Supplied By www.heating spares.co Tel. 0161 620 6677
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2. USERS INSTRUCTIONS
The boiler thermostat control is located on the front face
at the top right hand side of the boiler.
The Trianco Aztec boiler has been designed and
constructed to give years of trouble free service and
these instructions are provided to assist you in obtaining
the best performance with the least trouble and cost.
The boiler is fully automatic in operation and requires
little attention other than the setting of the thermostat and
any external system controls such as a room thermostat
and time switch.
IMPORTANT
DO NOT COVER OR BOX IN YOUR BOILER, ALLOW
AIR TO CIRCULATE FREELY AROUND THE APPLIANCE
WARNING: DO NOT ATTEMPT TO SWITCH ON THE
BOILER IF THERE IS ANY POSSIBILITY THAT THE
WATER HEAT EXCHANGER IS FROZEN
Before firing the boiler, ensure the system is full of water
and any valves fitted to system are open.
Check that the time switch/programmer (if fitted) is ON
and the room thermostat is calling for heat.
Set the boiler thermostat to the required temperature.
Switch on the electrical supply to the boiler and after a few
seconds the boilers’ green and amber light should illuminate.
Set the time switch/programmer (if fitted) to the times and
programmers required.
The boiler will now operate automatically, cutting in and
out according to heat demand.
TO TURN OFF THE BOILER
Switch off the boiler at the time switch/programmer
(if fitted)
If the boiler is to be switched off for any length of time it
is recommended that the mains supply to the boiler is
switched OFF.
BOILER CONTROL THERMOSTAT
The boiler control thermostat enables you to select the
temperature of the water leaving the boiler. It is
calibrated between Low and High.
Using a small screwdriver set the temperature by turning
the knob to the required setting.
The thermostat switches between low and high (50°C
and 80°C).
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BOILER INDICATOR LIGHT
There are three LED indicator lights on the boiler fascia
panel these are:
GREEN
Power on to the boiler
AMBER
Illuminated - In run mode
Flashing - Temperature Satisfied
RED
Boiler Fault
If the red LED light flashes, this means a fault has occurred.
This would result in the boiler continuing to operate at a
reduced output.
If the red LED is permanently on, this indicates a fault
has occurred. (See simple fault finding chart on page 4).
ROOM THERMOSTAT
The room thermostat should not be positioned near a
source of heat such as a radiator or exposed to the sun
as this will cause the central heating to switch off before
the room is up to temperature. Follow the manufacturer’s
instructions for best siting position for the thermostat.
FROST PROTECTION
If the boiler and central heating is shut down for many
hours during very cold weather, the water may be in
danger of freezing and, as such, it is advisable to protect
the installation with a frost thermostat.
Where the system is not protected, the boiler should be left
switched on and the room thermostat set to a low setting
e.g. 7°C (45°F) to prevent the building temperature falling
too low.
If the system is shut down for a long period during very
cold weather, it is advisable to completely drain the
system. However, frequent draining should be avoided,
especially in hard water areas, as this could lead to
scaling of the boiler waterways.
WARNING: DO NOT SWITCH ON THIS APPLIANCE IF
THERE IS ANY POSSIBILITY THAT THE WATER HEAT
EXCHANGER IS FROZEN.
TIME SWITCH/PROGRAMMER
When choosing the operating times for your boiler, it is
useful to remember that central heating usually takes
between half an hour to an hour before it becomes effective.
It is suggested that the Time Switch/ Programmer is set to
bring on the heating about an hour before heating is required.
It is also worth noting that the heating system will usually
remain effective for up to half an hour after boiler shutdown.
The timer can therefore be switched off earlier as an
economy measure.
Cleaning Casings
Use hot soapy water applied with a damp cloth for the
enamel, then dry with a soft dry cloth.
Simple Maintenance
Ensure that the natural ventilation around the boiler is not
obstructed. If fitted in a compartment ensure all ventilation
grilles are clear.
