Danfoss KP 1 Manuale utente

Installation Guide

Pressure Control

Types KP 1, KP 2, KP 5, KP 7W, KP 7B

060R9746

Refrigerants

Auto reset:

KP 1, KP 2, KP 5, KP 7W

Manual reset:

KP 1, KP 5, KP 7B

HCFC and non-ammable HFC

Mounting

CAUTION:

Do not mount the control in a position where dirt,

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

CAUTION:

Do not install these controls on ammonia systems.

Mounting requirements Ambient temperatures

t1 min. KP 1, KP 2, KP 5: -40 °F (-40 °C)

t1 min. KP 7: -13 °F (-25 °C)

t1max.: 149 °F (65 °C)

Test pressure (Ptest)

Enclosure

max. 1/8in.

(3 mm)

B: Enclosure: ~NEMA 1A: 10 – 32 UNC Threads

CAUTION:

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

Connections

Ptestmax.:

KP 1, KP 2: 285 psig (20 bar pe)

KP 5, KP 7: 510 psig (35 bar pe)

KP 2: 174 psig (12 bar pe)

Bellows Bellows

2 DKRCC.PI.C00.E1.22 / 520H6070 © Danfoss A/S (AC-MCI / jmn), 2012-11

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.

Wiring

All wiring should conform

to the National Electrical Code

and local regulations.

Terminal block

CAUTION:

Use terminal screws furnished

in the contact block.

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

Use copper wire only.

Contact load ratings

Load Option A

CUT-OUT on pressure drop

Wire terminals 1-4:

CUT-IN = High Set Point (HSP)

see “Setting”

CUT-OUT = Low Set Point (LSP)

see “Setting”

Load Option B

CUT-OUT on pressure rise

Wire terminals 1-2:

CUT-IN = Low Set Point (LSP)

see “Setting”

CUT-OUT = High Set Point (HSP)

see “Setting”

Example:

CUT-IN = 30 psig

CUT-OUT = 10 psig

This means :

CUT-IN = HSP = 30 psig

CUT-OUT = LSP = 10 psig

Example:

CUT-IN = 250 psig

CUT-OUT = 350 psig

This means :

CUT-IN = LSP = 250 psig

CUT-OUT = HSP = 350 psig

Bellows movement

on pressure rise

The free terminal can be

used for signal purpose.

120 V a.c. 16 FLA, 96 LRA

240 V a.c. 8 FLA, 48 LRA

240 V d.c. 12 W pilot duty

Terms 1-4 close on pressure rise

Terms 1-4 open on pressure drop

Terms 1-2 close on pressure drop

Terms 1-2 open on pressure rise

Bellows movement

on pressure drop

Note:

KP 1, man. reset is possible only

after a pressure rise

of 10 psi (0.7 bar). KP 5 and KP 7B,

man. reset is possible

only after a pressure drop

of respectively 43 psi (3.0 bar)

and 58 psi (4.0 bar)

Note:

KP 1, KP 5 and KP 7B with man. reset:

Push manual reset knob during

manual tripping.

TRIP (main lever)

use FINGERS ONLY!

(Do NOT use screwdriver)

To resume control operation

after safety cutout,

push reset knob as indicated.

Adjustment spindle(s) location

Type Dierential

KP 1 10 psi (0.7 bar)

KP 5 43 psi (3 bar)

KP 7B 58 psi (4 bar)

Auto reset KP 1, KP 2, KP 5, KP 7W

Manual reset KP 1, KP 5, KP 7B

A: Range

B: Dierential

A: Range

B: Dierential

Manual trip function

(Electrical contacts / wiring test)

Manual reset

Manual reset KP 1, KP 5, KP 7B

Setting

(see also “Wiring”)

KP 1 (auto reset), KP 2, KP 5, KP 7W, KP 7B

1. Adjust range spindle to desired HIGH SET POINT (HSP)

2. Adjust dierential spindle to desired DIFFERENTIAL (DIFF.)

1. Adjust range spindle to desired LOW SET POINT (LSP)

2. DIFFERENTIAL is xed Value printed on scale plate

HIGH SET POINT minus DIFFERENTIAL equals LOW SET POINT

Example: Example:

LOW SET POINT plus DIFFERENTIAL equals HIGH SET POINT

KP 1 (manual reset ONLY)

HSP – DIFF. = LSP

30 psig – 20 psi = 10 psig

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

LSP + DIFF. = HSP

12 psig + 10 psi = 22 psig

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

If terminals 1-4 are used: CUT-IN = HSP

CUT-OUT = LSP

If terminals 1-2 are used: CUT-IN = LSP

CUT-OUT = HSP

Note:

KP 5 (manual reset) and KP 7B have xed di.

Value printed on scale plate.

Adjustment

Note:

Remove lockplate before adjustment.

Replace lockplate after adjustment (if desired).

See instruction printed on top of control

KP 1: 3 psi (0.2 bar)/rev.

KP 2: 1.5 psi (0.1 bar)/rev.

KP 5: 4 psi (0.3 bar)/rev.

KP 7W: 7 psi (0.5 bar)/rev.

Range

Increase

360°

Decrease

360°

Increase

360°

Decrease

360°

6 mm

(15/64 in.)

Dierential

KP 1: 10 psi (0.7 bar)/rev.

KP 2: 7 psi (0.5 bar)/rev.

KP 5, 7W, 7B: 33 psi (2.3 bar)/rev.

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