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AM Series Boilers and Water Heaters
CHAPTER 5: INSTALLATION - ELECTRICAL
OMM-0100_0D
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
49
of
154
GF-146
Ph.: 800-526-0288
03/28/16
Figure 5-4: 0-10 VDC Analog Input Algorithm
5.1.4 MODBUS Interface Connections – Boilers and Water Heaters
The AM Series models 500, 750 and 1000 are factory supplied with a Communications Module
(the 399 model can be equipped with one as an option). This MODBUS interface can be
connected to drive the unit from a building management device. Refer to the AM Series
MODBUS User Manual (GF-146-MB), which is available from AERCO technical support and the
AERCO website (
www.aerco.com
).