6 Electric flame monitoring and control units
2-82
 
Burner control units BCU 400
Type code
BCU Burner control unit
4 Series 400
40 Basic version
60 Standard version
65 Extended air control
80 Version for pilot and main burners
-3 1st safety time on start-up: 3 s
-5 1st safety time on start-up: 5 s
-10 1st safety time on start-up: 10 s
/3 2nd safety time on start-up: 3 s
/5 2nd safety time on start-up: 5 s
/1 Safety time operation: 1 s
/2 Safety time operation: 2 s
L Air valve control
R Mains voltage 115 V AC, 50/60 Hz, for grounded and ungrounded mains
W Mains voltage 230 V AC, 50/60 Hz, for grounded and ungrounded mains
1 Ignition transformer TZI 5-15/100
2 Ignition transformer TZI 7-25/20
3 Ignition transformer TZI 7,5-12/100
8 Ignition transformer TZI 7,5-20/33
GB Front film in English with additional stickers in D, F, I, NL, E
P Integrated industrial chassis plug, 16-pin*
D2/D3 Digital input for high temperature operation
S2-4 Number of start-up attempts, burner/pilot
/2-4 Number of start-up attempts, main burner
A Air flow monitoring
U Configured and prepared for UVD 1
C With circuit board for signal distribution
B1 PROFIBUS DP interface
/1 Integrated Variosub PROFIBUS DP chassis socket, 9-pin**
E1 Voltage for valves and ignition transformer via L1
For controlling, igniting and monitoring impulse-controlled, modulating-controlled or
stage-controlled gas burners, for continuous operation (in conjunction with UV sensor
UVS, only intermittent operation available).
The burner control unit BCU® unites the functionally interrelated components of automatic burner control unit, ignition transformer, Automatic/Manual mode changeover
switch and display of operating and fault statuses in a compact metal housing. It is used
near the burner to be monitored. Display of the program status, unit parameters and
flame signal. Diagnosis and adjustment of unit parameters via an optical interface, BCU
460/465/480 with Manual mode, BCU..L with air valve control, BCU..B1/1 with PROFIBUS DP interface, BCU 46x/480..D2/D3 with digital input for high temperature operation, can be programmed according to customer requirements, EU certified, AGA, FM,
CSA and EAC approved, certified for systems up to SIL 3 (compliant with PL e).
Designation Order no.
For directly ignited burners of unlimited capacity
BCU 460-3/1W1GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610893
BCU 460-3/1W3GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610894
BCU 460-5/1W1GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610895
BCU 460-5/1W3GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610896
For directly ignited burners of unlimited capacity, with
air valve control
BCU 460-3/1LW1GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610897
BCU 460-3/1LW3GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610898
BCU 460-5/1LW1GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610899
BCU 460-5/1LW3GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610900
With extended air control
BCU 465-3/1LW1GBACE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610901
BCU 465-3/1LW3GBACE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610902
BCU 465-5/1LW1GBACE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610903
BCU 465-5/1LW3GBACE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610904
For pilot and main burners of unlimited capacity, both
burners can be monitored independently, with air valve
control
BCU 480-5/3/1LW1GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610905
BCU 480-5/3/1LW3GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610906
BCU 480-10/3/1LW1GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610907
BCU 480-10/3/1LW3GBE1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88610908
BCU 400 Technical
Information BCU 4
6 Electric flame monitoring and control units
2-83
Designation Order no.