Positioning - Carel ultimateSAM Mode D'emploi

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 influence 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.
Exhaust Air
Outside Air
Outside air temperature sensor
1.7 Mounting
Before mounting the distributor to the duct or AHU, be sure to review the
information in the "Positioning" section of the manual. (See section 1.6.)
Check that the structural integrity of the duct or AHU is sufficient to support
the weight of the distributor where the bottom brackets are located.
Reinforce these areas if necessary. Weight tables are provided in section 9.1
of the manual.
Center the distributor within the duct as much as possible.
"ultimateSAM - user" +03U0070EF - rel. 2.0 - 20150301
Possible locations for the distributor:
a.
b.
c.
d.
e.
f.
g.
G
C
F E D B
Filter Cooling
Coil
Preheat Coil
Reheat Coil
Steam dispersion/absorption zone
Fig. 1.n
10
BEST: locate distributor far enough from fan to avoid turbulence.
Maintain adequate evaporation distance.
GOOD: provided there is enough distance from the distributor to the
fan inlet for proper evaporation.
OK: provided there is enough distance from the distributor to the
heating coil for proper evaporation (particularly if the heating coil is
electric)
POOR: workable only if the cooling coil is inactive during humidifier
operation. An active cooling coil will remove the moisture the
humidifier is trying to put in.
POOR: same problems as C&D plus the air may be very cold, increasing
evaporation distance or causing condensation.
POOR: same problems as C, D, & E plus the filters may get wet producing
an unsafe condition with growth of biologicals.
POOR: only workable if the system is 100% recirculated air with no
exhaust.
Control
3 m (10') TYP
humidity
sensor
A
Fan
Return Air
High limit
humidity
sensor
Air Proving Switch