SAFETY INSTRUCTIONS (CONTINUED)

15.OVERLOADING

Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock.

16.OBJECT AND LIQUID ENTRY

Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short out parts that could result in fire or electric shock. Never spill or spray any type of liquid on the product.

17.OUTDOOR ANTENNA GROUNDING

If an outside antenna is connect-

 

 

 

 

 

 

 

 

ed to the product, be sure the

 

 

 

 

 

 

 

ANTENNA

 

 

 

 

 

 

 

antenna system is grounded so

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEAD IN

as to provide some protection

 

 

 

 

 

 

 

WIRE

 

 

 

 

 

 

 

 

against voltage surges and built-

GROUND

 

 

up static charges. Section 810 of

CLAMP

 

 

 

 

 

 

 

 

 

 

the National Electric Code,

 

 

 

 

 

 

 

ANTENNA

ANSI/NFPA 70, provides informa-

 

 

 

 

 

 

 

DISCHARGE UNIT

 

 

 

 

 

 

 

(NEC SECTION 810-20)

 

 

 

 

 

 

tion with respect to proper

 

 

 

 

 

 

 

 

grounding of the mast and sup-

ELECTRIC

 

 

 

 

 

GROUNDING CONDUCTORS

porting structure, grounding of the

SERVICE

 

 

 

 

 

EQUIPMENT

 

 

 

 

 

(NEC SECTION 810-21)

 

 

 

 

lead-in wire to an antenna dis-

 

 

 

 

 

 

GROUND CLAMPS

 

 

 

 

 

 

POWER SERVICE GROUNDING

charge product, size of grounding

 

 

 

 

 

 

NEC - NATIONAL ELECTRICAL CODE

ELECTRODE SYSTEM

conductors, location of antenna

(NEC ART 250, PART H)

S2898A

 

 

 

 

 

discharge product, connection to

EXAMPLE OF ANTENNA GROUNDING AS PER

grounding electrodes and require-

NATIONAL ELECTRICAL CODE

ments for grounding electrodes.

 

18.SERVICING

Do not attempt to service this product yourself as opening or removing covers may expose you to danger- ous voltage or other hazards. Refer all servicing to qualified service personnel.

19.REPLACEMENT PARTS

When replacement parts are required, be sure the service technician uses replacement parts specified by the manufacturer or those that have the same characteristics as the original part. Unauthorized substitu- tions may result in fire, electric shock or other hazards.

20.SAFETY CHECK

Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition.

21.WALL OR CEILING MOUNTING

The product should be mounted to a wall or ceiling only as recommended by the manufacturer.

22.DAMAGE REQUIRING SERVICE

Unplug the product from the wall outlet and refer servicing to qualified service personnel under the follow- ing conditions:

a.When the power-supply cord or plug is damaged.

b.If liquid has been spilled or objects have fallen into the product.

c.If the product has been exposed to rain or water.

d.If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions, as an adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation.

e.If the product has been dropped or the cabinet has been damaged.

f.When the product exhibits a distinct change in performance–this indicates a need for service.

23.HEAT

The product should be situated away from heat sources such as radiators, heat registers, stoves or other products (including amplifiers) that produce heat.

24.NOTE TO CATV SYSTEM INSTALLER

This reminder is provided to call the CATV system installer's attention to Article 820-40 of the NEC that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be con- nected to the grounding system of the building, as close to the point of cable entry as practical.

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Curtis CR4975 owner manual Wall or Ceiling Mounting