AERCO Innovation (G-14-2265 and above) - Manual (Page 29)

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 2 – INSTALLATION
OMM-0078_0L
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 29 of
206
GF-128
Phone: 800-526-0288
PRI: 11/25/2014
For electrical power wiring diagrams, see the AERCO Innovation Electrical Power Wiring Guide,
(GF-5060).
Figure 2-10. AC Terminal Block Configurations
2.12 FIELD CONTROL WIRING
Each unit is fully wired from the factory with an internal operating control system. No field control
wiring is required for normal operation. However, the C-More control system used with all
Innovation Heaters does allow for some control and monitoring features. Wiring connections for
these features are made in the Input/Output (I/O) Box. The I/O Box is located on the upper-left
portion of the unit front panel (Figure 2-11) behind the removable front panel door. To access
the I/O Box terminal strips shown in Figure 2-11, loosen the four cover screws and remove the
cover. All field wiring is installed from the rear of the panel by routing the wires through one of
the four bushings provided.
Figure 2-11. Input/Output (I/O) Box Location – Partial Front View
Refer to the wiring diagram provided on the cover of the I/O Box (Figure 2-12) when making all
wiring connections.
Since identical I/O Boxes are used with both AERCO gas-fired boilers and water heaters, some
of the input and output connections apply only to boilers while others are common to both
boilers and heaters. These I/O Box connections are noted in the sections below.
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.