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Trianco AZTEC 12, Installation, Operation And Servicing Instructions

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Trianco AZTEC 12 Installation, Operation And Servicing Instructions Download Page 13

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AZTEC COMBI SCHEMATIC LAYOUT CENTRAL HEATING MODE 

Fig 3 

SEALED SYSTEM PIPING SCHEMATIC DIAGRAM 

 

AZTEC COMBI SCHEMATIC LAYOUT DOMESTIC HOT WATER MODE 

 

Fig 4 

Fig 5 

C/H Return

C/H Flow

Plate Heat Exchanger

DHW

Cold Inlet

Diverter

Valve

Expansion

Vessel

C/H

Boiler

DHW

Boiler

Pump

Flow

Switch

Summary of Contents for AZTEC 12

Page 1: ...12kW WALL HUNG MAXI COMBINATION BOILER INSTALLATION OPERATION AND SERVICING INSTRUCTIONS Please read these instructions carefully before installing and operating this appliance TO BE RETAINED BY THE H...

Page 2: ...USER INSTRUCTIONS 7 SIMPLE FAULT FINDING 8 TECHNICAL DETAILS 8 INSTALLATION 9 VENTILATION REQUIREMENTS 11 WATER SYSTEM 11 12 SEALED WATER SYSTEM REQUIREMENTS 12 14 WIRING INSTRUCTIONS 14 WIRING DIAGR...

Page 3: ...ulation When handling avoid inhalation and contact with eyes These may be harmful and cause irritation to the skin eyes nose or throat Use disposable gloves facemasks and eye protection After handling...

Page 4: ...ion The supply voltage to the appliance must never drop below 207 Volts When fitting external controls such as a room thermostat or programmer particular consideration should be given to the wiring of...

Page 5: ...made are found to have no appliance fault Register your boiler online www trianco co uk product registration What to do in the event of an appliance fault or breakdown Step 1 Always contact your insta...

Page 6: ...The Building Regulations and Electrical Wiring Regulations BS 7671 1 Always switch OFF the electrical supply before removing the cover 2 If any part of the boiler is modified then the warranty will be...

Page 7: ...h a thermostatic blending valve it is recommended when commissioning the boiler this is set to 45 C to obtain the best performance from the boiler BOILER INDICATOR LIGHT There are twelve LED indicator...

Page 8: ...und 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 qual...

Page 9: ...TALLED IN A SHOWER COMPARTMENT OR BATHROOM Ensure adequate clearance is allowed for making water connections Access is required to the front and the top of the boiler for servicing The boiler must als...

Page 10: ...10 Fig 1 2...

Page 11: ...Rate Min 6kW 8 litres 9kW 10 litres 12kW 12 litres Aztec boilers are approved for use on fully pumped open vented systems and sealed systems Where thermostatic radiator valves are fitted it will be ne...

Page 12: ...E Failure to ensure the correct vessel size could result in premature failure of the expansion vessel which in turn may adversely affect other components in the system i e circulating pump and diverte...

Page 13: ...NG MODE Fig 3 SEALED SYSTEM PIPING SCHEMATIC DIAGRAM AZTEC COMBI SCHEMATIC LAYOUT DOMESTIC HOT WATER MODE Fig 4 Fig 5 C H Return C H Flow Plate Heat Exchanger DHW Cold Inlet Diverter Valve Expansion V...

Page 14: ...The 12kW boiler must be installed in premises having a system impedance of not more than 0 1939 0 1939 A double pole RCD with a trip level sensitivity of 30ma can be used capable of breaking full load...

Page 15: ...15 Fig 9 Internal Wiring diagram...

Page 16: ...nd disconnect the temperature button cables from the PCB Disconnect the pump and call plug the thermistor plug the fan where fitted and high limit thermostat plug Disconnect all element cables N B Tak...

Page 17: ...op of the heat exchanger and secured in position with a clamp the other end terminates with a white connector that plugs on to the PCB The tank thermistor is fitted on the left hand side of the tank a...

Page 18: ...change Inspect mains terminal block wiring for short circuiting Check electrical elements for earth continuity if element is found to be faulty fit new element Other Information Thermistor Values Ele...

Page 19: ...OR FLASHING CHECK EXTERNAL CONTROLS ARE CALLING FOR HEAT ARE ISOLATING VALVES OPEN IS THE PUMP RUNNING OPEN ISOLATING VALVES CHECK LIVE NEUTRAL TO PUMP LIVE NEUTRAL OK CHECK SYSTEM PRESSURE PIPE WORK...

Page 20: ...THEBOILERGO FROMGREENTO AMBERTHENRED CHANGEPCB REFILTO1BAR CHECKFOR LEAKS ISTHESYTEM PRESSURE SUFFICIENTLY CHARGED ISTHETHERMISTER CABLEFAULTY YES ARETHELIMIT STAT CONNECTIONS OK NO NO NO CHANGEPCB YE...

Page 21: ...LIVE AND NEUTRAL YES NO CHANGE FUSE AND CHECK PUMP YES NO CHANGE PCB CHECK SYSTEM WIRING RESET RCD YES NO FLASHING RED LIGHT ARE CABLES AND CONNECTIONS OK NO IS THERE POWER TO ALL ELEMENTS YES CHANGE...

Page 22: ...22 ITEM PART No DESCRIPTION QUANTITY 1 HEATER BODY W U 1 2 221850 3kW ELEMENT 4 3 221807 GASKET 2 4 ELEMENT FLANGE W U 1 5 BOTTOM FLANGE W U 1...

Page 23: ...QUANTITY 1 226216 Left Hand Side Panel 1 2 226212 Top Panel 1 3 226207 Back Panel 1 4 226215 Front Door 1 5 226216 Right Hand Side Panel 1 6 226211 Control mounting Plate 1 7 226209 Bottom Panel 1 8...

Page 24: ...24...

Page 25: ...nt Wiring Harness 1 11 Mains terminal block 1 12 Temperature Control Buttons Wiring Harness 1 13 Neon Indicator Green 2 14 221921 Pressure Gauge 1 15 Pump 1 16 501938 Diverter Valve Head 1 17 501930 D...

Page 26: ...ited Copyright in this brochure and the drawings and illustrations contained in it is vested in TR Engineering Limited and neither the brochure or any part thereof may be reproduced without prior writ...

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