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Hydraulic Components SDC / DHC
142 EN2H-0221GE51 R0808
Discharge to heating circuits
Any excess heat is dissipated into the heating circuits. The set
maximum temperature is not exceeded here. The intended room
temperature may be exceeded for short periods. If the respective
circuits are equipped with room stations, the thermostat function
should be activated.
ATTENTION
For floor heating a contact thermostat must be installed to
control forced switch-off of the pumps.
Dissipation into buffer tank
Any excess heat is dissipated into the buffer tank, without
exceeding the set maximum temperature.
7.1.19 Exhaust gas temperature monitoring
Only if parameter 8 variable input 1 = 16 - Flue gas sensor set in the
"Hydraulics" menu.
A flue gas sensor can only be connected to the variable sensor
input VI 1. Due to the high temperatures involved, a PT 1000
sensor is used for this purpose. The control device automatically
evaluates the sensor data, which are different from the data
supplied by the standard sensors.
When a sensor fault is detected with the flue gas sensor active,
and if flue gas monitoring was set for temporary disable or
permanent inhibit (safety functions), there will be a heat generator
switch-off in addition to the malfunction message.
This function controls the necessary measures in case the flue
gas temperature exceeds the allowable limit.
Display of flue gas temperature only
No follow-up function; the actual flue gas temperature is displayed
in the Information display.
Heat generator lock if limit value is exceeded for set time
When the temperature limit is exceeded the heat generator is
disabled for the set time and a fault message is sent.
Heat generator lock if limit value is exceeded
NOTE
Function