Immergas BCM Operating instructions

Instructions and
recommendations
Installer
Maintenance technician
IE BCM
Boiler controller
*1.042371ENG*
STD.005482/001

1 Generality ............................................................................3
2 Description..................................................................................4
3 Application ..........................................................................7
3.1 Programming the operation parameters ...................................8
3.2 BCM parameters (HSC) - General settings/
settings for use with HSCP..........................................................9
3.3 BCM Parameters (HSC) - General settings /
use settings with HSCP..............................................................12
3.4 Error code....................................................................................13
INDEX
STD.005482/001

3
Generality
1GENERALITY
e BCM unit is capable of acting:
- as a controller of a single boiler, checking the basic services of the
heating system, including the system’s safety devices.
- as an HCM (Heating Cascade Manager) controller, checking the
overall structure of several heat generators.
STD.005482/001

4
Description
5LOCAL CONNECTORS
for boiler/cascade management
N° Pin S.E. Description
A1
Internal boiler connections
7 14 SMG Global ow sensor
6 13 SRG Global return sensor
5 12 DK No water safety pressure switch
4 11 PG min. Min Gas pressure switch
3 10 SL Level sensor
2 9 PF Flue pressure switch
1 8 PF min Minimum ue pressure switch
Y1 Generator cascade connections
1 + Supp. Input 20 ÷ 40 Vdc
2 - GND
3 + eBUS
4 - GND
5 6 SMG Global ow sensor (duplicated).
6HOST CONNECTORS
to manage remote system
N° Pin S.E. Description
Y2
1
Modbus
A (PLC)
2 B (PLC)
3 eBUS + Ext. Cascade regulator
4 eBUS - GND
5
0-10V
C.P.M.
Modulating Pump Controller
6 GND - 0-10 V
7
Analogue input
0 - 10 V (*)
8
Stemp.
ACC Storage tank temperature sensor
9 Cong Programmable digital input:
Enable generator
10 FL Flow switch
11 INAIL Safety devices input (nc)
12 Inputs 9 ÷ 12 common
KEY
N° Description
AMANUAL request button
(Emergency activity) (*)
1
GREEN LED
OFF MANUAL request NOT active
ON MANUAL request active
BRELEASE button
2
RED LED
ON FAULT detected
FLASHING ANTIFREEZE protection activation
OFF Normal functioning
3
GREEN LED
ON CH heating operation or antifreeze protec-
tion active
FLASHING DHW demand operation
OFF Stand-by
4
YELLOW LED
ON BCM communication with local controllers
and remote BCM (cascade)
FLASHING BCM communication with local HSCP or
SHC controllers
OFF No communication with controllers (manual
request A)
(*) Active only if HSCP faulty or input 9 of Y2 (Cong) not enabled.
LED o.
2DESCRIPTION
STD.005482/001

5
123456
Y1
A
LIM. + 24 V
eBUS +
ALIM. - GND
eBUS -
GND
SMG
SMG
981011121314
SL
3
10
8
2
9
1
PF
11
4
2134567
A1
PF
min.
PG
min.
DK
12
5
13
6
SRG
14
7
SMG
INGR ANALOG.
ModbusA
0-10V
GND 0-10V - INGR.
Stemp. ACC
Config.
FL
C.P.M.
Y2
12 11 10 987654321
ModbusB
PLC
eBUS
eBUS +
E8
INAIL
INGR. COM ON/OFF
TA
0
1
2
3
4
5
6
7
8
9
Sw1
Description
(*) ANALOGUE INPUT
It is normally congured for control via EXTERNAL TEMPERATURE
CONTROL (PLC) 0-10 V. (If external HSCP is used, input 0-10 must
be congured).
SW1
Bus addresses 0 - 9 selector.
Normally set at 0 for external BCM (cascade controller).
In internal BCM (with single cascade boiler) it has other
values.
STD.005482/001

6
Y2
12 11 10 9876543
21
SE
Y2
12 11 10 9876543
21
P.
Mod.
C.P.M.
230 V
(-) GND
Y2
12 11 10 9876543
21
Stemp
ACC.
(-) GND
1
2
3
Y3
P. Ca
r.
DHW
P.
CH
230 V
N
L
1
2
3
Y3
COM. COMAND
P. Car. DHW
COMAND
P. CH
1
2
3
4
Y4
P.
Coll.
230 V
N
L
1
2
3
4
Y4
COMAND
P. Coll.
USC
ALLARM SIGNAL
Description
Y4 1
2 P. C o l l . Manifold pump
3 4 ALARM Alarm output
S.E. = WIRING DIAGRAM KEY
(see boiler booklet)
Y3
1COM. Common output
2P.Car.
DHW Storage tank load pump
3 P. CH Central heating pump
STD.005482/001

7
EMERGENCY
Application
Manual Emergency request at temperature SET POINT, by inserting
a resistance at the indicated value.
3APPLICATION
CASCADE MANAGER
• eBUS communication interface with SHC BMM modules
• Management of a cascade with a maximum of 8 boilers
• Global return temperature detection
• Global ow temperature - temperature limit - dierential temperature
detection.
• Six ON / OFF inputs for global protection sensors:
- FL minimum water ow rate
- PG min minimum gas pressure
- DK minimum water pressure
- PF ue gas 1 obstruction
- PF ue gas 2 obstruction
- SL water level sensor of the drain trap
• 0-10 V CPM Live output for modulating control of the manifold
pump.
• CONFIG. TA ON / OFF enabling input for the heat generator.
• Relay output for xed speed pump or for boiler status indication (in
demand or standby).
REMOTE CONTROL
• eBUS communication interface for higher level HCM.
• Modbus communication interface for integration with a building
automation system.
• Voltage input to interface with a commercial temperature controller.
• Relay contact output for the indication of the boiler alarm.
• ON/OFF input to reset alarm.
DHW MANAGEMENT
• Stemp ACC. Temperature sensor for DHW storage tank.
• COMMAND P.Car DHW Relay output for storage tank load pump.
CH MANAGEMENT
• ON / OFF input for CH demand.
• COMMAND P.CH Relay output for the direct ow.
STD.005482/001

8
thermostat
Application
3 - Device management SELECTION
Select with knob ‘‘C’’ and press key ‘‘A’’ in order to access the tech-
nical programming area of each device (you must enter password 0000).
4 - SELECTION
Select the parameter using knob ‘‘C’’.
Press ‘‘A’’ (selec).
5 - MODIFICATION
Rotate knob ‘‘C’’ to edit the value.
Press ‘‘A’’ (save).
3.1 PROGRAMMING THE OPERATION
PARAMETERS
ATTENTION!
Function reserved exclusively to Authorised Service
Centres.
1 - SELECTION
Use knob ‘‘C’’ to select the symbol . Press ‘‘A’’. Wait for scanning.
2 - Device management SELECTION
e display shows the status and the active sections of the system:
( - = inactive / 1 active)
• HCM (BCM cascade controller)
• SHC (multifunction module) optional
• BMM (burner management board)
Select the module using knob ‘‘C’’ and conrm by pressing ‘‘A’’.
STD.005482/001

9
Application
Code Symb. Value Description Factory setting
BCM use setting
with
HSCP
803 Srv Services enabled
19 CH heating + Antifreeze 19
18 Antifreeze
27 DHW + Antifreeze
1 Boiler control (read only)
16 Disabled 16
483 rP °K Temp. Max Dierential
0 Disabled
1 ÷ 500 Maximum Δ temperature (° C x 10) 0 0
34 HY °K Burner Hysteresis
50 ÷ 200 (°C x 10) 5 =
31 HL °C CH#1: Burner Minimum Setpoint
200 ÷ 400 350 =
39 HH °C CH#2: Burner Maximum Setpoint
450 ÷ 850 800 =
799 AC 0/10 V analogue input function:
0 Manual adjustment target temperature
1Outdoor temperature sensor 1
2 0 / 10 V Temperature control target 2
3 0 / 10 V Modulation control
376 DI1 Programmable Input #1
0 CH Service Enabling 0
1 Heat generator enabling 1
2 Reset alarms
322 Po min Pump Post-circulation
1 ÷ 10 5
341 PL V Minimum modulation outlet pump
0 ÷ 100 burner level V x 10 30
313 Pr V Maximum modulation outlet pump
0 ÷ 100 burner level V x 10 100
792 CHP % Central heating: Maximum modulation
0 ÷ 100 100
611 POT °K Gen: Err. Max. Parallel
0/1 ÷ 30 5
612 POL % Gen: Mod. Max. Parallel
0 ÷ 100 0
3.2 BCM PARAMETERS HSC  GENERAL SETTINGS/SETTINGS FOR USE WITH HSCP
STD.005482/001

10
Application
Code Symb. Value Description Factory setting
BCM use setting
with
HSCP
650 dL °C DHW: Minimum Setpoint
250 ÷ 450 350
385 dH °C DHW: Maximum Setpoint
500 ÷ 650 650
360 dt Storage tank adjustment
0 ÷ 15 0
656 drt °K DHW: Temp. Request Dierential
-20 ÷ 20 4
657 drH °K DHW: Request Temp. Hysteresis
1 ÷ 20 8
310 dpT sec. DHW Pump: Post-circulation
5 ÷ 600 60
660 dbT °C DHW: Temp. Boiler Maximum
50 ÷ 85 75
48 ChSet °C CH#1: Setpoint
20 ÷ 85 85
64 ChPO CH#1: Parallel Supply
0 ÷ 1 0
mC % Minimum % of burner modulation
0 ÷ 1000 (*) minimum modulation which determines switching o
burner, only cascade management (*)
600 mB Burners: Min. Inserted
1 ÷ 8 1
346 FL % Minimum Modulation
0 ÷ 100 25
616 BSt sec. Gen: Insertion Time
30 ÷ 900 120
613 BRt sec. Gen: Removal Time
30 ÷ 900 120
336 HS °C/min Temperature Gradient
1 ÷ 30 5
353 HP °K CH PID: Proportional
0 ÷ 50 25
354 HI °K CH PID: Integrative
0 ÷ 50 12
478 Hd °K CH PID: Derivative
0 ÷ 50 0
816 MI ModBus Address
0 ÷ 127 1
STD.005482/001