User`s manual

INSTALLERUSERTECHNICIAN
1616
Pump release. After a prolonged period of disuse, if
the pump is blocked, unscrew the front cap and turn
the motor shaft using a screwdriver. Take great care
during this operation to avoid damage to the motor.
1.12 Domestic hot water boiler.
The Zeus Maior boiler is of the storage type with a capacity
of 60 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 (AISI 316L), 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 flange cover 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 Assistance Service) check the
efficiency of the Magnesium Anode every year. The
boiler is arranged for insertion of the domestic water
recycle connection.
1.13 Kits available on request.
• Expansion tank kit for hot domestic water (on
request). If the inlet pressure exceeds 3 bar, or if
pressure reducers or check valves are installed on
the domestic 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 of
suitable capacity for the domestic water will suffice.
• Recycle kit (on 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 designed for installation of system shutoff valves
for insertion on delivery and return pipelines of the
connection assembly. This kit is particularly useful
for maintenance as it allows the boiler to be emptied
without having to drain he entire system.
• 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.