Intermatic T51311BC Supplementary Manual
MODEL: T51311BC
THREE CIRCUIT SEVEN DAY
TIMING CONTROL CENTER WITH
SPRING-WOUND CARRY-OVER MOTOR
CIRCUIT A: PHOTO CONTROL
ON-TIME SWITCH OFF
CIRCUIT B: PHOTO CONTROL
ON-PHOTO CONTROL OFF
CIRCUIT C: TIME SWITCH
ON-TIME SWITCH OFF
CONTACT RATINGS:
15 AMP., 1/2 H.P. - 125 OR 250 VOLTS A.C.
420 V.A. PILOT DUTY, 150 WATTS TUNGSTEN -120V A.C.
TO CONTROL MECHANICALLY HELD AND MAGNETIC CONTACTORS
(MAY ALSO BE USED WITH 24 VOLT SYSTEMS IF WIRED IN ACCORDANCE
WITH NATIONAL ELECTRICAL CODE REGULATIONS.)
CLOCK MOTOR AND PHOTO CONTROL: 120 VOLTS - 60 HZ.
WIRING INSTRUCTIONS
This center can be programmed to control any lighting and other loads on three circuits on a
seven day schedule with selected day(s) of the week omitted from circuits
A and C. For
terminal markings refer to diagram above. Follow national or local electrical code regulations
and complete wiring as shown. Turn selector switches (bottom front panel) to
OFF. Replace
panel before turning on electricity. Test each circuit individually.
PROGRAMMING INSTRUCTIONS
1. THE PHOTO CONTROL (INSTALLED OUTSIDE) selects the "ON" times for circuits A and
B and the "OFF" times for circuit B depending on time of season. If fine adjustment is needed
move slide on photo control to retard/advance
"ON" time. (It will also affect the "OFF" time for
circuit
B.)
2. TO SET "OFF" TIMES FOR CIRCUIT C place bright ON trippers on dial edge at day-of-
week and time-of-day when
"ON" operations are desired. They must be set at times with
in the daylight hours of winter.
NOTE: In order to reset time switch every OFF tripper on
dial must be followed by an
ON tripper if circuits A and C are used.
3. TO SET COMMON "OFF" TIMES FOR CIRCUITS A AND C place dark OFF trippers on
dial edge at times when
"OFF" operations are desired.
4. TO SKIP DAYS ON CIRCUITS A AND C omit trippers for the day(s) automatic operation(s)
is/are not required. (Circuit
B is independently controlled by the photo control.)
5. TO SET DIAL TO TIME-OF-DAY turn dial clockwise and align the exact day-of-week and
time-of-day (AM or PM) on dial with the time pointer. Some allowance may be required to
compensate for gear backlash.
CAUTION: Do not force dial counterclockwise or
move time pointer.
OPERATING INSTRUCTIONS
1. THE THREE POSITION SELECTOR SWITCHES provide manual control of the three
circuits. When turned to
ON or OFF, lights or other loads will remain ON or OFF until the
switch is manually reset. With a switch in
AUTOMATIC position, operations will follow the
preset program of the center.
2. IN CASE OF EXTENDED POWER FAILURE OR NEED TO ADVANCE/RETARD TIME
place selector switches in
OFF position. Reset time-of-day, see step 5 of programming
instructions. Then turn selector switch to
ON or AUTOMATIC.
BEFORE ANY BEHIND-THE-PANEL WORK DISCONNECT ELECTRICITY
INTERMATIC INCORPORATED
SPRING GROVE, ILLINOIS 60081-9698
158TS10995
LR3730
158TS10995 8/6/04 10:57 AM Page 1