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Domestic hot water boiler.
The Zeus Mini boiler is of the storage type with a capacity of 45 litres. An amply
dimensioned stainless-steel coil wound heat exchange pipe considerably reduces
hot water production times. These boilers, built with jacket, bottoms, in stainless
steel, guarantee long life.
The assembly and welding (T.I.G.) construction concepts are carefully prepared
down to the smallest details in order ensure top reliability.
The bottom inspection flange ensures a practical control of the boiler and the
coil exchange pipe as well as easy inside cleaning.
Located on the front portion are domestic water connection fittings (cold inlet
and hot outlet) and the Magnesium Anode cap inclusive of the same, supplied
standard to protect the inside of the boiler against corrosion.
N.B.: Have an authorized technician (e.g. Immergas Authorized Technical As-
sistance Service) check the efficiency of the Magnesium Anode every year. The
boiler is arranged for insertion of the domestic water recycle connection.
Kits available on request
• Expansion tank kit for hot domestic water (by request). If the inlet pressure
exceeds 3 bar, or if pressure reducers or check valves are installed on the do-
mestic hot water circuit or if the air-cushion that forms at the top of the boiler
becomes depleted, the expansion of water contained in the boiler subsequent
heating, can cause leaks from the safety valve. In this case an expansion vessel
Zeus Mini boiler components.
Key:
1 - Negative signal pressure socket
2 - Positive signal pressure socket
3 - Intake sockets (air A) - (flue gases F)
4 - Fan safety pressure switch
5 - Heating NTC limit and regulation sensor
6 - Overtemperature safety thermostat
7 - Primary heat exchanger
8 - Ignition/detection plugs
9 - Combustion chamber
10 - Burner
of suitable capacity for the domestic water will suffice.
• Recycle kit (by request). The boiler is arranged for application of the recycle
kit. Immergas supplies a series of fittings and connections for connecting the
boiler to the domestic circuit. The recycle kit connection is also given on the
installation template.
• Kit of system shutoff valves (on request). The boiler is fitted for installing
the system shut-off cocks on the delivery and return pipes of the connection
unit. This kit is extremely helpful for maintenance as it permits draining the
boiler alone without having to drain the entire circuit as well.
• Polyphosphate batching kit (on request). The polyphosphate batching unit
prevents the formation of limescale over time and maintains constant heat
exchange conditions and production of domestic hot water. The boiler is
designed for application of the polyphosphate batching unit.
• By-pass kit (on request). If zone valves are installed on the heating system, or
case of insufficient water circulation, Immergas supplies by request the system
By-Pass Kit to be installed on the boiler delivery and return connections.
In these conditions a sufficient water flow to the boiler is guaranteed. The
head/flow rate curve is shown in the diagram above.
The above kits are supplied complete with instructions for assembly and use.
11 - Air vent valve
12 - Circulating pump
13 - Gas valve
14 - Motor-operated 3-way valve
15 - System filler cock
16 - Expansion tank
17 - Domestic circuit NTC sensor
18 - 316L stainless steel boiler
19 - Domestic circuit 8 bar safety valve
20 - Boiler drain valve
21 - Flue extraction fan
22 - Sealed chamber
23 - Flue extraction hood
24 - System 3 bar safety valve
25 - System drain cock
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