Carel MCmultizone, User Manual

Page: 41 / 52

41
ENG
“MCmultizone” +030221981 - rel. 2.3 - 09.12.2014
cabinet
distribution
maint
enanc
e
14. INSTRUCTIONS FOR INSTALLATION IN DUCTS
For duct applications, the solution with two probes is recommended:
•
humidity probe or signal from external controller
•
limit probe
this solution can be used indiff erently for both types of cabinet:
•
ON/OFF
•
Modulating
The modulating cabinet is recommended for this type of application.
By modulating the capacity of the atomisation system, the maximum
possible production can be delivered without ever reaching saturation
conditions inside of the duct. The atomisation manifold (Fig. 11) is made
up of an air line and a water line located below. At the end of the lines,
two ball valves should be installed for bleeding the lines.
-- RI LSAN PA1
1 O 6 8 x 6 DIN 74324 AIM 29 --
-- RI LSAN PA1
1 O 6 8 x 6 DIN 74324 AIM 29 --
-- RI LSAN PA1
1 O 6 8 x 6 DIN 74324 AIM 29 --
-- RI LSAN PA1
1 O 6 8 x 6
DIN 74324 AIM 29 --
air flow
duct
front view
duct
front view
water line
air line
cabinet air line water line
230 l/h 22 mm (1/2”G) 22 mm (1/2”G)
60 l/h 14 mm (1/2”G) 14 mm (1/2”G)
14.1 Positioning the atomisation manifold
Figure 12 shows the possible positions for the atomised water manifold.
The control cabinet must where possible be installed near the manifold
with the atomising heads.
Critical measurements for the assembly of the manifold in the duct:
1. Distance of the heads from the surfaces of the duct: :
The maximum distance H reached by the jets of atomised water
is shown in the under table. The distance H is very important for
preventing the jet of atomised water from wetting the duct; this is
the most typical installation the manifold (Fig. 14.a).
air flow
H
Fig. 14.a
Maximum distance H in mm reached by the jet
air speed
in m/s 2.7 l/h 4.0 l/h 5.4 l/h 6.8 l/h 10 l/h
distance H in mm
2.0 660 737 914 1219 1792
3.0 610 686 838 1092 1605
4.0 559 610 737 965 1419
5.0 508 559 660 838 1232
6.0 457 508 559 711 1045
7.5 406 432 483 584 859
10.0 356 381 406 432 635
If the height available is not suffi cient, the manifold can be installed
as shown in Fig. 14.b. This type of installation is used to humidify in
smaller ducts. Any losses due to condensation and removed by the
droplet separator will however be greater.
air flow
Fig. 14.b
Never fi t the heads against the fl ow
If, based on the top table, the height of the duct is not suffi
cient, one
solution may be to fi t the manifold outside the duct, with the ends
of the nozzles spraying inside, as can be seen in Fig. 14.c. This saves
around 20 cm.
air flow
Fig. 14.c