52
|
Converting the appliance to different gas types
6 720 644 143 (2010/09)
12.3 Checking the gas supply pressure
B
Switch off the appliance and turn off the gas tap.
B
Undo the plug on the testing point for gas inlet
pressure and connect a pressure gauge.
Fig. 52
B
Turn on the gas tap and switch on the appliance.
B
Press and hold the central heating boost button
until it lights up.
The display shows the flow temperature alternating
with
=
maximum set output
.
B
Briefly press the central heating boost button .
The display shows the flow temperature in alternation
with
=
maximum rated output
.
B
Check required gas supply pressure according to
table.
B
Repeatedly press the central heating boost button
until the light goes out.
The display will show the CH flow temperature again.
B
Switch off the appliance, turn off the gas cock,
remove the pressure gauge and refit the plug.
B
Refit the outer casing.
Gas type
Permissible pressure range at
max. rated output
[mbar/kPa]
NG
11 - 30/1.1-3.0
LPG (Propane)
1)
1) Standard figure for LPG with fixed cylinders with
capacities up to 15 000 l
25 - 45/2.5-4.5
LPG (Butane)
25 - 35/2.5-3.5
Table 21
Never commission the appliance above or
below these values. Identify and eliminate
the cause. Where that is impossible, shut off
the gas side of the appliance and notify the
gas supply utility.
6 720 614 090-34.1O
Содержание ZSB 30-2 A
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