Viessmann EM-P1 Istruzioni operative
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.
2
Symbol Meaning
Reference to other document containing
further information
1.
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.
or
■Acoustic signal
■Fit new component.
or
■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
3
Information about spare parts can be found at
www.viessmann.com/etapp or in the Viessmann
spare part app.
Wall mounting
2.
1.
Fig. 1
Overview of electrical connections
??
jF jF [{] [{] [{] [{] fÖ
M
1~ 230 V~/50 Hz
? ?
sÖ
[{{]
?
fH
M
1~
)
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
4
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
B
A
1~
M
?
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
or
H05RN-F3G 0.75 mm2
Overview of electrical connections (cont.)
5838022
5
B
A
1~
M
Fig. 4
AHeating circuit pump
BPlug sÖ to slot P1
Specification
Rated current 1 A
Recommended connecting
cable
H05VV-F3G 0.75 mm2
or
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
LN
External
ON/OFF
LN
N PE
NL
L
D
C
A
B
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
or
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
6
LN
LN
N PE
NL
L
D
C
A
B
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
or
H05RN-F3G 0.75 mm2
Connecting a 400 V~ heating circuit pump
LN L1 L2 L3 N PE
A
C
3~
M
B
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
or
H05RN-F3G 0.75 mm2
Connecting a 230 V~ heating circuit pump (cont.)
5838022
7
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
B
74
1 2
A
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
8
Power supply at heat generator
L?NL
?
N
156
LN
A
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.
Or
■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
9
L1
B
FE
D
D
N
C
A
40
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
74
74
40A
40
74
74
40A
40
B C
74
40
96/156
A
74
74
40A
40
D
E
Fig. 12
Some accessories with direct power supply
74
74
40A
40
74
74
40A
40
B C
74
40
96/156
A
74
74
40A
40
D
E
Fig. 13
Power supply (cont.)
5838022
10
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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