Specifications

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Figure 28-1:
Rapid-sorb in a horizontal airflow with header outside the duct
L-bracket
Humidi-tech
humidifier
Duct
Secure and
seal escutcheon plates
90° long sweep or two
45° elbows
See Note 2
DC-1448
DN20
pipe thread copper
150 mm
recommended
Header pitch: 1%
minimum
25 mm air gap
125 mm
recommended
Condensate drain
DN20 pipe thread
copper
Support bracket that has
11 mm mounting holes at
top, bottom and end
Airflow
Position L-bracket so that flange is upstream of dispersion
tubes. Drawing shows L-bracket positioned for airflow
back to front.
Dispersion tube
Point tubelets perpendicular to airflow
Slip coupling or hose cuff
Pitch
(see Note 1)
Notes:
1 Pitch steam hose, tubing, or pipe toward Rapid-sorb:
– 15% when using steam hose
– 1% when using tubing or pipe
2 Use DRI-STEEM’s hard pipe adapter kit to connect steam outlet to hard
pipe. Use a hose clamp to connect steam outlet to steam hose. Use a
hose cuff and clamps to connect steam outlet to tubing.
Open drain required:
Locate air gap only in spaces with adequate temperature and air 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.
Steam hose, tubing
or pipe. Insulate
tubing and hard pipe
to reduce steam loss.
Do not insulate steam
hose. See Table 16-1
for maximum piping
lengths.
OM-351-1
A
Dimension A:
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A
Installation
Header outside of duct, horizontal airflow
1. Mark and cut holes in the ductwork for the dispersion tubes. Use
the L-bracket as a 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. Mount the dispersion tubes to the header with the slip coupling
or hose cuff (provided).
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take care not to shear the O-rings.
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the O-ring is resting on the face of the tubing.
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lubrication is necessary, DO NOT use a petroleum-based
lubricant.
Dispersion tube escutcheon plates
Dashed lines indicate provided by installer.