Junkers miniMAXX WR 11-2 B Series, Руководство по установке и эксплуатации

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Adjustments
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6 Adjustments
6.1 Factory settings
Natural gas
Heaters for natural gas H (G 20) are supplied sealed
from the factory after being adjusted to the values indi-
cated on the rating plate.
Liquefied gas
Heaters for propane/butane (G31/G30) are supplied
sealed from the factory after being adjusted to the val-
ues indicated on the rating plate.
It is possible to adjust the power using the burner pres-
sure process, although a pressure gauge is necessary for
this procedure.
6.2 Pressure adjustment
Accessing the adjusting screw
B
Remove the front part of the heater (see 4.3).
Connecting the pressure gauge
B
Unscrew the shut-off screw.
B
Connect the pressure gauge to the measuring point
for the burner pressure.
Fig. 14 Pressure measurement points
Maximum gas flow adjustment
B
Remove the screw seal (Fig. 15).
B
Turn on the heater with the power selector set to the
left (maximum position).
Fig. 15 Maximum gas flow adjusting screw
B
Open various hot water taps.
B
Using the adjusting screw, regulate the pressure until
obtaining the values indicated in the table 6.
B
Seal the adjusting screw once again.
Minimum gas flow adjustment
6.3 Converting to a different gas type
Use only original conversion kits. Conversion must only
be carried out by an accredited technician. Authentic
conversion kits are supplied with installation instruc-
tions.
Sealed elements must not be opened.
Heaters must not be turned on if the con-
nection pressure is lower than 15 mbar or
higher than 25 mbar.
Danger:
The following procedures must only be
performed by a qualified technician.
The minimum gas flow adjustment is per-
formed automatically after the adjustment
of the maximum gas flow.
Natural gas H Butane Propane
Injector
code
WR11
8708202113
(1,10)
8708202130
(0,70)
8708202124
(1,20)
8708202128
(0,72)
WR14
8708202113
(1,10)
8708202128
(0,72)
8708202116
(1,25)
8708202132
(0,75)
WR18
8708202115
(1,15)
8708202130
(0,70)
8708202116
(1,25)
8708202132
(0,75)
Connection
pressure
(mbar)
WR11
WR14
WR18
20 30 37
MAX (mbar)
WR11 12,7 28 35
WR14
12 28 35
WR18
10,3 25,5 32,5
Tab. 6 Burner pressure