Donaldson Torit WSO 20, Installation And Operation Manual

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13
Donaldson Company, Inc.
Electrical Connection
(WSO 20, 25-1, and Powered WSO 25-2,
25-3)
Electrical service or
maintenance work must be
performed by a qualified electrician and
comply with all applicable national and local
codes.
Turn power off and lock out electrical
power sources before performing service or
maintenance work.
Do not install in classified hazardous
atmospheres without an enclosure rated for
the application.
WSO mist collectors must be equipped with a customer-
supplied safety disconnect with short circuit protection,
contactors, and overload protection. Complete the
wiring as shown in Motor Starter Wiring.
1FU
2FU
3FU
1M
1OL
1T2
1T3 fan
motor
Disconnect
L1
L2
L3
1T1
1L1
1L2
1L3
208/230/460/575/60/3
Motor Starter Wiring
Motor Starter Control Box
Mount the motor starter control box in a convenient
location. For the WSO 20 and 25-1, an electrical
knockout, sized for 1/2-in fittings, is provided on the left-
hand side of the blower cabinet. Increase knockout size
using a drill as required.
1. Using the wiring diagram supplied inside the control
box and the instructions on the motor decal, make
the connections to the blower motor.
Note: If the unit is supplied with an optional
junction box, wire the motor starter to the
terminal strip located inside the junction box
according to the wiring diagram supplied
with the junction box.
2. Turn the blower motor ON then OFF and check for
proper rotation: clockwise for WSO 25-1, powered
WSO 25-2 and 25-3 and see rotation arrow on the
motor’s mounting plate for WSO 20.
To reverse rotation, three-phase power supply: Turn
electrical power OFF at source, properly lock-out
power, and switch any two leads on the output-side
of the blower motor starter.
Do not interchange a power lead
with the ground wire. Severe
personal injury or equipment damage may
result.
Do not look into fan outlet to determine
rotation. View the fan rotation from the back of
the motor.
Check that the exhaust plenum is free of tools
or debris before checking blower/fan rotation.
Stand clear of exhaust to avoid personal injury.
3. Ground cabinet according to local electric codes.