6
7. 115 VAC ELECTRICAL WIRING
1.
WARNING - SHOCK HAZARD
To prevent the possibility of severe personal
injury or equipment damage due to electrical
shock, always be sure the electrical power is
disconnected or off before beginning
installation.
2.
High Voltage Wiring Specifications
A)
U.L. approval requires the power supply to
be copper conductors only with minimum
#12 AWG.
B)
To prevent voltage drops greater than
10% during starting loads, adhere to the
following guideline:
For lengths greater than 50', use #10 AWG.
3.
For circuit protection, adhere to the following
guidelines:
Time Delay Fuse - Maximum 20 AMP
Circuit Breakers –
(H.A.C.R. Type) - Maximum 20 AMP
(C.S.A.) - Maximum 20 AMP
4.
High Voltage Routing Specifications
When routing the high voltage supply wiring,, the
following guidelines must be followed:
A.
Route all wiring per applicable local and
national electrical codes.
B.
The high voltage wiring must be routed
through the outer cabinet of the wiring box.
The opening is a 7/8" diameter opening.
C.
Wiring must be secured at the “power wire
entry” by a U.L. listed “Rain Tight” or
equivalent electrical conduit fitting. The
fitting must be supplied by the installer or
vehicle manufacturer.
DANGER
WHEN USING NON-METALLIC SHEATH
SUPPLY CABLES (ROMEX, ETC.), STRIP
SHEATH BACK TO EXPOSE 4-6 INCHES
OF THE SUPPLY LEADS. STRIP THE
INDIVIDUAL WIRE LEAD ENDS FOR
WIRE CONNECTION (ABOUT 3/4" BARE
WIRE). INSERT THE SUPPLY WIRES
INTO THE ELECTRICAL CONNECTOR
CLAMP. SHEATH MUST PROTRUDE
PAST CLAMP BUSHING INSIDE THE
BOX. MAKE SURE SHEATH CABLE IS
CENTERED IN CLAMP BEFORE
TIGHTENING IT. DO NOT OVER-
TIGHTEN!! THIS COULD RESULT IN
PINCHING THROUGH THE PLASTIC
WIRE INSULATION AND CAUSE
SHORTING OR “HOT” WIRES TO
GROUND (SHOCK HAZARD). THE
CLAMP IS INTENDED FOR STRAIN
RELIEF OF THE WIRES, SLIGHT
PRESSURE IS USUALLY SUFFICIENT
TO ACCOMPLISH THIS.
IF OTHER THAN NON-METALLIC
CABLES ARE USED FOR SUPPLY
CONDUCTORS, APPROPRIATE
STRAIN RELIEF CONNECTORS OR
CLAMPS SHOULD BE USED.
IN NO CASE SHOULD CLAMPING
OR PINCHING ACTION BE APPLIED
TO THE INDIVIDUAL SUPPLY LEADS
(NEUTRAL AND “HOT” WIRES).
D.
The installer must form a drip loop in the
high voltage wiring routed between the
“Rain Tight” electrical fitting and the high
voltage terminal board wiring lugs. Do not
allow excess wiring to contact electrical
terminals, sharp screw ends or edging that
can cut or damage the wiring insulation.
E.
After connecting the ground wire to the
grounding lug, verify that the ground wire
(which in some instances will be bare
copper) cannot come into contact with any
high voltage terminal.
