Thermolec AcuSteam - Manual (Page 20)

Page 18
CONTRACT
OR
IMPORTANT: For horizontal ducts that are only 8” to 10” inch high, install the diffuser at the very bottom of the
duct with only the top two screws and rotate approximately 30º away from the airfl ow to avoid condensation
forming at the top of the duct. Please see Fig. 14e.
14.3 Install one end of the steam hose onto the steam diffuser using a hose clamp and tighten it.
14.4 After installing the humidifi er (Section 15) use the second supplied hose clamp, to install the other end
of the steam hose (4 feet long) onto the steam outlet on the top of the water tank and tighten it.
Never try to reduce the diameter of the steam hose or any added rigid piping. It has to be the same as the
diameter of the humidifi er top steam outlet fi tting. The steam must fl ow without obstruction.
WARNING : Do not let the hose sag when it is connected to the duct. Please see Fig. 14f.
A suffi cient slope with no horizontal section is mandatory to allow any condensation to fl ow back naturally
to the water tank. Please see Fig. 14g. If condensation water accumulates in the hose, the steam will not be
able to escape normally through the diffuser and will lead to a malfunction of the humidifi er. Please keep in
mind that the hose will soften when heated and will have a tendency to sag.
NOTE : If it is not possible to get enough slope for the condensation to return properly to the water tank, then
an S-shaped steam trap (not supplied) must be installed at the lowest point of the steam hose. This steam trap
hose should have a minimum height of 4”. Please see Fig. 14h.
Warm air duct
Warm air duct
Warm air Duct

WRONG
Fig. 14f
IDEAL
Fig. 14g
Min. 12”
CORRECT
Fig. 14h
Unit must be installed a
minimum of 12” below
the bottom of the duct.
Continuous slope without
sagging is MANDATORY.
Cut hose to the shortest
length possible even
though 4 feet is
supplied.
!
A CU STEAM
!
A CU STEAM
!
ACU STEAM
UP
Air flow
Fig. 14e