publication

TABLE NOTES

➀

M1-M2 and M3-M4 are always first switches

to turn ON and last to turn OFF. All other

switches are random ON and random OFF

➁

24A34-14 Switch contacts designated

- F

instead of M

- M

➂

24A34-28 is 2 pole double throw

♦

These contacts switch simultaneously

NOTE

: Underwriters Laboratories requires a

fan interlock circuit to insure the blower

remains operating whenever more than one

sequencer is used. The fan interlock should

be the M

/ M

contacts of the second or third

sequencer.

All M

/ M

contacts are wired to the blower

motor so that any sequencer that is energized

will keep the blower ON.

COMBINED LOAD RATING TABLE

(ALL MODELS)

30A @ 240 VAC – TOTAL,

23A Non-Inductive + 7 FLA / 42 LRA Inductive,

ON Time: Elapsed time to make contacts after

heater is energized (min. to max.)

OFF Time: Elapsed time to break contacts after

heater is de-energized (min. to max.)

24A34-3

Model

Timings

Number

Timings

Switches

ON 1-3

OFF 1-3

24A34-15

1-60

75-95

24A34-15 HEAT PUMP CONTROL

FEATURES

• Used in heat pump air handler applications.

• Provides a delay off to the blower motor in cooling mode.

• Single pole double throw.

Resistive (Non-Inductive)

Motor Ratings (Inductive)

VAC

Watts

Amps

Full Load Locked Rotor

Pilot Duty

120

3000

25.0

14.0A

72.0A

125 VA

240

6000

25.0

7.0A

42.0A

125 VA

ELECTRICAL RATINGS – NORMALLY OPEN CONTACTS 1-3

Resistive (Non-Inductive)

VAC

Watts

Amps

Pilot Duty

120

1200

10.0

125 VA

240

1200

5.0

125 VA

ELECTRICAL RATINGS – NORMALLY CLOSED CONTACTS 1-2

ELECTRIC HEAT

PRODUCTS

HEAT

SEQUENCERS

Indicates Canadian Model Number: call 1-800-305-6953 to order



24A34 SERIES ELECTRIC HEAT SEQUENCERS

Direct Replacement for Most Fan / Heat Sequencing Functions.

Terminal Markings are Equivalent to Competitive Types

FEATURES

• Replaces Honeywell, MARS, TOD,

• Any contacts (except M1 & M2) can be

GEMLINE, Klixon (Texas Instruments).

used as auxiliary contacts.

• 24V input control.

• Double quick-connect terminals for

• Multi-poise mounting.

combination loads.

SPECIFICATIONS

Ambient Temperature Rating . . . . . -50 to +165°F

Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. component recognized

ELECTRICAL RATINGS – SINGLE LOAD CONTACT RATINGS (ALL MODELS)

VAC

Resistive (Non-Inductive)

Motor Ratings (Inductive)

Pilot Duty

Watts

Amps

Full Load Locked Rotor

120

3000

25.0

14.0A

72.0A

125 VA

240

6000

25.0

7.0A

42.0A

125 VA

480

6000

12.5

–

480 VA

Model

Number Timings Switches

Timings – ON

Timings – OFF

M1-M2 M3-M4 M5-M6 M7-M8 M9-M10 M1-M2 M3-M4 M5-M6 M7-M8 M9-M10

24A34-1

1 1-20 –

–

– 40-110 –

–

24A34-2

–

– 30-90 –

–

– 1-30 –

–

24A34-3

➀

2 1-20 1-20 –

–

40-110 40-110

–

24A34-4

–

– 30-90 30-90 –

–

– 1-30 1-30 –

24A34-5

➀

3 1-110 1-110 1-110 –

– 1-110 1-110 1-110 –

–

24A34-6

➀

4 1-110 1-110 1-110 1-110 – 1-110 1-110 1-110 1-110 –

24A34-14

➀➁

5 1-160 1-160 1-160 1-160 1-160 1-160 1-160 1-160 1-160 1-160



24A34-21

1 1-20 –

–

– 1-50 –

–



24A34-22

1 15-45 –

–

– 1-30 –

–



24A34-23

1 25-55 –

–

– 15-45 –

–



24A34-24

1 30-75 –

–

– 1-40 –

–



24A34-25

1 40-90 –

–

– 1-30 –

–



24A34-26

2 1-20 30-90 –

–

– 40-90 1-30 –

–



24A34-27

2 1-160 1-160 –

–

– 1-160 1-160 –

–



24A34-28

➂

2 1-160 1-160 –

–

– 1-160 1-160 –

–



24A34-29

1 15-35 –

–

– 25-55 –

–



24A34-36

2 1-20 30-45 –

–

– 45-110 1-30 –

–

24A34-37

1 1-110 –

–

– 1-110 –

–

♦

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HEATING