Instruction manual

GENERAL INFORMATION
ROOM THERMOSTAT:
A room thermostat must be fitted to control the
central heating. Refer to instructions supplied
with the room thermostat for information on
siting and setting.
THERMOSTATIC RADIATOR VALVES:
It is recommended that this type of valve is fitted
to all but one of the radiators (or at least those in
the sleeping accommodation). The remaining
radiator, which must be where the room
thermostat is located, should be un-controlled
and must be left open.
GENERAL INFORMATION
GREENSTAR CAMRAY EXTERNAL 12/18 - 18/25 - 25/32
8 716 112 711a (02.07)
4
INTRODUCTION
Read these instructions carefully to get the best
from your appliance.
CENTRAL HEATING SYSTEMS:
During the first few hours of operation of the
central heating system, check that all radiators
are being heated at an even rate.
If the top of a radiator is at a lower temperature
than the bottom then it should be vented by
releasing air through the venting screw at the top
of the radiator. Ask your installer to show you
how this is done. Repeated venting in sealed
systems will reduce the quantity of water in the
system and this must be replenished for safe
and satisfactory operation of the appliance.
When excessive venting or water leaks are found
in the system you must contact a service
engineer to inspect the installation and rectify
any fault.
Only use additives compatible with the appliance
and system. Use of incompatible additives can
cause damage and will invalidate the appliance
guarantee.
Sealed heating systems:
Where the appliance is fitted to a sealed heating
system your installer will inform you of the
minimum and maximum pressure which must be
indicated on the pressure gauge.
Regularly check the pressure is maintained and
contact your installer or maintenance engineer if
there is a noticeable, permanent drop in
pressure. If the system loses pressure it should
be repressurised and the cause of the loss
investigated.
CONDENSATE:
T
his is a high efficiency appliance using
condensing technology which will under normal
operation produce a regular discharge of
condensate to drain and at times, give out a
plume of water vapour from the flue terminal.