Viessmann EM-M1 Kurzanleitung

Installation and service instructions

for contractors

VIESMANN

Mixer extension kit

ADIO electronics module

Mixer extension kit EM-M1 for one heating circuit with mixer, wall mounting

Mixer extension kit EM-MX for one heating circuit with mixer, mixer mounting

Mixer extension kit EM-MX for one heating circuit with mixer, mixer mounting,

Divicon heating circuit distributor

Mixer extension kit

5838001 GB 12/2018 Please keep safe.

Please follow these safety instructions closely to

prevent accidents and material losses.

Safety instructions explained

Danger

This symbol warns against the risk of injury.

!Please note

This symbol warns against the risk of material

losses and environmental pollution.

Note

Details identified by the word "Note" contain additional

information.

Target group

These instructions are exclusively intended for quali-

fied contractors.

■Work on gas installations may only be carried out by

a registered gas fitter.

■Work on electrical equipment may only be carried

out by a qualified electrician.

■The system must be commissioned by the system

installer or a qualified person authorised by the

installer.

Regulations to be observed

■National installation regulations

■Statutory regulations for the prevention of accidents

■Statutory regulations for environmental protection

■Codes of practice of the relevant trade associations

■Relevant country-specific safety regulations

Safety instructions for working on the system

Working on the system

■Where gas is used as the fuel, close the main gas

shut-off valve and safeguard it against unintentional

reopening.

■Isolate the system from the power supply, e.g. by

removing the separate fuse or by means of a mains

isolator, and check that it is no longer live.

■Safeguard the system against reconnection.

■Wear suitable personal protective equipment when

carrying out any work.

Danger

Hot surfaces and fluids can lead to burns or

scalding.

■Before maintenance and service work, switch

OFF the appliance and let it cool down.

■Never touch hot surfaces on the boiler, burner,

flue system or pipework.

!Please note

Electronic assemblies can be damaged by elec-

trostatic discharge.

Prior to commencing work, touch earthed

objects such as heating or water pipes to dis-

charge static loads.

Repair work

!Please note

Repairing components that fulfil a safety func-

tion can compromise the safe operation of the

system.

Replace faulty components only with genuine

Viessmann spare parts.

Auxiliary components, spare and wearing parts

!Please note

Spare and wearing parts that have not been tes-

ted together with the system can compromise its

function. Installing non-authorised components

and making non-approved modifications or con-

versions can compromise safety and may inva-

lidate our warranty.

For replacements, use only original spare parts

supplied or approved by Viessmann.

Safety instructions

5838001

Safety instructions for operating the system

If you smell gas

Danger

Escaping gas can lead to explosions which may

result in serious injury.

■Do not smoke. Prevent naked flames and

sparks. Never switch lights or electrical appli-

ances on or off.

■Close the gas shut-off valve.

■Open windows and doors.

■Evacuate any people from the danger zone.

■Notify your gas or electricity supply utility from

outside the building.

■Have the power supply to the building shut off

from a safe place (outside the building).

If you smell flue gas

Danger

Flue gas can lead to life threatening poisoning.

■Shut down the heating system.

■Ventilate the installation site.

■Close doors to living spaces to prevent flue

gases from spreading.

What to do if water escapes from the appliance

Danger

If water escapes from the appliance there is a

risk of electrocution.

Switch OFF the heating system at the external

isolator (e.g. fuse box, domestic distribution

board).

Danger

If water escapes from the appliance there is a

risk of scalding.

Never touch hot heating water.

Condensate

Danger

Contact with condensate can be harmful to

health.

Never let condensate touch your skin or eyes

and do not swallow it.

Flue systems and combustion air

Ensure that flue systems are clear and cannot be

sealed, for instance due to accumulation of conden-

sate or other external causes.

Ensure an adequate supply of combustion air.

Inform system users that subsequent modifications to

the building characteristics are not permissible (e.g.

cable/pipework routing, cladding or partitions).

Danger

Leaking or blocked flue systems, or an inade-

quate supply of combustion air can cause life

threatening poisoning from carbon monoxide in

the flue gas.

Ensure the flue system is in good working order.

Vents for supplying combustion air must be non-

sealable.

Extractors

Operating appliances that exhaust air to the outside

(extractor hoods, extractors, air conditioning units, etc.)

can create negative pressure. If the boiler is operated

at the same time, this can lead to a reverse flow of flue

gas.

Danger

The simultaneous operation of the boiler and

appliances that exhausts air to the outside can

result in life threatening poisoning due to a

reverse flow of flue gas.

Fit an interlock circuit or take suitable steps to

ensure an adequate supply of combustion air.

Safety instructions

Safety instructions (cont.)

5838001

1. Information Disposal of packaging ............................................................................ 5

Symbols ................................................................................................. 5

System examples .................................................................................. 5

2. Installation sequence Mounting the mixer extension kit ........................................................... 6

■Mixer mounting ................................................................................... 6

■Wall mounting ..................................................................................... 6

Mounting the temperature sensor .......................................................... 7

■Installing the flow temperature sensor (contact temperature sensor) . 7

■Installing the flow temperature sensor on the Divicon heating circuit

distributor ............................................................................................ 7

Overview of electrical connections ........................................................ 8

Connecting the flow temperature sensor ............................................... 8

Connecting the temperature sensor of the low loss header (if installed) 8

Connecting the mixer motor ................................................................... 8

■Mixer motor ......................................................................................... 9

■Mixer motors without plug or on-site mixer motors ............................. 9

Connecting the heating circuit pump ..................................................... 10

■Heating circuit pump 230 V~ .............................................................. 10

■Heating circuit pump 400 V~ .............................................................. 11

■Pumps in the underfloor heating circuit (in case of system separa-

tion) ..................................................................................................... 12

■Temperature limiter for maximum temperature limiter (accessories) .. 12

Rotary switch S1 for subscriber number addressing ............................. 13

Connecting the PlusBus to the heat generator ...................................... 13

Power supply ......................................................................................... 14

■Power supply at heat generator .......................................................... 14

■Separate power supply ....................................................................... 14

Connecting several accessories ............................................................ 16

■Power supply and PlusBus connection .............................................. 16

Commissioning ...................................................................................... 16

■Rotational direction of the mixer motor ............................................... 17

3. Parts lists Parts list ................................................................................................. 18

■Wall mounting ..................................................................................... 19

■Mixer mounting ................................................................................... 21

4. Specification Specification .......................................................................................... 23

Connection and wiring diagram ............................................................. 24

5. Declaration of Conformity Declaration of conformity ....................................................................... 25

6. Keyword index ................................................................................................................ 26

Index

5838001

Please dispose of packaging waste in line with statu-

tory regulations.

Symbols

Symbol Meaning

Reference to other document containing

further information

Step in a diagram:

The numbers correspond to the order in

which the steps are carried out.

Warning of material losses and environ-

mental pollution

Live electrical area

Pay particular attention.

■Component must audibly click into place.

■Acoustic signal

■Fit new component.

■In conjunction with a tool: Clean the sur-

face.

Dispose of component correctly.

Dispose of component at a suitable collec-

tion point. Do not dispose of component in

domestic waste.

System examples

For available system examples, see www.viessmann-

schemes.com

Information

Disposal of packaging

5838001

Information

Mixer mounting

M6/M8

Fig. 1

Wall mounting

Fig. 2

Installation sequence

Mounting the mixer extension kit

5838001

Installation

Installing the flow temperature sensor (contact temperature sensor)

■Fit the flow temperature sensor to the heating flow

pipe immediately downstream of the heating circuit

pump in the flow direction.

■With plastic pipes, mount the sensor against an inter-

mediate metal pipe section.

■Clean the contact area on the pipe down to bare

metal.

■Heat conducting paste is not required.

■Do not thermally insulate the temperature sensor.

100

Fig. 3

Installing the flow temperature sensor on the Divicon heating circuit distributor

Installation instructions for Divicon heating cir-

cuit distributor

Installation sequence

Mounting the temperature sensor

5838001

Installation

L?N

jF jF [{] fÖ

1~ 230 V~/50 Hz

L?NL

gS sÖ

[{] [{] [{] [{{]

)

Fig. 4

Plug 230 V~

P1 sÖ Heating circuit pump (on site)

P3 gS Mixer motor

fÖ Power supply

fÖAPower supply for accessories

LV connections

PWM1 No function

S1 Rotary switch for subscriber number address-

ing

TS1 ?Flow temperature sensor

TS2 No function

TS3 )Temperature sensor, low loss header

jF PlusBus

!Please note

Electronic assemblies can be damaged by elec-

trostatic discharge.

Prior to commencing any work, touch earthed

objects such as heating or water pipes to dis-

charge static loads.

Note

Apply strain relief to on-site cables.

Seal any unnecessary apertures with cable grommets

(not cut open).

Connecting the flow temperature sensor

Insert plug ? at slot TS1 (see diagram 4).

Connecting the temperature sensor of the low loss header (if installed)

Insert plug ) at slot TS3 (see diagram 4).

Connecting the mixer motor

Only in conjunction with extension kit for wall mounting

Installation sequence

Overview of electrical connections

5838001

Installation

Mixer motor

Fig. 5

APlug on mixer motor

gS Plug on mixer extension kit

|Mixer open

~Mixer close

Connect the mixer motor in accordance with the dia-

gram in the wall mounting base of the extension kit.

Never interchange wires.

Mixer motors without plug or on-site mixer motors

1~ A

Fig. 6

AMixer motor

gS Plug on mixer extension kit

|Mixer open

~Mixer close

Connect the mixer motor in accordance with the dia-

gram in the wall mounting base of the extension kit.

Never interchange wires.

The mixer motor must meet the following criteria:

Rated voltage 230 V∼

Rated breaking capacity of the

relay output

0.1 A

Runtime for 90º∢120 s

Rotational direction Can be changed

Installation sequence

Connecting the mixer motor (cont.)

5838001

Installation

Note

In underfloor heating circuits, install a temperature lim-

iter on site to restrict the maximum temperature of the

underfloor heating system.

Heating circuit pump 230 V~

Fig. 7

AHeating circuit pump

BPlug sÖ on the mixer extension kit

Specification

Rated current 1 A

Recommended connecting

cable

H05VV-F3G 0.75 mm2

H05RN-F3G 0.75 mm2

Heating circuit pump with power consumption greater than 1 A or high efficiency circulation pumps with

high starting currents

Pumps with switching input

External

ON/OFF

N PE

Fig. 8

AHeating circuit pump

BPlug sÖ on the mixer extension kit

CContactor

DSeparate power supply (observe manufacturer's

instructions)

Specification for switching the contactor:

Rated voltage 230 V∼

Rated current 1 A

Recommended connecting

cable

H05VV-F3G 0.75 mm2

H05RN-F3G 0.75 mm2

Installation sequence

Connecting the heating circuit pump

5838001

Installation

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