DeDietrich G25 Manual de Serviço descarregar pdf (Página 36)

DTG(E)130 - 35/45/65/90/115 Eco.NOxPlus 15/02/2011 - 300014279-001-J

9. Commissioning

9 Commissioning



Initial commissioning must be done by a qualified

professional.

Before start-up, the heating installation must be completely emptied

and rinsed.

Operation while the condensation water siphon is empty may

damage the boiler.

9.1 Filling the system

` Fill the installation with water.

` Vent the heating installation.

` Fill the siphon with water.

` Check the pressure of the installation (Minimum pressure 0.8

bar; Recommended pressure 1.5 bar; Maximum pressure 4

bar).

` Carry out a water tightness check.

` Top up with more water if necessary.

9.2 Check points before commissioning



For Belgium: Any work on the gas valve unit is authorised

only if carried out by a qualified professional.

9.2.1 Checking the gas supply pressure

1. Close the gas valve.

2. Loosen the screw on the measurement connection by 2 turn

(Marker



3. Connect the manometer.

4. Open the gas valve.

5. Check the pressure of the gas connection on the measurement

connection. The boiler is preset in the factory to operate on

natural gas.



If the pressure exceeds the authorised pressure range,

suspend commissioning (Authorised pressure range, see

page: 9). Inform the gas supply company.



The pressure measured on



is the supply pressure

reduced by the pressure drop of internal gas pipe.

6. Close the gas valve. Disconnect the manometer.

7. Tighten screw



8. Open the gas valve. Check the seal.

C001248

DTG... 130...

DTG (E) 35 DTG 45 DTG 65 DTG 90 DTG 115

P min

(1)

P nom

(2)

P max

(3)

P min

(1)

P nom

(2)

P max

(3)

P min

(1)

P nom

(2)

P max

(3)

P min

(1)

P nom

(2)

P max

(3)

P min

(1)

P nom

(2)

P max

(3)

Natural gas H (20 mbar)

Supply pressure 17 20 25 17 20 25 17 20 25 17 20 25 17 20 25

Pressure



16.2 19.2 24.2 15.8 18.8 23.8 14.5 17.5 22.5 13.3 16.3 21.3 13.1 16.1 21.1

Natural gas L (25 mbar)

Supply pressure 20 25 30 20 25 30 20 25 30 20 25 30 20 25 30

Pressure



18.8 23.8 28.8 18.2 23.2 28.2 16.3 21.3 27.3 14.5 19.5 24.5 14.2 19.2 24.2

Propane (37 mbar)

Supply pressure 25 37 45 25 37 45 25 37 45 25 37 45 25 37 45

Pressure



24.7 36.7 44.7 24.5 36.5 44.5 24 36 44 23.5 35.5 43.5 23.4 35.4 43.4

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 91 92

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DeDietrich G25 Manual de Serviço Página 36

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