SDU-E

SDU-E

• The SDU-E unit requires an installed condensate drain line and water seal (provided by installer). See ﬁ gure below and instructions at right.

• Spread dimensions greater than 3' (1 m) may require additional clearance (see Table 56-1).

FIGURE 56-1: SDU-E DRAIN LINE PIPING

Install SDU-E frame plumb and level

OM-1245 mc_042710_1445

Union

Elbow

Drain

1" (25 mm) air gap

4" (102 mm)

¾" pipe thread (DN20) dispersion box drain and P-trap piping, rated for 212 °F (100 °C)

Spill funnel. Plumb to ﬂ oor drain.

Open ﬂ oor drain. Refer to governing codes for drain pipe size and maximum temperature requirements.

Dispersion box

WARNING

Hazards of standing water in SDU-E

If standing water is allowed to accumulate in the dispersion box, it can:

• Cause bacteria and mold growth, which can cause illness.

• Affect SDU-E fan unit performance.

• Cause 212 °F (100 °C) water to discharge from the SDU-E fan unit, which can cause severe personal injury.

mc_052610_1725

SDU-E CONDENSATE DRAIN CONNECTION

1. Piping must be minimum ¾" I.D. (DN20) and rated for 212 °F (100 °C) minimum continuous operating temperature.

2. Drain line must be piped as shown in figure at left. Provide a 6" (152 mm) drop prior to a 4" (102 mm) water seal to ensure condensate drainage from the SDU-E, and to keep steam from blowing out of the drain line.

3. 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 degree 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.

4. All drain lines must be installed and sized according to governing codes.

5. The drain line should have a union installed directly on the dispersion box ¾" nipple to accommodate future removal of the SDU-E shroud.

6. A drain line and water seal must be connected to the SDU-E fan unit dispersion box ¾" nipple.

If the condensate is not drained from the dispersion box, standing water will accumulate. See Warning below.

7. The dispersion box is constructed with a pitch toward the drain; however, the SDU-E frame must be installed plumb and level for the dispersion box to drain properly.

mc_052610_1720

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 61

INSTALLATION

Dispersion:

SDU-E RISE, SPREAD, AND THROW

As steam is discharged from the SDU-E, it quickly cools and turns to a visible

SDU-E

FIGURE 57-1: SDU-E RISE, SPREAD, AND THROW

fog that is lighter than air. As this fog is carried away from the SDU-E by the airstream, it tends to rise toward the ceiling. If this fog contacts solid surfaces (columns, beams, ceiling, pipes, etc.) before it disappears, it could collect and drip as water. The greater the space relative humidity, the more the fog will rise, throw and spread.

Table 57-1 lists the minimum rise, throw and spread non-wetting distances

Steam outlet

Rise

Spread

Throw

Air

intake

grille

DC-1027

for SDU-E at 40%, 50% and 60% RH in the space. Surfaces cooler than ambient temperature, or objects located within this minimum dimension,

mc_042710_1435

can cause condensation and dripping. To avoid steam impingement on surrounding areas, observe the minimum non-wetting distances in Table 57-1.

The SDU-E contains a blower (120 V, single-phase, 60 Hz) and an airﬂ ow proving switch (ﬁ eld-wired to the humidiﬁ er electrical panel). A wiring diagram of the SDU-E is included with the unit.

On a call for humidity, the humidiﬁ er begins producing steam, and the start relay energizes the SDU-E blower. When the call for humidity is satisﬁ ed, the Vapor-logic controller keeps the blower running to disperse residual moisture using a time delay.

mc_042710_1255

Table 57-1: SDU-E minimum nonwetting distances

Maximum steam

2 6 2.7 1.0 0.3 1.0 0.3 5.0 1.5 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.3

4 12 5.4 1.0 0.3 1.0 0.3 5.0 1.5 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.3

6 18 8.2 1.0 0.3 1.0 0.3 5.0 1.5 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.3

8 24 10.9 1.0 0.3 1.0 0.3 5.5 1.7 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.3

10 30 13.6 1.5 0.5 1.5 0.5 6.0 1.8 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 8.0 2.5

12 36 16.3 1.5 0.5 1.5 0.5 6.0 1.8 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 8.0 2.5

14 42 19.1 2.0 0.6 2.0 0.6 7.0 2.1 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 9.0 2.7

16 48 21.8 2.0 0.6 2.0 0.6 7.0 2.1 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 9.0 2.7

21 63 28.6 2.0 0.6 2.0 0.6 7.5 2.3 2.5 0.8 2.5 0.8 10.0 3.0 3.0 1.0 3.0 1.0 12.0 3.7

25 75 34.0 2.0 0.6 2.0 0.6 8.0 2.5 2.5 0.8 2.5 0.8 10.5 3.2 3.5 1.1 3.5 1.1 12.5 3.8

30 90 40.9 2.0 0.6 2.0 0.6 8.0 2.5 2.5 0.8 2.5 0.8 10.5 3.2 3.5 1.1 3.5 1.1 12.5 3.8

34 102 46.3 2.0 0.6 2.0 0.6 8.0 2.5 2.5 0.8 2.5 0.8 10.5 3.2 3.5 1.1 3.5 1.1 12.5 3.8

Notes:

• Surfaces or objects directly in the path of vapor discharge may cause condensation and dripping.

• To avoid steam impingement on surrounding areas, observe the minimum nonwetting dimensions in this table.

• Rise: The minimum nonwetting height above the steam outlet of the SDU-E.

• Spread: The minimum nonwetting width from the steam outlet of the SDU-E.

• Throw: The minimum nonwetting horizontal distance from the steam outlet of the SDU-E.

mc_042710_1300

capacity

lbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m

40% RH @ 70 °F (21 °C) 50% RH @ 70 °F (21 °C) 60% RH @ 70 °F (21 °C)

Rise Spread Throw Rise Spread Throw Rise Spread Throw

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 62

INSTALLATION

Dispersion:

Table 58-1 lists the Area-type steam minimum rise, spread, and throw nonwetting dimensions. Surfaces or objects located within this minimum dimension can cause con den sa tion and drip ping.

The greater the space relative hu mid i ty, the high er and farther the discharged steam will carry and rise in the space until becoming absorbed.

The Area-type fan and brackets are shipped sep a rate ly and ﬁ eld-installed on the humidiﬁ er. After mount ing the fan, terminate the wires as speciﬁ ed on the wiring diagram.

To provide power to the Area-type fan, 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 DriSteem a trans form er in stalled in the control cabinet.

Area-type fan

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 63

INSTALLATION

Dispersion:

Area-type fan

Table 59-1: Area-type (evaporative steam) minimum distances for rise, spread, and throw*

60 °F (16 °C)

Maximum steam

capacity

Rise Spread Throw Rise Spread Throw Rise Spread Throw

lbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m

50 20 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.5 0.8 6.0 1.8

75 34 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 4.0 1.2 8.0 2.4

100 45 4.0 1.2 4.0 1.2 10.0 3.1 4.0 1.2 4.0 1.2 10.0 3.1 4.0 1.2 5.0 1.5 10.0 3.1

150 68 6.0 1.8 5.0 1.5 12.0 3.7 6.0 1.8 5.0 1.5 12.0 3.7 6.0 1.8 5.0 1.5 12.0 3.7

200 90 7.0 2.1 7.0 2.1 13.0 4.0 8.0 2.4 7.0 2.1 14.0 4.3 8.0 2.4 7.0 2.1 14.0 4.3

225 102 7.0 2.1 7.0 2.1 13.0 4.0 8.0 2.4 7.0 2.1 14.0 4.3 8.0 2.4 7.0 2.1 14.0 4.3

250 110 8.0 2.4 8.0 2.4 15.0 4.6 9.0 2.7 9.0 2.7 16.0 4.9 9.0 2.7 9.0 2.7 16.0 4.9

285 130 9.0 2.7 9.0 2.7 17.0 5.2 10.0 3.1 10.0 3.1 18.0 5.5 10.0 3.1 10.0 3.1 18.0 5.5

Maximum steam

capacity

Rise Spread Throw Rise Spread Throw Rise Spread Throw

lbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m

50 20 1.0 0.3 1.5 0.5 4.0 1.2 1.0 0.3 2.0 0.6 4.0 1.2 1.0 0.3 2.0 0.6 4.0 1.2

75 34 2.0 0.6 2.0 0.6 6.0 1.8 2.0 0.6 2.5 0.8 6.0 1.8 2.0 0.6 2.5 0.8 6.0 1.8

100 45 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4

150 68 4.0 1.2 4.0 1.2 10.0 3.1 4.0 1.2 4.0 1.2 11.0 3.4 4.0 1.2 4.0 1.2 11.0 3.4

200 90 5.0 1.5 5.0 1.5 11.0 3.4 5.0 1.5 5.0 1.5 12.0 3.7 5.0 1.5 5.0 1.5 12.0 3.7

225 102 5.0 1.5 5.0 1.5 11.0 3.4 5.0 1.5 5.0 1.5 12.0 3.7 5.0 1.5 5.0 1.5 12.0 3.7

250 110 6.0 1.8 6.0 1.8 12.0 3.7 6.0 1.8 6.0 1.8 13.0 4.0 6.0 1.8 6.0 1.8 14.0 4.3

285 130 7.0 2.1 7.0 2.1 14.0 4.3 7.0 2.1 7.0 2.1 15.0 4.6 7.0 2.1 7.0 2.1 16.0 4.9

* With fan on high speed

mc_030210_0940

30% RH 40% RH 50% RH

70 °F (21 °C)

30% RH 40% RH 50% RH

Table 59-2: Area-type electric fan specifications*

Motor 120 V, 50/60 Hz

Blade diameter 18" (457 mm)

Speeds 3

Control Rotary switch

cfm (high speed) 3190

/s (high speed) 1.51

rpm (high speed) 1500

Amps (high speed) 1.52

FIGURE 59-1: AREA-TYPE RISE, SPREAD, THROW

Spread

Throw

VLC-OM-020

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Spread: Minimum non-wetting

width from the steam

Rise

Rise: Minimum non-wetting

Throw: Minimum non-wetting

chute

height above the steam chute

horizontal distance from the steam chute

Page 64

OPERATION

Start-up procedure

After the system is installed and connected properly:

1. Verify that the Vaporstream humidifier, controls, piping, electrical connections, steam supply, and dis per sion unit(s) are installed according to the following:

• Installation instructions in this manual

• Vapor-logic In stal la tion and Op er a tion Man u al

– Installation section – Pre-installation checklist

• Ladder style wiring diagram (inside control cabinet)

• External connections wiring diagram (inside control cabinet)

• Heater connections wiring diagrams (inside heater terminal cover)

• All governing codes

2. Verify that electrical connections in the control cabinet and at the humidifier are secure before applying power.

3. Make sure all electrical covers are in place and secure. See Warning at right.

4. Verify that the humidifier is mounted level and securely supported before filling with water. See operating weights in Table 8-1.

5. Verify that the humidifier is level front to back and side to side after it is full of water.

6. Read the “Operation” section of the Vapor-logic Installation and Operation Manual. Note: During start-up, do not leave the humidifier unattended.

7. Perform all applicable “Start-up checklist” items. See Page 60.

8. Monitor humidifier operation through multiple fill cycles. The humidifier operating status appears on the keypad/display.

CAUTION

Damage from dry startup

In the event the humidiﬁ er tank does not contain water and the heaters are energized, turn main power off. Operation of the heaters without water will cause damage to the humidiﬁ er. Before turning main power on, verify that all wiring has been completed per the wiring instructions in this manual and the unit wiring diagrams.

mc_052410_1325

WARNING

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 that all electrical covers are in place and secure before turning on electrical power. These include the following:

• Heater terminal cover on tank

• Control cabinet door

9. On tap/softened water units, water skims from the humidifier after every fill cycle. Adjust the amount of skim by increasing or de creas ing the skim time (see the Vapor-logic Installation and Operation Manual).

10. At start-up, DriSteem recommends initially running the humidifier with the factory default setting for skim time. See “Maintenance,” beginning on Page 61.

mc_060210_1400-VLC

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

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 setup and menu information

• Control input signals and functions

• Drain, ﬂ ush, and skim features

• Safety features

• Alarm screens and fault messages

The manual was shipped with your humidiﬁ er and is available at our Web site: www.dristeem.com

mc_052410_1340

Page 65

Start-up checklist

If an item in the Start-up checklist below does not apply to your system, skip to the next item and continue the process.

☐ Read this manual and all other information that was provided with your

humidiﬁ er.

☐ Verify that all ﬁ eld wiring is done according to the instructions in this

manual and in the humidiﬁ er wiring diagram.

☐ Conﬁ rm that the input signal is consistent with the Vapor-logic controller's

expected input signal. Input signals are listed in the Vapor-logic Setup menu. See “Installation Step 2: Setup” in the Vapor-logic Installation and Operation Manual.

☐ Conﬁ rm that proper grounding and an approved earth ground are

provided.

☐ Conﬁ rm that the keypad/display is mounted with its modular cable routed

away from high-voltage circuits and connected to the Display connector on the Vapor-logic board.

OPERATION

☐ Turn on the water supply, and conﬁ rm that the drain valve is closed.

☐ Turn on power to the humidiﬁ er, and conﬁ rm the Main menu is displayed

on the keypad/display. The display may take several seconds to appear as the controller powers up.

☐ Conﬁ rm in the Main Menu that the mode is “Auto” and that tank status is

“Filling.”

☐ When “Filling” appears in main menu, conﬁ rm that the tank is ﬁ lling with

water.

☐ In the Status screen, conﬁ rm that the Duct Airﬂ ow Switch is closed.

☐ In the Status screen, conﬁ rm that the high limit humidistat input is closed or

the high limit transmitter is connected.

☐ Make sure the tank has ﬁ lled with water. See the “Damage from dry

startup” Caution on Page 60.

☐ With sufﬁ cient water in the tank, the airﬂ ow switch closed, the high limit

closed, the safety interlock closed, and the humidiﬁ er getting a call for humidity, verify that the heater outputs are activated.

☐ Check the amp draw of the heaters. Refer to the humidiﬁ er wiring diagram

for the proper rating.

☐ If you experience difﬁ culties, have the keypad/display information

available along with the serial number and humidiﬁ er Model, and call DriSteem Technical Support at 800-328-4447.

mc_060210_1355-VLC

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 66

MAINTENANCE

Tap/softened water:

Water quality and skim duration

The best way to determine how often your humidiﬁ er needs maintenance is to remove the tank cover and inspect it for mineral deposits after three months of duty. Hours of operation and duty cycle will determine your maintenance schedule, as will water quality.

Water quality

Maintenance requirements vary with water quality, because tap and softened water carry a variety of minerals and other materials in a mix that varies from location to location. Very hard (high mineral content) water requires more frequent cleaning and drain/ﬂ ush cycles than water with low mineral content.

Softened water signiﬁ cantly reduces mineral accumulation inside the humidiﬁ er.

Note: Solids, like silica, are not removed in the softening process.

Skim duration

Skim duration determines the quantity of water skimmed with each ﬁ ll cycle and is ﬁ eld adjustable using the Vapor-logic keypad/display.

Skimming reduces the need for frequent humidiﬁ er cleaning. Each time the tank reﬁ lls, it ﬁ lls to a level just above the lip of the skim/overﬂ ow ﬁ tting. A portion of the ﬁ ll water ﬂ ows out of the skim/overﬂ ow ﬁ tting to the drain, which ﬂ ushes minerals left by the previous evaporating cycle and skims away surface residue.

WARNING

Electric shock hazard

Contact with energized circuits can cause severe personal injury or death as a result of electric shock. To prevent shock, disconnect electrical power before performing service or maintenance procedures on an part of the humidiﬁ cation system.

When performing maintenance on the humidiﬁ er:

• Always switch the keypad control mode to Standby.

• Place all power disconnects in OFF position and lock in OFF position.

• Close the ﬁ eld-installed manual supply water shut-off valve.

mc_031110_0444

WARNING

Both humidiﬁ er cleaning and heated water ﬂ owing to the drain are operational costs. DriSteem recommends that the user observe and adjust the skim duration to achieve a balance between reducing mineral buildup and conserving heated water.

mc_060210_1430

Hot surface and hot water hazard

Do not touch the tank or drain piping until the unit has had sufﬁ cient time to cool, or serious injury can occur.

Opening the drain valve when the tank is hot can discharge water with a temperature up to 212 °F (100 °C) into the plumbing system. This can cause damage to the plumbing system if the humidiﬁ er is not properly connected to a water tempering device such as a DriSteem Drane-kooler tempering device.

mc_060110_1640

™

water

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 67

MAINTENANCE

Tap/softened water:

Cool-down procedure

Before performing any maintenance, allow the tank to cool down. Fresh makeup water is used to speed up cooling. Do not close the manual water supply before cooling down the humidiﬁ er; otherwise the tank could stay hot for several hours.

• Insulated and uninsulated tanks will have hot surfaces.

• Verify that there is no call for humidity and that the aquastat set point (adjusted using the keypad/display Setup screens) is less than room temperature (default setting is 40 °F [4 °C]) so that the heaters do not energize while cooling down the tank.

• Models with a standard drain valve:

– Manually open the drain valve by moving the valve lever located on

the back of the drain valve to the manual open position. The ﬁ ll valve eventually opens.

– Let the ﬁ ll water run until the tank is cooled, then shut off the ﬁ eld-

installed manual supply water shut-off valve.

– Let the tank drain, then manually close the drain valve.

• Models with optional drain valves:

– For drain valves without the manual open lever, use the keypad to

perform the cool down process. – Go to the control modes screen and select Manual Drain. – Allow approximately half the water to drain out of the tank. – In the Control Modes screen select Auto; the ﬁ ll valve opens and the

humidiﬁ er cools down. – When the ﬁ ll valve closes, select Manual Drain in the Control Modes

screen and let the tank drain dry. The humidiﬁ er should be cool enough

to work on. – For more information about using the keypad, see the Vapor-logic

Installation and Operation Manual.

mc_060210_1715

CAUTION

Hot discharge water

Discharge water can be as hot as 212 °F (100 °C) and can damage the drain plumbing.

To prevent such damage from humidiﬁ ers without water tempering, allow the tank to cool before draining.

Excessive supply water pressure

Supply water pressure greater than 80 psi (550 kPa) can cause the humidiﬁ er to overﬂ ow.

mc_030910_1440

Troubleshooting

The Vapor-logic Installation and Operation Manual, which was shipped with your

humidiﬁ er, is a comprehensive operation manual. Refer to it for troubleshooting information.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 68

MAINTENANCE

Tap/softened water:

INSPECTION AND MAINTENANCE

Inspection and maintenance

1. Annually (also recommended when main te nance is performed)

• All safety devices in the control circuit should be cycled on and off to verify they are functioning. These include:

– High limit switch – Airﬂ ow proving switch – Low water level probe. Pull out probe plug; ﬁ ll valve should energize.

• Inspect tank and gaskets for leaks.

• Measure current draw of heaters and verify amp values per stage by comparing to the wiring diagram located inside the control cabinet. This identiﬁ es any burned out heaters. Only qualiﬁ ed electrical personnel should perform this task.

2. Seasonally (or as required, depending on water quality)

• Cleaning the tank – Remove cleanout plate; slide the cleanout tray out, and dispose of

any loose scale that has collected in the tray.

– Remove any additional scale that has accumulated on the bottom

of the humidiﬁ er tank. This should be done before the scale buildup reaches the bottom of the heaters.

– Inspect the area inside the tank in front of the drain valve ﬁ tting and

thoroughly clean all scale and mineral buildup from that area.

• Cleaning the probes – The probe assembly is located under the heater terminal cover.

Access the probe assembly through the probe cover located on the end of the heater terminal cover.

– Disconnect the probe plug and cable assembly and unscrew the

probe rod assembly from the humidiﬁ er probe housing using the probe tool (see Figure 64-1).

– Inspect the probe housing and clean, ensuring that all the housing

passageways for water ﬂ ow are clear. Remove the housing from the holding bracket by removing the humidiﬁ er cover and sliding the housing horizontally toward the open end of the bracket.

– When sliding probe housing into bracket from which it hangs, orient

housing so neither water ﬂ ow slot directly faces tank wall at back

end of bracket. – The scale should ﬂ ake off easily from the probe assembly rods. – The bottom 3/8" (10 mm) of each rod is the sensing portion; clean

these areas with a wire brush, abrasive pad, or steel wool. – Inspect the composite plastic probe rod assembly for any signs

of cracking, roughness, or deterioration. If found, replace probe

assembly. – Apply silicon sealant to the probe gasket, and reassemble the probe

assembly using the probe tool (see Figure 64-1).

FIGURE 64-1: PROBE TOOL

Probe tool

OM-7395X

Remove and install probe assembly with supplied probe tool. Attach a 3/8" square drive to the probe tool.

When installing, torque probe assembly to 120 in-lbs (10 ft-lbs; 13.6 N-m). Probe tools can be ordered from your DriSteem representative (Part no. 185101).

mc_060310_0735

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 69

MAINTENANCE

Tap/softened water:

Inspection and maintenance

• Cleaning the skim/overﬂ ow port – Water should drain from the skimmer drain pipe after each ﬁ ll cycle.

This should be veriﬁ ed visually by a weekly inspection.

– Loosen deposits in and around the skimmer/overﬂ ow port with a

long tool such as a screwdriver.

– If ﬂ ow through the water seal/P-trap is diminished due to mineral

accumulation: – Remove the water seal piping from the hu mid i ﬁ er and ﬂ ush out. – Replace the water seal with new piping if the minerals have

hardened in the water seal.

– Install a union at the base of the water seal to ease removal if

water quality causes the water seal to become clogged often with scale.

• When the maintenance requirements are complete: – Slide the cleanout tray back into the tank. – Hook the tab on the backside of the cleanout plate over the edge of

the cleanout tray and slide the cleanout plate over the tank studs. – Torque the cleanout plate nuts to 25 to 35 in-lb (2.8 to 4.0 N-m). – Verify that the probe rod holder is secure and that the probe plug

and cable assembly are plugged into the probe rod holder. – Replace and secure all covers and doors. – Verify that the drain valve assembly is in the closed position. – Turn on the water supply. – Turn on the electrical power. – Do not leave humidiﬁ er unattended. Allow the hu mid i ﬁ er to cycle

through multiple ﬁ ll cycles and verify that the humidiﬁ er cover,

cleanout plate, and probe holder gasket are not leaking.

Humidifier De-scaling Solution

Scale buildup on humidiﬁ er heaters acts as an insulator, reducing humidiﬁ er performance while increasing energy costs. To keep humidiﬁ ers operating as efﬁ ciently as possible, remove scale with DriSteem's Humidiﬁ er Descaling Solution, available for purchase from your DriSteem representative or distributor.

The De-scaling Solution cleans without risk of corroding humidiﬁ er tanks or welds. The De-scaling Solution also cleans surfaces unreachable by hand scraping.

DriSteem's Humidiﬁ er De-scaling Solution is the only approved cleaner/de-scaler for use with DriSteem humidiﬁ ers. Use of other cleaners/descalers may void your DriSteem warranty.

mc_021908_1410

3. Off-season maintenance

• Perform complete inspection and cleaning of the following: – Heaters – Probe rods – Skimmer port and water seal – Humidiﬁ er tank

• After cleaning, the humidiﬁ er should remain empty until humidiﬁ cation is required.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 70

MAINTENANCE

RO/DI water option:

Cool-down procedure

Before performing any maintenance, allow the tank to cool down.

Note: Fresh make-up water is used to speed up cooling. Do not close the

manual water supply before cooling down the humidiﬁ er; otherwise the tank could stay hot for several hours.

• Insulated and uninsulated tanks will have hot sur fac es.

• Verify that there is no call for humidity and that the aquastat set point (adjusted using the keypad/display Set Up screens) is less than room temperature (default setting is 40 °F [4 °C]) so that the heaters do not energize while cooling down the tank.

• For models with a standard drain valve:

– Manually open the drain valve. – The ﬂ oat valve opens. – Let the ﬁ ll water run until the tank is cooled; then shut off the ﬁ eld-

installed manual supply water shut-off valve.

– Let the tank drain; then manually close the drain valve.

• For models with end-of-season drain option:

WARNING

Electric shock hazard

When performing maintenance on the humidiﬁ er:

• Always switch the keypad control mode to Standby.

• Place all power disconnects in OFF position and lock in OFF position.

• Close the ﬁ eld-installed manual supply water shut-off valve.

mc_031110_0444

– Use the keypad/display to perform the cool down process. – Select Manual Drain in the control modes screen. – Allow approximately half the water to drain out of the tank. – Select Auto in the control modes screen; the ﬁ ll valve opens and the

humidiﬁ er cools down.

– When the ﬁ ll valve closes, select Manual Drain in the control modes

screen and allow the tank to drain completely dry. The humidiﬁ er should be cool enough to work on.

– For more information about using the keypad/display, see the

Vapor-logic Installation and Operation Manual.

WARNING

Hot surface and hot water hazard

Do not touch the tank or drain piping until the unit has had sufﬁ cient time to cool, or serious injury can occur.

mc_060110_1640

™

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 71

MAINTENANCE

RO/DI water option:

INSPECTION AND MAINTENANCE

Inspection and maintenance

1. Annually (also recommended when main te nance is performed)

• All safety devices in the control circuit should be cycled on and off to verify they are functioning. These include:

– High limit switch – Airﬂ ow proving switch – Low water cutoff switch

• Inspect tank and gaskets for leaks.

• Verify that the ﬂ oat valve is closing off. If the ﬂ oat valve will not shut off, there may be particulate on the valve seat, or the stopper may be worn and need replacing.

• As long as mineral-free water is used in the RO/DI-water Vaporstream, no cleaning or ﬂ ushing of the humidiﬁ er should be necessary.

2. Off-season maintenance

• Perform a complete inspection of the following: – Heaters – Float valve – Low water cutoff switch – Humidiﬁ er tank and gaskets

• After inspection, the humidiﬁ er should remain empty until humidiﬁ cation is required.

Note:

When replacing the cleanout plate, tighten nuts to a torque measurement of 40 in-lb (4.5 N-m).

Recommendations for RO/DI water humidifiers

Verify regularly that water processing equipment is operating correctly. The presence of chlorides in improperly processed DI water can cause pitting and failure of the tank and its components. Your DriSteem warranty does not cover damage caused by chloride corrosion.

Vaporstream humidiﬁ ers with RO/DI water option:

• Do not require regular cleaning, although regular inspections are advised.

• Do not require skimming or draining and ﬂ ushing to remove precipitated minerals; however, all RO/DI humidiﬁ ers should be drained at the end of a humidiﬁ cation season either by manually opening the drain valve or by programming the humidiﬁ er to automatically drain at end-of-season (electric ﬁ ll and drain valve required).

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 72

MAINTENANCE

Outdoor Enclosure

Access to the humidiﬁ er side cleanout plate is through the Outdoor Enclosure electrical service door.

WARNING

• Clean vent screens annually.

• Check for proper operation of strip heaters and ventilation fans annually.

• Refer to instructions for complete humidiﬁ er maintenance, beginning on Page 62.

Table 68-1: Outdoor Enclosure troubleshooting guide

Symptom Possible cause Recommended action

No power Check for power to Outdoor Enclosure.

Fans not operating

Heaters not operating

Doors not sealing

mc_020111_1225

Loose connections Reconnect wiring or tighten.

Broken fan Replace fan.

No power Check for power to Outdoor Enclosure.

Loose connections Reconnect wiring or tighten.

Broken heater Replace heater.

Loose handles Adjust handle.

Bad gasket Replace gasket.

Electric shock hazard

When performing maintenance on the humidiﬁ er:

• Always switch the keypad control mode to Standby.

• Place all power disconnects in OFF position and lock in OFF position.

• Close the ﬁ eld-installed manual supply water shut-off valve.

mc_031110_0444

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 73

Humidiﬁ er

FIGURE 69-1: VAPORSTREAM TANK REPLACEMENT PARTS

REPLACEMENT PARTS

Note: Components may be in a different location or have a different orientation than shown in drawing.

VLC-OM-033

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 74

REPLACEMENT PARTS

Humidiﬁ er

Table 70-1: Tank replacement parts list

No. Description Models used Part no.

1 Tank All *

2 Cover All *

3 Cover, heater louvered All 167745- *

4 Pan-head mach. screw, ¼ - 20 x 1" All 700300-013

5 Heater All 409600- *

6 Gasket, cover All 160691- *

7 Cleanout plate All 165472

8 Gasket, cleanout plate All 308225

9 Switch, door interlock All 408475

10 Thermal cut-out All 409560-001

11 Drain valve assembly All *

12 Fill valve assembly Vaporstream with tap/softened water *

13 Float valve assembly Vaporstream with RO/DI water *

14 Temperature sensor All 405760-002

15 DIN rail mounted terminals All *

16 Probe plug assembly Vaporstream with tap/softened water 406050-101

17 Probe assembly Vaporstream with tap/softened water 406303-111

18 Low water tube Vaporstream with RO/DI water 167790

19 Low water cut-out switch Vaporstream with RO/DI water 408420-002

20 Gasket, probe All 309750-004

21 Probe housing All 308500

22 Probe cover All 167746

23 Buss bar All *

24 Cleanout tray 6, 9, and 12 heater Vaporstream with tap/softened water 167770- *

25 Plug, ¾" NPT All 250192-075

26 Washer, ¼" standard lock All 700300-005

* Specify humidiﬁ er model and serial number when ordering.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 75

Control cabinet

FIGURE 71-1: NORTH AMERICAN CONTROL CABINET REPLACEMENT PARTS

REPLACEMENT PARTS

VLC-OM-035a

Note: Components may be in a different location or have a different orientation than shown in drawing.

FIGURE 71-2: EUROPEAN CONTROL CABINET REPLACEMENT PARTS

Note: Components may be in a different location or have a different orientation than shown in drawing.

OM-7659b

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 76

REPLACEMENT PARTS

Control cabinet

Table 72-1: North American control cabinet replacement parts

No. Description Models that use this part Part no.

1 Wire channel, 1" x 1" All 408999-001

2 Wire channel, cover All 408999-002

3 Contactor Standard 407010- *

4 Fuse holder

5 Fuse

6 Power block

7 Transformer, 24 V All *

8 Transformer, 120 V

9 Relay socket SDU or Area-type 407900-011

10 Relay, 24V DPDT SDU or Area-type 407900-016

11 Auxiliary switch All multi-stage 407001-023

Door interlock, electric

switch

13 Terminal end bracket All 408252-006

Board, Vapor-logic main

microprocessor

15 Circuit breaker All 406775- *

16 20 amp DIN rail terminal All 408252-001

17 Terminal ground All 408252-010

18 SSR SSR control *

19 Gasket, SSR SSR control *

20 Cover, SSR SSR control 165545

Board, Vapor-logic

keypad/display

23 Wire data cable 27" Mounted keypad/display 408490-014

Cable assembly,

Vapor-logic keypad/ display

* Specify humidiﬁ er model and serial number when ordering.

Model and voltage dependent

Optional SDU or Areatype fan dispersion

Door interlock option 408470

All 408495-002

All 408490- *

Table 72-2: European control cabinet replacement parts

No. Description Part no.

1 Main controller, Vapor-logic 408496-006

2 Power block *

3 Cover, power block plastic *

4 Transformer, 24 V *

5 Wire channel, 1" x 1" 408999-001

6 Wire channel cover 408999-002

7 Contactor 407010-*

8 Circuit breaker, 3 pole 406776-*

9 Door interlock, electric switch 408470

10 Terminal, 20 amp DIN rail mount 408252-001

11 Relay socket, 3 PDT 407900-021

12 Relay, 24V (3PDT) 407900-017

13 SSR *

14 Cover, SSR 165545

15 Gasket, SSR *

16 Circuit breaker, single pole *

17 Transformer, 120 V *

18 Relay socket, DPDT 407900-019

19 Relay, 24V DPDT 407900-016

20 Terminal, ground 408252-010

21 Display, Vapor-logic 408495-002

22 Case, display rear Vapor-logic 408495-003

23 SSR EMI supression ﬁ lter 408674

* Specify humidiﬁ er model and serial number when ordering.

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 77

SDU-I

FIGURE 73-1: SDU-I REPLACEMENT PARTS

REPLACEMENT PARTS

OM-1504

mc_062810_1111

Table 73-1: SDU-I replacement parts

No. Description Qty. Part number

1 Shroud 1 330001-002

2 Blower, SDU external assembly 1 *

3 Switch, airﬂ ow 1 406190

4 Screw, 8-32 × ½" Phillips, black 6 700170-007

5 Nut retainer, 8-32 6 409593-001

6 Tubelet, 0.375" × 0.375" molded 44 310280-006

* This is an assembly of multiple parts.

mc_062810_1113

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 78

REPLACEMENT PARTS

SDU-E

FIGURE 74-1: SDU-E REPLACEMENT PARTS

OM-1503

mc_062810_1110

Table 74-1: SDU-E replacement parts

No. Description Qty. Part number

1 Shroud 1 330002-001

2 Blower, SDU external assembly 1 *

3 Switch, airﬂ ow 1 406190

4 Screw, 8-32 × ½" Phillips, black 4 700170-007

5 Nut retainer, 8-32 4 409593-001

Dispersion chamber for SDU with 1½" outlet 1 160445-003

Dispersion chamber for SDU with 2" outlet 1 160445-004

* This is an assembly of multiple parts.

mc_062810_1112

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 79

Outdoor Enclosure

FIGURE 75-1: OUTDOOR ENCLOSURE REPLACEMENT PARTS

REPLACEMENT PARTS

OM-953

Table 75-1: Outdoor Enclosure replacement parts

Number in drawing Description Part number

1 500W strip heater 405800-052

2 1100W strip heater 405800-053

3 Cooling fan 405800-068

4 Gasket, door or roof 308005-010*

5 Stat, high limit 405800-065

6 Stat, low limit 405800-066

7 Stat, heater 405800-066

8 Stat, fan 405800-067

* Specify quantity in feet

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Page 80

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 Vaporstream humidiﬁ er, which features cleanable, stainless steel construction. 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

DriSteem U.S. Headquarters is an ISO 9001:2008 certiﬁ ed company

U.S. Headquarters: 14949 Technology Drive Eden Prairie, MN 55344 800-328-4447 or 952-949-2415 952-229-3200 (fax)

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, DriCalc, Rapid-sorb, Ultra-sorb, Vapor-logic, and Vaporstream are registered trademarks of Research Products Corporation and are ﬁ led for trademark registration in Canada and the European community.

Two-year Limited Warranty

DriSteem 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. 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 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.

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.

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.

Area-type and Drane-kooler are trademarks of Research Products Corporation.

Product and corporate names used in this document may be trademarks or registered trademarks. They are used for explanation only without intent to infringe.

Form No. VAPORSTREAM-IOM-EN-1117 Part No. 890000-801 Rev L