Heat Recovery Units - CIAT Climaciat Instruction Manual

7.8.3 Electrical connection.
ƒ For machines supplied without a control unit:
- When selecting the cables, take into account the routing, the ambient operating temperature and the current of the
connected motor(s).
- The selection, securing and mechanical and electrical protection of cables must conform to the regulations and laws at the
installation site. Follow the recommendations in the regulations section when selecting components and cables.
- Electrically connect the servomotors.
Units without control option: See supplier manual
ƒ
Units supplied with control unit:
ƒ
- Unwind the cable(s) fixed to the servomotors.
- Route them to the main unit by sliding them into the lower raceways (before assembling the blocks) or upper raceways
(depending on the position of the servomotors in the unit). Use the wall feedthroughs in the block concerned
- Connection: see wiring diagram.

7.9 Heat recovery units

7.9.1 Plate heat exchangers
ƒ Condensate draining connection
- Refer to your dimensional drawing for the diameters of the connections and their positions.
- Outlet on the front frame: threaded gas type steel connector.
- Fitting the siphon (see § 7.1 "Condensate drainage siphons").
ƒ Electrical connection of the bypass damper servomotors
- See dampers section (see § 7.8 Damper)
- The servomotors are only installed in the air stream. No external installation.
To prevent the risk of freezing and ice in the heat exchanger, fit pressure or temperature sensors.
7.9.2 Rotary heat exchangers
To carry out maintenance on the heat recovery unit wheel, it must be possible to remove it completely from the
AHU (e.g. to change a rotor bearing). It is therefore essential to leave sufficient free space for this during
installation.
- Handling is only permitted by qualified personnel
- For certain sizes, the rotary heat exchanger comprises a self-contained block. This block is supplied resting on its rear
surface.
- Stand the module upright using the two installed lifting lugs.
- Lift the module. Only use the lifting lugs affixed to the frame.
- Before affixing the unit's other blocks, remove the lifting lugs.
- During handling, when the heat exchanger is positioned upright, always check that it is properly supported to prevent it
from falling. Never leave it standing and unsecured to the ground, as it could be blown over.
Feet
EN - 21
EN