Beretta HYDRONIC UNIT B HE 5 User guide

HYDRONIC UNIT B
EN Installer manual

2
HYDRONIC UNIT B
COMPLIANCE
BHYDRONIC UNIT B heat pumps are compliant with the following European Directives:
• Electromagnetic Compatibility Directive 2004/108 / EC and subsequent changes
• Machinery Directive 2006/42 / CE and subsequent changes
• ErP Directive 2009/125/EC and Regulation (EU) 813/2013
• RoHS Directive 2011/65/EU
• F-Gas Regulation 2014/517/EU
• WEEE Directive 2012/19/EU
RANGE
Model Code
HYDRONIC UNIT B HE 5 20161618
HYDRONIC UNIT B HE 7 20161619
HYDRONIC UNIT B HE 11 20161620
HYDRONIC UNIT B HE 15 20161621
HYDRONIC UNIT B HE 11T 20161622
HYDRONIC UNIT B HE 15T 20161623
ACCESSORIES
For the complete list of accessories and the information relating to their usage combinations, please refer to www.berettaclima.it.
Dear Technician,
We would like to congratulate you on having recommended a Bunit: a modern product that is capable of ensuring maximum comfort
at length, with a high degree of reliability, efciency, quality and safety.
While your technical skills and knowledge will certainly be more than sufcient, this booklet contains all the information that we have
deemed necessary for the device's correct and easy installation.
Thank you again, and keep up the good work.
BERETTA

HYDRONIC UNIT B
3
TABLE OF CONTENTS
This booklet cod.0098546_EN rev.0 (11/2020) consists of 69 pages.
The following symbols are used in this publication:
9
WARNING = actions requiring special care and appropri-
ate training.
0 DO NOT = actions that MUST ON NO ACCOUNT be car-
ried out.
1 GENERAL INFORMATION . . . . . . . . . . . . . . . p. 4
1.1 General Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4
1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4
1.3 Unit description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 5
1.4 Safety and adjustment devices . . . . . . . . . . . . . . . . . . . p. 5
1.5 Identication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 5
1.6 Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
1.7 Technical specications . . . . . . . . . . . . . . . . . . . . . . . . . p. 8
1.8 Performance based on the climatic zone . . . . . . . . . . . . p. 9
1.9 Operating limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 10
1.10 Available static pressure . . . . . . . . . . . . . . . . . . . . . . . p. 10
1.11 Refrigerant circuit and sensors positioning . . . . . . . . . p. 12
2 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . p. 13
2.1 Receiving the product. . . . . . . . . . . . . . . . . . . . . . . . . . p. 13
2.2 Labels positioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 13
2.3 Dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . p. 13
2.4 Handling and removal of the packing. . . . . . . . . . . . . . p. 14
2.5 Place of installation . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 14
2.6 Recommended distances. . . . . . . . . . . . . . . . . . . . . . . p. 15
2.7 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 16
2.8 Installation on old systems or systems in need of
upgrading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
p. 17
2.9 Hydraulic schemes. . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 17
2.10 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . p. 18
2.11 System water lling and drainage . . . . . . . . . . . . . . . . p. 21
2.12 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 22
2.13 Electrical connections. . . . . . . . . . . . . . . . . . . . . . . . . . p. 30
2.14 Control panel (ACCESSORY) . . . . . . . . . . . . . . . . . . . p. 35
FAULT SIGNALS DESCRIPTION . . . . . . . p. 40
PARAMETERS OVERVIEW. . . . . . . . . . . . . p. 43
Dispalying parameters . . . . . . . . . . . . . . . . . . . . . . . . . p. 43
Service parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 46
Setpoint parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . p. 49
Conguration parameters. . . . . . . . . . . . . . . . . . . . . . . p. 50
3 COMMISSIONING . . . . . . . . . . . . . . . . . . . . . . . p. 59
3.1 Preparation for rst commissioning . . . . . . . . . . . . . . . p. 59
3.2 Putting into service. . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 59
3.3 Temporary shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . p. 59
3.4 Stop for an extended period of time . . . . . . . . . . . . . . . p. 59
3.5 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 60
4 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . p. 66
4.1 Ordinary maintenance . . . . . . . . . . . . . . . . . . . . . . . . . p. 66
4.2 Tightening torque for main electrical connections . . . . p. 67
4.3 Tightening torque for main screws and nuts . . . . . . . . p. 67
4.4 Air side heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . p. 67
4.5 Plates heat exchanger maintenance . . . . . . . . . . . . . . p. 67
4.6 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 67
4.7 Refrigerant volume. . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 68

GENERAL INFORMATION
4
1 GENERAL INFORMATION
1.1 General Notices
9
When you get the product, check immediately that the contents
are all present and undamaged. Contact the dealer Bif
you notice any problems.
9
The product' s installation must be carried out by an authorised
company that will issue a declaration of the installation's con-
formity to the product's owner once the work has been com-
pleted, indicating that the work has been carried out in accord-
ance with the standards of good practice, current National and
Local regulations, and the indications provided by Bin the
instruction booklet accompanying the device.
9
The product must be used for its intended purpose, as stat-
ed by Bfor which it has been expressly manufactured.
Bshall bear no responsibility, whether of a contractual
or non-contractual nature, for any damage caused to people,
animals, or property due to incorrect installation, adjustments,
or maintenance, or improper use.
9
Suitable clothing, instrumentation, and accident-prevention
devices must be utilized during the installation and/or mainte-
nance operations. Bshall bear no responsibility for any
failure to comply with current safety and accident-prevention
regulations.
9
Comply with the legislation in force on the country of deploy-
ment with regard to the use and disposal of packaging, of
cleaning and maintenance products and for the management
of the unit's decommissioning.
9
Any repair and maintenance interventions must be carried out
by BTechnical Support Service, in accordance with the
provisions contained in this publication. Do not modify or tam-
per with the unit as dangerous situations may arise and the
unit manufacturer will not be liable for any damage caused.
9
The non-use of the appliance for a long period entails carrying
out the operations described in the specic paragraph.
9
In the event of any functional anomalies or uid leaks, set the
system's main switch to its "off" position. Promptly contact your
local BTechnical Support Service, and do not perform
any interventions upon the device on your own.
9
The units contain refrigerant gas: operate carefully so as to
avoid damaging the gas circuit and the n bank.
9
Following the regulation EU UE n. 517/2014 on certain uori-
nated greenhouse gases, is compulsory to indicate the refrig-
erant total amount in the installed system. >This information is
indicated on the unit nameplate.
9
This unit contains uorinated greenhouse gases covered by
the Kyoto protocol. Maintenance and disposal activities must
be carried out exclusively by skilled personnel.
9
This unit can be installed in systems that require heating
cycles with anti-legionella function. It is mandatory to check
every single installation and complete it, where necessary, with
appropriate integration electric heaters in order to guarantee
the completion of the required sanitation cycles.
9
This booklet is an integral part of the device, and must there-
fore be carefully preserved, and must ALWAYS accompany it,
even in the event that it is sold to another Owner or User, or is
transferred to another system. If it is damaged or lost, another
copy can be requested to BTechnical Support Service in
your Area.
1.2 Safety precautions
We remind you that the use of products that use electricity and
water involves the observance of some fundamental safety rules
such as:
0 Do not touch the unit while barefoot and/or partially wet.
0 Do not spray or throw water directly on the unit.
0 It is strictly forbidden to touch the coil ns, the moving parts, to
place any body parts between them, or to insert pointy objects
into the grilles.
0 It is forbidden to carry out any technical or cleaning work be-
fore disconnecting the appliance from the power supply by
placing the main switch of the system and the main switch on
the "OFF".
0 It is forbidden to modify the safety or regulation devices without
the authorisation of the manufacturer.
0 Do not pull, detach or twist the electrical wires coming out of
the unit, even when the unit is disconnected from the power
grid.
0 The packing material must not be disposed of in the surround-
ing environment and must be kept out of children reach, as
it can be dangerous. It must be disposed of according to the
regulations in force.

GENERAL INFORMATION
5
1.3 Unit description
BHYDRONIC UNIT B it is a range of heat pumps for the pro-
duction of hot water for space heating, domestic hot water for do-
mestic use (in combination with suitable boilers or exchangers) and
cold water for cooling.
Designed to be placed outdoors, it is suitable for use in residential
and commercial applications.
The compressor, of the Rotary (HYDRONIC UNIT 5) or Twin-
Rotary (HYDRONIC UNIT 7-11-15) type, is regulated by the DC
Inverter control with continuous power modulation. The compres-
sor, working in combination with the electronic expansion valve, is
therefore able to guarantee maximum environmental comfort while
maintaining high energy standards.
The fans are driven by a permanent magnet synchronous motor
and are continuously modulated to obtain maximum performance
in all conditions of use, maximizing the silence of the installation.
The hydronic module is always present and is supplied with a vari-
able speed circulation pump, ow switch, safety valve and inlet and
outlet water temperature probes.
The unit can be set and controlled by the remote control REC10CH,
the interface WUI, the free potential contacts or, if available, by an
existing modbus BMS.
1.4 Safety and adjustment devices
The safety and regulation of the appliance are obtained:
• on the cooling circuit with
— refrigerant temperature sensor on the compressor discharge
— refrigerant temperature sensor on the compressor suction
• on the hydraulic circuit with
— water temperature sensors the detection of the water inlet
and outlet temperature
— ow switch to ensure unit operation with correct water ow
— safety valve with intervention pressure 300 kPa
• The installer must necessarily provide in the system:
— a suitably sized expansion vessel
— a suitably sized technical water storage tank
— a by-pass valve between the delivery and return of the ap-
pliance to allow the circulation of water in the unit even if the
same is isolated from the system. This serves to make the
antifreeze protection logics effective.
— a water lter entering the unit
— air vent valves in the highest points of the system
For further details refer to the chapter "Piping connections"
p. 20
9
Safety device replacement must be carried out by B
Technical Support Service, using only original components.
Please refer to the spare parts catalogue.
0 IT IS FORBIDDEN to operate the device with faulty safety sys-
tems.
1.5  Identication
The unit can be identied through the technical data plate:
XXXXXXXXXXX
XXX
XXX
XXX
XXX
XXX
XXX
Spain
XXXX
XXXXXXXX
XXX XX
XXXXXXXXXXX
Technical data plate
Contains the device's technical and performance data.
9
The tampering, removal, or absence of the identication plates
will not allow the product to be properly identied by its serial
number.

GENERAL INFORMATION
6
1.6 Layout
Model 5 - 7
1 Heat exchanger
2 Fan protection grille
3 Front panel
4 Compressor
5 Variable speed circulation pump
6 Electrical box
7 Flow switch
8 Circulation pump
9 Expansion vessel
10 Safety valve
11 Water inlet temperature probe
12 Pump release device
13 Water outlet temperature probe
14 Air bleeder valve
2
1
3
5
6
4
14
7
8
9
10
13
12
11
Model 11 - 15
1 Heat exchanger
2 Fan protection grille
3 Front panel
4 Compressor
5 Variable speed circulation pump
6 Reverse cycle valve
7 Electrical box
8 Flow switch
9 Expansion vessel
10 Safety valve
11 Water inlet temperature probe
12 Pump release device
13 Water outlet temperature probe
14 Air bleeder valve
2
3
1
4
5
6
7
14
8
12
9
10
13
5
11

GENERAL INFORMATION
7
Model 11T - 15T
1 Heat exchanger
2 Fan protection grille
3 Front panel
4 Compressor
5 Variable speed circulation pump
6 Reverse cycle valve
7 Electrical box
8 Flow switch
9 Expansion vessel
10 Safety valve
11 Water inlet temperature probe
12 Pump release device
13 Water outlet temperature probe
14 Air bleeder valve
2
3
1
4
5
6
7
14
8
12
9
10
13
5
11

GENERAL INFORMATION
8
1.7  Technicalspecications
Model 5 7 11 15 11T 15T
Cooling performance [A35 / W7] (1)
Nominal capacity kW 4,00 5,55 11,20 12,80 10,65 13,00
EER kW/kW 3,10 3,10 3,40 3,10 3,40 3,20
SEER kW/kW 4,85 5,75 5,15 5,00 5,40 5,25
Seasonal energy efciency (ns) % 191 227 203 197 212 208
Cooling performance [A35/W18] (2)
Nominal capacity kW 4,85 8,00 13,70 16,00 13,75 17,00
EER kW/kW 4,35 4,00 4,60 4,10 4,65 4,15
Heating performance [A7/W55] (3)
Nominal capacity kW 4,45 6,75 11,20 11,65 10,25 11,80
COP kW/kW 2,80 2,70 2,95 2,90 3,00 3,00
SCOP kW/kW 3,32 3,36 3,35 3,45 3,34 3,40
Seasonal energy efciency (ns) % 130 131 131 135 131 133
Prated kW 3,00 4,00 9,00 10,00 9,00 11,00
Seasonal energy efciency class A++
Heating performance [A7/W45] (4)
Nominal capacity kW 4,85 6,80 11,30 13,40 10,40 13,50
COP kW/kW 3,40 3,20 3,60 3,40 3,60 3,50
Heating performance [A7/W35] (5)
Nominal capacity kW 5,10 7,15 11,25 15,10 11,20 15,00
COP kW/kW 4,40 4,10 4,70 4,25 4,60 4,35
SCOP kW/kW 4,73 4,68 4,39 4,41 4,26 4,35
Seasonal energy efciency (ns) % 186 184 173 173 167 171
Electrical characteristics
Power supply V/ph/Hz+N 230/1/50 400/3/50
Permitted voltage V 220 - 240 380 - 415
Total power input (6) kW 1,80 3,38 4,73 5,18 10,32 10,32
Full load current (7) A 8,90 16,70 23,30 25,60 16,80 16,80
Compressor
Compressor Type Rotary
Minimum step % 23 20 20 17 20 17
Refrigerant Type R410A
Refrigerant charge kg 1,10 1,60 2,80 2,80 3,00 3,00
Adjustment Type Inverter modulating valve
Fan
Fan Type Axial
Quantity no. 1 1 2 2 2 2
Maximum air ow m³/h 2880 2880 6480 6480 6480 6480
Maximum speed rpm 560 660 820 820 820 820
Plant side heat exchanger
Plant side heat exchanger Type With plates
Water content l 1,7 2,3 4,4 4,4 4,4 4,4
Noise levels
Sound power level dB(A) 64 65 68 69 69 69
Sound pressure level dB(A) 33 34 37 38 38 38
Circulation pump
Type Variable speed centrifuge
Maximum operating pressure bar 3 3 3 3 3 3
Maximum power input kW 0,075 0,14
Max. current input A 0,60 0,60 1,10 1,10 1,10 1,10
(1) OAT: 35 °C, Water in/out: 12 / 7 °C
(2) OAT: 35 °C, Water in/out: 23 / 18 °C
(3) OAT: 7 °C b.s., 6 °C b.u. Water in/out: 47 / 55 °C
(4) OAT: 7 °C b.s., 6 °C b.u. Water in/out: 40 / 45 °C
(5) OAT: 7 °C b.s., 6 °C b.u. Water in/out: 30 / 35 °C
(6) Power absorbed by the compressors and fans at the limit operating conditions (i.e. with a saturated inlet temperature of 15 °C and a condensation
temperature equivalent to 68.3 °C) with a rated supply voltage of 400 V
(7) Maximum unit operating current
9
Performance are declared according to standards EN
14511:2018 and EN 14825:2016
9
The units are parameterized by default with limitation of the
maximum power delivered to 75%. It is possible to modify this
setting by acting on parameter 541 (adjustment range 50%
-100%).

GENERAL INFORMATION
9
1.8 Performance based on the climatic zone
Model 5 7 11 15 11T 15T
Temperate zone - Average temperature [47 / 55 °C]
Seasonal energy efciency (ns) % 130 131 131 135 139 133
SCOP kW/kW 3,32 3,36 3,35 3,45 3,34 3,40
Pdesignh -7 °C kW 3,09 3,83 7,69 9,11 7,69 9,81
Pdesign at +2 °C kW 1,88 2,37 5,42 5,55 5,36 5,13
Pdesignh +7 °C kW 1,21 1,42 3,66 3,63 3,63 3,99
Pdesignh +12 °C kW 1,12 0,94 4,22 4,15 4,14 4,01
Annual energy cons. kWh/annum 2170 2651 5349 6159 5358 6734
Energy class A++
Sound power level dB(A) 64 65 68 69 69 69
Cold zone - Average temperature [30 / 35 °C]
Seasonal energy efciency (ns) % 186 184 173 173 167 171
Sound power level dB(A) 64 65 68 69 69 69
SCOP kW/kW 4,73 4,68 4,39 4,41 4,26 4,35
Pdesignh -7 °C kW 3,55 4,57 8,43 9,40 8,27 9,07
Pdesign at +2 °C kW 2,16 2,72 5,39 5,28 4,97 4,97
Pdesignh +7 °C kW 1,40 1,84 3,56 3,77 2,99 3,54
Pdesignh +12 °C kW 1,30 1,12 4,11 4,26 4,17 2,79
Annual energy cons. kWh/annum 1747 2273 4469 4967 4528 4858
Energy class A+++ A++
Warm zone - Average temperature [47 / 55 °C]
Seasonal energy efciency (ns) % 163 152 164 156 178 162
SCOP kW/kW 4,15 3,87 4,17 3,98 4,51 4,13
Pdesignh -7 °C kW - - - - - -
Pdesign at +2 °C kW 3,30 3,83 7,59 7,59 9,43 10,24
Pdesignh +7 °C kW 2,15 3,36 3,42 6,12 5,39 6,18
Pdesignh +12 °C kW 1,01 1,51 4,28 3,93 4,33 10,24
Annual energy cons. kWh/annum 1055 1317 2423 2539 2780 3300
Warm zone - Low temperature [30 / 35 °C]
Seasonal energy efciency (ns) % 230 259 230 225 232 225
SCOP kW/kW 5,83 6,54 5,83 5,73 5,87 5,71
Pdesignh -7 °C kW - - - - - -
Pdesign at +2 °C kW 3,60 5,00 8,70 10,20 8,40 9,80
Pdesignh +7 °C kW 2,33 3,86 5,53 7,24 5,61 7,32
Pdesignh +12 °C kW 1,15 1,77 4,23 4,19 4,27 4,23
Annual energy cons. kWh/annum 817 1013 1983 2376 1899 2283
Cold zone - Average temperature [47 / 55 °C]
Seasonal energy efciency (ns) % 100 111 109 107 112 108
SCOP kW/kW 2,57 2,84 2,80 2,75 2,86 2,78
Pdesignh -7 °C kW 3,35 5,06 7,85 8,32 8,06 8,51
Pdesign at +2 °C kW 2,04 3,08 5,55 5,27 5,60 5,32
Pdesignh +7 °C kW 1,33 1,99 3,39 3,41 3,42 3,45
Pdesignh +12 °C kW 1,14 1,43 4,23 4,13 4,28 4,17
Annual energy cons. kWh/annum 5078 6930 10922 11771 10951 11924
Cold zone - Low temperature [30 / 35 °C]
Seasonal energy efciency (ns) % 148 153 140 138 136 135
SCOP kW/kW 3,77 3,89 3,57 3,53 3,48 3,45
Pdesignh -7 °C kW 3,65 5,57 8,42 9,18 8,65 9,33
Pdesign at +2 °C kW 2,22 3,39 5,65 5,65 5,21 5,21
Pdesignh +7 °C kW 1,44 2,18 3,40 3,58 3,43 3,62
Pdesignh +12 °C kW 1,26 1,56 4,24 4,21 4,28 4,26
Annual energy cons. kWh/annum 3769 5566 9186 10118 9665 10527
9
Performance are declared according to standards EN
14511:2018 and EN 14825:2016

GENERAL INFORMATION
10
1.9 Operating limits
COOLING
A Outdoor air temperature
B Supply water temperature
C Model 5
A (°C)
C
B (°C)
-5
0
5
10
15
20
25
30
35
40
45
50
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
HEATING
A Outdoor air temperature
B Supply water temperature
B (°C)
A (°C)
-25
-15
-5
5
15
25
35
45
15 20 25 30 35 40 45 50 55 60 65
1.10 Available static pressure
HYDRONIC UNIT B it is equipped with a variable speed circulation
pump.
For sizing the system, consider the residual head, shown below in
the graph.
MODEL 5
A Available head pressure
B Water ow
C High speed
D Medium speed
E Low speed
70
75
65
60
55
50
45
40
35
30
25
20
15
10
50 0,1 0,2 0,3 0,4
0,5
C
D
E
A (kPa)
B (l/s)

GENERAL INFORMATION
11
MODEL 7
A Available head pressure
B Water ow
C High speed
D Medium speed
E Low speed
70
75
65
60
55
50
45
40
35
30
25
20
15
10
50 0,1 0,2 0,3 0,4 0,5 0,6 0,7
C
D
E
A (kPa)
B (l/s)
MODEL 11 - 15
A Available head pressure
B Water ow
C High speed
D Medium speed
E Low speed
10 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
C
D
E
A (kPa)
B (l/s)

GENERAL INFORMATION
12
1.11 Refrigerant circuit and sensors positioning
The cooling circuit is of the heat pump type with cycle inversion on
the refrigerant gas. The source uid used is the external air while
the user uid is water possibly added with antifreeze liquid.
In winter the heat pump extracts the thermal energy from the out-
side air and transfers it to the user uid by heating it, while in sum-
mer the cycle is inverted and the thermal energy is extracted from
the water, which cools down, and is transferred to the air. external.
Depending on the type of system, the user uid is sent to fan coil
units, air treatment units, radiant panels for room air conditioning or
to the boiler for the production of domestic hot water.
1 Compressor
2 Cycle reversal valve
3 Plate heat exchanger
4 Collector
5 Electronic expansion valve
6 Condenser coil
7 Intake separator
8 Service valva
9 Electric fans
A Circulation pump
B Safety valve
C Flow switch
D Expansion vessel
E Air bleed
F Hydronic module
• Probes
to outside air temperature
tl higher nned coil temperature
te lower nned coil temperature
td gas delivery temperature
ts suction temperature
TR coolant temperature
LWT water delivery temperature
EWT return water temperature
(1) Only model 11 - 15
(2) P024 and P027 only model 11 - 15

INSTALLATION
13
2 INSTALLATION
2.1 Receiving the product
BHYDRONIC UNIT B it is supplied in a single package, posi-
tioned on a wooden pallet and protected by cardboard packaging,
polystyrene panels and a polyethylene lm.
The following material is attached to the canopy:
Document envelope:
— Instruction's book for the installer and for the Technical
Service in Italian
— Instruction's book for the installer and for the Technical
Service in English
— Warranty/Spare parts labels.
— dimensional drawing
— graphite rings to ensure EMC standards (see chapter
"Electrical connections"
p. 30 )
— fairleads
— fairleads
— condensate drain connection
9
The Instruction book comes with the equipment and it should
be taken, read and kept carefully.
9
The document envelope must be kept in a safe place. Any du-
plicate must be requested from Beretta S.p.A. which reserves
to charge the cost.
2.2 Labels positioning
A Package label
B Transport label
B
A
2.3 Dimensions and weight
L
H
P
Model 5 7 11 15 11T 15T
Packaging dimensions
L mm 960 960 960 960 960 960
P mm 451 451 451 451 451 451
H mm 960 960 1500 1500 1500 1500
Weight kg 64,0 76,0 122,0 122,0 128,0 128,0
L
H
P
Model 5 7 11 15 11T 15T
Product dimensions
H mm 821 821 1363 1363 1363 1363
L mm 908 908 908 908 908 908
P mm 350 350 350 350 350 350
Weight kg 57,0 69,0 115,0 115,0 121,0 121,0

INSTALLATION
14
2.4 Handling and removal of the packing
9
Before unpacking, personal protective clothing should be worn
and used transport means and tools suitable for the size and
weight of the unit.
• The product can be handled in two ways:
— using a hoist or a crane
— using a fork lift or a transpallet which can bear its weight
It should be noted that even if a forklift / pallet truck is used, the use of
a hoist or crane is necessary to remove BHYDRONIC UNIT B
from the pallet and place it in the required place of installation.
9
The equipment must always be handled vertically
9
Use a small balance to prevent that the pressure of the belts
damages the unit.
9
Do not tilt the equipment over 15°
9
The unit’s weight is concentrated on the compressors side
(electrical connections side).
1 Polyethylene lm
2 Cardboard packaging
3 Polystyrene panel
1
2
3
• Follow the below instructions for packing removal:
— transport the equipment in the installation place, using tools
that can withstand the weight
— remove the polyethylene lm
— remove the document envelope
— remove the cardboard packaging
— revove the polystirene protection
0 The packing material must not be disposed of in the surround-
ing environment and must be kept out of children reach, as
it can be dangerous. It must be disposed of according to the
regulations in force.
The equipment is xed to the pallet by 4 screws: two at the front
and two at the rear; these must be removed.
2.5 Place of installation
The location of BHYDRONIC UNIT B devices must be deter-
mined by the system's designer or by another competent person,
and must take into account the technical requirements, as well as
any current local regulations that require specic permits to be ob-
tained. (e.g.: zoning, architectural, environmental protection, etc.).
It is therefore recommended to obtain all the necessary permits
before installing the device.
BHYDRONIC UNIT B is designed for outdoor installation.
Avoid:
— positioning the unit in air shafts and/or basement window
wells
— any obstacles or barriers that will cause the expelled air to
recirculate
— places with the presence of aggressive atmospheres
— conned locations in which the device's sound levels might
be compounded by reverberations or resonances
— proximity to bedrooms and rooms for resting
— positioning in corners where dust, leaves, or any other ma-
terials typically accumulate, which could compromise the de-
vice efciency by obstructing the airow
— situations in which the air expelled from the device might en-
ter the habitation through doors or windows, thus creating an
inconvenience for the people inside
— situations in which the air expelled from the device will en-
counter resistance from opposing winds
— direct exposure to sunlight and proximity to heat sources

INSTALLATION
15
9
If the unit is installed in a windy location, t an anti-wind grille
to protect the fan and check the correct functioning of the unit.
2.6 Recommended distances
The distances for the device installation and maintenance are
shown in the gure. The indicated spaces are necessary in order to
prevent the airow from being blocked, as well as to allow normal
cleaning and maintenance operations to be carried out.
Single installations
1000
150
150
150
150
200
500
1000
1000
300
500
9
Measurements in mm.

INSTALLATION
16
Multiple installations
1000
1000 200 200
300300300150
300 300
1500 2000 2001000 300
9
Measurements in mm.
2.7 Positioning
BHYDRONIC UNIT B devices must:
— be positioned on a level surface that is capable of supporting
their weight
— be positioned on a sufciently rigid surface that will not trans-
mit any vibrations to the underlying or adjacent rooms
It is recommended to place a rubber sheet between the insole and
the appliance (60 shore hardness, 10 mm thick) or use appropri-
ately sized anti-vibration supports.
Provide for lifting of the unit from the oor:
— 100 mm in case of installation in ordinary areas
— 300 mm in case of installation in very cold areas or subject
to heavy snow
9
In case of installation in very cold areas or areas subject to
heavy snowfall, where freezing out is a possibility, foresee ap-
propriate antifreeze systems
A Positioning in ordinary areas
B Positioning in very cold areas or with heavy snow
1 Rubber sheet
300
100
A
1
B
600150 150
365 400
Condensation discharge
During heating operation, the unit generates condensate. The con-
densate can be left to ow freely to the ground or conveyed to a

INSTALLATION
17
place suitable for drainage.
1 Condensate drain connection
1
• In case of free runoff:
— before placing the unit, open the pre-cuts prepared on the
base
9
The condensation settles on the support surface. In case of
sub-zero temperatures it can freeze and constitute a danger:
provide suitable barriers to prevent people from approaching
the unit.
• In case of conveyed discharge:
— insert a condensate drain tting
— connect a drain hose
— direct to a place suitable for drainage
2.8 Installation on old systems or systems in
need of upgrading
When BHYDRONIC UNIT B is installed on old systems or
systems in need of upgrading, it is recommended to ensure that:
— the electrical system is compliant with the applicable regula-
tions and has been installed by qualied professionals
— the expansion tank ensures total absorption of the expansion
of the uid contained in the system
— the system is washed, cleaned of sludge, scale, deaerated
and the seals have been checked
— a treatment system is provided when the feed / make-up
water is particular (see chapter"Water quality characteris-
tics"
p. 21 )
9
In the event of a replacement, the system must be inspected
by the designer or by another competent person, and must
be compliant with the technical requirements, as well as the
current legislations and regulations.
9
The manufacturer is not responsible for any damage caused
by incorrect installation of the systems and failure to clean the
hydraulic system.
2.9 Hydraulic schemes
Heat pumps require systems that guarantee a constant ow of uid
to the appliance, within minimum and maximum values and with
sufcient volumes to avoid disturbances to the refrigerant circuits
and to guarantee the correct degree of comfort.
0 IT IS FORBIDDEN to install the appliance in open vessel sys-
tems.
2.9.1 Plant water content
For correct operation of the appliance, a minimum volume of water
must be guaranteed in the primary circuit of the system.
9
The minimum volume is necessary to prevent the risk of ice
formation during defrosting operations or the continuous mod-
ulation of the compressor frequency.
It also allows the following advantages:
— less wear on the appliance
— increase in system efciency
— migliore stabilità e precisione della temperatura
• Il volume minimo è calcolato in base alla seguente formula:
• Vmin = Cnom x N
Vmin better temperature stability and precision
Cnom Nominal cooling capacity under the conditions envisaged
for the system in kW
N Multiplication factor
Application N
Cooling 3,5
Heating or domestic hot water 6
If the minimum volume is not reached, a suitably sized storage tank
must be provided.
2.9.2  Waterow
The water ow rate must be kept constant during operation and
must comply with the limits shown in the table:
Model 5 7 11 15 11T 15T
Hydraulic characteristics
Minimum water ow m³/h 0,2 0,4 0,6 0,6 0,6 0,6
Nominal water ow m³/h 0,9 1,2 1,9 2,6 1,9 2,6
Maximum water ow m³/h 4,3 4,3 7,0 7,0 7,0 7,0

INSTALLATION
18
System scheme for heat pumps cascade
1 HYDRONIC UNIT B
2 External sensor (option)
3 Temperature probe for cascade connection (accessory)
111 1
2
3
9
Only units of the same model can be cascaded.
2.10 Hydraulic connections
The size and positioning of the hydraulic connections of B
HYDRONIC UNIT B are shown in the following table.
Before installation, it is advisable to wash all the pipes of the sys-
tem thoroughly to remove any processing residues.
MODEL 5 - 7
A System return
B System delivery
C Discharging
40
60
466
356
87
A
B
C

INSTALLATION
19
MODEL 11 - 15
A System return
B System delivery
C Discharging
73
43
645
744
169
A
B
C
Model System return System delivery Discharging
Inches Inches Inches
51 1 3/4
71 1 3/4
11 1 1 3/4
15 1 1 3/4
11T 1 1 3/4
15T 1 1 3/4
9
The choice and installation of the system components is dele-
gated to the installer, who will have to operate according to the
rules of good technique and current legislation.
9
The discharge of the installed safety valves must be connected
to an adequate collection and evacuation system. The man-
ufacturer of the appliance is not responsible for any ooding
caused by the intervention of the safety valves.
9
Is suggested to put a by-pass connection for the heat pump in
order to allows the cleaning of the system pipes without dis-
connecting the unit.
9
The connection tubes must have the appropriate diameter and
must be supported, so as not to rest their weight on the unit.
9
The systems with anti freeze additives or specic local laws,
require the installation of hydraulic backow preventers.
9
Check the pressure drops of the appliance, the system, and
any other accessories mounted in line.
9
Do not use the heat pump for treating industrial water, swim-
ming pool water or domestic water. If water supplies of this
kind are used, an intermediate heat exchanger must be used.
Make sure to maintain the min. water content, possibly adding
a storage.
9
If the unit works in a system with a boiler >(parallel installation)
when the boiler is working, make sure that the water tempera-
ture inside the heat pump does not exceed 60 °C.
Mandatory items:
— install a removable mesh water lter at the inlet to the appli-
ance in an area accessible to maintenance, with character-
istics of at least 10 meshes / inch², to protect the appliance
from impurities in the water
— after the installation of the system and after each repair, it is
essential to clean the entire system thoroughly, paying par-
ticular attention to the condition of the lter
— install a suitably sized expansion vessel
— install air vent valves in the highest points of the pipes
— install exible elastic joints for connecting the pipes
— ensure that the quantity of water in the primary circuit is
greater than the minimum volume indicated in the chapter
"Plant water content"
p. 17 , ensure that the quantity of wa-
ter in the primary circuit is greater than the minimum volume
indicated in the chapter
— Foresee the pipes insulation, after the leackage verication,
in order to minimize the heat loss and the condensate effect.
— Use anti freeze additives in order to prevent the wter freezing
if the water circuit and pipes are exposed to ambient temper-
ature below 0°C.
0 It is forbidden to run the unit without a clean water lter in-
stalled.

INSTALLATION
20
2.10.1 Piping connections
HYDRONIC UNIT B
A Factory connections
B Field connections (for installer)
1 Plate heat exchanger
2 Temperature sensor
3 Circulation pump
4 Safety valve
5 Flow switch
6 Expansion vessel
7 Mesh lters (available as an option)
8 Stop valves
9 Filling valve
10 Pressure gauge
11 Discharge tap
12 By-pass valve for freezing protection
13 Calibration valve
14 Anti-vibration joint
15 Additional expansion vessel (if neces-
sary)
16 Air bleed
17 Thermometer
T
T
1
2
2
3
45
6
7
A B
8 9 8
10
11
12
13 8
8
8
8
14
14 15
16
16
17
17
The hydraulic connections must be completed by installing:
— mesh lters (available as an option)
— Discharge tap
— additional expansion tank (if necessary)
— a suitably sized technical water storage tank
— lling group
— return and delivery thermometers
— air vent valves in the highest points of the pipes
— exible elastic joints
— shut-off valves
— shut-off valves for chemical washing
— una valvola di by-pass tra mandata e ritorno dell'apparecchio,
per protezione antigelo durante il periodo invernale
Cascade units
1 Stop valves
2 Calibration valve
3 Check valve
4 Cascade probe
1 1 1 1
1 1 1 1
2
3
2
3
2
3
2
3
4
9
Only units of the same model can be cascaded.