Bosch CFB 840, Инструкции по обслуживанию

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General specification data | 17
6 720 802 836 (2012/05) CFB 840
8.1 Minimum outside temperature
The minimum outdoor temperature is an average value of the lowest
outdoor temperatures of the past years and defines together with the
design temperature the end point of the heating curve.
Fig. 19 Heating curve adjustment: Adjustment of gradient via design
temperature and minimum outside temperature
[T
minA
] Minimum outside temperature
[T
A
] Design temperature (flow temperature that should be achieved
at min. outside temperature)
[1] Adjustment: Design temperature 75 °C, minimum outside
temperature –10 °C (standard curve)
[2] Adjustment: Design temperature 75 °C, minimum outside
temperature –20 °C
B
Call up the service level.
GENERAL PARAM. appears as the first main menu.
B
Press Display to call up a submenu.
B
Turn the rotary dial until submenu Min outdoor temp is displayed.
Fig. 20 Minimum outside temperature
B
Hold down button Display and turn the rotary dial until the required
value is shown.
The display shows the set value.
B
Release Display to save your input.
B
Press Back to return to the next higher level.
The minimum outside temperature for your region
(average value) is stated in tab. 12. If your particular
region is not shown in the table, set an average value
between the two cities closest to you or take the value
from the heat demand calculation for your building.
[ °C ]
[ °C ]
1 2
6 720 803 703-21.1T
T
minA
T
A
GENERAL PARAM.
Min outdoor temp
-10 C
o
6 720 802 836-20.1TL
Input range Factory setting
Min outdoor temp -30 °C – 0 °C -10 °C
Table 11 Setting range Minimum outside temperature
Town Minimum outside temperature in °C
Athens –2
Berlin –15
Brussels –10
Budapest –12
Bucharest –20
Frankfurt/M –14
Hamburg –12
Helsinki –24
Istanbul –4
Copenhagen –13
Lisbon 0
London –1
Madrid –4
Marseilles –6
Moscow –30
Munich –16
Naples –2
Nice 0
Paris –10
Prague –16
Rome –1
Sevastopol –12
Stockholm –19
Valencia –1
Vienna –15
Zurich –16
Table 12 Minimum outside temperature in Europe