DATA RANGE
Supply Voltage 100-120V @ 50-60 Hz
Operating temperature range -20°C +70°C
Ambient humidity 95% max at 40°C
Protection degree IP 00
Waiting/prepurge time (TW/TP) 1 … 120 s
Safety time (TS) - GAS versions: TGRD6x – TGRD8x: 3 … 120 s
Spark ignition time (TSP) 11 s
< 1 s
Recycle attempts 1 … 10
Maximum Power Consumption @230Vac 15VA
Minimum ionization current 0.5 µA
On request 0.15 µA
Recommended minimum ionization current times
3 - 5 times
J3
J4
J2
J1
16 17 18 19 20
EV1
TR
21
Type TGRD81
81234587910
11
+
-
12 13
RPM
T
C
W
ION
BFD
F1
RE
SB
NL
14 15
V
PA
Ignition sequence scheme
US flame control board
BRAHMA TYPE TGRD8 1 flame control board is equipped with non-volatile lock-out, which means
that a restart from the safety shutdown condition can be accomplished only by a manual reset of
the system. The main technical data is summarized in Table 27.
Table 27 Brahma technical data
Response time in case of flame failure (GAS versions)
The main connections of the flame control board are summarized in Table 28 and shown in Figure 15.
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