BIC · Edition 09.22
EN-14
8 AssIstAnCe In tHe eVent oF
MALFUnCtIon
DAnGeR
Electric shocks can be fatal!
– Before working on possible live components,
ensure the unit is disconnected from the power
supply.
DAnGeR
Risk of injury!
Burner heads have sharp edges.
– Burner inspection must only be performed by
authorized trained personnel.
➔
If no issues are found when checking the burner,
proceed to the automatic burner control unit and
check for faults in accordance with the relevant
operating instructions.
? Fault
!
Cause
• Remedy
? Burner does not function.
!
Valves do not open.
• Check the voltage supply and wiring.
!
Tightness control signals a fault.
• Check the valves for tightness.
• Note the tightness control operating instruc-
tions.
!
Control valves do not move to low-fire rate posi-
tion.
• Check the impulse lines.
!
Gas inlet pressure is too low.
• Check the filter for dirt.
• Check the gas supply.
!
Air inlet pressure is too low.
• Check the fan and air supply.
!
Gas and air pressures on the burner are too low.
• Check the restrictors.
• Check/adjust the start rate setting, see operat-
ing instructions for solenoid valve.
!
Automatic burner control unit does not function
correctly.
• Check the device fuse.
• Note the automatic burner control unit operat-
ing instructions.
!
Automatic burner control unit signals a fault.
• Check the ionization cable.
• Check the ionization current. The ionization
current must be at least 5 μA – stable signal.
• Check whether the burner is adequately
grounded.
• Note the automatic burner control unit operat-
ing instructions.
!
No ignition spark is created.
• Check the ignition cable.
• Check the voltage supply and wiring.
• Check whether the burner is adequately
grounded.
• Check the electrode – see page 12 (7
!
Defective insulator on the electrode, ignition
spark jumps over incorrectly.
• Check the electrode.
? Burner performs a fault lock-out after oper-
ating faultlessly in normal operation.
!
Incorrect gas and air flow rate settings.
• Check the differential pressures for gas and air.
!
Automatic burner control unit signals a fault.
• Check the ionization cable.
• Check the ionization current. The ionization
current must be at least 5 μA – stable signal.
!
Burner head is dirty.
• Clean gas and air bore holes and air slots.
• Remove deposits.
!
Excessive pressure fluctuations in the combus-
tion chamber.
• Ask Honeywell Kromschröder for control
concepts.
9 ACCessoRIes
9.1 Ceramic paste
For avoiding cold-setting on screw connec-
tions after replacing burner components.
Order No.: 050120009.
9.2 Adapter set
8×
8×
BIC 125 –140
BIC 50 –100
BICA 65
For connecting, burners BIC, BICA to NPT/ANSI con-
nections.
Burner Adapt-
er set
Gas
connec-
tion
Air
connec-
tion
order
no.
BIC 50
BR 50
NPT
½"–14
NPT
1½"–11.5
NPT
74922630
BIC 65
BR 65
NPT
¾"–14
NPT
1½"–11.5
NPT
74922631
BICA
65*
–
½"–14
NPT
Ø 1.89" 75456281
BIC 80
BR 80
NPT
¾"–14
NPT
2"–11.5
NPT
74922632
BIC 100 BR 100
NPT
1"–11.5
NPT
2"–11.5
NPT
74922633
BIC 125 BR 125
NPT
1½"–11.5
NPT
Ø 2.94" 74922634
BIC 140 BR 140
NPT
1½"–11.5
NPT
Ø 3.57" 74922635
* An NPT thread adapter is required for connection to the
gas circuit only.
Adapted set for BICW on request.
