ESIE07-05
The Digital Controller
Part 2 – Functional Description
2–19
3
2
4
5
1
1.4.7
Display and Keypad
Introduction
The display and the keypad are the main elements of interface between operator and unit. All the
operational conditions, the alarms and the setpoints can be monitored with this display and all the
values of setpoint can be modified through the keypad.
The keypad MicroTech II is constituted by 15 keys of access to the operational conditions of the unit
and to the functions of program. The information requested are shown on the backlight Display 4 lines
for 20 characters
Control panel
Keypad keys and
their functions
By the user password it is possible to set the following parameters:
■
Setpoint limits
■
Setpoints reset values
■
Enable double setpoint
■
Regulation parameters
■
Startup and shutdown values
■
Soft load values
■
Hot chilled water start values
■
Ambient lockout values
■
Unit limiting
■
Fan silent mode values
■
Main pump timing
■
Digital and supervisor inputs enabling
■
Time scheduling
Y
B
ESIE07-05.book Page 19 Friday, December 21, 2007 3:21 PM
