Commission The Boiler - Potterton Suprima 100 Installation & Service Instructions Manual

Commissioning - Page 20

3.1 Commission the Boiler

Open Vented Systems - Remove the pump and flush
the system thoroughly with cold water. Re-fit the pump.
Fill and vent the system then check for leaks.
Sealed Systems - Note: The system can be filled using
a sealed system filler pump with a break tank or by any
other method approved by the Local Water Authority.
Remove the pump and flush the system thoroughly with
cold water. Re-fit the pump. Fill and vent the system
until the pressure gauge registers 1.5 bar (21.5 lbf/in²)
and check for leaks. Raise the pressure until the safety
valve lifts, this should occur within ± 0.3 bar of the
preset lift pressure of 3 bar. Release water to attain the
correct cold fill pressure.
All Systems
Warning: Before lighting the boiler, ensure that the
outer white case has been correctly fitted and that
the sealing strip fitted to the outer white case is
forming a tight seal with the main boiler chassis.
The controls cover is left off at this stage.
Preliminary electrical system checks. These checks
must be carried out before attempting to light the boiler.
They are:- Earth Continuity, Short Circuit, Polarity &
Resistance to Earth.
1) The whole of the gas installation must be checked
for soundness and purged in accordance with BS
6891.
2) Set the boiler temperature control knob to 'O'
Standby.
3) Turn the boiler gas service cock to the 'On' position
and that the main gas supply is turned 'On'.
4) Make sure that the system is full of water and that
the pump and radiator isolating valves are open.
Vent air from the system.
5) Ensure that the main electricity supply is 'On'.
6) Check that the time control, if fitted, is in an 'On'
position and that the room and cylinder thermostat,
where fitted are set to high temperatures.
First time lighting:
7) Set the temperature control knob to its maximum
setting.
The boiler will attempt to light, if the boiler does not light
within 3 attempts (due to air in the system) the boiler
controls will go to 'Lockout' and the upper Red LED on
the control panel will go to a rapid flashing mode. To re-
start the lighting sequence press the reset button on the
control panel. There will be a short delay before the
lighting sequence starts.
When the boiler burner flame has established and the
burner lights the lower Green LED on the user control
panel will be on continuously.
LED Indicators
Status
Mains ON Only
Ext. Call for Heat
(Boiler set to STNDBY
Temp. Control set to 'O' Off)
Ext. Call for Heat
(STNDBY switch to ON,
Temp. Control set to Max.)
Ignition
(i.e. Gas and Sparks ON)
FLAME Detected
Boiler Temperature
Control Satisfied
8) With the main burner running, check for gas
soundness using leak detection fluid.
9) Allow the system to reach maximum working
temperature and examine for water leaks. Set the
temperature control to 'Standby' and drain the
system whilst still hot.
Note: Should the boiler fail to operate correctly refer to
the Fault Finding Guide and the boiler wiring diagram
for further information.
10) Re-fill and vent the system making a final check for
leaks.
On sealed systems adjust to the correct cold fill
pressure. Set the pressure gauge pointer to the system
design pressure.
If a by-pass circuit is fitted the by-pass valve should be
adjusted with the boiler operating under minimum load
conditions to maintain sufficient water flow through the
boiler to ensure that the overheat thermostat does not
operate under normal conditions.
Green LED Red LED
OFF ON
FLASHING ON
2 Per Sec.
FLASHING OFF
2 Per Sec.
FLASHING OFF
16 Per Sec.
ON OFF
FLASHING ON
2 Per Sec.