Danfoss AK-RC 251 Operating guide
AK-RC 251
AUX.
1
AUX.
2
AUX.
2
AUX.
1
COND
HG
PRG
O10=4 / 8
PRG
o10=2
Schemes / Esquemas
080C0455
A: InI= 1, 4, 11
1: Only / Sólo InI=1
2: Only / Sólo InI= 1 & 4
RS485
Tr- Tr+
Gnd Gnd GndS1
NTC / D. INPUT
D1S2D2/S3
AUX 2
CNC
NO
DEF.
NC NO
C NO
COOLFAN AUX 1
C
C NC NO C
NO
100 - 240 V~
50 - 60 Hz
COMPRESSOR / COMPRESOR
NL
VAC
N
L
CRANKCASE RESISTOR /
RESISTENCIA DE CÁRTER
FAN / VENTILADOR
DEFROST RESISTOR /
RESISTENCIA DESHIELO
SOLENOID / SOLENOIDE
InI= 2, 5, 7, 9, 12
PRG
{11=1
PRG
{11=0
{20=3
{21=0
DIG. IN
DIG. IN
D1 D1
Gnd Gnd
A
D2 / S3 D2 / S3
A
LP HP
LP HP
B
S1
I20=7 / 8
C
12 (9) A
230 V~
S3
L
N
1 (1) A
N
5 A
230 V~
230 V~
L
N
3000 W
230 V~
2
L
1
L N
12 (12) A
230 V~
D1
S2 D2
B: InI= 2, 3, 5, 6, 12, 13
1: Only / Sólo InI=2 & 3
D
C
2: Only / Sólo InI= 2, 3, 5 & 6
RS485
Tr- Tr+
Gnd Gnd GndS1
NTC / D. INPUT
D1S2D2/S3
AUX 2
CNC
NO
DEF.
NC NO
C NO
COOLFAN AUX 1
C
C NC NO C
NO
100 - 240 V~
50 - 60 Hz
NL
VAC
N
L
HOT GAS-VALVE / VÁLVULA DE GAS CALIENTE
CONDENSER SOLENOID FOR HOT GAS /
SOLENOIDE DE CONDENSADOR
PARA GAS CALIENTE
AUXILIARY RELAY 1 / RELÉ AUXILIAR 1
HIGH-LOW PRESSURE CONTROLLER /
PRESOSTATO DE ALTA-BAJA
HIGH PRESSURE CONTROLLER /
PRESOSTATO DE ALTA
LOW PRESSURE CONTROLLER /
PRESOSTATO DE BAJA
4-WAY INVERTER VALVE / VÁLVULA
INVERSORA DE 4 VIAS
DRAINAGE OR DOOR FRAME RESISTOR /
RESISTENCIA DRENAJE O MARCO PUERTA
AUX 2
CNC
NO
100 - 240 V~
50 - 60 Hz
N L
+
PRG
{11=0
{20=3
{21=0
We reserve the right to supply materials that might vary slightly to those described in
our Technical Sheets. Updated information is available on our website.
Nos reservamos el derecho de suministrar materiales que pudieran diferir levemente
de los descritos en nuestras Hojas Técnicas. Información actualizada en nuestra web.
InI= 2, 5, 7, 9, 12
DIG. IN
D1
Gnd
D2 / S3
1 1
HP
HP
4 4
2 2
LP
S1
I20=7 / 8
LP
© Danfoss | DCS (vt) | 2020.12
12 (9) A
230 V~
S3
L
N
1 (1) A
N
5 A
230 V~
230 V~
L
N
3000 W
230 V~
2
L
1
L
N
12 A
N
150 W
230 V~
230 V~
L
COLD ROOM LIGHT / LUZ CUARTO FRIO
AUX 2
CNC
NO
100 - 240 V~
50 - 60 Hz
N L
ID364426310184-0102
D1
S2 D2
PRG
{11=1
PRG
{11=0
{20=3
{21=0
PRG
{11=0
{20=3
{21=0
PRG
{21=1
C: InI= 7, 8
AUX.
2
HG
COND
AUX.
2
AUX.
1
COND
HG
RS485
Gnd Gnd GndS1
Tr- Tr+
S1
NTC / D. INPUT
D1S2D2/S3
D1
S2 D2
I20=7 / 8
COMPRESSOR / COMPRESOR
InI= 2, 5, 7, 9, 12
DIG. IN
A
LP
DIG. IN
D1 D1
Gnd Gnd
D2 / S3 D2 / S3
A
LP
CRANKCASE RESISTOR /
RESISTENCIA DE CÁRTER
FAN / VENTILADOR
DEFROST RESISTOR /
RESISTENCIA DESHIELO
SOLENOID / SOLENOIDE
C
HP
D
HP
C
B
HOT GAS-VALVE / VÁLVULA DE GAS
CALIENTE
CONDENSER SOLENOID FOR GAS
CALIENTE / SOLENOIDE DE
CONDENSADOR PARA HOT GAS
AUXILIARY RELAY 1 / RELÉ AUXILIAR 1
HIGH-LOW PRESSURE
CONTROLLER / PRESOSTATO DE
ALTA-BAJA
HIGH PRESSURE CONTROLLER /
PRESOSTATO DE ALTA
LOW PRESSURE CONTROLLER /
PRESOSTATO DE BAJA
4-WAY INVERTER VALVE /
VÁLVULA INVERSORA DE 4 VIAS
100 - 240 V~
50 - 60 Hz
AUX 2
CNC
NO
12 (9) A
230 V~
S3
DEF.
NC NO
L
C NO
L
N
1 A
230 V~
N
1 A
230 V~
COOLFAN AUX 1
C
C NC NO C
NO
L
L
N
5 A
230 V~
N
1 (1) A
230 V~
L
L
N
150 W
230 V~
VAC
N
12 A
230 V~
NL
N
L
C: InI= 9, 10
RS485
Tr- Tr+
Gnd Gnd GndS1
NL
VAC
NTC / D. INPUT
AUX 2
CNC
NO
DEF.
NC NO
C NO
COOLFAN AUX 1
C
C NC NO C
NO
100 - 240 V~
50 - 60 Hz
D1S2D2/S3
D1
S1
S2 D2
I20=7 / 8
L
N
150 W
230 V~
N
12 A
230 V~
12 (9) A
230 V~
S3
L
L
N
5 A
L
N
1 (1) A
230 V~
230 V~
N
1 (1) A
230 V~
L
N
L
InI= 7, 8
HOT GAS
+
InI= 2, 5, 7, 9, 12
DIG. IN
D1
Gnd
D2 / S3
1 1
HP
HP
4 4
2 2
DIG. IN
Gnd
LP
LP
D2 / S3
1
HP
HP
4
2
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