I N S T A L L A T I O N
Guideline for steam line :
There is no maximum length for steam line, however plan for the following steam losses
depending on material used and length :
Losses (lb/h/ )
[kg/h/m]
Hose
Rigid pipe (stainless steel or copper)
Diam
1-1/2in
[DN40]
2in
[DN50]
1-1/2in
[DN40]
2in
[DN50]
3in
[DN80]
4in
[DN100]
5in
[DN125]
Non insulated
0.16
[0.23]
0.22
[0.33]
0.12
[0.18]
0.15
[0.22]
0.21
[0.31]
0.27
[0.40]
0.31
[0.46]
With thermal
insula on (2in [50mm] thick)
0.03
[0.045]
0.03
[0.045]
0.04
[0.06]
0.04
[0.06]
0.05
[0.075]
steamOvap recommends the use of rigid pipe (stainless steel or copper) for steam line longer than
10 [3m].
When using flexible steam hose, ensure that the hose is maintained and a ached in order to avoid
any kink or sagging.
Cau on: Risk of malfunc on.
Steam lines should not have any restric on or blockage that
may cause a burst of pressure in the steam line.
Do not reduce diameter of the steam line from humidifier steam outlet to steam
distribu on ramp(s).
Hose kinked
will cause obstruc on
Figure 35, Kink or hose sagging will cause damage & malfunc on
Installation steps :
1. Posi oning & moun ng of
SR
steam ramp or
SO
steamOsorb mul -ramp steam grid to the
ven la on duct wall by using metal screw
2. Install steam hose or rigid steam pipe between the
IER
steam humidifier and the steam
ramp.
Note: when using rigid steam pipe (stainless steel or copper) it is a good prac ce to install
small lengths of steam hose in between steam ramp(s),
IER
humidifier and rigid pipe for
ease of installa on and service.
Allow for a 2° minimum slope.
3. Secure all steam line connec ons with hose clamps
4. For
SRC
,
SRCX
,
SOS
or
SOE
install a condensate hose in between steam ramp and
IER
humidifier or direct the condensate return hose to a building drain inlet (if more
convenient).
Provide a condensate trap of 8in [200mm] minimum
Condensate return hose or rigid pipe must be installed so that a slope of 2° minimum is
ensured.
5. Secure all condensate return line connec ons with hose clamps
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