Ariston MicroGENUS 23 MI Manuale utente

User’s

Manual

Dear Customer,

Thank you for choosing an ARISTON

boiler.

We guarantee that your boiler is a reliable

and technically sound product.

This User's Manual provides detailed

instructions and recommendations for

proper installation, use and maintenance.

Remember to keep this manual in a safe

place for future reference i.e. by the gas

meter.

Your local MTS Servicing Centre is at your

complete disposal for all requirements.

The guarantee on this appliance is

valid for 24 months from the first

day of installation.

Repairs to the electric, hydraulic

or gas circuits may be carried out

only by your local authorised MTS

Servicing Centre.

Every attempt has been made to avoid

errors of any kind

in this User's Manual, the Management

invites customers to inform

of any inaccuracies which they may find.

This will help to improve our service

GROUP

TABLE OF CONTENTS

1. GENERAL INFORMATION page 4

Technical Information page 5

Control Panel page 6

2. OPERATING INSTRUCTIONS page 8

3. USEFUL INFORMATION

AND TROUBLESHOOTING page 14

4. MAINTENANCE page 16

5. CHANGE OF GAS TYPE page 16

6. TIME CLOCK page 17

IMPORTANT!

Please read this manual carefully.

For additional information, please consult the “Installation and Servicing

Instructions.”

Make sure to keep the manuals provided with the appliance so that they

can be used by the end-user, installer or our authorised engineer.

1.GENERALINFORMATION

MTS (GB) Limited support the

initiative.Your installer will give you, and

show you how to use, a logbook which will

give you important information about your

boiler, and heating system.Please have

this logbook to hand whenever you

contact a service engineer or us.

All CORGI Registered Installers carry a

CORGI ID card,and have a registration

number.Both should be recorded in

your boiler logbook.You can check

your installer is CORGI registered by

calling CORGI direct on :- (01256)

372300.

This is a combined appliance for the

production of central heating (C.H.) and

domestic hot water (D.H.W.).This

appliance must be used onlyfor the

purpose for which it is designed.The

manufacturer declines all liability for

damage caused by improper or negligent

use.

Do not allowchildren or inexperienced

persons to use the appliance without

supervision.

If you smell gas in the room, do not turn

onlight switches, use the telephone or

any other object which might cause

sparks.

Open doors and windows immediately to

ventilate the room.

Shut the gas mains tap (on the gas meter)

or the valve of the gas cylinder and call

your Gas Supplier immediately.

If you are going away for a long period of

time, remember to shut the mains gas tap

or the gas cylinder valve.

Before any intervention within the

boiler it is first necessary to cut off the

electrical power supply by turning the

external switch to “OFF”.

This manual may be kept in the front

panel of the boiler.

TECHNICAL INFORMATION

GENERAL DATA

Heating input max-min

Heating output max-min

Efficiency at Maximum Thermal Capacity (see

installation instructions)

CENTRAL HEATING

Operating Temperature max-min

Maximum-Minimum Heating Pressure

Built-in expansion vessel - Total capacity

DOMESTIC HOT WATER

Maximum-Minimum Temperature of

Water for Domestic Use

Working pressure max-min

Flow rate ∆T 25°C

Flow rate ∆T 35°C

Minimum flow rate

ELECTRICAL DATA

Electrical Supply/ Frequency

Power Consumption

Protection of Electrical System

CATEGORY

Nominal Pressure/Methane Gas (G20-G25)

Nominal Pressure/Liquid Gas (G30-G31)

°C

bar

litres

°C

bar

l/min

V/Hz

mbar

25.6-11.0

23.8-9.7

92.9

82-42

3-0.7

56-36

8-0.2

13.6

9.7

2.6

230/50

140

X4D

20-25

30-37

23 kW 29.8-12.0

27.8-10.5

93.5

82-42

3-0.7

56-36

8-0.2

2.6

230/50

155

X4D

20-25

30-37

27 kW

CONTROL PANEL

23 MI

23/27 MFFI

LEGEND:

A - On/Off knob

B - Domestic hot water temperature

adjustment knob

C - Central heating selection

(winter) and temperature

adjustment knob

D - On/Off L.E.D. (green)

E - Fume sensor L.E.D. (yellow)

F - Ignition failure (lockout)

L.E.D. (red)

G - “Economy/Comfort”mode

selection knob

H - Ignition failure (lockout) and/or

overheat reset button

I - Overheat L.E.D. (red)

J - Low system water level

L.E.D. (red)

K - Central heating temperature

L.E.D (yellow)

L - Time clock

M - Heating system pressure gauge

2. OPERATING INSTRUCTIONS

CAUTION

Installation, start-up, adjustments

and maintenance must be performed

by a competent person only, in

accordance with the current Gas

Safety (Installation & Use)

Regulations and the instructions

provided. Improper installation may

cause damage or injury to

individuals, animals and personal

property, for which the manufacturer

will not be held liable.

To ensure efficient and safe

operation it is recommended that

the boiler is serviced annually by a

competent person.

If it is known or suspected that a

fault exists on the appliance, it must

not be used until the fault has been

corrected by a competent person.

HELPFUL SUGGESTIONS

To get the most out of your boiler, we

have provided you with some useful

advice on proper use and

maintenance:

- Periodically check the system

pressure using the pressure gauge

“M”, make sure that the pressure is

between 1.0 and 1.5 bar (the blue

part on the gauge) when the system

is off and cool. The warning L.E.D.

“L”will indicate if the pressure is

below the minimum recommended

value. Consult your installer for

checking and refilling the system.

- The outer panels of the unit's case

must only be cleaned with a damp

cloth. Do not use abrasive cleaners.

The control panel can be wiped with

either a damp or dry cloth. Spray

polishes must not be used on the

control panel surface or knobs. Care

must be taken in preventing any

liquid entering the appliance.

PRACTICAL TIPS

- If the water is very hard, it is

recommended that a water softener

be added to the system so as to

reduce the formation of limescale in

the boiler exchangers. This will

ensure that the efficiency of the unit

remains the same over time,

reducing gas consumption and

maintenance costs.

- If the boiler should be out of use for

a prolonged period, it is

recommended that the electrical

power supply be disconnected and

that the external gas cock be closed.

If low temperatures are expected,

the boiler and system pipe work

should be drained in order to prevent

frost damage.

- To improve comfort and take full

advantage of the heat produced by

the boiler, it is recommended that an

external (room) thermostat be

installed.

- It is good practice to clean and

service the appliance and central

heating system every year.

Call an Authorised Service Centre.

IGNITION PROCEDURE

Turn the selector knob “A”to the “J”

position. The green L.E.D. “D”will

illuminate indicating that the boiler is

ready to operate. The centralised

electronic control unit will ignite the

burner, without any manual intervention

but in response to the request for

domestic hot water or heating. If, after

approximately 10 seconds, the burner

has not ignited, the boiler safety

devices will shut off the gas and the red

L.E.D. “F”illuminates. To reset the

ignition system, the reset “H”must be

pressed and released. Should the

boiler fail to ignite a second time, check

that the external gas cock is open.If the

problem persists, contact an

Authorised Service Centre.

WINTER AND SUMMER

OPERATING MODES

In the ‘winter operating mode’, the

boiler will produce both central heating

and domestic hot water. In the ‘summer

operating mode’, the boiler will produce

only domestic hot water.

Using the knobs on the control panel,

DAH

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