reason
or
fault
has
been
identified
and
rectified, if necessary
by
reference to
the
separate
burner
information
or
to section 6 of this
manual.
(k) Repeat
steps
4.2 c,a,
(l)
Repeat
steps
4.2 d,e,f,
allowing
the
heater
to reach
thermal
equilibrium.
(m)
Adjust
room
thermostat
to its highest setting,
and
allow
the
heater
to
continue
to fire.
(n)
Gradually
reduce
the
temperature
setting
on
the
room
thermostat
until the
burner
shuts
down,
(@
°C <
ambient)
and
then
gradually
increase
the
temperature
setting
on
the
thermostat
until
heat
is called for,
(@
°C > ambient)
and
the
burner
automatically
re-fires.
(0)
Re-set
time
clock to a
minimum
off
period,
checking
that
the
burner
shuts
down,
and
then
automatically
re-lights once
the
minimum
off
period
has
elapsed
. (Separate information
on
the
time clock is
contained
within
the
information
package
supplied
with
the heater).
(p)
Check
fan
and
limit
stat
by
depressing
and
holding
in the fan
motor
overload
re-set
button,
located
on
the
heater
electrical
panel.
The
time
between
the fan
stopping
and
burner
shut
down
should
be
noted,
once the
burner
has
shut
down
the
overload
on
the
motor
should
be
released.
If
the
time interval
between
fan
stop
and
burner
shut
dmvn
is
greater
than
90
seconds
further
checks
should
be
made.
These are as follows:
(i)
Check settings
on
fan
and
limit
stat
are correct, ie, fan
on
60°C, fan off 30°C, limit 100°C.
(ii)
Check
that
the position of the
unit
is correct, ie,
equi-distant
between
heat
exchanger
body
and
heat
shield panel.
(iii) Check integrity of unit,
ensuring
that
neither
the
bi-metalic
strip
nor
its casing is
damaged.
(q)
Undertake
flue
gas
analysis
using
approved
and
calibrated
analysing
equipment
recording
data
on
the
commissioning
card, ie,
CO,
C02,
net
and
gross flue
temperatures.
Record
burner
oil
pump
pressure,
ambient
temperature,
barometric
pressure,and
smoke
reading
(0
- 1
Baccarach scale).
Note
(i)
The
burner
air
and
oil
pressure
settings
should
be
only
very
finely
adjusted
to achieve a C02
reading
of 12.5% (+ / - 0.5%
).
Note
(ii)
The
gross efficiency
must
be
approximately
80
percent.
Note
(iii)
All
Cabinet
Heaters
are
test fired
and
pre-commissioned
as
part
of
the
manufacturing
process, if
however,
during
on
site
commissioning
the
data
are
found
to
be
not
in
accordance
with
the
manufacturers
data,
then
the
following action is
recommended
:
* Re-check all
readings
and
calculations.
*
Adjust
burner
as
per
manufacturers
instructions.
*
Consult
Benson
Environmental
Ltd Technical
Department.
(r)
Complete
commissioning
card
and
provide
operating
instructions for the user, high-light the
fact
that
the
manufacturer
recommends
that
in
the
interests of safety
and
efficiency
the
heater
is
serviced
on
a
regular
basis
only
by
qualified
and
competent
persons.
The
completed
commissioning
card
must
be
returned
to
Benson
Environmental
Ltd
Service
Department
immediately
after
the
satisfactory
completion
of commissioning, failure to
do
so can
invalidate
any
subsequent
warranty
claim.
(s) Set all controls to the
requirements
of
the
user.
26
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