Bedienungsanleitung Remeha Gas 3002 (Seite 29 von 36) (Holländisch)

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11. Now select the option 'Fan on?' and conﬁ rm with the

'-button. The fan will start now. Switch the fan to

maximum speed by selecting this option. Conﬁ rm with

the ' '-button. Now press the ' '-button. Select the

option 'Service settings' and conﬁ rm with the ' '-

button. Press the ' '-button. Select the option 'Pres-

sure settings'; conﬁ rm with the ' '-button.

Set the maximum differential pressure at 900 Pa,

using the ' '-button. Conﬁ rm with the ' '-button.

Now press several times the ' '-button until you reach

the menu where you can read out the air differential

pressure.

A differential pressure of min. 900 Pa has to be

reached. If not, check the dimensions of the ﬂ ue gas

discharge system. Set the maximum differential pres-

sure in the service level back at the standard level of

750 Pa. Conﬁ rm with the ' '-button. Set the minimum

differential pressure at 110 Pa for a minimum load

of 33% (minimum return water temperature then is

45°C) or at 240 Pa for minimum load of 50% (mini-

mum return water temperature is 35°C).

12. Check the opening pressure of the gas block.

Connect a pressure differential device to the measu-

ring points pG and pF (see ﬁ g. 19 for 7 and 9 sections

and ﬁ g. 20 for 11 to 19 sections).

Open the main gas cock (vent the gas line). Discon-

nect the ignition device from the ignition electrode.

Press several times the '

'-button, until you reach

the menu with the selecting option 'Service settings'.

Select this option and conﬁ rm with the '

'-button.

Now select 'Boiler on?'; conﬁ rm with the ' '-button.

The boiler now will make a start attempt without igni-

tion. As soon as the gas valve opens, the opening

pressure can be read out on the pressure differential

device. The ope ning pressure should be bet ween 1

and 3 mbar. When you read out a higher pressure,

turn the N-controller to the left. Repeat point 12

after resetting the boiler. When the openings pressure

lies between 1 and 3 mbar, a correct pre-setting is

assured. Connect the ignition device again to the igni-

tion electrode and reset the boiler. Select in the serv-

ice level again the option 'Service tests' and conﬁ rm

with the ' '-button.

13. The cursor is now placed on option 'Boiler on?'.

Press the ' ' button. The control unit will now start

from neutral position. After an internal check and a

check of the differential air pressure, the fan will start.

As soon as the differential air pressure is sufﬁ ciently

high, the pre-purge time is started. The fan now pre-

purges for 30 seconds at full load. Then the fan slows

to minimum load. The pre-ignition is activated and the

gas valve opened. If, at the end of the safety time,

there is a sufﬁ cient signal from the pilot ﬂ ame (the

ﬂ ame is checked with a second ionisation probe) the

boiler will start operating at part load (mi ni mum load).

Gas multi-block

Gas distribution pipe

Fig. 19 Differential pressure measuring points (boiler with 7 and 9 sections)

blue

black

burner

black

blue

Side view

∆ gas = PL+PG

∆ air = PL+PF

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