Baxi LUNA HT 1.350, Instructions Manual

Page: 96 / 104

96
instructions pertaining to the instaLLer 924.493.3
it
at
gB
If the electronic circuit board is replaced, make sure that the parameters set are those specific to the boiler model, as
indicated in the documentation available from the authorised Service Centre.
Description
Setting for domestic hot water reduced temperature (°C)
D.H.W. (Domestic Hot Water) program
(0 = enabled; 1 = disabled)
Max­imum temperature (°C) of the central heating circuit HC1 corresponding to:
- the main circuit in systems with just one zone;
- the circuit of the zone where the QAA73 temperature control device is installed in case of
systems with more than one high-temperature zone;
- the high temperature zone circuit in mix­ed systems and if the SIEMENS AGU2.500 accessory
is used.
Max­imum temperature (°C) of the central heating circuit HC2 of a system with more than one
zone, corresponding to the circuit of the low-temperature zone if the SIEMENS AGU2.500
accessory is used.
Automatic Summer / Winter switching temperature (°C).
Selection of temperature curve of central heating circuit HC1 (see Graph 1)
Selection of temperature curve of central heating circuit HC2 (see Graph 1)
Max­imum speed at max­imum output in heating mode
(rpm - max­imum speed limitation)
Setting value of required speed (rpm) at low-fire
Setting value of required speed (rpm) at high-fire
Pump post-circulation time in central heating mode (min)
Burner operating pause time between two start-ups (s)
Hydraulic system setting (see instructions provided with the SIEMENS AGU2.500 accessory).
H552 = 50 with AGU2.500 and with QAA73 + zones with room thermostat
H552 = 80 with RVA 47
Configuration of heating circuits
H553 = 12 with AGU2.500
Programmable function
Configuration of system with low loss header P1
H632 = 00001111 with AGU2.500 and with QAA73 + zones with room thermostat
H632 = 00001000 with storage tank without low loss header
The value of Bit could be 1 or 0.
Press the keys 5 and 6 to select the bit to modify (b0 is the bit on the right, b7 is the last bit
on the left).
To modify the Bit value press on the keys 7 and 8
Fan post-purge interval (s)
Setpoint of autonomous ANTILEGIONELLA function
60...80 °C = setting temperature range
0 = function inactive
Factory setting
10
1
80
80
20
15
15
Refer to
paragraph 12.1
10
180
2
21
9
00001100
10
0
The boiler parameters may only be modified by professionally qualified staff proceeding as follows:
a) press the , keys on the boiler’s front panel together for about 3 s until the parameter H90 appears on the display;
b) press the keys to select the parameter for modification;
c) press the and keys to modify the parameter;
d) press the key to ex­it the programming function.
The following are the parameters generally used:
table 4
parameter n.
h90
h91
h505
h507
h516
h532
h533
h536
h612
h613
h544
h545
h552
h553
h615
h632
h641
h657
15. setting the boiler parameters