26
Installation instructions
CALDAIA A LEGNA
Pr
VE
S4
S5
VM
Pi
IR
TAS
SONDA
FUMI
Pb
PRODUTTORE ACQUA
CALDA SANITARIA
S3
S1
S2
Ps
VE1
CS
System with OH boiler and DOMESTIC HOT WATER single or double coil STORAGE TANK with SOLAR
PANELS.
Production of water for central heating system with temperature control by means of manual mixer valve (or electric
managed by supplementary heating controller).
fig. 24
The panel board of the AIREX boiler automatically manages
system heating and production of domestic hot water.
If the storage tank is equipped with a double coil, solar panel
management can be inserted as well.
When one storage tank is managed, like in this case, it is sufficient
to enable the probe
S3
which performs temperature control.
Storage tank management is enabled with the
FUNCTIONAL
SETTING PARAMETER
.
When the temperature of the storage tank drops below the mi-
nimum value set on
PARAMETER 3
, the program automatically
activates the domestic hot water priority.
For the storage tank loading pump to start, the temperature of
the boiler (detected by probe S4) must be greater than the mi-
nimum temperature (PARAMETER 1) and loading is performed
if the temperature detected by probe
S4
is greater than that
detected by probe
S3
plus the
PARAMETER 6
(storage tank
loading thermal delta).
To manage solar panels, enable probes
S2
and
S1
(probe setting
parameter) as well as the
SOLAR
function with the
FUNCTIONAL
SETTING PARAMETER
.
The recirculation pump is essential in all the diagrams since
it balances the flow and return temperature of the boiler and
prevents condensation.
KEY:
Pr
VM
Pi
Pb
Ps
VE
VE1
IR
TAS
CS
S1
S2
S3
S4
S5
TKS
TA
FLUE GAS PROBE
recirculation pump (if not installed, the warranty is null and void)
manual zone mixer valve (or electric, managed by supplementary heating controller)
heating system pump
storage tank loading pump
solar heat exchanger pump
open expansion vessel
closed expansion vessel
heating system distribution (loading)
thermal discharge valve probe
solar heat exchanger
solar heat exchanger probe
storage tank bottom probe
storage tank top probe
flow temperature probe
return temperature probe
door opening microswitch
room thermostat or chronothermostat
flue gas temperature probe
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
FLUE GAS
PROBE
WOOD BOILER
DOMESTIC HOT
WATER PRODUCER
