Flooded Type Water Cooled Screw Chiller Technical M
anual
38
Fig. 4
The second record out of twenty historical alarm
records.
(The same below, omitted)
Fig. 5
1.2.2.3 Preferences of Unit
When this menu appeatrs, pressing
will enter password prompt picture and inputting correct
password will enter into the following pictures:
Service setting of unit 1 and unit 2: it is used to
select the start of unit 1 or unit 2. If nonuse is set,
the unit won’t start even startup conditions of this
unit are meet.
Fig. 1
1.
Temp drop rate:
it is used to set velocity and
temperature drop and judge loading and
unloading of unit;
2.
Temp gather:
it is used to set temperature
sampling cycle;
3.
Temp range:
it is used to set temperature of
water return; temperature of water return
plus control temperature of water return is
the reset temperature of unit;
4.
Alarm recording:
if the same serious failure
occurs three times within 24 hours, unit will
be locked; this item is used to unlock serious
failure;
Fig. 2
1. Setting of Alarm Time Delay
2.
when cooling water temperature diff. is
lower than set value,
system will send
alarm;
Fig. 3
1# Compressor Use/Nonuse
2# Compressor Use/Nonuse
Temp drop rate X.X
℃
Temp gather XXX Sec.
Temp range X.X
℃
Alarm recording Clear/Cancel
Temp diff max XX.X
℃
Temp diff min X.X
℃
Low pressure X.XX Mpa
High pressure X.XX Mpa
Alarm Record 2/20
Alarm information
DateXXXX/XX/XX TimeXXXX/XX/XX
