Air Intake Connector (Supplied) - Watts Aerco Modulex EXT Series Technical Application Manual

Modulex EXT Vent and Combustion Air Application Guide

1.4.4. Air Intake Connector (Supplied)

Air is drawn into the EXT through the air inlet on the left side of the unit (Figure 4). A connector is
included installed and ready to use for connecting the appropriate air intake piping for EXT 321–
1123/450–1100. For EXT 1530–3060/1500–3000, the combustion air intake adapter is shipped loose.
This adapter is designed for spiral ducting only. For PVC ducting, order either P/N 58115-1 or 58115-
2 as per Table 1.
FOR EXT MODELS 321 – 1123
NOTE:
See Chapter 3 for instructions for assembling the flue piping, including the exhaust manifold, Euro-to-
USA Adaptor, and Diameter Reduction Kits.
When using sealed combustion, observe the following requirements:
•
Sealed combustion is only available on the left of the unit only.
•
If using side-by-side minimum installation clearances, the center facing air inlet is not
available. See "Multi-Unit Installation Clearances (SD-A-968)" for further details.
Please note the following:
•
EXT Models 321 – 1123 are set up for PVC inlet piping.
•
EXT Models 1500 – 3060 come with an air intake adaptor for spiral ducting.
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09/25/2017
Figure 4: Air Intake Connection
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
FOR EXT MODELS 1500 – 3060
TAG-0054-0F
GF-136-V