AERCO BMK 3.0 LN Nat. Gas for Mass. only - Manual (Page 111)

APPENDIX H
H-3
CLOSURE SW ITC H
PR OOF OF
LO W G AS PRESS. SW .
BLO WER P ROO F SW .
SAFETY
IGN ITOR
WA TER L EVEL PRO BE
FLAM E ROD
HIGH GAS PRESS. SW .
PURG E
POSI TIO N
IGN ITIO N
POSIT IO N
SWIT CH
SWITCH
BLK
YEL
WHT
RED
GRN
BLU
GND 321
351
352
361
364
365
362
SHUTOFF VAL VE
SH IEL D
360
359
6 PI N CONNECT OR
FRO M
358
}
FRO M I/O BO X
142
142
{
BLO CKED AIR INLE T SW .