Installation and start up
Ultra-low freezers1-Installation and start upRead instruction
manual before installation.Failure to read, understand and follow
the instruction may result in damage the unit, injury to the
operator and poor equipment performance.All internal adjustment and
maintenance must be performed by qualified service personnel.
1Follow unpacking instruction.Perform inspection procedure.Dont
move the freezer with the product inside.If tipped more than 45,
allow the unit to set upright for 24hrs before start up.Choose
location/ Firm, level, ambient temp(18-32)For proper ventilation,
allow a minimum clearance of 5 at the rear and 8 on the
side.Connect power cord and plug it with the power switch off.
Should be operated on dedicated grounded service. Check the voltage
rating.Turn the battery switch to stand by mode. The rechargeable
battery require 36 hrs to charge.
2-Control panel key Display and indicatorsTemperature displayMod
select switch/Run, set Temp, high &low alarm, calibrate,
BackupAlarm indicatorMuteAlarm panelUp and Down arrowEnter/store
value
3-Freezer componentsControl panelBUS(optional) panelTemperature
recorder(optional)Key lockRemote alarm contactsPower cord
connection BUS for probe and solenoidPower
switch(Main)FilterBattery switch and mounting bracketThermocouple
receptacle
4-Operation Set operating temperature.(range=-50 to -80) Default
setting=-80Set High temperature alarm (at least 5C from control set
point.Set Low temperature alarm (at least 5C from control set
point.Run mode(default mode for the freezer) it display the cabinet
temperature on the temperature display
5-CalibrationThe control probe calibration frequency is depend
on use, ambient temperature and accuracy required.Use type T
thermocouple reader.Temperature Stabilization period start up 12hrs
already operating 2hrs6-AlarmsPower failureHigh temperatureLow
temperatureProbe failureDoor openWrong powerLow batteryHot
condenserHigh stage failureVoltage compensationMicro board
failureLost communication7-MaintenanceClean cabinet exterior Use
soap and water and general use laboratory disinfectant. Rinse with
clean water and dry with soft cloth.Avoid excessive use of water
around control area.Clean air filterShould be cleaned a minimum of
four times per year. depending to environmental condition.Follow
the instruction to remove the filter.Wash the filter material using
water and a mild detergent. Dry by pressing b/n two towels.Replace
If torn or excessively dirty.Clean condenserMinimum of once per
year.Follow the instruction to get access to the condenserUse
vacuum cleaner, excessive care to not damage the condenser
fin.Cleaning lid gasketMinimum of once per month.Use cloth, remove
any frost and dirt.If dirt or excessive frost build-up prevents the
door from closing properly, clean more frequently.
8-Factory installed optionsBUS Operated by the internal
battery.If the power to the freezer chamber fails or temperature
increases, the BUS injects qualified gas into the chamber to keep
the chamber temperature with in the specified range.Locate the
mounting hole assembly for installing the injection tee
assembly.Follow the instruction to install the assembly.When
activated (solenoid valve) this unit injects liquid nitrogen or
carbon dioxide. These may cause serious freezing, suffocation.Chart
recorderWater- cooled condenserRequires a qualified technician at
freezer installation.Proper adjustment of regulating valve.
