Page 5
Zeus Mini Instructions
Gas Supply
The meter and supply pipes must be sized to deliver the gas rate and pressure given on page 3. The
boiler requires at least a 22 mm (3/4”) gas supply pipe.
The complete installation, including the meter, must be tested for gas soundness and purged as described
in IS 813:2002.
Electrical Installation
The boiler requires a 220/240
V ~ 50 Hz mains supply,
fused at 3 A. Polarity of the
supply must not be reversed
or the boiler will not function
properly. The boiler will not
function properly and may be
damaged when connected to
a generator which does pro-
duce a true sine wave type
output.
The boiler must be earthed.
There must only be one com-
mon isolator, providing com-
plete electrical isolation, for
the boiler and any external
controls.
Using PVC insulated cable
not less than 0.75 mm² (24 x
0.2 mm) to BS 6500 Table
16, the boiler should be con-
nected to a fused three pin plug and unswitched shuttered socket outlet (both complying with BS 1363), or
a fused double pole switch with a contact separation of at least 3 mm in both poles.
Wiring external to the boiler must be in accordance with the current IEE Wiring Regulations.
Note: External controls connected to the boiler must be of the volt free type and are connected to
terminals 6 and 9 as shown above. Connection of a voltage to any boiler terminals other than the
mains lead will result in destruction of the boiler control panel.
Clearances and Air Supply
The boiler does not require any air vents for cooling in the room in which it is installed or when installed in a
cupboard or compartment. The minimum clearances for servicing must always be maintained. Please see
table on page 3.
Note:
A cupboard or compartment used to enclose the boiler must be designed and constructed specifi-
cally for the purpose.
Flue System:
When the boiler is installed on an external wall, the standard horizontal concentric
60/100 flue kit will be used to flue the boiler. This is shown
below.
General Installation Information
Note: a flue diaphragm is supplied with
the boiler and must be fitted when the
standard flue kit is used. It is not used
when longer flue runs are required.
