Installation, Operation, and Maintenance Manual

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Installation, Operation, and Maintenance Manual | Manualzz
XT
Ele ctrode S te a m H um i di fi e r
Installation, Operation,
and Maintenance Manual
War nings and cautions
8B S O J O H T B O E D B V U J P O T
WARNING
Indicates a hazardous situation that could result in death or
serious injury if instructions are not followed.
CAUTION
Indicates a hazardous situation that could result in damage to
or destruction of property if instructions are not followed.
mc_051508_1145
WARNING
Attention installer
Read this manual before installing, and leave this manual with product owner. This product must be installed by
qualified HVAC and electrical contractors and in compliance with local, state, federal, and governing codes. Improper
installation can cause property damage, severe personal injury, or death as a result of electric shock, burns, or fire.
DRI-STEEM® 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.
mc_011909_1215
Hot surfaces and hot water
This steam humidification system has extremely hot surfaces. Water in steam cylinders, steam pipes, 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.
Disconnect electrical power
Disconnect electrical power before installing supply wiring or performing service or maintenance procedures on any
part of the humidification system. Failure to disconnect electrical power could result in fire, 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 fire. Do not open cabinet doors until electrical power is disconnected.
Follow the shutdown procedure in this manual before performing service or maintenance procedures on any part of
the system.
1BHF JJ t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
8B S O J O H T B O E D B V U J P O T
WARNING
Electrical shock hazard
If the humidifier starts up responding to a call for humidity during maintenance, severe bodily injury or death from
electrical shock could occur. To prevent such start-up, follow the procedure below before performing service or
maintenance procedures on this humidifier:
1. Use Vapor-logic®4 keypad/display to drain cylinder.
2. Use Vapor-logic®4 keypad/display to change control mode to Standby.
3. Shut off all electrical power to humidifier using field-installed fused disconnect, and lock all power disconnect
switches in OFF position.
4. Close field-installed manual water supply shut-off valve.
mc_050808_1540
CAUTION
Follow steam piping recommendations
Controlling condensate flow and collection in an XT humidifier system is critical to maximum performance. Failure to follow
the steam piping recommendations in this manual can cause system pressure fluctuations and increase cylinder pressure,
steam velocity, and condensate noise.
Hot discharge water
Discharge water can be as hot as 212 °F (100 °C) and can damage the drain plumbing. To prevent such damage, do not shut
off supply water to the cylinder before it is drained.
Excessive supply water pressure
Supply water pressure greater than 80 psi (550 kPa) can cause the humidifier to overflow.
mc_123010_1520-XT
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF JJJ
5B C M F P G D P O U F O U T
Warnings and cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Overview
Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications, capacities and weights . . . . . . . . . . . . . . . . . . . . .
Fusing and line currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
4
5
6
Installation
Selecting a location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mounting:
Keyhole locations and dimensions . . . . . . . . . . . . . . . . . . . . . . 8
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Opening and closing cabinet doors. . . . . . . . . . . . . . . . . . . . . 10
Removing cabinet doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Removing steam cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Wall mounting humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Fill cup extension kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Steam cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Condensate return guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Piping:
Supply water and drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
XT models 5 through 100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
XT models 150 and 200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
XT steam blowers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Humidifier wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Sensor placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Dispersion:
Selecting the dispersion assembly location . . . . . . . . . . . . . . 23
Condensate control and collection . . . . . . . . . . . . . . . . . . 24
Interconnecting piping requirements . . . . . . . . . . . . . . . . . . . 24
Connecting to humidifier with steam hose . . . . . . . . . . . 25
Steam outlet connections, XT models 5 through 75 . . . . . . 26
Steam outlet connections with hose,
XT models 100 through 200 . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Single dispersion tube
Dispersion tube with or without condensate drain . . . . 28
Dispersion tube without condensate drain,
XT models 5, 10, and 20 only . . . . . . . . . . . . . . . . . . . . . . 28
Dispersion tube with condensate drain,
XT models 30 and 50 only . . . . . . . . . . . . . . . . . . . . . . . . . 29
Drip tee installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connecting to humidifier with tubing or pipe . . . . . . . . . . . 31
1BHF JW t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
5B C M F P G D P O U F O U T
Rapid-sorb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rapid-sorb with XT models 75 through 200 . . . . . . . . . . . . .
Rapid-sorb with XT models 150 and 200. . . . . . . . . . . . . . . .
Installing with header outside of duct for horizontal
airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing with header inside of duct for horizontal
airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam supply connections to Rapid-sorb header . . . . . .
Condensate drain connections to Rapid-sorb header . .
Ultra-sorb Model LV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
XT steam blowers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting XTSB on top of humidifier . . . . . . . . . . . . . . .
Wiring top-mounted XTSB . . . . . . . . . . . . . . . . . . . . . . . .
Wall mounting XTSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring wall-mounted XTSB . . . . . . . . . . . . . . . . . . . . . . .
Installing base plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piping condensate to XT humidifier fill cup cap . . . . . .
Piping condensate to drain. . . . . . . . . . . . . . . . . . . . . . . . .
Supply water considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation
Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Staging multiple XT humidifiers . . . . . . . . . . . . . . . . . . . . . . . . .
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start-up checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Shutdown procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scheduled maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam cylinder service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cool-down procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing steam cylinder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drain valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRI-STEEM Technical Support . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement parts:
XT humidifier models 5 through 100 . . . . . . . . . . . . . . . . . . .
XT humidifier models 150 and 200 . . . . . . . . . . . . . . . . . . . .
Steam blowers XTSB-20 and XTSB-50 . . . . . . . . . . . . . . . . . .
32
34
35
36
36
38
38
38
39
41
41
42
43
43
43
43
44
Controller
®
The Vapor-logic 4 Installation and Operation
Manual ships with XT humidifiers. It is
a comprehensive manual. Refer to it for
information about the keypad/display and Web
interface, and for troubleshooting information.
Download DRI-STEEM literature
DRI-STEEM product manuals can be
downloaded, printed, and ordered from our
web site: www.dristeem.com
46
46
47
48
49
50
50
50
50
50
52
53
53
54
56
58
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back cover
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Overview
1SPEVDU PWFSWJFX
Figure 2-1:
Vapor-logic controller interfaces
Figure 2-2:
XT humidifier installation overview
Keypad/display
Room RH
Mode
Duct
Set point
Output
Cylinder
status
Softkeys
for direct
menu
access
System
alarms
System
messages
Navigation
buttons
for item
selection
Rapid-sorb
dispersion panel
Steam hose, tubing,
or pipe to duct dispersion
or XT steam blower (XTSB)
Fill cup extension kit
required for some
models and applications
(see Page 11)
Electrical
knockouts
Vapor-logic4
keypad/display
Web interface
Wall mounting
keyholes
(behind cabinet)
Water fill line connection
(under cabinet)
Condensate to drain
Replaceable steam cylinder
OM-7586
Notes:
Supply water
See Pages 14 and 15 for detailed installation
drawings.
XT electrode steam humidifiers use hard or softened supply water.
Water conductivity must be in the range of 125 to 1250 μS/cm
(roughly equivalent to 3.4 to 36.3 grains per gallon). See “Supply
water considerations” on Page 44.
Damage caused by chloride corrosion is not
covered by your DRI-STEEM warranty.
Demineralized, deionized, and reverse-osmosis water cannot be
used, because they are not conductive enough for electrode steam
humidifiers.
Heated supply water cannot be used, because unheated supply water
is required for drain water tempering.
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Overview
1SPEVDU PWFSWJFX
Dispersion options
In addition to Rapid-sorb dispersion shown in Figure 2-2, the duct
dispersion options below and the open space dispersion options
in Figure 3-3 are available for XT humidifiers. See “Dispersion”
beginning on Page 23.
Figure 3-3:
XT steam blowers (XTSB)
Mounted on top of humidifier
Figure 3-1:
Ultra-sorb Model LV dispersion
OM-7596
Mounted up to 10' (3 m) away from humidifier
OM-7587X
mc_030111_1250
Figure 3-2:
Single dispersion tube
Note: Models XT-30 and larger require condensate drain. See Page 29.
OM-7597
mc_030111_1251
OM-7585
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Overview
4 Q F D J G J D B U J P O T D B Q B D J U J F T B O E
X F J H I U T
Table 4-1:
XT humidifier specifications
Current draw (amps)
Max. steam
capacity
XT
model
kW
5
1.7
5
10
3.4
20
lbs/hr kg/h
Single-phase
Shipping
weight
Three-phase
Max.
operating
weight
120V 208V 230V 240V 277V 480V 600V 208V 240V 400V 480V 600V
lbs
kg
lbs
kg
2.3
14.2
8.2
7.4
7.1
—
—
—
—
—
—
—
—
47.2
21.4
46.3
21.0
10
4.5
—
16.3
14.8
14.2
12.3
7.1
5.7
9.4
8.2
4.9
4.1
3.3
47.2
21.4
46.3
21.0
6.7
20
9.1
—
32.2
29.1
27.9
24.2
14.0
11.2
18.6
16.1
9.7
8.1
6.4
48.1
21.8
54.0
24.5
30
10.1
30
13.6
—
—
—
—
—
—
—
28.0
24.3
14.6
12.1
9.7
62.2
28.2
87.5
39.7
50
16.8
50
22.7
—
—
—
—
—
—
—
46.6
40.4
24.2
20.2
16.2
62.2
28.2
87.5
39.7
75
25.1
75
34.0
—
—
—
—
—
—
—
—
—
36.2
30.2
24.2
75.2
34.1
124.3
56.4
100
33.5
100
45.4
—
—
—
—
—
—
—
—
—
48.4
40.3
32.2
75.2
34.1
124.3
56.4
150
50.3
150
68.1
—
—
—
—
—
—
—
—
—
72.6
60.5
48.4
129.2
58.6
242.9
110.2
200
67.0
200
90.8
—
—
—
—
—
—
—
—
—
96.7
80.6
64.5
129.2
58.6
242.9
110.2
Note: For circuit protection requirements, see Table 5-1.
mc_090110_1020
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Overview
' V T J O H B O E M J O F D V S S F O U T
Table 5-1:
Recommended fusing and line currents for XT humidifiers
Model
XT-5
Phase
1
1
XT-10
3
1
XT-20
3
XT-30
XT-50
XT-75
XT-100
XT-150
XT-200
3
3
3
3
3
3
L1
Line amps
L2
L3
120
14.2
14.2
208
8.2
8.2
230
7.4
240
kW
Recommended
fusing amps
—
1.7
25
—
1.7
15
7.4
—
1.7
13
7.1
7.1
—
1.7
15
208
16.3
16.3
—
3.4
25
230
14.8
14.8
—
3.4
25
240
14.2
14.2
—
3.4
25
277
12.3
12.3
—
3.4
20
480
7.1
7.1
—
3.4
15
600
5.7
5.7
—
3.4
10
208
9.4
9.4
9.4
3.4
15
240
8.2
8.2
8.2
3.4
15
400
4.9
4.9
4.9
3.4
13
480
4.1
4.1
4.1
3.4
10
600
3.3
3.3
3.3
3.4
10
208
32.2
32.2
—
6.7
50
230
29.1
29.1
—
6.7
50
240
27.9
27.9
—
6.7
45
277
24.2
24.2
—
6.7
40
480
14.0
14.0
—
6.7
25
600
11.2
11.2
—
6.7
20
208
18.6
18.6
18.6
6.7
30
240
16.1
16.1
16.1
6.7
25
400
9.7
9.7
9.7
6.7
16
480
8.1
8.1
8.1
6.7
15
600
6.4
6.4
6.4
6.7
10
208
28.0
28.0
28.0
10.1
45
240
24.3
24.3
24.3
10.1
40
400
14.6
14.6
14.6
10.1
25
480
12.1
12.1
12.1
10.1
20
600
9.7
9.7
9.7
10.1
15
208
46.6
46.6
46.6
16.8
70
240
40.4
40.4
40.4
16.8
70
400
24.2
24.2
24.2
16.8
40
480
20.2
20.2
20.2
16.8
35
600
16.2
16.2
16.2
16.8
25
400
36.2
36.2
36.2
25.1
63
480
30.2
30.2
30.2
25.1
50
600
24.2
24.2
24.2
25.1
40
400
48.4
48.4
48.4
33.5
80
480
40.3
40.3
40.3
33.5
70
600
32.2
32.2
32.2
33.5
50
400
72.6
72.6
72.6
50.3
125
480
60.5
60.5
60.5
50.3
100
600
48.4
48.4
48.4
50.3
80
400
96.7
96.7
96.7
67.0
150
480
80.6
80.6
80.6
67.0
125
600
64.5
64.5
64.5
67.0
100
Volts
mc_110110_1457
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Overview
% J N F O T J P O T
Figure 6-1:
XT humidifier dimensional drawings
XT models 5 through 100
Top
A
E
2.00 (51)
4.1
(102.9)
2.00
(51)
XT models 150 and 200
Top
2.05
(52.1)
A
32.2 (818)
3.05
(77.5)
26.8 (681)
E
F
1.85 (47)
D
C
1.85 (47)
F
D
C
Dispersion outlet
Fill cup extension kit*
10
(254)
Front
Front
10 (254)
B
Bottom
B
Bottom
Water fill line
connection
Drain outlet
Electrical knockouts
F
1.38 (34.9)
Dispersion outlets
Fill cup extension kits*
Water fill line
connection
Drain outlets
F
6.1 (155)
3.05 (77.5)
2.36
(60)
1.38 (35)
2.38
(60.3)
E
2.05 (52.1)
E
4.05 (102.9)
17.4 (442)
22.09
(561)
26.38 (670)
OM-7581
OM-7593
32.2 (818)
Notes:
* Fill cup extension kit is required and ships with XT models 75 through 200 (ships loose). It is also required for XT models 30 and 50
for the conditions described in Table 24-1, and all XT humidifiers using Rapid-sorb or Ultra-sorb dispersion.
t -BCFMFEEJNFOTJPOTJODIFTNJMMJNFUFST
t 4FFNPVOUJOHEJNFOTJPOTBOEFMFDUSJDBMLOPDLPVUTJOFigure 8-1.
mc_090710_0946
Table 6-1:
Dimensions by model number
Dimension
Description
5, 10, and 20
inches
mm
XT models
30 and 50
75 and 100
inches
mm
inches
mm
150 and 200
inches
mm
A
Cabinet width
16.1
409
19.2
488
21.5
546
39.8
1011
B
Cabinet height
23.9
607
25.8
655
28.0
711
28.0
711
C
Cabinet depth including doors
12.1
307
14.1
358
16.9
429
17.0
432
D
Cabinet depth not including doors
10
254
11.8
300
14.4
366
14.4
366
E
Cabinet left edge to steam/drain outlet centers
4.6
117
6.2
157
7.2
183
7.2
183
F
Cabinet back edge to steam/drain outlet centers
6.1
155
6.2
157
7.2
183
7.2
183
mc_091010_0920
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation 4 F M F D U J O H B M P D B U J P O
Humidifier
Important:
When selecting a location for the humidifier, consider the
following:
Install humidifier only in locations that meet the
following temperature and relative humidity (RH)
requirements:
t Proximity to the duct
Install the humidifier near the air duct system where
the dispersion assembly will be located. The maximum
recommended length for steam hose connecting a single
humidifier to a dispersion assembly is 10' (3 m). The maximum
recommended developed length for tubing or pipe connecting a
single humidifier to a dispersion assembly is 20' (6 m).
Maximum ambient temperature:
104 °F (40 °C)
Minimum ambient temperature:
41 °F (5 °C)
Maximum ambient humidity:
80% RH (non-condensing)
For more information about installing dispersion assemblies,
see “Dispersion” beginning on Page 23.
t &MFWBUJPOPGUIFJOTUBMMFEEJTQFSTJPOBTTFNCMZ
The recommended installation location for the dispersion
assembly is at an elevation higher than the humidifier. However,
if the dispersion assembly must be installed at an elevation
lower than the humidifier, install a drip tee and drain. See “Drip
tee installation” on Page 30.
Before installing a dispersion assembly or interconnecting
piping, review all pitch requirements in the “Dispersion” section
of this manual.
t 3FRVJSFEDMFBSBODFT (see Figure 9-1)
t &MFDUSJDBMDPOOFDUJPOT
Electrical power supply connections are at the lower or upper
right rear corner of the unit. See “Humidifier wiring” on Pages
19 and 20.
t 4VQQMZXBUFSBOEESBJOQJQJOHDPOOFDUJPOT
Water supply piping and drain connections are at the bottom of
the cabinet. See “Piping” on Pages 14 and 15.
t &YUFSJPSXBMMJOTVMBUJPO
Install the humidifier on an exterior wall only if the wall is
properly insulated.
Dispersion control devices
See Figure 22-1 for recommended installation locations for the
dispersion assembly and associated control devices.
mc_062810_0928-NA
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
. P V O U J O H ,FZIPMFMPDBUJPOTBOEEJNFOTJPOT
Figure 8-1:
XT humidifier mounting keyhole locations
XT models 5 through 100
XT models 150 and 200
D
A
A
G
A
C
D
C
G
E
E
P
B
ØN
B
F
H
ØN
I
F
I
J
ØO
K
J
K
M
OM-7594
OM-7582
mc_091010_0923
Table 8-1:
XT humidifier mounting keyhole dimensions
XT models
5, 10, and 20
Dimension
30 and 50
75 and 100
150 and 200
inches
mm
inches
mm
inches
mm
inches
mm
A
5.0
127
8.2
208
9.6
244
8.0
203
B
16.5
419
18.1
460
20.2
513
19.3
490
C
3.6
91
3.6
91
4.4
112
5.0
127
D
—
—
—
—
6.4
163
2.5
64
E
1.0
25
1.3
33
1.3
33
2.7
69
F
6.4
163
6.4
163
6.4
163
6.2
157
G
—
—
—
—
0.8
20
16.0
406
H
1.9
48
1.9
48
1.9
48
—
—
I
1.6
41
1.6
41
1.6
41
1.7
43
J
2.1
53
2.1
53
2.1
53
13.1
333
K
4.1
104
4.1
104
4.1
104
38.1
968
-
7.9
201
9.5
241
10.6
269
—
—
M
14.4
366
17.4
442
18.7
475
—
—
N
1.5
38
1.5
38
1.5
38
1.0
25
O
1.0
25
1.0
25
1.0
25
—
—
P
7.1
180
7.1
180
7.2
183
—
—
mc_091010_0925
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
. P V O U J O H $MFBSBODFT
Figure 9-1:
XT humidifier recommended minimum clearances
16” (400 mm)
3”
(76 mm)
15” (380 mm)
3” (76 mm) between units
36” (914 mm)
front clearance
OM-7583
mc_091010_0922
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
.PVOUJOH
Opening and closing cabinet doors
To open the cabinet doors, use a slotted
screwdriver to rotate the quarter-turn
fastener counterclockwise so the slot is
vertical.
To close the doors, close the right then
the left door, and push the quarter-turn
fastener while turning clockwise so the slot
is horizontal.
Unpack the humidifier from the shipping carton, and remove the
cabinet doors and steam cylinder.
Removing cabinet doors
XT humidifier and XTSB doors have lift-off hinges for easy removal
of open doors. The doors are captivated when closed but should be
removed when open. An upward bump could damage the door if it
jumps the hinges and falls.
Removing steam cylinder
Make sure the cylinder is empty and cooled before removing it.
1. Disconnect electrode and high water sensor connectors from
steam cylinder.
2. Place hands palms-down below cylinder on both sides of drain
outlet.
3. Press up against bottom of cylinder with backs of hands while
pressing down against cabinet floor with fingers.
4. Raise cylinder until drain outlet clears drain valve body, and
remove cylinder from cabinet.
Wall mounting humidifier
WARNING
Mounting hazard
Mount humidifier per the instructions
in this manual and to a structurally
stable surface. Improper mounting of
the humidifier can cause it to fall or tip,
resulting in severe personal injury or
death.
mc_060110_1540
Follow the instructions below for your model and wall type, and
mount the humidifier level and plumb. See Figures 14-1 and
15-1.
t 8PPETUVETNN
PODFOUFS95NPEFMTUISPVHI
.BSLIPMFMPDBUJPOTBUDFOUFSTPGTUVETBOEQSFESJMMžNN
diameter pilot holes. Secure humidifier to wall with lag bolts
(provided).
t .FUBMTUVETNN
PODFOUFS95NPEFMTUISPVHI
Mark hole locations at centers of studs. Using a drill bit just large
FOPVHIUPQVTIBNN
CPMUUISPVHIESJMMUISPVHITUVET
and wall, and through a backing plate on other side of wall. Push
bolts through wall, studs, and backing plate. Secure humidifier to
wall with bolts, and secure backing plate with washers and nuts.
t 95NPEFMTUISPVHIBOE95NPEFMTUISPVHIJG
PODFOUFSNN
TUVETBSFOPUBWBJMBCMF
Mount spanner boards on wall, spanning at least two studs.
Position one board at top of cabinet (for the lag bolts), and the
other board at bottom of cabinet. Secure humidifier to spanner
boards with lag bolts.
t )PMMPXCMPDLPSQPVSFEDPODSFUFXBMMBOZ95NPEFM
.BSLIPMFMPDBUJPOTBOEESJMMBQQSPQSJBUFQJMPUIPMFTGPSUXP
NN
UPHHMFCPMUTPSUXPNN
NBDIJOFCPMUMFBE
anchors. Secure humidifier in place with bolts and anchors.
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
'JMMDVQFYUFOTJPOLJU
A fill cup extension kit (Figure 11-1) is required for any of the
following:
Figure 11-1:
Fill cup extension kit
t 95IVNJEJGJFSNPEFMTUISPVHIGJMMDVQFYUFOTJPOLJU
ships loose with these models)
Fill cup
(see inset below)
t "MM95IVNJEJGJFSTVTJOH6MUSBTPSCPS3BQJETPSCEJTQFSTJPO
t 95NPEFMTBOEGPSDPOEJUJPOTEFTDSJCFEJO5BCMF
mc_110110_1455
Overflow elbow
Removing existing fill cup: XT models 5 through 50
If installing a fill cup extension kit for XT models 5 through 50, first
remove the existing fill cup as follows:
1. Remove steam cylinder from XT cabinet (if not already out).
See “Removing steam cylinder” on Page 10.
2. Expand spring clamps and slide them up cylinder fill hose and
supply water hose, and disconnect hoses from fill connection
and fill valve adapter.
3. Disconnect overflow hose from overflow elbow.
4. Fill cup is press fit into top of XT cabinet. Rock fill cup back
and forth while pushing up until it comes out, then remove fill
cup and hoses.
Installing fill cup extension kit: all XT models
Cylinder fill hose (B)
Overflow hose (C)
Supply water hose (A)
Fill valve adapter
OM-7588
Drain cup plate
1. Remove steam cylinder(s) from XT cabinet (if not already out).
See “Removing steam cylinder” on Page 10.
2. Route fill cup extension kit hoses into cabinet through fill cup
hole, and fasten extension bracket as shown with two screws
provided.
Fill connection
Fill cup
3. Cut supply water hose (small-diameter hose) (A) to length so it
can attach to fill valve adapter without kinking.
4. Expand spring clamp and slide it onto supply water hose (A)
far enough so it will not interfere, then push hose onto fill valve
adapter. Expand and slide spring clamp into place.
5. Cut cylinder fill hose (bottom, center hose) (B) to length so it
can attach to fill connection without kinking.
6. Expand spring clamp and slide it onto cylinder fill hose (B)
far enough so it will not interfere, then push hose onto fill
connection. Expand and slide spring clamp into place.
Supply water (A)
Cylinder fill (B)
Overflow (C)
OM-7629
mc_102810_1430
7. Cut overflow hose (C) to length so it can attach to overflow
elbow without kinking.
8. Push overflow hose onto overflow elbow. No spring clamp is
required on this connection.
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
4UFBNDZMJOEFS
Installing steam cylinder
Figure 12-1:
Steam cylinder installation
1. Make sure strainer is pressed into steam cylinder drain outlet
and strainer flange is flush with bottom of cylinder outlet. See
Figure 12-1.
High water
sensor pin
2. Use water to lubricate drain outlet on bottom of cylinder and
o-ring in drain valve body. See Figure 12-2.
3. With Warning label on cylinder facing you, lower cylinder drain
outlet into drain valve body, and rotate cylinder so side tabs line
up with cylinder guides inside cabinet. Push down on cylinder
until drain outlet is fully seated in drain valve body.
4. Connect high water sensor (yellow) wire to single pin
surrounded by plastic shoulder on cylinder.
5. Connect electrode plugs to pins on cylinder. Make sure all plugs
fit snugly and are fully engaged on pins.
Strainer
OM-7632
Note: If cylinder plugs becomes loose, obtain replacement plugs
GSPN%3*45&&.4FFi3FQMBDFNFOUQBSUTPO1BHFT
and 57 for part numbers.
I m p o r t a n t : Cylinders with six electrodes have color-coded
dots on the cylinder and color bands on the electrode plugs.
When connecting the plugs, match the band colors on the plugs
with the dot colors on the cylinder. Refer to the wiring diagram
shipped with the humidifier if necessary.
Figure 12-2:
Steam cylinder installation
Condensate return guidelines
To prevent overfilling the steam cylinder, follow the guidelines
below when returning condensate to the cylinder:
t 8IFODPOEFOTBUFDBOCFSFUVSOFEUPUIFTUFBNDZMJOEFS
– Single tube dispersion
– Less than 20 lbs/hr (9.1 kg/h) of steam production
– 20' (6 m) or less of steam hose, tubing, or pipe between
humidifier and dispersion
Cylinder
guide
t 8IFODPOEFOTBUFTIPVMECFXBTUFEUPUIFESBJO
– Ultra-sorb or Rapid-sorb dispersion
Drain valve
body
– Single tube dispersion with condensate drain BOE:
- 20 lbs/hr (9.1 kg/h) or of more steam production, or
- More than 20' (6 m) of steam hose, tubing, or pipe between
humidifier and dispersion
OM-7623X
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
1JQJOH
4VQQMZXBUFSBOEESBJO
Supply water piping
Piping drawings:
Use only copper for supply water piping; do not use rubber or
plastic. The standard supply water connection before the fill valve is
B'*1TUSBJOFS
See the piping drawings on Pages 14 and 15.
Note:5IFTVQQMZXBUFSDPOOFDUJPOTJ[FJT‫ڀ‬#41<%/>JO&VSPQF
In cases where water hammer may be a possibility, consider
installing a shock arrestor. Water pressure must be 25 to 80 psi
(175 to 550 kPa).
I m p o r t a n t : Thoroughly flush the
supply water piping to remove pipe residue
and stagnant water before connecting piping
to the humidifier. Pipe residue and stagnant
water in the water supply piping can cause
foaming, preventing the humidifier from
reaching the required steam capacity.
Drain piping
%SBJOQJQJOHNVTUCFDPEFBQQSPWFE£%/
*%NBUFSJBMSBUFE
GPS¡'‫¡ڀ‬$
NJOJNVN
The XT drain cup has an integral grounding plate and requires
BGJFMEJOTUBMMFENN
BJSHBQUPBESBJOGVOOFMUPQSFWFOU
conduction of electricity in the drain line.
The XT humidifier tempers drain water by opening the fill valve
whenever the drain valve is energized, which automatically cools
drain water before it enters the drain. Drain water tempering is
JOUFOEFEUPLFFQXBUFSFOUFSJOHUIFESBJOMJOFOPIPUUFSUIBO‫'¡ڀ‬
‫¡ڀ‬$
)PXFWFSNBOVBMMZFOFSHJ[JOHUIFESBJOWBMWFXIFOUIF
supply water is shut off can allow 212 °F (100 °C) water to enter the
drain line.
WARNING
Hot drain pipes
Drain piping surface may be hot. Touching
or contact with hot pipe may cause severe
personal injury.
Figure 13-1:
Drain piping detail
Observe following precautions when selecting and installing drain
piping to ensure personal safety and material integrity:
t 8IFOVTJOHDPQQFSPSPUIFSNFUBMMJDESBJOQJQJOHHSPVOEUIF
drain piping to the earth ground lug in the XT humidifier.
t $IMPSJOBUFEQPMZWJOZMDIMPSJEF$17$
QJQJOHJTBOPONFUBMMJD
BMUFSOBUJWFGPSESBJOQJQJOH*UJTSBUFEVQUP‫¡ڀ'¡ڀ‬$
GPS
intermittent-use, low-pressure applications.
5IFDPOOFDUJPOTJ[FGPSUIFTUFBNDZMJOEFSESBJOJT%/
IPTF
Do not reduce this connection size.
If drainage by gravity is not possible, use a reservoir pump rated for
212 °F (100 °C) water.
1" (25 mm) air gap
Hose clamp*
Black rubber hose*
Open drain
A drain hose is provided to function as the flexible connection from
the drain cup to the field-installed open drain. See Figure 13-1.
Pitch 1/8”/ft (1%) towards drain
¾" (DN20) I.D.
To drain
* Hose clamp and black rubber hose ship with each humidifier;
they can also be ordered from DRI-STEEM. See the
replacement parts section of this manual for part numbers.
mc_102810_1415
OM-7589
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
1 J Q J O H 9 5 N P E F M T U I S P V H I Figure 14-1:
XT humidifier field piping overview, models 5 through 100
Steam hose, tubing, or pipe. DRI-STEEM recommends tubing
or pipe for runs longer than 10’ (3 m). See Page 24 for
maximum piping lengths. Tubing or pipe must be grounded.
Fill valve with 1/4” FIP strainer
(3/8" BSP [DN10] in Europe)
Install plumb
1” (25 mm) air gap required to isolate unit drain
piping from sanitary drain piping-PDBUFBJS
gap only in spaces with adequate temperature
and air movement to absorb flash steam, or
condensing on nearby surfaces could occur.
Hose and clamp
%)
t (1
”/f rain
8
/
h 1 rd d
Pitc towa
Floor drain
Metallic water supply line
3/4” (DN20) drain piping. If piping run
is over 10’ (3 m), increase pipe to 1¼”
(DN32).
Open drain required directly below humidifier drain to prevent
downstream drain line blockage from causing water to back up
into cylinder. Refer to governing codes for drain pipe size and
maximum discharge water temperature.
Plumb spill funnel to floor drain.
Shock arrester (by installer)
recommended to reduce water hammer
3/8” (DN10) copper water supply line; water pressure must be 25 to 80 psi
(175 to 550 kPa).
Inlet strainer, by installer
Supply valve, by installer
Notes:
tXT models 75 and 100 are shipped with a fill cup extension.
t%BTIFEMJOFTJOEJDBUFQSPWJEFECZJOTUBMMFS
mc_090210_0845
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
OM-7584
Installation
1 J Q J O H 9 5 N P E F M T B O E Figure 15-1:
XT humidifier field piping overview, models 150 and 200
Steam hose, tubing, or pipe. DRI-STEEM recommends tubing
or pipe for runs longer than 10’ (3 m). See Table 24-2 for
maximum piping lengths. Tubing or pipe must be grounded.
Install
plumb
Fill valve with 1/4”
FIP strainer
(3/8" BSP [DN10]
in Europe)
Open drains required directly below humidifier
drains to prevent downstream drain line blockage
from causing water to back up into cylinder. Refer
to governing codes for drain pipe size and maximum
discharge water temperature.
Metallic water
supply line
)
(1%
”/ft rain
8
/
h 1 rd d
Pitc towa
1” (25 mm) air gap required to isolate unit drain
piping from sanitary drain piping-PDBUFBJSHBQ
only in spaces with adequate temperature and air
movement to absorb flash steam, or condensing on
nearby surfaces could occur.
1¼” (DN32) drain piping after second drain
connection
Floor drain
3/4” (DN20) drain piping up to second drain connection
Hose and clamp
Shock arrester
(by installer)
recommended
to reduce water
hammer
3/8” (DN10) copper water supply line; water pressure must be 25 to 80 psi (175 to 550 kPa).
Inlet strainer, by installer
Supply valve, by installer
Note: Dashed lines indicate provided by installer.
mc_090210_0847
OM-7595X
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
1 J Q J O H 95TUFBNCMPXFST
o
Figure 16-1:
Piping from XT humidifier steam cylinders to XT steam blowers (XTSB)
XTSB mounted remotely
Maximum recommended distance between
humidifier and XTSB is 10’ (3 m).
Plastic tie
Hose clamp (provided)
Steam hose (purchased separately from DRI-STEEM)
Condensate hose
(purchased separately
from DRI-STEEM)
Hose clamp (provided)
7” (178 mm)
water seal
XTSB mounted directly on top of
XT humidifier
Plastic tie
OM-7602
To open drain or humidifier fill cup
Water seal is required, whether condensate is piped to open
drain or returned to humidifier fill cup.
Hose clamp (provided)
Steam hose (provided)
Hose clamp (provided)
OM-7603
mc_091010_0939
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
1 J Q J O H 95TUFBNCMPXFST
Figure 17-1:
Piping from XT humidifier steam cylinders to XTSBs with Y connectors
* Water seal is required, whether condensate is piped
to open drain or returned to humidifier fill cup.
XTSB-50
Plastic tie
Pitch 2”/ft (15%) minimum
1½” (DN40) steam hose (provided)
Hose clamp (provided)
Y connector (provided)
Hose clamp
Hose clamp (provided)
Condensate hose (provided)
7” (178 mm)
water seal
Plastic tie
OM-7604
To open drain or
humidifier fill cup*
XT-75
To open drain or
humidifier fill cup*
Maximum recommended distance between
humidifier and XTSB is 10” (3 m).
XTSB-50
Plastic tie
Pitch 2”/ft (15%)
minimum
1½” DN40 steam hose
(provided)
Hose clamp
(provided)
Y connector (provided)
Hose clamp
Hose clamp (provided)
Condensate hose
(provided)
7” (178 mm)
water seal
Plastic tie
To open drain or
humidifier fill cup*
mc_091010_0940
XT-150
To open drain or
humidifier fill cup*
OM-7605
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
1 J Q J O H 95TUFBNCMPXFST
Figure 18-1:
Piping from XT humidifier steam cylinders with multiple outlets to XTSBs
* Water seal is required, whether condensate is piped
to open drain or returned to humidifier fill cup.
XTSB-50
Plastic tie
Pitch 2”/ft (15%) minimum
Hose clamp (provided)
1½” (DN40) steam hose (provided)
Hose clamp (provided)
Condensate hose (provided)
7” (178 mm)
water seal
Plastic tie
Maximum recommended distance between
humidifier and XTSB is 3 m.
XT-100
To open drain or
humidifier fill cup*
OM-7606
To open drain or
humidifier fill cup*
XTSB-50
Pitch 2”/ft (15%)
minimum
Plastic tie
1½” (DN40) steam
hose (provided)
Hose clamp (provided)
Hose clamp (provided)
Condensate hose
(provided)
7” (178 mm)
water seal
Plastic tie
mc_091410_1055
To open drain or
humidifier fill cup*
XT-200
To open drain or
humidifier fill cup*
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
OM-7607
Installation
)VNJEJGJFSXJSJOH
All wiring must be in accordance with all governing codes and with
the unit wiring diagram. Power supply wiring must be rated for
105 °C. See Figure 19-1 for the humidifier wiring diagram locations
d
Figure 19-1:
Field wiring requirements
When selecting a location for installing the humidifier:
t "WPJEBSFBTDMPTFUPTPVSDFTPGFMFDUSPNBHOFUJDFNJTTJPOTTVDI
as power distribution transformers.
Wiring diagram
inside of electrical
control cabinet door
Power
supply
t %POPUMPPQQPXFSXJSJOH
t %POPUVTFBMVNJOVNXJSF
Fused
disconnect
Conduit knockouts
Conduit and control wiring knockouts are provided on the
XT humidifier cabinet. See Figure 8-1.
CAUTION
Adding conduit connections not recommended
Adding alternate conduit connections is not recommended. If you
must make additional holes in the humidifier cabinet, protect all
internal components from debris, and vacuum out the cabinet when
finished. Failure to follow these precautions can damage sensitive
electronic components and void the DRI-STEEM warranty.
XT Humidifier
OM-7363
Notes:
t $POUSPMXJSJOHBOEQPXFSXJSJOHNVTUCFSVOJOEFEJDBUFE
or separate earthed metal conduit, cable trays, or trunking.
t 4FQBSBUFUIFMJOFWPMUBHFXJSJOHGSPNMPXWPMUBHFDPOUSPM
circuit wiring when routing electrical wiring inside the
humidifier cabinet.
t %POPUVTFDIBTTJTPSTBGFUZHSPVOETBTDVSSFOUDBSSZJOH
commons. Never use a safety ground as a conductor or
neutral to return circuit current.
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
)VNJEJGJFSXJSJOH
WARNING
Electric shock hazard
Only qualified electrical personnel
should perform field wiring installation
procedures. Improper wiring or contact
with energized circuits may cause property
damage, severe personal injury, or death
as a result of electric shock and/or fire.
Control component placement
Follow the guidelines on Page 22 for placing humidistats,
transmitters, and airflow proving switches.
Connection instructions
Before connecting power, refer to the wiring diagram or the data
plate on the outside of the cabinet for wire sizing amperage.
For control signal wiring from a humidistat, transmitter, or signal
by others, see the wiring diagrams shipped inside the humidifier.
See “Step 1 – Field wiring” in the Vapor-logic4 Installation and
Operation Manual for detailed instructions on the following:
t $POUSPMJOQVUXJSJOH
See the “Control input” section.
WARNING
Excessive moisture hazard
DRI-STEEM strongly recommends installing
a duct airflow proving switch and a duct
high limit humidistat. These devices
prevent a humidifier from making steam
when there is low airflow in the duct or
when the RH level in the duct is too high.
Failure to install these devices can result
in excessive moisture in the duct, which
can cause bacteria and mold growth or
dripping through the duct.
t %VDUBJSGMPXQSPWJOHTXJUDIBOEEVDUIJHIMJNJUIVNJEJTUBU
wiring (recommended optional devices):
See the following sections:
“Airflow proving switch” and
“Duct high limit switch or transmitter”
t 3FNPUFTJHOBMXJSJOH
See the following sections:
“Programmable triac” and
“Programmable relay (dry contact)”
mc_060310_0725
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
)VNJEJGJFSXJSJOH
Earth grounding requirements
Proper wiring prevents electrical noise.
A safety earth grounding system that meets national, state, and
local electrical codes is required. The ground connection must be
made with solid metal-to-metal connections. Ground wire should
be the same size as power wiring.
Electrical noise can produce undesirable effects
on electronic control circuits, which affects
controllability. Electrical noise is generated
by electrical equipment such as inductive
loads, electric motors, solenoid coils, welding
machinery, or fluorescent light circuits. The
electrical noise or interference generated from
these sources (and the effect on controllers)
is difficult to define, but the most common
symptoms are erratic control or intermittent
operational problems.
Important:
t 'PSNBYJNVN&.$FGGFDUJWFOFTTXJSFBMM
humidity, high limit, and airflow controls using
multicolored shielded/screened plenum-rated
cable with a drain wire for the shield/screen.
Connect the drain wire to the shield/screen
ground terminal with wire less than
2" (50 mm) in length.
t %POPUHSPVOETIJFMEBUUIFEFWJDFFOE
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
4FOTPSQMBDFNFOU
Other factors affecting humidity control
Sensor location is critical
Sensor location has a significant impact on humidifier performance.
See the recommendations below and Figure 22-1.
Note: DRI-STEEM recommends that you do not interchange room
and duct humidity devices. Room humidity devices are
calibrated with zero or little airflow, whereas duct humidity
devices require air passing across them.
Recommended humidity control (transmitter/humidistat) locations:
A Ideal. Ensures the best uniform mix of dry and moist air with
stable temperature control.
B Acceptable, but room environment can affect controllability,
such as when sensor is too close to air grilles, registers, or heat
radiation from room lighting.
C Acceptable. Provides uniform mixture of dry and moist air.
If extended time lag exists between humidity generation and
sensing, extend sampling time.
D Acceptable (behind wall or partition) for sampling entire room
if sensor is near an air exhaust return outlet. Typical placement
for sampling a critical area.
& 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 airflow.
Recommended safety (airflow and high limit) sensor location:
G Best sensing location for high limit humidistat or humidity
sensor and airflow proving switch.
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:
t 4J[FPGIVNJEJGJDBUJPOTZTUFNSFMBUJWFUP
load
t 0WFSBMMTZTUFNEZOBNJDTBTTPDJBUFEXJUI
moisture migration time lags
t "DDVSBDZPGIVNJEJTUBUTBOEIVNJEJUZ
transmitters and their location
t %SZCVMCUFNQFSBUVSFBDDVSBDZJOTQBDFPS
duct
t 7FMPDJUJFTBOEBJSGMPXQBUUFSOTJOEVDUTBOE
space environments
t &MFDUSJDBMOPJTFPSJOUFSGFSFODF
mc_072011_1656
mc_072011_1655
Figure 22-1:
Recommended sensor locations
8' to 12'
(2.4 m to 3.7 m)
min.
Outside air
High limit humidistat or high limit transmitter (set at 90% RH maximum)
for VAV applications
Damper control
Relief air
Return air
Airflow switch or differential pressure switch (sail type
recommended for VAV applications)
Air handling unit
C
G
Wall or
partition
Window
Vapor absorption has taken place
Point of vapor absorption
D
E
F
Humidifier dispersion assembly
Turning vanes
A
B
F
mc_060508_0750-XT
Doorway
E
F
Window
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
DC-1084
Installation
% J T Q F S T J P O 4 F M F D U J O H U I F E J T Q F S T J P O B T T F N C M Z
MPDBUJPO
DRI-STEEM humidifiers 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.
t 'PSFBDIEJTQFSTJPOEFWJDF%3*45&&.EPDVNFOUTEJTUBODFT
required for non-wetting to occur. For more information about
absorption non-wetting distances, see the non-wetting tables in
this humidifier's product catalog, available for viewing, printing
or ordering at www.dristeem.com.
t *OHFOFSBMUIFEJTQFSTJPOBTTFNCMZJTCFTUQMBDFEXIFSFUIF
air can absorb the moisture being added without causing
condensation at or after the unit. This normally will be after the
heating coil or where the air temperature is highest.
t 1MBDFUIFEJTQFSTJPOBTTFNCMZTVDIUIBUabsorption will occur
– before the intake of a high efficiency filter, because the filter
can remove the visible moisture and become waterlogged;
– before coming in contact with any metal surface;
– before fire or smoke detection devices;
– before a split in the duct; otherwise, the dispersion assembly
can direct more moisture into one duct than the other.
t 8IFOESBJOJOHEJTQFSTJPODPOEFOTBUFUPBOPQFOESBJOQSPWJEF
BNN
BJSHBQCFUXFFOUIFDPOEFOTBUFESBJOQJQJOH
and the drain. Locate the gap only in spaces with adequate
temperature and air movement to absorb flash steam; otherwise,
condensation may form on nearby surfaces.
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
XT humidifier steam outlet
The steam outlet on the humidifier is sized
to the output of the humidifier. DO NOT use
interconnecting steam hose, tubing, or piping
with an inside diameter smaller than the
humidifier steam outlet. Reducing the inside
diameter will result in the internal humidifier
system pressure exceeding the parameters for
acceptable performance.
t 4FFNBYJNVNTZTUFNQSFTTVSFJO5BCMF
t 4FFNBYJNVNTUFBNDBSSZJOHDBQBDJUJFTJO
Table 24-2.
t *GUIFIVNJEJGJFSNVTUCFMPDBUFEIJHIFSUIBO
the dispersion assembly, use the recommended
installation shown in Figure 30-1.
mc_060210_0838
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O *OUFSDPOOFDUJOH QJQJOH SFRVJSFNFOUT
Condensate control and collection
Table 24-1:
Insulated 1½" (DN40) steam tubing maximum lengths for XT
models 5 through 50
Controlling condensate flow and collection in an
XT humidifier system is critical to performance.
To maximize humidifier performance, follow all
installation recommendations for your humidifier
and dispersion assembly from here through
Page 43.
Maximum developed length*
XT model
See Tables 24-1 and 24-2.
ft
m
5
13
4.0
10
25
7.6
20
50
15.2
30**
50
15.2
50**
50
15.2
Notes:
t 'PSMBSHFS95NPEFMTTFF5BCMF24-2.
* Maximum developed lengths are based on 5% steam loss in piping. Developed length
equals measured length plus 50% of measured length to account for pipe fittings.
** Values in this table are based on duct static pressure of 2" wc (498 Pa). For XT models
30 and 50, if maximum developed length is more than 20' (6 m), and duct static
pressure exceeds 2" wc (498 Pa), a fill cup extension kit (Figure 11-1) is required.
mc_021511_1715
Table 24-2:
Maximum steam carrying capacity and length of interconnecting steam hose, tubing, and pipe for XT humidifiers
Copper or stainless steel tubing and Schedule 40 steel pipe
(Insulate tubing or piping to minimize loss of capacity and efficiency.)
DRI-STEEM steam hose*
XT
model
Hose I.D.
Maximum capacity
per cylinder†
Maximum length ††
Tube or pipe size
Maximum capacity
per cylinder†
Maximum
developed length†††
inches
DN
lbs/hr
kg/h
ft
m
inches
DN
lbs/hr
kg/h
ft
m
75 and 150
1½
40
75
34.0
10
3
1½
40
75
34.0
100
30
100 and 200
2
50
100
45.4
10
3
2
50
100
45.4
100
30
Notes:
t 4FF5BCMF24-1 for XT humidifiers with lower capacities using 1½" steam tubing.
t 7BMVFTJOUIJTUBCMFBSFCBTFEPODPOEFOTBUFnPXJOHXJUITUFBNTUFBNIPTFUVCJOHPSQJQFQJUDIFEUPXBSEEJTQFSTJPOEFWJDF
* When using steam hose, use DRI-STEEM steam hose for best results. Field-supplied hose may have shorter life and may cause foaming in the cylinder resulting in
condensate discharge at the dispersion assembly. Do not use steam hose for outdoor applications.
†
For XT-150 and XT-200, capacities listed are the maximum steam carrying capacity per tube or pipe attached to each cylinder, with separate steam piping from
each cylinder to the connection on the dispersion device. See Figure 35-1.
††
DRI-STEEM typically recommends 10' (3 m) maximum steam hose length pitched at 2"/ft (15%). Steam hose has a tendency to sag if it is not supported for its
full length. Sagging leads to collecting condensate and system pressure issues. Hard pipe or tubing is less prone to sagging and can allow for 1/8"/ft (1%) pitch
minimum with longer runs.
†††
Developed length equals measured length plus 50% of measured length to account for pipe fittings.
mc_091410_1050-XT
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O *OUFSDPOOFDUJOH QJQJOH SFRVJSFNFOUT
Connecting to humidifier with steam hose
t 4VQQPSUTUFBNIPTFGPSJUTGVMMMFOHUIUPQSFWFOUTBHTPSMPX
spots:
– For single dispersion tube without condensate drain, maintain
BNJOJNVNQJUDIPGGU
UPXBSEUIFTUFBNDZMJOEFS
– For dispersion devices with condensate drain, maintain a
NJOJNVNQJUDIPGGU
UPXBSEUIFEJTQFSTJPOEFWJDF
For hard pipe connections, see “Connecting to
humidifier with tubing or pipe” on Page 31.
t 6TF%3*45&&.TUFBNIPTF0UIFSNBOVGBDUVSFSTPGTUFBN
hose may use unacceptable release agents or material mixes
that can affect humidifier system performance adversely. Using
hose from alternative manufacturers increases the possibility
of foaming in the cylinder and accelerated steam hose aging.
Foaming causes condensate discharge at the dispersion
assembly.
t %POPUVTFTUFBNIPTFJOPVUEPPSBQQMJDBUJPOT
t %POPUJOTVMBUFTUFBNIPTF*OTVMBUJPODBVTFTBDDFMFSBUFEIFBU
aging, causing the steam hose to become hard and susceptible to
failure due to cracks.
t 'PSTJOHMFUVCFBQQMJDBUJPOTTFFIPTFLJUTJ[FTJO5BCMF
Important:
Steam hose must be supported for its full length
to prevent sagging or low spots.
Table 25-1:
Steam loss of interconnecting steam hose, tubing, and pipe
Steam loss
Nominal hose, tubing or pipe size
Description
Noninsulated
Insulation thickness
Insulated
inches
DN
lbs/hr/ft
kg/h/m
lbs/hr/ft
kg/h/m
inches
mm
1½
40
0.15
0.22
N/A
N/A
N/A
N/A
2
50
0.20
0.30
N/A
N/A
N/A
N/A
1½
40
0.11
0.164
0.02
0.03
2
50
2
50
0.14
0.21
0.025
0.037
2
50
1½
40
0.22
0.33
0.02
0.03
2
50
2
50
0.25
0.38
0.025
0.037
2
50
Hose
Tubing
Pipe
Note: These data are based on an ambient air temperature of 80 °F (27 °C), fiberglass insulation, copper tubing, and Schedule 40 pipe.
mc_051310_1215
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 4 U F B N P V U M F U D P O O F D U J P O T 95 NPEFMT UISPVHI Figure 26-1:
Steam outlet connections, XT models 5 through 75
Steam outlet connections to steam hose
(XT models 5, 10, 20)
Steam outlet connections to tubing or pipe
(XT models 30, 50, 75)
To dispersion assembly
To dispersion assembly
1½” (DN40) tubing or pipe
(must be grounded)
1½” (DN40) steam
hose
Hose clamp
Hose clamp
Connector kit (provided)
See Caution below
1” (DN25) steam hose,
12" (305 mm) long
1½” (DN40) I.D. steam hose,
12" (305 mm) long
Hose clamp
OM-7622
OM-7623
CAUTION
Connector kit location
Install the connector kit for increasing from 1” to 1½” (DN25
to DN40) hose or tube immediately above the XT humidifier as
shown above.
Failure to install the connector kit immediately above the
XT humidifier will cause system pressure fluctuations and increase
cylinder pressure, steam velocity, and condensate noise.
Notes:
t4UFBNIPTFBOEDMBNQTBSFQSPWJEFEXJUIUIFTFIVNJEJmFST
t95JTTIJQQFEXJUIBmMMDVQFYUFOTJPO
mc_022111_1600
mc_091010_1004
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 4 U F B N P V U M F U D P O O F D U J P O T X J U I I P T F 9 5 N P E F M T U I S P V H I Figure 27-1:
Steam outlet connections for XT models 100 through 200 within 10' (3 m) of dispersion assembly
Note: For horizontal runs longer than 5' (1.5 m), hard pipe or tubing is required (see Figure 35-1). Do not use steam hose.
XT-100
Steam hose* attached directly to
dispersion; see inset below.
2" (DN50) on Ultra-sorb and Rapid-sorb
XT-150
To dispersion assembly
2” (DN50)
steam hose,
10' (3 m)
maximum
Stainless steel tube
connector*
Stainless steel Y connector*
Hose clamp*
1½” (DN40) steam hose
5' (1.5 m) minimum
10' (3 m) maximum
Hose clamp*
1½” (DN40) steam hose*,
12" (305 mm) long
Hose clamp*
OM-7619
* Stainless steel Y connector, two 1½” (DN40) hoses, and four hose clamps
ship with each XT-100 humidifier.
XT-200
Stainless
steel tube
connector*
OM-7620
3” (DN80) flange connection
attached directly to dispersion
(see inset at right)
* Stainless steel tube connector, one 2" (DN50) hose, and two hose clamps
ship with each XT-150 humidifier.
Connecting multiple cylinders to a dispersion assembly
2” (DN50) steam hose*
5' (1.5 m) minimum
10' (3 m) maximum
Stainless steel
Y connector*
Hose clamp*
1½” (DN40)
steam hose*
12" (305 mm) long
2” (DN50)
steam hose connection
1½” (DN40) steam hoses from multiple cylinders
5' (1.5 m) minimum
10' (3 m) maximum
OM-7625
3” (DN80)
flange connection
2” (DN50) steam hoses
from multiple cylinders
5' (1.5 m) minimum
10' (3 m) maximum
OM-7624
OM-7621
* Stainless steel tube connector, two stainless steel Y-connectors, four 1½” (DN40)
hoses, and eight hose clamps ship with each XT-200 humidifier.
For multiple cylinders, connect the stainless steel tube connector
(provided with XT models 150 and 200; available for staged XT
humidifiers) directly to the dispersion inlet. The diameter and pitch of the
tube connector must match the inlet diameter and pitch of the dispersion
unit. Connect a maximum of two cylinders to the tube connector with
steam hose, tubing, or pipe.
mc_091010_0938
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 4JOHMFEJTQFSTJPOUVCF
Dispersion tube with or without condensate drain
t 6TF%3*45&&.TIBSEQJQFBEBQUFSLJUUPDPOOFDUUIFTUFBN
outlet to hard pipe. Use a hose cuff and clamps to connect the
steam outlet to tubing.
t 5IJOXBMMFEUVCJOHIFBUTVQGBTUFSUIBOIFBWZXBMMFEQJQF
causing less steam loss at start-up.
t )BSEQJQFPSUVCJOHEJBNFUFSNVTUNBUDI95TUFBNPVUMFU
connection.
t 4FFNBYJNVNTUFBNDBSSZJOHDBQBDJUJFTJO5BCMFBOE
steam loss in Table 25-1.
t *GNPVOUJOHUIFIVNJEJGJFSBCPWFUIFMFWFMPGEJTQFSTJPOUVCF
see “Drip tee installation” on Page 30. See also vertical riser
drip details in Figure 31-1.
Important:
Failure to follow the recommendations in this
section can result in excessive back pressure on
the humidifier. This will result in unacceptable
humidification system performance such as
leaking gaskets, blown water seals, erratic water
level control, and spitting condensate from the
dispersion tube.
mc_060210_0843
CAUTION
Connector kit location
Install the connector kit for increasing
from 1” to 1½” (DN25 to DN40) hose or
tube immediately above the XT humidifier
as shown above.
Failure to install the connector kit
immediately above the XT humidifier will
cause system pressure fluctuations and
increase cylinder pressure, steam velocity,
and condensate noise.
Dispersion tube without condensate drain,
XT models 5, 10, and 20 only
t 4FF'JHVSF
t .BYJNVNDBQBDJUZPG›%/
EJTQFSTJPOUVCFXJUIPVU
condensate drain (XT models 5, 10, and 20 only) is 28.4 lbs/hr
(13 kg/h).
t $POEFOTBUFDBOGMPXCBDLUPUIFDZMJOEFSBHBJOTUMCIS
(9.1 kg/h) steam flow. Pitch the steam supply line back toward
UIF95IVNJEJGJFSBUGU
NJOJNVN
mc_022111_1600
Figure 28-1:
Single dispersion tube without condensate drain, XT models 5, 10, and 20 only
Duct
Note: Dashed lines indicate provided by installer.
Single dispersion tube without condensate drain
Tubing and pipe must be grounded. Insulate tubing
or pipe to reduce steam loss. See Table 24-1 for
maximum piping lengths.
Pitch
1/8"/ft (1%) minimum
Pitch
2"/ft (15%)
See the first bullet in
Installation notes.
Connector kit (provided)
See Caution above
Mounting nut
3/8" - 16 (M10)
OM-7365X
Secure and seal
escutcheon plates
Dispersion tube:
Orient with tubelets (steam
orifices) pointing up.
90° long sweep or
two 45° elbows
Adapter
Dispersion tube escutcheon plate
A
A
OM-351-1
XT humidifier
Dimension A: 3.25" (82.5 mm) for 1½" tubes
mc_062810_0720-XT
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 4JOHMFEJTQFSTJPOUVCF
Dispersion tube with condensate drain, XT models 30 and 50 only
Table 29-2:
Hose kit sizing by capacity
t 4FF'JHVSF
t .BYJNVNDBQBDJUZPG›%/
EJTQFSTJPOUVCFXJUI
condensate drain (XT models 30 and 50 only) is 56.8 lbs/hr
(25.8 kg/h).
t 95NPEFMTUISPVHIIBWFDBQBDJUJFTSFRVJSJOHEJTQFSTJPO
devices with condensate drains. DRI-STEEM recommends
pitching steam piping for these models towards the dispersion
device. For XT humidifiers with capacities more than 20 lbs/hr
(9.1 kg/h), the installer should not attempt to drain condensate
back to the cylinder. When a vertical riser is required in the
steam piping, a drip tee is required in order to eliminate a
condensate collection point that will restrict steam flow. See
vertical riser examples in Figure 31-1.
t 8IFOJOTUBMMJOHBO95JGUIFEFWFMPQFEMFOHUIPGTUFBN
piping exceeds 20' (6 m) or the duct static pressure exceeds
XD1B
BGJMMDVQFYUFOTJPOJTSFDPNNFOEFE
Maximum
tube capacity
lbs/hr
kg/h
Hose kit
(steam hose, dispersion tube,
and hardware)
28.4
12.9
1½" (DN40) without drain
56.8
25.8
1½" (DN40) with drain
> 56.8
>25.8
These capacities require
multiple tube assemblies and
cannot use a single hose kit.
Capacities of XT models 75 through 200 require multiple
tube assemblies and cannot use a hose kit. For multiple
tube assemblies, see “Rapid-sorb” beginning on
Page 32.
Figure 29-1:
Single dispersion tube with condensate drain, XT models 30 and 50 only
Tubing and pipe must be grounded.
Insulate tubing or pipe to reduce
steam loss. See Table 24-1 for
maximum piping lengths.
Single dispersion tube with condensate drain; orient
dispersion tube with tubelets (steam orifices) pointing up.
Duct
Secure and seal escutcheon plates
Pitch
1/8"/ft (1%) minimum
90° long sweep
or two 45° elbows
See second bullet in
installation notes above.
6" (150 mm)
recommended
Mounting nut, 3/8"–16 (M10)
Pitch tube toward drain 1/8"/ft (1%).
¼" NPT (DN8)
OM-7650
Water seal
5" (125 mm)
½" O.D. (DN15) condensate drain tube.
Pitch ¼”/ft (2%) toward escutcheon plate.
¾" (DN20) (minimum) condensate drain tube by installer.
Must be suitable for 212 °F (100 °C) water.
1" (25 mm) air gap
XT humidifier
0QFOESBJOSFRVJSFE-PDBUFBJSHBQPOMZJOTQBDFTXJUIBEFRVBUFUFNQFSBUVSFBOEBJS
movement to absorb flash steam; otherwise, condensation may form on nearby surfaces.
Refer to governing codes for drain pipe size and maximum discharge water temperature.
Escutcheon plates
Dispersion tube
Condensate drain
A
Note: Dashed lines indicate provided by installer.
A
mc_062810_0725-XT
A
A
OM-351-1
Dimension A: 3.25" (82.5 mm) for 1½" tubes
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O %SJQUFFJOTUBMMBUJPO
Install a drip tee as shown below when the humidifier is mounted
higher than the dispersion assembly, when interconnecting hose or
piping needs to go over an obstruction, or when interconnecting
piping runs are long.
Figure 30-1:
Drip tee installation
90° long sweep or two 45° elbows
Pitch
Obstruction
Insulate tubing and hard pipe to reduce steam loss
XT humidifier
To dispersion assembly
6" (150 mm) recommended
8" (200 mm) minimum
Tubing or pipe drip tee, by installer. DRI-STEEM part number
for 1½" (DN40) 304 stainless steel inline tee kit: 191071-001
¾" (DN20)
1" (25 mm) air gap
Open funnel or floor drain. See first note below.
Notes:
t -PDBUFBJSHBQPOMZJOTQBDFTXJUIBEFRVBUFUFNQFSBUVSFBOEBJSNPWFNFOUUPBCTPSCnBTITUFBNPUIFSXJTFDPOEFOTBUJPONBZGPSNPOOFBSCZTVSGBDFT
Refer to governing codes for drain pipe size and maximum discharge water temperature.
t 4VQQPSUTUFBNIPTFGPSJUTGVMMMFOHUITPUIFSFBSFOPTBHTPSMPXTQPUT
t %BTIFEMJOFTJOEJDBUFQSPWJEFECZJOTUBMMFS
mc_062810_0645-XT
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
OM-7649
Installation
% J T Q F S T J P O $ P O O F D U J O H U P I V N J E J G J F S X J U I
UVCJOHPSQJQF
See Figures 28-1 and 29-1 for interconnecting tubing and pipe
pitch requirements for single tube applications. See Table 33-1
for interconnecting tubing and pipe pitch requirements for
Rapid-sorb applications.
t 4VQQPSUJOUFSDPOOFDUJOHQJQJOHCFUXFFOUIFIVNJEJGJFSTUFBN
outlet and the dispersion system with pipe hangers. Failure
to properly support the entire steam piping weight may cause
damage to the humidifier tank and void the warranty.
t (SPVOENFUBMTUFBNQJQFT4FFi(SPVOEJOHTUFBNQJQFTwBU
right.
t 4UFBNTVQQMZBEBQUFSTBSFBWBJMBCMFGSPN%3*45&&.5IFTF
adapters convert a tubing outlet on the humidifier to threaded
pipe, allowing a pipe connection.
t ¡FMCPXTBSFOPUSFDPNNFOEFE%3*45&&.SFDPNNFOET
90° long sweeps. Two 45° elbows, 1' (0.3 m) apart may also be
used.
t 5IJOXBMMUVCJOHIFBUTVQGBTUFSBOEDBVTFTMFTTTUBSUVQMPTT
than heavy wall pipe.
t *OTVMBUJOHIBSEQJQFSFEVDFTUIFMPTTJOPVUQVUDBVTFECZ
condensation.
t 8IFOVTJOHIBSEQJQFUBLFDBSFUPSFNPWF"--USBDFTPG
lubricants used to thread the pipe. This will minimize the
possibility of tank foaming. Denatured alcohol or mineral spirits
work best for removing lubricant.
Important:
Failure to follow the recommendations in
this section can result in excessive back
pressure on the humidifier. This will result
in unacceptable humidification system
performance such as leaking gaskets, blown
water seals, erratic water level control, and
spitting condensate from the dispersion tube.
mc_060210_0843
Grounding steam pipes
The XT humidifier has built-in functionality for
detecting and eliminating foaming in the steam
cylinder. However, because brief periods of
foaming are possible, grounding metal steam
pipes back to the XT humidifier earth grounding
lug is necessary. This earth ground will prevent
foam from creating an electrically conductive
path from the electrically charged cylinder water
to the metal steam pipe. The grounding lug is
shown in Figures 54-1 and 56-1.
Figure 31-1:
Detail of vertical riser drips
90° long sweep or two 45° elbows
Pitch
To dispersion assembly
Insulate tubing or hard pipe to reduce steam loss
Tubing or pipe drip tee
Pitch
6" (150 mm)
recommended
XT humidifier
3/4" (DN20)
8" (200 mm)
recommended
1" (25 mm)
air gap
Open funnel or floor drain
mc_030111_1650
OM-7648
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 3BQJETPSC
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
Read all dispersion instructions in this manual, and follow the
installation instructions below:
t 6OQBDLTIJQNFOUBOEWFSJGZSFDFJQUPGBMM3BQJETPSC
components with packing list. Report any shortages to
DRI-STEEM immediately. The components typically include the
following:
– Multiple dispersion tubes
– Header
o £¨NN¨NN
-CSBDLFU
Note: Dispersion tubes, header, and L-bracket are each tagged
with the customer requested identification 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
Important:
Before marking and drilling holes in the duct
PSBJSIBOEMFSSFGFSUP"--QJUDISFRVJSFNFOUT
for the Rapid-sorb assembly you received (see
Table 33-1). The size, quantity, and location of
penetrations are determined by the dimensions
and configuration of the Rapid-sorb assembly
you received.
mc_060210_0937
t -CSBDLFUNPVOUJOHIPMFTTFFOPUFBUMFGU
o -CSBDLFUNN
MPOHPSTIPSUFSIBTBNPVOUJOHIPMF
NN
GSPNFBDIFOEGPSNPVOUJOHUIF-CSBDLFUUP
the duct or air handler wall.
o -CSBDLFUMPOHFSUIBONN
IBTBOBEEJUJPOBM
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.
t 4FMFDUBOJOTUBMMBUJPOMPDBUJPOUIBUQSPWJEFTOFDFTTBSZBDDFTTJO
and around the ductwork or air handler.
Important:
Failure to follow the recommendations in this
section can result in excessive back pressure on
the humidifier. This will result in unacceptable
humidification system performance such as
leaking gaskets, blown water seals, erratic water
level control, and spitting condensate from the
dispersion tube.
mc_060210_0843
t 5IF3BQJETPSCUZQJDBMMZJTJOTUBMMFEDFOUFSFETJEFUPTJEFJOB
duct, or is installed across the face of a coil in an air handler.
t 5IFDFOUFSMJOFPGUIFPVUFSEJTQFSTJPOUVCFTTIPVMEOFWFSCF
DMPTFSUIBONN
GSPNUIFTJEFPGUIFEVDUXPSLPSBJS
handler wall.
t The following instructions are for a typical Rapid-sorb
installation — horizontal-airflow duct with Rapid-sorb header
either inside or outside the duct. See the Dri-calc Installation
Guides library or contact your representative/distributor or
DRI-STEEM for installation instructions for air handler or
vertical airflow applications.
mc_060210_0945-NA
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 3BQJETPSC
Pitch requirements
Table 33-2:
Rapid-sorb dispersion tube capacities
t 'PS3BQJETPSCXJUIUIFIFBEFSPVUTJEFB
horizontal-airflow duct, consider the following:
o ›%/
EJTQFSTJPOUVCFT6TFBGBTUFOFSPGTVGGJDJFOU
MFOHUIUPBDDPNNPEBUFUIFGU
QJUDISFRVJSFNFOUT
UPXBSEUIF£QJQFUISFBE%/
IFBEFSESBJOGJUUJOH
o %/
EJTQFSTJPOUVCFT5IFCSBDLFUDBOCFNPVOUFE
GMVTIUPUIFEVDUXPSL5IFGU
QJUDIUZQJDBMMZDBOCF
accomplished in the length of the hose cuffs used to connect
the tubes to the header.
Tube capacity
Tube diameter
lbs/hr
kg/h
inches
DN
≤ 35
≤ 16
1½
40
36-70
17-32
2
50
mc_060210_0935
Table 33-3:
Rapid-sorb header capacities
t 4FF5BCMFBOEUIFESBXJOHTPOUIFGPMMPXJOHQBHFTGPS
pitch requirements.
Header capacity
mc_060210_0953-NA
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 33-1:
Pitch of interconnecting piping, dispersion tubes, and headers for Rapid-sorb evaporative dispersion units
Airflow
Type of
interconnecting piping
Diameter of
interconnecting piping
Pitch of
interconnecting piping
Steam hose
1½" (DN40)
2" (DN50)
2"/ft (15%)
toward Rapid-sorb
Horizontal
Tubing or pipe
1½" (DN40)
2" (DN50)
1/8"/ft (1%)
toward Rapid-sorb
Steam hose
1½" (DN40)
2" (DN50)
2”/ft (15%)
toward Rapid-sorb
1½" (DN40)
2" (DN50)
1/8”/ft (1%)
toward Rapid-sorb
Vertical
Tubing or pipe
Pitch of
dispersion tubes
Pitch of
header
Vertically
plumb
1/8”/ft (1%)
toward
condensate
drain
2"/ft (15%)
toward
header
1/8”/ft (1%)
toward
condensate
drain
mc_060310_1000
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 3 B Q J E T P S C X J U I
95 NPEFMT UISPVHI Figure 34-1:
Rapid-sorb in a horizontal airflow with header inside the duct
-CSBDLFU*OTUBMMXJUInBOHFGBDJOHVQTUSFBN
EJSFDUJPOPGBJSnPX%SBXJOHTIPXT-CSBDLFU
correctly positioned for airflow.
90° long sweep
or two 45° elbows
flow
Air
Duct
Dispersion tube. Orient with
tubelets perpendicular to airflow.
Support bracket
(0.421" [11 mm] mounting holes
at top, bottom, and end)
Slip coupling or hose cuff
Tubing or pipe must be grounded.
Insulate tubing or hard pipe to
reduce steam loss. See Table 24-1
for maximum piping lengths.
Secure and seal escutcheon plates
Pitch tubing or pipe toward
Rapid-sorb 1/8"/ft (1%)
Header pitch:
1/8"/ft (1%) minimum
See Note 1
Condensate drain ¾"
pipe thread (DN20)
¾" (DN20) copper
6" (150 mm)
recommended
5" (125 mm)
recommended
1" (25 mm) air gap
Open drain required:
-PDBUFBJSHBQPOMZJOTQBDFTXJUIBEFRVBUFUFNQFSBUVSFBOEBJS
movement to absorb flash steam; otherwise, condensation may form
on nearby surfaces. Refer to governing codes for drain pipe size and
maximum discharge water temperature.
XT humidifier
Notes:
1. Use DRI-STEEM’s hard pipe adapter kit to connect steam outlet to hard pipe. Use a hose cuff and clamps to connect steam outlet to tubing.
2. See installation procedure on Pages 36 and 37.
3. Dashed lines indicate provided by installer..
mc_062810_0820-XT
WARNING
Hot surface and steam hazard
Dispersion tube, 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
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
OM-7628
Installation
% J T Q F S T J P O 3 B Q J E T P S C X J U I
95NPEFMTBOE
XT models 150 and 200 have capacities requiring dispersion
devices with condensate drains (Figure 35-1). For these models,
DRI-STEEM recommends
t SVOOJOHTFQBSBUFTUFBNQJQJOHGSPNFBDIDZMJOEFSUPUIF
connection on the dispersion device, and
t QJUDIJOHTUFBNQJQJOHUPXBSEUIFEJTQFSTJPOEFWJDF
The installer should not attempt to drain condensate back to the
cylinder. When a vertical riser is required in the steam piping, a
drip tee is required in order to eliminate a condensate collection
point that will restrict steam flow.
Figure 35-1:
Dual-cylinder XT humidifier connected to Rapid-sorb or Ultra-sorb with riser drips in steam supply lines
See installation notes in Figure 34-1.
Rapid-sorb steam dispersion panel
Pitch*
Pitch*
* Pitch 1/8"/ft (1%) minimum
toward dispersion panel.
Pitch*
Pitch*
Pitch*
Drain
Pitch*
Pitch*
Pitch*
Drip tee
Ultra-sorb steam dispersion panel
Drain
Drain
XT-150 or XT-200
mc_030111_1648
OM-7647
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 3BQJETPSC
CAUTION
Operate Rapid-sorb within rated
steam capacity
Excessive steam flow 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_072010_0930
Installing with header inside of duct for horizontal airflow
Note: See the instructions at left for installing Rapid-sorb with the
header outside the duct for horizontal airflow.
1. Mark and cut holes in ductwork or air handler for steam header
penetration, condensate drain piping, and header support
CSBDLFUGBTUFOFS"MMPXGU
IFBEFSQJUDIUPXBSEUIF
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 horizontally in
the duct.
When installing in an air handler, the rotation of the header
is often less than 90°. Typically, due to the condensate drain
piping requirements, the header can be set on the floor of the air
handler, assembled in the vertical position, and then raised and
mounted in place.
4. Mount the dispersion tubes on the header with the slip
couplings or hose cuffs:
Installing with header outside of duct
for horizontal airflow
1. Mark and cut holes in the ductwork for the
EJTQFSTJPOUVCFT6TFUIF-CSBDLFUBTB
template 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. Continue with Step 4 at right.
t 8IFOJOTUBMMJOHTMJQDPVQMJOHTGPS›%/
EJTQFSTJPO
tubes, take care not to shear O-rings.
t 4FUTMJQDPVQMJOHPOIFBEFSTUVCPSEJTQFSTJPOUVCFTP0SJOH
is resting on face of tubing.
t 3PUBUFTMJQDPVQMJOHXIJMFQVTIJOHJUPOUPUIFUVCJOH
t 0SJOHTBSFMVCSJDBUFEBUGBDUPSZ*GBEEJUJPOBMMVCSJDBUJPOJT
necessary, DO NOT use petroleum-based lubricant.
5. Allow the dispersion tubes to rest against the bottom of the
duct.
6. Position the flange of the L-bracket so it is upstream of the
tubes when the assembly is rotated into position. Fasten the
L-bracket to the end of the dispersion tubes with the provided
bolt, lock washer, and flat washer.
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 3BQJETPSC
7. Rotate the assembly up until the L-bracket aligns with the
mounting holes in the duct or air handler.
t 'PS›%/
EJTQFSTJPOUVCFT
Note:
See Page 38 for steam supply and condensate
drain line connection instructions.
– 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.
t %/
EJTQFSTJPOUVCFT
– 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 orifices are directed perpendicular to airflow.
8. Verify that all fasteners are secure:
t -CSBDLFUUPEVDU
t %JTQFSTJPOUVCFTUP-CSBDLFU
t )PTFDMBNQTPO%/
UVCFT
t )FBEFSTVQQPSUCSBDLFUGBTUFOFS
9. Secure and seal the header escutcheon plate around the header.
mc_060210_1050 -NA
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 3BQJETPSC
Figure 38-1:
Ultra-sorb with the High-efficiency Tube
option
Steam supply connections to Rapid-sorb header
Connect the steam supply interconnecting piping from the
humidifier to the Rapid-sorb. The steam supply piping requires a
NJOJNVNPGGU
QJUDIUPXBSEUIFIFBEFS
If multiple humidifiers 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
humidifiers 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
1JQJOHNVTUCFNJOJNVN£*%%/
BOESBUFEGPS¡'
(100 °C) minimum continuous operating temperature.
High-efficiency Tube option
Dispersion assemblies with the High-efficiency
Tube option are designed to produce significantly
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 fluoride (PVDF) insulating material
on the outside of the tubes. These assemblies
require careful unpacking, installation, and
handling. If your dispersion assembly has the
High-efficiency Tube option, be sure to read this
section carefully.
mc_060208_1320
The condensate drain line must be piped as shown in Figure
1SPWJEFBNN
ESPQQSJPSUPBNN
XBUFS
seal to:
t &OTVSFESBJOBHFPGDPOEFOTBUFGSPNUIFIFBEFS
t ,FFQTUFBNGSPNCMPXJOHPVUPGUIFESBJOMJOF
"GUFSUIFXBUFSTFBMSVOUIFESBJOMJOFUPBOPQFOESBJOXJUIB
(25 mm) vertical air gap.
t $VUUIFESBJOMJOFBUB¡BOHMFPOUIFFOEBCPWFUIFESBJO
to permit a direct stream of water into the drain pipe while
NBJOUBJOJOHBNN
BJSHBQ
t -PDBUFBJSHBQPOMZJOTQBDFTXJUIBEFRVBUFUFNQFSBUVSFBOE
air movement to absorb flash steam, or condensing on nearby
surfaces may occur.
All drain lines must be installed and sized according to governing
codes.
Ultra-sorb Model LV
For Ultra-sorb steam dispersion panel instructions, see the
installation, operation, and maintenance manual shipped with the
Ultra-sorb.
Also see Figure 35-1.
mc_060210_1300-XT
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 95TUFBNCMPXFST
On a call for humidity, the controller closes the contactors to
energize the humidifier electrodes and the fan relay to energize the
XT steam blowers (XTSB). When the call for humidity is satisfied,
the controller opens the humidifier contactor but keeps the XTSB
running for a preset amount of time, which is adjustable via the
Vapor-logic4 Setup menu.
As steam is discharged from the XTSB, it quickly cools and turns to a
visible fog that is lighter than air. As this fog is carried away from the
XTSB by the airstream, it tends to rise toward the ceiling. If the fog
contacts solid surfaces (columns, beams, ceiling, pipes, etc.) before it
disappears, it can condense and drip. The greater the space relative
humidity, the further the fog will rise, spread, and throw.
Table 39-1 lists the maximum rise, spread, and throw non-wetting
distances for XT humidifiers with XTSBs. Surfaces cooler than
ambient temperature, or objects located within this minimum
dimension, can cause condensation and dripping. To avoid steam
impingement on surrounding areas, observe the minimum nonwetting distances in the table.
XTSBs are field wired to the XT humidifier blower terminals. A
wiring diagram is included with the XTSB.
Steam outlet
Figure 39-1:
XTSB rise, spread, throw
Air intake
Air intake
Steam outlet
Rise
Spread
Throw
OM-7598
mc_110110_1530
mc_091310_1741
Table 39-1:
XTSB minimum non-wetting distances
Maximum
steam
capacity
XT
model
30% RH @ 70 ºF (21 ºC)
Rise
ft
m
40% RH @ 70 ºF (21 ºC)
Spread
Throw
ft
ft
m
m
Rise
ft
m
50% RH @ 70 ºF (21 ºC)
Spread
Throw
ft
ft
m
m
Rise
ft
m
60% RH @ 70 ºF (21 ºC)
Spread
Throw
ft
ft
m
m
Rise
ft
m
Spread
Throw
ft
ft
m
lbs/hr
kg/h
m
5
5
2.3
0.7 0.2
0.9 0.3
1.9 0.6
0.8 0.2
1.2 0.4
2.1 0.6
1.1 0.3
1.5 0.5
2.5 0.8
1.5 0.5
1.5 0.5
3.2
1.0
10
10
4.5
1.4 0.4
1.9 0.6
3.8 1.2
1.7 0.5
2.4 0.7
4.3 1.3
2.3 0.7
3.0 0.9
5.0 1.5
3.0 0.9
3.0 0.9
6.5
2.0
20
20
9.1
2.5 0.8
2.8 0.9
6.5 2.0
3.0 0.9
3.3 1.0
7.4 2.3
3.8 1.2
4.0 1.2
8.5 2.6
4.0 1.2
4.0 1.2 10.0 3.0
30
30
13.6
3.1 0.9
3.0 0.9
7.5 2.3
3.6 1.1
3.4 1.0
8.7 2.7
4.3 1.3
4.0 1.2
9.5 2.9
4.2 1.3
3.5 1.1 11.0 3.4
50
50
22.7
3.3 1.0
3.1 0.9
9.6 2.9
3.8 1.2
3.5 1.1 10.7 3.3
4.4 1.3
4.0 1.2 12.0 3.7
4.8 1.5
4.7 1.4 14.0 4.3
75
75
34.0
3.3 1.0
3.1 0.9
9.6 2.9
3.8 1.2
3.5 1.1 10.7 3.3
4.4 1.3
4.0 1.2 12.0 3.7
4.8 1.5
4.7 1.4 14.0 4.3
100
100
45.4
3.3 1.0
3.1 0.9
9.6 2.9
3.8 1.2
3.5 1.1 10.7 3.3
4.4 1.3
4.0 1.2 12.0 3.7
4.8 1.5
4.7 1.4 14.0 4.3
150
150
68.0
3.3 1.0
3.1 0.9
9.6 2.9
3.8 1.2
3.5 1.1 10.7 3.3
4.4 1.3
4.0 1.2 12.0 3.7
4.8 1.5
4.7 1.4 14.0 4.3
200
200
90.7
3.3 1.0
3.1 0.9
9.6 2.9
3.8 1.2
3.5 1.1 10.7 3.3
4.4 1.3
4.0 1.2 12.0 3.7
4.8 1.5
4.7 1.4 14.0 4.3
Rise:
Minimum non-wetting height above the steam outlet of the XTSB
Spread: Minimum non-wetting width from the steam outlet of the XTSB
Throw: Minimum non-wetting horizontal distance from the steam outlet of the XTSB
mc_091310_1740
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 95TUFBNCMPXFST
The XTSB can be mounted on top of an XT
humidifier cabinet, or wall-mounted remotely
from the humidifier. See Figure 41-2.
Figure 40-1:
XTSB dimensions
XTSB-20 shown
XTSB-20, for capacities up to 20 lbs/hr (9.1 kg/h),
can be directly mounted on XT humidifier models
5, 10, and 20.
Front
Side
Back
E
A
D
C
XTSB-50, for capacities up to 50 lbs/hr
(22.7 kg/h), can be directly mounted on XT
humidifier models 30 and 50.
F
B
XTSB installation must comply with governing
codes.
mc_091410_1106
Removing XTSB doors
XT humidifier and XTSB doors have lift-off hinges
for easy removal of open doors. The doors are
captivated when closed but should be removed
when open. An upward bump could damage the
door if it jumps the hinges and falls.
OM-7601
Table 40-1:
XTSB dimensions
XTSB-20
XTSB-50
Dimension
inches
mm
inches
mm
A
15.8
401
19.1
485
B
10.9
277
16.1
409
C
12.0
305
14.1
358
D
2.6
66
1.0
25
E
11.0
279
11.8
300
F
3.3
84
2.7
69
mc_091310_1742
Table 40-2:
XTSB specifications
XTSB model
Maximum capacity
Shipping weight
Operating weight
Volume airflow
Current draw at
115V (50/60 Hz)
Input
power
Noise
lbs/hr
kg/h
lbs
kg
lbs
kg
cfm
m3/min
20
20
9.1
24.0
10.9
20.9
9.5
106
3.0
0.2 A
18 W
49 dBA
50
50
22.7
41.0
18.6
38.1
17.3
665
18.8
0.23 A
23 W
53 dBA
Notes:
t 954#TTIJQTFQBSBUFMZGSPN95IVNJEJmFST
t Noise measurements taken 6.5’ (2 m) in front of XTSB cabinet.
mc_091310_1743
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 95TUFBNCMPXFST
Mounting XTSB on top of humidifier
The condensate tee kit shipped with the XTSB returns condensate
from a top-mounted XTSB to the humidifier's cylinder fill hose. See
Figure 41-1. Install the kit as follows:
1. If humidifier is not already mounted to wall, see “Wall
mounting humidifier” on Page 10.
2. Remove steam cylinder (see “Removing steam cylinder”on
Page 10).
3. Assemble condensate hose from kit to condensate outlet at base
of steam box, and install both plastic ties (included) on hose to
ensure secure connection to steam box condensate outlet.
4. Assemble hose cuff and clamp to steam port on steam box.
5. Remove knockout at left rear corner on top of humidifier
cabinet.
6. Feeding condensate hose into humidifier cabinet through knockout hole created in Step 5, place XTSB on top of humidifier, and
secure XTSB to humidifier with screws provided.
7. Push small burr of tee into loose end of condensate hose that
was fed into cabinet in Step 6.
$VUNJEQPJOUPGGJMMIPTFUIBUDPOOFDUTDFOUFSQPSUPOGJMM
cup to fill connection on floor of humidifier cabinet. Avoid
kinks by leaving slack in fill hose for cylinder installation.
*OTUBMMUFFJOGJMMIPTFUIBUXBTDVUJO4UFQ
10. Install steam cylinder (see “Installing steam cylinder” on Page 12).
Note: DRI-STEEM recommends securing top-mounted XTSB to the
wall through mounting keyholes on back of XTSB.
For wall mounting the XTSB, see Page 42.
Figure 41-1:
Condensate tee kit for top-mounted
XTSB
* Supplied with
condensate
tee kit
Steam box
Two plastic ties*
Steam port
Condensate hose*
Tee*
5/8" fill hose
(See inset below)
OM-7639
Wiring top-mounted XTSB
1. Connect humidifier terminals L1, L2, STM, C, and GRD to
matching XTSB terminals L1, L2, STM, C, and GRD. If needed,
refer to external connections diagram shipped with XTSB.
2. Tighten all terminals securely.
OM-7640
5/8" fill hose
mc_030311_1101
mc_030311_1100
Figure 41-2:
Top- and remote-mounted XTSB
Mounted on top of humidifier
Mounted remotely from humidifier
Condensate returned to steam
cylinder fill hose.
Condensate returned
to open drain.
Condensate can also be
returned to humidifier
fill cup.
Condensate from remote XTSB returned to
humidifier fill cup
Condensate
Use DRI-STEEM condensate
return
hose or copper tubing. To avoid
foaming, thoroughly flush copper
tubing to remove residue before
routing to fill cup.
Offset condensate return hose so
it is not above overflow outlet.
Overflow
outlet
OM-7596
mc_091010_0927
OM-7597
OM-7457
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
% J T Q F S T J P O 95TUFBNCMPXFST
WARNING
Standing water in XTSB
Make sure the XTSB is installed plumb. If
it is not installed plumb, standing water
can accumulate, which can:
tDBVTFCBDUFSJBBOENPMEHSPXUIXIJDI
can cause illness;
tBGGFDU954#QFSGPSNBODF
tDBVTF¡'¡$
XBUFSUP
discharge from the XTSB, which can
cause severe personal injury.
mc_030311_1109
Wall mounting XTSB
The XTSB is constructed with a pitch toward the drain; however,
it must be installed level and plumb for proper drainage. See the
Warning at left.
Follow the instructions below for your wall type:
t 8PPETUVETNN
PODFOUFS
Attach a spanner board to the wall with screws centered on
the studs. Mark hole locations on the spanner board using the
EJNFOTJPOTJO5BCMFBOEQSFESJMMNN
EJBNFUFSQJMPU
holes. Secure the XTSB to the spanner board with the bolts
provided.
t .FUBMTUVETNN
PODFOUFS
Mark hole locations at centers of studs. Using a drill bit just
MBSHFFOPVHIUPQVTIBNN
CPMUUISPVHIESJMMUISPVHI
studs and wall, and through a backing plate on other side of
wall. Push bolts through wall, studs, and backing plate. Secure
XTSB spanner board with bolts provided.
t *GNN
PODFOUFSTUVETBSFOPUBWBJMBCMF
*GNN
PODFOUFSTUVETBSFOPUBWBJMBCMFNPVOUB
spanner board on the wall, spanning two studs. If two horizontal
spanner boards are used, locate one at the top of the XTSB for
the mounting screws and the other board at the bottom of the
XTSB.
t )PMMPXCMPDLPSQPVSFEDPODSFUFXBMM
Mark hole locations on the wall using the dimensions in
Table 40-1. Drill pilot holes sized for the supplied anchors, and
mount the XTSB to the wall with the supplied screws and
anchors.
See Table 39-1 to determine clearance requirements for your
application. Make sure walls, ceilings, and other obstructions
are not within the non-wetting dimension, or condensation and
ESJQQJOHDPVMEPDDVSSFBE1BHF
1SPWJEFBUMFBTUNN
of clearance on each side of the XTSB for air intake.
mc_030311_1108
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Installation
% J T Q F S T J P O 95TUFBNCMPXFST
Wiring wall-mounted XTSB
Make the following wiring connections between the humidifier and
the XTSB, and tighten all terminals securely:
Figure 43-1:
Field-installed hole in fill cup cap for
remote XTSB
Connect humidifier terminals L1, L2, STM, C, and GRD to
matching XTSB terminals L1, L2, STM, C, and GRD.
Refer to the external connections diagram shipped with the XTSB.
Installing base plate
The XTSB has a base plate for wall-mounted XTSBs to isolate
the hot steam box from contact. After the electrical connections
are made, assemble the base plate onto the XTSB with the screws
provided.
Approximate cap orientation to
front of XT humidifier cabinet
Piping condensate to XT humidifier fill cup cap
1. Remove fill cup cap from XT humidifier, and drill a ½NN
hole in fill cup cap for XTSB-20 and XTSB-50 condensate hose
as shown in Figure 43-1.
2. Route XTSB condensate hose through hole in fill cup cap, and
secure condensate hose in place.
Note: Make sure condensate hose has a water seal, as shown
in Figure 43-2. The water seal is required to ensure
condensate drainage from the XTSB and to keep steam
from blowing out of the condensate hose.
Drill hole here for XTSB condensate hose
OM-7636X
mc_030311_1110
Figure 43-2:
XTSB condensate drain hose
XTSB-50 shown
Piping condensate to drain
The XTSB condensate hose must be routed as shown in Figure
43-2. The water seal is required to ensure condensate drainage from
the XTSB and to keep steam from blowing out of the condensate
hose.
After the water seal, run the condensate hose to an open drain. Cut
the hose at a 45 degree angle on the end above the drain to permit a
direct stream of water into the drain while maintaining an air gap.
Steam box
Condensate
hose
Plastic tie
7” (178 mm)
water seal
The condensate hose must be installed and sized according to
governing codes.
1” (25 mm)
air gap
mc_030311_1113
Spill funnel
(plumb to floor drain)
Additional instructions
Open floor drain. Refer
to governing codes
for drain pipe size and
maximum temperature
requirements.
See the following additional wall-mount XTSB instructions:
“Piping” for XTSBs, beginning on Page 16
“Interconnecting piping requirements,” beginning on Page 24.
Note:
Shown with condensate to open drain. Condensate can also be
returned to fill cup through field-installed hole in fill cup cap.
See Figure 43-1.
mc_091410_1105
OM-7600
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Installation
4VQQMZXBUFSDPOTJEFSBUJPOT
Electrode humidifiers function very differently from other
humidifier technologies. Some of the factors to consider are steam
output consistency, efficiency, cylinder life, and start-up time.
Understanding these factors and the variables that impact them will
result in proper application of this technology.
Output consistency and efficiency
%3*45&&.TDPOUSPMMFSBMHPSJUINPQUJNJ[FTTUFBNPVUQVU
consistency, water efficiency, and energy efficiency by managing
the frequency and duration of drain and fill events for the supply
water being used. The frequency and duration of drain and fill
events is proportional to the conductivity of the supply water. Less
conductive supply water requires less frequent drain and fill events,
resulting in more consistent steam output and more efficient use of
energy and water.
Cylinder life
Hard water scale coats the electrodes and eventually requires a
cylinder replacement. The harder the water, the more frequent the
need for a new cylinder.
Softened water is an option in some facilities. Because softened
water ions stay in solution to much higher concentrations than
hard water ions, softened water does not coat the electrodes nearly
as much as hard water, potentially extending cylinder life.
There are benefits and tradeoffs to consider when the application
allows a choice between hard and softened water:
t 5IFCFOFGJUPGTPGUFOFEXBUFSJTMPOHFSDZMJOEFSMJGFEFQFOEJOH
on water chemistry), but the trade-off is more frequent drain and
fill events.
t 5IFCFOFGJUPGIBSEXBUFSJTMFTTGSFRVFOUESBJOBOEGJMMFWFOUTCVU
may result in more frequent cylinder replacement.
Start-up time
Start-up time is how long it takes the humidifier to reach output
from a given demand when first installed and after cylinder
changes. The more conductive the water, the shorter the start-up
time.
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Operation
4VQQMZXBUFSDPOTJEFSBUJPOT
Water conductivity and drain and fill events
The paragraphs below explain why steam output consistency,
efficiency, cylinder life, and start-up time are impacted by water
conductivity and by drain and fill events.
8BUFSDPOEVDUJWJUZ In electrode humidifiers, steam output is
directly related to the resistance of the water in the steam cylinder
and, therefore, the conductivity of the water between the electrodes.
Higher water levels cover more electrode surface and result in more
steam; lower water levels cover less electrode surface and result in
less steam. Since water conductivity and water level both correlate
UPTUFBNPVUQVU%3*45&&.TBMHPSJUINNPOJUPSTDPOEVDUJWJUZ
and manages drain and fill events to optimize humidifier
performance and provide proper steam output.
Recommended supply water
conductivity for DRI-STEEM
electrode humidifiers is
125 to 1250 μS/cm.
%SBJOBOEGJMMFWFOUT As the water in the cylinder boils into steam,
the concentration of conductive ions increases until it reaches a
threshold that triggers a drain and fill event. This rids the cylinder
of highly conductive water and replaces it with less conductive
fill water. The more conductive the fill water and the higher the
demand, the more quickly the threshold is reached, and the more
frequently the cylinder automatically drains and fills to stay within
the parameters for proper steam output.
mc_091610_1630
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Operation
1 S J O D J Q M F P G P Q F S B U J P O
1. Controller receives a call for humidity
Figure 46-1:
XT humidifier principle of operation
4
When the RH level in the humidified space drops below set
point, the humidifier controller receives a call for humidity and
calculates a corresponding electrical current. The controller
closes the contactor, which energizes the electrodes. If there is
not enough water in the steam cylinder, the fill valve opens and
water enters the steam cylinder.
2. Energized electrodes boil water into steam
1
2
3
When the water level in the steam cylinder rises to touch the
electrodes, electrical current flows through the water between
the electrodes. Electrical resistance in the water causes the
water to heat up and boil into steam. The steam flows through
the steam outlet and through steam hose, tubing, or piping to
the XTSB or dispersion assembly, where it is discharged into
the airstream.
3. Electrical current increases to meet demand
5
(fill)
As the amount of water covering the electrodes increases,
current flow increases. The fill valve remains open until
the amperage increases to 10 percent above the current
corresponding to the demand signal. Then the fill valve closes,
and the water boils into steam.
5
(drain)
mc_111610_0455
4. Water continues to boil into steam
OM-7641X
Staging multiple XT humidifiers
Up to four XT humidifiers can be staged to
operate in sequence. In a sequenced application,
one control input signal is divided into
user-selectable control input signals for the
connected humidifiers. See the Vapor-logic4
Installation and Operation Manual for
instructions on staging multiple XT humidifiers.
As the water boils into steam, the amount of water covering the
electrodes decreases, and current flow decreases. When current
flow decreases to 10 percent below the current corresponding
to the demand signal, the fill valve opens to increase the water
level in the steam cylinder, which increases current flow and
steam production.
5. Controller initiates drain/fill events to flush conductive ions
As steam production continues, the concentration of
conductive ions in the water increases, eventually leading to
increased electrical current through the water. An algorithm
monitors water conductivity and auto tunes drain and fill
events to keep electrical current within demand parameters.
This optimizes humidifier performance based on water
conditions and steam production.
The humidifier has integral drain water tempering. Drain water
is automatically cooled before entering the drain.
mc_091010_1415
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Operation
$PNQPOFOUT
Figure 47-1:
XT humidifier components
Vapor-logic4 display
Vapor-logic4 controls all humidifier
functions and can connect to a
building automation system via
Modbus or optional BACnet or
-PO5BMLSee the Vapor-logic4
Installation and Operation Manual
for more information.
Fill cup
Connects to inlet
at bottom of steam
cylinder via fill hose
Steam outlet
Connection point for steam hose,
tubing, or pipe
Overflow
Prevents humidifier
from overfilling
Steam cylinder
Message prompts user when time
to replace
High water sensor
Filling stops if water reaches sensor
Electrodes
Electrical current between electrodes
heats water into steam
Fill hose
Cylinder drain
Overflow to drain
Water fill line connection
(under cabinet)
mc_091010_1416
OM-7641
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Operation
4UBSUVQ QSPDFEVSF
XT humidifier and XTSB doors have lift-off hinges
for easy removal of open doors. The doors are
captivated when closed but should be removed
when open. An upward bump could damage the
door if it jumps the hinges and falls.
WARNING
Electric shock hazard
Only qualified 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
fire.
Make sure cabinet doors are closed before
turning on electrical power.
After the system is installed and connected properly:
1. Verify that the humidifier, controls, piping, electrical
connections, steam supply, and dispersion units(s) are installed
according to the following:
t *OTUBMMBUJPOJOTUSVDUJPOTJOUIJTNBOVBM
t Vapor-logic4 Installation and Operation Manual
– Installation section
– Pre-installation checklist
t -BEEFSTUZMFXJSJOHEJBHSBNJOTJEFIVNJEJGJFSDBCJOFU
t &YUFSOBMDPOOFDUJPOTXJSJOHEJBHSBNJOTJEFIVNJEJGJFS
cabinet)
t "MMHPWFSOJOHDPEFT
2. Verify that all electrical connections are secure before applying
power.
3. Make sure cabinet doors and all electrical covers are in place
and secure. See Warning at left.
4. Verify that the humidifier is mounted level and securely
supported before filling with water. See operating weights in
Table 4-1.
5. Verify that the humidifier is level front to back and side to side
after it is full of water.
Safety functions
XT humidifiers are protected against
running dry — current does not flow if the
electrodes in the steam cylinder are not
submerged in water.
If the current rating exceeds 120% of nominal
current, the drain valve opens automatically. As
the water level drops, the current rating drops
back to the nominal value.
If the current rating exceeds 120% of the
nominal current after several drainage
operations, the humidifier shuts down
automatically.
Capacity limitation
XT humidifier capacity can be limited to a
user-specified maximum:
6. Read the “Operation” section of the Vapor-logic4 Installation
and Operation Manual.
Note: During start-up, do not leave the humidifier unattended.
7. Perform all applicable “Start-up checklist” items. See Page 49.
8. Monitor humidifier operation through multiple fill cycles. The
humidifier operating status appears on the keypad/display.
9. Perform the cleaning procedure as follows:
a. Operate the humidifier long enough for steam to be
produced.
b. Drain the cylinder completely using the keypad/display:
– At the Main menu, select Tank Status, and press Enter.
– Select Mode Auto, and press Enter.
– Select Drain, and press Enter.
– Let the cylinder drain for 5 to 10 minutes until empty.
c. Restart the humidifier, and repeat Steps a and b.
Using the keypad/display or Web interface, from
the Main menu, and select Tank Setup, then
select Capacity Adjustment for menu options.
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Operation
4UBSUVQDIFDLMJTU
Your humidification system may not have all of the options listed
below. If an item does not apply to your system, skip to the next
item and continue the process.
☐ Before you start, read this manual and other information sent
with your humidifier.
☐ Verify that the field wiring is done per the instructions in this
manual and per the unit wiring diagram.
☐ Do not use demineralized, deionized, or reverse-osmosis water.
☐ Confirm that all wiring is correct per the wiring diagram.
☐ Confirm that proper grounding and an approved earth ground
are provided.
The Vapor-logic4 Installation and Operation
Manual is a comprehensive operation manual.
Refer to it for information regarding the
following features:
t,FZQBEEJTQMBZBOE8FCJOUFSGBDFTFUVQBOE
menu information
t$POUSPMJOQVUTJHOBMTBOEGVODUJPOT
t4BGFUZGFBUVSFT
t"MBSNTDSFFOTBOEGBVMUNFTTBHFT
The manual was shipped with your
humidifier and is available at our Web site:
www.dristeem.com
☐ Confirm that the water fill line was thoroughly flushed before it
was connected to the humidifier.
☐ Turn water supply on and confirm that the drain valve is
closed.
If the force of air exiting the water supply lines blows the fill
cup cap off during the first fill cycle, this is not a sign of defect
or a cause for concern; simply replace the fill cup cap after all
the air has exited the water line.
☐ Turn power on and confirm that the keypad/display is
illuminated.
☐ Confirm that the airflow switch is closed.
☐ If you choose not to use the airflow switch, jumper
AFsw and 24vac.
☐ If you choose not to use on-off duct high limit, jumper
24vdc and DHL.
☐ Confirm that the high limit humidistat input is closed or
that the variable air volume (VAV) control system high limit
transmitter is connected.
☐ With sufficient water in the steam cylinder, the airflow switch
closed, the high limit humidistat closed, the door interlock
safety switch closed, and a call for humidity, verify that the heat
outputs are activated.
☐ Confirm that cleaning procedure (Step 9 on facing page) has
been performed.
☐ If you experience difficulties, see “Troubleshooting” and
“DRI-STEEM Technical Support” on Page 53.
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Maintenance
. B J O U F O B O D F Q S P D F E V S F T
WARNING
Shutdown procedure
To prevent severe bodily injury or death
from electrical shock, follow this shutdown
procedure before performing service or
maintenance procedures on this humidifier
(after cylinder is drained and cooled):
1. Use Vapor-logic4 keypad/display to
change control mode to Standby.
2. Shut off all electrical power to
humidifier using field-installed
fused disconnect, and lock all power
disconnect switches in OFF position.
3. Close field-installed manual water
supply shut-off valve.
Scheduled maintenance
At 500-hour intervals or when “Service interval reached” appears
in the Messages Log, inspect the steam cylinder, fill and drain
valves, steam hose, condensate piping, water supply piping, drain
piping, drain, and all other parts for proper operation and cleaning
requirements. Verify proper operation of the high limit humidistat,
relays, and airflow proving switch.
Steam cylinder service life
Steam cylinder service life depends on operating hours and water
hardness. If “Check cylinder” appears in the Messages Log during
and shortly after start-up, the message can be cleared and will stop
repeating after a few drain and fill events.
When “Check cylinder” appears in the Messages Log after extended
operation, the humidifier will continue to run, but the cylinder
must be replaced to ensure optimum output. Sure signs that a
cylinder needs to be replaced are when it is approximately onethird full of minerals, or minerals have bridged between electrodes.
To replace the steam cylinder, first follow the cool-down procedure
below:
Cool-down procedure
1. In Vapor-logic4 keypad/display Main menu, select Tank Status,
and press Enter.
2. Select Mode, and press Enter.
3. Select Drain, and press Enter.
4
Let steam cylinder drain for 5 to 10 minutes (drain water is
automatically tempered).
5. Close field-installed manual supply water shut-off valve, and
allow cylinder to continue draining.
WARNING
Hot water system
Cylinder and any undrained water may
be hot. To avoid injury from hot water,
follow the cool-down procedure before
proceeding with maintenance.
Replacing steam cylinder
1. When steam cylinder is completely empty, turn humidifier off.
Place all power disconnects in OFF position, and lock in OFF
position.
2. Open cabinet doors.
To open cabinet doors, use slotted screwdriver to rotate
quarter-turn fastener counterclockwise so slot is vertical.
To close cabinet doors, close right door then left door, and
push quarter-turn fastener while turning clockwise so slot is
horizontal.
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Maintenance
.BJOUFOBODF QSPDFEVSFT
3. Disconnect steam hose:
After cylinder and humidifier components have cooled, loosen
steam hose clamp and disconnect steam hose from cylinder.
4. Disconnect electrode plugs and high water sensor wire.
Note:
It is advisable to keep a spare steam cylinder
in stock during the humidification season. See
“Replacement parts" on Pages 55 and 57 for part
numbers.
5. Remove steam cylinder. See “Removing steam cylinder”on
Page 10).
6. Check drain valve:
If the drain valve port is dirty, clean per instructions on
Page 52.
See “Start-up procedure” on Page 48 if returning
humidifier to operation.
7. Check O-ring.
Ensure O-ring in drain valve body is correctly placed. Change
O-ring if necessary. Dampen O-ring seals XJUIXBUFS before
replacing cylinder. %POPUVTFMVCSJDBOUPSPUIFSTVCTUBODF
8. Install new steam cylinder. See “Installing steam cylinder” on
Page 12).
9. Connect steam hose to cylinder.
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Maintenance
.BJOUFOBODF QSPDFEVSFT
Drain valve
Always check the drain valve to determine whether it should be
cleaned before installing a new steam cylinder. Typically, the drain
valve port is as dirty as the used steam cylinder.
Figure 52-1:
Drain valve assembly
Drain valve body
Drain valve coil
1. Remove steam cylinder (see “Removing steam cylinder” on
Page 10).
2. Remove the three screws and washers securing drain cup plate
to drain cup (see Figure 52-1).
3. Disconnect 2-pin Molex plug from 24 VAC drain valve coil.
Note locations for reassembly.
Drain cup plate
4. Remove hose clamp and hose from drain valve body. Take
drain valve assembly to a sink for disassembly and cleaning.
5. Slide black, plastic cap off the drain valve coil. Remove hex nut
on top of coil, and slide coil off actuator (see Figure 52-2).
Insert
6. Loosen actuator with a wrench and unscrew from plastic valve
body.
Ground plate
7. Clean exposed plunger, spring, actuator, and plastic drain valve
body with clean water.
Drain cup
8. Reassemble. Tighten actuator 1/8 turn past hand tight.
9. Clean out end of hose. Reconnect it to drain valve body with the
hose clamp.
10. Read note in Figure 52-1, then fit mounting screws with
washers, and insert through drain cup plate.
OM-7630
Verify that
t HSPVOEQMBUFJTJOHSPPWFPGESBJODVQ
t JOTFSUJTJOQMBDFUISPVHIHSPVOEQMBUF
loop.
Failure to get ground plate and insert solidly
connected to frame will compromise ground
plane safety circuit.
11. Plug Molex plug into its mating wire harness plug.
Figure 52-2:
Drain valve body
Drain valve body
Plunger
Spring
Actuator
Drain valve coil
Nut
See “Start-up procedure” on Page 48 if returning
humidifier to operation.
Cap
OM-7631
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Maintenance
5S P V C M F T I P P U J O H
1. Review possible causes and recommended actions in the
Vapor-logic4 Installation and Operation Manual.
2. If you are still having problems, call us.
If the Troubleshooting guide does not help you solve the
problem, call us with the following information available:
t 1SPEVDUOBNFGJSNXBSFWFSTJPOBOETFSJBMOVNCFS
The product name and serial number are on the nameplate
on the right side of the XT humidifier and XTSB.
To access the firmware version:
Keypad/display: Select Diagnostics in the Main menu, select
Humidifier info, scroll down to Firmware version.
Web interface: Click Diagnostics in the toolbar, click
Humidifier info, see Firmware version below.
t 1SPCMFNEFGJOJUJPO
Example: water leaking, low humidity, high humidity, etc.
t 8IFOQSPCMFNCFHBO
Example: Always, after remodel, after a change in weather, etc.
t 4ZTUFNDIBOHFT
Example: Pressure, new service, new controller, relocation,
change in maintenance, etc.
DRI-STEEM Technical Support
Have the following information ready before calling Technical
Support (at 800-328-4447):
Humidifier model number _________________________________
Humidifier serial number _________________________________
Firmware version ________________________________________
Problem definition _______________________________________
When problem began _____________________________________
Error codes and quantity/frequency of codes __________________
_______________________________________________________
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Maintenance
3 F Q M B D F N F O U Q B S U T 95 IVNJEJGJFS NPEFMT UISPVHI Figure 54-1:
XT humidifier models 5 through 100 replacement parts
OM-7632
Side subpanel
Back subpanel
OM-7633
Grounding lug
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Maintenance
3 F Q M B D F N F O U Q B S U T 95 IVNJEJGJFS NPEFMT UISPVHI Table 55-1:
XT humidifier models 5 through 100 replacement parts
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Description
Switch, door interlock
Transformer, 208/240/480 to 24 VAC
Transformer 277 to 24 VAC
Transformer, 600 to 24 VAC
Transformer, 230/400 to 24 VAC
Contactor - 24 VAC - 35 A
Contactor - 24 VAC - 55 A
Plug, max. water level sensor
Board, current sensing, 208/240/277 V (XT-5 only)
Board, current sensing, 400/480 V
Board, current sensing, 600 V
Board, current sensing, 208/230/240/277 V
Vapor-logic4 display board
Vapor-logic4 main board
Electrode wiring kit (plugs with wires: 1 red, 1 black, 1 white)
Breaker, 1 pole, 0.5 A, 277/480 V, D curve
Kit, Cylinder, XT-5/10, 120-277 V, 1 phase
Kit, Cylinder, XT-10, 480 V, 1 phase
Kit, Cylinder, XT-10, 600 V, 1 phase
Kit, Cylinder, XT-10, 208/240 V, 3 phase
Kit, Cylinder, XT-10, 400 V, 3 phase
Kit, Cylinder, XT-10, 480 V, 3 phase
Kit, Cylinder, XT-10, 600 V, 3 phase
Kit, Cylinder, XT-20, 208-277 V, 1 phase
Kit, Cylinder, XT-20, 480 V, 1 phase
Kit, Cylinder, XT-20, 600 V, 1 phase
Kit, Cylinder, XT-20, 208-277 V, 3 phase
Kit, Cylinder, XT-20, 400 V, 3 phase
Kit, Cylinder, XT-20, 480 V, 3 phase
Kit, Cylinder, XT-20, 600 V, 3 phase
Kit, Cylinder, XT-30, 208/240 V, 3 phase
Kit, Cylinder, XT-30, 400 V, 3 phase
Kit, Cylinder, XT-30, 480 V, 3 phase
Kit, Cylinder, XT-30, 600 V, 3 phase
Kit, Cylinder, XT-50, 208/240 V, 3 phase
Kit, Cylinder, XT-50 ,400 V, 3 phase
Kit, Cylinder, XT-50, 480/600 V, 3 phase
Kit, Cylinder, XT-75, 400 V, 3 phase
Kit, Cylinder, XT-75, 480/600 V, 3 phase
Kit, Cylinder, XT-100, 400 V, 3 phase
Kit, Cylinder, XT-100, 480/600 V, 3 phase
Strainer, cylinder
Drain valve assembly (see parts in Figure 52-1)
Fill valve assembly XT-5/10
Fill valve assembly XT-20/30/50
Fill valve assembly XT-75/100/150/200
Fill cup extension kit (see parts in Figure 11-1)
Clip, quarter-turn fastener
Relay socket
Relay, DPDT, Finder
Part No.
530010-002
408965-001
408982
408986
408985
407010-001
407010-002
530010-105
530013-001
530013-002
530013-003
530013-004
408495-004
408495-001
194625-001
406775-010
194601-001
194601-002
194601-003
194601-004
194601-005
194601-006
194601-007
194601-008
194601-009
194601-010
194601-011
194601-012
194601-013
194601-014
194601-015
194601-016
194601-017
194601-018
194601-019
194601-020
194601-022
194601-023
194601-025
194601-026
194601-028
531006
194610-001
194622-001
194622-002
194622-003
194605-100
700458-003
407900-019
407900-016
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Maintenance
3 F Q M B D F N F O U Q B S U T 95IVNJEJGJFSNPEFMTBOE
Figure 56-1:
XT humidifier models 150 and 200 replacement parts
OM-7634
Back subpanel
Side subpanel
OM-7635
Grounding lug
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Maintenance
3 F Q M B D F N F O U Q B S U T 95IVNJEJGJFSNPEFMTBOE
Table 57-1:
XT humidifier models 150 and 200 replacement parts
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Description
Switch, door interlock
Transformer, 208/240/480 to 24 VAC
Transformer, 600 to 24 VAC
Transformer, 230/400 to 24 VAC
Contactor - 24 VAC - 35 A
Contactor - 24 VAC - 55 A
Plug, max. water level sensor
Board, current sensing, 400/480 V
Board, current sensing, 600 V
Vapor-logic4 display board
Vapor-logic4 main board
Electrode wiring kit (plugs with wires: 1 red, 1 black, 1 white)
Breaker, 1 pole, 0.5 A, 277/480 V, D curve
Kit, Cylinder, XT-75, 400 V, 3 phase (order 2 for XT-150)
Kit, Cylinder, XT-75, 480/600 V, 3 phase (order 2 for XT-150)
Kit, Cylinder, XT-100, 400 V, 3 phase (order 2 for XT-200)
Kit, Cylinder, XT-100, 480/600 V, 3 phase (order 2 for XT-200)
Strainer, cylinder
Drain valve assembly (see parts in Figure 52-1)
Fill valve assembly XT-75/100/150/200
Fill cup extension kit (see parts in Figure 11-1)
Clip, quarter-turn fastener
Relay socket
Relay, DPDT Finder
Breaker, 40 A
Breaker, 50 A
Breaker, 63 A
Part No.
530010-002
408965-001
408986
408985
407010-001
407010-002
530010-105
530013-002
530013-003
408495-004
408495-001
194625-001
406775-010
194601-023
194601-025
194601-026
194601-028
531006
194610-001
194622-003
194605-100
700458-003
407900-019
407900-016
406776-040
406776-050
406776-063
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Maintenance
3 F Q M B D F N F O U Q B S U T 4UFBNCMPXFST954#BOE954#
Figure 58-1:
XTSB-20 and XTSB-50 replacement parts
XTSB-50 shown
OM-7638
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Maintenance
3 F Q M B D F N F O U Q B S U T 4UFBNCMPXFST954#BOE954#
Table 59-1:
XTSB-20 and XTSB-50 replacement parts
Item
Description
Part No.
Fan (XTSB-20)
407109-002
Fan (XTSB-50)
306376
2
Breaker, 0.5A, 480V
406775-010
3
Finder relay socket
407900-019
4
Finder relay
407900-016
Transformer, XTSB-20, 208/240/277V
408963-001
Transformer, XTSB-20, 480V
408963-002
Transformer, XTSB-20, 600V
408963-003
Transformer, XTSB-50, 208/240/277V
408963-011
Transformer, XTSB-50, 480V
408963-012
Transformer, XTSB-50, 600V
408963-013
Transformer, XTSB-20/50, 230/400V
408963-014
Clip, quarter-turn fastener
700458-003
1
5
6
%3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM t 1BHF Warranty
Expect quality from the industry leader
Two-year Limited Warranty
For more than 45 years, DRI-STEEM has
been leading the industry with creative and
reliable humidification solutions. Our focus on
quality is evident in the construction of the
XT humidifier. DRI-STEEM leads the industry
with a Two-year -JNJUFE8BSSBOUZBOEPQUJPOBM
extended warranty.
DRI-STEEM Corporation (“DRI-STEEM”) warrants to the original user that its
products will be free from defects in materials and workmanship for a period
of two (2) years after installation or twenty-seven (27) months from the date
DRI-STEEM ships such product, whichever date is the earlier.
For more information
www.dristeem.com
[email protected]
For the most recent product information
visit our web site:
www.dristeem.com
If any DRI-STEEM product is found to be defective in material or workmanship
EVSJOHUIFBQQMJDBCMFXBSSBOUZQFSJPE%3*45&&.TFOUJSFMJBCJMJUZBOEUIF
QVSDIBTFSTTPMFBOEFYDMVTJWFSFNFEZTIBMMCFUIFSFQBJSPSSFQMBDFNFOUPGUIF
EFGFDUJWFQSPEVDUPSUIFSFGVOEPGUIFQVSDIBTFQSJDFBU%3*45&&.TFMFDUJPO
DRI-STEEM shall not be liable for any costs or expenses, whether direct or
indirect, associated with the installation, removal or reinstallation of any defective
product. The Limited Warranty does not include cylinder replacement for electrode
steam humidifiers.
%3*45&&.T-JNJUFE8BSSBOUZTIBMMOPUCFFGGFDUJWFPSBDUJPOBCMFVOMFTT
there is compliance with all installation and operating instructions furnished by
DRI-STEEM, or if the products have been modified or altered without the written
consent of DRI-STEEM, or if such products have been subject to accident, misuse,
mishandling, tampering, negligence or improper maintenance. Any warranty claim
must be submitted to DRI-STEEM in writing within the stated warranty period.
Defective parts may be required to be returned to DRI-STEEM.
%3*45&&.T-JNJUFE8BSSBOUZJTNBEFJOMJFVPGBOE%3*45&&.EJTDMBJNT
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.
DRI-STEEM Corporation
An ISO 9001:2000 certified company
European office:
Marc Briers
Grote Hellekensstraat 54 b
B-3520 Zonhoven
Belgium
+3211823595 (voice)
+3211817948 (fax)
E-mail: [email protected]
U.S. Headquarters:
14949 Technology Drive
Eden Prairie, MN 55344
800-328-4447 or 952-949-2415
952-229-3200 (fax)
Continuous product improvement is a policy of
DRI-STEEM Corporation; therefore, product features and
specifications are subject to change without notice.
DRI-STEEM, Rapid-sorb, and Ultra-sorb are registered
trademarks of DRI-STEEM Corporation and are filed for
trademark registration in Canada and the European
community.
Product and corporate names used in this document may
be trademarks or registered trademarks. They are used
for explanation only without intent to infringe.
DRI-STEEM 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 DRI-STEEM has notice of the possibility of
such damages.
#ZQVSDIBTJOH%3*45&&.TQSPEVDUTUIFQVSDIBTFSBHSFFTUPUIFUFSNTBOE
conditions of this Limited Warranty.
Extended warranty
The original user may extend the term of the DRI-STEEM Limited Warranty
for a limited number of months past the initial applicable warranty period and
term provided in the first paragraph of this Limited Warranty. All the terms and
conditions of the Limited Warranty during the initial applicable warranty period
and term shall apply during any extended term. An extended warranty term of
an additional twelve (12) months or twenty four (24) months of coverage may be
purchased. The extended warranty term may be purchased until eighteen (18)
months after the product is shipped, after which time no extended warranties are
available.
Any extension of the Limited Warranty under this program must be in writing,
signed by DRI-STEEM, and paid for in full by the purchaser.
© 2011 DRI-STEEM Corporation
mc_051308_0630
Form No. XT-IOM-1011
Part No. 890000-140 Rev F
1BHF t %3*45&&. 95 &MFDUSPEF 4UFBN )VNJEJGJFS *OTUBMMBUJPO 0QFSBUJPO BOE .BJOUFOBODF .BOVBM
Printed on 30%
recycled paper

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