Glowworm Lighting 250 I - Manual (Page 18)

8
3 Commissioning
3.1 Filling the secondary circuit
IMPORTANT: Risk of damage! Do not manually open the
temperature/pressure relief valve or the expansion vessel for
venting purposes. Any foreign matter in the pipework may
cause damage to the valve seats.
Make sure the cylinder drain valve is closed.
Open all cold and hot water taps and the corresponding
outlets.
Open the mains water supply to the Flurocyl and fill it with
water until it flows freely out of the outlets. Make sure all air
bubbles have been removed.
Close the outlets and check the system for leaks. Check in
particular the immersion heater connection for leaks.
The system must now be flushed thoroughly.
Open the hot water taps at the opposite ends of the systems
and let the water flow out for at least 5 minutes.
Close the hot water taps.
3.2 Setting the thermostatic mixing valve
The hot water from the solar cylinder can be set to a desired
maximum temperature between 30 °C and 70 °C by mixing
hot and cold water.
Set the hot water thermostatic mixing valve with the adjusting
knob to maintain the householders desired temperature at the
hot water taps.
IMPORTANT: Risk of being scalded by hot water! Set the
thermostat mixer to 60 °C or below and check the temperature
at a hot water tap to ensure effective protection against
scalding.
3.3 Reheat circuit (boiler circuit)
NOTE: Do not use the pressure relief valve of the boiler (if
applicable) for bleeding.
Flush the entire primary central heating system with cold and
hot water. Fill and bleed the central heating system according
to the installation manual of the boiler.
Set the lever on the motorised port valve to MANUAL and
lock it in this position, see diagram 3..
Fill and bleed the central heating system after draining it
completely.
Unlock the lever on the motorised port valve by setting it
back to AUTO.
Start up the boiler, refer to section 3.4, until the solar cylinder
is at operating temperature and all radiators in the system
are warm. Then drain the entire central heating system again
to remove any residue from the pipes. Fill and bleed it again
afterwards as described above.
3.4 Starting up the boiler
Switch on the main switch of the boiler.
Make sure the control device and the thermostats are set in
such a way that heating is necessary.
Check whether the boiler starts up and the water in the solar
cylinder and radiators is heated up according to the hot water
and room thermostat settings.
Perform the commissioning and testing procedures in
accordance with the installation manual for the boiler.
‘A’ PORT ‘B’ PORT
B A
LEVER
Diagram 3.
4
84
Motorised 2 port valve
GB: It is a requirement that the “Benchmark” Installation,
Commissioning and Service Record is completed and left with
the user.
IE: it is necessary to complete a “Declaration of Conformity” to
indicate compliance to I.S.83. An example of this is given in
the current edition of I.S.83.
3.5 Handing over to the householder
l Hand over all manuals to the householder.
l Advise the householder to keep the manuals near to the
system.
l
Draw special attention to the safety instructions which the
householder must follow.
l
Review the user instructions with the householder and
answer any questions.
l
Show the householder how to operate the solar control, CH
control and any separate DHW control.
l
Inform the householder that the cylinder temperature is
factory set at 65°C and that the DHW temperature can be
adjusted using the TMV by the installer.
l
Inform the householder that the immersion heater is
intended as a standby device and should not be used
simultaneously with the boiler to heat the cylinder.
l
Inform the householder that they are not permitted to
change the settings made on the solar system.
l
Inform the householder that to ensure the continued
efficient and safe operation of the solar system it is
recommended that it is checked and serviced at regular
intervals. The frequency of servicing will depend upon the
installation conditions and usage, but in general, once a year
should be enough.
l
Inform the householder that the boiler and solar cylinder
should be serviced by a qualified engineer annually.
Leave these instructions and the “Benchmark” Installation,
Commissioning and Service record document with the user.