Ier steamOvap, Installation And Operation Manual

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I N S T A L L A T I O N
Minimum distances for SRS & SRSX
Horizontal duct
Aligned
Air
Air
ht
h
H
h
hb
1
2
3
d
Air
Staggered
s
s
H
hb
h
h
ht
d
1
2
3
Figure 26, minimum distance SR in horizontal duct
Here are some guidelines to avoid condensing on the duct surface or on SR steam ramps

ht(min)
For SRS : Minimum height distance between end of top ramp (#3) and top of the duct.
ht (min) = 4.5in [115mm]
For SRC : Minimum height distance between end of top ramp (#3) and top of the duct.
ht (min) = 5in [115mm]

d(min) Minimum depth distance between top ramp and side wall of the duct.
d(min) = ht(min) = 4.5in [115min]

hb(min) Minimum height with bo om of duct
There is no minimum height distance required for the bo om ramp (#1) and the bo om of
the duct. However we recommend a minimum: hb(min)=4in [100mm]

h(min) Height in between ramps (h) should be equal / even.
h=H-(ht+hb)/(nb of ramps -1),
If ramps are aligned
h(min) = 8in [200mm]
Air flow can be in any direc on
If ramps are staggered
h(min) = 4.5in [115mm]
Important: the air flow direc on should be as
indicated on above drawing.
s(min) minimum distance between ramps
s(min) = 4in [100mm]
Ver cal duct
Same logic of spacing should be applied when
SR steam ramps are installed in a ver cal duct
‘’d’’ in ver cal duct is equivalent to ‘’ht’’ or
‘’hb’’ in horizontal duct
‘’s ‘’in ver cal duct is equivalent to ‘’h’’ in
horizontal duct configura on
Ai
r
Ai
r
S
d
Figure 27, minimum distance in ver cal duct
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