NSI TORK DWZ200B User manual

INSTRUCTION MANUAL
FOR TECHNICAL SUPPORT:
888.500.4598
DWZ200B
DIGITAL TIME SWITCH
MLI-220 (B)

TABLE OF CONTENTS
Section Page
Capabilities and Features ........................1
Installation Instructions..........................2
Instructions for Setting the Unit....................3
1.0 To Set The Clock ...............................4
2.0 To Set Date...................................4
3.0 Daylight Saving Time ...........................4
4.0 Set Individual Holiday Dates......................5
5.0 Schedule Set Modes ............................5
5.1 Setting Hours and Minutes .......................5
5.2 Setting Days and Holiday ........................6
6.0 To Set Astronomic Schedule.......................6
6.1 Selecting Astro Days............................6
6.2 Astronomic ON and Time OFF .....................8
6.3 Time ON and Astronomic OFF .....................8
7.0 Review, Modify, Delete Schedules ..................8
8.0 Manual Override ..............................9
9.0 Clear All Memory .............................10
10.0 To Modify Standard Daylight Saving Time Dates ......11
Wiring Diagram ..............................12
Blank Schedule Sheets .........................13
Astronomic Latitude Zones.......................21

1
TORK MODELS DWZ200B
2 CHANNEL DIGITAL TIME SWITCH
READ INSTRUCTIONS CAREFULLY BEFORE
ATTEMPTING TO INSTALL TIME SWITCH. SEE
WARNING ON FRONT PANEL – Failure to comply with
instructions could result in personal injury and/or property
damage.
CAPABILITIES:
• 365 Day Advance, Single Day Holiday
• ON and OFF set points:
- Combined Total for both channels - 99 per week
- Minimum setting - 1 minute
• Capable of different schedules each day of the week.
FEATURES:
Holidays 1 to 24 individual dates.
Astronomic Schedule with independent offset for
each channel.
Daylight Saving Automatic (can be adjusted).
Leap Year Automatic compensation.
Display LCD
Manual Override Until the next regular scheduled ON or
OFF. Automatic operation then resumes.
Clock Format AM/PM or 24 Hour.
Look Back Automatically executes the last command
after power failure.
Power Outage Permanent schedule retention for up to
40 years.
Clock maintained for 7 days on super
cap. No battery needed.

2
INSTALLATION INSTRUCTIONS:
1.Remove unit from enclosure by pushing the inside tab
(located near the outside hasp) to the right. Swing unit to
left and remove.
2.Five combination 1/2” and 3/4” knockouts are provided
on this enclosure. Remove the 1/2” (inner) knockout by
inserting a screwdriver in the slot provided and pound
screwdriver handle with a hammer. Remove knock-out
with pliers and smooth hole edges with file and knife if
necessary. When the 3/4” outer knockout is required,
place screwdriver in groove and pound screwdriver
handle with hammer. Remove loose knockout with pliers
and smooth hole edges with file or knife if necessary.
Disconnect power at main panel prior to installing or
servicing this time switch or the equipment connected to
it. Connect in accordance with national and local electri-
cal codes. Installation by a licensed electrical contractor is
recommended.
3.When attaching conduit to enclosure, exercise care to
align and support conduit in order to prevent unneces-
sary stress on the enclosure.
4.Reinstall unit by reversing Step 1 above and connect
wires according to wiring diagram on inside case label.
GROUNDING
National Electrical Code requires that grounding must be
continuous and in proper electrical contact in all ground-
ing conductors, metallic conduits and grounding terminals.
When using metal conduits, install the proper size ap-
proved grounding bushings. The minimum size copper
grounding conductors must be #10 AWG if the circuit
breaker or fuse is 30 or 40 amp, #12 AWG if 20 amps,
and #14 AWG if 15 amps.
NOTE: Do not use top entry for wiring.
WE SUGGEST YOU MAKE COPIES OF THE SCHEDULE
SHEETS LOCATED IN BACK OF THIS BOOKLET AND COM-
PLETE THEM PRIOR TO SETTING THE UNIT.

3
INSTRUCTIONS FOR SETTING THE UNIT
Connect unit to main power source prior to entering the
settings. When powering up the unit for the first time, allow
1-2 minutes for supercap to charge and the display will
show 12 HOUR. Press reset button after 2 minutes if screen
is blank.
Press HOUR to change to 24 hour (military format) or press
ENTER to set 12 hour (AM/PM format).
NOTES:
1. During the RUN mode, the Hour, Minutes, Seconds, Day
of the week and flashing colons will be displayed.
2. The unit will not go into run mode unless the clock and
date are set. In any other mode, if no entries are made
for 5 minutes, the unit will automatically go to the run
mode.
3. Unit will display “PF” (Power Failure) in the absence of
AC power. A minimum of 8 hours is required to fully
charge the super cap.
4. When previously programmed unit comes back from a
power failure, it will “look back” and update the sched-
ule, executing the last scheduled event. Settings can be
manually updated by pressing the EVENT key in the run
mode.
After pressing ENTER the unit will display:
NOTE: AFTER MAKING ANY CHANGES TO THE PRO-
GRAM, PRESS MODE TO GO TO RUN MODE AND THEN
PRESS EVENT TO UPDATE THE LOAD STATUS.
SIG1 SIG2 CLK DATE SCH
Reset
Location

4
1.0 TO SET CLOCK
Press HOUR and MIN to advance to the present hour and
mins. Check AM/PM, and press ENTER.
2.0 TO SET DATE
If you are setting for the first time, display will show:
Press the MONTH, DATE, and YEAR keys to advance to the
desired month, date and year, then press ENTER. NOTE:
The day of the week will be automatically set once the date
is set.
3.0 DAYLIGHT SAVING TIME
After setting or modifying the date, the display will show:
a. For standard USA daylight saving (DST), press MODE
and go to step 4.0.
b. For dates other than standard USA dates, press MONTH
and go to section 10.0.
c. If daylight saving time (DST) is NOT required, press DEL
and the display will show:
Press ENTER then go to step 4.0.
SIG1 SIG2 CLK DATE
SCH
ON
OFF

5
4.0 SET INDIVIDUAL HOLIDAY DATES
Press MODE until display shows:
Press MONTH and DATE to set Holiday 1 and then press
ENTER. The display will show:
To delete any Holiday press DEL and press ENTER.
NOTE:
a. A total of 24 holidays can be set, all following the same
schedule.
b. For any holiday to be used, the MONTH and DATE must
be preset.
5.0 SCHEDULE SET MODE
Press MODE until display shows:
Press SELCT to select channel 1 or 2.
5.1 SETTING HOURS AND MINUTES
a. Press HOUR and MIN to set desired time.
b. Press EVENT to set desired event.
H

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5.2 SETTING DAYS AND HOLIDAY
Press SELCT to select the flashing desired days and/or holi-
day, otherwise press DAY to skip and then press ENTER. To
delete an entry, press DAY until the previously selected entry
flashes, press SELCT and then press ENTER. The display will
show:
Follow the same procedures above to set more schedule
entries for Channel 1. At the next blank screen press SELCT
to select the desired channel and proceed with the steps
above to set more schedule entries.
6.0 TO SET ASTRONOMIC SCHEDULE
Press the MODE key until display shows:
Press SELCT to select desired Channel 1 or 2. Press the LAT
key to advance to the desired degree of latitude, from 10º
to 60º north or 10º to 60º south. Press ENTER.
6.1 SELECTING ASTRO DAYS
Display will show:
Press SELCT to show time. Press SELCT again to select the
flashing desired days and/or holiday in which you want
the indicated channel to turn ON at sunset, otherwise press
DAY to skip and then press ENTER. To delete an entry, press
DAY until the previously selected entry flashes, press SELCT
and then press ENTER.
NOTE: Sunset Time will be based on Date and Latitude
entered.

7
The display will show:
If an offset to sunset time is required, press HOUR and MIN.
Offset can be set to 4 hours max. Press EVENT to select + or
-- and then press ENTER.
NOTE: A + sign will turn the load ON that many hours
and/or minutes after sunset. A -- sign will turn the load ON
that many hours and/or minutes before sunset. The display
will show:
Press SELCT and then ENTER to activate sunrise time.
NOTE: To turn load OFF at a preset OFF time, leave this
field blank. Press ENTER. The display will show:
If an offset to sunrise time is required, press HOUR and
MIN. Offset can be set to 4 hours max. Press EVENT to
select + or -- and then press ENTER.
NOTE: A + sign will turn the load OFF that many hours
and/or minutes after sunrise. A -- sign will turn the load OFF
that many hours and/or minutes before sunrise.

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6.2 ASTRONOMIC ON AND TIME OFF
Set astronomic ON per sections 6.0 and 6.1.
TIME OFF:
Press MODE until “sch01” appears. Press ENTER until a
blank schedule appears then press SELCT to select channel
1 or 2. Press HOUR and MIN to set desired OFF time. Press
SELCT to select desired days, holiday and/or seasons and
then press ENTER.
6.3 TIME ON AND ASTRONOMIC OFF
Press MODE until “sch01” appears. Press ENTER until a
blank schedule appears then press SELCT to select channel
1 or 2. Press HOUR, MIN and EVENT to set desired ON
time. Press SELCT to select desired days, holiday and/or
seasons and then press ENTER.
ASTRO OFF:
Set astronomic OFF per sections 6.0 and 6.1.
7.0 REVIEW, MODIFY AND DELETE SCHEDULES
Press MODE to advance to any of the following MODES:
1. CLOCK MODE: Press HOUR and MIN to modify existing
settings. Press ENTER.
2. DATE MODE: Press MONTH, DATE and YEAR to modify
existing settings. Press ENTER. DAY is automatically
adjusted.
3. DST Daylight Saving Time: To review press ENTER. To
modify press MONTH, DATE and DAY to change existing
settings. Press ENTER.
4. HOLIDAY MODE: Press ENTER to advance to desired
holiday. Press MONTH and DATE to modify, and DEL to
delete. Press ENTER.
5. SCHEDULE MODE: Press ENTER to advance to desired
schedule. Press HOUR, MIN, EVENT to modify schedule,
and DEL to delete. Press ENTER after each modification.
6. ASTRO MODE: Press SELCT to select the desired channel.
Press LAT to change latitude. Press ENTER. Press DAY and
SELCT to add or delete days in the sunset mode. Press
ENTER. Press HOUR and/or MIN to change offset time for
sunset. Press EVENT to change offset from + to --. Press
ENTER and follow the same procedure above to modify
or review sunrise settings.
7. RUN MODE: Time, day and seconds are displayed. If
today is a programmed holiday, an H (Holiday) will be
displayed steady.

9
8.0 MANUAL OVERRIDE
NOTE: UNIT WILL GO INTO RUN MODE AUTOMATICALLY
IF NO KEY IS PRESSED FOR 5 MINUTES. FOR MORE IN-
FORMATION ON THE RUN MODE, SEE THE NOTES SEC-
TION ON PAGE 3.
OVR1 and OVR2 (override keys) are effective only in the
run mode. If a channel is scheduled for ON/OFF, then the
channel will change the present load status until the next
scheduled event. CH# will flash when the load is overrid-
den from a scheduled event.
EVENT (in the RUN mode) key is used to update the load sta-
tus. It will execute the last scheduled event for CH1 and CH2.
The display will only show the last scheduled event for CH1.
To view the last scheduled event for CH2, simply press the
EVENT key again. If there is no schedule programmed for a
specific channel, the display will show --:--

10
9.0 CLEAR ALL MEMORY
NOTE: UNIT WILL GO INTO RUN MODE AUTOMATICALLY
IF NO KEY IS PRESSED FOR 5 MINUTES. FOR MORE IN-
FORMATION ON THE RUN MODE, SEE THE NOTES SEC-
TION ON PAGE 3.
To clear all memory, while in the RUN mode, press ENTER,
and display will show:
Use the EVENT key to display:
Press ENTER briefly and everything in the timer memory is
wiped off including real time and date. 12HOUR will flash.
NOTE: THE UNIT HAS A LOOK BACK FEATURE. IF YOU
HAVE JUST FINISHED SETTING THE UNIT AND AN OUT-
PUT IS TO BE UPDATED, PRESS THE EVENT KEY. UNIT WILL
AUTOMATICALLY PICK UP THE LAST SCHEDULE.

11
10.0 MODIFY STANDARD DAYLIGHT SAVING TIME
DATES
Press MODE to advance to Daylight Saving Time mode. For
dates other than standard USA dates, press MONTH.
NOTE: The first two digits represent the month and the sec-
ond set of digits represents the week in the month. Choices
for the week are 01 (1st), 02 (2nd), 03 (3rd) or L (Last)
week of the month. The default day is Sunday (SU). Once the
modified date is set, the unit will automatically calculate the
correct start dates in the future.
Now press the MONTH and DATE buttons to modify the start-
ing DST settings. Pressing DAY changes the default day. EX-
AMPLE: A screen showing “04:01 SU S” represents April
(04), the first week (01), Sunday (SU), and the Start (S) of
daylight savings time.
Press ENTER to save and the display will show:
Now press the MONTH and DATE buttons to modify the end-
ing DST settings. Pressing DAY changes the default day. EX-
AMPLE: A screen showing “10: L SU E” represents October
(10), the Last week (L), Sunday (SU), and the End (E) of day-
light savings time.
Press ENTER to save and the display will show the modified
DST starting Date.

12
WIRING DIAGRAM

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