Replacement Of Parts - Potterton Statesman 45/50 Installation & Service Instructions Manual

Sight
Gauge
Isolating
Valve
Draw Off
Pipe
Clean Out Boiler & Check Gaskets For Damage.
Replace If Not In Perfect Condition
Check
Thermostat
Remove
Burner
Clean
Combustion
Head
(LD2SH Model
Shown)
Replace
Nozzle
With One
Of Identical
Type
Fig. 28
40 Servicing & Maintenance
Clean Or Replace Drain Off Sludge
Oil In-line Filter
Disconnect
Air Supply
Clean
Ignition
Electrodes
•
•
In Tank
•
•
Burner
•
Pipe

Replacement of Parts

Isolate the boiler from the Electricity, Oil and
Water supplies before replacing any
Disconnect
components.
Burner Plug
On the sealed system boilers it should be
Disconnect
remembered that the boiler is under system
Suction Line
pressure and, as such, before disconnecting
any parts that enter the water shell, the system
pressure must be reduced and the boiler
drained.
for more than one heating season, a
replacement should be fitted. If a metal fine
microbic filter is fitted then this should be
cleaned with kerosene. Ensure that the filter
bowl is thoroughly cleaned out before
replacement.
Remove the burner
Service the burner, refer to the Burner
Information Instructions.
Clean the boiler
This is required as follows if the boiler was not
cleaned at the end of the heating season:
Remove the expansion vessel assembly (if
fitted) and the front access door from the boiler
Remove the retarders and baffle plate (not
45/50), clean any soot and any hard deposits
from the boiler surface.
Gaskets
It is advisable to replace all gaskets which have
been disturbed unless it is certain that they
are in excellent condition.
Check all thermostats
Test all thermostats to ensure that they are
working correctly. Remove all dust with a soft
brush and make sure that accessible contacts
are clean.
Water system (Sealed system boilers only)
The system water should be topped up as
necessary using the filling system provided.
Filling must be carried out with the system cold
so that the pressure can be brought up to the
original cold fill reading indicated by the red
pointer. A careful watch should be kept on the
pressure gauge during filling and the mains
pressure valve opened slowly.
Topping up may, by arrangement, be a part of
the annual service contract.
Part No. 5102478