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Installation - Haier DW-86L578S Operation Manual

Ultra low temperature freezer

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Cleaning and Maintenance
Cleaning Freezer Parts
To prevent electric shock or injury to operators, the AC power supply to the
freezer must be disconnected completely before any repair and maintenance
work is to be performed.
During any repair maintenance work, do not inhale medical particles or
aerosols near the equipment as they might be harmful to your health.
Cleaning the freezer
Clean the unit once a month.This can help the exterior look new.
Use a dry cloth to wipe away loose dust inside and outside of the freezer. If the unit is rather dirty,
use a clean doth soaked with a neutral detergent to clean the unit. Then use a dry cloth to wipe
away any residual detergent solution.
Never pour water onto or into the unit. Doing so can damage the electric insulation and cause
failure.
Compressors and other mechanical parts are hermetically sealed. They do not need lubrication.
The users can easily remove the frost or ice on the chamber and clean the condensaor filter as
often as necessary.
Cleaning the condenser filter
Clean the condensor filter when the control panel shows an signal for "Hot Condensor" and the
alarm flashes. Even if the light is not on, the condensor filter should be checked regularly according
to the suggestion from the distributor.
To clean the filter, follow the procedure below.
1. Pull off the front grill cover.
2. Pull out the filter screen.
3. Use water to wash the filter screen.
4. After the filter screen is dry, reinstall it back
in its original position and close the cover.
5. If the "Hot Condenser" light is on before
cleaning, check the light to make sure that it
shuts off after cleaning. If it does not shut off,
please contact after-sales service personnel.
20

Installation

Installation environment
Ambient temperature: 1 0℃ to 32℃.The ideal temperature is 1 8℃ to 25℃. If necessary, use an
air-conditioning system to achieve the required ambient condition.
Environment humidity: less than 80%RH. At an environment of 32℃. humidity should be less
than 57% RH.
The intended location should be low in dust count.
The intended location should be vibration and shock free.
The highest elevation the unit can work safely: 2.000 m above sea level.
Input voltage: within Rated Voltage ±10 % .
Installation site
For the equipment to achieve optimal operating conditions, an intended installation location should
satisfy the following requirements.
Do not install the unit in a confined place. The doorway should be large enough for the unit to
freely enter or exit the room if necessary. This is to allow the unit to be repaired easily and timely
to avoid damage to property
The location for installation should be flat and firm.
There should be good ventilation and no direct sunlight.
The freezer unit cannot share the same power socket with other equipment. The power plug
should be securely connected with the power socket
The power cord for the freezer should not be twisted or pinched.
If the power cord needs to be extended. the cross-section of the extended cable must be no less
than 2 mm² and no longer than 3 m.
Before using the freezer, check the voltage supply. A voltage stabilizer to deliver rated
voltage ±10% is recommended for areas where the voltage is known to be unstable. The voltage
stabilizer should be rated at least 4000W.
The freezer must be securely grounded
If the power socket is connected with a ground terminal, make sure to inspect it for proper
connection before using the equipment.
air-inlet grille
If the socket is not grounded, it must be connected to a grounded terminal by a qualified technician.
An ULT freezer is usually sensitive to its operating environment. If a unit is not
installed in the conditions mentioned above, it cannot operate reliably. Please
improve the environmental conditions before using the equipment.
It is prohibited to use the unit in an outdoor place. After the unit is rained on,
there is a danger of electric shock.
Do not ground the freezer through gas lines, water mains, telephone lines and
lightning rods as this may lead to electric shock.
After installation, the power plug must be easy to reach. In case of emergency,
it is easy to unplug. Nothing should block the ventilation port of the freezer.
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