Main Burner Pressure - Vaillant TURBOmax Plus SERIES Instructions For Installation And Servicing

U-Gauge connection points for Natural gas
picture shows a
TURBOmax Plus boiler
Connection for LPG
Fig. G.2: Connection of U-gauge
1
2
picture shows a TURBOmax Plus boiler
2a
GAS SUPPLY ADJUSTMENTS
(COMMISSIONING PART II)

Main burner pressure

The burner pressure on this
appliance has been factory set and
does not require adjustment. To
check the main burner pressure
connect the U-Gauge as follows
depending on the gas type.
For natural gas appliances:
Slacken the sealing screw (1) at test
point on the gas valve and attach one
arm of a U-gauge (2) to the test point.
Remove plastic sealing plug and
connect the other arm to the
combustion chamber sensing tube (3).
For LPG appliances:
Slacken the sealing screw (1a) at test
point on the burner inlet gas pipe and
attach one arm of a U-gauge (2a) to
the test point.
Remove plastic sealing plug and
connect the other arm to the
combustion chamber sensing tube
3 (3a).
Turn off the boiler at the main
ON/OFF control.
Press and hold the „+" button,
while pressing the button turn the
main ON/OFF control to the „1"
ON position.
Continue holding „+" button until
display alternates between „P1"
1a
and „P2". Release „+" button.
Press „+" button until „P1" is shown
in the display. „P1" indicates the
maximum gas rate and „P2"
indicates the ignition rate.
Press „i" button to operate boiler at
maximum gas rate.
Check that the burner pressure is
correct as shown in table G3 for the
appropriate boiler.
To cancel selected „P1" or „P2" mode
press the „i" and „+" buttons
simultaneously.
TURBOmax Plus only
Measure the domestic hot water
burner operating pressure (mbar), the
3a
heat input (kW), the inlet/outlet
domestic hot water temperatures (°C)
and flow rate (l/min) by fully opening
a hot water tap and record details in
the boiler logbook.
THERMOcompact only
Record the heat input in the boiler
logbook.
After completion of all tests tighten
sealing screw, replace the sealing
plug and check all test points for
soundness (1/1a).
45