DIVERSITECH D MISTER, Руководство по эксплуатации и техническому обслуживанию

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10
Connecting Power to Motor
To connect motor for proper voltage and rotation, refer to the connection diagram on the nameplate
or inside the terminal/conduit box.
Table B - Minimum Wire Sizes for Single Phase Motors
Motor 25 Feet 50 Feet 100 Feet 150 Feet 200 Feet
HP 115V 230V 115V 230V 115V 230V 115V 230V 115V 230V
1.0 10 14(16)* 6 12 4 10 2 8 1 6
1.5 8 14 6 12 3 8 1 6 1/0 6
2.0 8 14 4 10 2 8 1/0 6 2/0 4
3.0 6 12 3 8 1/0 6 2/0 4 4/0 3
5.0 - 10 - 6 - 4 - 2 - 1
7.5 - 8 - 6 - 3 - 1 - 1/0
10.0 - 8 - 4 - 2 - 1/0 - 2/0
*Type S, SO, SJ, SJO, etc. Flexible cable wire sizes. See NEC Article 400 for ampacity.
NOTE: NEC Article 310-5 --- Minimum conductor size for general wiring at 115-440VAC is No. 14AWG. Above wire sizes based
on approximate 5% voltage drop during starting; copper conductors; and 75° C type THHW, THW, THWN, RH, RHW insulation,
etc. For aluminum wire, increase two wire size steps minimum. See NEC Article 310 for ampacities of aluminum conductors.
All aspects of the installation must conform to the requirements of the NEC, including Article 430 (Motor circuits and
Controllers), and all local codes.
Wherever possible, each motor should be powered from a separate circuit of adequate capacity
to keep voltage drop to a minimum during starting and running. Increase wire size where motor is located a distance from the power
source. Wire size must be adequate to minimize voltage drop during starting and running. Refer to Tables A and B for suggested wire
sizes. Distances shown are one-way between source and motor. Portable cords, if used, should be as short as possible to minimize
voltage drop. Long or inadequately sized cords, especially on hard starting loads, can cause motor failure. All electrical connections in
system must be secure to prevent voltage drop and localized heating.
!
WARNING
• Determine direction of rotation before connecting driven equipment to prevent damage.
• To prevent bearing damage, do not strike shafts with hammer or other tool.
• If the motor has been damp or wet, then have motor serviced by a qualified motor repair shop before operating.
Recommended Maintenance
Remove dirt accumulations in and around vent openings, by vacuuming. Dirt accumulations can cause motor overheating and a fire
hazard. Enclosed motors can be cleaned with an air jet; wear eye protection.
Periodically inspect the installation. Check for dirt accumulations; unusual noises or vibration; overheating; worn or loose couplings,
sheaves and belts; high motor current; poor wiring or overheated connections; loose mounting bolts or guards; and worn motor starter
contacts.
Dayton ball-bearing motors without lubrication provision do not require periodic relubrication. Where motor has provision for bearing
lubrication, lubricate as follows:
1. After stopping motor and disconnection power, thoroughly wipe the housing around both of the motor bearings, filler and drain plugs
(on TEFC) ratings, remove fan cover for access to plugs).
2. Remove filler and drain plugs and install a 1/8” pipe thread lube fitting in filler hole.
3. Using a low pressure grease gun, pump new grease into motor until it appears at the drain hole.
4. Run motor for several minutes to discharge excess grease. Shut motor OFF, replace filler and drain plugs, and reinstall fan cover.
See Table C for suggested regreasing intervals.