Using The Siemens Qaa73 Remote Control To Set Boiler Parameters - Baxi Luna HT 1.450 Notice D'installation Et D'entretien

12.5 USING THE SIEMENS QAA73 REMOTE CONTROL TO SET BOILER PARAMETERS

You can use the QAA73 remote control to access a number
of parameters on the LMU 34 electronic control card. Con-
nect up the QAA73 as instructed in section 11.1.
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
remote control for about 3 seconds. The message "Ini-
tializing BMU parameters" appears on the display.
2) Simultaneously press keys 1 and 2 for about 3 seconds.
The message "Initializing BMU Service" appears on the
display.
3) Press keys 1 or 2 to scroll through the list of parameters.
4) To change the value of the 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 program-
ming of the boiler's electronic control card.
TABLE OF PARAMETERS EDITABLE WITH THE QAA73 REMOTE CONTROL
Parameter Description of parameter
504 Maximum flow setpoint temperature (°C)
516 Summer / winter changeover temperature
532 Heating curve slope heating circuit HC1
534
Room temperature adjustment (°C)
536 Maximum speed (rpm) at maximum output in heating mode (maximum speed limitation)
541
Maximum degree of modulation in heating mode (%)
544
Overrun time (s) of pumps
545 Minimum burner pause time (s) (heat demand-dependent switching hysteresis)
555.0 Not used for this model
Legionella function
555.1 ON =active
OFF=deactivate
Selector switch
555.2
ON = hydraulic differential pressure switch
OFF = pressure switch
555.3...555.7 NOT used
608 Setting value of modulation air at ignition load (PWM%),
609
Setting value of modulation (PWM%) air at low-fire; lower limit modulation range
610 Setting value of modulation (PWM%) air at high-fire; upper limit modulation range
611 Setting value of required speed (rpm) at ignition load
612 Setting value of required speed (rpm) at low-fire
613 Setting value of required speed (rpm) at high-fire
OT Input setting (QAA73)
0 = only with QAA73
614
1 = with low voltage room thermostat RT or QAA73
2 = NOT used
641 Setting value post purge time (s)
677 Not used for this model
651 Hydraulic system adjustment
652 MANUFACTURE information (only read parameter)
*
These parameters differ depending on the model of boiler installed. See the Service instructions that come
with the control board for a complete list of parameters and settings.
Note:
If the QAA73 is connected to the boiler, the corresponding LEDs (2 or 3, Figure 30) flash when a request for central
heating or domestic hot water is received.
INSTALLATION AND SERVICING INSTRUCTIONS
1---
Fig. 33
40
---2 3--- ---4
Default value
80
30
15
0
See section 12.8 table 1
*
180
180
OFF
ON
OFF
*
*
*
*
See section 12.8 table 3
See section 12.8 table 1
0
10
0
7
*
7110242.02 - en
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