Viessmann EM-S1 Guida rapida

Installation and service instructions

for contractors

VIESMANN

Solar EM-S1 extension

ADIO electronics module

Function extension for connecting a solar thermal system

Solar EM-S1 extension

5837803 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

5837803

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.)

5837803

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

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

Intended use .......................................................................................... 5

System examples .................................................................................. 6

2. Installation sequence Wall mounting ........................................................................................ 7

Overview of electrical connections ........................................................ 7

Rotary switch S1 .................................................................................... 8

Connecting the PlusBus to the heat generator ...................................... 8

Power supply ......................................................................................... 9

■Power supply at heat generator .......................................................... 9

■Separate power supply ....................................................................... 9

3. Commissioning Configuring the solar EM-S1 extension ................................................. 11

4. Troubleshooting Faults displayed with a fault code .......................................................... 12

Faults displayed without a fault code ..................................................... 12

Repairs .................................................................................................. 12

■Checking the solar circuit pump at output P1 ..................................... 12

■Checking the temperature sensors ..................................................... 13

5. Parts lists Parts list ................................................................................................. 15

6. Function description ................................................................................................................ 17

7. Specification Specification .......................................................................................... 19

Connection and wiring diagram ............................................................. 19

8. Declaration of Conformity Declaration of conformity ....................................................................... 20

9. Keyword index ................................................................................................................ 21

Index

5837803

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.

Intended use

The device serves to control heating systems with

solar DHW heating.

Commercial or industrial use for a purpose other than

heating the solar circuit shall be deemed inappropriate.

Intended use presupposes that a permanent installa-

tion in conjunction with permissible components

designed for this purpose has been carried out.

All other use is deemed inappropriate. Any resulting

losses are excluded from the manufacturer's liability.

Any usage beyond this must be approved by the man-

ufacturer in each individual case.

Intended use also includes adherence to maintenance

and inspection intervals.

Information

Disposal of packaging

5837803

Information

For available system examples, see www.viessmann-

schemes.com

Information

System examples

5837803

Information

Fig. 1

Overview of electrical connections

jF jF [{] [{] [{] [{] fÖ

230 V~/50 Hz

? ?

[{{]

&% ?

Fig. 2

Plug 230 V~

P1 sF Solar circuit pump

P3 fH Transfer pump

fÖ Power supply

fÖAPower supply for accessories

Extra low voltage connections

PWM1 Speed control, solar circuit pump

TS1 %Cylinder temperature sensor NTC 10 kΩ

TS2 &Collector temperature sensor NTC 20 kΩ

TS3 No function

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.

Secure individual wires directly to each plug using

cable ties.

Seal any unnecessary apertures with cable grommets

(not cut open).

Installation sequence

Wall mounting

5837803

Installation

Fig. 3

Set rotary switch S1 to 0 (factory setting is 1).

Note

The rotary switch can be found on the PCB of the elec-

tronics module.

Connecting the PlusBus to the heat generator

1 2

jF jF

1234

Fig. 4

AExtension

BPlusBus to heat generator

Note

If making the connection to the heat generator with an

external plug for the bus connection, disconnect plug

jF and connect the wires directly.

Heat generator installation and service instruc-

tions

Installation sequence

Rotary switch S1

5837803

Installation

Power supply at heat generator

L?NL

156

Fig. 5

AExtension

fÖ Power supply

fÖAPower supply for further accessories

aBH Plug for heat generator accessories power supply

Create the power supply connection.

Route the power cable to the heat generator and con-

nect to plug aBH. Observe fuse protection at output,

plug aBH of the heat generator.

If power is supplied to a further accessory, use plug

fÖA provided

Heat generator installation and service instruc-

tions

Danger

Incorrect core assignment can result in serious

injury and damage to the appliance.

Never interchange cores "L" and "N".

Separate power supply

If the power supply for the extension is not made at

the heat generator.

Danger

Incorrect electrical installations can lead to seri-

ous injury from electrical current and result in

appliance damage.

Connect the power supply and implement all

safety measures (e.g. RCD circuit) in accord-

ance with the following regulations:

■IEC 60364-4-41

■VDE regulations

■TAR medium voltage VDE-AR-N-4110

Danger

The absence of system component earthing can

lead to serious injury from electric current if an

electrical fault occurs.

The appliance and pipework must be connected

to the equipotential bonding of the building.

Isolators for non-earthed conductors

■The mains isolator (if installed) must simultaneously

isolate all non-earthed conductors from the mains

with a minimum contact separation of 3 mm.

■If no mains isolator is installed, all non-earthed con-

ductors must be isolated from the power supply by

the upstream circuit breaker with a minimum contact

separation of 3 mm.

Installation sequence

Power supply

5837803

Installation

Fig. 6

APower supply for extension

BPower supply for heat generator

CPower supply 1/N/PE, 230 V/50 Hz

DFuse (max. 16 A)

EMains isolator, 2-pole, on site

FJunction box (on site)

Connect the power supply in accordance with the dia-

gram.

If the power supply to the appliance is connected with

a flexible cable, ensure that the live conductors are

pulled taut before the earth conductor in the event of

strain relief failure. The length of the earth conductor

wire will depend on the design.

Danger

Incorrect core assignment can result in serious

injury and damage to the appliance.

Never interchange cores "L" and "N".

!Please note

Incorrect phase sequence can cause damage to

the appliance.

Ensure phase equality with the heat generator

power supply.

Colour coding to IEC 60757

BN Brown

BU Blue

GNYE Green/yellow

Installation sequence

Power supply (cont.)

5837803

Installation

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