Plumbing Section - AERMEC HE Serie Manual De Instrucciones

hydraulic circuit
inside the unit
N.B.
For the correct design of the hydraulic sy-
stem comply with local safety regulations
currently in force. The following informa-
tion constitutes suggestions for the cor-
rect installation of the unit.
Standard equipment
The unit comes as standard with
In the versions (U):
Plate-type heat exchanger
Differential pressure switch between
the inlet and outlet of the evaporator
to avoid problems of freezing if there is
no fl ow of water.
For the sizes 020 - 025 - 030 - 040 -
050, the differential pressure switch is
replaced by a fl ow switch.
Diaphragm type expansion tank with
precharge of nitrogen.
The storage tank lowers the number of
compressor peaks and standardise the
temperature of the water to send to the
users.
Circulation pump

Plumbing section

In the versions (B):
Plate-type heat exchanger
Differential pressure switch between
the inlet and outlet of the evaporator
to avoid problems of freezing if there is
no fl ow of water.
For the sizes 020 - 025 - 030 - 040 -
050, the differential pressure switch is
replaced by a fl ow switch.
Diaphragm type expansion tank with
precharge of nitrogen.
The storage tank lowers the number of
compressor peaks and standardise the
temperature of the water to send to the
users.
Circulation pump
7