Flue Gas Cascade (Positive Pressure) For Multi Boiler Systems With Vitodens 200-W And 222-W - Viessmann Vitodens 300-W Technical Manual

Installation accessories
Tundish kit
Part no. 7459 591
Drain outlet with trap and rose
For connecting the drain lines of the safety valves and the conden-
sate drain.
Condensate lifting system
Part no. ZK02 486
Automatic condensate lifting system for condensate with a pH value
≥ 2.5 from gas condensing boilers
Components:
■ Condensate container 2.0 l
■ Centrifugal pump
■ Non-return valve
■ Connecting cable (1.5 m long) for fault messages
■ Power cable (1.5 m long) with plug
■ 4 connection apertures 7 30 mm for condensate drain with con-
nector 7 max. 40 mm)
■ Drain hose 7 10 mm (5 m long)
1500
A Condensate drain
B 4 x condensate inlet with drain plug

Flue gas cascade (positive pressure) for multi boiler systems with Vitodens 200-W and 222-W

Comprising:
■ Back draught safety device for each boiler
■ Flue gas header
■ End piece with condensate drain and trap
VITODENS
(cont.)
A
B
204
262
279
Specification
Rated voltage 230 V~
Rated frequency 50 Hz
Power consumption 70 W
IP rating IP 20
Permissible medium tem- +65 °C
perature
Max. head 50 kPa
Max. pump rate 500 l/h
Alarm contact Changeover contact (floating), breaking
capacity 250 V/4 A
Service accessories for automatic hydronic balancing
See pricelist.
Plate heat exchanger flushing system
Part no. 7373 005
Small softening system for heating water
For filling heating circuits
See Vitoset pricelist
CO limiter
Part no. ZK02 193
Monitoring device for safety shutdown of the boiler in the event of
escaping carbon monoxide.
Wall mounting in the ceiling area near the boiler.
Components:
■ Casing with integral CO sensor, electronic signal generation and
displays for operation, faults and alarm
■ Fixing materials
■ Heat generator communication cable (2.5 m)
5 8
Specification
Rated voltage 24 V from the control unit
Alarm threshold 55 ppm CO to EN 50291-1
Signal PWM signal, evaluated by the control
unit
Protection class II
IP rating IP 20 to EN 60529
Permissible ambient tem- 0 °C to 40 °C
perature
5
VIESMANN
55