Accorroni HUB RADIATOR PLUS User manual

1
HUB RADIATOR PLUS / PLUS SOLAR
Patented high efciency heat pump system with direct
refrigerant / water exchange to produce domestic hot
water and heating for medium users with or without
solar thermal integration
HUB RADIATOR PLUS
HUB RADIATOR PLUS SOLAR
INSTALLATION MANUAL

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INDEX
GENERAL INFORMATIONS HUB RADIATOR PLUS 250 - 400 SOLAR ................................................................................................... 2
1. Main features ............................................................................................................................................................................................. 4
1.1 Appliance classication ........................................................................................................................................................................... 4
1.2 Certications - Marking CE ..................................................................................................................................................................... 4
1.3 Construction features .............................................................................................................................................................................. 4
1.4 Packaging content ................................................................................................................................................................................... 4
1.5 Standard equipment and accessories on request................................................................................................................................... 4
1.6 Field of use .............................................................................................................................................................................................. 4
1.7 Safety normes.......................................................................................................................................................................................... 4
2. CONNEXIONS U.E. / U.I. .......................................................................................................................................................................... 5
2.1 General provisions ................................................................................................................................................................................... 5
2.2 Electric connections U.E........................................................................................................................................................................... 5
2.3 Installing the refrigerant piping R410A .................................................................................................................................................... 5
2.4 Installation within 5 meters ...................................................................................................................................................................... 6
2.5 Installation with minimum permissible length .......................................................................................................................................... 6
3. OUTDOOR UNIT INSTALLATION ............................................................................................................................................................ 7
3.1 General indications................................................................................................................................................................................... 7
3.2 Distances to respect the outdoor unit ...................................................................................................................................................... 7
3.3 Roof installation........................................................................................................................................................................................ 8
3.4 Elimination of air with the vacuum pump ................................................................................................................................................ 8
3.5 Evacuation ............................................................................................................................................................................................... 8
3.6 Pump Down ............................................................................................................................................................................................. 8
3.7 Recovery procedure ................................................................................................................................................................................ 8
4. SECTION A - OUTDOOR UNIT / INDOOR UNIT TECHNICAL AND CONSTRUCTION FEATURES
HUB RADIATOR PLUS 250 - 400 SOLAR ................................................................................................................................................... 9
4.1 Internal unit dimensions and technical characteristics HUB RADIATOR PLUS / PLUS SOLAR........................................................... 9
4.2 Dimensions and technical characteristics of outdoor units HUB RADIATOR PLUS / PLUS SOLAR.................................................... 9
4.3 Indoor unit HUB RADIATOR PLUS / PLUS SOLAR............................................................................................................................... 10
4.4 Booster 3.0 outdoor unit performance characteristics............................................................................................................................. 11
4.5 Booster 7.8 outdoor unit performance characteristics............................................................................................................................. 12
4.6 Booster 9.0 Inverter outdoor unit performance characteristics................................................................................................................ 13
4.7 Technical data table Booster HUB RADIATOR PLUS / PLUS SOLAR................................................................................................... 14
4.8 DHW withdrawal table HUB RADIATOR PLUS / PLUS SOLAR 250...................................................................................................... 14
4.9 DHW withdrawal table HUB RADIATOR PLUS / PLUS SOLAR 400...................................................................................................... 15
4.10 Storage unit technical data table HUB RADIATOR PLUS / PLUS SOLAR 400.................................................................................... 15
4.11 Accessories HUB RADIATOR PLUS / PLUS SOLAR 400..................................................................................................................... 15
GENERAL INFORMATIONS
HUB RADIATOR PLUS 250 - 400 SOLAR
GENERAL WARNINGS
The instruction booklet is an integral and essential part of the
product and must be kept by the user.
Carefully read the warnings contained in the booklet as they
provide important information regarding the safety of installation,
use and maintenance.
Keep the booklet carefully for any further consultation. Installation
and maintenance must be carried out in compliance with current
regulations according to the manufacturer’s instructions and by
qualied and authorized personnel in accordance with the law.
Professionally qualied personnel means those with specic
technical expertise in the sector of components of heating
systems for civil use, production of hot water for sanitary use and
maintenance.
The personnel must have the qualications required by the law in
force.
Incorrect installation or poor maintenance can cause damage
to people, animals or things, for which the manufacturer is not
responsible.
In the event of a breakdown and / or malfunction of the appliance,
contact only qualied personnel in accordance with the law.
Any repairs to the products must be carried out only by personnel
authorized by the manufacturer, using only original spare parts.
Failure to comply with the above may compromise the safety of
the appliance.
To ensure the efciency of the appliance and for its correct
operation, it is essential to have the maintenance carried out by
qualied personnel.
If the appliance is to be sold or transferred to another owner or if
you have to move and leave the appliance, always make sure that
the booklet accompanies the appliance so that it can be consulted
by the new owner and / or by the installer.

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5. SECTION B - DIGITAL CONTROL UNIT HUB RADIATOR PLUS 250 - 400 SOLAR ............................................................................. 17
5.1 Display...................................................................................................................................................................................................... 17
5.2 Icon and display........................................................................................................................................................................................ 17
5.3 Key function.............................................................................................................................................................................................. 17
5.4 Access to parameters............................................................................................................................................................................... 18
5.5 View and change the set point................................................................................................................................................................. 18
5.6 Main alarms.............................................................................................................................................................................................. 19
5.7 Taste table causes remedies.................................................................................................................................................................... 19
6. PARAMETER TABLES............................................................................................................................................................................... 21
6.1 Sub-menu selection.................................................................................................................................................................................. 21
6.2 Conguration parameters......................................................................................................................................................................... 21
6.3 Digital control unit wiring diagram............................................................................................................................................................. 25
7/8. SECTION C - FLAT SOLAR COLLECTORS HUB RADIATOR PLUS 250 - 400 SOLAR..................................................................... 26
7.1 General information and symbols used in the manual............................................................................................................................. 26
7.2 Technical data table for at solar collector SELECTIVE.......................................................................................................................... 28
7.3 Solar collector dimensions SELECTIVE.................................................................................................................................................. 28
7.4 Dimensions and distances for forced circulation - roof installation.......................................................................................................... 28
7.5 Hydraulic circuit........................................................................................................................................................................................ 29
8. INSTRUCTIONS FOR THE INSTALLER................................................................................................................................................... 30
8.1 Examples of connections for forced circulation........................................................................................................................................ 31
8.2 Probe installation (forced circulation)....................................................................................................................................................... 32
8.3 Sizing of expansion vessels..................................................................................................................................................................... 32
8.4 Commissioning of the forced circulation system...................................................................................................................................... 33
8.5 Connection diagram for pressure restoration........................................................................................................................................... 33
8.6 Forced circulation system inspection and maintenance.......................................................................................................................... 34
8.7 List of anomalies for forced circulation systems....................................................................................................................................... 34
9. SECTION D - SOLAR STATION UNIT 2 PLUS - HUB RADIATOR PLUS 250 - 400 SOLAR.................................................................. 35
9.1 Main parts of the combined ciculation group for solar systems UNIT 2 PLUS........................................................................................ 35
9.2 Instructions for using the ow regulator when loading the system.......................................................................................................... 35
9.3 Insulation box in EPP UNIT 2 PLUS........................................................................................................................................................ 36
9.4 Provisional version of deaerator............................................................................................................................................................... 36
9.5 Solar station dimensions UNIT 2 PLUS................................................................................................................................................... 36
9.5 Fixing holes on the rear bracket............................................................................................................................................................... 36
10 SECTION E - SOLAR CONTROL UNIT CONTROL MULTI 06 S - HUB RADIATOR PLUS 250 - 400 SOLAR..................................... 37
10.1 Generality................................................................................................................................................................................................ 37
10.2 Description of the commands................................................................................................................................................................. 37
10.3 Technical features................................................................................................................................................................................... 37
10.4 Electrical connections............................................................................................................................................................................. 37
10.5 Start......................................................................................................................................................................................................... 38
10.6 Display of temperatures, speed and energy produced.......................................................................................................................... 38
10.7 Sun / Antifreeze display.......................................................................................................................................................................... 38
10.8 Installer parameters................................................................................................................................................................................ 39
10.9 Management of anomalies probable causes......................................................................................................................................... 47
11 SECTION F - WIRING DIAGRAMS - HUB RADIATOR PLUS 250 - 400 SOLAR................................................................................... 48
11.1 Wiring diagrams HUB RADIATOR PLUS SOLAR 250.......................................................................................................................... 48
11.2 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with double outdoor Booster model 7.8
(only one direct circulation group) ................................................................................................................................................................. 49
11.3 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with double outdoor Booster model 7.8 + 3.0
(only one direct circulation group) ................................................................................................................................................................. 50
11.4 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with double outdoor Booster model 7.8
(only one direct circulation group and one mixed) ........................................................................................................................................ 51
11.5 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with double outdoor Booster model 7.8 + 3.0
(only one direct circulation group and one mixed) ........................................................................................................................................ 52
11.6 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with outdoor Booster model 7.8
(only one circulation group) ........................................................................................................................................................................... 53
11.7 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with outdoor Booster model 3.0
(only one circulation group) ........................................................................................................................................................................... 54
11.9 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with outdoor Booster model 9.0 INVERTER
(only one circulation group) ........................................................................................................................................................................... 55
11.9 Wiring diagram HUB RADIATOR PLUS SOLAR 250 with outdoor Booster model 9.0 INVERTER
(only one direct circulation group and one mixed) ........................................................................................................................................ 56
12 SECTION G - HYDRAULIC DIAGRAMS - HUB RADIATOR PLUS 250 - 400 SOLAR........................................................................... 57
12.1 Application example HUB RADIATOR PLUS SOLAR 250 with double outdoor Booster model 7.8.................................................... 57
12.2 Application example HUB RADIATOR PLUS SOLAR 250 with single outdoor Booster 9.0 inverter.................................................... 58

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1.MAIN FEATURES
1.1 CLASSIFICATION OF EQUIPMENT
The fundamental elements that make up the HUB RADIATOR PLUS
/ PLUS SOLAR system are:
1) Electronically controlled external moto-evaporator dened as:
“Split air-water monobloc heat pump”, powered by R410A refrigerant
uid with ON - OFF compressor or INVERTER.
2) Indoor unit dened as a circuit accumulator radiator closed with
high efciency that keeps the technical water completely separate from
the sanitary water and is made through 2 sequential accumulators
with an octagonal section, inside which all the copper exchangers
are positioned.
Sizes from 250 liters - 400 liters
1.2 CERTIFICATIONS - CE MARKING
The patented HUB RADIATOR PLUS / PLUS SOLAR system complies
with directives 97/23 / EC and 98/37 / EEC.
They also comply with the provisions of the following directives:
73/23 / EEC, 89/336 / EEC, as amended by directive 93/68 / EEC.
The indoor unit of the HUB RADIATOR PLUS / PLUS SOLAR system
has been designed to be installed only and exclusively inside buildings
or on a special external niche that is thermally insulated and protected
from atmospheric agents, if this indication is not respected, any type
of warranty is void.
1.3 CONSTRUCTION FEATURES
All the machines are equipped with a microprocessor for controlling
and adjusting the operation and safety of the units.
Thanks to the patented direct exchange condensers, the products of
the HUB RADIATOR PLUS / PLUS SOLAR series are able to reach
high standards of energy efciency and SCOP.
Other construction features:
- the cabinet covering the outdoor unit is made for all models in sheet
metal pre-painted with epoxy powder. The compressor compartment
is completely isolated from the air / refrigerant exchanger
compartment; this allows to better protect the electromechanical
components.
- the compressor is of the high efciency rotary type, operating with
R 410A refrigerant, mounted on elastic anti-vibration supports,
driven by a single-phase electric motor for all models;
- the air / refrigerant gas exchanger is made with copper pipes and
aluminum ns blocked by mechanical expansion of the pipes, with
a large heat exchange surface;
- the fan unit consists of a helical fan driven directly by single-phase
asynchronous motor with internal thermal protection. The fans are
equipped with a safety protection grid;
- the DHW rapid exchanger, is made of copper directly immersed in
the technical water of the indoor unit with the FIRST IN - FIRST
OUT method, so as to eliminate the problem of legionella;
- the refrigeration circuit and the connections between the individual
components are made of copper tube specic for refrigeration. The
lamination member, the cycle inversion valve and the liquid
separator are part of the refrigeration circuit;
- the electrical command and control panel is directly positioned
inside the cover cabinet, above the expansion tank.
- the microprocessor control system with keyboard is located on the
control plate accessible directly on the front of the cover cabinet,
and can be remotely operated using the appropriate remote control
and command panel, available as an accessory, to be installed on
the wall or recessed ;
- the indoor unit is supplied complete with all the appropriate
internal copper exchangers, auxiliary auxiliary back up and
emergency resistor, freon connections, DHW connections, air vent
jolly valve, safety valve, lling cock, pressure gauge, diverter valve
to give priority to the domestic hot water, ow switch, electronic
circulator, expansion tank, temperature probes.
1.4 CONTENT OF THE PACKAGING
The device is shipped on wooden pallets, with extruded expanded
polystyrene protections and wrapped in a layer of plastic fabric with
air bubbles.
The identication data of the appliance are shown both on the label
on the packaging and on the technical data plate applied inside the
cover cabinet.
Do not remove the technical data plate for any reason, as the references
it contains are necessary for any maintenance interventions.
Inside the packaging there is also an envelope containing this manual
and the warranty certicate, which must be delivered to the owner
of the device so that he can keep them carefully for any future use
or for consultation.
1.5 STANDARD EQUIPMENT AND ACCESSORIES SUPPLIED
ON REQUEST
The wide range of standard equipment and accessories available on
request allow optimal use of all the functions of the machines and the
system to which they are served.
1.6 FIELD OF USE
The appliances designed and manufactured for heating water in
hydronic air conditioning systems and to produce DHW must be
used only for this purpose, in relation to their technical specications
and performance.
The quality and dimensions of the materials used guarantee a good life
time and are suitable for the operation of the devices both as a whole
and in their individual components, subject to an installation carried
out in a workmanlike manner and under conditions of mechanical
stress. chemical and thermal corresponding to a suitable use.
WARNING! All uses not expressly indicated in this manual are
consideredimproperandarenotpermitted;inparticular,theuse
of the equipment in industrial processes and / or installation in
environments with a corrosive or explosive atmosphere is not
envisaged.
The manufacturer declines any responsibility for damage to
people, animalsor property resultingfrom noncompliance with
the instructions in this manual, from modications or tampering
with the product, from installation, adjustment, maintenance
errors and from improper use. Failure to comply with what is
indicatedinthismanualalsoresultsinforfeitureofthewarranty
conditions.
1.7 SAFETY RULES
WARNING! Installation and maintenance must be carried out
exclusively by specialized and specially authorized personnel.
The connection to the power supply must be carried out in
accordance with current national plant standards.
During installation and maintenance operations, it is always
necessary to operate in conditions of maximum safety, follow
the instructions given in this manual and any warning labels
applied to the product.
Respect the installation and operating limits indicated in
this manual, never modify the internal electrical wiring and
refrigeration pipes, do not modify or disable the safety and
regulation devices.
Beforeanyinspectionormaintenanceoperation,oanythingelse
involves access to the internal of the appliance, disconnect the
general power supply.

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Cable connection
indoor unit QE
power supply
Section
2.5 mm2 x 3
4.0 mm2 x 3
4.0 mm2 x 3
Models
3.0
7.8
9.0 INV.
External unit power
connection cable
Section
2.5 mm2 x 3
4.0 mm2 x 3
4.0 mm2 x 3
Switch
magnetermic
Section
16 A curv. D
20 A curv. D
20 A curv. D
Cable
C-1-2
Section
1,50 mm2 x 3
4.0 mm2 x 3
4.0 mm2 x 3
Cable
Pb3
Section
0,75 mm2 x 4
0,75 mm2 x 4
0,75 mm2 x 4
Table 1 - Cable specications HUB RADIATOR PLUS/PLUS SOLAR
2. CONNECTIONS U.E. / U.I.
2.1 GENERAL PROVISIONS
1) The HUB RADIATOR PLUS / PLUS SOLAR system is
designed to work exclusively with the indoor unit positioned
inside the building to be heated and the booster outside.
2) During the installation phase you must carefully check that the
distance and the difference in height between the 2 units
comply with the data shown in this manual.
3) Before installation, check that the wall is where you are
chosen to position the internal accumulation to be able to
withstand the weight of the accum. and the water contained in it.
4) In case of replacement of an existing generator carry out the
cleaning the system and adding a special anti-algae additive.
5) The moment you choose to install the HUB system
RADIATOR PLUS / PLUS SOLAR, the electrical absorption of
the outdoor unit must be taken into account. Then prepare all
the necessary works to adapt the electrical system (meter,
cable section, magnetothermic switches, etc.) to ensure
proper operation and a constant voltage between 220V and
240V in correspondence with the power cables of the outdoor
unit. With voltage below 220V it is mandatory to install a
voltage stabilizer capable of guaranteeing the admissible
voltages indicated above, otherwise any type of guarantee is
void.
2.2 ELECTRICAL CONNECTIONS
Connect the cable to the electrical panel:
1) The connection cable of the indoor and outdoor unit must to
be kind H07RN-F.
2) Lift up the electrical box panel and remove the screws, then
remove the cover.
3) Connect the cables according to the markings. Connect the
cable to the outdoor unit:
4) Remove the cover of the outdoor unit.
5) Connect the terminal cables according to the numbers on the
unit terminal block, respecting the sections shown in the table 1
6) Secure the cables so that they do not come into contact with
parts electric or metal.
2.3 INSTALLING THE PIPES FOR THE REFRIGERANT R410A
The main cause of refrigerant gas leaks is due to a defect in
the are. Carry out the folders correctly, respecting the following
indications:
A) Cut the pipes and the cable (Fig. 1)
- Use pipes with adequate measures for the installed unit (table 2).
- Measure the distance between the indoor and outdoor unit.
- Cut the pipes to a length slightly greater than distance
measured.
- Cut the 1.5 m electric cable. longer than the length of the tube
B) Burr removal (Fig. 2)
- Completely remove all burrs from the section cross section of
the tube.
- The processing must be performed with the end of the tube
down so that burrs do not fall into the tube.
C) Folding (Fig. 3)
Remove the nuts xed on the indoor and outdoor unit, insert them
on the pipe and perform the aring and removal of the burrs, as
previously indicated
D) Placement of the nut
Firmly x the copper pipe with a nut of the size indicated in table 3.
E) Securing the connection (Fig. 4)
Align the pipes. Sufciently tighten the nut and tighten it with two
wrenches as shown in the gure.
Precautions - Excessive torque can break the nut.
Table2 Diameter connections refrigerant R410A
___________________________________________________
Model Ø LIQUID Ø GAS
___________________________________________________
3.0 1/4” 3/8”
___________________________________________________
7.8 1/4” 5/8”
___________________________________________________
9.0 INV 3/8” 5/8”
___________________________________________________
Pipe cutting Fig. 1
Burr removal Fig. 2
Folding Fig. 3
Fixing Fig. 4
Table3 - Tightening torque
___________________________________________________
Diameter Tightening torque (N / m)
___________________________________________________
Ø 3/8 42
___________________________________________________
Ø 5/8 65
___________________________________________________
Ø 1/4 18
___________________________________________________

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(C) MAXIMUM PIPE LENGTH
(D) MAXIMUM DIFFERENCE IN HEIGHT (between U.E and U.I.)
(E) ADDITIONAL REFRIGERANT AMOUNT (over 5 m)
conguration the effective length of the pipes is 6 m horizontally
and 4 m vertically, in total 10 m. We will then add 100 grams of
R410a refrigerant gas or 5 m x 20 g / m = 100 grams.
Example C - D - E
of table 4
4 m
6 m
WARNING!
In g. 5 we report an example of an inadmissible application,
with a distance of 10 meters but with a difference in height of> 5
meters.
Fig. 5
6 m
4 m
Table 4 - Admissible distances U.I. - U.E.
5*m
3*m
15*m
5*m
20*g/m
HR 3.0
5*m
3*m
15*m
5*m
20*g/m
HR 7.8
5*m
3*m
15*m
5*m
20*g/m
HR 9.0
INV Models
Maximum length allowed
without adding refrigerant
Minimum allowed length
of refrigerant gas
Maximum length of refrigerant
gas piping
Maximum admissible height
difference between U.E and U.I.
U.I. Additional refrigerant
quantity over 5 meters
A
B
C
D
E
Failure to comply with this application will result in the
non-ignition by the authorized assistance
(A) INSTALLATION WITHIN 5 METERS
Example of installation without additional gas rell R410a
refrigerant, distance 4 meters.
2 m
0,5 m
1,5 m
Example A
table 4
(B) INSTALLATION WITH MINIMUM PERMISSIBLE LENGTH
The distance between the Indoor Unit and Outdoor Unit is less
than 3 meters (as in this case where the length of the pipes does
not exceed 2 meters), the pipes must be cut to 3 meters and
rolled up the nal part in correspondence with the outdoor unit.
Spiral length 1 meter
0,5 m
1,5 m
Example B
table 4

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3. OUTDOOR UNIT INSTALLATION
3.1 GENERAL INDICATIONS
When choosing the installation position, carefully observe the
following indications:
- Make sure that the difference in height between the U.I./U.E.
OUTSIDE is not greater than 5.0 m.
- The appliance must be installed so that the inuences
of adjacent structures and / or the effects of particular climatic
conditions (snow, wind, etc.), do not compromise the
functioning of the product and / or the safety of people and
goods.
- Make sure that the space in the back of the unit is
greater than 30 cm. The front must have more than 60 cm.
of space.
- Make sure there are no obstacles to free movement of the air
through the heat exchangers:
A) do not place plants or animals directly close to the air ow;
B) avoid installation in corners where dust, leaves and anything
else usually can reduce the efciency of the
exchangers by obstructing the passage of air (Fig 6).
Fig. 6
- Avoid installation in bottlenecks and small shafts as acoustic
reverberations could be favored. Inquire about any limits in
noise emissions provided for the area of the municipal area
where the appliance is installed. In case of doubt, it is advisable
to consult an acoustic technician in advance, qualied for an
impact assessment, in order to prevent complaints from third
parties.
- Prevent the air expelled from the fans from penetrating through
adjacent doors and / or windows, causing situations disturbing
people.
- Install the outdoor unit on a rigid base equipped with
appropriate anti-vibration bearings to avoid the increase of
vibrations and noise, so as not to disturb neighbors (Fig.7).
Fig. 7
- Position the air outlet so that the ow is not hindered in any
way. In the case of strong wind, make sure that the fan works
correctly, positioning the unit longitudinally, along a wall or
using a shield.
- If the appliance is to be suspended from an external wall, the
substrate must comply with the techn. specications. The wall
where the unit must be installed, it must be brick or material of
similar consistency,otherwise it must be reinforced.The
support brackets must be stable, resistant and with an
adequate degree of protection against corrosion.
WARNING! Make sure of the load-bearing capacity of the
part on which the shelves are placed and of the anchoring
system to the wall itself, according to the weight of the
appliance to be installed.
- Do not install the appliance near heat sources and / or re risk
areas.
- Installation in areas with a highly corrosive atmosphere not is
allowed; in particular climatic conditions such as near the sea,
it is mandatory to provide a shorter life span of the product and
in any case a more frequent and accurate maintenance.
- In the outdoor unit, from which the water of condensation,
provide for a suitable drainage and / or channeling of the
same, in order to avoid dangerous situations due, for example,
to the formation of ice on passage areas.
- The outdoor unit is designed to be installed outdoors and
it does not require a special base, however it must be safely
positioned on a horizontal support surface with adequate
load-bearing capacity and equipped with special anti-vibration
rubber pads.
3.2 CLEARANCE DISTANCES OUTDOOR UNIT (Fig. 8)
Respect the minimum spaces, in order to allow correct operation
and all installation and maintenance operations.
Fig. 8
view from top
side view
A E
D
C
A
B
LEGENDA:
(A = 15 cm) (B = 50 cm) (C = 15 cm)
(D = 60 cm) (E = 100 cm)

8
3.3 ROOF INSTALLATION
- If the outdoor unit is installed on a roof, be sure to level the
unit. Make sure that the roof structure is appropriate for
mounting the unit.
- Consult your local codes regarding mounting on the roof.
- If the outdoor unit is installed on the roof or external walls, this
could cause excessive noise and vibration and be classied as
an unsuitable installation for service.
3.4 ELIMINATION OF AIR WITH THE VACUUM PUMP (Fig 9)
The air and humidity in the refrigeration system can cause
unwanted effects as indicated below:
- Increased pressure in the system.
- Increase in absorbed current.
- Decrease in the efciency of the refrigerant.
- Freezing and obstruction of the capillary pipes.
- Corrosion of parts of the refrigeration system.
In order to avoid the above, the indoor assembly and the pipes,
placed between the indoor and outdoor assemblies, must be
tested for leaks and purged to remove non-condensing elements
and moisture from the system.
Check that each pipe (both the gas and liquid side pipes) between
the internal and external groups has been connected correctly
and that all the wiring required for testing has been carried out.
- Remove the valve cap on the outdoor assembly.
- Make sure that at this point both gas valves and liquid remain
closed.
- Check the length of the tube and relative quantity of the
refrigerant, for a correct charge, check the superheat value.
The values in the table are indicative.
When changing the location of the unit, bleed with the vacuum
pump.
Make sure that the refrigerant inside the air conditioner is
always in a liquid state.
Fig. 9
The outdoor unit is supplied with a charge of R410A refrigerant
gas suitable for ensuring proper operation up to a maximum
distance of 5 meters from the indoor unit.
If you decide to install the 2 units at a distance greater than
5 meters, make sure to add 20 g of refrigerant gas for each
additional meter of piping (Tab. 4).
For example, if there are 7 meters of piping between the outdoor
and indoor units, add 40 g of R410A gas.
In any case, never exceed 15 meters.
Add only after vacuuming the pipes connecting the 2 units,
as illustrated in chapter 3.4, after which you can proceed with
opening the gas taps, mounted on the machine.
3.5 EVACUATION
Connect the end of the charging hose to the vacuum pump to
evacuate the air from the pipes of the indoor unit.
Check that the “LO” knob of the pressure gauge valve is open.
Then run the vacuum pump.
The running time varies depending on the length of the pipes and
the capacity of the pump.
When the desired vacuum is reached, close the “LO” knob of the
pressure gauge valve and stop the vacuum pump.
Finally, using a service valve wrench, turn the gas side valve
stem counterclockwise to fully open.
Loosen the charging hose connected to the gas side service port
to relieve the pressure, then remove the hose.
Replace the gas valve and service plug cover nut and tighten
securely with an adjustable wrench.
This procedure is very important to avoid system leaks
Replace the service valve caps on both the gas and liquid side
and tighten well.
This completes the air purge procedure with the vacuum pump,
make sure that all pipes are connected correctly and that the
service valves on the gas and liquid sides are completely open.
3.6 PUMP DOWN
This procedure is carried out when the unit needs to be moved or
assistance is carried out on the refrigerant circuit.
Emptying allows all the refrigerant to be collected in the outdoor
unit without leaks.
3.7 RECOVERY PROCEDURE
- Connect a low pressure gauge with a hose to the gas valve
service socket.
- Half open the gas valve and empty the air from the pipeline
pressure gauge using refrigerant gas.
- Close the liquid valve completely.
- Turn on the machine in cooling mode.
- When the pressure of the manometer goes between 0 and
0.5 kg / cm 2G (between 14.2 and 7.1 P.S.G.I)
close the gas valve completely and quickly switch off the air
conditioner.
Complete recovery of the refrigerant from the outdoor unit was
thus carried out.
WARNING! Be sure to perform the ushing procedure with
the group in COLD MODE.

9
4.2 DIMENSIONS AND TECHNICAL CHARACTERISTICS OF OUTDOOR UNITS
4.1 DIMENSIONS AND TECHNICAL CHARACTERISTICS OF THE INDOOR UNIT HUB RADIATOR PLUS / PLUS SOLAR
H
LP
Models indoor units
HUB RADIATOR PLUS 250
HUB RADIATOR PLUS 400
L
mm
762
762
H
mm
1740
2240
P
mm
670
670
1 High temperature system return (M 1”)
2 Low temperature system delivery (M 1”)
3 Domestic hot water delivery (M 1/2”)
4 Refrigerant circuit HR Booster gas line 2
(5/8” Booster 7.8 / 9.0 - 3/8” Booster 3.0)
5 Refrigerant circuit HR Booster liquid line 2
(1/4” Booster 3.0 / 7.8 - 3/8” Booster 9.0)
6 High temperature system delivery (M 1 “)
7 Low temperature system return (M 1”)
8 Water mains inlet (M 1/2”)
9 Booster HR gas line refrigeration circuit 1
(5/8” Booster 7.8 / 9.0 - 3/8” Booster 3.0)
10 Liquid line Booster HR refrigerant circuit 1
(1/4” Booster 3.0 / 7.8 - 3/8” Booster 9.0)
11 Forced circulation solar thermal collector delivery (M 3/4”)
12 Forced circulation solar thermal collector return (M 3/4”)
11
12
367 48910 5
1
2
Booster outdoor HR 3.0 - 7.8 Booster outdoor HR 9.0 INVERTER
P
I
II
L
H
Models outdoor unit
Booster HR 3.0
Booster HR 7.8
L
mm
700
902
H
mm
552
650
P
mm
256
307
I
mm
275
350
II
mm
435
620
Weight
kg
33
55
Models outdoor unit
Booster HR 9.0 inverter
L
mm
925
H
mm
785
P
mm
380
I
mm
358
II
mm
540
Weight
kg
62
P
I
H
II
L
4. SECTION A - INDOOR UNIT / OUTDOOR UNIT
TECHNICAL AND CONSTRUCTION FEATURES
HUB RADIATOR PLUS 250 - 400 SOLAR

10
Main components
1 High temperature system return (M 1”)
2 Low temperature system delivery (M 1”)
3 Domestic hot water delivery (M 1/2”)
4 Refrigerant circuit HR Booster gas line 2
(5/8” Booster 7.8 / 9.0 - 3/8” Booster 3.0)
5 Refrigerant circuit HR Booster liquid line 2
(1/4” Booster 3.0 / 7.8 - 3/8” Booster 9.0)
6 High temperature system delivery (M 1 “)
7 Low temperature system return (M 1”)
8 Water mains inlet (M 1/2 ”)
9 Booster gas line HR refrigeration circuit 1
(5/8” Booster 7.8 / 9.0 - 3/8” Booster 3.0)
10 Liquid line Booster HR refrigerant circuit 1
(1/4” Booster 3.0 / 7.8 - 3/8” Booster 9.0)
11 Solar thermal collector delivery with forced circulation (M 3/4”)
12 Solar thermal collector return with forced circulation (M 3/4”)
13 System technical water pressure gauge
14 System lling cock
15 Automatic jolly valve for system air vent
16 Additional heat generator water delivery
17 Additional heat generator water return
18 8 liter system expansion vessel
19 8 liter solar expansion vessel (optional)
20 Integrative electric heater 2 kW
21 Zone 1 system circulator
22 Zone 2 system circulator (optional)
23 Mix valve for radiant system (optional)
24 System safety valve 3 bar
25 UNIT 2 PLUS solar station (optional)
26 CONTROL MULTI 06 S solar control unit (optional)
27 System drain cock
28 Digital Booster 1 control unit
29 Booster 2 digital control unit
30 Integrative electric heater ON-OFF switch
31 EMERGENCY / INTEGRATION diverter integrative electrical
resistance
32 System circulator/s ON-OFF switch
33 Solar control unit ON-OFF switch (optional)
4.3 INDOOR UNIT HUB RADIATOR PLUS / PLUS SOLAR
1
34
5
8
9
10
11
12 17 16
15
2
6
7
11 13 7621
14
12
28
30
25
26
20
27
19
18
21
22
24
23
18
31
32
33
29
28
30
31
32
33
29
26

11
4.4 PERFORMANCE CHARACTERISTICS OF THE OUTDOOR UNIT BOOSTER HR 3.0
BOOSTER HR 3.0 - THERMAL POWER DELIVERED
Thermal power delivered kW
Heating water delivery temperature °C
30
1,96
2,.02
2,08
2,14
2,20
2,27
2,33
2,40
2,47
2,54
2,61
2,69
2,76
2,84
2,92
3,01
3,09
3,18
3,27
3,36
3,45
3,55
3,64
3,75
3,85
3,95
Ta (°C)
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
1,93
1,99
2,05
2,11
2,18
2,24
2,31
2,37
2,44
2,51
2,58
2,65
2,71
2,80
2,87
2,95
3,03
3,11
3,20
3,28
3,37
3,46
3,59
3,64
3,74
3,83
40
1,88
1,94
2,01
2,07
2,13
2,20
2,26
2,33
2,39
2,46
2,53
2,60
2,67
2,74
2,82
2,89
2,97
3,05
3,12
3,20
3,29
3,37
3,45
3,54
3,63
3,72
45
1,80
1,86
1,93
1,99
2,06
2,13
2,19
2,26
2,33
2,40
2,47
2,54
2,61
2,68
2,75
2,82
2,90
2,97
3,05
3,12
3,20
3,28
3,36
3,44
3,52
3,60
50
1,67
1,74
1,81
1,88
1,96
2,03
2,10
2,17
2,24
2,31
2,38
2,45
2,52
2,59
2,66
2,73
2,81
2,88
2,95
3,03
3,10
3,18
3,25
3,33
3,41
3,48
55
1,51
1,58
1,66
1,74
1,81
1,89
1,96
2,04
2,11
2,18
2,26
2,33
2,40
2,47
2,55
2,62
2,69
2,77
2,84
2,91
2,98
3,06
3,13
3,20
3,28
3,35
BOOSTER HR 3.0
C.O.P. THERMAL POWER / ABSORBED POWER
Heating water delivery temperature °C
30
2,96
3,04
3,14
3,23
3,32
3,42
3,52
3,63
3,74
3,85
3,96
4,08
4,20
4,33
4,46
4,59
4,73
4,87
5,01
5,16
5,32
5,48
5,64
5,81
5,99
6,17
Ta (°C)
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
2,59
2,67
2,75
2,81
2,92
3,01
3,10
3,19
3,28
3,37
3,48
3,57
3,67
3,78
3,88
4,00
4,11
4,20
4,35
4,47
4,60
4,73
4,86
5,00
5,15
5,29
40
2,25
2,32
2,39
2,47
2,54
2,62
2,70
2,78
2,86
2,94
3,02
3,11
3,20
3,29
3,38
3,47
3,57
3,66
3,76
3,86
3,97
4,08
4,19
4,30
4,42
4,54
45
1,91
1,98
2,05
2,11
2,19
2,26
2,33
2,40
2,47
2,54
2,67
2,69
2,76
2,84
2,92
3,00
3,08
3,16
3,24
3,33
3,42
3,51
3,60
3,69
3,78
3,88
50
1,59
1,65
1,71
1,78
1,84
1,91
1,97
2,04
2,10
2,17
2,23
2,30
2,37
2,43
2,50
2,57
2,64
2,71
2,78
2,85
2,92
3,00
3,07
3,15
3,23
3,31
55
1,27
1,33
1,39
1,46
1,52
1,58
1,64
1,70
1,76
1,82
1,88
1,94
2,00
2,06
2,12
2,18
2,24
2,30
2,36
2,42
2,48
2,54
2,61
2,67
2,74
2,80
BOOSTER HR 3.0
ABSORBED ELECTRICAL POWER kW
Heating water delivery temperature °C
30
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,66
0,65
0,65
0,65
0,65
0,65
0,65
0,65
0,65
0,64
0,64
0,64
Ta (°C)
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
0,75
0,75
0,75
0,75
0,75
0,75
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,74
0,73
0,73
0,73
0,73
0,73
0,73
0,72
40
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,84
0,83
0,83
0,83
0,83
0,83
0,83
0,83
0,83
0,82
0,82
0,82
0,82
45
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,94
0,93
0,93
0,93
0,93
50
1,05
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,06
1,05
55
1,19
1,19
1,19
1,19
1,19
1,19
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20
1,20

12
4.5 PERFORMANCE CHARACTERISTICS OF THE OUTDOOR UNIT BOOSTER HR 7.8
BOOSTER HR 7.8 - THERMAL POWER DELIVERED
Thermal power delivered kW
Heating water delivery temperature °C
30
5,12
5,27
5,43
5,58
5,75
5,91
6,09
6,26
6,44
6,63
6,82
7,01
7,21
7,42
7,63
7,84
8,06
8,29
8,52
8,76
9,00
9,25
9,51
9,77
10,04
10,32
Ta (°C)
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
5,05
5,20
5,36
5,52
5,68
5,85
6,02
6,19
6,36
6,54
6,73
6,91
7,10
7,30
7,50
7,70
7,91
8,12
8,34
8,56
8,79
9,02
8,86
9,50
9,75
10,00
40
4,91
5,07
5,23
5,40
5,56
5,73
5,90
6,07
6,25
6,43
6,61
6,79
6,97
7,16
7,35
7,55
7,75
7,95
8,15
8,36
8,57
8,79
9,01
9,24
9,47
9,70
45
4,69
4,86
5,03
5,20
5,37
5,55
5,72
5,90
6,08
6,26
6,44
6,62
6,80
6,99
7,17
7,36
7,56
7,75
7,95
8,15
8,35
8,55
8,76
8,97
9,19
9,40
50
4,36
4,55
4,73
4,92
5,10
5,28
5,47
5,65
5,83
6,02
6,20
6,39
6,57
6,76
6,94
7,13
7,32
7,51
7,70
7,90
8,09
8,29
8,49
8,69
8,89
9,09
55
3,93
4,13
4,33
4,53
4,73
4,92
5,12
5,31
5,50
5,70
5,89
6,08
6,27
6,46
6,65
6,84
7,03
7,22
7,41
7,60
7,79
7,98
8,17
8,36
8,56
8,75
BOOSTER HR 7.8
C.O.P. THERMAL POWER / ABSORBED POWER
Heating water delivery temperature °C
30
2,87
2,96
3,05
3,14
3,23
3,32
3,42
3,53
3,63
3,74
3,85
3,96
4,08
4,20
4,33
4,46
5,59
4,73
4,87
5,02
5,17
5,32
5,48
5,65
5,82
5,99
Ta (°C)
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
2,52
2,60
2,68
2,76
2,84
2,92
3,01
3,09
3,18
3,28
3,37
3,47
3,62
3,67
3,77
3,88
3,99
4,14
4,22
4,34
4,47
4,59
4,47
4,86
5,00
5,14
40
2,18
2,25
2,33
2,40
2,47
2,55
2,62
2,70
2,78
2,86
2,94
3,02
3,10
3,19
3,28
3,37
3,46
3,56
3,65
3,75
3,86
3,96
4,07
4,18
4,29
4,41
45
1,91
1,98
2,05
2,05
2,19
2,26
2,33
2,40
2,47
2,54
2,53
2,69
2,68
2,84
2,92
3,00
3,08
3,07
3,24
3,33
3,42
3,51
3,49
3,69
3,78
3,88
50
1,54
1,60
1,67
1,73
1,79
1,85
1,92
1,98
2,04
2,11
2,17
2,23
2,30
2,36
2,43
2,49
2,56
2,63
2,70
2,77
2,84
2,91
2,98
3,06
3,14
3,21
55
1,23
1,29
1,35
1,41
1,47
1,53
1,59
1,65
1,71
1,77
1,82
1,88
1,94
2,00
2,06
2,11
2,17
2,23
2,29
2,35
2,41
2,47
2,53
2,60
2,66
2,72
BOOSTER HR 7.8
ABSORBED ELECTRICAL POWER kW
Heating water delivery temperature °C
30
1,78
1,78
1,78
1,78
1,78
1,78
1,78
1,78
1,77
1,77
1,77
1,77
1,77
1,76
1,76
1,76
1,76
1,75
1,75
1,75
1,74
1,74
1,73
1,73
1,73
1,72
Ta (°C)
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
2,00
2,00
2,00
2,00
2,00
2,00
2,00
2,00
2,00
2,00
2,00
1,99
1,99
1,99
1,99
1,98
1,98
1,98
1,98
1,97
1,97
1,96
1,95
1,95
1,95
1,95
40
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,25
2,24
2,24
2,24
2,24
2,23
2,23
2,23
2,22
2,22
2,22
2,21
2,21
2,20
45
2,52
2,53
2,53
2,53
2,53
2,53
2,53
2,53
2,54
2,54
2,54
2,53
2,53
2,53
2,53
2,53
2,53
2,52
2,52
2,52
2,52
2,51
2,51
2,50
2,50
2,49
50
2,83
2,84
2,84
2,84
2,85
2,85
2,85
2,86
2,86
2,86
2,86
2,86
2,86
2,86
2,86
2,86
2,86
2,86
2,85
2,85
2,85
2,85
2,84
2,84
2,83
2,83
55
3,19
3,19
3,20
3,20
3,21
3,21
3,22
3,22
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,23
3,22
3,22
3,22
3,21

13
4.6 PERFORMANCE CHARACTERISTICS OF THE OUTDOOR UNIT BOOSTER HR 9.0 INVERTER
BOOSTER HR 9.0 INVERTER
ABSORBED ELECTRICAL POWER kW
Heating water delivery temperature °C
30
2,02
1,98
1,88
1,78
1,63
1,40
Ta (°C)
- 10
- 7
- 2
2
7
12
35
2,25
2,21
2,12
2,02
1,89
1,64
40
2,51
2,47
2,39
2,29
2,13
1,90
45
2,80
2,27
2,68
2,59
2,39
2,19
50
3,12
3,09
3,00
2,91
2,73
2,50
55
3,47
3,43
3,34
3,24
3,09
2,82
BOOSTER HR 9.0 INVERTER
C.O.P. THERMAL POWER / ABSORBED POWER
Heating water delivery temperature °C
30
2,89
3,15
3,64
4,12
4,91
6,30
Ta (°C)
- 10
- 7
- 2
2
7
12
35
2,58
2,81
3,22
3,62
4,24
5,38
40
2,31
2,50
2,84
3,18
3,76
4,61
45
2,04
2,20
2,49
2,76
3,31
3,93
50
1,75
1,89
2,13
2,36
2,76
3,31
55
1,44
1,55
1,75
1,94
2,23
2,71
BOOSTER HR 9.0 INV. - THERMAL POWER DELIVERED
Thermal power delivered kW
Heating water delivery temperature °C
30
5,84
6,23
6,84
7,34
8,03
8,84
Ta (°C)
- 10
- 7
- 2
2
7
12
35
5,81
6,19
6,81
7,31
8,01
8,82
40
5,79
6,17
6,78
7,28
8,02
8,78
45
5,71
6,08
6,67
7,15
7,92
8,62
50
5,47
5,82
6,39
6,85
7,54
8,27
55
4,98
5,31
5,84
6,28
6,89
7,63

14
HR 7.8
8,12
1,96
4,14
7,75
2,52
3,07
6,73
2,00
3,37
6,44
2,54
2,53
5,52
2,00
2,76
5,20
2,53
2,05
3,71
150,30
1
1
Reverse cycle with immersion condenser
R410A
+30 / +58
2,0
3
5
15
5
5/8”
1/4”
68,4
54,7
230V/1/50Hz
2,53
11,57
55
4.7 TECHNICAL DATA TABLE BOOSTER HUB RADIATOR PLUS / PLUS SOLAR HR 9.0 INVERTER
3,54 / 8,01 / 8,81*
1,89
4,24
2,85 / 7,92 / 8,71*
2,39
3,31
2,54 / 7,04 / 7,74*
2,15
3,52
2,46 / 6,82 / 7,50*
2,74
2,68
2,31 / 6,41 / 7,05*
2,31
3,04
2,25 / 6,25 / 6,88*
2,78
3,39
3,94
159,62
A++ / A+++
Twin Rotary DC INV.
2,2
5/8”
3/8”
64,0
32,8
-20 / +46
4,70
20,40
62
HR 3.0
3,11
0,74
4,20
2,97
0,94
3,16
2,58
0,74
3,48
2,47
0,94
2,67
2,11
0,75
2,81
1,99
0,94
2,11
3,78
153,10
1,1
3/8”
1/4”
65,1
51,2
0,94
4,30
33
U.M.
kW
kW
W/W
kW
kW
W/W
kW
kW
W/W
kW
kW
W/W
kW
kW
W/W
kW
kW
W/W
W/W
%
n.
n.
°C
kg
m
m
m
m
dB(A)
dB(A)
°C
kW
A
Kg
DESCRIPTION
Thermal power (1)
Absorbed power (1)
C.O.P. (1)
Thermal power (2)
Absorbed power (2)
C.O.P. (2)
Thermal power (3)
Absorbed power (3)
C.O.P. (3)
Thermal power (4)
Absorbed power (4)
C.O.P. (4)
Thermal power (5)
Absorbed power (5)
C.O.P. (5)
Thermal power (6)
Absorbed power (6)
C.O.P. (6)
SCOP (7)
Seasonal heating efciency (ηs)
Energy efciency class (8)
Type of compressor
Compressors
Refrigerant circuits
Defrost method
Type of refrigerant
Temperature technical water min/max
Amount of refrigerant (pre-inserted)
Min distance between outdoor and indoor unit
Max dist. betw. outdoor/indoor unit without recharging
Max distance between outdoor/indoor unit with recharge
Max diff. in height between outdoor/indoor unit
Refrigerant gas line connection R410A
Coolant line connection R410A
Sound power (9)
Sound pressure 1 m (10)
External temperature operating limits
Power supply
Max absorbed power
Max absorbed
Weight
-15 / +45
(1) Heating: outside air temperature
7 °C b.d. - 6 °C b.w.; inlet / outlet water temperature30/35 °C
(2) Heating: outside air temperature
7 °C b.d. - 6 °C b.w.; inlet / outlet water temperature 40/45 °C
(3) Heating: outside air temperature
0 °C b.d.; water temperature inlet/outlet 30/35 °C
(4) Heating: outside air temperature
0 °C b.d.; water temperature inlet/outlet 40/45 °C
(5) Heating: outside air temperature
-7 °C b.d.; water temperature inlet/outlet 30/35 °C
(6) Heating: outside air temperature
-7 °C b.d.; inlet / outlet water temperature 40/45 °C
(7) Heating: condizioni climatiche medie; temperatura acqua ingresso/uscita 30/35 °C
(8) Water 35 °C / 55°C
(9) Measurements made according to UNI EN 14511
in heating mode and boundary conditions (1)
(10) Value calculated according to ISO 3744: 2010
(*) By activating the maximum HZ function
A++ / A
Rotation ON-OFF
4.8 DHW WITHDRAWAL TABLE HUB RADIATOR PLUS / PLUS SOLAR 250
DESCRIPTION
DHW withdrawal at 40 °C - storage at 55 °C - inlet water at 10 °C
DHW withdrawal at 40 °C - storage at 55 °C - inlet water at 15 °C
HP recovery time from 38 °C to 55 °C - Outdoor temp. 7 °C *
HP recovery time+resistance from 38 °C to 58 °C - External temp. 7 °C*
Water withdrawal at 40 °C with storage at 62 °C with inlet water at 10 °C
Water withdrawal at 40 °C with storage at 62 °C with inlet water at 15 °C
HP recovery time+resistance from 38 ° C to 62 °C - External temp. 7 °C*
Recovery time from 10 °C to 55 °C - Outdoor temp. 7 °C*
U.M.
l
l
min
min
l
l
min
min
HR 7.8
212
242
36
24
254
290
44
88
HR 3.0
202
218
82
54
228
262
98
226
HR 9.0 inverter
212
242
30
20
254
290
36
84
*Data calculated with the heating system off

15
8
2
2
2
2
3,15
1,8
3,3
6,2
3 - 45
1
3
2000
+20 / +55
1/2”
1”
High density extruded expanded polystyrene
4,5
230V/1/50Hz
1,58
IPX5D
4.10 ACCUMULATION UNIT TECHNICAL DATA TABLE HUB RADIATOR PLUS / PLUS SOLAR
250
252
-
-
-
184
436
8
3
4
3
3
4,54
2,6
400
404
-
-
-
222
626
250 SOLAR
243
3/4”
1,6
1,2
188
440
400 SOLAR
395
3/4”
2,0
1,7
226
621
U.M.
l
m3/h
m
W
l
n.
bar
bar
W
n.
n.
n.
°C
m2
Pa
m2
Pa
cm
kWh /24h
kg
kg
DESCRIPTION
Technical storage water content
Max ow rate electronic inverter circulator
Max head electronic inverter circulator
Electric absorption electronic circulator inverter
System expansion vessel volume
Number of system expansion vessels
Expansion vessel preload
Safety valve calibration
Electrical resistance of back up
Max number of HR 3.0 boosters that can be combined
Max number of HR 7.8 boosters that can be combined
Max numb. HR 8.0 inverter boosters to be combined
Water temperature min / max
Cold water inlet and DHW outlet hydraulic connections
System delivery and return hydraulic connections
DHW exchanger surface in copper
Solar ow and return hydraulic connections
Pressure drop in domestic hot water exchanger in copper
Solar exchanger surface in copper
Pressure drop in copper solar exchanger
Type of insulation
Insulation thickness
Power supply
Internal unit accumulation heat loss
Degree of protection
Shipping weight
Operating weight
4.9 DHW WITHDRAWAL TABLE HUB RADIATOR PLUS / PLUS SOLAR 400
DESCRIPTION
DHW withdrawal at 40 °C - storage at 55 °C - inlet water at 10 °C
DHW withdrawal at 40 °C - storage at 55 °C - inlet water at 15 °C
HP recovery time from 38 °C to 55 °C - Outdoor temp. 7 °C *
HP recovery time+resistance from 38 °C to 58 °C - External temp. 7 °C*
Water withdrawal at 40 °C with storage at 62 °C with inlet water at 10 °C
Water withdrawal at 40 °C with storage at 62 °C with inlet water at 15 °C
HP recovery time+resistance from 38 ° C to 62 °C - External temp. 7 °C*
Recovery time from 10 °C to 55 °C - Outdoor temp. 7 °C*
U.M.
l
l
min
min
l
l
min
min
HR 7.8
348
396
58
38
416
474
70
140
HR 3.0
332
358
134
88
374
430
156
362
HR 9.0 inverter
348
398
48
32
418
476
58
134
*Data calculated with the heating system off
4.11 ACCESSORIES HUB RADIATOR PLUS / PLUS SOLAR
REMOTE CONTROL AND COMMAND PANEL
LOAD CONTROL RELAY FOR MANAGING THE
ABSORBED POWER
ADDITIONAL LOW TEMPERATURE SYSTEM PUMP
KIT WITH CLIMATIC MIXING
MIXING VALVE FOR RADIANT SYSTEMS FOR MOD.
WITH FIXED AND MOTORIZED ADJUSTMENT

16
ANCHORING BRACKET FOR INCLINED ROOF FOR
EXTERNAL BOOSTERS MOD. HR 3.0 - 7.8 - 9.0
INCLUDING RUBBER ANTIVIBRATION
ANCHORING SHELF
FOR EXTERNAL BOOSTER
RUBBER ANTIVIBRATION MOUNTS INCLUDED
ANTI-VIBRATION FLOOR BASE IN VULCANIZED
RUBBER (HEIGHT FROM THE GROUND MM 95) WITH
LEVEL AND SCREWS FOR BOOSTER HR 3.0 - 7.8 - 9.0
ANTI-VIBRATION KIT FOR INSTALLATION ON SHELVES
STAINLESS STEEL SPRING ANTIVIBRATION KIT
COMPLETE WITH BOLTS - WASHERS - NUTS
ADDITIONAL CONDENSER FOR BOOSTER HR
ONLY HOT
1/2” DHW MIXING VALVE KIT
AUXILIARY BASIN FOR INSTALLATION UNDER
SHELF EQUIPPED WITH 90 W HEATING CABLE
CONDENSATE ANTIFREEZE HEATING CABLE WITH
THERMAL SENSOR, FACTORY FITTED
FLOOR SUPPORT COMPLETE WITH AUXILIARY
BASIN EQUIPPED WITH 90 W HEATING CABLE
FACTORY MADE HYBRID SYSTEM ELECTRONIC
MANAGEMENT KIT WITH CONNECTION SLEEVES
FOR ADDITIONAL THERMAL GENERATOR
FLEXIBLE ANTI-VIBRATION JOINT KIT WITH FITTING
FOLDER AND STRAIGHT UNION
FLEXIBLE ANTI-VIBRATION JOINT KIT WITH FITTING
BRACKET AND 90° CURVED UNION
OPEN SHELF FOR N. 2 OUTDOOR UNITS BOOSTER
MOD. HR 7.8 - 9.0 COMPLETE WITH ANTIVIBRATION
RACK 2 CABINET N. 2 OUTDOOR UNITS BOOSTER
MOD. HR 3.0 - 7.8 - 9.0

17
5 - SECTION B
DIGITAL CONTROL UNIT
HUB RADIATOR PLUS 250 - 400 SOLAR
DIGITAL CONTROL UNIT
5.1 DISPLAY
Information available on the display:
- Primary display (red color): display congurable
from parameter CF36 (PB1, PB2, PB4, Set-point
(parameter value) *, Set-point real *, Hysteresis,
Machine status**);
- Secondary display (yellow color)
display congurable from parameter CF4
(PB1, PB2, PB3, PB4, Set-point (by parameter)*,
Real set-point* Hysteresis, RTC, Machine status**);
* the display shows the chiller set when th unit is switched on
in chiller mode, the heat pump set when the unit is turned on
in heat pump mode, OFF with unit in stand by;
** the display shows OnC when the unit is turned on in chiller
mode, OnH when the unit is switched on in heat pump OFF
mode with unit in stand by.
5.2 ICON DISPLAY
°C -°F
BAR-PSI
Lit when the display
displays a temperature
or pressure
Lit when the lower display
displays the current time, the hours of
operation of loads, etc.
Flashing
on when alarm
On if an automatic Set-point modication
function is active (Dynamic set point,
function for machines without accumulation,
Energy Saving); if the function is enabled
but not active the icon is off
Lit during access
to the functions menu
On if the resistances are
on (antifreeze heaters, boiler)
On ashing during the interval count
between defrosts; the icon is steady
on during the phase
defrost
Flashing on if the entrance
digital ow switch is active
(both with pump ON and with pump OFF)
On if at least one of the 2 water pumps
(evaporator pump or pump
capacitor) is on
On if the fans
are on
On if the relative compressor is
switched on; is ashing if the compressor
is in ignition timing
On if the exit
open collector is active
On if the machine is on e
represents the operating status
Heat or Cool according to logic
set in parameter CF31
The HP icon and the LP icon are on
ashing in the event of a High alarm
o Low pressure active.
5.3 KEY FUNCTION
___________________________________________________
FUNCTION KEY
Pressure and release
in main view:
allows viewing of the chiller
set point (SetC label)
or heat pump (SetH label).
Pressure and release 2 times in main view:
if the energy saving function, dynamic
set point or for machines without
accumulation the icon is enabled set is
on and the display displays the actual
working set.
Pressure for 3 seconds and release
in main view:
allows modication of the
point set chiller / heat pump.
Pressure and release in programming:
allows access to the change of the selected
parameter;
It allows conrmation of the set value in the
parameter modication phase.
Press and release in the AlrM menu:
allows alarm reset (if resettable) from the
AlrM menu.

18
___________________________________________________
FUNCTION KEY
Pressure and release:
from main view allows the display of the
probe values congured (temperatures /
pressure in the upper display and the
corresponding one label in the lower
display.
Pressure and release in programming:
allows scrolling of folders
parameters (ST, CF, etc);
allows it scrolling through
the list of parameters.
Pressure and release:
from main view allows
the display of the probe values congured
(temperatures / pressures) in the upper
display and the label corresponding
in the lower display.
Pressure and release:
allows you to turn on the machine
(in chiller or heat pump)
or select stand-by mode.
Pressure and release:
allows you to turn on the machine
(in chiller or heat pump)
or select stand-by mode.
Pressure and release:
allows access to the function menu.
Pressure 3 seconds and release:
allows you to adjust the clock in the
models in which it is intended. Pressure
and release in programming:
lets go out from parameter modication
Simultaneous pressure of the keys
for 3 seconds:
allows access to programming
of the parameters.
Simultaneous pressure of the keys:
1 allows exit from parameter
programming.
2 contemporary pressure prolonged
keys allows entry into manual defrost.
Regarding the use of the remote terminal (indications on the
display and meaning of the keys) do reference to the preceding
paragraphs In air / air units, in case of terminal use remote
equipped with NTC probe (VICXS610),
conguring par. CF35 = 2 the display will show the room air
temperature; this probe will be used from the controller for
temperature control. In case of controller / remote terminal failure
or error in the wiring, the lack of communication between the
instrument and the remote terminal will be signaled to display
with the error message “noL” (no link).
5.4 ACCESS TO PARAMETERS
1 Press the SET and arrow keys for a few seconds downward;
2 The icons ash and the display upper displays
“ALL” (generic group of parameters);
3 Scroll through the parameter groups with the and keys select
the group containing the parameters to access the list of
parameters contained in the group.
The lower display shows the label of the parameter and the
upper display shows the value.
5.5 DISPLAY AND MODIFY THE SET POINT
Pressing and releasing the SET key allows the display of the set
point.
The prolonged pressing of the SET key allows the its modication
1 Press the SET button for at least 3 seconds;
2 The set point will be displayed ashing;
3 To change the value, use the and keys and
4 Save the new set point by pressing the key SET or wait for
the time out time to exit from the program.
User interface
Remote terminal

19
5.6 MAIN ALARMS
Cod. Meaning Cause Action Reset
P1 Probe alarm Probe faulty Activate open output Automatic
PB1 or resistive value collector / alarm relay if the value is within
out of range Activate buzzer the expected range
Flashing icon
generic alarm
Code on display
P2 Probe alarm Probe faulty Activate open output Automatic
PB2 or resistive value collector / alarm relay if the value is within
out of range Activate buzzer the expected range
Flashing icon
generic alarm
Code on display
P3 Probe alarm Sonda guasta Activate open output Automatic
PB3 o valore resistivo collector / alarm relay if the value is within
fuori range Activate buzzer the expected range
Flashing icon
generic alarm
Code on display
P4 Probe alarm Sonda guasta Activate open output Automatic
PB4 o valore resistivo collector / alarm relay if the value is within
fuori range Activate buzzer the expected range
Flashing icon correct defrost cycle
generic alarm
Code on display
A12 Defrost End defrost for Code on display Automatic
error alarm maximum time reporting only if the value is within
the expected range
correct defrost cycle
A09 Compressor Condensation Activate open output Automatic
thermal alarm start temperature collector / alarm relay if the value is within
of 110 °C Activate buzzer the expected range
Flashing icon correct defrost cycle
generic alarm
Code on display
ALOC Low or high voltage Supply voltage Activate open output Automatic
alarm or higher less than 202 V collector / relè allarme it becomes manual after
than 256 V Attivate buzzer defrost AL20 interventions now
Flashing icon Manual
generic alarm Deactivation: entrance
Code on display digital not active
for continuous time >AL22
E01 Refrigerant refrigerant circuit Activate open output Manual
circuit high pressure higher collector / Flashing
pressure alarm than 42 bar generic alarm icon
E02 Refrigerant refrigerant circuit Activate open output Manual
circuit high pressure higher collector / Flashing
pressure alarm below 2,7 bar generic alarm icon

20
5.7 TABLE OF TROUBLESHOOTING CAUSES
Alarm Failure Meaning Cause Remedy
code
P1 Probe technical water 1) Probe interrupted 1) Technical water probe replacement
alarm PB1 Probe 2) Probe shorted 2) Control unit replacement
3) Control unit faulty
P2 Probe External 1) Probe interrupted 1) External probe replacement
alarm PB2 temperature 2) Probe shorted 2) Replacement of the external probe
probe 3) Q.E. probe connection connection cable
interrupted 3) Replacement control unit
P3 Probe External 1) Probe interrupted 1) External probe replacement
alarm PB3 temperature 2) Probe shorted 2) Replacement of the external probe
probe 3) Q.E. probe connection connection cable
interrupted 3) Replacement control unit
A09 Compressor High 1) Faulty thermostat 1) Thermostat replacement
thermal temperature 2) Exhaust Booster 2) External Booster Charging
alarm thermostat 3) Q.E. thermostat connection 3) Replacement of Q.E.
contact open thermostat connection cable
A12 Defrost End defrost 1) Lack of refrigerant gas 1) External Booster Charging
error for maximum 2) Extreme outdoor conditions 2) Change of parameters DF03 and DF04
alarm time 3) Condensate drain blocked 3) Make sure that condensation
4) PB3 probe out of range ow out regularly
4) PB3 probe replacement
ALOC Low or Power supply 1) Power supply Contact the electricity supplier
high voltage voltage below 220 V to have the exact voltage
alarm out of safety 2) Power supply values restored
range above 253 V
E01 High pressure Refrigerant gas Accumulation of Fill the accumulation
refrigerant gas pressure above drained technical water with technical water
alarm 42 bar
E02 Low pressure Gas pressure 1) Faulty evaporator fan 1) Replace the evaporator fan
alarm for below 2) Exhaust Booster 2) Charge refrigerant gas in the Booster
refrigerant 2,7 bar 3) Presence of evaporator ice 3) Oncheck defrost parameters
gas circuit