Daisy 4823DH, User Manual

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4823DH User Manual
D004-000010 15
Repair, Maintenance and Warnings
Unit and connections must be installed per mounting drawings (See Panel Mount Configuration ). For
supply connections, use wires suitable for at least 75°C and use Copper, Copper-Clad Aluminum, or
Aluminum Conductors.
13.1 Repairs and installation
End user is responsible for installation of power input to the unit. Repairs and installation of
this unit need to be performed by authorized personnel in accordance with the National
Electrical Code (NEC) (NFPA), European Committee for Electrotechnical Standardization
(CENELEC), Canadian Electrical Code (CEC), and any applicable local code regulations.
Contact your local Authority having jurisdiction (AHJ) for assistance in field wiring in
accordance with local code regulations. This unit incorporates static sensitive components
which need to be handled carefully; be sure to follow all ESD safety procedures. The door
assembly of this unit cannot be opened while in operation.
13.2 Maintenance
Maintenance should be performed by authorized personnel. The only maintenance is
periodic inspections for damage and proper operation. Any damaged parts or damaged
cabling entering into the unit, need to be replaced promptly to ensure that the safety
methods used, and their integrity are still valid.
The following details must be checked during maintenance:
•
Compliance with the permitted temperatures
•
Damage to the enclosure and seals
• Cables are held securely in place
• Clean unit enclosure with non-corrosive and non-combustible chemicals
•
Continuous energization of the overall equipment. Any interruptions in energization of any
length requires a visual inspection for condensation/frost on any part followed by a warm-
up period involving just the internal heaters and fans, with the electronics energized and
the heaters de-energized only after the internal temperature exceeds 25°C.
WARNING EXPLOSION HAZARD
DO NOT DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS LIVE OR UNLESS THE
AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
WARNING EXPLOSION HAZARD
DO NOT DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS LIVE OR UNLESS THE
AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
WARNING EXPLOSION HAZARD
SUBSTITUTION OF ANY COMPONENT MAY IMPAIR SUITABILITY FOR CLASS I,
DIVISION 2.