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VWR Signature Products_______________________________________________________________________Alarms
4.1 Alarms
The Model 5600 Series freezer alarm system is shown in the table below. When an alarm is active, the message appears in the
LED message center. Press the Mute key to disable the audible alarm for the ringback period. The visual alarm will continue until
the freezer returns to a normal condition. The alarms are momentary alarms only. When an alarm condition occurs and then returns
to normal, the freezer automatically clears the alarm condition and the message center.
Description
No alarm condition exists
Power Failure
High Temperature Alarm
Low Temperature Alarm
Door Ajar
Low Battery*
Control Probe Failure - see 4.2
Heat Exchanger Probe Failure - see 4.2
Condenser Probe - see 4.2
Sample Probe Failure (optional) see 4.2
High Stage System Failure
Condenser Hot Condition
Wrong Power
Filter Needs Cleaning
Gasket Needs Cleaning
Voltage Compensation
Micro Board Failure
All alarm delays and ringback times are ±30 seconds.
* The automatic battery test runs 12 hours after initial start-up, then every 12 hours thereafter. A user initiated battery test can be performed from the configuration
menu. See Section 3.1.c
a. Wrong Power Alarm
If a 230 V freezer is connected to a 120 V power source or a
120 V freezer is connected to a 230 V power source, the elec-
tronics will detect that an incorrect power source has been con-
nected to the freezer. Under this condition, the fans and com-
pressors will not turn on and an audible and visual alarm will
occur along with the "WRONG POWER" message in the LED
message center.
The "WRONG POWER" alarm may also occur if the bat-
tery switch is turned on prior to applying power to the freezer.
The audible and visual alarms will remain until the freezer is
connected to the correct power source.
b. High Stage System Failure Alarm
This condition is created when the high stage compressor
and fans run for 30 minutes and are not capable of cooling the
interstage heat exchanger to the proper temperature. Under this
condition, the high stage compressor and fans will turn off after
30 minutes and an audible and visual alarm will occur along
with the "HS SYST FAIL" message in the LED message center.
Section 4 - Alarms
Message
SYSTEM OK
POWER FAIL
TEMP IS HIGH
TEMP IS LOW
DOOR IS OPEN
LOW BATTERY
PROBE 1 FAIL
PROBE 2 FAIL
PROBE 3 FAIL
PROBE 4 FAIL
HS SYST FAIL
HOT CONDENSR
WRONG POWER
CLEAN FILTER
CLEAN GASKET
VCOMPEN FAIL
MICRO FAIL
c. Voltage Compensation Alarm
If the freezer is compensating for high or low line voltage,
the system will measure the compensated AC voltage. If the
voltage is incorrect, the unit will stop attempting to compensate,
and the compressors will run on direct line voltage. Under this
condition, the message center will display "VCOMPEN FAIL".
d. Multiple Alarms
When multiple alarm conditions occur, active messages are
displayed in the message center one at a time, updating at 5 sec-
ond intervals. Pressing Mute during multiple alarms causes all
active alarms to be muted and to ring back in 15 minutes.
e. Micro Board Failure Alarm
A communications failure has occurred with the micro
board. Contact Technical Services for replacement.
4 - 1
Delay
Ringback
----
----
1 min.
15 min.
1 min.
15 min.
1 min.
15 min.
1 min.
15 min.
1 min.
12 hours
1 min.
15 min.
1 min.
15 min.
1 min.
15 min.
1 min.
15 min.
1 min.
15 min.
1 min.
none
0 min.
none
0 min.
3 months
0 min.
3 months
0 min.
15 min.
0 min.
15 min.
Relay
----
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
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