23/30
Outlets for ducted systems are generally
adjusted by the ductwork commissioning
engineer. On completion ensure that the
static pressure at the top of the heater does
not exceed that as quoted in the technical
specification in section 2 of this manual
This can be achieved by the use of a
manometer taking a pressure reading in the
plenum of the ductwork. Also check the
running current of the main fan motor.
If the ductwork pressure is correct then the
running current will be as quoted on the data
plate. If the static pressure is too low this
will be verified by a high running current,
which could lead to premature failure of the
fan motor. Consequently, the ductwork outlet
grilles will have to be closed to increase the
static pressure. If the static pressure is too
high this will be verified by a low running
current of the motor, which could lead to
overheating of the heater. The limiter will trip
out. Consequently the duct grilles will have
to be opened.
Typical arrangement of oil storage tank &
single pipe system : see figure 14.
5.4 User
Instructions
(a) Complete all commissioning data on
the commissioning sheet.
(b) Instruct end user in correct operation
and function of heater and ancillary
controls. Particular awareness should
be made to start up and shut down of
the equipment.
(c) Instruct on the safety features of the
heater.
(d) Hand over to the end user a copy of
the ‘User Instructions’ complete with a
copy of the commissioning sheet.
(e) Advise on the need for regular
servicing of the equipment. In
particular that the fan belts will require
tensioning after the first 100 hours of
running.
Figure 14 : Typical arrangement of oil storage tank & single pipe system
1 Drain
valve
2 Filter
pipe
3
Fuel tank tilted to facilitate
drainage
4 Vent
pipe
5 Isolating
valve
6 Isolating
valve
7 Fire
valve
8 Filter
9 Burner
10 Fusible
link
11 Air
nozzles
12 Terminal
cravat
13 Roof
flashing
