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1.24 BOILER COMPONENTS.
Fig. 1-29
Key:
1 - Domestic hot water flow rate adjuster
2 - Condensate drain trap
3 - Gas valve
4 - Domestic hot water probe
5 - Safety thermostat
6 - Gas nozzle
7 - Flow probe
8 - Venturi
9 - Detection electrode
10 - System expansion vessel
11 - Air intake pipe
12 - Condensation module
13 - Manual air vent valve
14 - Negative signal pressure point
15 - Positive signal pressure point
16 - Sample points (air A) - (flue gases F)
17 - Flue safety thermostat
18 - Heat exchanger safety thermofuse
19 - Burner
20 - Ignition electrodes
21 - Fan
22 - Return probe
23 - Aqua Celeris
24 - Igniter
25 - DHW inlet probe
26 - System pressure switch
27 - Air vent valve
28 - Boiler pump
29 - 3 bar safety valve
30 - Adjustable by-pass
31 - DHW heat exchanger
32 - 3-way valve (motorised)
33 - System draining valve
34 - Domestic hot water flow meter
35 - System filling valve
1.23 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.
The above-mentioned kits are supplied complete
with instructions for assembly and use.
