Wiring Requirements - No. 00501-211 Key Switch Operation; Wiring Requirements - No. 00601-506 Key Switch Operation - Porter CENTER-STRUT Assembly, Installation & Maintenance Instructions

WIRING REQUIREMENTS – KEY SWITCH OPERATION
12. CHECK HEIGHT ADJUSTMENT OPERATION – In order to test operation of height adjuster, use a temporary hook-up, or test
after unit has been hard-wired to the key switch per the diagram below. Operate unit down to the 8'-0" goal height, then back up
to 10'-0".
NOTE – All wiring between the height adjuster and the key switch is to be done by an electrical contractor per the diagram below, to
meet all local code requirements.
IMPORTANT NOTE - PERFORMANCE OF MOTOR IS BASED ON HAVING 115 VOLTS AT MOTOR TERMINALS.
VOLTAGES LESS THAN 115 VOLTS WILL AFFECT HOISTING CAPACITY AND RESULT IN DAMAGE TO MOTOR, THUS
VOIDING WARRANTY. SUBSTITUTION OF THIS KEY SWITCH WILL VOID ALL WARRANTIES AND WILL RENDER THE
OPERATION OF HEIGHT ADJUSTER UNSAFE.
CAUTION
KEY SWITCH MUST
BE MOUNTED ON THE
WALL IN A LOCATION
SO THAT THE
EQUIPMENT IT IS
CONTROLLING IS IN
FULL VIEW OF THE
OPERATOR.
ELECTRICAL CONTRACTOR TO PROVIDE
FIELD WIRING AS REQUIRED TO MEET ALL
LOCAL ELECTRICAL CODES.
MOMENTARY KEY SWITCH FURNISHED WITH TWO KEYS
(UP AND DOWN) TO PREVENT THE POSSIBILITY OF
INSTANTANEOUS REVERSING OF THE MOTOR, WHICH
COULD RESULT IN OVERRIDING THE LIMIT SWITCHES, OR
PLACING UNDUE STRESS ON HOIST SYSTEM. DO NOT
SEPARATE KEYS FROM EACH OTHER.
13. Give the UP and DOWN keys and this instruction booklet to the customer. Demonstrate the operation of the unit. Make the
customer aware of the Cautions, the Warnings, and the Maintenance requirements listed on Page 16 and 17.
HEIGHT ADJUSTER FRAME
NOTE
TO JUNCTION BOX ON
TOP VIEW
OF
KEY SWITCH
INDIVIDUAL KEY SWITCH MOUNTED IN A STANDARD 4
SQUARE FLUSH-MOUNTED STAINLESS STEEL COVER PLATE
FOR MOUNTING IN A 4" SQUARE x 3
(THEPITT No. 691 OR EQUAL) BY ELECTRICALCONTRACTOR.
KEY SWITCHES MAY BE GANGED IN PAIRS IN ONE COVER
PLATE - ONE FOR THE BACKSTOP, ONE FOR THE HEIGHT
ADJUSTER. SEE TABLE BELOW FOR WALL BOX SIZE
REQUIREMENTS - DIMENSION "A".
KEY
SWITCH
QTY.
1
2
12
MINIMUM WIRE SIZE
90' MAXIMUM RUN
90' to 140' RUN
OVER 140'
ELECTRICIAN NOTE - IF HEIGHT
ADJUSTER OPERATION DOES
NOT CORRESPOND TO UP AND
DOWN LABEL ON KEY SWITCH,
REVERSE BLACK AND RED
WIRES.
1
" DEEP MASONRY BOX
2
"A" THEPITT
BOX BOX No.
(OR EQUAL)
WIDTH
3
3 " 691
4
3
7 " 693
8
GREEN/GROUND
WHITE
115 VOLT,
SINGLE PHASE
60 HERTZ
POWER SOURCE
HOT LINE
- 12 GA.
- 10 GA.
- 8 GA.
1
"
2