AERCO Modulex EXT 1530 - 3060 - Manual (Page 33)

MODULEX EXT 1530, 1912, 2295, 2677, 3060 BOILERS
Installation, Operation & Maintenance Manual
In order to avoid ice formation while the boiler is operating, which can cause the boiler to stop
functioning, the entire condensate evacuation system must be well insulated. Note that it is
forbidden to evacuate the condensate through an open gutter to prevent the risk of ice forming
and avoid exposure of the corrosive condensate to the external environment.
The condensate must be neutralized before being evacuated to the sewer, which can be
achieved by mixing the condensate with lime or with drain water coming from washing
machines, dish washing machines, etc., which normally has a base pH.
The connection to the sewer will be through a closed, but visible drain. Given the high acidity
(pH 3 to 5) of the condensate, only plastic material may be used for the condensate evacuation
pipes. Moreover it must be dimensioned and constructed so as to allow the correct out-flow to
the drain, preventing any bottleneck and any leakage.
Consult local codes regarding condensate neutralization. Neutralization may be obtained by
mixing it with the buildings drain water or with limestone, which normally has a base pH.
AERCO International offers a condensate neutralizing kit and a neutalizing tank, for preparing
condensate waste for safe evacuation into a sewer system, if other means of neutralizing the
waste are not available.
Figure 3-9: MODULEX EXT Condensate Piping
The outlet of the condensate drain pipe exits from the right side of the boiler, just below the
RIGHT-SIDE flue outlet opening.
IMPORTANT NOTE
If it is not possible to use a 4’’ (101mm) base or housekeeping pad
on which to place the boiler, install the boiler on the floor and
provide a well or trough (minimum of 4’’ - 101 mm deep) in which to
lodge the U of the condensate piping. See Figure 3-9.
WARNING!
• Before commissioning the boiler, fill the condensate siphon with
water, at the dedicated filling-up plug. See Figure 3-9.
• Do not install the condensate drain where freezing may occur.
Use materials approved by the authority having jurisdiction in your area. In the absence of such
authority, PVC and CPVC pipe must comply with ASTM D1785, F441 or D2665. Cement and
primer must comply with ASTM D2564 or F493. For Canada, use ULC certified PVC or CPVC
pipe, fittings and cement. Periodic cleaning of the condensate disposal system must be
carried out.
OMM-0095_0E AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 33 of 138
GF-139 Phone: 800-526-0288 12/01/14