Control
22
Menus
Integral (DM) is a program to set the startup time and distance between compressor and electrical
heater according to heat demand and heat output, to set stop conditions of compressor and electrical
heater. This program is depends on the "feed water temperature degeneratiaon" and Time. To enter this
menu operator can change the factory setting:
Menu Text
Description
Adjustable by
OFF
When the value (testing) reaches the value setting by
user, the system will be closed.
USER
CMP.A
When the value (testing) reaches the value setting by
user, the compressor will be start-up. And the value
(testing) under the value (setting), the compressor will
be closed.
USER
ADD1
When the value (testing) reaches the value setting by
user, the ADD 1 will be start-up. And the value (testing)
under the value (setting), the ADD1 will be closed.
USER
ADD2
When the value (testing) reaches the value setting by
USER
ADD3
When the value (testing) reaches the value setting by
USER
user, the ADD2will be start-up. And the value (testing)
under the value (setting), the ADD2 will be closed.
user, the ADD 3 will be start-up. And the value (testing)
under the value (setting), the ADD3 will be closed.
Degree Minute s(DM) instruction
Degree Minute = The corresponding value of temperature difference between the Feed water
and the Desired water X Running time
( through
integral
to change; every minute for a cumulative)
For example:
(Under desired temperature)
Feed water temperature decrease 1
ć
(under desired temperature) in 1 minutes,
Degree Minute=-10 X 1= -10;
Feed water temperature continue decrease 2
ć
(under desired temperature) in another 1 minutes,
Degree Minute=-10 X 1 + (-10) = -20;
Feed water temperature continue decrease 3
ć
(under desired temperature) in another 1 minutes,
Degree Minute=-10 X 1 + (-20) = -30;
Feed water temperature continue decrease 4
ć
(under desired temperature) in another 1 minutes,
Degree Minute=-10 X 1 + (-30) = -40;
……………………
Temperature difference between the feed water
and the desired water
(
ć
)
The corresponding value
-31
~
-40
-40
-21
~
-30
-30
-11
~ -20
-20
-1
~
-10
-10
1
~
10
10
11
~
20
20
21
~ 30
30
31
~ 40
40
*
