Page 1of 16 APHITEMPCON001-11-04
APPLICATION:
This standalonemicro-controller based LCD temperature
controller provides proportional plus integral (P+I) and on/off
temperature control for commercial Heating, Ventilating &Air
Conditioning System such as Hydronic Heating, Air Handling
Unit, Heat Exchanger or Condensing Tower.
This controller has amodulating analog 2 to 10Vdc or 4 to
20mA output and a 2A on/off output to realize various optional
control functions including cool/heat changeover, heat/cool
sequence control, emergency interlocking and auto-alarming
control.
TableofContents
Application………………………………………….1
Features…………………………………………….1
Specification………………………………………..2
Dimensions, Installation &Wiring Terminals..….3
Control Operation………………………………….4
Installer SetUp……………………………………..10
FEATURES:
·
PI (proportional plus integral) control action
provides accurate, stable and comfortable
temperature control.
·
Compatible with series 70 direct-coupled
damper / valve actuator likeML7161,
ML7174, N20010, S10010, M7410E,
ML7420, ML7421, ML7425, ML7984, etc.
·
Backlit LCD to display both setting and
measured value.
·
Adjustable Zero Energy Band, On/Off
Differential, Proportional Band and
TemperatureOffset.
·
Analog output can be forcedmanually to be
convenient for installation & commissioning.
·
Optional 2 to 10Vdc or 4 to 20mA direct
acting and reverse acting analog output.
·
Selectable internal and external temperature
sensor.
·
Wide temperature control range (-20 to 110
°C by using external temperature sensor) is
suitable for extreme temperature control such
as steam and icewater.
·
Watch Dog Timer: to resume the controller
from hanging condition.
·
Brownout effect to avoidmalfunctioning and
care on power ON and power OFF.
·
Pluggable terminal block allows pre-wiring
outside of the controller.
·
Compact size and slim design provide
elegant and attractivemodern style
appearance.
