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PR-15, 20YC
(SPECIAL ORDER : LOW TEMPERATURE)
CIRCUIT BREAKER
Power supply
(FIELD SUPPLY)
3Phase
380~415Volt
PR -15YC···100A
50Hertz
PR -20YC···125A
TB1
52C1
L1
Red
L2
White
L3
Black
N
Blue
PE
52C2
Red
White
Black
52F
Red
F
F(3.15A)
TB4 11
Tr
AC
220 ~
240V
52
C2
52
CH2
C1
CH1
TB4 12
Caution,
1.To protect each Fan motors and Compressors
from abnormal current,these Over current relays<51C1,2>,
<51F1~5>are installed.
Therefore,do not change factory set value of these Over current relays.
2.To protect the compressors from frequently "ON-OFF",timer<TM>is
installed. Therefore,do not change factory set value of this timer.
3.This timer<2>installed so that two compressors may never start at
the same time. The unit stop if the set value of the timer is changed.
Note:
1.The dotted lines show field wiring.
2.The figure in the parentheses show field supply parts.
3.Color of earth wire is yellow and green twisting.
4.Not specified color of wire is brown.
5.Specification subject to change without notice.
MC1
INTERNAL
PROTECTOR
51C1
Red
Red
White
Black
Black
Red
White
Black
51C2
Red
Red
White
Black
Black
51F3
T B 3
52F5
R
21
R
21
Red
S
21
S
21
White
T
21
T
21
Black
52F6
51F1
Red
52F7
Tr2
White
MF1
Black
TB5
SWITCH BOX
1
(FIELD SUPPLY)
F
(3.15A)
RL1
RL2
SW1
23WA
High
Low
GL
SW2
AC
24V
2
3
5
6
4
7
T B 5
CZ1
FZ0
CZ2
FZ0
30
30
CZ1-1
CZ2-1
FZ1
10
51F2
R
S
T
MC2
INTERNAL
PROTECTOR
TB3
1
Red
R
R
22
22
Red
2
White
S
S
22
22
White
3
Black
T
T
22
22
Black
51F5
FZ0
51F1
30
30
CZ1-2
CZ2-2
51F4
51F5
51F2
51F3
63
63
H1
H2
CZ1
CZ2
C Z 1
51C1
51
C2
8
52
52
C1
C2
1
1
52
T M
C1
(3MIN)
26
26
L2
L1
52
F
3
3
F Z 1
TM
52
30
30
C1
C Z 1
CZ2
30
30
30
CZ1-1
CZ1-2
CZ2-1
CZ2-2
- 33 -
TB2
TB2
Red
52F2
R
R
11
11
Red
White
S
S
11
11
White
Black
T
T
11
11
Black
51F4
52F3
52F4
Tr1
MF3
INTERNAL
PROTECTOR
TB4
1 1
26D1
FZ
FZ
FZ
2
2
3
CZ2
26D2
52
52
T M
FZ2
C2
F2
(3MIN)
52
F3
FZ3
FZ1
2
FZ
3
(2SEC)
2
52
FZ4
C2
30
TB4 12
Symbol
Name
MC1·2
C omp ress or mot or
MF1
F an mot or (indoo r)
MF2·3
F an mot or (out door)
52C1·2
C ont ac t or (c om pres so r)
52F1
C ont ac t or (f an I / D )
TB1~5
T ermina l bloc k
CH1·2
C rank c as e heat er
F
Fuse
Tr1~3
T rans form er
51C1·2
O v er c urrent re lay (co mpres s or )
51F1~5
O v er c urrent re lay (f an I / D ,O / D)
63H1·2
H ig h-pres sure s w it c h
26L1·2
T hermos t at (free ze prot ec t ion )
TM
T imer (ant i s hort cy c le)
2
Timer
FZ0·1
A ux il iary re lay (f an)
CZ1·2
A ux il iary re lay (c om pres sor)
30CZ1-1, 2
A ux il iary re lay (c hec k )
30CZ2-1, 2
A ux il iary re lay (c hec k )
<SW1>
S w it c h (o ff )
<SW2>
S w it c h (o n)
<GL>
La mp (operat io n)
<RL1·2>
La mp (ch ec k)
<23WA>
T hermos t at (roo m te mp. )
26D1~4
T hermos t at (a mbiem t t emp .)
C ont ac t or (f an O / D )
52F2~7
A ux il iary re lay (f an O / D )
FZ2~7
1
Red
R
12
12
2
White
S
12
12
MF2
Black
3
T
12
12
INTERNAL
PROTECTOR
26D3
FZ
FZ
FZ
FZ
FZ
5
5
4
6
7
26D4
52
52
52
FZ5
F4
F5
F7
52
F6
FZ6
FZ
6
FZ7
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