Converting The Appliance To Different Gas Types; Converting To A Different Gas Type; Gas Settings (Natural And Lpg); Preparations - Bosch WBN 6000-30-H-E-N/L-S2400 Installation And Maintenance Instructions Manual

22 | Converting the appliance to different gas types

10 Converting the appliance to different gas
types

10.1 Converting to a different gas type

The following gas conversion kits are available:
Appliance
WBN 6000-30-H-E-N/L-S2400 LPG
Table 14
DANGER: Risk of explosion!
▶ Turn off gas valve before working on gas-carrying
components.
▶ Check for leaks before working on gas-carrying
components.
▶ Install the conversion kit according to the accompanying installation
instructions.
▶ Make the gas settings after every conversion ( section 10.2).

10.2 Gas settings (natural and LPG)

10.2.1 Preparations

▶ Flip the control unit down ( page 12).
▶ Mount the control unit at the bottom of the appliance so that the gas
train and the control unit can be operated at the same time.
Fig. 23 Control unit, mounted in the frame, allowing the gas train and
control unit to be operated at the same time
The rated output can be set using the nozzle pressure or volumetrically.
▶ Always initially adjust at maximum output and then at minimum
outout.
▶ To ensure heat transfer, open radiator valves or hot water draw-off
point.
8 716 473 216 (2014/09)
Conversion to Part no.
8 733 201 156
NG 8 733 201 155
8 716 473 216-09.1O
1
2
3
4
5
Fig. 24 Gas train
[1] Test port (for nozzle pressure)
[2] Adjusting screw, maximum gas volume
[3] Cap
[4] Adjusting screw, minimum gas volume
[5] Test nipple for gas supply pressure

10.2.2 Nozzle pressure setting method

Nozzle pressure at maximum output
▶ Select service function 1.2.F and operating mode 04 (= maximum
rated output) ( page 19).
▶ Loosen the sealing screw at the test nipple for the nozzle pressure
( Fig. 24, [1]) and connect the U-tube pressure gauge.
▶ Remove the cover ( Fig. 24, [4]).
▶ For "max." specified nozzle pressure (mbar). Use the setting screw to
set the nozzle pressure for the max. gas volume ( Fig. 24, [2]). Turn
clockwise = more gas; turn anti-clockwise = less gas.
Nozzle pressure at minimum output
▶ Select service function 1.2.F and operating mode 03 (= minimum
rated output) ( page 19).
▶ For "min." specified nozzle pressure (mbar). Use the setting screw to
set the nozzle pressure for the min. gas volume ( Fig. 24, [3]).
▶ Check the set min. and max. values and correct them if required.
Checking the gas supply pressure
▶ Switch off the gas boiler, close the gas valve, remove the U-tube
pressure gauge and tighten the sealing screw [1].
▶ Loosen the sealing screw at the test nipple for the gas supply pressure
( Fig. 24, [5]) and connect the pressure gauge.
▶ Open the gas valve and switch on the gas boiler.
▶ Select service function 1.2.F and operating mode 04 (= maximum
rated output) ( page 19).
▶ Check required gas supply pressure according to table.
Nominal
pressure
Gas type [Kpa]
Natural gas H (23) 1.13
LPG
1)
(Propane)
2.75
LPG
(Butane)
Table 15
1) Standard figure for LPG with fixed cylinders with capacities up to 15 000 l
6 720 806 640-19.1O
Permissible pressure range at
max. rated output
[Kpa]
1.13 - 3.0
2.5 - 3.5
Gaz 6000 W