Johnson Controls MR12DR230-1C Manual page 7

CR1
Wiring diagram
K1
A2
© 2010 Johnson Controls, Inc.
Negative temperature cold room single phase models
A m bie nt Se ns or
1L1 3L2 5L3
C o m pres sor
C ircu it
B re aker
1 3N
3 ~ 400 V
I> I> I>
CB1
2T1 4T2 6T3
C ircu it
B rea ker
1P +N
2 4N
A1 1L1 3L2 5L3 7L4
C o m pres sor
C o ntactor
2T1 4T2 6T3 8T4
Cond. Fan /
Door frame
Compressor
3 ~ 4 00 Volts
2 1
Negative temperature cold room three phase models
E va po ra tor S ensor
C ontact
A 99 A 99
pum p
dow n
B1 A D A B2 A 11 10
M R 15D R 230
N N 13 N 7 N 4 N 4' 3'
A larm
23 0 V~
0,5 A
Va lv e
2 3 2 4
Pu m p
Fa n
do w n
23 0 Volts
N
2 2
D efros t
23 0 V ~
2 0
Catalogue Section 9
7