Electrolux Professional WH5-WHB5 500H, Installation Manual

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Installation manual
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18.4 Gas connection
Caution
The installation, connection and gas arrival adjustments for the machine must be done by qualified personnel
only.
Note!
The customer must install a filter and a manual stop valve on the supply side of the machine if NATURAL
GAS is used.
For BUTANE 28-30 mbar or PROPANE 37 or 50 mbar, the customer must install a filter, a manual closing
valve and a pressure reducer.
Check that the diameter of injectors is adequate for the king of gas of your installation (see table). The machine is de-
livered with extra injectors in a plastic envelope. There is also a sheet metal plate with a cork joint or an adjusting
head to feed the machine with another gas.
Connect the installation at the exchanger : DN 20 (3/4″ BSP).
A : gas burner B : ignition and control electrodes
C : ignitor D : injectors
E : gas admission
The gas exchanger is adjusted at the plant to be suitable for the kind of gas specified on the order. If you have to sup-
ply your machine with gas in a family different from the gas for which your machine was adjusted, proceed as follows.
Important
Testing pressures
According to the EN 437 standard, the values of the testing pressures mentioned in our various documents are
values for static pressure taken at the gas inlet connection of the machine ; the heating of the machine being on.
18.4.1 Changing to a gas in the same family (type H or L)
Change the 3 injectors with joints (see tables of correspondences).
18.4.2 Changing to a gas in a different family (from type H or L to butane or propane)
• Change the 3 injectors with joints (see tables of correspondences).
• Unscrews the fixing screws (V) and remove the adjusting head (J) as well as its cork (T), keep these parts in case
a change would by necessary.
• Replace it by the cork (L) and the plate (P).
• Screw the two screws and block.