Viessmann EM-EA1 extension Installation And Service Instructions Manual Download Page 5

Page: 5 / 16

Rotary switch S1 must be set to

(fac-

tory setting).

Connecting the PlusBus to the heat generator control unit

[{]

DI1 DI2 DI3

1 2 3 4 1 2 3 4 5 6

Extension

PlusBus to heat generator

Note

If making the connection to the heat
generator with an external plug for the
bus connection, disconnect plug

and connect the wires directly.

Heat generator installation and
service instructions

Rotary switch S1

5831392

Summary of Contents for EM-EA1 extension

Page 1: ...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...

Page 2: ...2 1 Overview of electrical connections jF jF hH f 1 2 3 4 1 2 3 4 5 6 1 2 1 2 1 2 1 fD K1 DI1 Digital input 1 Mounting on the wall 5831392...

Page 3: ...sories hH Connection for fault message signalling equipment floating switching contact jF PlusBus Please note Electronic assemblies can be damaged by static loads Before beginning work touch an earthe...

Page 4: ...nctions Fault message input 230 V When the contact is closed the gas condensing module and fuel cell module are blocked Fault message output hH is activated External fault message Fault message output...

Page 5: ...74 1 2 A jF jF DI1 DI2 DI3 1 2 3 4 1 2 3 4 5 6 A Extension B PlusBus to heat generator Note If making the connection to the heat generator with an external plug for the bus connection disconnect plug...

Page 6: ...o plug aBH If power is supplied to a further acces sory use plug f A provided Heat generator installation and service instructions Danger Incorrect core assignment can result in serious injury and dam...

Page 7: ...ric current if an electrical fault occurs The appliance and pipework must be connected to the equi potential bonding of the building Isolators for non earthed conductors The mains isolator if installe...

Page 8: ...ure 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 ass...

Page 9: ...0 10 V OUT 0 10 V output no func tion PWM1 Output control voltage no function S1 Rotary switch Z1 230 V relay output with 230 V input f Power supply f A Power supply for addi tional accessories hH Con...

Page 10: ...10 The following details are required when ordering parts Serial no see type plate Position number of the part Parts list 5831392...

Page 11: ...11 0015 0014 0002 0005 0004 0006 0013 A A Type plate Parts list cont 5831392...

Page 12: ...ient temperature During operation 0 to 40 C During storage and transport 20 to 60 C Output for rated breaking capacity hH float ing 1 A 230 V Declaration of Conformity We Viessmann Werke GmbH Co KG D...

Page 13: ...13 5831392...

Page 14: ...14 5831392...

Page 15: ...15 5831392...

Page 16: ...Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com...