BENSON OIL UNIT HEATER
15
(b) If the current drawn is greater than the
stated running current, in most probability this
will be caused by insufficient static
pressure within the ductwork, in which case
system resistance should be increased
through the introduction of a damper placed as
close to the start of the ductwork as possible,
thereby resulting in a reduction in drawn
current.
The damper should be adjusted until the
current is in accordance with that stated on the
data plate.
(c) If the current drawn is too low the duct
outlet grilles will require opening to reduce
static pressure and increase air volume, if this
is not the case overheat cut outs can be
caused
7.0 Servicing
Warning
Servicing must be carried out on a regular
basis, the maximum interval between services
being 1 year.
In certain applications the frequency of
servicing will have to be increased , this to a
large extent is governed by the working
environment.
It is a requirement that only suitably qualified
and competent persons are allowed to
undertake servicing.
Before any maintenance or servicing work
is carried out the heater must be shut
down and allowed to cool, and have the oil
and electric supplies to it turned off at the
supply valve and isolator
respectively.
Caution
Certain component parts are factory sealed
and are designed so as to be tamper proof.
Usually such items do not require servicing,
and therefore should not be tampered with.
Failure to comply with this can invalidate any
warranty, and can also lead to premature
failure. The following parts fall within this
category: room thermostat, time clock, frost
thermostat, controller, and fan motor
assembly .
Additionally, the fan and limit stat has been
factory set, and must not be re-set without
formal consent from the manufacturer.
Reference should be made to the separate
information covering the operational details of
the burner and remote controllers.
Only approved spare/replacement parts can
be fitted, failure to comply with this can
compromise the safe and efficient running of
the heater, and can also invalidate any
warranty claim
7.1 Planned Servicing
In order to maintain the efficient operation of
the heater it is recommended that the
following planned servicing and preventative
maintenance programme is adopted by the
user.
Quarterly Inspection
(a) Visual inspection of the burner
(b) Clean and check spark electrode
(c) Clean and check photocell
(d) Check overheat safety is operational
Bi-Annual Inspection
(a) As per quarterly inspection, plus...
(b) Combustion check
(c) Smoke test
Annual Inspection
(a) As per half year inspection, plus...
(b) Heat exchanger and cleaning
(c) Electrical connections
(d) Main fan motor assembly
(e) Oil supply including filter
(f) Burner
(g) Air delivery system
(h) Flue
Turbulator positions 100-250
Turbulator positions 300-350
Содержание OUHA 100
Страница 19: ...BENSON OIL UNIT HEATER 19 9 0 Wiring Diagram OUHA 100 OUHA 140 ON OFF 33 65 100...
Страница 20: ...BENSON OIL UNIT HEATER 20 Wiring Diagram OUHA 200 OUHA 350 ON OFF 33 65 106...
Страница 21: ...BENSON OIL UNIT HEATER 21 Wiring Diagram OUHA 100 OUHA 140 HIGH LOW 33 65 107...
Страница 22: ...BENSON OIL UNIT HEATER 22 Wiring Diagram OUHA 200 OUHA 350 HIGH LOW 33 65 108...
Страница 23: ...BENSON OIL UNIT HEATER 23 Wiring Diagram OUHC 200 OUHC 350 ON OFF 33 65 191...
Страница 28: ...BENSON OIL UNIT HEATER 28 12 0 Heater Dimensions Axial Fan...
Страница 29: ...BENSON OIL UNIT HEATER 29 12 1 Heater Dimensions Centrifugal Fan...