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6. Installation
6.1 Symbol precautions
Symbol description
Dear user,
For the better understanding of this Manual and the proper operation of the chiller, the marks and symbols used in
this Manual are described as follows:
WARNING
CAUTION
■
Installation and maintenance must be carried out by professionals experienced in this type of unit in accordance
with applicable local codes and rules on installation and maintenance. We are not liable for any unit damage or
casualty due to non-conformance with this requirement.
■
The power supply must be switched off prior to maintenance and relocation of the unit; otherwise, personal
injury or death may be caused by electric shock. Do not touch such hot components as compressor and exhaust
pipe directly.
■
When the water system contains water, control the startup and shutdown of the water pump via the water pump
output point on the unit controller; otherwise, the anti-freezing protection of the unit will not work, causing the
freezing crack to the heat exchanger. If the unit is to idle for a long time in winter, drain the water from the water
system via the drain valve to prevent the freezing crack of the heat exchanger, the water pipe and other parts on
water side. Furthermore, the water pump shall be power off to avoid starting up against frost without water.
■
To prevent the heat exchanger on water side from being frozen due to foreign matters entered, a self-contained
water filter must be installed on the water return pipe of the unit (specific installation position is shown in water
system diagram).
■
Dregs and dirt in the water pipe network including filter and heat exchanger may seriously damage the heat
exchanger and water pipe. Installers and users must ensure the quality of chilled water, not use anti-icing
mixtures containing salt and prevent the entry of air into the water system, because the salt and air can oxidize
and corrode steel parts inside the heat exchanger.
■
When the unit is installed, it must be protected against wind and earthquakes as required. Otherwise, accidents
such as dumping or falling of the unit may occur.
■
The fixed foundation must have sufficient bearing capacity when the unit is installed. The base of the unit must
be fixed on a solid foundation to prevent the unit from sinking or causing injury due to insufficient strength.
■
Before repairing and transferring the machine, the power must be cut off, otherwise the electric shock will cause
injury and death. Do not directly touch high temperature components such as compressors and exhaust pipes.
■
The installer and the user must ensure the quality of the chilled water. It is forbidden to use the salt anti-icing
mixture and no air is allowed to enter the water system.
■
The unit is forbidden to be installed in places such as toilet exhaust, hospital operating room exhaust, sewer
treatment equipment, etc., where there is much dirt, oil, salt, and a large amount of sulfurized gas, which will
cause corrosion of the unit components.
■
It is forbidden to use refrigerant or refrigerant oil other than those specified by the model. Failure to do so may
result in damage to the unit, resulting in a fire or explosion.
■
The installation location of the equipment should ensure that the drainage system is unblocked. Improper
drainage systems may cause poor drainage and cause equipment to get wet.
■
The unit must be warmed up for two hours for the first time. This is to protect the compressor. If the preheating
time is not met, the unit may report the oil preheating and the temperature barrier.
■
The unit must be properly grounded. The grounding wire cannot be connected to the air pipe, water pipe,
lightning protection device, telephone line, and the wrong grounding method can cause a click accident.
■
Do not touch the high temperature part of the compressor and refrigerant piping. Beware of burns.
■
Prevent refrigerant leakage. Especially when the unit is installed indoors, there must be reliable measures to
prevent refrigerant leakage. In the event of a refrigerant leak, open the window in time to ventilate.
■
The power must be turned off before repairing and moving the machine, otherwise the electric shock will cause
personal injury and death. Do not directly touch high temperature components such as compressors and exhaust
pipes.
It is likely to cause death, serious injury and other severe accidents if the user fails
to do as required.
It is possible for severe accident to occur.
WARNING
11
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