Bosch 520PN Applications Manual page 2

Addendum No. 1
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4 wb2stand
2 MX129C
See the following pages for: Exhibit A, Exhibit B and Exhibit C.
additional back to back vent pipe
side by side for kitchen venting
roof termination
80" vent pipe (Contractor Supplied)
40" vent pipe (Contractor Supplied)
20" vent pipe (Contractor Supplied)
90' vent elbow (Contractor Supplied)
cascade wire connection
unit stands holds 4 units back to back
4 way mixing valve
2