Description - TECH EU-391 ZPID User Manual

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
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EU-391 z PID