Trianco Aztec Mini Guida

Aztec Mini

Combination & System Boiler

INSTALLATION, OPERATION AND

SERVICING INSTRUCTIONS

Please read these instructions carefully before installing

and operating this appliance

TO BE RETAINED BY HOUSEHOLDER

CONTENTS PAGE

HEALTH AND SAFETY 3

PRE-INSTALLATION NOTES 4

AFTER SALES SERVICE 5

IMPORTANT SAFETY NOTES 6

USER INSTRUCTIONS 7/8

FAULT FINDING 9

INSTALLATION - REGULATIONS 10

INSTALLATION – CLEARENCES & VENTILATION 11

INSTALLATION – WATER SYSTEM 12

INSTALLATION – EXPANSION VESSEL SIZING 13

INSTALLATION 14

INSTALLATION – PIPEWORK LAYOUT 15

INSTALLATION – WIRING-EXTERNAL CONTROLS 16

INSTALLATION – TECHNICAL DETAILS COMBI 17

INSTALLATION – TECHNICAL DETAILS SYSTEM 18

BOILER SPARES 19/20

HEALTH AND SAFETY

INFORMATION FOR THE USER, INSTALLER AND SERVICE ENGINEER

Under the Consumer Protection Act 1987 and the Health and Safety at Work Act 1974, it is a requirement to provide

information on substances hazardous to health (COSHH Regulations 1998).

TR Engineering takes every reasonable care to ensure that its products are designed and constructed to meet these safety

requirements when the products are properly installed and used. To fulfil the requirements, products are comprehensively

tested and examined before despatch.

When working on the appliance, it is the responsibility of the user or engineer to ensure that personal protective clothing or

equipment appropriate to parts that could be considered hazardous or harmful is worn.

This appliance may contain some of the items below:

Insulation and Seals

Glass rope, mineral wool, insulation pads, ceramic fibre and glass insulation.

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, wash hands and other exposed areas. When disposing of materials, limit dust and the risk of inhalation by using

water spray. Ensure materials are securely wrapped.

Seek urgent medical attention if inhaled or ingested. Exposure to eyes and skin should be followed by immediate cleansing of

the affected areas and medical attention if necessary.

Glues, Sealants and Paints

The glues, sealants and paints used present no known hazards when the appliance is used in the manner for which it is

intended.

Notes:

a) Electrical safety checks should be carried out by a competent person.

b) It is a requirement of the guarantee and any extended warranty that an annual service is carried out by a competent

person.

Installation Engineers Signature

Company Name (if applicable)

Company Address

Company Tel. No.

Please read these instructions fully before installing this appliance.

If in doubt seek expert advice

These instructions should be kept in a place close to the appliance for easy reference.

IMPORTANT PRE-INSTALLATION NOTES

Before installation, it is imperative that the following guidelines are heeded to ensure the trouble-free and efficient

operation of the boiler:

Ventilation and Siting

When siting the boiler in a confined space it is essential that adequate ventilation be provided. This will ensure that air can

circulate freely around the appliance keeping down the ambient temperatures. Refer to Ventilation requirements (Page 11)

for further details.

Ensure that the area surrounding the boiler is kept free of items which would impede the good ventilation of the appliance

(e.g. towels, linen, etc).

When siting the boiler, consider the potential requirement for future servicing. Enough space should be provided at the front

of the boiler to enable an engineer to adequately service and/or replace items such as the PCB or heat exchanger. Space

should also be available for the removal of the front casing panel. Please refer to siting information (Page 11) for clearance

dimensions. The boiler must be sited vertically and away from strong magnetic fields.

Power Supply and Wiring

The power supply to the premises must meet the minimum requirements of the unit being installed, with special attention

paid to the supply current, cable size, and RCD recommendation. The supply voltage to the appliance must never drop below

207 Volts.

System

Isolation valves must be fitted on both the flow and return pipe work. These are useful as from time to time the boiler may

require draining of water, and the lengthy drawing-off process can be avoided by the astute placement of these valves.

Ensure that any isolation valves are open before first use, and that the system is full of water.

IMPORTANT:

General Information:

To keep your boiler running efficiently DO NOT OBSTRUCT OR COVER any ventilation air inlet on the appliance or the

compartment where it is installed.

To keep the casing clean, switch ‘OFF’ the boiler at the electrical supply, and simply wipe with a damp cloth. DO NOT use

abrasive cleaning fluids as this may damage the stove enamel paintwork.

TR ENGINEERING LTD CUSTOMER AFTER SALES SERVICE INFORMATION

A step by step guide to reporting a fault with your appliance

A qualified field SERVICE ENGINEER is available to attend a breakdown or manufacturing fault occurring whilst the appliance

is under warranty.

The appliance must be made available for service during normal working hours, Monday to Friday (no weekend work or bank

holidays accepted).

A charge will be made where:

 Our Field Service Engineer finds no fault with the appliance.

 The cause of a breakdown is due to other parts of the plumbing/heating system or with equipment not supplied by

TR Engineering Ltd.

 Where the appliance falls outside the warranty period (see terms and conditions enclosed).

 The appliance has not been correctly installed, as recommended (see installation, operating and servicing

instructions.)

NOTE: Over 50% of all service calls made are found to have no appliance fault.

What to do in the event of an appliance fault or breakdown:

Step 1: Always contact your installer in the first instance, who must thoroughly check all his work PRIOR to requesting a

service visit from TR Engineering LTD.

Step 2: If your appliance has developed an in-warranty fault your installer should contact TR Engineering LTD for

assistance from site.

What happens if my Installer/engineer is unavailable?

Step 3: Contact TR Engineering LTD. We will provide you with the name and telephone number of our Service Agent.

However, a charge may apply if the fault is not covered by the appliance warranty (payment will be requested on site by our

independent Service Agent).

PLEASE NOTE: UNAUTHORISED INVOICES FOR ATTENDANCE AND REPAIR WORK CARRIED OUT ON THIS APPLIANCE BY ANY

THIRD PARTY WILL NOT BE ACCEPTED BY TR ENGINEERING LTD

SERVICE CENTRE AND TECHNICAL SUPPORT

Tel: 0114 257 2300 Fax: 0114 257 1419

Hours of Business

Monday to Thursday 8.30am - 5pm

Friday 8.30am - 2.30pm

IMPORTANT SAFETY NOTES

INTRODUCTION

The Aztec Mini Electric Combination and System Boiler is a wall mounted electric central heating boiler

designed with smaller properties in mind. Access is required to the front of the boiler for servicing. Once the

boiler is switched on it is fully controlled by an automatic management system which monitors the safety and

running functions of the boiler. Designed to work on a fully pumped wet system only. The boiler produces hot

water by passing water over electric heating elements housed in an insulated heat exchanger.

The boilers incorporate inverter constant temperature technology which automatically adjusts output to

match demand.

Read these instructions before installing your boiler.

The heating system must comply with the latest editions of British Standards 5449 and 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 invalidated.

We recommend that you keep these instructions in a place near your appliance for easy reference.

The Trianco Aztec Mini Combination and System Wall Mounted Boiler has been designed

to conform to

European Directive/Standards EN60335-1:2002 +A15:2011, EN60335-2-35:2002 inc Amd 1,

EN55014-1:2006 +A1:2009, EN55014-2:1997 +A2:2008.

THE PERSON(S) WHO INSTALLS THIS APPLIANCE, SERVICES OR CARRIES OUT ANY

REMEDIAL WORK, I.E. ELECTRICAL FAULT FINDING, MUST HAVE SUITABLE ENGINEERING

QUALIFICATIONS.

WARNING: DO NOT SWITCH ON THIS APPLIANCE IF THERE IS ANY POSSIBILITY THAT THE

WATER MAY BE FROZEN.

THE INSTALLATION OF THIS APPLIANCE MUST MEET THE REQUIREMENTS OF THE

CURRENT ISSUE FOR ELECTRICAL INSTALLATIONS IEE WIRING.

USER INSTRUCTIONS

The Trianco Aztec Combination 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.

IMPORTANT

DO NOT COVER OR BOX IN YOUR BOILER WITHOUT MAKING SUITABLE PROVISION TO 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

INSIDE THE HEAT EXCHANGER IS FROZEN

Before turning the boiler on, ensure the system is full of water and all valves fitted to the system are open.

Switch on the power supply, display will illuminate, and one audible tone should be heard. Observe any error

codes – Refer to table on Page 9.

Boiler Multi-Function Display

Press ON/OFF button to turn boiler on – Standby

In Standby Mode

Power and Heating symbol illuminated, no call from WIFI Thermostat.

Setting Boiler Thermostat

Press “UP” Once – Set Temperature Flashes, Use “UP” or “DOWN” to set Temperature between

30°C - 85°C Press “Confirm” to store.

Setting Domestic Hot Water (DHW) Temperature. Combination Boiler Only

Boiler OFF – Power symbol not illuminated

Press “UP” Once – DHW Temperature Flashes, Use “UP” or “DOWN” to set Temperature between

30°C - 55°C Press “Confirm” to store.

USER INSTRUCTIONS

In Standby Mode

Setting Day of Week

Press “Mode” Four times – Day of Week Flashes, Use “UP” or “DOWN” to set current Day Number

1 – 7 Press “Confirm” to store.

Setting Time

Press “Mode” Twice – Hours Flashes, Use “UP” or “DOWN” to set current time.

Press “Confirm” to store.

Press “Mode” Three times – Minutes Flashes, Use “UP” or “DOWN” to set current time.

Press “Confirm” to store.

In Run Mode

Pressing “Time” will cycle between Manual ON/OFF and Timed.

Programmed times must be set using the WiFi thermostat, see separate instructions supplied with the

thermostat.

Restore to Factory Settings

Press “MODE” for 5 Seconds, When the buzzer sounds Factory settings have been restored

Child Lock

Press “CONFIRM” for 3 Seconds, all keys are locked until “CONFIRM” is pressed again for 3 seconds

Frost Protection

In Standby the boiler will monitor the real time water temperature.

If the water temperature is < 5°C the boiler will run automatically until the water temperature has reached

15°C. The heating element will turn off, the pump will continue to run for 5 Minutes.

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.

FAULT FINDING

Information codes

Code Protection Function Description

Current leakage Moisture on circuit board or the

boiler has condensation internally

Qualified engineer to remove

cover and dry/inspect circuit

board

Water temperature

sensor

Sensor is short circuit or open circuit Check sensor connection. Check

sensor cable and replace if

required

Indoor temperature

sensor

Sensor is short circuit or open circuit

Check sensor connection. Check

sensor cable and replace if

required

Low Water Pressure System is low on water Fill to correct pressure using

filling loop

No water Flow

Air in the system, no water or water

pump not working, pump is blocked,

water flow switch blocked, water flow

switch is faulty

Vent system. Check system

pressure. Check pump and flow

switch for blockage/operation

Dry Fire Protection No water flow Fill system and vent

Press and hold TIME key for 6

seconds to re-set

The boiler has built in over temperature protection. If the water temperature exceeds 140°C the limit

thermostat will trip and the screen will be blank.

The thermostat will require re-setting by a qualified person.

INSTALLATION

Regulations

Installation of the boiler must comply with the following British Standards and Regulations:

BS5449 – Forced circulation hot water central heating systems.

BS7074-Part 1: Code of practice for sealed water systems.

The Building Regulations: Part ‘L’ (Northern Ireland)

Current I.E.E. Regulations

Local water undertaking By-laws.

Health and Safety at Work Act

The installer should be aware of his responsibilities under the Act and provide where necessary, appropriate

protection for persons carrying out the installation. In the interests of safety, a competent engineer should

install the boiler and all wiring must be carried out in accordance with current IEE regulations.

IMPORTANT

ALL ELECTRICAL WORK MUST BE CARRIED OUT BY A QUALIFIED ELECTRICAL ENGINEER TO CURRENT IEE

WIRING REGULATIONS.

UNPACKING THE BOILER

Carefully open the boiler carton, remove boiler and place in a safe place until required.

NOTE: ALWAYS STORE THE BOILER IN A DRY PLACE PRIOR TO FITTING.

SITING THE BOILER

IMPORTANT: NOT TO BE INSTALLED IN A SHOWER

COMPARTMENT OR BATHROOM

Ensure adequate clearance is allowed for making water connections. Access is required to the front of the

boiler for servicing. The boiler must also be fitted in a dry well-ventilated position, which is not subject to

adverse temperature conditions. (See ventilation requirements).

Care should be taken when siting the appliance to make sure adequate access is available for future servicing

of the appliance. Please note that the PCB and heat exchanger assembly may require removal during such

times.

The front cover is held in position by four Phillips Head screws, two at the top and two at the bottom.

Clearance at the top and bottom of the boiler should be adequate to allow access with a small Phillips

screwdriver.

When removing the cover please unplug the cable between the display and main circuit board.

The boiler must be mounted on a suitable wall capable of bearing the weight of the boiler.

Utilise all 6 fixing points on top and bottom fixing brackets.

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