Servicing Instructions - Potterton Prorile Prima 30e Installation And Servicing Instructions

Regular skilled servicing and cleaning of the appliance is
essential to ensure continued safe and efficient operation.
The frequency of cleaning will depend upon the particular
installation conditions, and the use to which the appliance
is put, but in general, once per year should be adequate.
It is the law that all gas appliances are installed and
serviced by competent persons as stated in Gas Safety
(Installation and Use) Regulations 1984.
For Health and Safety Information see back page.
Servicing is best arranged by a contract placed with
Potterton Myson Limited and further details are available
from the local Potterton Regional Service Office.
The boiler DATA PLATE and WIRING DIAGRAM are
attached to the inside of the controls cover. The boiler
CODE NUMBER which should be quoted when ordering
spares or requesting information is on the front of the
control box. See FIG. 2.
All parts likely to require servicing are readily accessible.
By removing the cover from the boiler controls and
removing the front door from the boiler, most components
are exposed. Remove the front of the combustion chamber
to gain access to the main and pilot burner and the ignition
electrode.
Removal of the flue elbow, fan and fluehood will expose
the flueways in the heat exchanger for cleaning.
The following notes apply to the boiler and its controls but it
should be remembered that attention must also be paid to
the heating circuit itself including radiator valves,
thermostats, the time control and the expansion and
FIG. 28 BURNER AND GAS CONTROL ASSEMBLY
SERVICING INSTRUCTIONS - Page 21
feed water system. It is advisable to clean the boiler
immediately after the end of the heating season.
In all cases prior to servicing, light up the boiler and
check that the pilot and main bumers have a clean, even
flame and that the gas rate and main burner pressure are
correctly set. If the pilot flame is satisfactory, no further
servicing of the pilot burner is necessary and the
information given in '3. PILOT BURNER' can be ignored.
WARNING
Before the start of any servicing work, switch off at the
external electricity supply by disconnecting the supply plug
at the socket or switching off the external isolating switch.
Turn off the gas service cock.
NOTE: After completing any servicing or replacement of
components check for gas soundness and carry out
functional checks.
1. PREPARING THE BOILER FOR SERVICING
See FIG. 13.
NOTE: Boilers with side or rear flues have a flue
elbow fitted to the fluehood.
The elbow is replaced by an adapter on vertically flued
boilers.
A. Remove controls cover by opening the door covering
the securing screw on the underside of the controls
cover, see FIG. 13. Undo securing screw, pull controls
cover forward 10mm, lower it to release it from its four
side fixings and pull forward clear of the thermostat
knob.
B. Remove door by undoing the lower fixing screws and
lift door off the two upper hinge brackets.