Danfoss KP 73 Manuale di installazione - Pagina 2

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Wiring

CAUTION: Disconnect power supply before

wiring connections are made to avoid possible

electrical shock or damage to equipment.

All wiring should conform to the National

Electrical Code and local regulations.

Terminal block

CAUTION: Use terminal screws furnished

inthe contact block.

Use tightening torque 20 lb. in. (2.3 Nm).

Use copper wire only.

Contact load ratings

120V a.c.

16 FLA, 96 LRA

240V a.c.

8 FLA, 48 LRA

240V d.c.

12W pilot duty

Manual tripping

(Electrical contacts/wiring test)

Note:

use FINGERS ONLY!

(Do NOT use screwdriver)

Manual reset

Load Option A

CUT-OUT on temperature drop

Wire terminals 1 - 4:

CUT-IN = High Set Point (HSP)

see "Setting"

CUT-OUT = Low Set Point (LSP)

see "Setting"

Terms 1 - 4 close on temperature rise

Terms 1 - 4 open on temperature drop

Example:

This means

CUT-IN

and

CUT-OUT

Note:

= Bellows movement on pressure rise

= Bellows movement on pressure drop

The free terminal can be used for

Main

lever

Contacts

position

KP w/ auto reset

DKRCC.PI.CA0.C1.22 / 520H8304

CUT-IN

= 10 °C (50 °F)

CUT-OUT

= 4.5 °C (40 °F)

= HSP = 10 °C (50 °F)

= LSP = 4.5 °C (40 °F)

signal purpose.

Contacts

position

Note:

use FINGERS ONLY!

(Do NOT use screwdriver)

Load Option B

CUT-OUT on temperature rise

Wire terminals 1 - 2:

CUT-IN = Low Set Point (LSP)

see "Setting"

CUT-OUT = High Set Point (HSP)

see "Setting"

Terms 1 - 2 close on temperature drop

Terms 1 - 2 open on temperature rise

Example:

CUT-IN

= 0 °C (32 °F)

CUT-OUT

= 10 °C (50 °F)

This means

CUT-IN

= LSP = 0 °C (32 °F)

and

CUT-OUT

= HSP = 10 °C (50 °F)

Contacts

position

Main

lever

Contacts

position

KP w/ manual reset

Note:

Push manual reset knob during manual

tripping.

To resume control operation after safety

cut-out, push reset knob as indicated.

Note:

Man. reset is possible only after a

temperature rise of fixed differential (example

5.4 °F)