Page 1 of 18 APHITEMPCON001-11-04
APPLICATION:
This standalone micro-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 a modulating 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.
Table of Contents
Application………………………………………….1
Features…………………………………………….1
Specification………………………………………..2
Dimensions, Installation & Wiring Terminals..….3
Control Operation………………………………….4
Installer SetUp……………………………………..12
FEATURES:
•
PI (proportional plus integral) control action
provides accurate, stable and comfortable
temperature control.
•
Compatible with series 70 direct-coupled
damper / valve actuator like ML7161,
ML7174, ML7420 / ML7421series ML7425,
ML7984 series, N20010, S10010, M7410E
series, CN7505, CN7510 / CN72 series
CN7220 & CN7234 also VC79 series etc.
•
Backlit LCD to display both setting and
measured value.
•
Adjustable Zero Energy Band, On/Off
Differential, Proportional Band and
Temperature Offset.
•
Analog output can be forced manually 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 ice water.
•
Watch Dog Timer: to resume the controller
from hanging condition.
•
Brownout effect to avoid malfunctioning 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 attractive modern style
appearance.
