McQuay MDS030A - Page 30

page 29
Model: MDS280/300BR (Master Unit)
KM2
OL
2
T1
T2
OL
1
KM1
1
8
R
380
V
/3
N~
/50
H
z
T
N
L1
T2
KM
5
O
L
5
1
9
21
2
3
O
L
4
KM4
2
6
24
J
1
8
HP
O
L
4
1
5
J1
O
L
5
L
HP
3
PMW
KM
5
S
V1
1
10
11
PMW
S
V2
4
2
FANH
FANL
4WV
L
O
W-
I
FIX2-
OL
O
L
3
O
L
1
14
13
DI
G
-
OL
V1-
V2+
V2-
TR
V1+
TH
3
HI
-
1
F
U
71
T
EXV1
EXV1
EXV4
KM
5
KM4
TH
5
TH7
FIX2
FIX1
D
I
G
5
17
T1
T2
KM
3
O
L
2
12
8
30
31
M
~
M
~
S2
S1
S3
MD
S
-
P
MD
S
-
M
Ap
c
Ain
L
O
W-
U
HI-
U
2
1
LPT
3
y
ellow
red
b
l
ac
k
b
r
o
wn
w
hit
e
y
ello
w
red
b
l
ue
y
ellow
red
b
l
ue
y
ellow
red
b
l
ue
red
b
l
ue
h
ea
t
er
S
haft
h
ea
t
er
h
ea
t
er
Constant-s
p
eed
com
p
ressor
1
Fan motorDi
g
ital compresso
r
Constant-s
p
eed
com
p
ressor
2
F
use
Overload
p
rotectio
n
C
ontacto
r
KM
LPT
HP
R
e
v
e
r
s
i
o
n
Description of the components and parts
:
DB
3A
4WV
F
U
Tr
a
n
s
f
o
rm
er
HPT
S1.3~S1.8 set the number of indoor units. S2.1 sets the unit as a master/slave. For details of S2.4~S2.8
,
see the instructions
.
1:
3:
2:
N
o
t
es:
Field wirin
g
Factory wirin
g
red
b
l
ac
k
w
hit
e
red
b
l
ac
k
w
hit
e
b
l
ack
whit
e
Connecting the slave unit
a