Electrical Wiring Connection; Cooling Unit - McQuay WM301 Montageanleitung

Cooling unit

IMPORTANT :
* The figures shown in the table are for information purpose only. They should be checked and selected
to comply with the local/national codes of regulations. This is also subject to the type of installation
and conductors used.
** The appropriate voltage range should be checked with label data on the unit. ETL listed is only applicable to 60Hz
power supply only.
Model
Voltage range**
Power supply cable size*
Number of wires
Interconnection cable size*
Number of wires
Recommended fuse
WM07 / 10 / 15 / 20 / 25 / 301 VS SL07 / 10 / 15 / 20 / 25 / 30B
5WM311 VS 5SL28C
Indoor Unit
Terminal Block
COMP
N2
N1
L
!
WM201 / 251 VS SL20 / 25B (3 Phase)
Indoor Unit
Terminal Block
COMP
N2
N1
L
Power Supply Cable
!
There must be a double pole
switch with a minimum 3mm
contact gap and fuse/circuit
breaker as recommended in
the fixed installation circuit.
Wire Clamp
Interconnection

ELECTRICAL WIRING CONNECTION

Indoor WM 071/ 101/ 151 WM201/ 251/ 301
Outdoor SL07/ 10/ 15B
220V-240V/ 1Ph/ 50Hz +
mm 2 1.5
3
2
mm 1.5
3
A 15
Outdoor Unit
Terminal Block
COMP
N
Power Supply Cable
There must be a double pole
switch with a minimum 3mm
contact gap and fuse/circuit
breaker as recommended in
the fixed installation circuit.
Outdoor Unit
Terminal Block
COMP
L
N
R
S
T
N
Cable
5WM311
SL20/ 25/ 30B 5SL28C
or 208V-230V/ 1Ph/ 60Hz +
2.5 2.5
3 3
2.5 2.5
3 3
20 20
WM301 VS SL30C
Indoor Unit
Terminal Block
COMP
N2
N1
L
Power Supply Cable
!
There must be a double pole
switch with a minimum 3mm
contact gap and fuse/circuit
breaker as recommended in
the fixed installation circuit.
WM301 VS SL30C (3 Phase)
Indoor Unit
Terminal Block
COMP
N2
N1
L
Power Supply Cable
!
There must be a double pole
switch with a minimum 3mm
contact gap and fuse/circuit
breaker as recommended in
the fixed installation circuit.
• All wires must be firmly connected.
• All wires must not touch the refrigerant piping,
compressor or any moving parts of the fan motor.
• The connecting wires between the indoor unit and the outdoor
unit must be clamped on the wire clamps as shown in the
figure.
• The power supply cord must be equivalent to H05RN-F
(245IEC57) which is the minimum requirement.
1-8
WM301 WM201/ 251/ 301
SL30C SL20/ 25/ 30B
380V-415V/ 3Ph/ 50Hz +N+
4 1.5
3 5
2.5 1.5
4 4
25 15
Outdoor Unit
Terminal Block
L
N
S
R
COMP
L
N
Outdoor Unit
Terminal Block
COMP
L
N
R
S
T
N
WM301
SL30C
1.5
5
1.5
4
15