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•Load the samples back into the unit after it reaches the set temperature.
•Turn on the backup refrigeration system if there is one.
Caution
Do not use any sharp tools such as knives or screwdrivers to defrost.
4.Battery maintenance
• When the control panel shows an alarm signal for "Low Battery ", please make sure the battery
switch is turned on, and the battery will be charged. After about one week of charging, please
recheck the battery capacity. If normal, the battery should be in full capacity. However, if the
capacity is still low. please change the battery.
• The battery that supports the power outage alarm is a consumable item. The life expectancy for
the lithium battery is 5 years(Lead-acid battery is 2-3 years.). If the battery is more than 5 years
old(Lead-acid battery is 2-3 years.), the battery should be replaced because the alarm function may
not work properly. To do so, please contact an Haier Equipment and Instrument Service Center.
5.Disposal of the freezer
• If the unit is to be stored unused in an unsupervised area for an extended period,
Warning
ensure that children do not have access and that doors are locked completely with a
key.
• The disposal of the unit should be accomplished by appropriate personnel . Remove
doors to prevent accidents such as suff ocation .
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• If the freezer temperature warms up, and the issue cann't be resolved within a short time,
please transfer the stored products to another freezer to avoid potential damage..
• Before placing samles in the freezer for storage, check the freezer temperarture to make sure
the temperature meets the storage requirement for the samples. This is to prevent any potential
damage to the samples due to incorrect storage temperature.
• Due to the fact that it would take time to remove the heat from the stored product, there can
be a diff erence between the set temperature and the displayed temperature. This diff erence will
get smaller as the set point is lowered.
•Ultra low temperature freezers are designed to store samples. Therefore, they are not
suitable for heavy loading with a large amount of products at one time as the operation can
cause premature compressors over heating. Samples should be loaded in small batches.
The temperature setting should be lowered incrementally, allowing the unit and products are
stablized at each setting until the fi nal temperature is reached.
• Do not use any unauthorized mechanical tools or other means to accelerate the defrosting
process.
• Do not tamper with the refrigeration circuit.
• Do not use any non manufacturer-approved electrical components in the freezer.
Operation after a Power Outage
Haier ULT freezers' control settings are stored in their memory system. Should there be a power
outage and recovery, freezer units can resume its operation based on the previous settings.
• In the event of a power outage and recovery, be sure to wait for at least 5 minutes
Caution
before turning the unit on again to avoid damaging the compressors and refrigeration
system.
• If the unit is not in use for a long period of time, make sure the power cord is
unplugged. Deteriorated insulation of the power cord may lead to electric shock or fi re.
• If the freezer is not in use in an area without any supervision, please make sure
children will not approach the freezer and the doors should not be closed.
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