Connection To The Power Supply - Mark TA209 Livret Technique

3.2.2 TC Evaporative coolers
3.3 Notes
Inside the building, prepare the anchor points for the support chains of the air inlet duct. These must
be placed in a position to avoid excessive stress to the air inlet duct and make sure they are on the
same axis as the machine.
To anchor the unit to the ceiling or to the wall, use chains and accessories having the necessary
test certificates, made from zinc-plated steel or stainless steel and having a wire diameter of no less
than 3 mm or dimensioned for the weight to be supported, bear in mind safety margins imposed by
regulations.
Do not use aluminium alloy or similar components.
!
The ducts must be sized according to the ratings of the system and the characteristics of the fan.
!
Incorrect calculation of the size of the ducting may lead to a drop or an increase in output, causing
the activation of any safety devices in the system.

3.4 Connection to the power supply

Each unit must be connected to the power supply using an Omnipolar switch. The isolator must
have a distance between its contacts of at least 3 mm for each pole and must be placed in a position
that can be easily reached by the user. The electrical plant must be constructed according to the
regulations in force in the country where the machine is installed.
Connection to the power supply MUST be carried out by qualified personnel.
!
All components used to connect the power supply must be certified.
Before working on the power supply cables, make sure that power has cutted-off.
8
Prepare and fix an air inlet flanged duct and a frame to hold
up the unit. The flange has to be of the same dimension of the
unit's trunk duct flange.
The unit is equipped with a trunk of flanged duct that will be
fixed to the flange of the inlet duct prepared before and with
two side girders bars that will be fixed to the prepared frame.
Verify that the frame is designed to well support the weight of
the machine, doesn't cause vibrations and it must be perfectly
horizontal. If necessary to insert antivibration dumpers
between frame and the bars, this needs to be planned before
manufacturing the frame and consider to insert flexible
couplings in the hydric connections.
Position the evaporative cooler on the inlet duct.
Fix the two flanges (base duct flange-inlet duct flange)
together and the bars at the frame by using provided bolts.
We suggest to insert an outlet flexible connection between
the two flanges to avoid vibrations transmitted through the
ducts.
We suggest to insert silicone sealant between flanges to
guarantee perfect insulation from external agents.