CIAT Climaciat Instruction Manual page 19

ƒ DALHANDER dual speed or pole-changing motor, 6 terminals
These diagrams apply to three-phase, 3000/1500 rpm and 1500/750 rpm motors.
1U 1V
2U 2W
ƒ Dual speed motor: two separate 2x3 terminal windings
These diagrams are used for 1500/1000 rpm three-phase motors.
1U1
1U2
2U1
2U2
These connection diagrams are supplied in each terminal box.
ƒ B - Unit with proximity switch:
- The motor(s) is/are prewired.
- The connection is to the switch terminal block
ƒ Authorised tightening torques and maximum terminal connection sections:
- See § 7.4.1 AC motor
ƒ C - Unit with frequency inverter
- In the interest of shipping safety, the inverters are not installed at delivery. Fit the inverter and the protective cover on the
support provided at the front on the utilities side. Connect the cables to the inverter in accordance with the instructions in
the inverter section.
- Follow the predefined wiring (see inverter manual).
- Two protective conductors must be connected in parallel.
- For machines supplied with a control unit:
- Unwind the cables(s) fixed to the motor or the inverter.
- Route them to the main unit by sliding them into the lower raceways (before assembling the blocks) or upper raceways
(depending on the position of the fan in the unit). Use the wall feedthroughs in the block concerned.
- Connection: see wiring diagram.
ƒ D- Direction of rotation
- Danger Risk of fan damage
- For a correct direction of rotation with a 3-phase motor, make sure that terminals U1, V1 and W1 correspond to phases
L1, L2 and L3 respectively.
- If necessary, swap the power supply cables at the inverter output to change the direction of rotation. (e.g. U1 with V1).
ƒ E- Motor protection
- All the motors have PTC type internal heat protection.
- This thermistor must be connected to the motor's control safety chain.
ƒ F- Starting type
- Always refer to the current standards in the country of installation.
L1
1U
2U 2W
1W 1V
2V
L3
1W
L1
2U
2V
1U 1W
2W 1V
L3
L1
1U1
1W1
L3
1W1 1V1
L1
2U1
1W2 1V2
2W1
2V1
2W1
2W2 2V2
L3
2U 2V 2W
1U 1V 1W
L1 L2 L3
L2
2U 2V 2W
1U 1V 1W
2V
L1 L2 L3
L2
2U1 2V1 2W1
1U1 1V1 1W1
1V1
L1 L2 L3
L2
2U1 2V1 2W1
1U1 1V1 1W1
2V1
L1 L2 L3
L2
EN - 17
2U 2V 2W
1U 1V 1W
1 2 1 2 1 2
L1 L2 L3
2U1 2V1 2W1
1U1 1V1 1W1
1 2 1 2 1 2
L1 L2 L3
EN