Electric Return Temperature Raising Facility (Assemblies Partially Pre-Assembled); Pipe Union; Adaptor Unit; Reducer - Viessmann VITOLIGNO 200-S Technical Manual

Installation accessories

Electric return temperature raising facility (assemblies partially pre-assembled)

c
5

Pipe union

Adaptor unit

Part no. 7159 411
To connect the return temperature raising facility to the Divicon.
Comprising:
■ 2 adaptors R 1½ (with offset)
■ Gaskets

Reducer

Part no. 7517 579
For 40 and 50 kW boilers.
G 2 x G 1½
For flow and return connection (2 pce required) not in conjunction with
pipe union.
VIESMANN
60
(cont.)
c
When using the control function, a control valve for the buffer cylinder
must also be ordered.
Part no. 7172 983
Nominal diame- DN 25
ter
a mm 509
b mm 157
c G 1½
Part no. 7172 983
DN 25
For 20 and 30 kW boilers.
Comprising:
■ Buffer control valve
■ Return temperature raising valve
■ Actuators (2 pce)
■ Cable set, connection accessories
■ Variable speed high efficiency circulation pump Wilo Yonos PARA
25/6
Part no. 7172 984
DN 32
For 40 and 50 kW boilers.
Comprising:
■ Buffer control valve
■ Return temperature raising valve
■ Actuators (2 pce)
■ Cable set, connection accessories
■ Variable speed high efficiency circulation pump Wilo Yonos PARA
30/7.5
When using the control function, a control valve for the heating water
buffer cylinder must also be ordered.
Part no. 7424 592
For 20 and 30 kW boilers.
For thermal return temperature raising facility, part no. 7172 808
1 set with 2 pce (2 sets required)
G 1½ x R 1
Part no. 7424 591
For 40 and 50 kW boilers.
For thermal return temperature raising facility, part no. 7172 809
1 set with 2 pce (2 sets required)
G 2 x R 1¼
7172 984
DN 32
587
192
G 2
VITOLIGNO 200-S