Beretta Control Box SUN C Instruction Manual

kWh
Esc
F1
F3
F4
F2
A1
CONTROL BOX
SUN C
DIFFERENTIAL
CONTROLLER
INSTRUCTIONS FOR THE
USER, INSTALLER AND
TECHNICAL SERVICE

INSTALLER MANUAL
2
The following symbols are used in this manual:
b WARNING = actions that require special care and suitable preparation
a PROHIBITED = actions that absolutely must NOT be carried out
This booklet code 20075772 - Rev. 1(04/14) contains 36 pages.
Dear Customer,
Thank you for having placed your trust in us.
You have surely chosen one of the best appliances available on the market, designed and built using
advanced technology that, we are certain, you will have the opportunity to appreciate over the long
working life of the product.
Please read this booklet carefully. It contains important warnings and suggestions for the installation
and correct use of the temperature controller and how to fully exploit its features.
Thank you once again.
The Control Box SUN C differential controller is compliant with:
• Low voltage directive 2006/95/EC (formerly 73/23/EEC)
• Electromagnetic compatibility directive 2004/108/EC (formerly 89/336/EEC)
• EN 60730-1:2000, EN 60730-2-9

3
CONTENTS
1 WARNINGS AND SAFETY INSTRUCTIONS............................................. 4
2 DESCRIPTION OF THE DEVICE ............................................................... 4
General operation .........................................................................................................................................4
Controls.........................................................................................................................................................5
Display (operation) ........................................................................................................................................6
Commissioning..............................................................................................................................................7
Setting the user values .................................................................................................................................8
Setting the values reserved for specialists .................................................................................................10
Assembly / dismantling ...............................................................................................................................18
Dimensions..................................................................................................................................................18
Electrical connection ...................................................................................................................................19
Special functions .........................................................................................................................................20
System diagrams ........................................................................................................................................21
Probes.........................................................................................................................................................35
Technical specifications...............................................................................................................................35

INSTALLER MANUAL
4
1 WARNINGS AND SAFETY INSTRUCTIONS
b Once having removed the packaging,
check that the contents are all present
and intact. Should you notice any prob-
lems, contact the reseller who sold the
device.
b The device must be installed by approved
technicians who at the end of the work
will issue a declaration of conformity that
the installation has been completed in a
workmanlike manner, that is, in compli-
ance with the legislation in force and the
instructions provided in this booklet.
b The Control Box SUN C differential
controller must only be used for the
intended purpose.
b The manufacturer waives all liability, con-
tractual or other, for damage to property
or injury to persons or animals caused
by improper installation, adjustment,
maintenance or use.
b This booklet is an integral part of the
device, and consequently it must be
kept with care and must ALWAYS
accompany the device, even if this is
sold to another owner or transferred to
another user or to another installation.
b If the booklet is damaged or lost, contact
your local Technical Service Centre for
another copy.
Remember that when operating products
involving the use of electricity, a number of
fundamental safety rules must be observed,
namely:
aNever clean or service the device with-
out first disconnecting it from the mains
power supply, by turning the main sys-
tem switch to “OFF”.
aNever pull, disconnect, or twist the elec-
trical cables coming from the device,
even if it is disconnected from the mains
power supply.
aDo not dump the packaging material
into the environment, or leave it within
the reach of children, as it is a potential
hazard
2 DESCRIPTION OF THE DEVICE
2.1
General operation
This controller can manage different types of
heating systems:
1) Solar heating systems
2) Solid fuel boiler with one or two storage
cylinders
3) Solid fuel boiler with solar heating inte-
gration
4) Solar heating system with two collectors
5) Solar heating system with two storage
cylinders - switching by valve
6) Solar heating system with two storage
cylinders – two fill pumps
7) Solar heating system with supplemen-
tary heating function and one or two
storage cylinders
8) Solar heating system with central heat-
ing return temperature control
9) Solid fuel boiler with central heating
return temperature control
10) Solar heating system with two storage
cylinders in cascading
11) Solar heating system with control of two
storage cylinder stratification zones
12) Solar heating system with control of three
storage cylinder stratification zones
13) Solar heating system with drain-back
function

5
kWh
Esc
F1
F3
F4
F2
A1
Function selector
Enter button
Escape button
Parameter
selector
Function selector
No function selected / Stand-by. (The display
shows that the system is switched on but in
stand-by mode)
Current system configuration
-The display shows a diagram of the currently
selected system configuration.
-Turn the parameter selector clockwise to dis-
play the various sensors and actuators in the
selected system configuration along with their
names (e.g. F1, F2, A1). Turn the parameter
selector anti-clockwise to display current sta-
tuses and temperatures.
Collector/storage cylinder temperature sensor
-The display reads out the temperature current-
ly measured by temperature sensor F1 in the
solar collector. In some system configurations,
the temperature measured by the storage
cylinder temperature sensor is shown instead.
-The trend in temperatures measured by the
sensor over the last few hours is also shown.
Supplementary temperature sensor
-The display reads out the temperature cur-
rently measured by temperature sensor F2.
-The trend in temperatures measured by the
sensor over the last few hours is also shown.
-If temperature sensor F2 is not installed, the
display reads out the message “Not con-
nected”.
Storage cylinder top temperature sensor
-The display reads out the temperature cur-
rently measured by storage cylinder top tem-
perature sensor F3.
-The trend in temperatures measured by the
sensor over the last few hours is also shown.
-If temperature sensor F3 is not installed, the
display reads out the message “Not con-
nected”.
Storage cylinder bottom temperature sensor
-The display reads out the temperature cur-
rently measured by storage cylinder bottom
temperature sensor F4.
-The trend in temperatures measured by the
sensor over the last few hours is also shown.
Daily, weekly, monthly or total energy output
-The display reads out the energy produced by
the solar collector/s.
-The display switches automatically between
Wh, kWh and MWh.
User settings
-The display shows the settings the user can
change to adapt the system to his own per-
sonal needs.
Installer settings
-The display shows the setting menus the
installer can use to put the solar controller
into service. A password is required to access
these settings.
kWh
2.2
Controls
Fig. 2.1

INSTALLER MANUAL
6
2.3
Display (operation)
Display content
-The content of the display depends on the
position of the function selector.
-If a system configuration error is detected,
the display turns red.
Standby
-The controller is electrically live.
Automatic mode
-The display shows a schematic of the cur-
rently selected system, together with its
actuators and sensors.
-Turn the selector knob to view either the
names of the various actuators and sensors
(e.g. F1, F2, A1) or their current statuses
and temperatures.
Temperature of sensor F1 (collector/boiler)
-The display reads out the temperature of
the solar collector currently measured by
sensor F1. In some system configurations,
the temperature measured by the solid fuel
boiler temperature sensor is shown instead.
-The sensor’s temperature curve for the last
few hours is also shown.
-The display is updated every minute. The
current time is shown at the bottom right of
the graph.
OFF
Turn to switch the controller on
The controller is powered
on but in standby mode
esc
k
W
h
esc
k
W
h
F1
F2
A1
F3
F4
esc
k
W
h
17:38
80°
70°
72°
Temperature of sensor F2 (supplementary
temperature sensor)
-The display reads out the temperature cur-
rently measured by temperature sensor F2.
-The sensor’s temperature curve for the last
few hours is also shown.
-The display is updated every minute. The
current time is shown at the bottom right of
the graph.
-If temperature sensor F2 is not installed, the
display reads out the message “Not con-
nected”.
Temperature of sensor F3 (top of storage
cylinder)
-The display reads out the temperature cur-
rently measured by temperature sensor F3.
-The sensor’s temperature curve for the last
few hours is also shown.
-The display is updated every minute. The
current time is shown at the bottom right of
the graph.
-If temperature sensor F3 is not installed, the
display reads out the message “Not con-
nected”.
Temperature of sensor F4 (bottom of stor-
age cylinder)
-The display reads out the temperature cur-
rently measured by temperature sensor F4.
-The sensor’s temperature curve for the last
few hours is also shown.
-The display is updated every minute. The
current time is shown at the bottom right of
the graph.
esc
k
W
h
17:38
55°
45°
50°
2
esc
k
W
h
Top
esc
k
W
h
Bottom

7
After having correctly completed installation,
power the controller up.
The display briefly shows the controller firm-
ware version. The standard display is then
shown.
b
For correct operation, enter the time and
date and then suitably configure the sys-
tem. Consequently, the first step involves
setting parameters [P1]/[P2]/[P22].
When the controller is next restarted, it is
ready to operate with the factory settings
(except for parameters [P1]/[P2]/[P22]).
SETTING THE TIME AND THE WEEKDAY
-Turn the function selector to User Menu .
-The display lists the various sub-menus
available to the user.
-Turn the parameter selector to "Clock".
-Press the Enter button to display the current
time.
-Turn the parameter selector clockwise to
increase or anti-clockwise to decrease the
setting to the desired time.
-Press the Enter button to enter your chang-
es.
-Turn the parameter selector to "Weekday".
-Press the Enter button to enter the sub-
menu.
-Turn the parameter selector to select the
current weekday, then press the Enter but-
ton to enter your selection.
2.4
Commissioning
Thermal energy metering
-The display shows the thermal energy pro-
duced by the collector/s. You can view
energy production for today, yesterday, this
week, last week, this month and last year
(the last 365 days).
-The display switches automatically between
Wh, kWh and MWh.
User settings
-The display shows the menus the user can
access to configure the system as needed.
Service settings
-The display shows the menus the installer
can use to put the solar controller into ser-
vice.
-A code (password) is required to access
these settings.
esc
kWh
Energy produced
today delete
esc
User menu
Language
Clock
select OK Press
k
W
h
esc
Service menu
Technician
Parameter
select OK Press
k
W
h

INSTALLER MANUAL
8
2.5
Setting the user values
Turn the function selector to User Menu .
Turn the parameter selector to highlight
the required sub-menu (Language, Clock,
Weekday, Parameters, Reset).
Press the Enter button to access the selected
sub-menu.
Turn the parameter selector to set the required
value.
Press the Enter button again to enter the new
value.
Exiting programming mode
You can exit programming mode at any time
simply by turning the function selector or by
pressing the Esc button.
Any changes made but not confirmed by
pressing the Enter button will be lost.
No. Description Range of values Factory setting Own
setting
00 List of errors Display only No error
01 Time setting 0:00-23:59 10.00
02 Weekday setting: Monday - Sunday Monday
03 Daily production Display only / Reset 0 kWh
04 Total production Display only / Reset 0 kWh
05 Kick pump ON time OFF - 00:00-23:45 07:00
06 Kick pump OFF time 00:15-24:00 22:00
07 Supplementary heating function ON time OFF - 00:00-23:45 05:00
08 Supplementary heating function OFF time 00:15-24:00 21:00
09 Circulating pump ON time OFF - 00:00-20:45 05:00
10 Circulating pump OFF time 05:15-24:00 21:00
11 Anti-legionella function activation time 00.00 – 23:45 02:00
LIST OF USER PARAMETERS (accessible via the "Parameters" menu)
EXPLANATION OF THE VALUES SET /
FUNCTIONS
To change the standard settings, first select
the type of system configuration based on the
system diagrams available (see the chapter
on "System diagrams").
Therefore, parameter [P22] must be set first.
The different values set for the corresponding
system selected/created (1-13) are described
as follows.
If, for example, the controller is used for
system configuration = 1, only refer to the
descriptions for the operation of this system.
VALUES SET BY THE USER
01 Time setting
Set the current time.
02 Weekday
Set the current weekday (Monday - Sunday)
(display only)
RESET PRODUCTION COUNTERS
03 Daily production display (*)
In this position the daily production is dis-
played. At midnight the value is automatically
reset to “0000” and the daily production value
is added to the total production.
The daily production value can be reset to
“0000” by pressing and holding OK for at
least two seconds.
(*) For convenience, energy is displayed in
Wh, kWh or MWh depending on the quantity
produced.
04 Total production display (*)
This value is always updated at midnight.
To determine the exact current total, add the
daily production to the total value "displayed".
Reset the value to “0000” by pressing and
holding OK (for at least two seconds).
(*) For convenience, energy is displayed in
Wh, kWh or MWh depending on the quantity
produced.

9
KICK PUMP FUNCTION
System 2, 9:
No function
System 1, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13:
The kick pump function can be activated dur-
ing periods of the day in which solar heating
is required [P05-P06].
This function ensures that the sensor meas-
ures effective collector temperature even if the
collector pump is off at the time.
The function is disabled when no switching
times have been set (P05=P06=OFF) or the
kick duration is zero (P60=OFF). After each
pause set for the kick function [P61], the cor-
responding collector pump is activated for the
kick time set [P60] (ensuring heat is carried to
the probe). If during the monitoring time [P62]
the collector probe measures a temperature
increase of 0.5°C, the collector pump is oper-
ated for one minute.
The switching conditions for the collector
pump are then monitored.
05 Kick pump function ON time
The temperature monitoring function starts at
this time.
06 Kick pump function OFF time
The temperature monitoring function ends at
this time.
AUXILIARY HEATING FUNCTION
Selectable on most systems as an additional
function (see the paragraph on special func-
tions):
When activating the post-heating function, a
temperature can be set [P47] for the selected
storage cylinder.
During the time the function is enabled [P07-
P08], this temperature is maintained constant
by activating an additional heater.
Supplementary heating is switched on if the
temperature measured by sensor F3 is below
P47- P34 (post-heating control hysteresis)
and P52 (solar supplement tolerance).
It is switched off if the temperature measured
by sensor F3 exceeds nominal temperature
P47 (for solar supplement P47-P52).
07 Supplementary heating function ON
The set temperature [P47] is enabled starting
from this time.
08 Supplementary heating function OFF
The set temperature [P47] is enabled until
this time.
CIRCULATING PUMP
Selectable on most systems as an additional
function (see the paragraph on special func-
tions):
P54=1: During the enabling times P09-P10
the circulating pump is always on.
P54=2: During the enabling times.
P09-P10 the circulating pump is on based on
impulses.
P54=3: Circulating pump for Anti-Legionella
function.
09 Circulating pump ON time
The circulating pump is enabled starting from
this time.
10 Circulating pump OFF time
The circulating pump is enabled until this
time.
11 Anti-legionella function activation time
Anti-legionella function activation time.

INSTALLER MANUAL
10
2.6
Setting the values reserved
for specialists
Turn the function selector to .
The values reserved for specialists are param-
eters from 21-110.
b Parameters from 21-110 are password-
protected.
b The default password set is “0000” [21].
If you do not wish to change the access
code (password), simply press the Enter
button to confirm each “0”.
If you wish to change the access code (pass-
word), proceed as follows.
-Select parameter 21 and press the Enter
button.
-Enter the default access code (0000). Press
the Enter button to confirm each digit.
-Now enter the new access code. Turn the
parameter selector to select each new digit.
-Press the Enter button to enter each new
digit. The new code is memorised when the
last digit is entered.
The message “code error” appears if you enter
an unacceptable access code.
If the password is entered by mistake or forgot-
ten, the value can be RESET.
You can use the service menu to force outputs
in order to test relays A2/A3.
No. Description Range of values Factory setting Own
setting
21 Access code – Entering the access code 0000-9999 0000
22 Type of system configuration (see water circuit diagram) 1-13 1
23 Speed level, real value
display only %
24 Speed control operating mode Auto - Manual Auto
25 Speed level, nominal value (manual) 30 – 100 % 100 %
26 Min. speed level (auto) 30 – 100 % 30 %
27 Max. speed level (auto) 30 – 100 % 100 %
28 Temperature differential for 100% control signal 10°K – 90°K 20°K
Switching thresholds / dynamic differentials
30 First switching activation threshold 1°K – 30°K 6°K
31 First switching deactivation threshold 1°K – 30°K 3°K
32 Second switching activation threshold 1°K – 30°K 6°K
33 Second switching deactivation threshold 1°K – 30°K 3°K
34
Post-heating control hysteresis 1°K - 30°K 5°K
Special functions
40 Enable collector temperature (-20)°C – (+95)°C 40°C
41 Disable collector temperature (-20)°C – (+95)°C 35°C
42 Maximum collector temperature 80°C - 180°C 110°C
43 Enable auxiliary heater temperature 0°C – 90°C 60°C
44 Maximum solid fuel boiler temperature 30 °C – 130 °C 90°C
45 Collector protection temperature 80°C - 180°C 110°C
46 Switching threshold for storage cylinder cooling OFF - 1 K - 30 K OFF
47 Set storage cylinder temperature (post-heating) 10°C – 90°C 40°C
50 Maximum storage cylinder temperature 10 °C – 130 °C 60°C
51 Maximum storage cylinder temperature 10 °C – 130 °C 85°C
52 Solar supplement tolerance (see P47) 0°K – 90°K 10°K
53 Anti-Legionella function OFF, (50°C – 70°C) OFF
Additional relay function (outputs A2/A3)
54 Function A2 0 – 8 0
Function A3 0 – 8 0
55 Circulating pump activation time 1 min – 10 min 1 min
56 Circulating pump deactivation time 1 min – 20 min 5 min
Return temperature control
57 Minimum return temperature 0°C – 90°C 60°C
58 Mixing valve differential when OPENING 5°K – 25°K 18°K
59 Mixing valve differential when CLOSING 5°K – 25°K 12°K
Kick pump function (temperature monitoring)
60 Kick duration OFF, 2s – 59s OFF
LIST OF SPECIALIST VALUES