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11 - TECHNICAL CHARACTERISTICS
Electrical connection: When this option is chosen, a wound bundle can be found at the top of the cabinet.
Connect this bundle to the junction box as shown on the diagram. For sensors, the cross section of cables must be a maximum
of 1.5 mm². If possible, pass the cables through the top section of the plenum using the grommet provided for this purpose and
refer to the routing recommendations in paragraph 11.3.
See electrical diagram for connection.
Operation:
A filter must be installed upstream on the fresh air side (type F7, not provided by CIAT and at customer's expense)
so that the indoor air is not adversely affected.
The option allows cooling to be carried out using outdoor air (fresh air), in accordance with the temperature and humidity
conditions, to decrease the room temperature. The opening and closing of dampers is managed by the controller according
to the information relayed by the various sensors required for correct functioning.
Thanks to these control elements, the controller manages the unit's operating mode.
The cooling contribution to reach the temperature setpoint is then carried out:
- For vertical units using chilled water
• Using fresh air only (outdoor air)
• Fresh air + heat exchange coil.
• Heat exchange coil
11.2.7 - Intake damper on the vertical unit:
This is mainly used to insulate the cabinet when it is connected to a duct system.
The damper prevents air returning to the unit when it is not operating and when other units are operating nearby.
This option is mounted and connected in the factory. Please see the dimensional drawing and connection diagram for the dimensions
and mounting holes for any potential ducts.
The damper is controlled by the controller, which is fitted with a servomotor with a reset function.
11.2.8 - Optional control elements:
- Raised floor management
This option helps maintain a constant pressure in the suspended ceiling by adapting the fan speed.
• Characteristics of the CP112 AN pressure sensor
Dimensions of the housing
(with mounting support)
EN-57
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