Intermatic 158ET11893 User Manual
®
ET8000 SERIES
Electronic Astronomic 7-Day
Time Switches
With Battery Carryover
OWNER/INSTALLER INSTRUCTION MANUAL
ATTENTION: READ CAREFULLY BEFORE ATTEMPTING TO INSTALL YOUR INTERMATIC TIME
SWITCH. FAILURE TO COMPLY WITH INSTRUCTIONS COULD RESULT IN PERSONAL INJURY
AND/OR PROPERTY DAMAGE! RETAIN FOR FUTURE REFERENCE.
Specifications
TIME SWITCH INPUT VOLTAGE:
120/208/240/277 V.A.C., 50/60 Hz.
POWER CONSUMPTION: 6.0 Watts Max.
CONTACT CONFIGURATION: SPST model ET8015C, DPST
model ET8215C, and SPDT model ET8115C
SWITCH RATINGS: ET8015C & ET8215C (Per Pole)
• 30 A Inductive/Resistive, 24/120/208/240/277 VAC, 60 Hz.
• 20 A Ballast 120-277 VAC 60 Hz.
• 20 A Resistive - 28 V DC
• 5 ATungsten 120/240 VAC 60 Hz.
• 1 H.P. 120 VAC 60 Hz.
• 2 H.P. 240 VAC 60 Hz.
SWITCH RATINGS: ET8115C (NO/NC) normally closed contact
• 20A/ 10A Inductive/Resistive, 120/208/240/277 VAC, 60 Hz.
• 20A/ 10A Resistive - 28 VDC
• 6A/ 3A Ballast 120-277 VAC 60 Hz.
• 1 H.P./ 1/4 H.P. 120 VAC 60 Hz.
• 2 H.P./ 1/2 H.P. 240 VAC 60 Hz.
• 5A/ 3A, 120/240 VAC Tungsten
SET POINTS (EVENTS): 56 total (14 ON & 14 OFF plus 14
Astro ON & 14 Astro OFF). These set points can be
programmed for any or all 7 days to provide for up to 224 set
points each week.
BATTERY POWERED CLOCK OPERATION: 2 Years minimum
(Two AAA industrial grade alkaline supplied with time switch)
MIN. “ON” or “OFF” TIME: 1 minute.
MAX. “ON” or “OFF” TIME: 6 days 23 hours 59 minutes.
SHIPPING WEIGHT:2.5 Lbs. (1.1 Kg)
CASE: NEMA 1 drawn steel; 7-3/4” (19.7 cm) high, 5” (12.7 cm)
wide, 3” (7.6 cm) deep; gray finish w/lockable spring hasp.
KNOCKOUTS: Combination 1/2 - 3/4” (one on back and each
side, two on bottom).
WIRE SIZE: AWG #10 through #18.
General Safety Information
WARNING: Disconnect all power before installing or servicing
this time switch or its connected loads.
1. Follow all local electrical and safety codes, National Electric
Code (NEC), as well as Occupational Safety and Health
(OSHA).
2. If the power disconnect point is out of sight, lock it in the “OFF”
position and tag it to prevent unexpected application of power.
3. This time switch case must be grounded.
4. Do not exceed the maximum current carrying capacity of this
time switch.
5. Always replace the plastic insulator covering the terminal
before turning power “ON”.
Act
Description
he Intermatic Electronic Astronomic 7-Day Time Switch automatically
T
witches loads according to a preset weekly schedule with up-to-the-
s
inute accuracy. The astronomic feature provides sunset On and sunrise
m
Off settings to eliminate the need for separate photo control devices. The
independent 7-day programming provides complete flexibility for
applications where load switching differs each day of the week. Astronomic
programming can be combined with independent programs to provide a
sunset On and time Off program.
or use as a on/off timer in applications requiring 7-day astronomic load
F
ontrol such as lighting, heating, air conditioning systems, pumps, etc. Up
c
o 56 (14 ON & 14 OFF plus 14 Astro ON & 14 Astro OFF) set points
t
(EVENTS) can be preset. These set points can be programmed for any or
all 7 days to provide for up to 224 set points each week. The program can
be overridden by pushing the ON/OFF load override button(s).This time
switch is designed to directly switch tungsten or ballast loads up to the time
switch rating and inductive or resistive loads up to 30 amps at 120, 208,
240, or 277 volts.
Installation
WARNING: DISCONNECT THE POWER TO THE TIME SWITCH AND
THE LOADS BEFORE INSTALLING THIS TIME SWITCH.
1. Remove the mechanism from the case by depressing the catch at the
top of the case and pulling out. (See Figure #1) The timer is shipped set
for 120VAC operation by means of a selector switch. To operate timer at
208, 240 or 277 VAC, move the selector switch to the appropriate setting,
as marked on the circuit board (See Figure #2). The timer is shipped with
Daylight Savings Time (DST) enabled. To disable this feature insert a
jumper at location marked DST. The ET8215C timer is shipped with the
loads set to be independently controlled (IND), the outputs can be
changed to simultaneous or pulsed operation by moving the jumper to SIM
or PUL respectively. (See Figure #3 and wiring diagrams.)
FIgure 1
CAUTION: DO NOT TOUCH THE CIRCUIT BOARD COMPONENTS
SINCE STATIC DISCHARGE COULD DAMAGE THE MICROPROCESSOR.
2. Mount the time switch in the desired location using the three mounting
holes that are provided. Mount the time switch at eye level, if possible,
providing sufficient room to the left of the enclosure for the cover to swing
open fully. (See Figure #4)
3. Replace the mechanism in the case.
4. Lift the left side of the insulator off of the retaining post and pivot it up
and away to expose the terminal strip.
5. Strip the supply and load wires by removing 1/2 inch of insulation. DO
NOT USE
under the proper terminal plates and tighten the screws firmly. Use AWG
#10 through #18. Connect ground wire to grounding terminal at bottom of
case.
6. Replace the plastic insulator.
7. Be sure that the batteries are functioning properly. This can be checked
by making sure the display is visible. If the display has scrambled
information, press the [RESET] switch. Note that the batteries can easily
be replaced without removing the time switch mechanism or field wiring.
Simply press in and downward (in the direction of the arrows) on the
battery cover. It is recommended that the batteries be replaced with
“AAA” industrial grade alkaline cells at two to three year intervals as part
of the normal time switch maintenance observing battery polarity markings
when installing. No other maintenance is required.
ALUMINUM WIRE. (See W
iring Diagrams). Insert the wire ends
two
FIgure 2
8. Apply power to the time switch.
9. While pressing and holding the [ENTER] button press the [RESET]
button. The display will now be flashing 12:00 A.M. and MON and is in the
Manual mode. The time switch is now ready for programming.
FIgure 3
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