Beretta Exclusive GREEN HE R.S.I. Series Installer And User Manual page 18

EXCLUSIVE GREEN HE C.S.I. - R.S.I.
16 - SETTING THE THERMOREGULATION – OPTIONAL with use of external sensor
Checking the connection with the external probe
!FTER CONNECTING THE EXTERNAL PROBE TO THE BOILER, USE THE ).&/ FUNCTION TO CHECK THAT THE PROBE HAS BEEN AUTOMATICALLY RECOGNISED BY THE TEMPERATURE
control card. Immediately after installation, the value read by the probe may very well be higher then that measured by a reference probe.
%NABLE AND OPTIMISE THE 4(%2-/2%'5,!4)/. FUNCTION BY SETTING THE FOLLOWING PARAMETERS:
PARAMETER
490% /& "5),$).'
-!8)-5- (%!4).' 3%4 0/).4
-).)-5- (%!4).' 3%4 0/).4
%.!",% 4(%2-/2%'5,!4)/.
&5.#4)/.
/&&3%4 4%-0%2!452% #526%
490% /& (%!4 2%15%34
To access the programming mode, consult "Programming parameters".
PARAMETER 03. Type of building
In order to calculate delivery temperature, the temperature control system
does not directly use the external temperature value but considers the heat
insulation of the building: in well-lagged buildings, external temperature
variations affect the ambient temperature less than they do in badly-lagged
buildings. Use parameter 3 to set the heat insulation level of the building
according to the following scheme:
Type of building
New Old
houses houses
A 19
B 20
C 19
D 18
PARAMETERS 21 and 22. Maximum and minimum delivery
temperature
These two parameters limit the delivery temperature automatically produced
BY THE 4%-0%2!452% #/.42/, FUNCTION. 0!2!-%4%2 21 DETERMINES
-!8)-5- $%,)6%29 4%-0%2!452% (-!8)-5- (%!4).' 3%4 0/).4)
while PARAMETER 22 determines MINIMUM DELIVERY TEMPERATURE
(-).)-5- (%!4).' 3%4 0/).4).
PARAMETER 44. Enable thermoregulation function
The connected external temperature probe combined with PARAMETER 44
provides the following operating modes:
%84%2.!, 02/"% #/..%#4%$ AND 0!2!-%4%2 44 = o (/&&) IN THIS
CASE THE 4%-0%2!452% #/.42/, FUNCTION IS DISABLED EVEN THOUGH THE
external probe is connected. The temperature read by the external probe
CAN ALWAYS BE VIEWED BY PRESSING THE ).&/ BUTTON. 4HE 4%-0%2!452%
#/.42/, SYMBOLS ARE NOT DISPLAYED.
%84%2.!, 02/"% #/..%#4%$, 0!2!-%4%2 44 = 1 (/.) IN THIS CASE
THE 4%-0%2!452% #/.42/, FUNCTION IS ENABLED. 4HE TEMPERATURE READ
BY THE EXTERNAL PROBE AND THE 4%-0%2!452% #/.42/, SYMBOLS CAN BE
VIEWED BY PRESSING THE ).&/ BUTTON.
4HE 4%-0%2!452% #/.42/, FUNCTION CANNOT BE ENABLED UNLESS THE
external probe has been fitted and connected. In this case, PARAMETER
44 is ignored and has no effect on boiler operation.
PARAMETER 45. Choosing the offset temperature curve (graph 1)
The offset heating curve maintains a theoretical ambient temperature of
2o—# AT EXTERNAL TEMPERATURES RANGING FROM +2o—# TO -2o—#. 4HE CHOICE
OF
the curve depends on the rated minimum external temperature (on the ge-
ographical area, therefore) and the rated delivery temperature (on the type
of system, therefore) and must be carefully calculated by the fitter using the
following formula:
0. 45 = 1o X
24
Hollow Solid
bricks bricks
14 12
16 15
15 14
12 10
rated delivery T - 20 20-
rated min. external T
AVAILABLE IN THE PROGRAMMING MODE
3 ).34!,,!4)/. !.$ #!,)"2!4)/. & 3%26)#%
21 ).34!,,!4)/.
22 ).34!,,!4)/.
44 ).34!,,!4)/.
45 ).34!,,!4)/. !.$ #!,)"2!4)/. & 3%26)#%
51 ).34!,,!4)/.
If, from your calculations, you obtain an intermediate value between two
curves, we suggest choosing the compensation curve closest to the value
obtained.
Example: if the value obtained from the calculations is 8, this is between
curve 7.5 and curve 10. In this case, choose the closest curve, which is 7.5.
PARAMETER 51. Type of heat request
IF AN AMBIENT THERMOSTAT IS CONNECTED TO THE BOILER, SET
PARAMETER 51 = 0 (graph 2).
The ambient thermostat makes a heat request when its contact closes, while
it stops it when its contact opens. Though delivery temperature is automati-
cally calculated by the boiler, the user may manually override it. By modifying
(%!4).' ON THE USER INTERFACE, THE (%!4).' 3%4 0/).4 WILL NO LONGER BE
AVAILABLE BUT JUST A VALUE THAT CAN BE SET FROM +5 TO -5—# AS REQUIRED.
-ODI-
fications to this value do not directly change delivery temperature but affect
the calculation made to automatically determine its value by modifying the
REFERENCE TEMPERATURE OF THE SYSTEM (o = 2o—#).
D
&OR BOILERS lTTED WITH THE 3.!.2.!. &UNCTION, IF THE !-")%.4 4(%2-/34!4
remains closed for a long time, the boiler automatically increases the delivery
temperature which is added to the effect of the temperature control function.
7HEN THE !-")%.4 4(%2-/34!4 OPENS, THE BOILER AUTOMATICALLY RETURNS
Stones
TO THE VALUE DETERMINED BY THE 4%-0%2!452% #/.42/, FUNCTION.
8
IF A PROGRAMMABLE TIMER IS CONNECTED TO THE BOILER, SET
11
PARAMETER 51 = 1 (graph 3).
9
7HEN THE CONTACT IS CLOSED, THE HEAT REQUEST IS MADE BY THE DELIVERY PROBE ON
5
the basis of the external temperature in order to maintain the rated ambient
TEMPERATURE AT THE $!9 LEVEL (2o—#). 7HEN THE CONTACT OPENS, IT DOES NOT
stop the heat request but reduces (parallel shift) the temperature curve to the
.)'(4 LEVEL (16—#). 4HOUGH DELIVERY TEMPERATURE IS AUTOMATICALLY CALCULATED
by the boiler, the user may manually override it.
"Y MODIFYING (%!4).' ON THE USER INTERFACE, THE (%!4).' 3%4 0/).4
WILL NO LONGER BE AVAILABLE BUT JUST A VALUE THAT CAN BE SET FROM +5 TO
n5—#
as required.
Modifications to this value do not directly change delivery temperature but
affect the calculation made to automatically determine its value by modifying
THE REFERENCE TEMPERATURE OF THE SYSTEM (o = 2o—# FOR $!9 LEVEL; 16—#
FOR
NIGHT level).
CONNECT AT/BT
)N CASE OF USING #/..%#4 !4/"4, ACCESSORY SUPPLIED ON REQUEST, THE BOILER
gives the possibility to choose 2 thermoregulation curves:
- /4# 1 #( (PARAMETER 45) FOR A DIRECT SYSTEM
- /4# 2 #( (PARAMETER 47) FOR A MIXED SYSTEM.
Even in case of second circuit (2CH) the curve depends on the external
minimum project temperature (on the geographical area, therefore) and on
the delivey project temperature (on the type of system, therefore); the installer
0. 47 = 1o X
must to put attention to calculate it using the following formula:
Parameters 31 and 32 give the possibility to define the maximum and the
minimum central heating set-point of the second circuit.
To correct the curve in this configuration, please refer to the instructions
supplied with the accessory.
rated delivery T - 20
20- rated min. external T
17