Tecnosystemi HI-TECH PUR 4.0 User Manual page 53

The machine is designed to be installed in a false ceiling, with the possibility of ducting of the air to be treated or that has
been treated. It is usually positioned in technical rooms or corridors, with the preferred delivery ducts for the distribution
of the treated air in the various rooms. The equipment is fixed by means of an anchoring bracket, supplied together with
the recovery unit, which is used to anchor the machine to the slab or floor. The bracket has 4 ends designed to receive
the threaded bars that attach the machine. It is the responsibility of the installer to ensure the sealing capacity of the
anchoring surface.
Each machine is equipped with 4 collars, 2 for intake and 2 for expulsion, which are used for the ducted pipes of the
ventilation system. If the position of the pipes is exposed to splashes or jets of water, adequate protection must be
provided to prevent the water from wetting the internal electric motor and affecting its insulation. The clean air to be
introduced into the environment is taken directly from the outside, creating an opening on the perimeter wall of the
building, while the stale air coming from the internal rooms is expelled outside through a second opening.
It is important to leave sufficient space to allow opening of the inspection panel (for the filters and the exchange pack)
and of the box for the electrical connection. The ducted pipes must be fixed to the plenums of the heat recovery unit using
metal clamps to guarantee a perfect seal. Finally, the main power cable must be connected to a general, omnipolar,
approved switch and with an opening distance of the contacts greater than 3 mm.
ATTENTION: in the case of false ceiling or concealed installation, it is necessary to provide an inspection
hatch near the machine for maintenance work.
INSTALLATION CONSIDERATIONS
1.Protect the unit to avoid dust or other obstructions entering the unit and accessories during installation, or whilst in
storage on site. Service ports should be installed to allow access for filter maintenance.
2. Be sure the ceiling height is no less than the Figures in above table B column.
3. Unit must not be installed close to boiler flues.
4. Following phenomenon should be avoided in the ducting installation.
Serve bends
5. Exessive use of flex-duct and long flex-duct runs should be avoided.
6. Fire dampers must be fitted as per national and local fire regulations.
7. Unit must not be exposed to ambient temperature above 40°C and should not face an open fire.
8. Take action to avoid dew and frost.
As shown by drawing below, unit will produce dew or frost when saturation curve is formed from A to C. Use pre-heater
to ensure conditions are kept to right of the curve (B to B',to move C to C) to prevent condensation or frost formation.
Multiple direction changes
Multiple reducers / crimped duct
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