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9 - OPTIONS
30PA
Assembly
M00
90STD to 180STD
M01
(*) The damper incorporates a frame (60 mm width) to fi t the
damper to the fan supply.
The motorized damper is supplied dismounted, together with the
machine.
In accordance with the code of practice as regards aeraulic
installation, we recommend a remote installation of the damper,
at a distance approximately equal to 3xDe (equivalent diamenter)
of the supply air duct diameter.
This stipulation is the only one allowing a best operation of the
motorized damper with a homogeneous fl ow of the air.
After this, it's necessary to connect the electrical supply of the
servomotor.
Air fi lter
These units can include a frame with gravimetric fi lters in the air
return to the unit. The frame is assembled on a profi le made of
moveable steel metal which can be removed.
The fi lters frame is removable, and upon request, it is possible to
supply the frame independently with the 30PA/PH/PAC/PHC unit,
to be joined on site.
The frame dimensions can be referred to in the technical brochure
for these units (No. 10056).
Frame width = 53 mm
No. of
Servos per
Damper
dampers
damper
width
1
1
150
1
1
150 (*)
Filters are moved by
lifting the tab and dragging
Cooling recovery circuit
The system consists in a hot water supplying by an heat recovery
system on the compressor(s) discharge gas, on an auxiliary
desuperheater exchanger.
This optional equipment is only available on request, and factory
mounted.
Operating mode
The heat recovery is possible only if the unit is running.
The desuperheater system allows a free heating of hot water with
a reduction of the total input power of the unit.
Principle and precaution of hydraulic connection
In order to allow the unit to start up and to run under good
conditions, the circuit must be as short as possible, and the water
fl ow of the desuperheater must start slowly to normal operating
condition, with a water fl ow equal to 10% of its standard value,
and must be calculated for a hot water inlet temperature of +50°C.
Thus, it is recommended to have a hydraulic diagram making
it possible to obtain very quickly a hot water at the inlet of the
desuperheater (3 ways valve + controller + temperature sensor
on the exchanger water inlet).
The controller set point must be adjusted to +50°C minimum.
■ The recovery circuit must be done in accordance with the
standards in force and plan all of the necessary elements in
a closed circuit:
- circulation pump (optionally supplied),
- expansion vessel, safety valve,
- mesh fi lter,
- fi ller,
- drainer,
- bleeders,
- thermometers,
- pressure gauges
- cut-off and insulation valves.
■ The circulation pump can only work in a closed circuit. The
command is performed from a thermostat located on the unit.
■ Attention: a detailed attention must carried with the selection
of the expansion tank, because the recovery water circuit can
reach the temperature of 120°C in the event of stopping of the
circulator or non hot water consumption.
■ Install heating elements on all pipes that could be exposed to
freezing temperatures.
30PA
Min. 50ºC
Optional
PLATES
ELECTRICAL
EXCHARGER
HEATER
FLEXIBLE
THERMOMETER
CONNECTION
MESH
MANOMETER
FILTER
Consumption
Municipal water
CIRCULATOR
SHUT-OFF
3-WAY
PUMP
VA
LVE
VALVE
AIR BLEEDER
SAFETY
CIRCUIT
VALVE
FILLED
VA
LVE
EXPANSION
NO RETURN
-
CIRCUIT
VESSEL
VALVE
DRAINAGE
15
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