Baxi PRIME HT 240 Installers And Users Instructions page 32

Table of parameters editable with the QAA73 temperature regulator
Parameter Text line
504 TkSmax
516 THG
532 Sth1
534
DTR1
536
NhzMax
541
PhzMax
544
ZqNach
545
ZBreMinP
555.0
KonfigRG1
555.1 KonfigRG1
555.2 KonfigRG1
555.3...555.7 KonfigRG1
608 LmodZL_QAA
609 LmodTL_QAA
610 LmodVL_QAA
611
N_ZL_QAA
612
N_TL_QAA
613
N_VL_QAA
614
KonfigEingang
641 Tn_QAA
649 BMU-Parameter
651 BMU-Parameter
* These parameters differ depending on the model of boiler installed. See the Service instructions for a complete
list of parameters and settings.
Note: If the QAA73 is connected to the boiler, the corresponding LEDs (2 or 3, fig. 1) flash when a request for central
heating or domestic hot water is received.
Do not confuse these requests for heat with the "flue sweep" or "calibration" functions during which LEDs 2 and
3 both flash quickly on and off in alternation.
Description of parameter
Maximum central heating output temperature (°C)
Summer/Winter changeover
"Kt" central heating curve gradient
Nominal room adjustment
Maximum fan speed (rpm) in central heating mode
(maximum heating power)
Maximum central heating PWM (%)
Pump overrun time (s)
Minimum burner pause time (s) in central heating mode
Activation of Chimney Sweep/Calibration Function via QAA73
OFF: not active
ON: active
Legionella Function for Hydraulic System 2
(with DHW storage tank)
OFF: not active
ON: active
Type of water switch (see paragraph 27: X400 - 8,9)
OFF: water pressure switch
ON: flow switch
NOT USED
PWM setting (%): ignition power
PWM setting (%): minimum power
PWM setting (%): maximum power
(domestic hot water)
Speed setting (rpm): ignition power
Speed setting (rpm): minimum power
Speed setting (rpm): maximum power
OT Input setting (QAA73)
0 = only with QAA73
1 = with low voltage room thermostat RT or QAA73
2 = only for LUNA IN ... models
Fan overrun time setting (s)
Gas boiler heat output adjust max (100%) -min (0%)
during calibration function
Boiler type (water circuit setting)
32
INSTRUCTIONS FOR THE INSTALLER
Default value
80
30
15
0
*
*
180
180
OFF
ON
OFF
0
*
*
*
*
*
*
0
10
0
*