Honeywell krom schroeder IFD 258 - Maintenance cycles; Legend

IFD 258 · Edition 03.12l
38
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
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10 Maintenance cycles
The automatic burner control unit IFD 258 requires
little servicing.
11 Legend
Symbol
Description
88
Display
88
Blinking display
Safety interlocks (Limits)
Start-up signal
Ignition transformer
Gas valve
Flame signal
Operating signal/RUN
Fault signal
Reset/Information
Input signal
Output signal
Z
Ignition/High voltage
I
ionization
Input/Output safety circuit
t
W
Waiting time
t
LV
Flame simulation delay time
t
Z
Ignition time
t
SA
Safety time on start-up (3, 5 or 10 s)
t
SB
Safety time during operation (< 1 s or < 2 s)