Baxi AGU 2.550 Mode D'emploi page 33

11. SUNDRY FUNCTIONS
As well as the above settings, the inputs and outputs can also be configured according to system requirements. The following
examples consider the relay QX21 and sensor BX21 output of the accessory, though the same applies to relays QX22, QX23 and
the sensor BX22. In all cases, set the accessory to "Multifunctional".
MENU PROGRAMME ROW
CONFIGURATION
11.1 DHW RECIRCULATION PUMP
If a storage boiler is used in the DHW circuit, the circulation pump can be controlled. This function is limited by the hourly program-
ming of the DHW system. To minimise circulation losses, the function activates the pump for 10 minutes followed by a 20 minute
pause. Enter menu 2 from the Remote Control, as described in section 5:
PROGRAMME ROW
MENU
6030
CONFIGURATION
6040
TEMPS / MODE
1663
HOT WATER
11.2 SOLAR PLANT FOR SWIMMING POOL
Heating a swimming pool with solar panels can be achieved as follows.
1 Solar storage heater sensor B31 (BX22-M)
2
Solar storage heater manifold B6 (BX21-M)
3 Solar circuit pump Q5 (QX23-N)
4 Storage boiler sensor B3 - terminal block M2 (9-10) of boiler
The diagrams in this document are purely indicative and must be backed by a technical thermal analysis.
Configure the system as described in section 8. At this point the DHW system is configured to use solar panels. Enter menu 2 from
the Remote Control, as described in section 5:
MENU PROGRAMME ROW
5931
CONFIGURATION
6030
6046
DHW CIRCUIT
It is important to use contact H2 as it assures correct system operation, allowing heat exchange with the swimming pool only if the
latter allows it to do so. Make sure the swimming pool is full of water and operative.
PARAMETER
6020 Extension module 1 function
VALUE TO SET
Circulating pump Q4
HW circulation sensor B39
factory setting = 45°C
VALUE TO SET
Swimming pool sensor B13
Solar ctrl elem swi pool K18
Release swi pool solar
VALUE TO SET
Multifunctional
DESCRIPTION
DHW recirculation pump enable (relay QX21 output)
DHW recirculation sensor enable (sensor BX21)
DHW temperature below which the pump is enabled (recirculation
5 Swimming pool pump (QX21-N)
6 Swimming pool heating return sensor – terminal block M2 in boiler
7 Swimming pool
DESCRIPTION
Swimming pool sensor enable (BX2 sensor input)
Swimming pool heating pump enable (relay QX21 output)
Swimming pool heating activation (e.g.: via float or manual command)
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DESCRIPTION
Solar function enable
setpoint)
7104900.03 (1-11/13)