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

Installation accessories
Drain outlet kit
Part no. 7459 591
Drain outlet with siphon and rose.
For connecting the drain lines of the safety valves and condensate
drain.
Condensate lifting system
Part no. 7374 796
Automatic condensate lifting system for condensate with a pH value
≥ 2.7 from oil and gas condensing boilers.
Components:
■ Condensate container 0.5 l
■ Shaftless permanent magnet ball motor pump
■ Control unit for pump operation, display of operating conditions and
fault messages
■ 2 m long power cable with plug
■ Two 7 24 mm connection apertures for condensate inlet
The standard delivery comprises:
■ 6 m long drain hose 7 14 x 2 mm
■ Non-return valve
5
A B
168
A Condensate inlet
B Condensate inlet with drain plug
C Condensate drain

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

Comprising:
■ Flue gas non-return device for each boiler
■ Flue gas header
■ End piece with condensate drain and siphon
VIESMANN
50
(cont.)
C
Specification
Rated voltage
Rated frequency
Power consumption
IP rating
Protection class
Permissible medium temperature
Max. head
Max. capacity
Zero volt contact
Service accessories for automatic hydraulic 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. 7499 330
A monitoring device that safely shuts down the boiler in the event of
carbon monoxide being released.
Wall mounting in the ceiling area near the boiler.
Can be used for boilers built from 2004 onwards.
Components:
■ Casing with integrated CO sensor, relay and displays for operation
and alarm.
■ Fixing materials.
■ Power cable (2.0 m long).
■ Connecting cable, relay for burner shutdown (2.0 m long).
7 0
Specification
Rated voltage
Rated frequency
Power consumption
Rated breaking capacity of the relay out-
put
Alarm threshold
Safety category
IP rating
Permissible ambient temperature
230 V~
50 Hz
20 W
IP 44
F
+60 °C
45 kPa
450 l/h
N/C, breaking capacity
230 VA
230 V~
50 Hz
3.5 W
8 A 230 V~
40 ppm CO
II
IP 20 to EN 60529; ensure
through design/installation
70 °C
VITODENS