![background image](http://html1.mh-extra.com/html/watts/aerco-inn-1060n/aerco-inn-1060n_installation-operation-and-maintenance-manual_877211028.webp)
Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 2
– INSTALLATION
OMM-0143_A
• GF
-216
•
9/6/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 28 of 170
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 Edge Controller used with all Innovation
water 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 to the left of the
Con
troller’s front panel (Figure 2.12-1) behind the removable front panel door. To access the I/O
Box terminal strips shown in Figure 2.12-2, 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 2.12-1: Input/Output (I/O) Box Location
– Partial Front View
Refer to the wiring diagram provided on the cover of the I/O Box (Figure 2.12-2) 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 2.12-2 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.
CAUTION!
DO NOT make any connections to the I/O
Box terminals labeled “NOT USED”. Attempting to
do so may cause equipment damage.