Design Information; Siting Conditions For Open Flue Operation (Appliance Type B) - Viessmann VITODENS 242-F Technical Manual

Installation accessories
■ 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
Boiler plinth
Part no. 7352 259

Design information

6.1 Positioning, installation

Siting conditions for open flue operation (appliance type B)

Type B and B
23 33
In rooms where air contamination from halogenated hydrocar-
bons may occur, such as hairdressing salons, printing shops, chemi-
cal cleaners, laboratories, etc., operate the Vitodens only as a bal-
anced flue system.
If in doubt, please contact Viessmann.
Never install the Vitodens in areas subject to very dusty conditions.
The installation location must be kept free from frost and must be ade-
quately ventilated.
Provide a condensate drain and a discharge pipe for the safety valve
in the installation room.
Max. ambient temperature of the system 35 °C.
VITODENS
(cont.)
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
■ 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 connec-
tion
Transport aid
Part no. 7425 341
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. 7373 005
For cleaning the plate heat exchanger
If these instructions are not observed, any consequential appliance
damage directly related to any of these causes is excluded from our
warranty.
a When installing in Austria, observe all current safety regulations
as defined by ÖVGW-TR Gas (G1), ÖNORM, ÖVGW, ÖVE and
locally applicable standards.
Installation room
Permissible:
■ Boiler installation on the same floor
■ Living space with interconnected room air supply
■ Adjacent rooms with interconnected room air supply (larders, base-
ments, utility rooms etc.)
6
VIESMANN
45