Page 16 of 30 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 PR1 04/08/2014
Application Guide
2.7. AIR VENTING OF THE HEATING SYSTEM
The AM Series units come standard with automatic air vents on each of the headers on the rear of the
unit (see Figure 6a and 6b). These vents are for the unit only and not the entire heating system. An
effective air vent for air removal for the entire heating system must be installed in the highest point of
the system piping.
Figure 6a: AM 399/500 Rear Panel Connections
VENTS
TEMPERATURE
SAFETY RELIEF VALVE
WATER SUPPLY
(OUTLET) CONNECTION
WATER RETURN
(INLET) CONNECTION
DRAINING VALVES
PRESSURE AND
TEMPERATURE GAUGE
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