Viessmann AM1 Manuale utente

5443 275 GB 4/2017

Installation instructions

for contractors

VIESMANN

AM1 extension

Function extension

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 envi-

ronmental pollution.

Note

Details identified by the word "Note"

contain additional information.

Installation, initial start-up, inspection,

maintenance and repairs must only be

carried out by a competent person

(heating engineer/installation contrac-

tor).

Before working on the equipment/heat-

ing system, isolate the power supply

(e.g. by removing a separate 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 unauthorised reopening.

Repairing components which fulfil a

safety function can compromise the

safe operation of your heating system.

For replacements, use only original

spare parts supplied or approved by

Viessmann.

Overview of electrical connections

aVG

L?NL

fÖ

L?N

1~ 230 V~

1 2 3 4

aVG

L?N

[]

A2 []

A1 f-]

230 V~

sAsÖ sK sAsÖ sK

A1 Circulation pump or

central fault message facility (only

with Vitotronic 200, type WO1C)

A2 Circulation pump

fÖ Power supply

fÖ A Power supply for additional

accessories

aVG KM-BUS to the control unit and

additional accessories

AAM1 extension

Wall mounting

5443 275 GB

!Please note

Electronic assemblies can be

damaged by electrostatic loads.

Before beginning work, touch an

earthed object such as heating

or water pipes to discharge any

static.

Note

Apply strain relief to on-site cables.

Seal any unnecessary apertures with

cable grommets (not cut open).

Connections to A1 and A2

Circulation pumps and 3-way diverter valve

One of the following circulation pumps

can be connected to each of the con-

nections A1 and A2:

■ Heating circuit pump for heating cir-

cuit without mixer sÖ

■ Circulation pump for cylinder heating

sA or 3-way diverter valve in con-

junction with multi mode heating

water buffer cylinder

■DHW circulation pump sK

■ Circulation pump for neutralising sys-

tem

■ Circulation pump for Vitoradial 300-T

or Vitotrans 300

■ Distribution pump (only with

Vitotronic 300 type CM1E, CM1I)

? ??

fÖ[]

A2 []

A1 f-]

sAsÖ sK sAsÖ sK

Rated voltage 230 V~

Rated current: 2 (1) A

Recommended

connecting cable:

H05VV-F3G

0.75 mm2

H05RN-F3G

0.75mm2

If connecting circulation pumps with a

total output above 500 W, connect the

power cable of the AM1 extension

directly to the mains power supply. See

page 11.

Overview of electrical connections (cont.)

5443 275 GB

Recommendation

■ Connect the heating circuit pump for

heating circuit without mixer sÖ to

output A1. The frost protection func-

tion of the boiler control unit is ena-

bled for output A1.

■ Preferably connect circulation pump

for cylinder heating sA or 3-way

diverter valve to output A1.

■ Preferably connect the circulation

pump for the Vitoradial 300-T or

Vitotrans 300, the circulation pump

for the neutralising system and the

distribution pump to output A1.

■Connect DHW circulation pump sK to

output A2.

If a fault occurs at AM1 extension or

communication is interrupted, output A1

is switched on and output A2 is

switched off (provisional operation).

Information on DHW circulation

pumps

Connect DHW circulation pumps with

standalone functions directly to the

230 V

∼

supply.

Allocating functions for outputs A1 and A2

Vitotronic control units, type:

■ Vitotronic 100, type CC1E, CC1I

■ Vitotronic 200, type CO1E, CO1I

■ Vitotronic 300, type CM1E, CM1I

Select the output functions by adjusting

the parameter settings on the boiler

control unit:

Function Parameter

Output A1 Output A2

DHW circulation pump sK 31:0 32:0 (delivered condi-

tion)

Heating circuit pump sÖ 31:1 (delivered con-

dition)

32:1

Circulation pump for cylinder heating

sA or 3-way diverter valve in con-

junction with multi mode heating wa-

ter buffer cylinder

31:2 32:2

Circulation pump for neutralising

system or flue gas heat exchanger

31:3 32:3

Connections to A1 and A2 (cont.)

5443 275 GB

Function Parameter

Output A1 Output A2

Circulation pump for Vitoradial 300-T

or Vitotrans 300

31:3 32:3

Distribution pump (only with

Vitotronic 300, type CM1E, CM1I)

31:4 32:4

All other Vitotronic control units

Select the output functions by adjusting

the codes on the boiler control unit:

Function Code/parameter

Output A1 Output A2

DHW circulation pump sK 33:0 34:0 (delivered condi-

tion)

Heating circuit pump sÖ 33:1 (delivered con-

dition)

34:1

Circulation pump for cylinder heating

sA or 3-way diverter valve in con-

junction with multi mode heating wa-

ter buffer cylinder

33:2 34:2

Circulation pump for neutralising

system or flue gas heat exchanger

33:3 34:3

Circulation pump for Vitoradial 300-T

or Vitotrans 300

33:3 34:3

Service instructions for boiler or

Vitotronic

Connections to A1 and A2 (cont.)

5443 275 GB

Connections to Vitotronic 200, type WO1C

Connecting the central fault mes-

sage facility

L?NL

L?N

fÖ[]

A2 []

A1 f-]

sAsÖ sK sAsÖ sK

Connect the central fault message

facility to A1.

Rated voltage 230 V~

Rated current: 2 (1) A

Recommended

connecting cable:

H05VV-F3G

0.75 mm2

H05RN-F3G

0.75 mm2

Changeover of primary source in

conjunction with ice store

Installation instructions for ice

store extension

Parameters for Vitotronic 200, type

WO1C

To enable the AM1 extension and

assign functions:

Service instructions for

Vitotronic 200, type WO1C

Connecting the KM-BUS to the heat generator control unit

Note

If the KM-BUS connection to the control

unit takes the form of screw terminals,

remove plug aVG from the cable sup-

plied. The cores are interchangeable.

Installation and service instruc-

tions for heat generator control

unit

Connections to A1 and A2 (cont.)

5443 275 GB

3 2 17 6 5 4

X3X4 D

145

1 2

2 1 54321

X3X4 aVG

X14

aVG

AAM1 extension

BKM-BUS connection for additional

accessories

CConnection to:

■ Vitotronic control unit for floor-

standing boilers (except

Vitotronic 200, type KW6...)

■ Heat pumps with Vitotronic 200,

type WO1C

■ or

KM-BUS distributor

DVitotronic control unit with screw

terminals for KM-BUS connection

EWall mounted gas condensing boil-

ers and storage combi boilers with

plug aVG

Connecting the KM-BUS to the heat generator… (cont.)

5443 275 GB

Power supply to the heat generator control unit or additional

accessories

Possible designation of the power sup-

ply concerned:

■fÖ A

■lH

■aBH

Danger

Incorrect core assignment can

result in serious injury and dam-

age to the appliance.

Never interchange cores "L" and

"N".

Power supply to the boiler control unit

L?NL

L?N

230 V~

fÖ[]

A2 []

A1 f-]

sAsÖ sK sAsÖ sK

L?N

230 V~

AAM1 extension BBoiler control unit

Power supply

5443 275 GB

Power supply to Vitotronic 200, type WO1C

230 V~

X1X2.N X3.1/

X3.2/

X3.3

? ???

fÖ[]

A2 []

A1 f-]

sAsÖ sK sAsÖ sK

AAM1 extension BVitotronic 200, type WO1C

Power supply (cont.)

5443 275 GB

Power supply and KM BUS connection of accessories

Power supply to all accessories via heat source control unit

fÖ

B C

aVG

fÖ

A D

aVG

f-]

aVG

f-]

fÖ

aVG

f-]

Some accessories with direct power supply

B C

A D

fÖ

aVG

fÖ

aVG

f-]

aVG

f-]

fÖ

aVG

f-]

AHeat source control unit

BExtension kit for heating circuit with

mixer M2

CExtension kit for heating circuit

with mixer M3

DAM1 extension, EA1 extension

and/or solar control module, type

SM1

EON/OFF switch

fÖ Mains input

fÖAPower outlet

lH Control unit power outlet

aVG KM BUS connection

If the current flowing to the connected

working parts (e.g. circulation pumps) is

higher than the fuse rating of the

respective accessory: Only use the out-

put concerned to control an on-site

relay.

Accessories Internal fuse

protection

Extension kit for

heating circuit with

mixer

2 A

AM1 extension 4 A

EA1 extension 2 A

Solar control module,

type SM1

2 A

Power supply (cont.)

5443 275 GB

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