HRU 1500/2500/3500 User Manual 3
SAFETY REQUIREMENTS
• All user’s manual requirements as well as the provisions of all the applicable local and
national construction, electrical, and technical norms and standards must be observed
when installing and operating the unit.
• Disconnect the unit from the power supply prior to any connection, servicing, maintenance,
and repair operations.
• Only qualied electricians with a work permit for electrical units up to 1000 V are allowed
for installation and maintenance. The present user’s manual should be carefully read
before beginning works.
• Check the unit for any visible damage of the impeller, the casing, and the grille before
starting installation. The casing internals must be free of any foreign objects that can
damage the impeller blades.
• While mounting the unit, avoid compression of the casing! Deformation of the casing may
result in motor jam and excessive noise.
• Misuse of the unit and any unauthorised modications are not allowed.
• Do not expose the device to adverse atmospheric agents (rain, sun, etc.).
• Transported air must not contain any dust or other solid impurities, sticky substances,
or brous materials.
• Do not use the unit in a hazardous or explosive environment containing spirits, gasoline,
insecticides, etc.
• Do not close or block the intake or extract vents in order to ensure the efcient air ow.
• Do not sit on the unit and do not put objects on it.
• The information in this user’s manual was correct at the time of the document’s
preparation.
• The Company reserves the right to modify the technical characteristics, design, or
conguration of its products at any time in order to incorporate the latest technological
developments.
• Never touch the unit with wet or damp hands.
• Never touch the unit when barefoot.
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent,
or similarly qualied persons in order to avoid a safety hazard.
• Ensure that the appliance is switched off from the supply mains before removing
the guard.
• Precautions must be taken to avoid the back-ow of gases into the room from the open
ue of gas or other fuel-burning appliances.
