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4. Check the gas inlet pressure at the measuring point C on the gas
valve unit.
Warning
The gas pressure that was measured at the measuring point C
must fall within the stated gas inlet pressure limits. See
Technical data, page 65
For authorised gas pressures, see: Unit categories, page 62
5. Vent the gas supply pipe by unscrewing the measuring point on the
gas valve unit.
6. Tighten the measuring point again when the pipe has been fully
vented.
7. Check all connections for gas tightness. The maximum allowable test
pressure is 60 mbar.
6.2.4
Hydraulic circuit
1. Check the siphon; it should be fully filled with clean water.
2. Check the water-side connections for tightness.
6.2.5
Electrical connections
1. Check the electrical connections.
6 Before commissioning
35