Viessmann VITODENS 242-F Technical Manual page 30

Installation accessories
Permissible medium tem-
perature
Max. head
Max. pump rate
Alarm contact
Service accessories for automatic hydronic balancing
See pricelist.
CO limiter
For Vitodens 222-F
Part no. ZK02193
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)
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5 8
Specification
Rated voltage
Alarm threshold
Signal
Protection class
IP rating
Permissible ambient tem-
perature
For Vitodens 333-F
Part no. Z015500
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
– Mode, fault and alarm indicators
– Acoustic alarm system
■ Communication cable for interface (2.5 m).
■ Interface inside the casing with power cable (1.2 m) and connect-
ing lead for burner shutdown relay (1.2 m)
■ Fixing materials
VIESMANN
30
(cont.)
+65 °C
50 kPa
500 l/h
Changeover contact (floating), breaking
capacity 250 V/4 A
24 V from the control unit
55 ppm CO to EN 50291-1
PWM signal, evaluated by the control
unit
II
IP 20 to EN 60529
0 °C to 40 °C
7 2
5 8
Specification
Rated voltage 230 V~
Rated frequency 50 Hz
Power consumption 2 W
Rated breaking capacity 8 A 230 V~
of the relay output
Alarm threshold 55 ppm CO to EN 50291-1
Protection class II
IP rating IP 20 to EN 60529; ensure through de-
sign/installation.
Permissible ambient tem- 0 °C to 40 °C
perature
Boiler plinth
Part no. 7352259
■ For siting the appliance on unfinished floors
■ Height adjustable, for screed heights from 10 to 18 cm
■ With spacer for installation on finished walls, for downward con-
nection
Transport aid
Part no. 7425341
To facilitate transportation of storage combi boilers
Small softening system for heating water
For filling heating circuits
See Vitoset pricelist.
Plate heat exchanger flushing system
Part no. 7373005
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VITODENS