Specifications
-29-
WIRING DIAGRAMS
PRHG-8, 10MYA
(STANDARD)
WHITE
RED
L1
L1( )
GRAY
3
Power Supply
380~415VAC
3N~PE
50Hz
3
C03
B
Fig 1.Control box Arrangement
SV
21S4
63H
MF2MF1
MC
&49C
CH
Q
V
U
T
S
R
P
K
G
F
E
&
&
H
L
M
N
3J
2J
1J
2D1D
2C 3C1C
GRAY
5
GRAY
4
6
GRAY
1
BLUE
BROWN
BROWN
25
26
27
24
BROWN
BROWN
BROWN
51
L1
23
VIOLET
VIOLET
22
21
20
N
BLUE
PINK
15
13
PINK
14
19
18
17
VIOLET
16
12
11
VIOLET
PINK
51F1
52C
RED
GRAY
RED
RED
WHITE
BLACK
RED
WHITE
BLACK
RED
WHITE
BLACK
BLACK
BLUE
BLACK
WHITE
RED
Solenoid valve
Auxiliary relay (4-way valve)
Thermostat (defrost)
Auxiliary relay (defrost)
Contactor (defrost)
Connector
4-Way valve
Timer (defrost)
NameSymbol
T1,2
21S4
C03,04,05
11~15
X1
X2
26D
HZ
SV
Crankcase heater
Internal thermostat (compressor)
Internal thermostat (fan O/D)
Auxiliary relay (check)
Auxiliary relay (compressor)
Auxiliary relay (fan)
High-pressure switch
NameSymbol
63H
FZ
CZ
30CZ,30FZ
49F
49C
CH
CR1,2 Surge killer
Over current relay(fanI/D,O/D)51F1,2
51C Over current relay(compressor)
TransformerTr
F1,F2 Fuse (3.15A)
Terminal block
Contactor (fan I/D)
TB1~3
52F
52C
Fan motor (outdoor)
Contactor (compressor)
MF2
Fan motor (indoor)MF1
MC Compressor motor
NameSymbol
LCD REMOTE CONTROLLER
(PAC-204RC)
FAN HI
4WV
COMP 1
24VAC(N)
24VAC(L)
X1
X1
X2
52F
(15 MIN)
(30 MIN)
26D
TB3
X2
51F2
T2T1
FZ
5
4WV
Reversing valve for
Heating operation
COMP1
24VAC(L)
Power (Neutral)
Fan operation
Cooling or Heating
operation
Power (Active)
Function
4
6
1
No.
TB2
Symbol
24VAC(N)
Controller connection.
PAC-204RC
terminal no.
FAN HI
FZ
5
3
CZ
TB1
L1
L2
L3
52C
51C
51F1
MF1
MC
MF2
F1
N
PE
FZ
30
FZ
52F
FZ
30
52C
CZ
30
CZ
CZ
30
Tr
AC
24V
1
TB2
F2(3.15A)
PRHG-8MYA
···
50A
PRHG-10MYA
···
60A
CIRCUIT BREAKER
(FIELD SUPPLY)
6
49F
51C
63H
HZ
4
51F2
51F2
49C
X1
(3.15A)
HZ
X2
26D
T1
T2
21S4 X1
T1
T2SV
C11
1
2
3
C13
1
3
1
3
C12
1
2
C14
1
C04
1
33
CH
C15
1
3
1
C05
3
TB3
FC
TB3
N
CR1 CR2
NN
X2
X1
Tr
CZ HZ
30
CZ
30
FZ
52F
51F1
51C
52C
TB2
TB1
3
1A
2A
F1
F2
∗
Lead wire
( mark wire)
E
K
EKL1EKL1
EKL1
EKL1
<Example>
(REF.THIS DRAWING)
CONNECTED ADDRESS
WIRE NUMBER
(REF.Fig 1,2)
∗
Note
1.The dotted lines show field wiring.
2.The figure in the parenthesis show field supply parts.
3.Color of earth wire is yellow and green twisting.
4.In case of power supply 380V AC model Tr wiring.
5.Refer below example about wiring mark.
6.Specification subject to change without notice.
Caution,
1.To protect each fan motors and compressor from abnormal current,Over current relays
<51C>,<51F1,2> are installed. Therefore, Do notchange factory set value of over current relays.
2.Do not change factory set value of all timers.
RED
SILVER
1
C03
NOTE 4
C03
21S4
U
V
SV
BOX
CH1
49C
S
MF1
MF2
CONTROL
T
P
R
MC
Q
49F
63H
Fig 2.Unit internal layout (Service view)
3
C03
SILVER
RED
1
C03
Tr
AC
24V
C03
1
C04
1
33