Heat pump type electric water heater for industrial purposes

Maintenance and repair of heat pump type electric water heater for industrial purposes

Apparatus for scanning the retina for the security identification of persons; apparatus for use in security control; automatic access security apparatus; automatic security barriers; cards encoded with security features for authentication purposes; cards encoded with security features for identification purposes; closed circuit television security apparatus; controlled access security apparatus (closed circuit television); data security apparatus; data security instruments; domestic security installations for buildings (electric or electronic); door security devices of metal for buildings (electric); door security devices of metal for buildings (optical); electric access security apparatus; electric controlled access security apparatus; electric security apparatus for buildings; electric security apparatus for the detection of intruders in buildings; electric security apparatus for the prevention of theft from buildings; electric security locking devices for armoured doors; electric security locking devices for the doors of safes; electric security monitoring apparatus incorporating fibre optic cables; electrical apparatus for security purposes (other than for vehicles); electrical devices for security purposes (other than for vehicles); electrical devices for security purposes in vehicles; electrical security apparatus, other than for vehicles; electrical security devices, other than for vehicles; electrically operated security apparatus, other than for vehicles; electronic controlled access security apparatus; electronic security apparatus for use in homes; electronic security apparatus for use in offices; electronic security apparatus, other than for vehicles; electronic security devices, other than for vehicles; electronic security equipment, other than for vehicles; electronic security installations for use in buildings; electronic security tags; electronic tags for security control purposes; encoded cards for operating security apparatus; heat sensitive cameras for security purposes; heat sensitive devices for security purposes; installations (electric or electronic) for use in security; metal security (anti-theft) devices (electric, not for vehicles); mirrors used for security and surveillance; photocells for use with security lighting; security alarm systems (other than for vehicles); security alarms (other than for vehicles); security apparatus for computers; security apparatus for elevators; security apparatus for processing audio signals; security apparatus for processing video and/or audio signals; security apparatus for receiving audio signals; security apparatus for receiving video signals; security apparatus for storing audio signals; security apparatus for storing video signals; security apparatus for transmitting audio signals; security apparatus for transmitting video signals; security apparatus incorporating lights for use in buildings; security apparatus incorporating lights for use on the exterior of buildings; security control apparatus; security control instruments; security devices for computer hardware; security devices for computer software; security devices for doors of buildings (electric locking devices); security installations, other than for vehicles; security passes (encoded); security passes (magnetic); security surveillance apparatus; security systems for buildings; security systems for elevators; security systems, other than for vehicles; security warning apparatus; telecommunications security instruments; telephone security instruments; transmitters for use in security; value cards for security purposes (machine readable or magnetic); value cards for security purposes (magnetic); video camera security apparatus; video camera security installations; video camera security instruments; video cameras adapted for security purposes