Quick Set Mode
(Continued)
Symbol
Description
Used In
Default Range
User
Setting
r
2
Set Ratio 2
Sets compensator ratio 2.
This ratio is used between the
Changeover point (Co) and
the flow high limit setting.
The value set is divided by 10
to get the actual ratio.
E.g. 30 is the equivalent to a
ratio of 3:1.
Quick Set
Mode
30
(3:1)
0 to 255
Co
Set Change Over Value
Used to set the outside
temperature at which the
CSC changes from using
ratio 1 to ratio 2.
Quick Set
Mode
5
0 to 255
°
C
Sv
1
Set Flow Origin
Sets the Flow temperature
required when the outside air
temperature is at 20
°
C.
Quick Set
Mode
20
0 to 255
°
C
6.3.1. Economy Mode (CSC 5352 only)
The economy mode is used to override the plant in the event of a high outside
temperature. This temperature can be set by the user. Therefore in warm conditions
the plant will shut down. If the outside temperature falls below the economy set
value within 1 hour of the end of occupancy time the controller will remain in
economy mode.
1.
Make sure that you are in Fine Tune mode.
2.
Use the and buttons to obtain the
economy symbol, then press
the
"enter" button
.
3.
Use the
or
buttons
to set the temperature required. Set the value very
high to disable this function.
4.
When the outside temperature exceeds the economy set value, the economy
feature becomes active, and in this case the display pointer will point at .
6.4. ENTERING AND EXITING THE FINE TUNE MODE
1.
Press and hold the
button
and then the
button
, keeping both buttons
pressed down until “SEC” appears on the display. This means that the security
mode has been accessed .
2,
Press the
‘tuning’ button
three times. The display will show “CARD 1” and
all the arrows will flash simultaneously on the screen to show that the Fine Tune
Mode is being entered. Place the overlay card on the display. The overlay card
has a different set of symbols for the arrows to point to. Press the
‘enter’
button
.
CSC USER GUIDE
October, 03
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