8
SIMPLE FAULT FINDING
If the boiler fails to start for no apparent reason, make the
following checks before calling your service engineer.
Is the green LED light illuminated?
Check for blown fuse or thrown power breaker. If
replacement fuse or power breaker fails again, call your
service engineer.
If the red LED is permanently illuminated, contact
your service engineer.
Flashing red LED indicates an open circuit. The boiler can
still be operated. Your service engineer should be
contacted.
Amber light illuminated or flashing.
Check to see if all external controls i.e. programmer or
room thermostat is calling for heat.
Resetting the boiler
If a fault has occurred and the LED is illuminated but the
pump continues to run, then switching the power off for
30 seconds and then on again should reset the light. This
may be caused by the ambient temperature around the
boiler being too high. Check to ensure that any boiler
ventilation is not obstructed. If the fault reoccurs, contact
your engineer.
IMPORTANT: Electrical safety checks should be carried
out by qualified electrical engineer.
TECHNICAL DETAILS
UNIT
AZTEC 6kW
AZTEC 9kW
AZTEC 12kW
Electrical Input
kW
6
9
12
Supply Current
Amp
25
39
51
RCD Rating
Amp
32
40
63
Minimum Cable Size
mm
4
6
16
D.H.W Draw Off@40°C-45°C
Ltr
80
95
110
Flow rate@45°C
Ltr/min
10
10
10
Weight
kg
65
Water Content
litres
41
Width
mm
500
Depth
mm
300
Height
mm
1010
Mains Supply
230V 50Hz
Max Operating Pressure
300 kPa / 3 bar
Test Pressure
600 kPa / 6 bar
Boiler Flow Temperature
Adjustable between 35°C and 75°C
Limit Thermostats
Factory set at 100°C
CH Flow & Return
22mm Compression
DHW Inlet & Flow
15mm Compression
Maximum Flow Temp CH
75°C
Pressure Gauge
0 – 4 bar
Pressure Relief Valve
3 bar
Diverter Valve
Danfoss HSA3ND
Pump
25/60
Expansion Vessel
7Ltr charge 0.5mbar
Available System Head
3m
Casing Finish
Stove enamelled white
Thermal Insulation
Insulated with mineral fibre
