Intermatic T174 T170 Series 40 Amp 24-Hour Mechanical Time Switch Instructions

MODEL: T174

24 HOUR DIAL TIME SWITCH

WITH “SKIPPER

®

”

LR3730

TYPE 1 INDOOR USE ONLY

DOUBLE POLE SINGLE THROW (DPST)

40 A RESISTIVE, PER POLE 120 - 480 VAC; 40 A INDUCTIVE,

TUNGSTEN OR 1000 VA PILOT DUTY PER POLE 120 - 277 VAC;

2 HP (24 FLA) - 120 VAC; 5 HP (28 FLA) - 240 VAC

16 A ELECTRONIC BALLAST, 277 VAC

UL

HOLOGRAM

LABEL

WARNING Risk of Fire or Electric Shock

• Disconnect power at the circuit breaker(s) or disconnect switch(es) before installing or servicing.

• Installation and/or wiring must be in accordance with national and local electrical code requirements.

• Use wires rated at least 90°C - COPPER conductors ONLY.

• Replace plastic insulator covering terminals before powering ON.

• KEEP DOOR CLOSED AT ALL TIMES when not servicing.

AVERTISSEMENT Risque d’incendie ou de choc électrique

• Utiliser des fils classés 90 °C minimum - Conducteurs en CUIVRE UNIQUEMENT.

NOTICE

• Rotate timer dial clockwise only.

• Do not move the clock hands on the timer. Moving the clock hands can damage the timer.

CLOCK MOTOR: 208-277 VAC, 60 HZ.

CLOCK MOTOR VOLTAGE AND CYCLE MUST BE AS SPECIFIED. TO ORDER

REPLACEMENT, INDICATE PART NO. (WG--) ON MOTOR COVER.

POINTER

TIME

DIAL

OFF

TRIPPER

MANUAL

LEVER

ON/CUTOUT

TRIPPER

DAY

ARROW

SKIPPER

WHEEL

SKIPPING

SCREW

WIRING DIAGRAM

240V 2 WIRE

AND GROUND

240V

SUPPLY

GR

LINE 1

LINE 2

A 1 2 3 4

GROUND

CLOCK

MOTOR

TO

LOAD(S)

277/480 VOLT CONNECT MOTOR LEADS TO TERMINALS “A”

AND 1 AND SUPPLY NEUTRAL TO TERMINAL “A”.

WIRING INSTRUCTIONS: Remove 1/2 inch of insulation from wire ends. Tighten terminal screws firmly

(2-18 in-lbs). Use solid or stranded COPPER conductors only. May use two wires of the same size and type.

MINIMUM

COPPER

WIRE SIZE

(AWG)

MAX.

LOAD

(AMP)

MIN.

INSUL-

ATION

TEMP(°C)

75°C INSULATION MAX. MOTOR

LOAD (HP)

SINGLE PHASE

120 V.

240 V.

208 V.

3 PHASE

240 V.

PRESSURE PLATE

TERMINAL SCREW

14

12

10

8

15

20

30

40

90

90

90

90

1/2

1

-

2

2

2 1/2

3

5

N/A N/A

MAKE SURE WIRE

INSULATION CLEARS

PRESSURE PLATE

PROGRAMMING INSTRUCTIONS

1.

TO SET “ON” AND “OFF” TIMES: Hold trippers against edge of CLOCK-DIAL , pointing to time (AM or PM) when ON and OFF operations are desired, tighten tripper screws firmly.

For additional tripper pairs on CLOCK-DIAL order 156T1948A.

2. Pull CLOCK-DIAL outward. Turn in either direction and align the exact time-of-day on the CLOCK-DIAL (the time now, when switch is being put into operation) to the pointer.

DO NOT MOVE POINTER.

3.

TO SKIP OPERATION(S) ON SELECTED DAY(S): Insert SKIPPING SCREW(S) in SKIPPER

WHEEL for day(s) automatic operation(s) is/are NOT required. Tighten screws firmly. Move

MANUAL LEVER to “OFF” and rotate SKIPPER WHEEL to locate correct day-of-week opposite DAY ARROW--”YESTERDAY” if ON/CUTOUT TRIPPER has not yet advanced wheel “TODAY” if it has.

OPERATING INSTRUCTIONS

• TO OPERATE SWITCH MANUALLY: Move MANUAL LEVER below CLOCK-DIAL left or right as indicated by arrows. This will not effect next operation.

CAUTION: TO AVOID SLOW SWITCH ACTION FAILURE, DO NOT OPERATE

SWITCH MANUALLY NOR PLACE A TRIPPER 4 HOURS PRIOR TO

ON/CUTOUT TRIPPER SWITCHING.

IN CASE OF POWER FAILURE, programming instructions.

reset CLOCK-DIAL to proper time-of-day. See

INTERMATIC INCORPORATED

SPRING GROVE, ILLINOIS 60081-9698

154--02068