Watts AERCO Benchmark 2.0 LN Operating & Maintenance Instructions page 101

APPENDIX J
BENCHMARK CONTROL PANEL REAR VIEW
J-2
INTERLOCK HARNESS
CONNECTOR
(16 PIN)
TO INPUT/OUTPUT (I/O)
BOX
SHELL HARNESS
CONNECTOR
(19 PIN)
GAS TRAIN HARNESS
CONNECTOR
(9 PIN)
A/F VALVE HARNESS
CONNECTOR
(16 PIN)
EXT. SENSOR/COMM
HARNESS CONNECTOR
(24 PIN)
TO INPUT/OUTPUT (I/O)
BOX
SENSOR
HARNESS
CONNECTOR
(7 PIN)