Chapter 2
Innovation Series Water Heaters
GF-128
Installation
USER MANUAL
OMM-0079_0B
07/21/11 AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
•
Ph: 800-526-0288
Page
21
of
200
2.11 AC ELECTRICAL POWER WIRING
The AERCO Innovation Electrical Power Wiring Guide, GF-5060 (see Appendix L), must be consulted
prior to connecting any AC power wiring to the unit. External AC power connections are made to the unit
inside the Power Box on the front panel of the unit. Remove the front door of the unit to access the Power
Box mounted directly above the Control Box. Loosen the four Power Box cover screws and remove cover
to access the AC terminal connections inside the Power Box (Figure 2-9).
Figure 2-9. Power Box With Cover Removed
NOTE
All electrical conduit and hardware must be installed so that it does not interfere with the
removal of any unit covers, inhibit service/maintenance, or prevent access between the
unit and walls or another unit.
2.11.1 Electrical Power Requirements
The AERCO Innovation Heater accepts 120 VAC, single-phase, 60 Hz @ 20A. The Power Box contains a
terminal block as shown in Figure 2-8. In addition, a wiring diagram showing the required AC power
connections is provided on the front cover of the Power Box.
Each unit must be connected to a dedicated electrical circuit. NO OTHER DEVICES SHOULD BE ON
THE SAME ELECTRICAL CIRCUIT AS THE HEATER.
A double-pole switch must be installed on the electrical supply line in an easily accessible location to
quickly and safely disconnect electrical service. DO NOT attach the switch to sheet metal enclosures of
the unit.
After placing the unit in service, the ignition safety shutoff device must be tested. If an external electrical
power source is used, the installed boiler must be electrically bonded to ground in accordance with the
requirements of the authority having jurisdiction. In the absence of such requirements, the installation
shall conform to National Electrical Code (NEC), ANSI/NFPA 70 and/or the Canadian Electrical Code
(CEC) Part I, CSA C22.1 Electrical Code.
For electrical power wiring diagrams, see the AERCO Innovation Electrical Power Wiring Guide, (GF-
5060).
