Table of Contents
Advertisement
1-2-3 and L1 connected to T1 and T6, L2 connected to T2 and T4, and L3 connected to T3 and
T5, rotation is proper. See diagram in terminal box cover.
The Daikin start-up technician will determine the phase sequence.
Care must be taken when attaching leads to compressor terminals.
Note: Do not make final connections to motor terminals until wiring has been checked
and approved by a Daikin technician.
Under no circumstances should a compressor be brought up to speed unless proper sequence and
rotation have been established. Serious damage can result if the compressor starts in the wrong
direction. Such damage is not covered by product warranty.
It is the installing contractor's responsibility to insulate the compressor motor terminals when the
unit voltage is 600 volts or greater. This is to be done after the Daikin start-up technician has
checked for proper phase sequence and motor rotation.
Following this verification by the Daikin technician, the contractor should apply the following
furnished items.
Materials required:
1. Loctite® brand safety solvent (12 oz. package available as Daikin part number
350A263H72)
2. 3M™ Co. Scotchfil brand electrical insulation putty (available in a 60-inch roll as Daikin
part number 350A263H81)
3. 3M Co. Scotchkote™ brand electrical coating (available in a 15 oz. can with brush as
Daikin Part Number 350A263H16)
4. Vinyl plastic electrical tape
The above items are also available at most electrical supply outlets.
Application procedure:
1.
2.
3.
4.
5.
6.
28
Connections to terminals must be made with copper lugs and copper wire.
Disconnect and lock out the power source to the compressor motor.
Using the safety solvent, clean the motor terminals, motor barrel adjacent to the
terminals, lead lugs, and electrical cables within the terminal 4OX to remove all dirt,
grime, moisture and oil.
Wrap the terminal with Scotchfil putty, filling in all irregularities. The final result
should be smooth and cylindrical.
Doing one terminal at a time, brush the Scotchkote coating on the motor barrel to a
distance of up to '/2" around the terminal and on the wrapped terminal, the rubber
insulation next to the terminal, and the lug and cable for approximately 10". Wrap
additional Scotchfil insulation over the Scotchkote coating.
Tape the entire wrapped length with electrical tape to form a protective jacket.
Finally, brush on one more coat of Scotchkote coating to provide an extra moisture
barrier.
CAUTION
Centrifugal Chillers
D-EIMWC00804-14EN
Advertisement
Table of Contents
