Owner manual

Benchmark 1500DF - 2000DF Boilers
CHAPTER 2 – INSTALLATION
OMM-0098_0A AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 27 of 196
GF-144 Ph.: 800-526-0288 04/01/2014
Figure 2-11: Input/Output (I/O) Box Location
NOTE
Use Figure 2-12 to determine the functions of the I/O PCB
connections. Do not use the silkscreened labels on the PCB itself,
as these may not match the function names.
There is a diagram of the connection functions on the cover of the
I/O Box as well.
DO NOT make any connections to the I/O Box terminals labeled
“NOT USED”. Attempting to do so may cause equipment damage.
CAUTION
I/O PCB
BOARD
TERMINAL STRIPS