Data Aire DAFC 06, Инструкция по установке, эксплуатации и обслуживанию

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AIR-COOLED FLUID COOLER
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Air-Cooled Condenser Manual
flaking of insulation and/or metal parts. Pitting or melting of connecting surfaces is
a sign of arcing due to a loose or otherwise poor connection. Parts which show
evidence of overheating or looseness should be replaced if damaged. Tighten
screws or bolts and nuts to component manufacturer’s torque specifications.
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Contactors should be kept clean and free from dust and other accumulated
deposits. Dust can be removed from the contactor by blowing with dry air that is
free from lubricants.
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Check for hairline cracks in contactors, transformer, auxiliary contact mounting
bracket, etc.
7.5 Fuse Replacement
WARNING: Turn OFF all electric facility power sources to the unit
before servicing or maintaining this equipment.
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Use lock-out tag-out protection.
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Check replacement fuse to the same size and type as the original fuse. Use only
U.L. and CSA approved fuses.
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Open electrical control box panel.
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Use a voltmeter to confirm there is no power to the unit.
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Remove faulty fuse with fuse puller, fuse removal tool or equal.
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Handle new fuse with care. Do not drop or throw.
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Install new fuse into fuse holder.
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Align fuse end with end of fuse holder clips.
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Turn ON power and verify that operation has been restored.
7.6 Axial Fans with Electronically Commutated Motor
Axial fan(s) with Electronically Commutated (EC) motors are standard equipment on all
gForce GHRC and GHCU condensers. Axial fan(s) with EC motors are maintenance free and
only require visual inspection. The motors are sealed, have maintenance free ball bearings
and permanent lubrication. The only acceptable service is replacement.
If one of the fan internal safeties are triggered, the motor will stop (via electronic controls).
Once the fan is stopped via internal controls, the motor will not restart automatically. The
internal electronic controller must be reset, by cycling the main electrical power supply.
Switched the electrical power to OFF for a minimum of sixty (60) seconds and then turned
back on.
If for any reason the rotor is blocked, the motor will electronically switch off. Before looking for
blockage, make certain to disconnect all electrical power sources to the unit. Once the
blockage is cleared the motor will automatically restart when powered is turned back on.
EC motors have an under-voltage protection. If the electrical power supply voltage falls below
150 VAC/3Ø (for 208-230 VAC volt motors) 290 VAC/3Ø (for 380-480 VAC motors) for a
minimum of five (5) seconds, the motor will automatically switch off.