Onicon System-10 BTU Manual do Utilizador descarregar pdf (Página 15)

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System-10 BTU Meter Manual 03/15 - 0651-16 / 18323 Page 15

3.3 ELECTRICAL INSTALLATION

3.3.1 Input Power

All user supplied conduit ttings, junction boxes, etc. are to be installed at this time as

required by legal codes. Note that input power can be 24 VAC, 120 VAC or 240 VAC.

(Not user selectable)

OPERATING FROM 120 or 240 VAC MAINS POWER

Utilize an electrically clean power line, free of electrical noise and protected from high

voltage spikes, power surges, and brownouts. The power source should be a separate line

with its own circuit breaker or circuit protection device. Refer to Section 1.3 of this

manual for the appropriate over current device ratings. Use a three-wire service in which

one wire is a protective earth ground.

WARNING

Conduit openings in the System-10 enclosure must be closed with UL listed ttings applicable to

NEMA 13 enclosures.

WARNING

The protective earth connection must be made as shown. Failure to do so will result in an

increased risk of injury.

WARNING

All mains voltage connections must be made through pre-drilled conduit/strain relief opening

located at the bottom of the enclosure. Failure to do so will result in an increased risk of injury.

CAUTION

This product must be connected to earth ground for proper operation. Failure to do so may result

in erratic operation.

IMPORTANT NOTE

This option is not eld selectable. Contact ONICON if you need to change the input voltage rating.

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