INSTALLATION AND MAINTENANCE INSTRUCTIONS INSTALLATION AND SERVICING MANUAL

Transcription

1 ENGLISH BCM BOILER CONTROL MANAGER INSTALLATION AND MAINTENANCE INSTRUCTIONS INSTALLATION AND SERVICING MANUAL

2 1 General Information BCM is able to operate: - as a signal boiler controller. This enables control of basic services of the heating system and includes system safety devices - as a HCM (Heating Cascade Manager). This enables control of the complex structure of several heat generators. 2 Description (*) Only active if HSCP fault or input 9 of Y2 (Config) not enabled LED off KEY No. A Description MANUAL request button (Emergency activity) (*) 1 GREEN LED OFF MANUAL request NOT active ON MANUAL request active B RELEASE button 2 RED LED ON FLASH. FAULT detected ANTIFREEZE protection activation OFF Normal operation 3 GREEN LED ON FLASH. OFF CH heating operation or antifreeze protection active DHW request operation Standby 4 YELLOW LED ON FLASH. OFF BCM communication with local and BCM remote controls (cascade) BCM communication with local HSCP or SHC controls No communication with controls (manual A request) 2

3 5 5 LOCAL CONNECTORS to manage the boiler/cascade No. Pin S.E. Description A1 Internal boiler connections 7 14 SMG Global flow sensor 6 13 SRG Global return sensor 5 12 DK Water deficiency safety pressure switch 4 11 PG min. Min Gas pressure switch 3 10 SL Level sensor 2 9 PF Flue gas pressure switch 1 8 PF min Smoke pressure minimum pressure switch Y1 Generators cascade connections 1 + Input Vdc Press. 2 - GND 3 + ebus 4 - GND 5 6 SMG Global flow sensor (duplicate). 6 HOST CONNECTORS to manage remote system No. Pin S.E. Description Y2 1 Modbus A (PLC) 2 B (PLC) 3 ebus + Est. Cascade Regulator 4 ebus - GND V C.P.M. Modulating Pump Control 6 GND V 7 Analogical input 0-10 V (*) 8 Stemp. ACC Storage tank temperature sensor 9 Config Programmable digital input: Generator enabling 10 FL Flow switch 11 INAIL Safety input (nc) 12 Common Inputs A PF PF SL PG min. min SMG SRG DK INGR. COM ON/OFF INAIL FL TA Config. Stemp. ACC INGR. ANALOG GND 0-10V - INGR. C.P.M. 0-10V E8 PLC ebus ebus + Modbus B Modbus A Y1 ALIM V ALIM. - GND ebus + ebus - GND SMG SMG Y Sw SW1 Selettore Bus 0-9 addresses indirizzi bus selector Normalmente Usually positioned posizionato on 0 for su external 0 per BCM esterna (cascade(controllore controller). di cascata). In With BCM internal interna BCM (alla (cascade caldaia boiler), di una it cascata) assumes assume other values. altri valori. (*) ANALOGICAL INPUT It is usually configured to control via EXTERNAL HEAT CONTROLLER (PLC) 0-10 V; if external HSCP-UFLY is used, you must configure input 0-10 as indicated in Chap. 3.3) 3

4 SE Y3 1 COM. Common outputs 2 P.Car. DHW Storage tank loading pump 3 P. CH Heating pump Y COMAND P. CH COMAND P. Car. DHW COM. 230 V N L P. CH P. Car. DHW Stemp ACC Y3 Y3 Y2 (-) GND Y4 1 2 P.Coll. Collector pump 3 4 ALARM Alarm output S.E. = WIRING DIAGRAM KEY (boiler booklet par. 4.5) 230 V C.P.M. (-) GND P. Mod USC ALLARM SIGNAL COMAND P. Coll. 230 V N L P. Coll. Y Y4 Y4 4

5 3 Application CASCADE MANAGER ebus communication interface with modules SHC BMM Cascade management with maximum 8 boilers Global return temperature detection Global flow temperature detection - limit temperature - differential temperature. Six ON/OFF inputs for global protection sensors: - FL minimum water flow - PG minimum gas pressure - DK minimum water pressure - PF smoke 1 obstruction - PF smoke 2 obstruction - SL water level sensor of the siphon 0-10 v CPM voltage output for modulating control of the collector pump. CONFIG. TA ON/OFF enabling input for heat generator. Relay output for fixed speed pump or to indicate the status of the boiler (request or standby) REMOTE CONTROL ebus communication interface for HCM at a higher level Modbus communication interface to integrate into an automation system in the building. Voltage interface input with commercial heating controller. Relay contact output to indicate a boiler alarm. ON/OFF input to reset alarm DHW MANAGEMENT S.temp ACC DHW storage tank temperature sensor DHW output relay P.Car CONTROL for storage tank loading pump CH MANAGEMENT ON/OFF input for CH request P.CH relay output CONTROL for direct flow Manual Emergency Request for SET POINT temperature, by inserting a resistance at the indicated value. 5

6 3.1 - Programming operating parameters ATTENTION! Function reserved for After Sale Service Centers only. 3 Device management SELECTION 1 SELECTION Select using knob C and press A, to access the technical program of each device (requested password 0000). 4 SELECTION Using knob C, select symbol. Press A. Wait for scanning 2 Device management SELECTION Use knob C to select the parameter Press A (selec), 5 EDIT The screen displays the status and active system sections: ( - = not active / 1 active) HCM (Check the BCM cascade) SHC (optional multifunction module BMM (burner management board) Select the module using knob C and confirm by pressing A. Turn knob C to edit the value Press A (save), 6

7 3.2 - BCM (HSC) parameters - General settings / HSCP-UFLY user settings Code Symbol Value Description Default settings 803 Srv Enabled services BCM user settings with HSCP-UFLY 19 CH heating + Antifreeze Antifreeze 27 DHW + Antifreeze 1 Boiler control (reading only) 16 Disabled rp K Temp. Max Differential 0 Disabled Maximum Δ temperature ( C x 10) HY K Burner Hysteresis ( C x 10) 5 = 31 HL C CH#1: Burner Minimum Set-point = 39 HH C CH#2: Burner Maximum Set-point = 799 AC Analogical input function 0/10 V: 0 Manual adjustment target temperature 1 External temperature sensor / 10 V Target temperature control / 10 V Modulation control 376 DI1 Programmable Input #1 0 Enabling CH Heating Service 0 1 Enabling heat generator 1 2 Reset alarms 322 Po min Pump: Post-circulation PL V Minimum output pump modulation burner level V x Pr V Maximum output pump modulation burner level V x CHP % Heating: Maximum modulation POT K Gen: Err. Max. Parallel 0/ POL % Gen: Mod. Max. Parallel dl C DHW: Minimum Set-point dh C DHW: Maximum Set-point

8 Code Symbol Value Description Default settings BCM user settings with HSCP-UFLY 360 dt Storage Tank Adjustment drt K DHW: Temp. Requested Differential drh K DHW: Requested Temp. Hysteresis dpt sec. DHW Pump: Post-circulation dbt C DHW: Temp. Maximum Boiler ChSet C CH#1: Set-point ChPO CH#1: Parallel Supply cu.m. % Burner modulation minimum % (*) minimum modulation that determines the burner's switching off, only with cascade management (*) 600 mb Burners: Min. Inserted FL % Minimum Modulation BSt sec. Gen: Insertion Time BRt sec. Gen: Removal Time HS C/min Temperature Gradient HP K CH PID: Proportional HI K CH PID: Integrative Hd K CH PID: Derivative MI Modbus Address MT sec. Modbus Time-out TU Unit temperature C / F 8

9 Code Symbol Value Description Default settings BCM user settings with HSCP-UFLY St Application Code 0 Burners cascade (MODULEX)? 1 Single burners VA1 Programmable Relay #1 0 Main pump control 0 1 Boiler status 369 VA2 Programmable Relay #2 0 activated only if the fault prevents 0 inputting the requested number burner correctly. 1 Activated from each boiler failure 771 PS Water Pressure Sensor 0 Not enabled 0 1 Enabled 768 LG Min. Gas Min Gas Pressure 0 Not enabled 0 1 Enabled 793 COC Chimney Obstruction Sensor 0 Not enabled 0 1 CO 2 CO and COL 622 FS Minimum Flow Sensor 0 7 Bit map 0 1 Enabled Flow Sensor / Global Fault 3 Enabled Flow Sensor / Local Fault 5 Enabled Flow Sensor / Global Fault and check Flow Switch fault 7 Enabled Flow Sensor / Local Fault and check Flow Switch fault Software Code (read only) Software Revision (read only) 9

10 3.3 - BCM (HSC) parameters - General settings / HSCP-UFLY user settings The BCM received is factory set to control via 0-10V temperature. (Control via EX- TERNAL HEAT CONTROLLER 0-10 V). To enable 0-10 V request, you must close the contact between pin 12 and pin 9 with a jumper or with a control from external heat controller together with Also jump pin 12 and 11 (ISPESL input alarm) or use it to manage the system's safety devices. With an open contact, all generators are switched off with the alarm signal. If BCM is coulple with HSCP or UFLY, you must edit the following parameters (Chap.3.1) Connecting a storage tank probe, Stemp ACC,, the 803 Srv parameter automatically takes on the value 27 and system reconfiguration is requested on HSCP or UFLY (saving the new configuration). Code Symbol Value Description Default settings 803 Srv Enabled services BCM user settings with HSCP-UFLY 19 CH heating + Antifreeze Antifreeze 27 DHW + Antifreeze 1 Boiler control (reading only) 16 Disabled AC Analogical input function 0/10 V: 0 Manual adjustment target temperature 1 External temperature sensor / 10 V Target temperature control / 10 V Modulation control 376 DI1 Programmable Input #1 0 Enabling CH Heating Service 0 1 Enabling heat generator 1 2 Reset alarms 10

11 3.4 - Error code When the boiler detects a fault, the alarm symbol is displayed on the screen with the relative error code and description. You can reset the boiler by pressing A from HSCP, or by pressing RESET from BCM. CODE DESCRIPTION detected on BCM (HSC) 9 EXTERNAL PROBE (SE) Enabled but not connected Effect: No OTC 13 DOMESTIC HOT WATER SEN- SOR (S.acc DHW) DHW sensor fault Effect: DHW service not active 39 Damaged user parameters due to electromagnetic interferences. Effect: none 56 the remote control HSCP is connected by not detected. GAS PRESSURE SWITCH 02 Insufficient gas pressure if LG parameter = 1 Effect: stop BMM board not detected 57 Effect: stop 29 WATER IN THE COMBUSTION CHAMBER Effect: stop SOLUTIONS RESET: MANUAL/AUTO Check the efficiency of the sensor (see table Res/Temp) or its connections. It is possible to activate burner ignition from the BCM manual request button (A) The ignition procedure is inhibited until gas pressure reaches the correct values. Check electrical connections BMM and e-bus 11

12 18 Flow-return t maximum pressure Effect: Stop burner, Pump on at maximum speed. 19 Flow overtemperature. It is activated when the flow temperature is > 95. Resetting is automatically carried out when the temperature is < 80. Effect: Stop burner, Pump on at maximum speed. 14 RETURN PROBE Auxiliary (SRG) sensor interrupted 40 MINIMUM WATER FLOW (DK) The main water flow is not detected by DK within 20 after activating the pump. It is enabled if the parameter FS = 1, 2 or 3.. If FS.1 = 0, Effect: Stop burner 73 NO WATER PRESSURE SWITCH The fault is only checked if parameter FS 2 = 1. It is detected if input DK is active for more that 20 after disabling the pump. Effect: Stop burner 08 WATER DEFICIENCY Insufficient water pressure and consequent intervention of the minimum water pressure - pressure switch (DK). Effect: Stop burner 17 EXCHANGER HEAT EXCHANGER Exchanger freezing is detected If the heating sensor detects a temperature below 2 C, burner ignition is inhibited until the sensor detects a temperature above 5 C. Effect: Stop burner Pump active for 5' at maximum speed to obtain heat from the system. 58 Flow sensor SGM effect: Burner OFF. Check circulation, check installation Circulation control Check the wiring, if needed, replace the auxiliary sensor Check circulation, check installation Check circulation, check installation It is detected only if more than 1 BMM is connected (cascade application) 12

13 28 CLOGGED OUTLETS It is detected from the CO sensor if the COC = 1 or 2 parameter is enabled. If COC = 2, the COL sensor is controlled to detect chimney obstruction with low air intake conditions. It is only controlled when 1 burner is on. If there are no chimney obstructions, the code is automatically cancelled after 10'. Effect: burner off. 93 SAFETY PROTECTION: INAIL safety parts intervention, or if there is no open jumper (Y2-11/12) Effect: Stop burner and stop pump 30 Damaged service parameters due to electromagnetic interferences. Effect: Inhibited burner ignition 38 Damaged default parameters due to electromagnetic interferences. Effect: Inhibited burner ignition 37 PARAMETERS MEMORY DEFECTIVE Effect: Inhibited burner ignition RESET: MANUAL Check the Chimneys / Check the trap. RESET: MANUAL (after releasing each individual safety device). RESET: MANUAL RESET: MANUAL RESET: MANUAL 13

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16 a edizione 05/15 AG S.p.A casteldario - mantova - Italy - tel telefax info@unical-ag.com - export@unical-ag.com - Unical shall not be held liable for any inaccuracies due to transcription or printing errors. Furthermore, it reserves the right to modify its products as deemed necessary or useful, without affecting their essential features.