COOK QMXD 설치, 운영 및 유지보수 매뉴얼 - 페이지 5

{카테고리_이름} COOK QMXD에 대한 설치, 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. COOK QMXD 13 페이지. Mixed flow inline

페이지 인쇄
COOK QMXD 설치, 운영 및 유지보수 매뉴얼
3 Phase, 9 Lead Motor
3 Phase, 9 Lead Motor
Y-Connection
Low Voltage
High Voltage
208/230 Volts
460 Volts
4 5 6
4 5 6
7 8 9
2
3
1
1 2
3
7
8
9
L 1 L 2 L 3
L 1 L 2 L 3
To reverse, interchange any two line leads.
2 Speed, 1 Winding, 3 Phase Motor
High Speed
1
Together
2
3
Motor
L 1
4
L 2
5
Line
6
L 3
To reverse, interchange any two line leads. Motors require
magnetic control.
2 Speed, 2 Winding, 3 Phase
Low Speed
T
3
Low Speed
T
2
Low Speed
T
1
Motor
High Speed
T
11
High Speed
T
12
High Speed
T
13
To reverse:
High Speed - interchange leads T
Low Speed - interchange leads T
Both Speeds - interchange any two line leads.
Typical Wiring Path for Roof Mounted Units
For sizes 135–600, route conduit under motor cover
between the motor support rails and out to enclosure as
shown in Figure 1 below.
QMX IO&M
3 Phase, 9 Lead Motor
Delta-Connection
Low Voltage
High Voltage
208/230 Volts
460 Volts
8
9
7
7 8 9
6
4
5
3
1
2
4 5 6
1 2
L 1
L 2
L 3
L 1
L 2
Low Speed
L 1
1
L 2
2
3
L 3
Motor
4
Open
5
6
L
1
L
2
L
3
and T
.
11
12
and T
.
1
2
Figure 1
Weather Cover
Size 135-600, Run
Liquidtite Between
Weather Cover and Unit
Liquidtite
For sizes 90–120, route conduit through holes in the sides of
the motor support saddle as shown in Figure 2 below.
Figure 2
3
L 3
90-120, Run
Liquidtite Through
Line
Holes in Saddle

Wheel Rotation

Test the fan to ensure the rotation of the wheel is the same
as indicated by the arrow marked Rotation.
Line
115 and 230 Single Phase Motors
Fan wheel rotation is set correctly at the factory. Changing
the rotation of this type of motor should only be attempted by
a qualified electrician.
208, 230 and 460 3 Phase Motors
These motors are electrically reversible by switching two
of the supply leads. For this reason, the rotation of the fan
cannot be restricted to one direction at the factory. See Wiring
Diagrams for specific information on reversing wheel direction.
NOTICE! Do not allow the fan to run in the wrong
direction. This will overheat the motor and cause
serious damage. For 3-phase motors, if the fan is
running in the wrong direction, check the control
switch. It is possible to interchange two leads at this
location so that the fan is operating in the correct
direction.
NOTICE! Do not allow the fan airflow to go in the
wrong direction.
5
Enclosure May Be Located
in Either Corner
(Liquidtite Not Shown)
QMX
Correct Airflow
QMX-XP
QMX-HP
Direction
B51092-005