Immergas 3.025499, Instruction And Recomendation Booklet

Page: 22 / 68

22
1-28
1
IN
OUT
2
9 8
11 4
5
7
12
6
13
1
2
3
4
5
6
II
II
Min.
7
6
10
11
1
4
8
12
9
14
2
13
3
5
1-29
A
A
B
B
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
1.31 SOLAR CIRCULATION UNIT COMPONENTS.
Key:
1 - Solar pump
2 - Non return valve, thermometer
and cock
3 - Valve drain fitting
4 - Flow meter
5 - 6 bar safety valve
6 - 3/4” connection for expansion ves-
sel
7 - Manometer
8 - Draining valve
9 - Filling valve
10 - Insulating casing
11 - Flow rate regulator
12 - Inlet
13 - Outlet
14 - Reference for flow rate
reading
Solar circulation unit available head.
Key:
A = Available head
B = Power absorbed by the circulator
pump (dotted area)
Ci
rcu
la
to
r p
um
p a
bs
or
be
d p
ow
er (
W
)
Ci
rcu
la
to
r p
um
p a
bs
or
be
d p
ow
er (
W
)
Flow rate (l/h)
Flow rate (l/h)
H
ea
d (kP
a)
Speed III
Speed MAX
Speed
I
Speed MIN
Constant head (
Δ
P C).
Proportional head ( Δ P V).
H
ea
d (kP
a)
1.32 KITS AVAILABLE ON REQUEST.
• Recirculation kit (on request). The boiler is
prepared for the application of the recirculation
kit. Immergas supplies a series of fittings and
attachments that allow connection between the
boiler and domestic hot water system.
• Polyphosphate dispenser kit (on request). The
polyphosphate dispenser reduces the formation
of lime-scale and preserves the original heat
exchange and domestic hot water production
conditions. The boiler is prepared for applica-
tion of the polyphosphate dispenser kit.
• Third mixed zone kit (on request). In the event
one wishes to add a third mixed zone, providing
it with a separate adjustment and maintaining
a high water flow-rate, there is a kit available
which includes the circulator and mixing valve.
• Plate heat exchanger kit. In the event one wishes
to divide the hydraulic circuit of the heat pump
from that of the boiler, one can install the
plate heat exchanger kit, consisting of a plate
exchanger and an additional circulator.
• Solar connection kit. To connect the boiler
to the solar system there is a kit available that
includes insulated system connection pipes.
• Condensate drain pump kit. In the event the
hydraulic connection to the condensation drain
fitting is positioned higher than the boiler
condensation drain, one may have to install
a pump to allow the correct drainage of the
condensation produced by the boiler.
The above-mentioned kits are supplied complete
with instructions for assembly and use.