WARNING: HIGH VOLTAGE
Electrical power must be OFF before and during inspection or service. Ensure
electrical supply to the enclosure is disconnected, locked out and tagged out.
Personnel injury or damage to equipment can occur if all power upstream from
the enclosure is not fully disconnected prior to opening.
Before commissioning the drive and putting it into service, make sure that the
motor and all driven equipment are suitable for operation throughout the speed
range provided by the drive. The drive can be adjusted to operate the motor at
speeds above and below the speed provided by connecting the motor directly
to the line power.
IF 1619 • 05/18
Copyright
©
2018, Eaton’s Crouse-Hinds Division
Page 2
1. SAFETY INSTRUCTIONS
The ACE explosionproof VFD should be installed, inspected and maintained by
qualified and competent personnel.
1.1 APPROVED APPLICATIONS
The ACE explosionproof VFD is classified Class I, Divisions 1 & 2 for use in
hazardous environments, and is designed to match the strict requirements of
pumps, compressors, fans, separators and mixers in such process industries as:
• Oil and gas/refineries
• OEM skid builders
• Petrochemical
• Water/wastewater
• Pharmaceutical
• Food and beverage manufacturing
1.2 ELECTRICAL SAFETY
WARNING
To avoid cooling system malfunction, cooling system failure and personnel
injury, close and seal the enclosure before energizing.
WARNING
To avoid cooling system malfunction, cooling system failure and personnel
injury, remove all loose debris and deposits before energizing.
These blowers comply with EN 61800-5-1 safety standards.
The blower is non-serviceable. Refer to ACE KIT 3, Section 8.3, for replacement
instructions.
1.4 HOT SURFACES
1.5 ENCLOSURE SAFETY
WARNING
To avoid personnel injury and property damage, clean dirt and debris from
flat ground joint surfaces before the cover is closed. NEVER energize this
equipment if the flat ground joint has been scratched or damaged.
All pipe threaded connections into the enclosure require a minimum of five (5)
full threads of engagement. All straight threaded connections into the enclosure
require a minimum of eight (8) full threads of engagement. Personnel injury
or equipment damage can result from threaded joints containing less than the
minimum thread engagement required.
All unused conduit openings must be plugged. UL Listed plug must engage a
minimum of five (5) full threads and be a minimum of 1/8” thick.
Conduit sealing fittings MUST be installed in each attached conduit run (within
eighteen (18) inches of the enclosure) to comply with the latest edition of the
National Electrical Code
®
(NEC) plus any other applicable code.
The cover must be properly fastened to the body with all cover bolts torqued to
40-45 ft.-lbs. (19.2-21.5 N-m). Personnel injury or equipment damage can result if
the flat joint flame path is not properly fastened.
WARNING: BURN HAZARD
To avoid personnel injury, use appropriate personnel protective equipment
before handling and operating the device.
CAUTION
To ensure safety and VFD performance, grounding provisions for the
enclosure, blower and VFD must be made before operating.
1.3 BLOWER SAFETY
Blower intake
WARNING: HIGH SPEED
To avoid personnel injury, DO NOT handle the blower or service the enclosure
while energized.
Filter shrouds
WARNING
To avoid cooling system malfunction and personnel injury, be sure to torque
the first eight (8) cover screws sequentially per Figure 1 before torquing the
remaining screws.
