Technical data

Caution
It is imperative that the flue should be
properly sealed where it passes through the
roof, this can best be achieved by using the
approved method of roof flashing plate and
cravat. The flue spigot outlet on all Variante
heaters is in horizontal configuration.
Note
It should be noted that claims made under
warranty and attributed to the ingress of
water may not be considered especially if an
approved method of sealing has not been
used, or if the design of the flue has not
made provision for possible condensation
problems.
It is also recommended that BS5854: 1980
and BS5440: parts 1 and 2 are used as a
consultative document when considering flue
requirements.
If terminating through a wall only use Benson
approved horizontal terminals
2.6 Electrical Installation
All electrical wiring and connections must be
in accordance with the relevant European,
National, and Local regulations as well as to
IEE Standards.
Ensure that the Electric and Gas supplies are
turned off before any electrical work is
carried out on the heater.
Also ensure that wiring cannot make contact
with any metal surfaces liable to be subject
to high temperatures, and where insulation of
the wiring could be impaired as a result of
such contact.
All Variante models must be earthed.
Warning
Ensure that the electrical supply is
compatible to the heater.
ALL HEATERS ARE NEUTRALLY RESET
Caution
The main electrical supply must not be
switched off or disconnected as a method for
stopping the heater, the exception to this is in
the event of an emergency, or when the
heater has been allowed to cool sufficiently
to prevent any damage from being sustained
to the heater or its controls (ie: during
servicing).
Claims for damage will not be considered if
they have resulted from incorrect wiring or
the incorrect use of the heater
Each heater requires a permanent 230V
50Hz 1ph / 415v/3ph/50Hz electrical supply,
which must be wired through a fused isolator
fitted with a fuse of the correct rating (see
section 7.1). The correct supply connection
points for the live, neutral, and earth.
Wiring diagrams are also detailed within this
manual, (section 6.0 )
The electrical supply isolator should be
mounted adjacent to the air heater in an
easily accessible position to allow for
servicing isolation, or emergency shut off.
Electrical panel
Warning
Ensure that the mains isolator is turned OFF
before undertaking any electrical work on the
heater. Access to the electrical panel is
gained by opening the right hand heater side
panel.
Warning
Ensure that all connections are secure and
that there are no loose strands which could
bridge across the terminals.
A minimum conductor size of 1.0 mm
(diameter) is required.
Caution
When using CP4 Optimised Controller
Consideration should be made when routing
the cable between the control and heater.
Avoiding where possible any existing cables
and switch gear as any induced voltage may
affect the operation of the sequential control
box within the heater.
It is recommended that screened cable is
used when the control is to be sited more
than 10 metres away from the heater
One electrical panel per heater is required,
unless heaters are specified for multiple
heater control applications. On no account
should more than one heater be connected
to a single time switch or thermostat.
The only exception to this is when a control
panel suitable for multiple heater applications
is supplied by the manufacturer.