Unical M 3000 S Installation And Servicing Instructions

INSTALLATION
AND SERVICING
INSTRUCTIONS

GB

00333624 - 1st edition - 09/10

M 3000 S

®

2

CONTENT

1 GENERAL INFORMATIONS .................................................................................................................................................... 3

1.1 Symbols used in the manual .............................................................................................................................................. 3

1.2 Proper use of the appliance ............................................................................................................................................... 3

1.3 Water treatment ................................................................................................................................................................... 3

1.4 Information to be passed to the user .................................................................................................................................. 3

1.5 Instructions for the safety .................................................................................................................................................... 4

1.6 Data of the appliance ......................................................................................................................................................... 5

1.7 General instructions ........................................................................................................................................................... 5

2 TECHNICAL FEATURES AND DIMENSIONS ........................................................................................................................ 6

2.1 Technical features .............................................................................................................................................................. 6

2.2 Dimensions ......................................................................................................................................................................... 6

2.3 Main components ............................................................................................................................................................... 8

2.4 Hydraulic circuitsi ............................................................................................................................................................... 9

2.5 General features ................................................................................................................................................................. 9

3 INSTRUCTIONS FOR THE INSTALLER ................................................................................................................................10

3.1 General instrcutions ........................................................................................................................................................ 10

3.2 Norms for the installation................................................................................................................................................. 10

3.3 Packaging ........................................................................................................................................................................ 11

3.4 Placement of the appliance ............................................................................................................................................. 12

3.5 Mounting of the appliance ............................................................................................................................................... 13

3.6 Hydraulic configurations ................................................................................................................................................. 13

3.7 Connection to the heating site ........................................................................................................................................ 14

3.8 Installation examples .......................................................................................................................................................................15

3.9 Electrical connections ..................................................................................................................................................... 16

3.10Examples of hydraulic connections ................................................................................................................................ 17

3.11Electrical diagrams .......................................................................................................................................................... 21

3.12 Adjustment of the modules in simple installations ........................................................................................................ 24

3.13 Pre-adjusted regulation parameters .............................................................................................................................. 25

3.14Adjustment of the modules in complex installations ...................................................................................................... 26

3.15Adjustment of the climatic curve ..................................................................................................................................... 28

4 ERROR CODES ...................................................................................................................................................................... 31

5 ADJUSTMENT ........................................................................................................................................................................ 32

5.1 Put in to service ................................................................................................................................................................. 32

5.2 Balancing of the circuit ..................................................................................................................................................... 32

5.3 Methode of balancing of high temperature circuit ........................................................................................................... 32

Warning: this manual contains instructions to be used exclusively by the
installer and/or a competent person in accordance with the current laws in
force.
The end user MUST not make any alterations to the boiler.
Failure to follow the instructions indicated in this manual, which is supplied
with the boiler, could cause injury to persons, animals or damage to property.
UNICAL shall not be held liable for any injury and/or damage.

3

General information

1.1 - SYMBOLS USED IN THIS MANUAL

When reading this manual, a particular attention has to be given to the parts marked with the following symbols:

NOTE !
Suggestions for the user

WARNING !
Possible dangerous situation
for the product and the environment

DANGER !
Serious danger for
the safety and the life

1.2 - PROPER USE OF THE APPLIANCE

The appliance M 3000 has been manufactured on the base of the actual state of the technique and the knowle-

dge of the technical safety rules.

Nevertheless, following to an improper use, could rise up dangers for the safety and the life of the user or other
people, or damages to the boiler or to other objects.
The appliance is designed for the operation in hot water heating systems. Any different use is considered as
improper.
For any resultant damage from an improper use UNICAL is not taken on any responsibility; in such a case the
responsibility is completely of the user.
An use according to the anticipated purposes also foresees that the instructions of this manual are strictly
complied with.

1.3 - WATER TREATMENT (see specific manual)

The hardness of the appliance feeding water must have the characteristics requested in the specific instruction

sheet, supplied with the boiler.

The user of the boiler needs to be educated on the use and on the operation of his heating system. For this, the

installer has:
To deliver this instruction manual to the user, together with the other documents supplied with the appliance.
The user has to keep such documentation in a safe place so that to be able to have it available for every further
consultation.
To inform the user regarding the control of the water pressure in the boiler and how to restore it.
To inform the user regarding the correct regulation of temperatures, outer compensators/thermostats and
radiators to save energy.
If the appliancehad to have sold or transferred to another owner or if it was had to move and to leave
the instrument, to always make sure himself/herself/themselves that the book accompanies the instrument so
that can be consulted

1.4 - INFORMATIONS TO BE PASSED TO THE USER

1

GENERAL INFORMATIONS

4

General information

1.5 - WARNINGS FOR THE SAFETY

ATTENTION!
The installation, adjustment and the maintenance of the appliance have to be performed by professionally
qualified personnnel, in conformity to the normes and local rules in force, because a wrong installation can
provoque damages to people, animals and things, for which the manufacturer cannot be considered re­sponsible.

DANGER !
Never try to perform jobs of maintenance or reparations of the boiler of your own initiative. Any interven­tion must be performs from personnel professionally qualified.
You are recommended to stipulate a maintenance contract .
A poor or irregular maintenance can jeopardize the operational safety of the appliance and provoke dama­ges to people, animals and things for which the manufacturer cannot be considered responsible.

Changes to the parts connected to the appliance

Don't effect changes to the elements that influence the operational safety of the appliance

Attention !

To tighten or to loosen the threaded connections use only suitable open wrenches.
The use of non suitable tools can provoke some damages (i.e. water leakages).

5

General information

KEY
1 = Appliance model
2 = Serial Number
3 = Electrical data / Consumption
4 = Protection degree

1.6 - DATA BADGE

The data badge is sticked to the left of the mixing header

®

1

2

3

4

1.7 - GENERAL WARNINGS

This instruction manual is an integral and indispensable part
of the product and must be retained by the user.

Please read carefully the instructions contained in this manual
as they provide important indications regarding the safe
installation, use and servicing of this appliance.

Keep this manual in a safe place for future reference.

The installation and servicing must be carried out in
accordance with the regulations in force according to the
manufacturer’s instructions and by legally competent
authorized persons.

By a competent person, we imply a person who has a specific
technical qualification in the field of components for central
heating systems for domestic use, domestic hot water
production and servicing. The person must have the
qualifications foreseen by the current laws in force.

Bad or irregular servicing could compromise the safe
operation of the appliance, and could cause injury to persons,
animals or damage to property. The manufacturer shall not be
held liable for any such injury and/or damage.

Before carrying out any cleaning or servicing turn off the
electrical supply to the boiler by means of the ON/OFF switch
and/or by means of the appropriate shutdown devices.

Do not obstruct the inlet/outlet terminals.

In the event of failure and/or faulty functioning of the appliance,
switch off the boiler. Do not attempt to make any repairs: contact
qualified technicians.

Any repairs must be carried out solely by Unical authorized
technicians and using only original spare parts. Non­observance of the above requirement may jeopardize the
safety of the appliance.

To guarantee the efficiency and correct functioning of the
appliance it is indispensable to have the boiler serviced
annually by a qualified person.

If the boiler remains unused for long periods, ensure that any
dangerous parts are rendered innocuous.

If the appliance is sold or transferred to another owner or if the
present user moves home and leaves the appliance installed,
ensure yourself that the manual always follows the appliance
so that it can be consulted by the new owner and/or installer.

Only original accessories must be used for all appliances
supplied with optional extras or kits (including electrical ones).

This appliance must be used only for the purposes for which
it has been expressively designed. Any other use shall be
considered incorrect and therefore dangerous.

6

Technical features and dimensions

2

TECHNICAL FEATURES
AND DIMENSIONS

2.2 - DIMENSIONS

M Flow to heating system (from the boiler)
R Heating system return (from the boiler)
M1 Flow of high temperature circuit

View from

toop

View from

bottom

2.1 - TECHNICAL FEATURES

The thermal module M 3000 S solves the problem on howto
feed the heating circuit to the most convenient temperature
according to the needs of the user and the environmental
situation .
The thermal module M 3000 S allows to connect a wall hung
or freestand boiler to a heating installation made by two hea­ting circuits working at different temperatures:

- A radiator or fan coil heating circuit (high temperature) con­trolled by the boiler.

- A floor heating circuit (low temperature), controlled by the
thermal module

Furthermore it allows the use, on a floor heating installation,
of boilers which are not foreseen for direct operation at low
temperature in floor heating installation.

Advantages of the Thermal Module M 3000 S

• A product compatible with all the Unical and other brands

boilers.

• A precise management of the floor heating circuit tempera­ture (management economy)

• No more cold returns to the boiler, thus avoiding conden­sation problems in traditional boilers.

• Utlilisation of more M 3000 S in battery, up to a maximum of
14 modules.

• Quickness in installation of the module.

Ita simple design and its pleasant look allow to be integrated
perfectly under the boiler, but it can be positioned alsoin oter
rooms.

The Thermal Module M 3000 S is composed of:

• Galvanized frame

• Cover painted with epoxy-polyether powders

• Mixing bottle (header)

• Automatic air vent

• Motorized mixing valve

• 3 speed circulating pump

• Drain valve for boiler and Thermal Module

• Zone valve

• Flow adjuster

• Manual reset limit thermostat

• Insulation degree IP20

• Supplied with the Thermal Module:

- Outer temperature sensor with 10 m cable

- Gate valves for R1 and M1 (High Temperature Return
and Flow) - Rm e Mm (Mixed Temperature Return and
Flow for floor heating)

The Thermal Module M 3000 S inc., in addition, is

composed of:

• Box for embedding in which the Thermal Module M 3000 S

is placed

• Cover

• Pipes for connecting teh M 3000 S to the embedding box.

R 1 Hign temperature circuit return
Mm Mixed temperature circuit flow
Rm Mixed temperature circuit return

M 3000 S

58

119

59

85

M1

R1

140

51 183 138

402

372

51

R

M

Rm

Mm

R

M

R1

M1

Rm

Mm

27,5

27,5

7

Technical features and dimensions

M Flow to heating system (from the boiler)
R Heating system return (from the boiler)
M1 Flow of high temperature circuit

View from top

View from

bottom

R 1 Hign temperature circuit return
Mm Mixed temperature circuit flow
Rm Mixed temperature circuit return

M 3000 S inc.

430

58

119

59

124

M1R1

70

Rm

Mm

70 183 177

RM

140

R

M

M1R1

Rm Mm

70

70

677

8

Technical features and dimensions

2.3 - MAIN COMPONENTS

M 3000 S

M 3000 S Inc

PRIMARY CICRCUIT

BOILER FLOW ADJUSTER

AUTOMATIC
AIR VENT

MIXING BOTTLE

(HYDRAULIC HEADER)

ZONE VALVE

DRAIN COCK

MANUAL RESET
LIMIT THERMOSTAT

3 SPEED
CIRCULATING
PUMP

MIXED OUTLET
TEMPERATURE SENSOR

MOTORIZED
DIVERTING VALVE

ELECTRICAL
CONNECTION BOX

GATE VALVES

PRIMARY CICRCUIT

BOILER FLOW ADJUSTER

AUTOMATIC AIR VENT

MIXING BOTTLE

(HYDRAULIC HEADER)

ZONE VALVE

DRAIN COCK

MANUAL RESET
LIMIT THERMOSTAT

3 SPEED
CIRCULATING
PUMP

MIXED OUTLET
TEMPERATURE
SENSOR

MOTORIZED
DIVERTING VALVE

ELECTRICAL
CONNECTION BOX

BUILT-IN FRAME

BOILER FLOW
TEMPERATURE SENSOR

BOILER FLOW
TEMPERATURE SENSOR

9

Technical features and dimensions

2.4 - HYDRAULIC CIRCUIT

2

3

5

7

6

1 - Zone valve
2 - Drain cock for boiler and

M 3000 S
3 - Mixing bottle
4 - Primary circuit boiler flow adjuster
5 - Automatic air vent
6 - Inlet temperature sensor (at)
7 - Motorized mixing valve
8 - Circulating pump for floor heating

circuit
9 - Outlet flow temperature sensor (m)
9 - Manual rest limit thermostat (60°C)

R = Boiler Return
M = Boiler Flow
R 1 = Radiator circuit return

(high temperature)

M1 = Radiator circuit flow

(high temperature)

Rm = Low temperature floor heating

circuit Return (mixed water)

Mm = Low temperature floor heating

circuit Flow (mixed water)

4

8

9

10

1

R1

Rm

Mm

R

M

M1

2.5 - MAIN FEATURES

Max. output available on the mixed circuit

with t 5 °C (Flow temp. 40 °C)

Max output available on the mixed circuit

with t 10 °C (Flow temp. 40 °C)

Heat losses of the Thermal Module

Electrical supply Tension/Frequency

Main Fuse

Maximum absorbed power

Protection degree

Gross weight

kW

kW

W

V-Hz

A (F)

W

IP

kg

M 3000 S

9,3

14
106,8
230/50
??
93
20
??

M 3000 S inc

9,3

14
106,8
230/50
??
93
20
??

10

Instruction for the installer

3.2 - INSTALLATION NORMS

All the local rules concerning the installation, the safety and
the water treatment have to be complied with.

3

INSTALLATION
INSTRUCTIONS

3.1 - GENERAL WARNINGS

ATTENTION!
This appliance has been designed only for
iinside installations. Therefore this applian­ce must not be installed and operated out­doors. An outdoors installation could cause
malfunctioning and could be dangerous.

Before connecting the appliance ask for the
execution of an accurate washing of all the pi­pings by a professional qualified technician,
in order to remove possible residues or even­tuali residui o impurities, that could jeopardise
the good operation of the appliance.

ATTENTION!
The appliance must be installed by a quali­fied engineer who, under his own responsi­bilityguarantees the compliance of the stan­dards, according to the latest regulations.

ATTENTION!
The appliance must be positioned so that at le­ast the minimum operational and servicing clea­rances are provided.

The appliance must be connected to a heating
system which is compatible to its performance
and output.

11

Instruction for the installer

3.3 - Packaging

The thermal module M 3000 S is supplied completely assem-
bled in a strong cardboard box.

Agfter removal of the appliance fron the carton,
make sure the appliance is complete and not
damaged.

The packaging elements, such as the carton,
plastic strip and bag, should not be left to the

reach of children, because possible sources
of danger.
Unical refuses any responsibility for damages

caused to persons, animals and goods fol­lowing to the non observance of this statement.

In the packaging, with the appliance, there are:

- This instruction manual for the installer and the Service
technician.

M 3000 S

M 3000 S inc.

3.4 - POSITIONING OF THE APPLIANCE

When chosing the appliance installation place follow strictly
the following safety indications:

- Install the appliance in a place protected from freezing.

- The appliance has to be installed in a vertical and strong
wall, capable to support its weight.

- The wall shall not be of flammable material.

- Keep a clearance of 50 mm on both sides of the appliance

in order to ease the possible service operations.

The drawing beside gives the indications necessary for the
positioning of the thermal module.

In the upper part there are:

- the holes to hang the module to the wall (on the rear fra­me)

- the C.H. return connection to the boiler - R.

- the C.H. flow connection from the boiler - M.

In the lower part there are:

- Return from High Temperature circuit (R1)

- Flow to High Temperature circuit (M1)

- Return from Mixed Temperature circuit (Rm)

- Flow to Mixed Temperature circuit (Mm)

280

485

465

m

m

M

350

R

59

10

10

50

119 85

MmRmM 1R 1

2

1

58

51

183 137

10

12

Instruction for the installer

Finishing:

- The cover of the embedding can be painted with cold-wa­ter paint. It is suggested to use, first, a filler paint in order to
improve the grip.

Mounting of the embedding cover:

- Hook the cover first in the upper part and then push it
towards the embedding unit.

- Close the cover with the locking key.

Only for M 3000 S integrated version in the wall.

IInstruction for the embedding mounting of the unit.

The unit to be integrated allows to position the M 3000 S inc.
completely hiden in the wall thickness.
The frame is endowed of rear hooks for hunging the module.

In the upper and lower parts the holes simply allow an easy
connection to the boiler and to the heating circuits.

With the embedding mounting version the following mate­rials are supplied with:

- Closing cover for the embedding

- Key for theopening-locking of the cover.

- Connection pipes

Mounting of the embedding version unit:

- Get a niche having the dimensions of the embedded ver­sion unit and a free space below this in order to be able to
perform the hidraulic connections.

- Position the unit in the niche and fixit it with PU foam; for a
better result use also the lateral brackets.

- In order to avoid the risk of a thermal bridge between the
living unit and the niche, place in between a convenient
thickness of insulating material.

13

Instruction for the installer

3.5 - MOUNTING OF THE UNIT

Before connecting the unit, make first:
a) A careful washing of all the pipings with a suitable product,

in order to eliminate the metallic residues of working and
welding, of oil and grease that could damage and alterate the
unit operation.

For the mounting of the unit:

- Once choosen the position of the thermal module, drill the
fixing holes as shown in the picture of page 11. l

3.6 - HYDRAULIC CONFIGURATIONS

The thermal module M 3000 S can be used alone or con­nected together with other modules up to a maximum of 14
modules.

A module makes the function of main controller (MASTER); its
duty is the collection of the requests from other secondary
modules (SLAVE) and the control of the boiler.
Each module can be connected to its own, optional, modula­ting room thermostat (REGOLAFACILE).

Minimum configuration (1 thermal module)
Maximum configutaion (14 thermal modules

- Fix the unit to the all using suitable screw anchors (not sup­plied).

- Mark the position of flow and return of the different circuits
(boiler M - R, high temperature M1 - R1, mixed temperature
Mm - Rm).

HEATING

The heating flow and return of the boiler must be connected to
the Thermal Module as shown in the picture (upper side).
From the lower side there are:

- R1 = Return from high temperature heating circuit

- M1 = Flow to high temperature heating circuit

- Rm = Return from low temperature heating circuit (floor
heating circuit)

- Mm = Flow to low temperature heating circuit (floor hea­ting)

G

R

M

C

F

R

MR

M

Zone 6

By the boiler

Zone 1

Controlled

by

M3000

Zone 2

Controlled

by

boiler

Zone 4

Controlled

By

boiler

Zone 3

Controlled

By

M3000

M1

R1 Rm Mm

Rm Mm

M1

R1

M 3000

MASTER

M 3000

SLAVE 1

M1

R1

M 3000

SLAVE 2

Zone 5

Controlled

By

M3000

Rm Mm

Max. 13 + 1

R

M

14

Instruction for the installer

DIAGRAM OF FLOW RATE / AVAILABLE PRESSURE FOR THE MIXED CIRCUIT (LOW TEMPERATURE)
(Mm - Rm) with standard pump

3.7 - CONNECTION OF THE HEATING SIDE

WARNING!

Before connecting the unit make a careful
washing of the pipings with a suitable product
in order to eliminate the metallic residues of
working and welding, of oil and grease that
could damage and alterate the unit operation.

The non compliance to the instructions of
this manual can cause damages to people,
animals and googs, for which the manufac­turer cannot be considered responsible.

The heating flow and return must be connected
to the relevant fittings 3/4” M and R as shown
on page 11.

Flow rate (Q) l/h

Available pressurein m of w.c.

For the dimensioning of the heating circuit it is necessary to
keep into consideration the hydraulic resistance generated
by the radiators, the possible thermostatic valves, the radiator
valves and the configuation of the whole heating system.

The layout of the pipes must be conceived in such a manner
to avoid air locks and facilitate the continuous air venting of
the system.

Make sure the pipes of the sanitary and hea­ting water are not used as earthing of the
electric or telephone installations. They are not
absolutely suitable for this use. In a short time
damages to the pipes, boiler and radiators
could take place.

II

I

III

Acting on the speed selector of the pump of the
thermal module, it is possible to adjust the ther­mal module to the actual need of the heating
circuit (see the pump curves).

15

Instruction for the installer

APPLICATION WITH SOLAR INTEGRATION

Connect the supply of the priming pump of the
D.H.W. loading pump on the terminal strip of the
M 3000 S in correspondence of the terminals
BOILER (TA).
The connection between the boiler and M 3000 S
must be done on the terminals BOILER (OT/+)
(see wiring diagram on page 23).

3.8 -INSTALLATION EXAMPLES

Pre -asse mbled
circul atio n group

D.H.W. storage
tank loading
pump

Water mains

** See scheme

To/from high
temperature circuit

16

Instruction for the installer

3.9 - ELECTRICAL CONNECTIONS

General warnings!

The appliance electrical safety is granted only when the ap­pliance is connected to a good earthing point, as foreseen by
the standards in force: the gas pipes, water pipes and C.H.
pipes cannot be used as earthing points.

It is necessary to verify that this safety requirement is com­plied with. In case of doubt ask for a precise control by a
professionally qualified personnel, because the manufactu­rer is not responsible for damages originated by the non com­pliance with this requirement.

Ask a professionally qualified personnel for inspection ade­quacy of the electrical installation to the maximum absobed
output of the appliance, making sure that the cable cross ­section is suitable.

For the main supply it is not allowed to use adapters, multiple
sockets and cable extensions.

In the utilisation of any electrical device the following founda­mental rules have to be complied with:

• do not touch the appliance with wet hands and/or nacked
feet;

• do not pull the cables;

• do not install the appliance to the outdoor (rain, sun, etc.);

• do not allow the appliance is used by children or inexpe­rienced people.

Connection to the main supply 230V

The appliance is equipped with a supply cable of 1.5 meters
and a cross section of 3x0.75 mm² , connected to the terminal
socket Y2 of the printed circuit board M 3000 S.

The elctrical wirings are shown on the chapter "ELECTRICAL
WIRING" (paragraph 3.9 page 20).

The appliance needs to be connected to a main supply of 230
V - 50 Hz. This connection must be workmanlike performed,
as stated by the rules in force.

Danger!
The electrical installation must be performed
only by an authiorized technician.
Before making the connections or any other
electrical work on the electrical parts, cut
the electrical supply and make sure that it
cannot be restored accidentally.

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

For boilers without data
communication possibility

Connection of the M 3000 S to the boiler

Boiler with data communication possibility

Must be connected betwee the terminals: BOILER (OT /+) and
the terminals foreseen for the inlet of the boiler Modulating

Room Thermostat (TA).

Boiler without data communication possibility(*)

Must be connected betwee the terminals: BOILER (TA) and
the terminals foreseen for the inlet of the boiler (ON/OFF)

Room Thermostat (TA)

BOILERS WITH DA T A

COMMUNICATION

POSSIBILITY

ALKON 50

ALKON 18 - 28 - 35

ALKON PLUS 35

CARGOMAX 3 Z

CARGOMAX KOND 3 Z

DUA PLUS

DUA PLUS μTANK

DUA PLUS B

ELETTRA

ENTER

ENTROFUORI

ESTRAL

INKAL

KONDINOX

BOILER

EVE 05

CLIPPER

CUTTER

IVEN

IVEN 04

IVEN B

BOILER(*)

In case of connection with boilers not speci­fied in this table, utilize the connection of page
21: ’boiler WITHOUT data communication

possibility”.

BOILERS WITHOUT DATA

COMMUNICATION

POSSIBILITY

If there is the TA jumper onto
the electronic PCB, this one
has to be moved to the
position ON/OFF

17

Instruction for the installer

Connection of the outer sensor

To be performed on the terminals EXT SENSOR; the scree-

ning, if present, has to be connected to the terminal SHIELD.

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

Outer

sensor

SND0140C

Room temperature adjustment

- OUTER SENSOR
Solution suggested for floor heating systems

- TIMER + OUTER SENSOR
Solution that allows the weather compensation and the
night reduction

- REGOLAFACILE + OUTER SENSOR
Solution that allows the weather compensation, the room
temperature compensation, the remote control and the
night reduction; it is suggested for every type of application.

- TA on-off (On-Off Room thermostat) + OUTER SENSOR
Solution that allows the weather compensation, the room
temperature compensation; it is essential for a multi-zone
installation. (A thermal module that manages several low
temperature zones through several zone valves and a high
temperature zone).

Outer Sensor

The outer sensor (code SND0140C) is tandard supplied with
the M 3000 S.

Also in case of installation with more thermal
modules, just one outer sensor, to be con-
nected to the main module (MASTER) is
enough.

Position the outer sensor from 2.5 m from the ground, on a
wall NORTH/NORTH-EAST oriented, protected from the sun
and the predominant winds.

To avoid electromagnetic disturbances it is ne­cssary to separate the harness between outer
sensor and the M 3000 S terminal strip from
230 V harness.

18

Instruction for the installer

Connection of a TIMER ON-OFF
(night shift)

If an ON/OFF TIMER is used for the night reduction, make the
connection to the terminals ROOM STAT / NS.
The jumper JP1 (on the PCB of M 3000 S ) must be moved as
shown in the picture.

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
ST AT / NS

OV
BUS ­BUS +
BOILER

(TA)

Timer for NS
night reduction
(low temperature
circuit)

NS

(Ni

g

ht shift)

Jp1

The possible thermostat controlling the high temperature zone
has to be connected to the BROWN-BLUE ROOM

THERMOSTAT WIRES (230 V)

ROOM
STAT (230 V) N

L1

TA On/Off for control of high
temperature circuit.

For boilers without data communication
possibilità (*) it is necessary to modify the
harness as shown in the wiring diagram.
Remove the brown/blue wires from the
ROOMSTAT-Z1 terminals of the PCB 00630083
and introduce them in the terminals BOILER
Y3 (1-3) of the PCB 00630132 (see wiring
diagram).

Y3

Y1

Y

ellow

Pink

Brown

Blue

Y

ellow

BOILER

Blue

Purple

Red

Black

Blue

White

Brown

Green

Gray

Brown

Blue

MC
VZ

V

Z

Attention! For the connection to an ON-OFF ti­mer it is necessary to modify the value of the
parameter 4 ES (TSP)from 3 to 1 with REGO­LAFACILE. See 3.11 on page 24)

WARNING

For a high temperature zone controlled by ON/OFF room thermostat,
ascertain that the selector “S” is positioned as shown below.

A

M

Positioning:
“A” (Automatic) in line
with the “T” reference.

S

T

T

19

Instruction for the installer

Connection of the REGOLAFACILE

In case a REGOLAFACILE is used, connect it to the terminals,

ROOM STAT / NS.

The jumper JP1 (onto PCB of M 3000 S) has to be positioned
as shown in the picture.

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
ST AT / NS

OV
BUS ­BUS +

BOILER

(TA)

REGOLAFACI­LE
(low temperatu­re circuit)

The thermostat of the high temperature circuit must be con­nected to the terminals BROWN - BLUE ROOM STAT (230V)

ROOM
STAT (23 0 V) N

L1

TA on/off for control of high
temperature circuit

Remote

Jp1

For boilers without data communication pos-
sibility (*) it is necessary to modify the harness

as shown in the diagram.
Remove the cables brown/blue from terminal
ROOM STAT Z1 of the PCB 00630130 and
insert them in the terminal BOILER Y3 (1-3) of
the PCB 00630132 (see diagram beside).

The presence of the REGOLAFACILE excludes
the manual adjustments on the PCB 00630130.

Y3

Y1

BOILER

MC
VZ

V

Z

Yellow

Pink

Brown

Blue

Y

ellow

Blue

Purple

Red

Black

Blue

White

Brown

Green

Gray

Brown

Blue

WARNING

For a high temperature zone controlled by ON/OFF room thermostat,
ascertain that the selector “S” is positioned as shown below.

A

M

Positioning:
“A” (Automatic) in line
with the “T” refer ence.

S

T

T

20

Instruction for the installer

Attention!

Remove the jumper JP2 (placed on the
electronic PCB) of the intermediate mod .

Cascade connection of more M 3000

In case more M3000s have to be installed, inter-modules com­munication is granted by the connection to the terminals OV
BUS + BUS - among the different modules (max 14).

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

Jp2

Jp2

Leave on place just the jumper JP2 of the

first and last module.

Jp2

Jp2

Jp2

Jp2

Jp2

M 3000 1
MASTER
(1st)

M 3000 2
SLAVE
(interm.)

M 3000 3
SLAVE
(interm.)

M 3000 4
SLAVE
(interm.)

M 3000 5
SLAV E
(last)

max 14

Attention!

Follow the polarity: OV / OV

BUS - / BUS ­BUS + / BUS +

21

Instruction for the installer

3.11 - WIRING DIAGRAMS

KEY
A1...A7 = Connettors
FL = Flowswitch (optional)
MC VZ = Micro-switch of zone valve
MMX = Mixing valve motor
P = Circolating pump

SR in = Temperature sensor of heating inlet
SR out = Temperature sensor of heating outlet
TL = Limit thermostat
VZ = Zone valve

Actual wiring diagram

P3

P2

P1

Remote

NS

(Night shift)

Jp1

Jp2

P

BLUE

4
3
21

A1

A2

432

15678

A5

1

2

3

4

5

6

A6

1

2

3

4

5

6

A4

1

2

3

4

5

6

7

DL1

DL2

DL3

ON

1234

JP2

1

2

A3

1

23

A7

Y2

Y3

GND 1

GND 2

GND 3

Y1

JP1

BOARD 00630130

BOARD 00630132

BLUE

ORANGE
BLACK
BROWN

C
D
A
B

WHITE
WHITE

PINK

GRAY

BLUE

BROWN

WHITE

BLACK

BLUE

BLACK

GND 2

BOARD 00630130

YELLOW

PINK

BROWN
BLUE

YELLOW

BOILER

BLUE

PURPLE

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +

BOILER

(TA)

ROOM
STAT (230 V) N

L1

RED

BLACK

BLUE

WHITE

BROWN

GREEN

GRAY

PE
FRAME

LINE

NEUT

BLACK

BROWN

BLUE

GND 1

YEL/GREEN

230 V - 50 Hz

BROWN

BLUE

MC
VZ

TL

SR out

SR in

FL

MMX

VZ

N

L1

22

Instruction for the installer

Example of connection diagram:
between M 3000 and boiler without data communication possibility (see list on page 16).

(*) TA modulante

(control of low
temperature circuit)

TA on/off

(control of high
temperature circuit)

JUMPER JP1

Position with REGOLAFACILE/
SIM-CRONO

*

*

Remote

Jp1

JUMPER JP1

Position with time clock for night
reduction

NS

(Night shift)

Jp1

P3

P2

P1

4321

A1

A2

43215678

A5

1

2

3

4

5

6

A6

1

2

3

4

5

6

A4

1

2

3

4

5

6

7

DL1

DL2

DL3

ON

1234

JP2

12

A3

12

3

A7

Y2

GND 1

GND 2

GND 3

JP1

BOARD 00630130

BOARD 00630132

BLUE

BROWN

BOARD 0063 0130

YELLOW

PINK

BLUE

YELLOW

BLUE

PINK

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

ROOM
STAT (230 V) N

L1

RED

BLACK

BLUE

WHITE

BROWN

GREEN

GRAY

PE
FRAME

BROWN

BLUE

SE

VZ

MC
VZ

12 3

24

18 6

12

PROGRAMMI

INTERROM PE
ORARIO
RISCALDAMENTO

PRO LU N GA

ORARIO

RISCALDAMENTO

COR RE ZIO N E M AN UAL E D I TE M PE RAT U RA

0

SE
TROPPO
FREDDO

REGO LA FACI LE

ANTIGELO

RISCALDAMENTO 1

1

2

RISCALDAMENTO 2

SOLO SAN ITARIO

RISCALDAMENTO
CONTINUO

TEMPERATURA
NOTTURNA
CONTINUA

PREMERE INSIEME
TASTI E PE R

23

SBLOCCO CALDAIA

attiva solo con riscaldamento in funzione

SE
TROPPO
CALDO

BLACK

BLACK

A1 A3 A4 A2

EVE 05

LINE

NEUT

BLUE
BROWN

BROWN

BLUE

GND 1

YEL/GREEN

Y3

Y1

BOILER

GND 1

Y

EL/GREEN

23

Instruction for the installer

Example of connection diagram
between M 3000 and boiler with data communication possibility (see list on page 16).

Remote

Jp1

NS

(Night shift)

Jp1

JUMPER boiloer electronic PCB

If it is fitted a selection Jumper between
TA (on/off or modulating)
position it in MODULATING (OT/+).

(*) TA modulating

control of low
temperature circuit

TA on/off

(control of high
temperature circuit)

P3

P2

P1

4321

A1

A2

4
3
21 5678

A5

1

2

3

4

5

6

A6

1

2

3

4

5

6

A4

1

2

3

4

5

6

7

DL1

DL2

DL3

ON

1234

JP2

12

A3

1

23

A7

Y2

GND 1

GND 2

GND 3

JP1

BOARD 00630130

BOARD 00630132

BOARD 00630130

YELLOW

PINK

BRO WN
BLUE

YELLOW

BLUE

PURPLE

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

ROOM
STAT (230 V) N

L1

RED

BLACK

BLUE

WHITE

BRO WN

GREEN

GRAY

PE
FRAME

LINE

NEUT

BROWN

BLUE

SE

123

24

18

6

12

PROGRAMMI

INTERROMPE
ORARIO
RISCALDAMENTO

PROLUNGA

ORARIO

RISCALDAMENTO

CORREZIONE MANUALE DI TEMPERATURA

0

SE
TROPP O
FREDDO

REGOLA FACILE

ANTIGELO

RISCALDAMENTO 1

1

2

RISCALDAMENTO 2

SOLO SANITARIO

RISCALDAMENTO
CONTINUO

TEMPERATURA
NOTTURNA
CONTINUA

PREMERE INSIEME
TASTI E PER

23

SBLOC CO CA LDA IA

attiva so lo con riscalda me nto in funzio ne

SE
TROPP O
CALDO

A

LKON 18 R

A

LKON PLUS 35 R

543216

4

32

1

1

L1 N

Y1

Y2

STA T

ROOM

SENS

EXT

BLUE
BRO WN

BROWN
BLUE

GND 1

YEL/ GRE EN

Y3

Y1

BOILER

GND 1

Y

EL/GREEN

MC
VZ

VZ

D.H.W. storage
tank loa ding
pump

**

V

Z

D.H.W.

230 V
50 Hz

JUMPER JP1

Position with REGOLAFACILE/
SIM-CRONO

*

JUMPER JP1

Position with time clock for night
reduction

24

Instruction for the installer

3.12 - ADJUSTMENT OF M 3000 IN SIMPLE
INSTALLATIONS

(M 3000 + Boilers with data communication
capacity)

The connection of just one M 3000 S to a boiler (with data
communication capacity) does not require any setting or pro­gramming intervention: the system is already factory set with
the parameters suitable to the most of low temerature installa­tions.

If the REGOLAFACILE is NOT installed, the
adjustment of the low temperature circuit will
be done through the manual control PCB,
code 00630130.

A = Potmeter for the adjustment

of the compensation curve.

B = Potmeter for the adjustment

of NON heating outer tempe
rature SOMMER/WINTER)

C = Potmeter for the adjustment

of maximum mixed flow tem
perature.

ATTENTION!
The REGOLAFACILE excludes the adjust­ments ferom the manual control PCB.

Parameters adjusted on the control
PCB through the switches 1-2-3-4

Switch Position Description

1 ON Heating function do not modify)
2 ON Master Module ON - Slave Module OFF
3 ON Boiler with data communication capacity
4 OFF OFF: Module connected directly to the boiler

ON : Module connected (hydraul.) to a water
accumulator tank acqua (see page 29)

A

B

C

ON

OF

F

1 2 3 4

ON

(M 3000 + Boiler without data communication
possibility)

The connection of just one M 3000 S to a boiler (without data
communication capacity) requires the adjustment of the
switches 1, 2, 3, 4 as shown below: the system is already
factory set with the parameters suitable to the most of low
temerature installations.

If the REGOLAFACILE is NOT installed, the
adjustment of the low temperature circuit will
be done through the manual control PCB,
code 00630130.

A = Potmeter for the adjustment

of the compensation curve.

B = Potmeter for the adjustment

of NON heating outer tempe
rature SOMMER/WINTER)

C = Potmeter for the adjustment

of maximum mixed flow tem
perature.

ATTENTION!
The REGOLAFACILE excludes the adjust­ments ferom the manual control PCB.

Parameters adjusted on the control
PCB through the switches 1-2-3-4

Switch Position Description

1 ON Heating function do not modify)
2 ON Master Module ON - Slave Module OFF
3 ON Boiler without data communication capacity
4 OFF OFF

: The boiler controls itself its own temperature

ON : The Module controls the boiler temperature

A

B

C

ON

OF

F

1

ON

2 3 4

1 2 3 4

ON

OF

F

CONFIGURA TION
FOR SOLARE
INTEGRATION**

**

ON

OF

F

1 2 3 4

ON

25

Instruction for the installer

Sub parameter Name Factory Value Description

Regolafacile setting

0 0 At 1 0 5 ÷ 20 Min. difference between boiler temp. and exit temp. from M3000 S
0 1 BC 1 1 ÷ 13 Identification code of the SLAVE module
0 2 d L 2 5 20 ÷ 45 Minimum exit temperature
0 3 dH 50 50 ÷ 85 Maximum exit temperature
04 ES 3 0 Without outer sensor + Timer

1 With outer sensor + Timer
2 Without outer sensor + TA ON-OFF

3 With outer sensor + TA ON-OFF
0 7 Hn 0 1 ÷ 13 None SLA VE module connected
0 8 AF 0 1 ÷ 15 Boiler antifast time:

min. time between a switch OFF and the subsequent switch ON
09 HL 35 35 ÷ 50 Boiler minimum temperature
10 HH 85 55 ÷ 85 Maximum boiler temperature (changes the value in the boiler)

3.13 - PREADJUSTED
REGULATION PARAMETERS

Pre-adjusted parameters on the module M 3000 S

It is possible to modify these parameters throu­gh the room thermostat REGOLAFACILE

1

CORREZIONE MANUALE DI TE MPERATURA

0

SE
TROPPO
FREDDO

REGOLA FACILE

attiva solo con riscaldamen to in funzione

23

SE
TROPP O
CAL DO

24

18 6

12

RESET

OK

Once the modification of the TSP parameters
is completed, the REGOLAFACILE can be re­moved from M 3000 S.

In case of installation with more thermal
modules it is necessary to modify some
parameters

- Open the shutter of the REGOLAFACILE

- Push the button up to find the menu TECNICO

- Push (the first parameter of the list is displaied):

(HEATING CURVE)

- Push the button up to find the parameter 20

- Introduce the access codeo (1234) using the buttons 1-

2 / 1 e 2-2 / 1 e 2-2-2 / 1 e 2-2-2-2

- Push to confirm

- Push the button up to reach the parameter TSP

OK

OK

PARAMETER

PRE-SET

VALUE

SUB­PARAMETER

SUB

PARAMETER

NAME

CORRESPONDANCE

=

At

=

BC

=

dL

=

dH

=

ES

=

Hn

=

AF

=

HL

=

HH

- Push the button to display the first sub-parameter
00 of TSP

OK

- Push the button : the symbol is displaied,
Select the desired value with the push buttons

; then push to confirm.

- Select the subsequent bub-parameter to be modified,
with the push buttons

OK

!

OK

26

Instruction for the installer

JP2

Y3

Y1

JP1

BOARD 00630130

BOARD 00630132

BOILER

1 2 3 4

ON

Y2

LINE

NEUT

JP2

Y3

Y1

JP1

BOARDA 00630130

BOARD 00630132

BOILER

1 2 3 4

ON

Y2

LINE

NEUT

JP2

Y3

Y1

JP1

BOARD 00630130

BOARD 0 0630132

BOILER

1 2 3 4

ON

Y2

LINE

NEUT

JP2

Y3

Y1

JP1

BOARD 00630130

BOARD 00630132

YELLOW

BOILER

BLUE

PURPLE

BOILER
(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS
OV
BUS ­BUS +
BOILER

(TA)

RED

BLACK

BLUE

WHITE

BROWN

GREEN

GRAY

1 2 3 4

ON

BOILER
(OT / +)

ROOM
STAT / NS
OV
BUS ­BUS +
BOILER

(TA)

M3000

MODULO 1

PRINCIPALE

MASTER

BOILER
(OT / +)

ROOM
STAT / NS
OV
BUS ­BUS +
BOILER

(TA)

BOILER
(OT / +)

ROOM
STAT / NS
OV
BUS ­BUS +
BOILER

(TA)

ROOM
STAT (230 V) N

L1

To the boile r

Outer sensor

ROOM
STAT (230 V) N

L1

ROOM
STAT (230 V) N

L1

ROOM
STAT ( 230 V) N

L1

Y2

LINE

NEUT

(low temperature)

- TA ON-OFF

- REGOLAFACILE

- TIME CLOCK

- Limit stop contact of zone valves

EXT
SENSOR

SHIELD

EXT
SENSOR

SHIELD

EXT
SENSOR

SHIELD

(low temperature)

- TA O N-OFF

- REGOLAFACILE

- TIME CLOCK

- Limit stop contact of zone valves

(low temperature)

- TA O N-OFF

- REGOLAFACILE

- TIME CLOCK

- Limit stop contact of zone valves

(low temperature)

- TA O N-OFF

- REGOLAFACILE

- TIME CLOC K

- Limit stop contact of zone valves

YELLOW

BLUE

PURPLE

RED

BLACK

BLUE

WHITE

BROWN

GREEN

GRAY

Y

ELLOW

BLUE

PURPLE

RED

BLACK

BLUE

WHITE

BROWN

GREEN

GRAY

Y

ELLOW

BLUE

PUR PLE

RED

BLACK

BLUE

WHITE

BROWN

GREEN

GRAY

3.14 - ADJUSTMENT OF M 3000 IN
COMPLEX INSTALLATIONS

Cascade connection of several M 3000 S

The application of M 3000 S in complex installations requi­res the designation of a main module (MASTER) and se­condary modules (SLAVE).

SETTINGS OF THE MAIN MODULE (MASTER)

Once the settings of the (A) switches 1-2-3-4 on the main
module (MASTER) have been completed, it is necessary to
modify through the REGOLAFACILE the parameter 07 ‘’num-

ber of secondary modules connected (SLAVE)’’.

Change the value according to the number of secondary mo­dules connected (in this case 3); follow the procedure for the
parameter modification described in the chapter 3.11.

SETTINGS IN SECONDARY MODULES (SLAVE)

(suitable for configurations up to 3 slave modules)
Set the switches as shown in B - C - D.

A

Switch Setting Description

1 ON Heating function (do not modidy
2 ON Module MASTER ON
3 ON Boiler with data communication capacity

OFFBoiler without data communication capacity

Sub-parameter Name Factory Value

Regolafacile settings

07 Hn 0 1 ÷ 13

The functionality of switch 4 depends on the position of switch 3

Switch Setting Description

3 ON Boiler with data communication capacity
4 ON Direct data connection between M3000 & boiler

OFF Data connection via PCB 00630083

Switch Setting Description

3 OFF Boiler controlled in ON/OFF mode
4

ON The boiler temperature is controlled by M3000

(Es. Caldaie in acciaio)

OFF La temperatura è controllata dalla caldaia
(es. caldaie murali).

1 2 3 4

ON

B

C

D

1 2 3 4

ON

1 2 3 4

ON

SLAVE 1 (B) SLAVE 2 (C) SLAVE 3 (C)

up to 4 M 3000 S + boiler

Warning!

Observe the polarity: OV / OV

BUS - / BUS ­BUS + / BUS +

27

Instruction for the installer

Cascade connection of several M3000S

more than 4 and up to 13 M3000S + boiler

The use of the modules in more complex installations re­quires the designation of a main module (MASTER) and the

one of the secondary modules (SLAVE 1.......SLAVE 13).

SETTINGS OF THE MAIN MODULE (MASTER)

Follow the instructions given in the previous page.

SETTINGS OF THE SECONDARY MODULES (SLAVE)

Set the switches of each SLAVE module as shown in the fol­lowing figure.

SLA VE 1 ....13

1 2 3 4

ON

Once the parameters have been modified it is
possible to remove REGOLAFACILE.

Once completed the setting of the switche 1-2-3-4 on each
SLAVE module, it is necessary to modify via the REGOLAFA-

CILE the parameter 01 ‘’code for SLAVE module identifica­zione modulo SLAVE’’.

Change the value of each SLAVE by introducing its progres­sive number (each SLAVE module must be identified by a
different Bc).
Follow the procedure for parameter modification described
on chapter 3.11.

Sub-parameter Nome Factory Value

Regolafacile setting

01 Bc 1 1 ÷ 13

If there are no thermostats for the control of
the direct zone (H.T.) and the floor heating
zone (L.T.) make a shunt between terminals
ROOM STAT / NS, in order to have a conti­nuous heat request.

(low temperature circuit controlled by:)

- REGOLAFACILE

- ON/OFF ROOM THERMOSTAT

- TIMER

For the control of 1 low temperature zone:

For the control of more low temperature
zones:

Limit switch contact
for ZONE VALVE

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +
BOILER

(TA)

NS

(Night shift)

Jp1

BOILER

(OT / +)

EXT
SENSOR

SHIELD

ROOM
STAT / NS

OV
BUS ­BUS +

BOILER

(TA)

28

Instruction for the installer

3.15 - ADJUSTMENT OF THE CLIMATIC
CURVE

For an installation with two circuits, of which one working at
H.T. for radiators and one for L.T. floor heating:

- Adjust the maximum desired temperature in the H.T. circuit

through the potmeter placed in the front of the boiler panel
board.

A

B

C

A = Potmeter for the regulation of compensation curve.
B = Potmeter for the regulation of the outer non heating

temperature (WINTER/SUMMER).

C = Potmeter for theregulation of the maximum mixed flow

temperature.

With this solution it is possible to control the flow temperature
according to the variation of the outer temperature.
It is then necessary to configurate the climatic curve.
The curve is drawn by the introduction of the maximum and
minimum calculated flow temperatures: the first has to be
selected via the trimmer ''C'', while the second is adjusted
through the parameter (2) of Regolafacile (dL = MINIMUM
HEATING TEMPERATURE).
Subsequently it is necessary, through the trimmer “A”, to adjust
the maximum flow temperature to the minimum outer tempe­rature. This temperature, obviously, is different zone by zone
and depends on the climatic caracteristics of the installation
site (this corresponds to the minimum outer design tempera­ture).
The minimum flow temperature, on the contrary, is automati­cally assigned by the module in correspondance of an outer
temperature equal to the value adjusted on the trimmer ''B''.
Once these parameters have been adjusted, the boiler will
select on the climatic curve a flow temperature avccording to
the temperature detected by the outer sensor.
The connection to a modulating boiler allows the climatic re­gulation also in the high temperature circuit, by using the set­ting of the boiler (parameter Oc).
If this setting is not available through the communication
(ALKON 28) the parameter ‘’Oc’’ for the high temperature is
detected by the position of the trimmer ‘’A’’.

10 °C

-20°C

-10°C

10°C

20°C

Tem p. Est.

Outer temperature range

controlled by the “A” potmeter

Flo

w

tem

p

erature range

controlled by the “C” potmeter

Non heating temperature

range controlled by

the “B” potmeter

17°C

23°C

25 °C

35 °C

0°C

20 °C

30 °C

40 °C

50 °C

Riduzione notturna (-12°C)

Riduzione notturna (-4°C)

Setpoint

Z1

- Adjust through the trimmer ''B'' the non heating outer tem­prature from which the user does not whish to have any
heating from the floor heating system.

- Adjust through the trimmer ''C'' the maximum temperature
desired in the low temperature circuit.

29

Instruction for the installer

Adjustment of the climatic curve through the
REGOLAFACILE.

In the installations, that foresee, togheter with
the outer sensor, not an ON/OFF room ther­mostat, but the REGOLAFACILE, the adjust­ment has to be done exclusively by the re­mote control.

The graph, (present also in the user’s manual of the REGOLA­FACILE) shows some types of working curves referred to a
requested room temperature of 20 °C. It is easily visible that
the curves 0.2- 0.8 are particularly indicated for low tempera­ture circuits (floor and wall heating), whilst the ones 1 – 3 are
for medium and high temperature (radiators, fancoils, etc…).
If the room temperature adjusted on the REGOLAFACILE is
different than 20°C the curves slide downwards or upwards
od about 2.5 °C for each degree, respectively in minus or in

0,2

0,4

0,6

0,8

1

1,25

1,5

2

20,0

40,0

60,0

80,0

100,0

20 16 12 8 4 0 -4 -8 -12 -16

Oute r temperature [° C ]

CURVE 2 OUTER TEMPERATURE = 0°C WEIGHT OF THE ROOM SENSOR = 10

Set temperature Temperature detected in the room Calculated flow temperature

20 18 68 + 10 + 10

20 19 68 + 10

20 20 68

plus of the theoretical 20°.
If, for instance, the selected curve is the n. “2” and the outer
temperature is 0° C the theoretical calculated flow temperatu­re will be of about 68° C. At this point the actual flow tempera­ture will be of 68°C if the requested flow temperature is 20 °C,

70.5°C if this is 21°C, 73°C if it is 22°C and so on.
To adjust the working curve it is convenient to followwthese
instructions:

- Select the working curve visibly on the graph, on the
base of the C.H. installation characteristics.

- Open the shutter of the REGOLAFACILE

- Push the button + up to find the TECHNICAL menu.

- Push OK: the parameter HEATING CURVE is shown.

- Push OK and subsequently insert the coefficient of the
selected cuve, which is on the right of the graph.

- Push OK and close the shutter.

When both, the REGOLAFACILE and the outer sensor are
connected, in the calculation of the flow temperature, the room

A

At

Bt

temperature detected by the REGOLAFACILE has no weight;
then if we set 21°C and in the room we have 22°C the boiler
continues to operate.
To switch OFF the boiler when the room conditions are sati­sfied it is necessary to act on the parameter “WEIGHT OF
THE ROOM SENSOR” (TECHNICAL menu) by changing it to
a value different than zero.

The parameter WEIGHT OF THE ROOM SENSOR represents
the number of degrees which will be added by the REGOLA­FACILE to the theoretical flow temperature, calculated on the
base of the working curve of the outer sensor, detected in the
room.
See the example:

30

Error codes

4

ERROR CODES

The three leds indicated on the PCB of the thermal module
show few but foundamental informations that can help during
the service operations.

To get acces to the leds it is necessary to remo­ve the cover of the electrical box.

RED LED (DL1):

ON = An error has been detectedo

OFF = None error detectd

GREEN led (DL2):

ON = Operation in heating mode

LAMP. = Anti-freeze function is ON

OFF = Stand-by

YELLOW led (depends on the applications).

For a secondary module (SLAVE):

For a main M 3000 S (Master) connected to a boiler with
data communication capacity (with both switches 2 - 3 in
ON position):

For a main M 3000 S (Master) connected to a boiler without
data communication capacity
(with switch 2 in ON and switch 3 in OFF position):

DL1

DL1

DL2

DL2

DL2

If the YELLOW leds (DL3):

ON = Correct communication with the boiler

LAMP. = None communication with the boiler

DL3
DL3

If the YELLOW led (DL3):

ON = There is a heat demand to the boiler

OFF =There is no heat demand to the boiler

DL3

DL3

ON = Correct communication with the MASTER

module

BLINKING = No communication with the MASTER

module

DL3

DL3

4321

A1

A2

43215678

5

6

A6

5

6

A4

1

2

3

4

5

6

7

JP2

Y2

Y3

GND 1

GND 2

GND 3

Y1

JP1

BOARD 00630130

BOARD 00630132

BOILER

1 2 3 4

ON

12

A3

1

23

A7

LINE

NEUT

A5

1

2

3

4

1

2

3

4

DL1

DL2

DL3

1 2 3 4

ON

1 2 3 4

ON

That can be seen on the PCB

31

Error codes

Each error is characterized by a priority level: if
two errors are detected at the same time the code
with higher priority is shown.

priority 1 = low priority
priority 13 = high priority

code 4 6 priority 1
Boiler out of order (only if communicating)
Description:The boiler has detectd an internal fault.

code 4 7 priority 2
Communication problems with the boiler

Correction:

Verify the connection between Z1-BOILER and

the inlet of boiler modulating thermostat

code 4 8 priority 3
Internal communication problems
Description:

Probable error on the PCB 00630083

code 4 9 priority 4
No remote control detected
Description: Probable error on the PCB 00630083

Verify the connection between 00630083 and remote control
and/or replace the PCB 00630083

code 1 priority 5
Faulty outer sensor
Description:

Error in the outer sensor
It is shown only if the switch 2 = ON and the parameter od the
Regolafacile ES = 1.

In this case the assumed external temperature will be -20 °C
in order to grant in any case the floor heating.

Correction:

If connecting temporarily a new outer sensor the error code
disapears, replace definetively the outer sensor; on the con­trary, if the error does not desapear check its connections.

code 2 2 priority 6
Faulty mixed flow sensor
Description:

The flow temperature sensor of the low tempe-

rature circuit is faulty.

Consequence: the pump of MODUL 3000 S is not working.

Correction:

If connecting temporarily a new sensor the error code disap­pears replace definetively the faulty sensor; on the contrary, if
the error code does not disappear check its connections.

code 1 0 priority 7
Limit thermostat of the M3000 S has cut the circuit
Description:

Intervention of the limit thermostat.

Consequence: the pump of M 3000 S is not working.

Correction:

Ascertain the good contact between the temperature sensor
on the outlet of the low temperature circuit (see fig. 2 pos.5)
and the pipe on which it is fixed; ascertain, also, that the mixing
valve is not blocked.

That can be seen on the REGOLAFACILE

code 9 priority 8
In case of freezing

Description:

Only the low temperature circuit is controlled: if the temperatu­re detected by the sensor is equal or below 2 °C the pump
and the mixing valve are not electrically supplied. When the
detected temperature will be higher than 5°C the mixing val­ve and the pump will be re-activated.

Correction:

The low temperature circuit needs to be conveniently war­med.

code 1 4 priority 9
Sensor of high temperature water arriving from the boiler.
Description:

Interruption or short circuit in the sensor of high temperature
water arriving from the boiler.

Correction:

If connecting temporarily a new sensor the error code disap­pears replace definetively the faulty sensor; on the contrary, if
the error code does not disappear check its connections.

code 50+BC priority 1 0

MASTER MODULE : It is not possible to establish the commu­nication between the MASTER M 3000 S and the a M3000 S
SLAVE.
The BC (Bus Code) shown on the display will be a figure
given by the addition of 50 and the No. identifying the SLAV E
MODULE with which the communication is impossible.
Example: difficulty of communication with the SLAVE 2: the
display will show the code 52.
SLAVE MODULE : It is not possible to establish the communi­cation between a SLA VE M3000S and the M 3000S MASTER.
The BC (Bus Code) shown on the display will be 50, which is
the identification No. of the MASTER.

Correction:

Check the harness.

1) Verify the BUS CODE of the SLAVE MODULES 3000.

2) Verify if all the SLAVE have the same error.

Replace the PCB of the MASTER module
Otherwise replace the PCB of the SLAVE one.

code 2 priority 11
User’s parameters
Description:

USER’s parameter setting with errors

Correction:

The user’s parameters need to be restored with a REGOLA­FACILE

code 1 1 priority 12
Factory parameters
Description:

FACTORY’s parameter setting with errors

Correction:

The factoryr’s parameters need to be restored with a REGO­LAFACILE

code 1 2 priority 13
Internal error
Description:

Internal error

Correction:

Replace the PCB of M 3000.

32

5.1 - COMMISSIONING

- Fill the heating circuit (see the boiler user instructions)

- Purge the air from the air vent of the thermal module, pla-

ced on the air separator.

- Check the pressure in the system through the boiler mano-

meter.

- Ascertain that there are not water leakes.

- Connect to the mais 230V-50Hz the electrical supply ca-

bles of the boiler and the thermal module (s).

- Reset the limit thermostat

- Start the boiler in winter mode and purge again the heating

system.

- Switch ON the thermal module (the switch is positioned on

the R.H. side wall).

5.2 - BALANCING OF THE CIRCUITS

- Remove the plug ''A'' from the adjusting valve and proce-

de with the balancing of the circuit by acting on the adju­sting screw ''B'' with a 12 mm Allen wrench.

- primary circuit (mixing header feeding) through the Ti valve

Adjuster of the boiler primary circuit

- COMPLETELY OPEN (standard supply)

-1 TURN CLOSE (in clockwise rotation)

-2 TURN CLOSE (in clockwise rotation)

-3 TURN CLOSE (in clockwise rotation)

-4 TURN CLOSE (in clockwise rotation)

-5 TURN CLOSE (in clockwise rotation)

B

A

5

ADJUSTMENTS

5.3 - BALANCING METHOD OF THE HIGH
TEMPERATURE CIRCUITS

The balancing of the two high temperature circuits can be
done through this procedure:

- Once all the hydraulic connections have been done start

the system with zero balancing (the adjusting valve 4 fully
open).

- In a few minutes the temperature of the mixing bottle 3 will

raise, whilst the direct flow to the high temperature circuit
will have difficulty to reach the wished output. It is possible
to smoothly verify that the flow and return pipes will beco­me warm.

- Activate also the low temperature circuit once the desired
flow temperature has been set through the manual control
PCB or the REGOLAFACILE.

- At this moment start to close the adjusting valve 4 of one
turn at the time, verifying through a termometer the opera­ting temperature of the furthest direct radiator.

- Once the furthest radiator has reached the desired tempe­rature, verify that the low temperature circuit is able to main­tain the desired temperature.
At this moment the correct balancing has been reached.

- Once the balancing has been done, it is suggestable to
adjust also the intermediate radiators to the actual thermal
needs.

Adjustments

33

La Unical declina ogni responsabilità per le possibili inesattezze se dovute ad errori di trascrizione o di stampa. Si riserva altresì il diritto
di apportare ai propri prodotti quelle modifiche che riterrà necessarie o utili, senza pregiudicar ne le caratteristiche essenziali.

AG S.P.A.

46033 casteldario - mantova - italia - tel. [phone] (r.a.) - fax [phone]

www.unical.ag - [e-mail]