OPERATING THE APPLIANCE
PRESSURE GAUGE (EXTERNAL SYSTEM):
The pressure gauge indicates the boiler/heating
system water pressure and has two pointers:
Red (external) pointer is set manually to indicate
the normal system pressure (1 to 1.5 bar for
sealed systems, 0 to 0.5 bar for open vent
systems).
Grey (internal) pointer shows the actual system
pressure (on sealed systems the pressure will
rise when the boiler/system heats up from cold).
Please check with your installer what type of
system you have.
On sealed systems the red pointer should be set
to the normal operating pressure (1 to 1.5 bar)
and the grey pointer will fluctuate around this
pressure depending on whether the system is
hot or cold. If a sealed system pressure drops
below 1 bar the system should be repressurised
to 1.5 bar and the cause of the drop
investigated. If the pressure rises to more than
2.5 bar please contact your installer for advice.
Regularly check that the pressure is maintained
and contact your maintenance engineer if a
permanent significant drop in pressure regularly
occurs.
On open vent systems the pressure gauge is not
used and the grey pointer will remain at the
bottom of its scale. If the pressure rises to more
than 1 bar please turn off the appliance and
contact your installer for advice.
FROST PROTECTION:
!A frost thermostat is fitted to the
appliance to protect the appliance and
system from the risk of freezing.
!The boiler mode indicator light MUST be
illuminated for the frost protection to
operate.
In the unlikely event that there is no hot
water or heating, remove the front panel
and check for lockout or other fault
conditions.
Check page 9 for fault conditions.
OPERATING THE
APPLIANCE
GREENSTAR CAMRAY EXTERNAL & EXTERNAL SYSTEM 12/18 - 18/25 - 25/32
8 716 115 668a (05.09)
8
USING YOUR
APPLIANCE
