MARMON ANGELO PO COMBISTAR BX User manual

1
Rev. 0

Copyright by Servizio Clienti ANGELO PO Spa
2
CONTENTS
1. COMMERCIAL MODEL NUMBER.............................................................5
1.1. Product range identification....................................................................................5
1.2. BX Models table.....................................................................................................6
1.3. BX Power (FX-BX 2018)........................................................................................6
1.4. Connection diagram electric and gas.....................................................................7
1.5. Water characteristics .............................................................................................9
2. FUNCTIONAL DIAGRAM COMBI OVEN.................................................10
2.1. Open valve operation...........................................................................................11
2.2. Closed valve operation ........................................................................................12
2.3. Drain cooldown / steam condensing operation.....................................................14
2.4. Steam producing operation (injectors code).........................................................15
3. ELECTRONIC BOARDS, FUSES, OVERLOAD RELAYS.......................16
3.1. Electronic boards BX ...........................................................................................16
3.2. Alarm recording MY2016 and BXW models.........................................................24
3.3. Explanation table .................................................................................................24
3.4. Reset parameters BX board.................................................................................25
3.5. BX fuses description (non BX-W).........................................................................25
3.5.1. Power board:..............................................................................................................25
3.5.2. Wiring:........................................................................................................................25
3.6. BX W fuses description........................................................................................26
3.6.1. Power board...............................................................................................................26
3.6.2. Wiring .........................................................................................................................26
3.7. Electric ovens motor overload relays table...........................................................27
3.8. Gas ovens motor overload relays table................................................................27
3.9. Service Communication 2017_03 of 17/07/2017..................................................28
4. GAS SYSTEM - OPERATE TEST ADJUST INSTALL REPORT ............30
4.1. System operation.................................................................................................30
4.1.1. Premixed system general principles..........................................................................30
4.1.2. Power schemes..........................................................................................................31
4.1.3. General functional diagram........................................................................................33
4.2. System components ............................................................................................34
4.2.1. Gas valve...................................................................................................................36

Copyright by Servizio Clienti ANGELO PO Spa
3
4.2.2. Mixer...........................................................................................................................38
4.2.3. Blower ........................................................................................................................40
4.2.4. Blower (FX/BX 2018).................................................................................................41
4.2.5. Combustion control board..........................................................................................42
4.2.6. Combustion Control Board (FX/BX2018)..................................................................44
4.2.7. Spark generator .........................................................................................................47
4.2.8. Spark plug and Flame detector..................................................................................48
4.2.9. Burner: standard and FX/BX2018 .............................................................................49
4.2.10. Heat exchanger..........................................................................................................50
4.2.11. Exhaust extraction KIT...............................................................................................51
4.3. Combustion control board: logic operation...........................................................52
4.3.1. Ignition standard cycle...............................................................................................54
4.3.2. Standard ignition cycle (FX2018) ..............................................................................55
4.3.3. GAS alarm: E12:F4: flame missing ...........................................................................56
4.3.4. Gas alarm E12:F4: flame missing (FX/BX2018).......................................................57
4.4. Gas Test..............................................................................................................58
4.4.1. Polarity check.............................................................................................................58
4.4.2. Gas conversion..........................................................................................................58
4.4.3. Gas valve adjustment ................................................................................................60
4.4.4. Analysis of the Combustion values............................................................................61
4.4.5. Setup Gas –Wizard...................................................................................................63
4.4.6. Recommended combustion values ...........................................................................67
4.4.7. Recommended combustion values (FX/BX 2018)....................................................69
4.4.8. Gas board parameters...............................................................................................71
4.5. Problems during the test setup wizard .................................................................73
4.6. Installation report .................................................................................................74
4.7. Gas alarms ..........................................................................................................76
4.7.1. Combustion gas periodic inspection..........................................................................78
5. WASHING CYCLES..................................................................................79
5.1. Washing circuit operating and components of BXW.............................................79
5.1.1. Functional Diagram of Washing circuit......................................................................82
5.1.2. Clean test...................................................................................................................85
5.1.3. Recommended procedure.........................................................................................87
5.1.4. Washing interruption..................................................................................................88
5.1.5. Washing alarms table ................................................................................................89
5.1.6. Washing consumption table.......................................................................................92

Copyright by Servizio Clienti ANGELO PO Spa
4
5.2. Components and functioning of BX washing system 1st and 2nd gen. ................93
5.3. Components and functioning of BX washing system MY2016..............................93
5.4. CLE and dEC Warning.........................................................................................96
6. DISMANTLE AND REASSEMBLY COMPONENTS................................97
6.1. Encoder ...............................................................................................................97
6.2. Motor ...................................................................................................................98
6.3. Door micro-switch................................................................................................99
6.4. Door glass frame disassembly...........................................................................100
6.5. Component compartment cooling system ..........................................................101
6.6. Door adjustment ................................................................................................103
6.7. Halogen bulb replacement.................................................................................104
6.7.1. New system of fixing bulb........................................................................................104
6.7.2. Bulb replacement with the new system...................................................................106
6.8. Handle replacement...........................................................................................107
6.9. Spark plug replacement.....................................................................................108
6.10. Blower fan replacement .....................................................................................109
6.11. GASKETS: Service Circular 2016_02 of 03/10/2016..........................................110
6.12. Scheduled recommended maintenance.............................................................112
7. ALARMS..................................................................................................113
7.1. Alarm Table BX standard...................................................................................113
7.2. Alarm Table BX-W.............................................................................................117

Copyright by Servizio Clienti ANGELO PO Spa
5
1. COMMERCIAL MODEL NUMBER
1.1.Product range identification

Copyright by Servizio Clienti ANGELO PO Spa
6
1.2.BX Models table
6 1/1GN
10 1/1GN
8 2/1GN
12 2/1GN
BX61E
BX101E
BX82E
BX122E
BX61ER
BX101ER
-
-
BX61EW
BX101EW
BX82EW
BX122EW
BX61EWR
BX101EWR
-
-
BX61G
BX101G
BX82G
BX122G
BX61GR
BX101GR
-
-
BX61GW
BX101GW
BX82GW
BX122GW
BX61GWR
BX101GWR
-
-
1.3.BX Power (FX-BX 2018)
POTENZA - kW
6 1/1GN
10 1/1GN
8 2/1GN
12 2/1GN
GAS
14
19.5 (20)
27
32.5 (32)
ELETTRICA
10.1
17.3
19.8
27.5

Copyright by Servizio Clienti ANGELO PO Spa
7
1.4.Connection diagram electric and gas
OVEN CONNECTION DIAGRAM (eg: BX 61 E)

Copyright by Servizio Clienti ANGELO PO Spa
8
OVEN CONNECTION DIAGRAM (eg: BX 61 G)

Copyright by Servizio Clienti ANGELO PO Spa
9
1.5.Water characteristics
The appliance must be supplied with drinking water having the characteristics shown in the
table. If these characteristics are not complied with, the appliance might suffer damage; a
water treatment device should therefore be installed.

Copyright by Servizio Clienti ANGELO PO Spa
10
2. FUNCTIONAL DIAGRAM COMBI OVEN
The system works in two distinct ways depending on whether the motorised valve is
opened or closed.
6
7
10
1
9
5
11
12
13
14
15

Copyright by Servizio Clienti ANGELO PO Spa
11
2.1.Open valve operation
The rotation of the fan creates a vacuum effect in the local area behind his disk back
where it faces the suction pipe/exhaust 5. When the butterfly valve 7 is open to this effect
a vacuum sucking air flow entering through the pipe 5. Simultaneously the moist air inside
the cooking chamber is induced to leave through the vent tube 6, aided by a flow diverter
(not shown) placed inside the chamber at the exit hole. Through the injector 12 is sprayed
water into the vent pipe - especially at high temperatures - in order to cool and condense
the flow of moist air coming out. The condensate is collected on the bottom of the pipe to
siphon 6 and conveyed through the rubber hose 14.

Copyright by Servizio Clienti ANGELO PO Spa
12
2.2.Closed valve operation
With the valve closed, the steam can’t escape from the vent pipe 6, or from the tube 5 at
least until the pressure inside the cooking chamber is not sufficient to overcome the effect
of decompression generated by the rotation of the fan (usually 1,5-2,0mBar). But when the
pressure chamber exceeds the decompression generated by the fan, the steam excess is
expelled through the tube 5. The system operates as a closed system, where the
overpressure valve (overpressure valve in the FM ovens) is dynamically replaced by the
effect of decompression generated by the fan. Even in this mode, water is sprayed by the
injector 12 in order to maintain the siphon full.
Note that, unlike than the FM, the condensate tube 14 is connected upstream of the swing
of the siphon, as with the motorised valve closed the vent pipe 6 and the drain tube 14 are
at the same pressure of the cooking chamber.

Copyright by Servizio Clienti ANGELO PO Spa
13
The two modes of operation described above are used in different modes of cooking in the
following way:
Convection cooking: means the user can determine the % the vent valve is open
according to the diagram below.
0%: vent completely open (bar on the display all red)
from 10 to 90%: the valve opens and closes in timed mode, the value shown on the
display is the % of time that remains closed.
--.--:vent completely closed (bar on the display all grey)
Combi cooking mode: the user can set the desired % of steam - the opening and closing
of the vent valve is controlled automatically by the oven, based on values detected from
the opposite humidity probe.
Steam cooking: valve remains closed.

Copyright by Servizio Clienti ANGELO PO Spa
14
2.3.Drain cooldown / steam condensing operation
The inlet water assembly 11 feeds the cooling water injector 12. The opening of the water
solenoid valve is timed based on the mode of operation (convection, combi or steam),
chamber temperature and the temperature detected by temperature sensor 9.
The inlet water assembly 11 is different depending on the levels:
BX W (with Automatic Washing)
It consists of:
- Non return valve EN1717 (for washing)
- Pressure reducer (for washing)
- Double water solenoid valve (one is for washing)
- Pressure switch on the drain cooldown line
- Pressure switch and manometer on the washing water line
Note: the water pressure adjustment should be done during a washing cycle.
BX (2nd generation and MY2016)
It consists of:
- Double water solenoid valve (one is for washing)
BX (1st generation)
It consists of:
- Single water solenoid valve (only for steam condensing/drain cooldown)

Copyright by Servizio Clienti ANGELO PO Spa
15
2.4.Steam producing operation (injectors code)
BX
1° generat.
BX
2° generat.
MY 2016
BX W

Copyright by Servizio Clienti ANGELO PO Spa
16
3. ELECTRONIC BOARDS, FUSES, OVERLOAD RELAYS
3.1.Electronic boards BX
The electronic boards system comprises:
1. CPU board (with Keyboard)
2. Power PCB
3. Combustion Control PCB (only gas model)
4. ON/OFF switch –230V AC
5. Transformer (in 230Vac –out 12Vac) –only for BXW

Copyright by Servizio Clienti ANGELO PO Spa
17
BX ovens –1st e 2nd generation and MY2016
The CPU board (1) is made up of segment displays, key illumination LEDs and keys. It is
connected to the power board (2) with 4 cables connected to PHOENIX connectors. The
CPU power supply is measured between terminals 1 and 4 (approx. 12V DC).
Communication between the boards takes place between terminals 2 and 3.
The CPU board (1) receives the signals from the oven probes (temperature probes
PT1000, etc.) and communicates with the power board through the cable connected to the
PHOENIX connectors.
The power board (2) receives the micro-door signal and controls all the components of the
oven through the appropriate relays. It communicates with the CPU board (1) as
mentioned above and with the combustion control board (3) (only for gas ovens) via an
RJ45 network cable.
If the communication between the power board and the CPU board or the comb. control
board fails, alarm E13 appears (communication error).
The management programme of the oven consists of two parts:
Firmware (FW) –it controls the operation of the oven (inputs and outputs) –it is in the
power board
Software (SW) - Contains all the functions of the user interface, programs, probe inputs,
etc... –it is in the CPU
1st
generation
2nd generation
MY2016
BXW

Copyright by Servizio Clienti ANGELO PO Spa
18
1-4: 12Vdc
RJ45
220Vac
1 –CPU board
2 –Power board
3 –Comb. Control board
4 –ON/OFF switch
1
17
18
2
3
19
4
20

Copyright by Servizio Clienti ANGELO PO Spa
19
BXW ovens
The CPU board (1) is made up of segment displays, key illumination LEDs and keys. It is
connected to the power board (2) with 2 cables connected to PHOENIX connectors. The
CPU power supply is measured between terminals 1 and 4 (approx 12V AC).
Communication between the boards is via an RJ45 type network cable.
The power board (2) receives the signals from the oven probes (temperature probes
PT1000, etc.), the micro-door signal and controls all the oven components via the
appropriate relays. It communicates with the CPU board (1) and with the Combustion
Control board (3) (only for gas ovens) via an RJ45 network cable.
If the communication between the power board and the CPU board or the comb. control
board fails, alarm E13 appears (communication error).
The management programme of the oven consists of two parts:
Firmware (FW) –it controls the operation of the oven (inputs and outputs), probe inputs
and the washing system –it is in the power board
Software (SW) - Contains all the functions of the user interface and programs –it is in the
CPU

Copyright by Servizio Clienti ANGELO PO Spa
20
1 –CPU board
2 –Power board
5 - Transformer
3 –Comb. Control Board
12Vac
RJ45
RJ45
220Vac
4 –ON/OFF switch