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)