Description - Tech Controllers EU-81zPID User Manual

Description

II.
Blow
C.H.
Pump
H.C.W.
Pump
Manual
Mode
The EU–81zPID temperature regulator is intended for use with central heating boilers. The regulator is
used for controlling the central heating water circulation pump, hot consumption water pump and blow
(fan).
The ST-81zPID is a PID-basedcontroller using a continuous signal. In this type of controllers,
the fan power is calculated based on boiler temperature and flue gas temperature measured at the boiler
outlet. The fan runs continuously and its power depends directly on the measured boiler temperature
and flue gas temperature as well as the difference between the two parameters and their setpoint values.
Advantages of zPID regulators include their ability to maintain a stable setpoint temperature without
unnecessary overregulations and oscillations.
By fitting the controller with a flue gas outlet sensor, you can save
percent of fuel, and ensure a steady water temperature for a longer service life of your heat exchanger
(boiler). Flue gas outlet temperature monitoring ensures reduced harmful dust and gas emissions. The
thermal energy from the flue gases is used for heating instead of being wasted and disposed of through
the funnel.
Research results presented below were obtained using the Tech PID-based controller:
4
EU-81zPID
PLUS
button
MINUS
button
Enter main
menu, confirm
Power
switch
Return from
menu, resetting
from a few up to several