Immergas MINI NIKE 24 4 ERP, Instruction And Warning Book

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10
1-8
A3
V1
A2
V3
V2
A1
A3
V1
A2
V3
V2
A1
INS
TALL
AT
O
R
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Open bypass
Closed bypass
Ci
rcu
la
to
r p
um
p a
bs
or
be
d p
ow
er (
W
)
Flow rate (l/h)
H
ea
d (kP
a)
Ci
rcu
la
to
r p
um
p a
bs
or
be
d p
ow
er (
W
)
Flow rate (l/h)
H
ea
d (kP
a)
1.15 KITS AVAILABLE ON REQUEST.
• System shut off valves kit. The boiler is designed
for installation of system interception cocks
to be placed on flow and return pipes of the
connection assembly. This kit is particularly
useful for maintenance as it allows the boiler to
be drained separately without having to empty
the entire system.
• Polyphosphate dispenser kit. The polyphospha-
te dispenser reduces the formation of lime-scale
and preserves the original heat exchange and
domestic hot water production conditions.
The boiler is prepared for application of the
polyphosphate dispenser kit.
The above-mentioned kits are supplied complete
with instructions for assembly and use.
Total head available to the system.
Key:
V1 = Total head available to the system with
pump at speed 2
V2 = Total head available to the system with
pump at speed 3
V3 = Total head available to the system with
pump at speed 4
A1 = Power absorbed by the pump at speed 2
A2 = Power absorbed by the pump at speed 3
A3 = Power absorbed by the pump at speed 4