Intermatic FM/1 Series Manuel utilisateur

FM/1 Series

Time Switches

TECHNICAL DATA

Supply Voltage: Synchronous: 24, 120 and

240VAC, 60Hz

Quartz: 24V AC/DC, 120 and

240VAC 50/60 Hz

Switch Type: SPDT

Switch Rating: 21A @ 250VAC resistive

1350 watt tungsten

1HP @ 125VAC

2HP @ 240VAC

Ambient

Temp. Range: –40°F to 180°F, synchronous units

–20°F to 140°F, quartz units

Terminals: 1/4” spade terminals

Reserve Carryover:

72 hours for quartz units

Weight: Approximately 3 oz.

Agency Approvals: UL Recognized

NOTE: 24V quartz unit will operate on 6VDC, 12VDC,

or 24VDC

APPLICATIONS

The FM/1 series of time switches are designed for control

of heating, ventilating, air conditioning, refrigeration, lighting,

security, circulating pumps, spas or any electrical load requiring

24-hour or 7-day scheduling.

WIRING

Verify input voltage stated on back of unit. Use 1/4” quick

connects and make connections in accordance with the wiring

diagram shown and applicable code requirements. When using

24V units, it is important to use transformers that will supply the

required 24 volts AC to terminals 1 & 2.

MOUNTING

The standard FM/1 units can be flush mounted (mounting kit

with screws available) or surface mounted inside a panel. A

printed circuit board mounting base is also available. An indoor

or outdoor enclosure is available for stand-alone mounting. In

addition, unit is also available in DIN housing for flush or surface

mounting (see MIL72, Digi 20 or Digi 42 data sheets). Optional

clear plastic dust cover is available.

Terminal Connections

Contacts shown in “Off” position (trippers pushed inward)

“On” position (trippers pushed outward) will close contacts 3 & 4

45 3 1

INPUT

COM

TIME SETTING

TO SET THE CURRENT TIME (AND DAY OF WEEK ON

7 DAY UNITS), TURN THE MINUTE HAND CLOCKWISE.

DO NOT SET THE TIME BY ROTATING “OUTER” DIAL.

Turn the minute hand clockwise until the day of the week

(7-day timer) and the time of day on the outer dial is aligned

with the triangle marker on the inner dial (two o’clock posi-

tion).

Example for 7-day program dial Monday 10:30 AM. Turn the

minute hand clockwise until Monday 10:30 AM is aligned with

the triangle on the inner dial. The hour and minute hand will

show exactly 10:30.

Example for 24-hour program dial 10:30 AM. Turn the minute

hand clockwise until 10:30 AM is aligned with the triangle on

the inner dial. The hour and the minute dial will show exactly

10:30.

PROGRAMMING

7-Day (SW, QRW Models)

The weekly program dial reflects the seven days of the week

and AM/PM imprints for each day.

The time switch is programmed by pushing the captive trippers

to the outer ring position for the entire period that the load is to

be turned “ON”, i.e., two hours for each tripper on the 7-Day

dial. When the tripper is pushed to the inside, the switch is in

the “OFF” position.

24-Hour (ST, QRT Models)

The 24-Hour dial has quarter-hour divisions and AM/PM indi-

cations.

The time switch is programmed by pushing the captive trippers

to the outer ring position for the entire period that the load is

to be turned “ON”, i.e., fifteen minutes for each tripper on the

24-Hour dial. When the tripper is pushed to the inside, the

switch is in the “OFF” position.

PROGRAMMING WITH MANUAL

OVERRIDE SWITCH

AUTOMATIC MODE

In order to operate the time switch module in the automatic

mode, the manual switch must be in the center position (auto-

matic) - see diagram.

MANUAL MODE

With the manual switch selector lever the selected programs can

be overridden. In the lower position, marked “O”, terminals 3

and 5 are permanently closed. In the upper position, marked “I”,

terminals 3 and 4 are permanently closed (see diagram).

158--02196

Override Mode

3-way manual

override switch

I = permanent ON

= automatic

0 = permanent OFF

Dimensions

FM/1 synchronous/quartz

INTERMATIC INCORPORATED

Libertyville, IL 60048

www.intermatic.com

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