Safety Equipment Block; Thermally Activated Safety Valve; Water Level Limiter; Buffer Cylinder Connection Unit - Viessmann VITOLIGNO 200-S Technical Manual

Installation accessories

Safety equipment block

2
8 0
2 3
For connecting directly to the boiler, use pipe union G 1½ x R 1.

Thermally activated safety valve

Part no. 7143 845
For connection to the safety heat exchanger of the boiler.

Water level limiter

Only required in attic heating centres and in public buildings in Ger-
many.

Buffer cylinder connection unit

Part no. 7159 406
For incorporating the heating water buffer cylinder into the heating cir-
cuit upstream of the Divicon.

Diverter valve connection unit

■ Connection R 1
Part no. 7159 407
■ Connection R 1¼ (with 2 reducers R 2)
Part no. 7159 408
For flow changeover in conjunction with oil/gas boilers
VITOLIGNO 200-S
(cont.)
Part no. Z001 849
with
■ Safety assembly with safety valve (3 bar)
■ Thermal insulation
■ Tee G 1 and pipe nipple connector R 1
According to the requirements of EN 303-5 the boiler is equipped with
a safety heat exchanger. To ensure emergency cooling of the boiler in
the event of a fault, this must be connected to the water supply on site
via a thermally activated safety valve.
Part no. 9529 050
■ Used as low water indicator
■ For installation in the heating flow outside the boiler
■ TÜV-HWB 97-232
Comprising:
■ 2 tees with union nuts
■ Gaskets
5
VIESMANN
61