Siemens RVA63.242 - 5 Description of OEM Settings; Heat Generating Equipment; Minimum Limitation of Boiler Temperature (Tkmin ); Maximum Limitation of Boiler Temperature (Tkmax)

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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Description of OEM settings 26.03.2001
5 Description of OEM settings
Heat generating equipment
5.1 Minimum limitation of boiler temperature
(TKmin
OEM
)
Factory-set limitation.
Setting range Unit Factory setting
8... Tkmin °C 40
Tkmin Minimum limitation of boiler temperature (setting on line 81)
The setting will ensure low limitation of the boiler temperature’s minimum limitation set
on line 81.
5.2 Maximum limitation of boiler temperature
(TKmax)
No damage to the boiler resulting from condensation.
The boiler temperature limitations are protective functions for the boiler.
Setting range Unit Factory setting
TKmin...120 °C 80
Tkmin Minimum limitation of boiler temperature (setting on line 81)
The setting will change the boiler temperature’s maximum limitation.
If the boiler temperature reaches the level set here, the burner will be switched off.
20 10 0 -10 -20
40
30
60
50
80
70
TK
TK
TK
TK
SDK
2371Z26
TA
°C
°C
w
min
max
gem
0
Legend
TK Boiler temperature
TKw Boiler temperature setpoint
Tkmin Minimum limitation of boiler
temperature
SDK Switching differential
TAgem Composite outside temperature
Benefit
Setting
Effect
Benefit
Description
Setting
Effect