Operation with open flue combustion equipment
Never operate the Vitocal 160-A with extract system together with
open flue combustion equipment (e.g. open fireplaces).
Doors to boiler rooms where the combustion air supply is not inter-
connected with the living space must be airtight and must be kept
shut.
If a Vitocal 160-A is operated together with an open flue heat source
such as the Vitopend or Vitodens, provide an on site fan interlock. This
must switch the fan off as soon as the heat source starts.
Standard ventilation for standard operation
The air flow rate
´
L
for basic ventilation of an apartment or utility unit
will be determined by its size, use and occupancy rate. This requires
detailed floor plans and a sectional view of the building, both with
dimensions.
The following applies:
´
L
= n · V
W
´
L
= 0.5 · h
-1
· V
W
Whereby:
´
L
=
Air flow rate [m
3
/h]
n
=
Air change rate [h
-1
]
V
W
=
Air volume in m
3
, which should be ventilated.
In apartments this includes the heated volume, minus that
of hallways.
For apartments, observe DIN 1946-6. The air flow rates specified by
this standard are listed in the following table.
Air flow rates in the following table are shown subject to the size of the
accommodation and its occupancy rate, without considering window-
less rooms (kitchen, bathroom, WC) in accordance with DIN 1946-6.
Intended
occupancy
rate
Accommoda-
tion size
Basic ventila-
tion
Total ventila-
tion
[occu-
pants]
[m
2
]
[m
3
/h]
[m
3
/h]
up to 2
< 50
60
60
up to 4
< 80
90
120
up to 6
> 80
120
180
Check the calculated air flow rates in the extract air area according to
DIN 1946-6.
Apply the minimum air change rate to DIN 1946, if the calculated basic
ventilation results in a smaller value for the room concerned (see the
following table).
Room
Air change rates for
operational duration >
12 h
Air change rates for any
operational duration
[m
3
/h]
[m
3
/h]
Kitchen
40 (200
*4
)
60 (200
*4
)
Kitchenette
40
60
Bathroom
(also with
WC)
40
60
WC
20
30
Note
The Vitocal 160-A enables a max. flow rate of 250 m
3
/h with
a pressure of 95 Pa. The flow rate for ventilation mode must be adjus-
ted to the volume of the building and the required air change rate.
We recommend not setting the flow rate below 150 m
3
/h (60% of max.
fan speed).
Extract/expelled air pipework (accessory)
Ventilation elements
Positioning within the room
■ To avoid draughts never position ventilation elements directly next
to seating and sleeping areas.
■ To preheat the outside air during the colder times of the year install
ventilation elements in an area where air convects from radiators.
Sizing
■ Size ventilation elements according to DIN 1946.
Vitovent 300 technical guide
Extract valves
The extract valves can be adjusted to different flow rates up to a stated
max. value (see page 13). The total flow rate of all the extract valves
used must result in 250 m
3
/h.
Extract and expelled air lines
■ Never allow air < 2 °C to enter the extract/expelled air pipework.
■ The connection of cooker hoods to the extract air pipework is not
permitted.
*4
Intermittent ventilation
Design information
(cont.)
24
VIESMANN
VITOCAL 160-A
6
5822 485 GB
Summary of Contents for VITOCAL 160-A
Page 38: ...38 VIESMANN VITOCAL 160 A...
