Positioning - Carel ultimateSAM Manual Del Usuario

ENG

1.6 Positioning

•
Determine the proper position for the ultimateSAM distributor in the
duct or AHU. (Fig.1.j) Most steam absorption problems are the result of
improper positioning.
•
Check that the clearance between the distributor and downstream
components is not less than the absorption distance of distributor. Refer
to the design manual for information on absorption distances for the
ultimateSAM distributor.
•
Examine all accessories shipped with the distributor. These accessories
may infl uence the positioning and mounting of the distributor as they can
facilitate the connection of the steam supply and drains to the distributor.
For additional information on these accessories, see the appropriate
sections in the manual.
•
Before mounting the distributor to the duct or AHU, review the sections of
the manual dealing with inlet and drain connections as these connections
may need to pass through the walls of the duct.
Possible locations for the distributor:
A.
BEST: locate distributor far enough from fan to avoid turbulence. Maintain
adequate evaporation distance.
B.
GOOD: provided there is enough distance from the distributor to the fan
inlet for proper evaporation.
C. OK: provided there is enough distance from the distributor to the heating
coil for proper evaporation (particularly if the heating coil is electric)
D.
POOR: workable only if the cooling coil is inactive during humidifi er
operation. An active cooling coil will remove the moisture the humidifi er
is trying to put in.
E.
POOR: same problems as C&D plus the air may be very cold, increasing
evaporation distance or causing condensation.
F. POOR: same problems as C, D, & E plus the fi lters may get wet producing
an unsafe condition with growth of biologicals.
G.
POOR: only workable if the system is 100% recirculated air with no
exhaust.
Exhaust Air
Outside Air
Outside air temperature sensor
"Ultimate SAM" +0300013EE - rel. 1.0 - 28.10.2010
G
F E D C
Filter Cooling
Coil
Preheat Coil
Reheat Coil
Steam dispersion/absorption zone
Fig. 1.j
10
Control
humidity
sensor
B
Fan
Return Air
3 m (10') TYP
A
High limit
humidity
sensor
Air Proving Switch