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1.26 BOILER COMPONENTS.
Key:
1 - Gas valve
2 - Condensate drain trap
3 - Safety thermostat
4 - Gas nozzle
5 - Delivery probe
6 - Venturi
7 - Detection electrode
8 - System expansion vessel
9 - Air intake pipe
10 - Condensation module
11 - Manual air vent valve
12 - Negative signal pressure point
25 - Adjustable by-pass
26 - 3 bar safety valve
27 - 3-way valve (motorised) (Optional)
28 - System draining valve
29 - System filling valve
G - Gas supply
RU - Storage tank unit return (Optional)
MU - Storage tank unit flow (Optional)
RR - System Filling
R - System return
M - System flow
1.25 KITS AVAILABLE ON REQUEST.
• System cut-off valve kits with or without
inspectionable filter (on request). 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 very
useful for maintenance because it allows to
empty just the boiler without having to empty
the entire system. Moreover, the version with
filter preserves the functioning characteristics
of the boiler thanks to its inspectionable filter.
• System zone control unit kit (on request). If
the central heating system is to be divided into
several zones (
max. three
) in order to interlock
them with separate adjustments and to keep
water flow rate high for each zone, Immergas
supplies zone system kits on request.
• 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 application of the polyphosphate dispenser
kit.
• Relay board (on request). The boiler is prepared
for the installation of a relay card that allows
to increase the features of the appliance and
therefore functioning possibilities.
• Cover kit (on request). If installed outdoors in a
partially protected place with direct air intake,
it is compulsory to mount the appropriate top
protection cover for the correct functioning
of the boiler and to protect it from adverse
weather conditions.
• External storage tank unit coupling kit (on
request). If the production of DHW is required
as well as room central heating, on request Im-
mergas supplies a kit made up from an external
storage tank unit and everything necessary for
adaptation of the boiler.
The above-mentioned kits are supplied complete
with instructions for assembly and use.
13 - Positive signal pressure point
14 - Sample points (air A) - (flue gas F)
15 - Flue probe
16 - Heat exchanger safety thermal fuse
17 - Burner
18 - Ignition electrodes
19 - Fan
21 - Return probe
20 - Igniter
22 - System pressure switch
23 - Vent valve
24 - Boiler pump
