77
ES
CZ
SI
HU
RO
IE
PL
IRELAND
INSTALLER
- BOILER INSTALLATION
Warnings.
The appliance must be connected to a heating circuit and domestic water di-
stribution circuit in correspondence to performance and power specifications.
It must also be installed in an ambient temperature that does not fall below 0°C
and must not be exposed to atmospheric agents.
Main dimensions.
Key:
G - Gas supply
R - System return
M - System delivery
RC - Recycle (optional)
U - Hot domestic water outlet
E - Domestic water inlet
V - Electrical connection
Gas hook-up (appliance category II
2H3+
).
Immergas boilers are designed to
operate with the following types of gas: natural gas (G20) and LPG. Delivery
pipelines must feature the same or larger diameters as the 1/2”G boiler fitting.
Before hooking up the gas line, ensure that all system fuel pipelines are perfectly
clean, and remove all residue that could impair appliance efficiency. Also check
that the gas corresponds to boiler specifications (see boiler dataplate). If the
types are different, the appliance should be converted for operation with the
specific type of gas required.
The gas pressure must also be checked (natural or LPG) according to the
type used in the boiler; insufficient levels could reduce generator power and
malfunctions.
Water connection.
Before making the water connections, all system piping must
be cleaned thoroughly to remove any residue that could impair boiler efficiency.
Water connections must be made in a rational sequence using the couplings
on the boiler template. The boiler safety valve outlet must be connected to a
discharge funnel. Otherwise, the manufacturer declines any responsibility in case
of flooding if the drain valve cuts in.
Electricity connection
. The Zeus Mini boiler is designed with IPX4D protection
rating. Electrical safety of the unit is guaranteed when correctly connected to an
efficient earthing system as specified by current safety standards.
Caution
: Immergas S.p.A. declines all liability for damage or physical injury
caused by failure to connect the boiler to an efficient earthing system or failure
to observe CEI reference standards.
Also ensure that the electrical installation corresponds to maximum absorbed
power specifications as shown on the boiler dataplate.
Boilers are supplied complete with an “X” type power cable without plug. The
power cable must be connected to a 230V-50Hz mains supply with the correct
pole sequence L-N and earth connection
; the mains power supply must
also be equipped with a multi-pole circuit breaker with contact opening gap
of at least 3 mm.
In the event of power cable replacement, contact an Authorised Immergas Service
Centre for assistance.
The power cable must be laid as shown.
In the event of mains fuse replacement on the control card, use a 2A quick blow
fuse. For the main power supply to the appliance, never use adapters, multiple
sockets or extension leads.
N.B.
When connecting the appliance, if the correct L-N polarity is not observed
the boiler does not detect the flame and inhibits start-up. Also in the same case,
if the neutral is powered with residual voltage over 30V, the boiler will probably
operate, but only temporarily. Measure the voltage readings with suitable tools;
avoid the use of mains tester screwdriver.
Ambient thermostat electrical connection On/Off - timer.
The Zeus Mini
Ambient boiler is designed to be used on its own or with the ambient thermostat
or chronothermostat On/Off and the timer. For both components, in the case of
a single fitting, the connection should be made on terminals 6 and 9, removing
the jumper P1. Whereas, if both are present, the room thermostat should be
connected to terminals 8 and 9 and the timer on terminals 6 and 7 after removing
the jumper P1, see wiring diagram.
Caution:
Boiler pipelines must never be used to earth the electrical or tele-
phone lines. Ensure elimination of this risk before making the boiler electrical
connections.
Installing air intake and flue exhaust terminals.
N.B.
The boiler must be installed exclusively with an original Immergas air intake
and flue extraction system. This system is identifiable by a special and distinctive
marking. The flue gas pipes must not be in contact or near flammable materials,
nor must they cross building structures or walls made of flammable material.
Diaphragm installation.
To ensure correct operation of the boiler, a diaphragm
(see figure) must be installed on output of the sealed chamber before the intake
and exhaust duct. Selection of a suitable diaphragm depends on the type of
ducting used and maximum length.
N.B.:
Diaphragms are supplied as standard with the boiler.
Horizontal intake-exhaust kit Ø 60/100.
Kit assembly: install the bend with
flange (2) on the innermost hole of the boiler taking care to insert the seal (1)
and tighten with the screws supplied in the kit. Join the male end (smooth sec-
tion) of terminal pipe (3) to the female section (with lip-seal) of bend (2) to the
end stop and ensure that the internal and external washers are fitted to achieve
perfect sealing of all couplings.
DIAPHRAGM
Height (mm)
Width (mm)
Depth (mm)
890
580
380
Connections
GAS
SYSTEM
DOMESTIC
WATER
G
R
M
U
E
1/2”
3/4”
3/4”
1/2”
1/2”
