GeneralAire DS35 Elite Steam - Manual (Page 12)

. Apply silicone sealant to the mounting plate and insert the pipe through the hole and secure it with sheet metal screws. See Fig.3.k
12 Elite Steam +03U221903 REV 2.1
F
H G
I
C
A
B B
D
I
H
G
F
1
A A
E B
A
1
2
2
X
X
30 mmX= 3”
40mmX=3.9”
3
4
5
7
6
Fig. 3.k
Fig. 3.i
FIG.3.l
3.4 Steam distribution
3.4.1 Duct steam injection
The maximum allowed duct static pressure is 2 in WC.
The Duct Mount Kit includes a plastic duct injection nozzle.
See Fig.3.i
Optional Stainless Steel Duct Distributor Pipe:
To install the distributor pipe:
1. Cut a round hole in the side of the duct to match the steam pipe and condensate return.
2
4.
3. Connect the steam and condensate hoses using the hose clamps supplied.
(Note: End support bracket supplied only with 0,9m (36”) and longer distributors.)
IMPORTANT: Allow 1 M ( 3 feet ) of straight duct downstream of the distributor pipes and nozzles for absorption of the steam. Always
allow 0.6M (2 feet) of straight duct upstream of the distributor pipes for evaporation of the steam. Turbulent air flow may require longer lengths.
3.4.2 Return Condensate Connection
The return condensate hose from the nozzle, etc. must be trapped. Coil the hose into a vertical loop and secure it
below the nozzle, etc. This trap prevents steam from being released into the cabinet. The hose end may be run
3.4.3 Steam Hoses
IMPORTANT WARNING: NINETY PERCENT (90%) OF ALL OPERATION PROBLEMS ARE CREATED BY IMPROPER STEAM
PIPING FROM THE HUMIDIFIER UNIT TO THE DUCT DISTRIBUTOR PIPES.
To avoid these problems, remember one simple fact when running the steam hose: steam naturally flows uphill,
and condensate naturally flows downhill. Run the steam hose or piping to avoid any kinks, sharp elbows, or low
spots that could collect to restrict the flow of steam to the distributor pipe, or the flow of condensate back to the
humidifier. Support the hose adequately to avoid sags, steam hose can droop after serveral years' service.
The following diagrams are to provide you with some guidelines. If you have a situation you are unsure
of, please contact technical support for instructions.
Millimeters Inch
A
B 50 mm 1.96”
C 56 mm 2.20”
D 57.5mm
E 100 mm 3.93”
F Ø22mm Ø 0.31”
G Ø22 mm Ø 0.86”
H Ø22mm Ø 1.18”
I 12or 22mm 0.47”or 0.87”
1 Steam inlet
2 Condensate drain
3 Steam inlet
4 Condensate drain
5 Flange gasket
6 End support
7 Mounting screw
Tab.3.f
3.4.1 Duct Distribution
If a duct steam distribution nozzle is to be used, select an accessible location on supply or return duct, allowing at least 36” of straight
duct (no elbows or obstructions) after the point where the nozzle will be installed and the clearances can be maintained as
per the previous drawings. See Fig.3.j To mount the steam nozzle, cut or drill a 2-1/2” hole in the duct. Apply caulk to the
to the mounting plate of the nozzle. Attach the nozzle to the duct using 4 #10 sheet metal screws (supplied). Nozzle must be
level or vertical with condensate outlet to the bottom.
Airflow 1000 cfm min.
Airflow
Min 8”
Height >8”
=
=
Airflow
1000 cfm min
1/3 Height
Fig.3.j
Airflow
1000 cfm min.
=
=
8” min
24” min
Upstream
36”min
Downstream
through the knockout at the top of the humidifier and be inserted into the hole located on top of the fill cup. The
hole may be enlarged to suit. See Fig.3.l.
2.26”
31.5 mm 1.24”