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Page 70
2008-10-01
2 The factory assembled blower pack includes an integral steam distributor,
three tubeaxial (box) fans, fusing, wall mounting bracket, and air proving
safety circuitry.
3
Primary and control voltage terminal blocks facilitate field connections
between the humidifier.
4
Blower pack may be remote mount or built-on the humidifier.
(c) Short Absorption Manifold – NORTEC Model SAM-e
1
Short Absorption Manifold designed for atmospheric steam humidifiers or
pressurized steam from a boiler, to directly inject the steam into ducted air for
humidification.
a
Absorption distance characteristic shall prevent water accumulation on
any induct surfaces beyond ___in. (___mm) downstream of the steam
dispersion panel.
b
Steam dispersion panel consisting of a (one) horizontal stainless steel
header supplying steam to a bank of closely spaced 3" (7.6 cm) or
6" (15.2 cm) or 9" (22.9 cm) or 12" (30.5 cm) vertical tubes, as necessary
to meet absorption distance requirements, and to reduce condensation
losses.
c
Single horizontal stainless steel header to provide steam to vertical
distributor tubes and to reduce condensation losses. Dual header
systems creating unnecessary condensation, or systems needing to be
installed on a partition or requiring blank off plates are not acceptable.
d
Header design is primarily round tube to minimize pressure drop. Square
headers are not acceptable.
e
Steam inlet and condensate return located on the same side and at the
bottom of the header to allow single point entry and floor mounting.
f
Headers and tubes are 304 stainless steel construction.
g
Vertical stainless steel distribution tubes to promote condensate
evacuation. Horizontal distributor tubes are not accepted.
h
Distribution tubes shall include threaded standoffs for trouble free
attachment to factory supplied support bracket.
i
Stainless steel nozzle inserts ensure condensate free steam is
discharged from the center of the distribution tubes. Systems without
nozzle inserts, or other than stainless steel, are not acceptable.
j
Stainless steel nozzle inserts shall have metered orifices, sized to provide
even distribution of the discharged steam, spaced for optimum steam
absorption.
k
Nozzles of dissimilar metals are likely to dislodge due to inconsistent
rates of expansion and therefore not accepted.
l
Adjustable mounting frame available for quick and easy installation.
C. EXECUTION
(1) Examination
(a) Examine ducts, air handling units, and conditions for compliance with requirements
for installation tolerances and other conditions affecting performance.