DESCRIPTION AND CHOICE OF UNIT
4.
The water-cooled heat pumps in the
VXT range with R410A refrigerant have
been designed and to satisfy winter/
summer air-conditioning needs and
the production of domestic hot water
(DHW) for medium to small users in
residential or commercial buildings.
The heat-carrying fluid used is water
from a WELL- SHEET - or installation
can be GEOTHERMIC with the use of
probes inserted into the ground.
It is a unit with
INDOOR INSTALLATION
ONLY
,(IP20 protection rating) with very
small dimensions.
This makes it easy to introduce into
the home context e.g. in the kitchen
or inside a cabinet used to contain a
refrigerator. The careful choice of the
sound-absorbent materials makes the
unit particularly silent. The change of
season takes place by inverting the flow
of refrigerant by means of the 4-way
valve.
These units, available in 5 sizes, have
extremely silent functioning and are
highly efficient and reliable, thanks to
the use of exchangers with a large
exchange surface and a low-noise high-
efficiency scroll compressor.
The VXT units remove heat from the
ground with the aid of selectors or
probes. As the temperature of the
ground tends to remain constant the
deeper you go, the power of the heat
pump does not depend on the external
temperature and even in cold days it
covers the total heat requirements of
a home with low energy consumption.
The VXT units also allow the complete
production of domestic hot water
(DHW) UP TO 55°C
The use of this heat pump contributes
to respecting the environment. For
efficient use it is very important to
carefully analyse the heating system of
the geothermic circuit. Pay particular
attention that the temperature of the
flow water is as low as possible.
FIELD OF USE
4.1.
The VXT can be used in heating plants
that already exist or new ones.
To exclude the risk of corrosion of the
braze-welded heat exchangers the
water from the well is analysed to
evaluate potential corrodibility regarding
metal materials, in compliance with the
EN 12502-1:2005 Standard
AVAILABLE VERSIONS
4.2.
Several different solutions are available
for just as many system requirements.
With the aid of the configurator, stated
below, it is possible to select the heat
pump that satisfies the requirements
of the system into which it must be
introduced.
1,2,3
4,5
6
7
8
9
VXT
10
P
R
S
T
Field
Identification
1, 2 ,3
VXT
4, 5
Sizes
06, 08, 10, 14, 16
6
Application
P
ON-OFF pump
FOR GEOTHERMIC APPLICATIONS
F
Pump with phase cut set-up
FOR GEOTHERMIC APPLICATIONS
X
Inverter Pump
FOR GEOTHERMIC APPLICATIONS
V
With 2-way modulating valve
FOR APPLICATIONS WITH WATER SHEET
7
Electric resistances
°
Standard (without DHW integrative resistances)
R
With DHW integrative resistances
8
Soft start
(as per standard in 230V/~/50 Hz versions)
°
Standard (without soft-start)
S
With Soft-start
9
Power supply
M
230V/~ /50 Hz
T
400V/~ 3N/50 Hz
6
