Condensate Siphon; Condensate Connection - Viessmann Vitocrossal 300 CU3A 26 Installation Instructions Manual

Floor mounted, gas-fired condensing boiler with matrix gas burner and lambda pro control
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Boiler Connections

Condensate Siphon

Legend
A Retaining nut
B Gasket
C Siphon

Condensate Connection

Legend
A Condensate drain (must be able to be inspected)
22
Vitocrossal 300 CU3A 26 to 199 Installation
1. Remove the condensate siphon from the boiler.
2. Fill the siphon with water and reinstall onto the boiler.
The Vitocrossal 300 CU3A boiler comes with a built-in
condensate trap. An external trap is not required when
connecting the field drain to the P-trap. Discharge tubing
(field supplied) must be ¾ in. diameter. Use CPVC, PVC
or other material approved by code listed below.
The drain pipe and fittings must conform to ANSI
standards and ASTM D1785 or D2846. CPVC or PVC
cement and primer must conform to ASTM D2564 or
F493. In Canada use CSA or ULC listed schedule 40
CPVC or PVC drain pipe, fittings and cement.

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