69
912.359.1 - IE
IstructIons pErtaInIng to thE InstallEr
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:
14. setting the boiler parameters
parameter n.
H90
H91
H505
H507
H516
H532
H533
H608
H611
H609
H541-H610
H612
H536-H613
H544
H545
H552
H553
H615
H632
H641
H657
Description
minimum D.H.W. temperature setting (°C).
D.H.W. activation program
(0=active; 1=not active)
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 room 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)
pWm (%) Setting: Ignition load
Speed setting (rpm) : Ignition load
pWm Setting (%) : minimum power
pWm Setting (%) : maximum power Central heating / Domestic hot water
Speed setting (rpm) : minimum power
Speed setting (rpm) : maximum power Central heating / Domestic hot water
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 supplementary pump
H632 = 00001111 with Agu2.500 and with QAA73 + zones with room thermostat
H632 = 00001111 with rVA 47
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 overrun time setting (s)
Setpoint of autonomous AntIlegIonellA function
60...80 °C = setting temperature range
0 = function inactive
Factory setting
10
1
80
80
20
15
15
See
table
2
3
180
2
21
9
00001100
10
0
