D20, D20VSD, D20TD, D20TDVSD-C
Feb ‘14
- 11
The Electrician is to bring
power to the Unit at the
Electrical Panel accessible
by means of opening the
Unit Side Door and Control
Box Cover as shown at
right.
Refer to the enclosed
sales drawing and
electrical schematic in
determining the correct
Disconnect / Breaker and
Wire size.
Installation – Electrical (cont’d)
Wiring must be done in a manner that the full Motor nameplate voltage +/- 10% is available at the Motor terminals
during start-up. Contact your local Distributor or Service Centre if additional information is needed.
The Warranty that exists on the Electric Motor is that of the original manufacturer. In the event of a Motor failure,
contact your DV Systems Distributor or Service Centre for the location of the nearest authorized Motor Service
Centre.
It is critical that the Motor and Air End in the Rotary Screw Unit be turning in the correct manner. Irreparable
damage will be done if the Unit rotates in the opposite direction.
This unit equips with Advanced Phase Detection which prevents unit from rotating in the reversed direction. If the
following error is visible on the Screen and the Unit will not start, simply switch power leads L1 and L3. Press the
‘Reset’ key on the Controller to reset the error message.
E:0090 Phase Sequence
Note: If the Motor is replaced or Motor Leads are re-wired, visually check for correct Motor Rotation before
installing the belts.
Power Cable
To ensure that the Unit operates at optimum
temperatures, a Cooling Fan is located on the top
of the Unit to draw warm air from the Cabinet
Enclosure. It is imperative that the Fan rotate in
the correct direction.
A label inside the Unit as shown indicates the
proper Fan rotation.
If the Cooling Fan rotation is incorrect, change
two of the Fan leads connected to the bottom of
the Starter.
Wiring from
Cooling Fan
Wires to Starter
to change Fan
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