Final Adjustments; Instruct The User; Advise The User - Potterton Osprey CF 125 Installation & Service Instructions Manual

Commissioning - Page 19

3.2 Final Adjustments

1 Use a pressure gauge to check the inlet and
burner pressures. See the
Technical Data section for figures.
2 Turn the boiler on and allow to run for 10
minutes.
3 Check that the inlet pressure is 20 mbar
Natural Gas (G20) and 37 mbar for Propane
(G31).
4 Check that the burner pressure is in
accordance with the information in the
Technical Data section.
5 If burner pressure adjustment is required turn
the pressure adjusting screw as required -
See Fig. 13.
6 Check at the gas meter that the gas rate is
correct.
7 Shut down the boiler, remove the pressure
gauges, re-fit the screws and check for gas
soundness.
8 Re-fit the front door.
Control Thermostat
At its minimum and maximum settings, the
thermostat should control the water flow
temperature at approximately 55 °C - 85 °C.
Set the boiler Standby switch to OFF and
check that the main burner shuts down.
Pilot Burner
The pilot is pre-set and no adjustment is
required. When lit the pilot flame envelope
should just cover the electrode tip. If the pilot
flame is not as described, replace as covered
in Section 4.6 - Servicing & Replacement of
Parts.
Overheat Thermostat
The overheat thermostat is pre-set and no
adjustment is possible. It will require manual
re-lighting if an overheat condition occurs (the
pilot will extinguish).
Re-light as detailed on Page 18.
Other Boiler Controls
No further setting or checking is necessary as
all boiler mounted controls are designed so that
if a fault should occur they will fail safe.
External Controls
Check that any other external controls
connected in the system, such as clocks or
thermostats are correctly set and control the
boiler as required.
Spillage Device
Temporarily block the flue and check that the
boiler shuts down within 2 minutes (if the boiler
fails to shut down replace the spillage device as
shown in section 4.3 of the Service and
Replacement of Parts).
Unblock the flue spigot and the boiler should
automatically relight within 10 minutes.

3.3 Instruct the User

On completion of the installation, the installer
should demonstrate the operation of the boiler
and its associated controls.

3.4 Advise the User

1 If a programmer is fitted set the time and
programme the required settings.
2 Hand the Instructions for Use, these Installation
& Service Instructions (and the programmer
instructions) to the User and instruct in the safe
operation of the boiler and controls.
3 Advise the User of the precautions necessary
to prevent damage to the system and to the
building in the event of the system remaining
inoperative during frost conditions.
4 Advise the User that for continued efficient and
safe operation of the boiler it is important that
adequate servicing is carried out at least once
a year by a Potterton Service Engineer or a
C.O.R.G.I. Registered Installer.
5 Leave a permanent card attached to the boiler
giving:
a. Name and address of installer.
b. Date of installation.