McQuay MAC Especificaciones Pagina 55

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Electrical And Wiring
R
e
m
o
v
e
t
hi
s
wir
e
when doin
g
wirin
g
for fa
n
sp
eed controlle
r
Wirin
g
for fan
sp
eed controller
(
FSC
)
F
SC
O
F I
N
O
F
OUT
T
B
3
T
B
3
O
F I
N
O
F
OU
T
T
O
(
PCB
)
OUT_F
AN1
F
F
T
O
(
A
)
OUT_FAN
1
CAP
ACIT
P
P
OR
P
ower suppl
y
400V / 3Ph-N / 50H
z
L
1
N
T
B
1
R
S
T
N
L
2
L
3
T
B
3
P
ower suppl
y
230V / 1Ph-N / 50H
z
R
e
m
o
v
e
t
hi
s
wir
e
when do
i
n
g
w
i
r
i
n
g
for fan s
p
ee
d
co
n
t
r
olle
r
Fi
g
u
r
e
8
O
F I
N
O
F
OUT
O
F I
N
O
F
OU
T
Wirin
g
for fa
n
sp
eed controlle
r
(
FSC
)
FSC
T
B
3
T
O
(
PCB
)
OUT
_F
AN1
T
O
(
A
)
OUT_FAN
1
CAP
ACIT
P
P
OR
L1
N
T
B
1
L
/
L
1
N
/
L
2
1
5
Nm
Refer to the wiring diagram provided on the unit when making electrical wiring.
Install an isolator (optional) to prevent electrical shock.
Do not ground any electrical equipment to the water piping.
Operation of the mini chiller without any fan speed controller (Field supply) is limited to an ambient
temperature of 20C. With the fan speed controller (Field supply), the unit is able to operate down
to -5C.
All mini chillers will have a 1/4” access valve provided for along the liquid
line of the refrigerant circuit.This valve is for direct pressure connection
to the fan speed controller. To install the fan speed controller, screw in
the female adaptor to the 1/4” access valve. Use a pair of spanners to
tighten properly(max. torque 15Nm). See Fig. 8. Ensure there is no leakage at
the joint. Wire the fan speed controller to the terminal blocks.
M4AC / MAC 020 / 025 / 030C/CR
M5AC 020 / 025CR
M4AC / MAC 040 / 050 / 060C/CR
M5AC 030 / 040 / 050 / 055CR
53
FM1 FM2 OF1 OF2
FSC1
FSC2
4WV
2
4WV
1
HTR
ALL
I
N
ALL
FM1
FM2 OF1
OF2
C / H ON/
OFF
OFF ON
C
H
12 VDC or 230V
AC
P
ower suppl
y
415V / 3Ph-N / 50H
z
Wirin
g
for fan spee
d
controller
(
FSC
)
R
e
m
o
v
e
t
h
ese
wir
es
when do wirin
g
for fa
n
s
p
eed controller
M4AC / MAC 080 / 100 / 120 / 150C/CR
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