Carrier 30PA 180 Скачать руководство пользователя

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9 - OPTIONS

30PA

Assembly

No. of

dampers

Servos per

damper

Damper

width

90STD to 180STD

M00

150

M01

150 (*)

(*) The damper incorporates a frame (60 mm width) to

t the

damper to the fan supply.

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

ow of the desuperheater must start slowly to normal operating

condition, with a water

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 + cont 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

lter,

ller,

-drainer,
-bleeders,
-thermometers,
-pressure gauges
-cut-o

ﬀ

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.

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

ow of the air.

After this, it’s necessary to connect the electrical supply of the
servomotor.

Air

lter

These units can include a frame with gravimetric

lters in the air

return to the unit. The frame is assembled on a pro

le made of

moveable steel metal which can be removed.
The

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

PLATES

EXCHARGER

EXPANSION

VESSEL

ELECTRICAL

HEATER

MESH

FILTER

SHUT-OFF

LVE

DRAINAGE