Operator's Reponsibilities - Daikin EWAT_B Series Installation, Maintenance And Operation Manual

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OPERATOR'S REPONSIBILITIES

It is essential that the operator is appropriately trained and becomes familiar with the system before operating the unit. In
addition to reading this manual, the operator must study the microprocessor operating manual and the wiring diagram in
order to understand start-up sequence, operation, shutdown sequence and operation of all the safety devices.
During the unit initial start-up phase, a technician authorized by the manufacturer is available to answer any questions and
to give instructions as to the correct operating procedures.
The operator must keep a record of operating data for every installed unit. Another registration must also be kept for all
the periodic maintenance and assistance activities.
If the operator notes abnormal or unusual operating conditions, he is advised to consult the technical service authorized
by the manufacturer.
If the unit is switched off, the compressor heating resistors cannot be used. Once the unit is
reconnected to the mains, leave the compressor heating resistors charged for at least 12 hours before
restarting the unit.
Failure to observe this rule may cause damage to the compressors due to excessive accumulation
of liquid inside them.
This unit represents a substantial investment and deserves the attention and care to keep this equipment in good working
order.
However, during operation and maintenance it is essential to observe the following instructions:
- do not allow unauthorized and / or unqualified personnel to access the unit;
- It is forbidden to access the electrical components without having opened the unit main switch and switched off
the power supply;
- It is forbidden to access the electrical components without using an insulating platform. Do not access the
electrical components if water and/or moisture are present;
- Verify that all operations on the refrigerant circuit and on the components under pressure are carried out
exclusively by qualified personnel;
- The replacement of the compressors must be carried out exclusively by qualified personnel;
- Sharp edges and the surface of the condenser section could cause injury. Avoid direct contact and use
adequate protection device;
- Do not introduce solid objects into the water pipes while the unit is connected to the system;
- It is absolutely forbidden to remove all protections of moving parts.
In case of sudden stop of the unit, follow the instructions on the Control Panel Operating Manual which is part of the on-
board documentation delivered to the end user.
It is strongly recommended to perform installation and maintenance with other people.
In case of accidental injury or unease, it is necessary to:
- keep calm;
- press the alarm button if present in the installation site;
- contact immediately emergency rescue personnel of the building or the Health Emergency Service;
- wait for the operators to arrive without leaving the injured person alone;;
- give all necessary information to the rescue operators.
Avoid installing the chiller in areas that could be dangerous during maintenance operations, such as
platforms without parapets or railings or areas not complying with the clearance requirements around
the chiller.
D-EIMAC01706-18EN- 20/32