Connections Boiler Connections; Proper Piping Practice; Gas Connection And Piping - Viessmann Vitodens 100-W WB1B Series Installation And Service Instructions Manual

Connections
Boiler Connections

Proper piping practice

2 imperfect threads

Gas connection and piping

Legend
A Water supply connection
B Condensate drain connection
C Gas connection
D Water return connection
18
(continued)
Use moderate amount of dope
Leave 2 threads bare
Vitodens 100-W, WB1B Installation & Service
Support piping by proper suspension method.
Piping must not rest on or be supported by boiler.
1. Make gas connection in accordance with codes
CAN/CSA B149.1 or 2 in Canada. In the United
States, use the National Fuel Gas Code ANSI Z223.1/
NFPA 54, as well as local codes where applicable.
2. Close gas shutoff valve on boiler.
3. Perform leak test.
4. Bleed air from gas supply pipe.
See following page for details on gas connection and piping.