Danfoss KP 15 Manuale utente

Pressure Controls

KP 15, KP 17W, KP 17B, KP 25

©Danfoss A/S RI5AK222 - 520H0146

060R9747

Instructions

Types

The controls can be used with CFC, HFC, HCFC refrigerants.

CAUTION: Do not install these controls on

ammonia systems

KP 15 man. (LP) / man. (HP) reset KP 15, KP 17B auto. (LP) / man. (HP) reset KP 15, KP 17W, KP 25 auto. (LP) / auto (HP) reset

Ambient temperatures Test pressure (pTEST)

ptest max.

505 psig

(35 bar pe)

ptest max.

285 psig

(20 bar pe)

t1min. KP 15, KP 25: –40°F (–40°C)

KP 17W, KP 17B: –13°F (–25°C)

t1max. 150°F (65°C)

CAUTION: Do not mount the control in a position where dirt, sediment,

or oil will aﬀect the operation of the control.

Enclosure

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

2 RI5AK222 - 520H0146

Connections

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.

SPDT

Controls with low pressure (LP) 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

Controls with low pressure (LP) and high

pressure (HP) signal)

KP 15 and KP 17W. Only code nos.:

060-2024060-2027 060-2030

060-2026060-2029 060-2031

(stamped on top of control)

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

HP signal option:

A-D close on HP rise

Contact load ratings

See label inside cover

Function

Note!

M= Load

x= Signal option

= Bellows movement on pressure rise

¬ = Bellows movement on pressure

drop

120 V a.c. 16 FLA, 96 LRA

240 V a.c. 8 FLA, 48 LRA

240 V d.c. 12 W pilot duty

RI5AK222 - 520H0146 3

Manual tripping

(Electrical contacts/wiring test)

LP side HP side

TRIP

use FINGERS

ONLY!

(Do NOT use

screwdriver)

Note:

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

corresponding LP and/or HP man. reset knob during

tripping.

Manual tripping

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.

Convertible reset

KP 15, code nos.: 060-2025, 060-2028

Reset options

Turn plate to desired LP man. LP-auto. LP-auto. LP-man.

reset conﬁguration HP-man. HP-man. HP-auto. HP-auto.

Adjustment spindle(s) location

KP 15 KP 15, KP 17B KP 15, KP 17W, KP 25

A. MAN./MAN. RESET B. AUTO/MAN. RESET C. AUTO./AUTO. RESET

4 RI5AK222 - 520H0146

©Danfoss A/S IC-MC/mr 02-2005

Setting

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

KP 15, KP 17W, KP 17B and KP 25 KP 15 with LP man. reset only KP 15, KP 17W, KP 17B and KP 25

with LP auto. reset only KP 15 with convertible LP auto.) with HP auto. or man. reset

man. reset

LP LP

scale scale

1. Adjust range spindle to 1. Adjust range spindle to 1. Adjust range spindle to

desired CUT-IN value. desired CUT-OUT value. desired CUT-OUT value.

2. Adjust diﬀerential 2. DIFFRENTIAL (DIFF.) 2. DIFFERENTIAL (DIFF.)

spindle to desired is ﬁxed. is ﬁxed.

DIFFERENTIAL Value printed on Value printed on

(DIFF.) value. scale plate. scale plate.

CUT-IN minus DIFFERENTIAL equals CUT-IN equals CUT-OUT plus CUT-OUT minus DIFFERENTIAL equals

CUT-OUT DIFFERENTIAL CUT-IN

Example: Example: Example:

CUT-IN – DIFF. = CUT-OUT CUT-OUT + DIFF. = CUT-IN CUT-OUT – DIFF. = CUT-IN

30 psig – 10 psi = 20 psig 12 psig + 10 psi = 22 psig 203 psig – 58 psi = 145 psig

(2.1 bar) (0.7 bar) (1.4 bar) (0.8 bar) (0.7 bar) (1.5 bar) (14 bar) (4 bar) (10 bar)

Adjustment

Note:

Remove lockplate before adjustment.

Replace lockplate after adjustment (if desired).

KP 15:

10 psi (0.7 bar)/rev

KP 25:

7 psi (0.5 bar)/rev

KP 15:

2 psi (0.15 bar)/rev

KP 25:

1.5 psi (0.1 bar)/rev

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