Rotex Controller Series, Продуктовая документация

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EbV Product documentation THETA NORM/UNIT
8-1
8 Hydraulic components and their functions
8.1 Heat Generator: Boiler
8.1.1 Heat Generator Start-up Protection (..2.., ..22.., ..C..)
Start-up protection prevents the deposit of condensate during heating up.
H-GEN Start-up
protection:
There are three different modes of start-up protection that can be set:
Unlimited start-up protection
When the temperature in the heat generator drops to 2 K below the set minimum
limit, all heating circuits are separated, at the water side, from the heat generator
(pumps off, mixing valves closed) to pass through the dew point as quickly as
possible. The heating circuits are enabled as soon as the temperature in the heat
generator has reached the minimum limit plus half of the burner switching differential
1.
Weather-dependent start-up protection
The heating-up characteristic is the same as for unlimited start-up protection,
meaning the heat generator remains in operation until the set minimum temperature
plus half of burner switching differential is crossed. Below the minimum temperature
the pumps remain switched off and the mixing valves closed.
Once the heat generator has been switched off, the start-up protection becomes
active again only when the boiler temperature drops below the weather-responsive
demand value (acc. to heating curve setting).
The subsequent heating-up follows the same scheme as for unlimited start-up
protection.
Separate start-up protection for H-GEN and heating circuits
This function allows separating the temperatures for switching on the burner and
switching off the heating circuit when the boiler temperature falls below the boiler
minimum temperature limit.
Operation:
Note on operation Key / parameter tree Parameter
Activation of start-up protection
HEAT GENER. PARAMETER 02