Benchmark Platinum-Edge [ii]: Installation Manual
SECTION 2
– INSTALLATION
OMM-
136_G • GF-210 • 8/20/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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Figure 2-11: Secondary Power Panel Terminals
Figure 2-12: I/O Board Cable Connections
2.11.1 I/O Board Connections
The I/O board contains the terminal listed below, arranged on removable, named connector
strips J3 through J7 and J14, plus Molex connectors for unit harnesses. The maximum gauge
of wires connecting to the I/O board is 14.
J24
SPARK MONITOR
FROM SHELL
HARNESS 63216-2
CONNECTOR J9
I/O BOARD POWER
HARNESS 63232
CONNECTOR J24
VALVE HARNESS
INTERLOCK FROM SHELL
HARNESS 63216-2
J6 PINS 3 & 4
DUAL FUEL SWITCH
HARNESS 63239
(DUAL FUEL ONLY)
CONNECTOR J10
LOW WATER CUTOFF JUMPER
CONNECTOR J8
40 PIN RIBBON I/O
HARNESS 63220
CONNECTOR J1
30 PIN RIBBON I/O HARNESS 63221
CONNECTOR J2
FLOW SENSOR
4-20mA OUT
AIR PUMP
(AIR EDUCTOR ON BMK5000 &
6000 ONLY)
BLOCKED FLUE
SWITCH
BLOWER RELAY
PUMP RELAY
OXYGEN SENSOR
12 V
Ground
J9
AC Hot
AC Neutral
Neutral
Ignition
Transformer
Current Sense
Line Voltage
Ignition Transformer
