Viessmann VITOTRONIC 100 GC1B Service Manual download pdf (Page 20)

Heating system types

Circuit Diagram 7 (continued)

Possible applications

E.g. old systems or systems in market

gardens and/or systems in which there

is no facility for making modifications

or adjustments to the heating circuits

connected downstream.

The cascade and DHW tank control

must be activated by a building

automation system.

This circuit diagram represents a

recommendation only. It is the

responsibility of the customer and/or

heating contractor to check that this

recommendation is complete and fully

functional. Three-phase equipment

must be connected via additional

power contactors.

When the return temperature falls

below the required minimum value,

the 3-port mixing valve on the boilers

is proportionally closed via the

temperature sensor T1, thereby

assuring protection of the boiler.

The boiler and the heating circuits

downstream are hydraulically

decoupled. The supply temperature

is controlled via the common

temperature sensor.

Available system accessories

 Flue gas temperature sensor

Coding of

system type

Change required Automatic change

01: 1 Set coding ”01: 3” for multi-boiler system

with external cascade control via switch

contacts

–––

02: 1 Set coding ”02: 2” for operation with

modulating burner

–––

03: 0 Set coding ”03: 1” for oil-fired operation

(re-setting is not possible)

–––

0C: 4 Set coding ”0C: 1” for continuous return

temperature control

–––

4A: 0 ––– Connection of the temperature sensor T1 at

plug aJA;

Coding is automatically changed to ”4A: 1”

4d: 1 Set coding ”4d: 2” for boiler circuit pump

at plug sL

–––

5351 338 v1.6

IMPORTANT

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 131 132

Comments to this Manuals

No comments

Viessmann VITOTRONIC 100 GC1B Service Manual Page 20

Comments to this Manuals

Related products and manuals for Water heaters & boilers Viessmann VITOTRONIC 100 GC1B