BOILER CONTROL THERMOSTAT
The boiler control thermostat is fully adjustable allowing
you to select the required temperature of the water leaving
the boiler.
The boiler thermostat operates between 55°C (low) and
82°C (high).
Note:
Where a cylinder thermostat or room thermostat is
fitted ensure that the boiler thermostat is set above or
equal to the highest setting.
The thermostat is switched off when the knob is turned
fully anti-clockwise with pointer opposite ‘O’
HIGH LIMIT THERMOSTAT
(Hand Reset)
The high limit thermostat is factory set and requires no
adjustment. Should the boiler thermostat malfunction,
the limit thermostat will take over and shut down the
boiler. The red light will illuminate when limit thermostat
has operated.
If the limit thermostat operates frequently, consult your
Service Engineer as there may be a fault in the system.
To reset the limit thermostat, remove the front panel and
push in button.
Note: The limit thermostat can only be reset when the
water temperature has dropped at least 20° C.
BURNER LOCK-OUT
If the burner has failed to light, the boiler will go into lock-out
mode. The illuminated reset button on the burner control
box will indicate this. To reset the burner press the
illuminated reset button. In case of the burner not firing
and the boiler returning to lock-out mode, wait a further
minute and then press the reset button again. If the burner
still fails to start, switch off the electrical supply to the boiler.
WARNING - DO NOT ATTEMPT TO START BURNER
MORE THAN TWICE
(See Simple Fault Finding before contacting your
Service Engineer).
1. USER INSTRUCTIONS
HOW TO USE YOUR TRIANCO
BOILER
The Trianco EuroStar Condensing boiler has been
designed and constructed to give years of trouble free
service. These instructions are provided to assist you in
obtaining the best performance with the least trouble and
cost.
The boiler will provide both domestic hot water and
central heating with the simplest of controls.
The boiler is supplied with adjustable boiler control
thermostat, manual reset high limit thermostat and an
option for fitting a programmer kit.
On the control panel there are three neon indicator lights.
(See Fig 1 below)
Green -
Power on to the boiler
Amber -
Boiler is calling for heat
Red -
Limit
Thermostat
Light
TO FIRE THE BOILER
Before firing the boiler, ensure the system is full of water,
there is sufficient oil in the storage tank and all valves are
open.
1.
Check that the Time-switch/Programmer (if fitted) is
ON and the room thermostat is calling for heat.
2.
Set the boiler thermostat to the desired temperature.
3.
Switch on the electrical supply to the boiler. The green
and amber neon lights will illuminate and the burner
should fire after a few seconds of fan pre-purge.
4.
Set the Time-switch/Programmer (if fitted) to the
times and programme required.
5.
The boiler will now operate automatically, cutting in
and out according to the heat demand.
TO STOP THE BURNER
The burner may be stopped by turning the Boiler Control
Thermostat fully anti-clockwise to the OFF position ‘O’.
If the boiler is to be off for a long time, it is recommended
that the mains supply to the boiler is switched off or the
Time-switch/Programmer (if fitted) is switched to the OFF
position.
1
Programmer
(optional)
Boiler Control
Thermostat
High Limit Thermostat
(under Control Panel)
BOILER CONTROL PANEL
BURNER
LOCK-OUT LIGHT
& RESET BUTTON
(PUSH TO RESTART
BURNER)
Green
Amber
Red
Fig. 1
Fig. 2
Summary of Contents for EuroStar Premier 50/90 Condensing
Page 10: ...FIG 5 WIRING DIAGRAM 7...
