Baxi Luna HT 1.650 Setup page 4

Before lighting Boiler
The following must be performed before calibrating the gas valve.
1. Turn the adjusting screw, or "V" screw (2.5 mm hex) Five complete revolutions clockwise.
2. On the QAA73 controller, which is connected to terminals 4 & 5 on the M2 bus terminal, set
parameters 608 to 24% and parameter 611 to 2000 rpm.
Setting Parameters:
The editable parameters are those between 504 and 652. Proceed as follows to access
these parameters:
1. Simultaneously press keys 1 and 4 on the QAA73 controller for
approximately 3 seconds. The message "Initializing BMU parameters"
appears on the display.
2. Simultaneously press keys 1 and 2 for approximately 3 seconds. Parameter
504 will appear on the display.
3. Press key 1 or 2 to scroll through the list of parameters.
4. To change the value of a selected parameter, press key 3 or 4 to decrease or
increase the value respectively.
5. Press key 5 to enter the new values and exit programming of the boiler.
B L HT 1.650 S
AXI UNA ETUP
P
ROPANE