Viessmann EM-P1 Mode d'emploi

5838022 GB 5/2020 Please keep safe.

Installation and service instructions

for contractors

VIESMANN

EM-P1 extension

ADIO electronics module

Function extension for connecting circulation pumps

Safety instructions

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.

Installation, commissioning, inspection, maintenance

and repairs must only be carried out by an authorised,

competent person (heating engineer/installation con-

tractor).

Before working on the appliance/heating system, iso-

late it from the power supply (e.g. by removing a sepa-

rate mains fuse or by means of a mains isolator) and

safeguard against unauthorised reconnection.

When using gas as fuel, also close the main gas shut-

off valve and safeguard against unintentional reopen-

ing.

Check for gas tightness after installation.

Wear suitable personal protective equipment when

carrying out any work.

Repairing components that fulfil a safety function can

compromise the safe operation of the system.

For replacements, use only original spare parts sup-

plied or approved by Viessmann.

Install the components with new gaskets.

Disposal of packaging

Please dispose of packaging waste in line with statu-

tory regulations.

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.viess-

mann-schemes.com

Application information

The following circulation pumps can be connected:

■Heating circuit pump for heating circuit without mixer

■DHW circulation pump

Symbols

5838022

Information about spare parts can be found at

www.viessmann.com/etapp or in the Viessmann

spare part app.

Wall mounting

Fig. 1

Overview of electrical connections

jF jF [{] [{] [{] [{] fÖ

1~ 230 V~/50 Hz

? ?

sÖ

[{{]

)

Fig. 2

Plug 230 V~

P1sÖ Heating circuit pump (on site)

P3fH DHW circulation pump (on site)

fÖ Power supply

fÖAPower supply for accessories

Spare parts lists

5838022

LV connections

PWM1 No function

TS1 No function

TS2 No function

TS3 )Immersion 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.

Secure individual wires directly to each plug using

cable ties.

Seal any unnecessary apertures with cable grommets

(not cut open).

Connecting immersion temperature sensor for low loss header

Insert plug ) of immersion temperature sensor into

slot TS3.

Note

If a mixer extension kit is connected in the system,

connect temperature sensor ) to the EM-M1 or EM-

MX extension.

Connecting the DHW circulation pump

Fig. 3

ADHW circulation pump

BPlug fH to slot P3

1. If there is already a plug connected to the DHW cir-

culation pump: Remove it and connect plug fH.

2. Insert plug fH of DHW circulation pump into slot

P3.

Specification

Rated current 1 A

Recommended connecting

cable

H05VV-F3G 0.75 mm2

H05RN-F3G 0.75 mm2

Overview of electrical connections (cont.)

5838022

Fig. 4

AHeating circuit pump

BPlug sÖ to slot P1

Specification

Rated current 1 A

Recommended connecting

cable

H05VV-F3G 0.75 mm2

H05RN-F3G 0.75 mm2

Connecting pumps with switching input

Heating circuit pump with power consumption greater

than 1 A or high efficiency circulation pumps with high

starting currents

External

ON/OFF

N PE

Fig. 5

AHeating circuit pump

BPlug sÖ to slot P1

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

Connecting pumps without switching input

Heating circuit pump with power consumption greater

than 1 A or high efficiency circulation pumps with high

starting currents

Connecting a 230 V~ heating circuit pump

5838022

N PE

Fig. 6

AHeating circuit pump

BPlug sÖ to EM-P1 extension

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

Connecting a 400 V~ heating circuit pump

LN L1 L2 L3 N PE

Fig. 7

AHeating circuit pump

BPlug sÖ to EM-P1 extension

CContactor

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

Connecting a 230 V~ heating circuit pump (cont.)

5838022

Fig. 8

Rotary switch S1 on the EM-P1 extension and rotary

switch S1 on the mixer extension kit must be set

according to the following table.

Heating

circuit

Rotary switch S1

on EM-P1 exten-

sion

Factory setting: 1

Rotary switch S1

on mixer extension

kit

Factory setting: 1

System with 1 heating circuit without mixer

1 1 —

System with 1 heating circuit with mixer

2 2 1

System with several heating circuits with mixer

2 2 1

3 3 2

4 4 3

Connecting the PlusBus to the heat generator

1 2

jF jF

1234

Fig. 9

AExtension (electronics module)

BPlusBus to heat generator

For connection to heat generators with external

plug, luster terminals or spring-loaded terminals:

For the bus connection, disconnect plug jF. Connect

the wires directly. The wires are interchangeable.

Heat generator installation and service instruc-

tions

Rotary switch S1

5838022

Power supply at heat generator

L?NL

156

Fig. 10 Example: Power supply with plug aBH

AExtension (electronics module)

fÖ Power supply

fÖAPower supply for further accessories

aBH Plug for heat generator accessories power supply

Connect the power cable to the extension.

Route the power cable to the heat generator and con-

nect to plug aBH. Observe the fuse protection of the

contact (output) on the heat generator.

If the power supply is connected to another 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".

If there is no plug aBH at the heat generator:

■Use a separate power supply. See the following

chapter.

■Heat generator installation and service instruc-

tions

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

■Connection conditions of the local grid opera-

tor

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.

Power supply

5838022

Fig. 11

APower supply for extension (electronics module)

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

Connecting several accessories

Power supply and PlusBus connection

Power supply to all accessories via heat generator control unit

40A

B C

96/156

40A

Fig. 12

Some accessories with direct power supply

40A

B C

96/156

40A

Fig. 13

Power supply (cont.)

5838022

AHeat generator control unit

BMixer extension kit for heating circuit with

mixer M2 (electronics module)

CMixer extension kit for heating circuit with

mixer M3 (electronics module)

DFurther accessories

EON/OFF switch

fÖ (A) Power supply

jF PlusBus

lH/aBH Power supply to accessories in the heat gen-

erator control unit

■In the following circumstances, use the contact (out-

put) of the accessories only to switch an on-site

relay:

An actuator with a higher power demand than the

fuse rating required for the accessories, e.g. a circu-

lation pump, is connected to the contact (output) of

the accessories.

■In the following circumstances, connect one or more

accessories directly to the mains supply via an

ON/OFF switch:

The max. permissible total current of the heat gener-

ator control unit is exceeded.

Note

In this event, the accessories concerned cannot be

isolated with the ON/OFF switch on the control unit.

Connection and wiring diagram

Fig. 14

A1 PCB, EM-P1 extension (ADIO electronics module)

A2 PCB

F1 Fuse

S1 Rotary switch

Connecting several accessories (cont.)

5838022

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