22
GB
GB
3.
OPTIONAL
ACCESSORIES
3.Optional accessories supplied assembled on the unit
Discharge temperature limit sensor
(only for CW units) , which regulate the opening of the three-way valve to keep the air
temperature at the condenser outlets above a threshold value.
Discharge temperature control
(only available on CW units) which, by means of an integral proportional algorithm regulates
the opening of the three-way valve to guarantee the value of the air temperature at the condenser outlets is maintained.
Two way pressure regulating valve
Optional accessories supplied but not assembled on the unit
The following accessories are supplied with the unit:
Condensate drain pump
(C and electrical heaters versions).
Humidifier and condensate drain pump
(D version), suitable for eliminating the hot water produced by the humidifier.
AFPS Kit (Automatic Floor Pressurization System) available for chilled water units with EC fans
which enables
automatic adjustment of the air flow according to the servers which are installed, providing flexibility when installing
the infrastructure. The AFPS system guarantees automatic adjustment of the air flow issued by the perimeter units with
ED fans during ordinary and extraordinary maintenance, ensuring a constant pressure underneath the floor, avoiding
therefore the creation of Hot Spots.
Fire and/or smoke detector
Water leak detector
comprising of a control module installed inside the electrical panel and an external sensor. Connecting
numerous additional leak detector sensors or using a sensor strip probe can be carried out in order to check several
points.
The microprocessor control system can be supplied with the following optional cards:
Serial adapter RS485 card
for transmitting data to a centralized supervision system with STD or MODBUS protocol;
Clock card
for managing the time bands and the operating hours counter;
TCP / IP interface board
for connecting the units to a network with a BMS operating with a SMSP or TCP / IP protocol;
LON serial card
for connecting the units to a network with a BMS operating with LON protocol.
The following accessories are available for upflow units:
Bi-directional air discharge grill:
to be used for upflow units with non-ducted discharge from above;
Base frame
(height 200 mm) with removable front panel featuring pre-punched holes on the side to allow for connection
in case of absence of raised floor.
Base frame
(height 300 mm) for condensate drain pump installation for units with humidifier in case of absence of
300mm available under the raised floor.
Discharge plenum
(height 350 mm) for connecting the top of the unit to a false ceiling or to the air delivery channel. The
internal panels are lined with standard sound-proofing material.
Front
Discharge plenum
(height 350 mm) with front grille and a double array of fins, coated with standard sound-proofing
material .
Gravity overpressure damper for upflow units (SU**)
to prevent a reverse flow of air when the unit is not operating in
installations where there are several units in the same room fitted with masking plenum.
Motorized damper for downflow units (SD**)
to prevent a reverse flow of air when the unit is not operating, in
installations where there are several units in the same room. The damper is controlled by the remote control of the
fans and prevents reverse air flow when the unit is switched off when more than one unit is installed in the same room.
The damper is housed in a plenum positioned on the upper section of the unit with an additional height of 150mm with
varnished protection.
Height Adjustable Mounting Frame
200 mm to 600 mm and is provided complete with anti-vibration supports.
Downflow units
The following accessories are available for downflow units:
Air intake plenum
(height 350 mm) installed between the top of the unit and a false ceiling or to the air delivery channel.
The internal panels are lined with standard sound-proofing material.
Base frame
(height 350 mm) with front discharge grille insulated with standard sound-proofing material, installed on the
discharge of downflow units.
Main frame
is provided complete with anti-vibration supports.
Main frame
for assembly on a rasied access floor which is supplied with a deflector to guide the discharge air flow.
