Viessmann AM1 User manual

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.

2
1.
2.
Overview of electrical connections
aVG
A
L?NL
?
N
fÖ
L?N
M
1~ 230 V~
1 2 3 4
aVG
L?N
M
1~
[]
A2 [] A1 f-]
A
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
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!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)
? ??
M
1~
?
M
1~
fÖ[]
A2 [] A1 f-]
A
sAsÖ sK sAsÖ sK
Rated voltage 230 V~
Rated current: 2 (1) A
Recommended
connecting cable:
H05VV-F3G
0.75 mm2
or
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.)
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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.)
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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.)
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Connections to Vitotronic 200, type WO1C
Connecting the central fault mes-
sage facility
L?NL
?
N
L?N L?N
fÖ[]
A2 [] A1 f-]
A
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
or
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.)
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C
3 2 17 6 5 4
X3X4 D
145
1 2
E
2 1 54321
X3X4 aVG
X14
aVG
A
B
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.)
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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
?
N
L?N
230 V~
A
fÖ[]
A2 [] A1 f-]
A
sAsÖ sK sAsÖ sK
L?N
230 V~
B
AAM1 extension BBoiler control unit
Power supply
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Power supply to Vitotronic 200, type WO1C
B
230 V~
X1X2.N X3.1/
X3.2/
X3.3
?
? ???
fÖ[]
A2 [] A1 f-]
A
sAsÖ sK sAsÖ sK
A
AAM1 extension BVitotronic 200, type WO1C
Power supply (cont.)
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Power supply and KM BUS connection of accessories
Power supply to all accessories via heat source control unit
fÖ fÖ
B C
aVG fÖ lH
A D
E
aVG aVG f-]
A
aVG aVG f-]
A
fÖ aVG aVG f-]
A
Some accessories with direct power supply
B C
A D
E
fÖ fÖ aVG fÖ lH aVG aVG f-]
A
aVG aVG f-]
A
fÖ aVG aVG f-]
A
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