AERCO X500 – Inhibited Antifreeze - Manual (Page 3)

Sentinel Product Dosing Information
Technical Instruction Document
TID-0025_0B
10/16/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Page 3 of 4
X500 – Inhibited Antifreeze
APPLICATION:
Sentinel X500 is a multipurpose inhibited antifreeze formulated to help control corrosion,
scale, boiler noise and hydrogen gassing in all types of indirect heating systems. It is suitable for use with
all commonly encountered metals and alloys, including aluminum.
USER INSTRUCTIONS:
The dosage of Sentinel X500 will depend on the level of frost protection
required. A dosage of 20% will prevent freezing down to 20°F; 30% will protect down to 9°F; and 35% will
protect down to 3°F. Further information is available on request. A dosage of 20% (ie 5 Gallon of Sentinel
X500 added to a system having a typical volume of 25 Gallons) or more is needed to achieve the
minimum concentration of corrosion and scale inhibitor. For best results, it is recommended that systems
are cleaned and flushed using a suitable Sentinel cleaning product - see the AERCO website for
guidance (www.aerco.com). If the system is already noisy due to limescale deposits in the heat
exchanger, Sentinel X200 should be added together with Sentinel X500.
DOSING INSTRUCTIONS
: Open vented Systems: Dose via the expansion header tank, via a by-pass
feeder or use a dosing bottle. Sealed Systems: If the system is empty, add to any convenient point before
filling. If full, use a dosing bottle to inject via the filling loop or other access point.
LEAVE IN SYSTEM DO NOT ADD TO PRIMATIC SYSTEMS
The product is not suitable for heat transfer circuits of solar energy collector panels in which
temperatures may exceed 390°F or be subject to periods of stagnation.