• 20 •
1
2
3
4
5
1
2
4
3
4
3
2
1
AB
A
AB
A
BB
1
2
4
3
4
3
2
1
AB
A
AB
A
AQUALEAN - AWC/AWH - MIL118E-1407 / 10-2013
1.11.- OPTIONS
HYDRAULIC OPTIONS (Supplied loose)
UNITS INSTALLATION WITH TWO WAY VALVES. (UNITS 007 to 020).
UNITS INSTALLATION WITH THREE WAY VALVES. (UNITS 007 to 020 and 002-003 LWT version).
OPTION DESCRIPTION
FUNCTION
TYPE
REGULA-
TION
INSTALLATION
(See units installation drawing above)
WATER FILTER
(Units 007 to 020).
This option is supplied loose.
The water fi lter must be fi tted in the water
inlet of the unit, it protects the unit against
particles (greater than 1 mm) getting
inside the water circuit, and prevents the
water interchanger clogging.
The unit pressure drops are different when
a water fi lter is installed (see table page
14).
Safety Mesh
1mm
N/A Hydraulic connection: 1” G H-H
FLOW SWITCH.
(Units 007 to 020).
This option is supplied loose.
The fl ow switch stops the compressor if
water fl ow is lower than the minimum fl ow.
This option is incompatible with the water
differential pressure switch option and with
the low water temperature option.
Safety.
Minimum
water fl ow
Paddle Factory
setting
Hydraulic connection: 1”G M-H
Electric: Remove shunt and connect ac-
cording to the electrical drawing delivered
with the unit.
WATER DIFERENTIAL
PRESSURE SWITCH.
(Units 007 to 020).
This option is supplied loose.
The differential pressure switch stops the
compressor if there is not water fl ow.
This option is incompatible with the water
switch.
Safety.
Water
fl ow YES/
NO
Con-
tact
N/A Hydraulic connection: 3/8” G M
Electric: Remove shunt and connect ac-
cording to the electrical drawing delivered
with the unit.
LOW WATER TEMPER-
ATURE.
(Units 007 to 020).
The unit can work with water tempera-
tures below 16ºC (down to 0ºC) in cooling
mode.It includes 3-way valve+actuator
(supplied loose) and a high pressure
transducer included into the unit.The valve
with the actuator controls the water tempe-
rature based on condensing temperature
openning or closing the valve.
The valve is managed by the control of the
unit. The valve has to be assembled in the
return.
Water
fl ow regu-
lation
0-10 V Control
para-
metres
factory
setting
Hydraulic connection: 1”G. When install-
ing the valve be sure that the fl ow direction
is the correct.
Electric: connect according to the electrical
drawing.
2 ways installation: It is possible
to use the 3 ways valve delivered
with the option and a cap (See fi g.)
LOW WATER TEMPERA-
TURE. (LWT VERSION).
(Units 002-003).
The unit can work with water tempera-
tures below 16ºC (down to 0ºC) in cooling
and heating modes.It includes 3-way
valve+actuator (supplied loose) and a high
pressure transducer included into the unit.
The valve with the actuator controls the
water temperature based on condensing
temperature openning or closing the valve.
The valve is managed by the control of the
unit. The valve has to be assembled in the
return.
Water
fl ow regu-
lation
0-10 V Control
para-
metres
factory
setting
Hydraulic connection: 3/4”G.
Flexible connections and a 3-way valve
(4 ports).
Cap
GENERAL CHARACTERISTICS
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