Daikin EWAD TZ-B Operation Manual

Also see for EWAD TZ: Installation, operation and maintenance Installation, operation and maintenance manual

Contents

Daikin EWAD TZ-B Operation Manual Manual pdf 7 page image

Air and Water cooled inverter chillers and heat pumpEWAD TZ - EWAD TZ B - EWWD VZAir and Water cooled inverter chillersand heat pumpD-EOMZC00105-17ENOperation Manual7/841 SAFETY CONSIDERATIONS1.1 GeneralInstallation, start-up and servicing of equipment can be hazardous if certain factors particular to the installationare not considered: operating pressures, presence of electrical components and voltages and the installationsite (elevated plinths and built-up up structures). Only properly qualified installation engineers and highlyqualified installers and technicians, fully trained for the product, are authorized to install and start-up theequipment safely.During all servicing operations, all instructions and recommendations, which appear in the installation andservice instructions for the product, as well as on tags and labels fixed to the equipment and components andaccompanying parts supplied separately, must be read, understood and followed.Apply all standard safety codes and practices.Wear safety glasses and gloves.Use the proper tools to move heavy objects. Move units carefully and set them down gently.1.2 Avoid electrocutionOnly personnel qualified in accordance with IEC (International Electrotechnical Commission)recommendations may be permitted access to electrical components. It is particularly recommended that allsources of electricity to the unit be shut off before any work is begun. Shut off main power supply at the maincircuit breaker or isolator.IMPORTANT: This equipment uses and emits electromagnetic signals. Tests have shown that theequipment conforms to all applicable codes with respect to electromagnetic compatibility.RISK OF ELECTROCUTION: Even when the main circuit breaker or isolator is switched off, certain circuits maystill be energized, since they may be connected to a separate power source.RISK OF BURNS: Electrical currents cause components to get hot either temporarily or permanently. Handlepower cable, electrical cables and conduits, terminal box covers and motor frames with great care.ATTENTION: In accordance with the operating conditions the fans can be cleaned periodically. A fan can start atany time, even if the unit has been shut down.1.3 Safety DevicesEach unit is equipped with safety devices of three different kinds:1.3.1 General safety devicesSafeties of this level of severity will shut down all the circuits and stop the entire unit. When a general safetydevice will occur a manual intervention on the unit will be required in order to re-establish the normal operabilityof the machine. There are exceptions to this general rule in case of alarms linked to temporary abnormalconditions. Emergency StopA push button is placed on a door of the unit electrical panel. The button is highlighted by a red color in yellowbackground. A manual pressure of the emergency stop button stops all loads from rotating, thus preventingany accident which may occur. An alarm is also generated by the Unit Controller. Releasing the emergencystop button enables the unit, which may be restarted only after the alarm has been cleared on the controller.