Vent Starter Pieces - Watts AERCO MLX EXT 321 Installation, Operation & Maintenance Manual

Modulex Light Commericial Series
CHAPTER 4: Installation Instructions

4.22 VENT STARTER PIECES

Table 4-3 lists the vent starter pieces. See Figure 4-26 for an illustration of a fully assembled kit.
PVC starter pieces are included with every unit. Stainless steel and polypropylene vent starter
pieces are available from AERCO if the venting is purchased through aerco.ventquote.com. If
the venting is purchased from a different supplier, the vent starter piece must also be purchased
from that supplier.
TABLE 4-3: Starter Pieces
BOILER MODELS
EXT 321 – EXT 481
EXT 600 – EXT 1123
Port with Plug for Cleaning & Inspection
Figure 4-25: Flue Exhaust Diameter Reduction Adaptor Kit and Parts
OMM-0087_J • GF-143 • 11/17/2020
DIAMETER MATERIAL
Stainless Steel
4" Diameter
Polypropylene
PVC
Stainless Steel
6" Diameter
Polypropylene
PVC
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
KIT PART NUMBER
Contact vent supplier directly
Contact vent supplier directly
P/N 49051 (included)
Contact vent supplier directly
Contact vent supplier directly
P/N 49050 (included)
PVC Vent Starter Kit
(Plu)
European to
American
Standard
Flue Adapter
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