Danfoss KPR 1 Mode D'emploi page 2

ENGLISH
LOW-PRESSURE PRESSURE CONTROL,
type KPR 1, code no. 060-110766
Fig. 2
Contacts 1 – 4 break and 1 – 2 make at
falling pressure.
HIGH-PRESSURE PRESSURE CONTROL,
type KPR 5, code no. 060-117466
Fig. 3
Contacts 1 – 2 break and 1 – 4 make at
rising pressure.
"START" = starting pressure
"STOP" = stop pressure
"DIFF" = differential
TECHNICAL DATA
Type Regulation Differential
range
p ∆p
e
[bar] [bar]
KPR 1 -0.2 – 8 0.5 – 1.5
KPR 5 6 – 18 1.25 – 2.5
Ambient temperatures
-40 – 65 °C (80 °C for max. 2 hours).
Enclosure and tightness
IP30 in accordance with EN 60529 /
IEC 60529.
Contact system
Single-pole switch SPDT.
Contact load
Alternating current, a.c.
Ohmic load: 10 A, 440 V
Inductive load: 6 A, 440 V
Max. starting current: 50 A
("L.R." = locked rotor)
Direct current, d.c. 12 W, 220 V
FITTING
Fig. 4
KPR is connected with ¼ in. copper tube or
with capillary tube.
Normally it is not necessary to use
a dampening loop to damper pulsation's
from the plant.
Mounting bracket can be supplied.
See fig. 10.
Avoid mounting in or close to liquid pockets.
Figs. 5 and 6
Hold in counter position when flare nut is
tightened or loosened.
© Danfoss | Climate Solutions | 2021.07
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 fingers or with any tool.
ELECTRICAL CONNECTIONS
Figs. 2 and 3
The unit is provided with a cable entry for
6 – 14 mm cable (15, fig. 1).
Pg 13.5 screwed cable entry available as
accessory (fig.12).
TESTING
Fig. 7
Under arm 24 to be rocked.
NB! Use only the method shown for testing.
The contact system must never be acti-
Max. working
vated direct by means of a screwdriver
pressure
PB
or the like.
[bar]
15
SETTING
20
Figs. 8 and 9
Loosen the locking screw between the
setting spindles.
Stop or start pressure is set with the range
spindle 1 and read off on the "STOP/START"
scale. The differential is set with the differen-
tial spindle 2 and read off on the "DIFF" scale.
After each setting, tighten the locking
screw again.
A. Low pressure with KPR 1
See figs. 2 and 4.
The compressor motor is to be stopped
at falling pressure and started at ris-
ing pressure.
Set the starting pressure with the range
spindle 1. One turn ~ 0.7 bar.
Differential = starting pressure minus stop
pressure. Set the differential with the dif-
ferential spindle 2. One turn ~ 0.15 bar.
NB. The stop pressure must be above the
absolute vacuum (p
eration compressor will not stop at low
stop pressure, check whether the differen-
tial is set to too high a value.
Check start and stop pressures with a gauge.
B. High pressure control (condenser pressure
control) with KPR 5
See figs. 3 and 4.
The condenser fan is to be started at rising
pressure and stopped at falling pressure.
Set the starting pressure with the range
spindle 1. One turn ~ 2.3 bar.
Differential = starting pressure minus
stop pressure.
Set the differential with the differential
spindle 2. One turn ~ 0.28 bar.
Check starting and stop pressures with
a gauge.
LAVTRYKSPRESSOSTAT,
type KPR 1, best. nr. 060-110766
Fig.2
Kontakterne 1 – 4 bryder, og 1 – 2 slutter
ved fal dende tryk.
HØJTRYKSPRESSOSTAT,
type KPR 5, best. nr. 060-110766
Fig. 3
Kontakterne 1 – 2 bryder, og 1 – 4 slutter
ved sti gende tryk.
»START« = starttryk
»STOP« = stoptryk
»DIFF« = differens
TEKNISKE DATA
Type
KPR 1
KPR 5
Omgivelsestemperatur
-40 – 65 °C (80 °C i maks. 2 timer).
Kapsling og tæthed
IP30 i henhold til EN 60529 / IEC 60529.
Kontaktsystem
Énpolet skiftekontakt SPDT
Kontaktbelastning
Vekselstrøm. a.c.
Ohmsk belastning: 10 A, 440 V
Induktiv belastning: 6 A, 440 V
Maks. startstrøm: 50 A
(»L.R.« = blokeret rotor)
Jævnstrøm, d.c. 12 W, 220 V
MONTERING
Fig. 4
KPR tilsluttes med ¼ in kobberrør eller
= -1 bar). If the refrig- med kapillarrør.
e
Det er normalt ikke nødvendigt at bruge
dæmpesløjfe for at dæmpe pulsationerne
fra anlægget.
Monteringskonsol kan leveres. Se fig. 10.
Undgå tilslutning i eller ved væskelommer.
Fig. 5 og 6
Hold kontra på tilslutningsstudsen, når
flareomløberen spændes eller løsnes!
DANSK
Regulerings- Differens Maks.
område driftstryk
p ∆p
e
[bar] [bar]
-0.2 – 8 0.5 – 1.5
6 – 18 1.25 – 2.5
AN21348643448101-000302 | 2
PB
[bar]
15
20