Danfoss KP 15A Manuale utente

060-007866

Installation Guide

Pressure Control

Type KP 15A

060R9752

Refrigerants

CAUTION:

Do not mount the control in a position where

dirt, sediment or oil will aect the operation of the control.

t1min .: -40 °F (-40 °C)

t1max.: 65 °C (149 °F)

Ambient temperatures / Mounting requirements Test pressure (Ptest)

Connections

Mounting

R717, HCFC and non-ammable HFC

Cutting ring

ptest max.

20 bar (285 psig)

PS/MWP

ptest max.

35 bar (510 psig)

PS/MWP

2 DKRCI.PI.C00.C1.22 / 520H6064 © Danfoss A/S (AC-MCI / jmn), 2012-11

CAUTION:

The mounting panel must be plane to avoid damage of control.

Enclosure

Wiring

All wiring should conform to the National

Electrical Code and local regulations.

SPDT

Controls with low pressure (LP) signal

Terminal block

Controls with low pressure (LP)

and high pressure (HP) signal)

Terminal block

CAUTION:

Use terminal screws furnished

in the contact block.

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

Use copper wire only.

Low pressure (LP) side:

A-C close on LP rise

A-C open on LP drop

High pressure (HP) side.

A-C open on HP rise

A-C close on HP drop

LP signal option:

A-B close on LP drop

See label for current wiring inside cover

CAUTION:

Use terminal screws furnished

in the contact block.

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

Use copper wire only.

Low pressure (LP) side:

A-C close on LP rise

A-C open on LP drop

High pressure (HP) side.

A-C open on HP rise

A-C close on HP drop

LP signal option:

A-B close on LP drop

HP signal option:

A-D close on HP rise

Contact load ratings

See label inside cover

= Load

= Signal option

= Bellows movement

on pressure rise

= Bellows movement

on pressure drop

Function

120 V a.c. 16 FLA, 96 LRA

240 V a.c. 8 FLA, 48 LRA

240 V d.c. 12 W pilot duty

CAUTION:

Disconnect power supply before wiring connections are made or service to avoid possible electrical shock

ordamage to equipment. Do never touch live parts with your ngers or with any tool.

Note!

max 1/8in.

(3 mm)

B: Enclosure ~NEMA1 C: Enclosure ~NEMA2A: 8 – 32 UNC (M4)

Reset options

LP man. LP auto. LP auto. LP man.

HP man HP man HP auto. HP auto.

Manual tripping

(Electrical contacts/wiring test)

Note:

On controls with LP and/or HP man. reset, push corresponding

LP and/or HP man. reset knob during tripping.

Trip:

use FINGERS ONLY! (Do NOT use screwdriver)

To resume control operation after safety cut-out,

push man. reset knob as indicated.

Note:

LP man. reset is possible only after system pressure

has risen above cut-in value.

HP man. reset is possible only after system pressure

has dropped below cut-out value.

Manual reset

Convertible reset

Note:

Do not select automatic reset if safety

of the system requires manual reset.

Note:

Selected reset conguration may be protected

against unauthorized actions applying a seal.

Insert a screwdriver into the slot on the lock disc and turn it

to desired reset conguration. Do not turn the screw on the

lock disc as it may damage the convertible reset mechanism.

LP side HP side

Adjustment spindle(s) location

Use screw

driver only

111

4 DKRCI.PI.C00.C1.22 / 520H6064 © Danfoss A/S (AC-MCI / jmn), 2012-11

Adjustment

Note:

Remove lockplate before adjustment.

Replace lockplate after adjustment (if desired).

1. Adjust range spindle

to desired CUT-IN value.

2. Adjust dierential spindle to desired

DIFFERENTIAL (DIFF.) value.

CUT-IN minus DIFFERENTIAL

equals CUT-OUT

Example: Example: Example:

CUT-IN equals CUT-OUT plus

DIFFERENTIAL

CUT-OUT minus DIFFERENTIAL

equals CUT-IN

1. Adjust range spindle

to desired CUT-IN value.

2. DIFFRENTIAL (DIFF.) is xed.

Value printed on scale plate.

1. Adjust range spindle

to desired CUT-OUT value.

2. DIFFRENTIAL (DIFF.) is xed.

Value printed on scale plate.

CUT-IN – DIFF. = CUT-OUT

30 psig – 10 psi = 20 psig

(2.1 bar) (0.7 bar) (1.4 bar)

CUT-OUT + DIFF. = CUT-IN

12 psig + 10 psi = 22 psig

(0.8 bar) (0.7 bar) (1.5 bar)

CUT-OUT – DIFF. = CUT-IN

203 psig – 58 psi = 145 psig

(14 bar) (4 bar) (10 bar)

LP range LP dierential

HP range

Increase

360°

Decrease

360°

Increase

360°

Decrease

360°

Decrease

360°

Increase

360°

10 psi

(0.7 bar)

/rev.

2 psi

(0.15 bar)

/rev.

33 psi

(2.3 bar)

/rev.

15/64 in.

(6 mm)

Low pressure (LP) side setting High pressure (HP) side setting

Setting

KP 15A with LP auto. reset only KP 15 A with HP auto./man. reset

KP 15A with LP man. reset only

KP 15A with convertible LP auto./man. reset

LP scale LP scale HP scale

Lockplate

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