86
GB
Scheme 04 :
the Boiler is connected to a technical w
ater puffer
.
The Boiler is turned off when the upper probe is satisfi
ed.
The heating Boiler is switched on when the inferior probe is not satisfi
ed.
The heating w
ater will then be tak
en from this puffer by means of the pumps and the non-commanding relay from the Boiler’
s control unit.
a)
To set the temper
ature at the top of the puffer
, press the
k
ey
. Use the
and
k
eys to select the desired degrees
b)
To set the temper
ature on the bottom of the puffer
, press the
k
ey and use the
e
and B k
eys to select the desired degrees
c)
To set the work power
, press the
k
ey and adjust it with the
and
ke
ys.
The restart from the stand-by state occurs automatically when the temper
ature detected by the lower puffer probe is lower than the set temper
ature (b)
II
I
The scheme is indicative and w
ants to
demonstr
ate only the components that can
be managed by the boiler
. Any relay pumps
must be controlled separ
ately from the
boiler
I
=
ON / OFF higher thermostat
on
Technical w
ater Puffer
.
II
=
ON / OFF lower thermostat
on
Technical w
ater Puffer
.
3 vi
e
3 wa
y
comune - N
common -
N
Lato sanitatio
DHW side
Lato riscaldam.
heating side
Sond
a
sup.
puffe
r
Puffer
uppe
r
prob
e
Termostat
o
estern
o
External
thermostat
Sonda accumulo
sanitario o sonda inf. puffe
r
DHW probe or puffer
lower prob
e
1
2
3
4
5
Terminal block:
numerical correspondence
for the v
arious electrical connections
.
6
Summary of Contents for 20B
Page 57: ...115 GB NOTES Cod 001116...
Page 58: ...116 GB NOTES Cod 001116...
