20
1-26
INSTALLERUSER
MAINTENANCE TECHNICIAN
1.27 HYDRAULIC DIAGRAM WITH OPTIONAL.
Key:
1 - Generator
2 - Manometer pocket
3 - Minimum pressure switch
4 - Probe for fuel shut-o valve bulb
5 - Manometer
6 - Damper coil
7 - Manometer-holder cock
8 - ermometer
9 - Manual rearm thermostat
10 - Attachment for expansion vessel
11 - Manual rearm pressure switch
12 - Fuel shut-o valve
13 - Expansion vessel
14 - Boiler connection 3-way valve
15 - Hydraulic manifold/mixer
16 - Slurry collection brass lter
Attention: the sensitive elements of the automat-
ic regulation and block circuit breaker switches
and of the thermometer (not supplied as standard
with the boiler) must be set-up as described in
the installation instructions in compliance with
the provisions of the "R" collection. Whenever the
generators are not installed in cascade according
to the instructions and the Immergas original
kits, the sensitive elements must be installed on
the ow piping to the central heating system,
immersed in the current of water at not more
than 0.5 metres from the boiler outlet.
the boilers must be installed in the congurations
and with their own original Immergas cascade
and safety kits.
Immergas S.p.a. declines all
liability whenever the installer does not use the
devices and Immergas original kits or uses them
improperly.
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