Any pipe used to connect the overflow connection to a waste must have a
continuous fall and have a minimum internal bore of 13mm. An air gap must be
provided within 1metre of the appliance. Failure to provide an air gap within this
distance could cause an air lock, which would stop the water discharging in the event
of an overflow.
IMPORTANT: While reasonable precaution is taken to prevent an overflow, Instanta
cannot be held responsible for any damage caused as a result of incorrect
installation or blockage of the overflow.
Failure to connect the overflow-outlet to a permanent waste or drain, could lead to
property damage from flooding.
If in all circumstances, it is absolutely not possible to direct the boiler overflow-outlet
to a permanent waste or drain, then the mains water supply to the boiler should be
isolated and the unit switched off whenever it is left unattended for long periods (e.g.
overnight).
4.4
ELECTRICAL CONNECTION
All electrical work must comply with all relevant wiring regulations and be carried out
by a qualified electrician.
a) The MOD18 boiler is supplied with a 2mtr long, 3-phase, Neutral and Earth lead
for connection to a suitable power supply. The five wires are coloured and should be
configured (latest European Standard) as follows:
Brown
=
Phase-1
Black
=
Phase-2
Grey
=
Phase-3
Blue
=
Neutral
Green/Yell
=
Earth
b) The appliance should be wired into a non-inductive breaker, fused at 32A per
phase. The isolation switch for the appliance must not be obstructed and be within
easy reach
