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5.
Exercise extreme caution when installing in
fiberglass or internally lined ducts. If
necessary, remove 4-6 feet of the lining where
the steam is being introduced.
6.
High positive or negative static pressure ducts
or plenums have special requirements. High
positive static pressure ducts may require the
unit to be fitted with an extended external
water trap.
7.
Low temperature ducts below 60°F (15°C),
shallow ducts, or branch ducts might require
the use of a field supplied condensate drain
pan below the steam distributor. See Figure
#9.
8.
9.
Drain Pan
T·SarCeiling
Figure #9
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DrainPan
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The steam distributor mounting plate is
perpendicular to the steam distributor. When
the mounting plate is attached to the side of
the duct, the distributor is level. An upward or
downward slope to the distributor will result in
poor condensate drainage and "spitting" of
condensate in duct. See Figure #10.
Figure #10
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Always Mount Level
1,
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1-
Any distributor longer than 3 feet (1 meter)
should be supported at its end with a threaded
- 11 -
rod through top or bottom of duct. See Figure
#11.
Figure #11
3/8'
Ttveaded lbd
(Field SuWied)
~
Duct
Steam DiStlibutor
Hex
Nut
(Factory SuWlied)
10. Using duct mounting template provided, cut a
hole in side of duct just large enough to admit
steam manifold and condensate drain pipe
assembly. Use four sheet metal screws to
attach mounting plate to side of duct. See
Figure #12 and #13.
, Figure #12
1.
2.
1. Steam Distributor Mounting Plate
2. Cut Hole In Duct For Insertion Using Template
3. Mount With Four Sheet Metal Screws
Figure #13
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4.125" 3.875":
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8.25"
5.15"
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5.125" 2.875"
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3.
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