HP Designjet 10000s HP Designjet 8000s, 9000s, and 10000s Air Purifier System - Page 8

III 5 Warnings for maintenance The APS must be switched off for maintenance, and be secured against being switched on again unexpectedly, by: • the APS must be switched off at the ON/OFF switch and then • the power plug must be removed from the wall power socket. Do not put your hand in the cover grid of the fan during fitting, assembly or service work. - After switching off /shutdown of the APS wait until the fan stops. To avoid electric shocks do not open any electrical parts and casing and covers. It is recommended to use protective gloves (disposable gloves made of polyethylene, latex or Nitrile®) before carrying out the filters replacement and/or the suction hoses. Replace filter elements at the stated intervals. Always tightly rescrew screw connections loosened. Do not use any aggressive agents or cleaning agents which contain solvents. Use lint-free cleaning cloths. Only use mild water-based cleaning agents. Do not use any organic solvents, as there is a risk of fire and explosion! Ensure safe and environmentally-friendly disposal of materials and supplies. III 6 Protective equipment The APS is equipped with safety interlocks to protect the user and is constructed and produced in accordance with state-of-the-art- technology to meet operational safety regulations. In order to ensure safe and environmentally-responsible operation, the following safety features have been installed: - The fan is secured by a protective plate or grid, which may only be removed using tools. - All elements of the control systems will move into a safe status for operators, APS and the environment in the case of power cut or reported disturbances. An unexpected restart is not possible after this. - All electrical parts carry the CE mark for low voltage and/or EMV. - A potential compensation (Ø > 1.5 mm²) of all conducting components is installed to ground the APS. - The APS is designed according to protective type IP 20. 8 User´s Guide