If you have to attach brackets or fasteners to the
AHU panels or frame, use only those specially
approved for your AHU as otherwise there is a risk of
leakages.
Setting up and connecting the hydraulic unit
Personnel:
HVAC technician
Protective equipment:
Industrial safety helmet
Hearing protection
Protective clothing
Protective gloves
Safety shoes
Safety harness
Fig. 35: Setting up the hydraulic unit
1.
Install the hydraulic unit so that it is parallel to the
wall and floor.
2.
Adjust the feet of the hydraulic unit such that it is
level (use a 19 mm wrench).
Fig. 36: Hydraulic system connection (example)
①
Supply air unit
②
Extract air unit
③
Hydraulic unit
IN
Flow
OUT Return
3.
Connect the heat exchanger with the hydraulic
If there are several heat exchangers in airflow
direction, connect the pipes in series.
The position of the connection points is given in
the order-specific approval drawing.
If you are in doubt about the position of any pipes
to be connected, please get in touch with our
Technical Service.
Heat exchanger connection
Connection on
hydraulic unit
Heat
exchanger
AHU
Description
IN-ETA
IN
Flow – extract
air
OUT-ETA
OUT
Return –
extract air
Installation
Connecting the run around coil system
Air handling unit X-CUBE
44
