Tork DZS200 Installation & Operation Manual Download Page 1

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TORK MODEL DZS200

ASTRONOMIC CONTROLLER

Installation & Operation

INTRODUCTION

Model DZS200 is a microprocessor based time switch.
This astronomic unit is used for sunrise/sunset control
of outdoor lighting, providing two independent chan-
nels with 365 day scheduling. The unit is user settable
in 1 degree steps from 10 degrees to 60 degrees for
Northern or Southern latitudes.

In addition, the unit can be set to turn on or off from 1
to 99 minutes before or after actual sunrise or sunset
times. This compensates for longitudinal time differ-
ences and provides for more controlled lighting time
due to physical obstructions of natural light or other
special conditions.

The DZS200 may be utilized so that channel 1 pro-
vides astronomic settings for sunset to sunrise for all
night security lighting. At the same time, channel 2 can
be used for combination astronomic/straight time set-
tings.

For example, store window lighting or “open and

closed” signs may be set to come on at sunset but off
during the night when no longer needed.

A unique feature of this TORK model is its momentary
contact capabilities which can be used to set each
channel individually for a user adjustable duration of 1-99
seconds. This feature is most useful for ringing school
bells, factory buzzers, sirens, or for automatic correc-
tion of clocks. Or, both channels can be used together
providing pulse output for mechanically-held contac-
tors or low voltage latching type relays – channel one
to close and channel two to open.

Up to 16 individual holiday dates can be set for special
schedules or to omit operations entirely. Likewise, 5

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TORK

1 GROVE STREET, MT. VERNON, NY 10550 TEL: 914-664-3542

FAX: 914-664-5052

MLI-79(E)

different holiday blocks can be set in addition, with
unrestricted durations. These blocks can be used for 3
day weekends, 2 week vacation shutdowns, July-
August school closing, etc.

A 6th Block is available for user selectable date of start
and end of daylight savings time where needed.

INSTRUCTIONS FOR INSTALLING TORK

NORYL

TIME SWITCH ENCLOSURE

ENCLOSURE INSTALLATION
1. Five combination 1/2” and 3/4” knockouts are pro-

vided on this enclosure.

2. Remove the 1/2" (inner) knockout by inserting a

screwdriver in the slot provided and pound screw-
driver handle with a hammer. Remove slug with pliers
and smooth hole edges with file or knife if neces-
sary. When the 3/4” outer knockout is required, place
screwdriver in groove and pound screwdriver handle
with hammer. Remove loose slug with pliers and
smooth hole edges with file or knife if necessary.

3. When attaching conduit to enclosure, exercise care to

align and support conduit in order to prevent unneces-
sary stress on enclosure.

GROUNDING
National Electrical Code
requires that grounding
must be continuous and in
proper electrical contact in
all grounding conductors,
metallic conduits and
grounding terminals. When
metallic conduits are
installed, use approved
grounding bushings or
order KN500 (two 1/2) or
KN750 (two 3/4) grounding
bushing kit from TORK. When using metal conduits,
install the proper size approved 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 amp.