N
egative temperature cold room with three phase defrost
Selection table:
Item code
Power
supply
Compressor
Evap.
Fan
Cond. Fan /
Door frame
heater
Defrost
Cabinet
Size
Shipping
weight
V ac
Φ
Φ
Φ
Φ
Power
AC-3
Amps
Amps
Amps
Amps
modules
Kg
CR-NDT150-1
400
3
1,5 kW
3,5
3,2
4
3 x 5
24
4,1
CR-NDT250-1
400
3
2,5 kW
5,7
3,2
4
3 x 9
24
4,1
CR-NDT400-1
400
3
4,0 kW
8,5
4,8
6
3 x 10
24
4,1
CR-NDT550-1
400
3
5,5 kW
11,5
4,8
6
3 x 12
24
4,1
CR-NDT750-1
400
3
7,5 kW
15,5
4,8
6
3 x 16
24
4,1
Wiring diagram:
Va lv e
P um p
do w n
D ef ros t
23 0 V 3 ~
rea ker
1P +N
Circuit
B
Circuit
~ 400 V
Breaker
3
Contactor
Fa n
23 0 Volts
A 99
Conta ct
pum p
dow n
A 99
1L1 3L2 5L3
2T1 4T2 6T3
I> I> I>
A1 1L1 3L2 5L3
2T1 4T2 6T3
A2
Com pressor
3 ~ 400 Volts
M R 15D R 230
10
11
B1 A D A B2 A
N
13
7
4
N
N
N
N 4’
1
3N
2
4N
A larm
23 0 V ~
0,5 A
8T4
7L4
21
21
21
21
22
22
22
22
3’
1/ 2 3/ 4 5/6
2/1
4/3
6/5
1L1 3L2 5L3
2T1 4T2 6T3 8T4
7L4
A1
A2
Circuit
B reaker
4P
7/8
7/8
Com pressor
Contactor
Defro st
Defro st
Com pressor
K1
CB1
K2
A m bie nt S e ns or
E va p o ra to r S en so r
2 3
Cond. Fan /
Door fram e
2 4
Negative temperature cold room three phase Compressor and three phase Defrost models
8
CR1
Catalogue Section 9
© 2000 Johnson Controls, Inc.