7 Commissioning
7.1
Checklist before commissioning
7.1.1
Preparing the boiler for commissioning
Procedure to prepare the boiler for commissioning
1. Check the gas circuit.
2. Check the hydraulic circuit.
3. Check the water pressure in the central heating installation.
4. Check the electrical connections of the thermostat and the other ex
ternal connections.
5. Check the other connections.
6. Test the boiler at full load. Check the setting of the gas/air ratio.
7. Test the boiler at part load. Check the setting of the gas/air ratio.
8. Final activities.
Important
Complete the checklist.
7.1.2
Gas circuit
Warning
Ensure that the boiler is disconnected from the power supply.
1. Open the main gas tap.
2. Open the gas tap under the boiler.
3. Check the gas inlet pressure at the measuring point on the gas pipe.
Warning
For authorized gas pressures, see: Unit categories, page 12
4. Vent the gas supply pipe by unscrewing the measuring point.
5. Tighten the measuring point again when the pipe has been fully ven
ted.
6. Check all connections for gas tightness. The test pressure may be a
maximum of 60 mbar.
7.1.3
Hydraulic circuit
1. Check the siphon; it should be fully filled with clean water.
2. Check the water-side connections for tightness.
7.1.4
Electrical connections
1. Check the electrical connections.
7.2
Commissioning procedure
Warning
Initial commissioning must be done by a qualified professional.
If adapting to another type of gas, e.g. propane, the boiler must
be adjusted before switching it on.
1. Open the main gas tap.
2. Open the gas tap under the boiler.
3. Switch the power on with the boiler's on/off switch.
Fig.39
Gas measuring point
AD-0000121-01
7 Commissioning
40
7625116 - v.04 - 17012017
