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Oct. 18, 1991 

 

TYPE 99A-DF 

 

INSTALLATION & OPERATIONS MANUAL 

 

MANUAL #115 

 

Attachments A-4381 & A-4220 

 

INSTALLATION 
1. 

Disconnect power to any circuit(s) which you will be wiring to, or you may come in contact with. 

 
2. 

Install the electrical enclosure to the wall by drilling through the 4 marked holes in the back. 

 
3. 

Wire the input power, clock circuit and optional illumination circuit to the terminal strip, per attached Drawing A-4381, 
following your local and national electric codes. 

 
4. 

Set the tower & system clocks to 12:00 noon. 

 
5. 

Energize the clock system. 

NOTE:  The clock control will be set to the proper local time and the system clock counter 
set to 12:00 noon by the factory.  If not follow set:TIME & set:HANDS below. 

 
6. 

LED display should read the correct time & date; if not, see how to set:TIME below. 

 
7. 

Tower and system clocks should be advancing or stopped, or reading the correct time; if not, see how to set:HANDS below. 

 
OPERATION 
Unlock the control by pressing "*" & "1" at the same time.  The display will then read "-unlock-" momentarily.  After you have 
finished using the control, lock it by pressing "*" & "1" again, the display will then read "locked" momentarily. 
 
Page through functions by pressing "*" key.  Access funtion by pressing "#". 
 
 
FUNCTION 

 

set:TIME 

Enter the current time in the form HH:MM using the keypad, use "#" to alternate between "AM" and "PM", 
press "*" when done.  

Note: when "*" is pressed, the clock second counter is reset to zero, i.e. 11:59:00. 

 
set:DATE 

Enter the current date in the form MM/DD/YY. Then select the day using the "#" to scroll through the display, 
press "*" when done. 

Note: it is important the day of the week is set properly for the daylight/standard 
time feature to work properly. 

 
set:MODE 

Allows you to select if you wish seconds to be displayed on the LED display. Use the "#" to alternate between 
show min & show sec.  Press "*" when complete. 

 
set:EVENT 

Allows programmable "ON" & "OFF" times of the optional illumination circuit. Enter the time you desire the 
illumination to turn on, and the time you wish the illumination to turn off, following the steps for set:TIME 
above.  

NOTE:  This feature may be disabled or enabled, press "#" to alternate and "*" when complete. 

 
man:EVENT 

Allow manual control of the event circuit. Press "#" to alternate between "event on" & "event off", press "*" 
when complete. 

 
adv:CLK  

Allows manual advancing of the tower clocks. When selected advances the tower clocks, press "*" when complete. 

Note: The internal tower clock counter is not updated when this feature is selected. 
Therefore set:HANDS must be always be done afterwards. 

 
stop:CLK  

Allows manual stop of the tower clocks. When selected stops the tower clocks, press "*" when complete (be sure 

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