AERCO Modulex EXT 1530 - 3060 - Manual (Page 35)

MODULEX EXT 1530, 1912, 2295, 2677, 3060 BOILERS
Installation, Operation & Maintenance Manual
3.16.3 Lime Scale and Corrosive Water Damage Warning
Any damage caused to the boiler due to the formation of lime scale or by corrosive water
will not be covered by the warranty. Appropriate steps must be taken to ensure the indirect
tank water heater does not become plugged by scale caused by hard water or sediment. If
the indirect tank water heater becomes plugged by either scaling from hard water or
sediment it is not the responsibility of AERCO International.
3.16.4 Connection to Refrigeration System Warning
The boiler, when used in connection with a refrigeration system, must be installed so the
chilled medium is piped in parallel with the boiler with appropriate valves to prevent the
chilled medium from entering the boiler.
The boiler piping system of a hot water boiler connected to heating coils located in air
Handling units where they may be exposed to refrigerated air circulation must be equipped
with flow control valves or other automatic means to prevent gravity circulation of the boiler
water during the cooling cycle.
3.17 Optional Air Intake Connection
Install air intake connector as shown in Figure 3-10. Use silicone to lubricate the internal surface of
the seals before assembling. For air intake connection piping use only:
• 10” for Modulex EXT 1530, 1912
• 12” for Modulex EXT 2295, 2677, 3060
The Air Intake Connector that ships with the unit is for spiral ducts only. For other materials,
please contact AERCO directly.
Figure 3-10: MODULEX EXT Air Intake Connection
3.18 Flue Manifold Installation
To assemble the flue manifold to the boiler flue exhaust opening, retrieve the ten (10) nuts and
washers from the plastic bag, shipped with the boiler, and affix to the boiler opening per Figure 3-
11. The Manifold may be installed on left, front, or rear. If switching to left or rear positions,
unused outlet should be covered with the plate and gasket removed from outlet being used.
AIR INTAKE
CONNECTOR
(SUPPLIED)
AIR INTAKE
PIPING
(NOT SUPPLIED)
OMM-0095_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 35 of 138
GF-139 Phone: 800-526-0288 12/01/14