Important Safety; Power Sources; Outdoor Antenna Grounding - McIntosh MX130 Owner's Manual

IMPORTANT
SAFETY
INSTRUCTIONS
THESE
INSTRUCTIONS
ARE TO PROTECT
YOU AND THE
MclNTOSH
INSTRUMENT.
BE SURE TO
FAMILIARIZE
YOURSELF
WITH THEM
Copyright 1993 © by
Mclntosh Laboratory Inc.
1. Read all instructions - Read the safety and operating instructions before operating the instrument.
2. Retain Instructions - Retain the safety and operating instructions for future reference.
3. Heed warnings - Adhere to warnings and operating instructions.
4. Follow Instructions - Follow all operating and use instructions.
WARNING: TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS IN-
STRUMENT TO RAIN OR MOISTURE.
5. Power Sources - Connect the power supply only to the type described in the operating instructions
or as marked on the unit.
6. Power-Cord Protection - Route power-supply cords so that they are not likely to be walked on or
pinched by items placed upon or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from the instrument.
7. Ventilation - Locate the instrument for proper ventilation. For example, the instrument should not
be placed on a bed, sofa, rug, or similar surface that may block ventilation openings; or, placed
in a built-in installation, such as a bookcase or cabinet, that may impede the flow of air through
the ventilation openings.
8. Heat - Locate the instrument away from heat sources such as radiators, heat registers, stoves, or
other appliance (including amplifiers) that produce heat.
9. Wall or Cabinet Mounting - Mount the instrument in a wall or cabinet only as described in the owner's
manual.
10. Water and Moisture - Do not use the instrument near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.
11. Cleaning - Clean the instrument by dusting with a dry cloth. Clean the panel with a cloth moistened
with a window cleaner.
12. Object and Liquid Entry - Do not permit objects to fall and liquids to spill into the instrument through
enclosure openings.
13. Power Lines - Locate any outdoor antenna away from power lines.
14. Outdoor Antenna Grounding - If an outdoor
antenna is connected to the antenna ter-
minal, be sure the antenna system is
grounded to provide some protection against
voltage surges and built up static charge.
In the U.S.A., section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1978,
provides information on the proper ground
for the mast and supporting structure,
ground for the lead-in wire to an antenna
discharge unit, and size of ground conduc-
tors, location of antenna-discharge unit, con-
necton to grounding electrodes, and re-
quirements for the grounding electrode.
For ground wire:
a) Use No. 10 AWG (5.3mm
2
AWG (8.4 mm ) aluminum, No. 17 AWG (1.0 mm
wire.
b) Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 4 feet
(1.2 meters) to 6 feet (1.83 meters) apart.
c) Mount antenna discharge unit as closely as possible to where lead-in enters house.
d) Use jumper wire not smaller than No. 6AWG (13.3 mm
grounding electrode is used.
15. Nonuse Periods - Unplug the power cord from the AC power outlet when left unused for a long period
of time.
16. Damage Requiring Service - Service must be performed by qualified service personnel when:
A. The power supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the instrument; or
C. The instrument has been exposed to rain; or
D. The instrument does not appear to operate normally or exhibits a marked change in performance;
or
E. The instrument has been dropped, or the enclosure damaged.
17. Servicing - Do not attempt to service beyond that described in the operating instructions. All other
service should be referred to qualified service personnel.
2
2
) copper No. 8
2
) copper-clad steel, bronze wire, or larger as ground
2
) copper or equivalent when separate antenna
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION810 20)
GROUNDING
CONDUCTORS
(NEC SECTION 810 21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 240 PART H)