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II.
Description
EU–391S temperature regulator with a throttle is intended for controlling the combustion
process in a home fi replace. It controls the CH pump, additional pumps (DHW or fl oor
pump), throttle and a voltage-free output (controlling an additional device).
Functions off ered by the controller:
•
control of CH pump
•
control of additional DHW or fl oor pump (the pump type selected by the user)
•
control of throttle
•
contactor switching the gas furnace on and off , depending on the pre-set temperature
of the circulating water including hysteresis
•
zPID control
•
buff er pump
Controller equipment:
•
large, colour LCD display
•
fl ue gas temperature sensor
•
DHW temperature sensor
•
CH temperature sensor
•
throttle
•
buff er sensor top
•
buff er sensor bottom
5
EU-391 z PID
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