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Intermatic ET171C User Manual

Download Owner/installer instruction manual of Intermatic ET171C Switch for Free or View it Online on All-Guides.com. This version of Intermatic ET171C Manual compatible with such list of devices, as: ET171C, ET173C, ET174C, ET175C

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Trouble Shooting

SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION

Time switch has no display. Battery not properly installed or Check battery and replace if necessary.

defective.

Display shows scrambled or Time switch has not been reset. Press the recessed reset switch and hold for

erratic times. approximately 5 seconds.

Electrical noise is interfering with the Electrical noise interference is highly unlikely

operation of the microprocessor. since the electronic circuitry and the power

supply are completely isolated. The installation

of surge suppressors (metal oxide varistors-

MOVS) across terminals 3/4 (model ET173C

and ET174C across terminals 3/4 & 5/6) will help

to reduce electrical noise generated at the

switching contacts.

Display shows “L-bA”. Display means “Low Battery”. Replace battery within 30 days.

Display shows “Err 1” message.Slide switch not fully in its detent Reposition slide switch into detent or “wiggle” until

position (open circuit). display is corrected. If display does not correct,

contact or return to factory for service.

Display shows “Err 2” message. Slide switch shorted circuit.

Display shows “Err 3” message. Slide switch illegal position.

Load does not switch at- PROGRAM/MANUAL/AUTO selector Be sure MANUAL./AUTO is in the AUTO

programmed time. not in AUTO position. position.

Time switch is programmed incorrectly. Check program - place the Program Selector in

the PROGRAM mode and press the Enter button

to review all twenty.

Power has not been supplied to the Be sure power is applied to the line terminals #3

load. Note that the Neutral and Line (#3 and #5 for ET173C and ET174C) in order to

terminals #1 & 2 (Line 1 and Line 2 power the load. Note that the output contacts are

are terminals for model ET174C) are isolated from the timer power (terminals 1

isolated from the output terminals. and 2). This allows the timer to switch various

loads from 24 volts through 277 volts.

LIMITED ONE YEAR WARRANTY

If within one (1) year from date of purchase, this product fails due to a defect in material or workmanship, Intermatic Incorporated will repair or replace, at its sole option,

the unit free of charge. This warranty applies only to the original purchaser and is not transferable.

The warranty does not apply to: (a) damage caused by accident, abuse, mishandling, dropping, acts of God, or any negligent use; (b) units which have been subject to

unauthorized repair, opened, taken apart, or otherwise modified; (c) units not used in accordance with directions; (d) damages exceeding the cost of the product. Some

states do not allow a limitation of damages, so the foregoing limitation may not apply to you.

This warranty gives you specific legal rights and you may have other rights that vary from state to state.

INTERMATIC INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THIS WARRANTY IS IN LIEU OF ALL OTHER

EXPRESS OR IMPLIED WARRANTIES. ALL IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY AND THE WARRANTY OF FITNESS

FOR A PARTICULAR PURPOSE, ARE HEREBY MODIFIED TO EXIST ONLY AS CONTAINED IN THIS LIMITED WARRANTY, AND SHALL BE OF THE SAME

DURATION AS THE WARRANTY PERIOD STATED ABOVE.

This warranty service is available by either (a) returning the product to the dealer from whom the unit was purchased, or (b) mailing postage prepaid to the nearest

authorized service center listed. Please be sure to wrap the product securely when mailing to avoid shipping damage. This warranty is made by: Intermatic

Incorporated,/After Sales Service/ 7777 Winn Rd., Spring Grove, IL 60081-9698/815-675-7000 http://www.intermatic.com

INTERMATIC INCORPORATED

SPRING GROVE, ILLINOIS 60081-9698

158ET10371

A total of 20 set points are provided allowing up to 140 operations

each week (20 set points X 7 days = 140 operations ). Repeat this

procedure for as many of the 20 set points as required. Attempts

to enter additional set points (beyond 20) will cause “F:UL” to

appear in the display.

TO OVERRIDE PROGRAM: Program can be overridden at any

time by selecting the MANUAL position. Program set points will be

maintained but will not operate the controlled load(s)

automatically.

TO REVIEW PROGRAM SET POINTS: Place the three position

selector in the PROGRAM mode. Place the two position selector

in OUTPUT mode. The display will show all zeros if there are no

set points programmed or will show the first programmed set

point and a programmed time with an ON or OFF depending on

whether the time which appears is an ON set point or an OFF set

point. Pressing the ENTER button will advance the display to the

next set point in chronological order. In other words, the next set

point on Sunday or the set point on Monday (day 2) will appear.

Pressing the ENTER button after the last set point has been

displayed will cause ‘E:nd” to appear in the display. Further

operation of the ENTER button will repeat the review cycle.

TO ADD OR DELETE SET POINTS: Press the HOUR and/or

MINUTE buttons to change the time displayed to show the new

time you wish to add, then press the ENTER pushbutton. To

remove a programmed time, press the ON/OFF button two

times. when this is done, the set point displayed will be removed

and the display will show all dashes.

To Operate Timer

After programming is complete, move the selector switches to

the CLK and AUTO positions. The time switch will follow the

scheduled program but will not immediately “catch up” to the

presently programmed load condition; the time switch will “catch

up” at the next scheduled ON or OFF setpoint. If necessary,

press the ON/OFF button to turn the load on or off.

®

ET170 SERIES

INCLUDING MODELS:

ET171C (SPST) 120V Supply

ET173C (DPST) 120V Supply

ET174C (DPST) 240V Supply

ET175C (SPDT) 120V Supply

Electronic 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

CLOCK VOLTAGE: 120 V.A.C., 60 Hz. (ET171, ET173C, &

ET175C)

240 V.A.C., 60 Hz. (ET174C)

POWER CONSUMPTION: 3.0 Watts Max. (ET171C &ET175C)

5.0 Watts Max. (ET173C & ET174C)

CONTACT CONFIGURATION: SPST model ET171C

DPST model ET173C & ET174C & SPDT model ET175C

SWITCH RATING: (Per Pole for ET173C & ET174C)

• 30 Amps Inductive/Resistive, 24/120/240 V.A.C., 60 Hz.

• 20 Amps Resistive - 28 V.D.C.,

•1 H.P. 120 V.A.C., 60 Hz.

•2 H.P. 240 V.A.C., 60 Hz.

•5 Amps Tungsten, 120/240 V.A.C., 60 Hz.

• 20 Amps Ballast 277 V.A.C., 60 Hz.

SWITCH RATINGS: ET175C

N.O. N.C. CONTACT

20 AMP 10 AMP Resistive and 28 VDC.

General Purpose 120-240 VAC

1 H.P. 1/4 H.P. MOTOR 120 V.A.C.

2 H.P. 1/2 H.P. MOTOR 240 V.A.C.

5 Amp - TUNGSTEN 120-240 V.A.C.

20 Amp 3 Amp BALLAST 120-277 V.A.C.

SET POINTS (EVENTS): 20 total (10 ON/10 OFF or any

combination) daily.

Up to 140 (70 ON/70 OFF or any combination) weekly.

BATTERY POWERED CLOCK OPERATION: 3 Years minimum

(AA 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: 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 Act (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”.

Description

The Intermatic Electronic 7-Day Time Switch automatically

switches loads according to a preset weekly schedule with to-the-

minute accuracy. This time switch is designed to directly switch

inductive or resistive loads up to 30 amps at 24, 120 or 240 volts

and to switch tungsten or ballast loads up to the time switch rating.

For use as a control timer in applications requiring 7-day load

control such as lighting, heating, air conditioning systems, pumps,

etcetera. Up to 20 (10 ON/10 OFF or any combination) set points

(EVENTS) can be preset. These set points can be programmed for

any or all 7 days to provide for up to 140 set points each week.

Independent 7 day programming provides complete flexibility for

applications where load switching differs each day of the week.

The program can be overridden by selecting the MANUAL position.

AM ON

5:20