Open the window “c. Thermal regulation”.
+
!
Service menu 2/7
Thermoreg. Gfc16
Service menu 2/7
Thermoreg. Gfc16
Primary circuit
Primary cir.antifreeze
°
C
Primary cir.antifreeze
alarm diff.: 3.0
°
C
alarm setp.:
4
.0
Set the frost protection alarm value.
+
!
Service menu 2/7
Thermoreg. Gfc16
Service menu 2/7
Thermoreg. Gfc16
Primary circuit
Primary cir.antifreeze
°
C
Primary cir.antifreeze
°
C
alarm setp.: -15.0
alarm diff.:
3
.0
Set the value for the alarm difference. If the differ-
ence is exceeded, the alarm is reset.
+
!
Service menu 2/7
Thermoreg. Gfc16
Service menu 2/7
Thermoreg. Gfc16
Primary circuit
Primary cir.antifreeze
°
C
Primary cir.antifreeze
°
C-
alarm setp.: -15.0
alarm diff.: 4.0
This completes the configuration.
Diaphragm expansion vessel (MAG)
To avoid pressure fluctuations during standstill
because of temperature changes, diaphragm
expansion vessels filled with nitrogen (moisture
neutral) must be integrated in the system.
The unit's standard equipment includes one dia-
phragm expansion vessel. The preliminary pres-
sure must be set on the system; an increase in
volume or, in the event of the realisation of a
cooling-heating system, the installation of another
diaphragm expansion vessel may be necessary.
Compensators
Compensators are used to connect lines to the unit
to prevent vibration in the chiller from transmitting
to other system components.
2
1
4
3
1: Static fastening
2: Shut-off valve
3: Compensator
4: Connection KWE
Safety valves
Safety valves limit excess operating pressure due
to excess warming or overfilling of the operating
medium. The valve outlet requires unobstructed
draining into a drain line. Applicable local disposal
ordinances must be observed if glycol is used. The
unit's standard equipment includes one safety
valve.
Shut-off valves
As a rule, in cold water systems, shut-off valves
with full admission should be used. For the pur-
pose of servicing, medium inlet and medium outlet
must be equipped with shut-off valves (if necessary
safety valves).
Air bleeding valves
The unit has manual air bleeding valves. The unit
can be bled separately after the system has been
filled. Automatic bleeding valves must also be
installed at the highest point in the collector line.
NOTICE!
Glycol tolerant air bleeding valves are neces-
sary when using media that contain glycol.
43
