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Inspection & Maintenance
basin. Use caution when walking inside this equipment.
•
Inspect the basin monthly. Remove trash or debris that may have accumulated in the basin or on the strainer.
•
Quarterly, or more often, if necessary, drain, clean, and flush the entire basin with fresh water. This will remove the
sediment, which can collect in the basin during operation. If not removed, sediment can become corrosive and cause
deterioration of the protective finish of metallic basins.
When flushing the basin, leave the strainer in place to prevent the sediment from re-entering the spray pump.
o
Remove the strainer after the basin has been flushed.
o
Clean and replace the strainer before refilling the basin with fresh water.
o
Remove accumulated dirt and debris from the water guards.
o
•
Adjust the float to maintain the design operating level. See Table 3.
EC Fan System
For units supplied with electronically commutated (EC) motors, very little maintenance is required. As the fans are provided
with sealed bearings, lubrication is not required.
•
With the fans running, check for any unusual noises or vibrations.
•
Thoroughly inspect the fans for damaged or deteriorated fan blades and replace the fan system as required.
Electronically Commutated (EC) Fan Motors
An EC motor has been designed to accept an AC power supply and use onboard electronics to operate similarly to a
permanent magnet brushless DC motor. All EC motors provided by BAC have an onboard speed control module, eliminating
the need for VFDs. To optimize thermal efficiency, all fans will ramp up or down simultaneously.
Unit Mounted Electrical Panel
All EC motors are factory-wired to the unit-mounted electrical control panel. This panel provides a single location for a 3-phase
power connection, a 4-20 mA motor control signal, and an alarm feedback signal. Two LED lights, one for the ALARM (red)
and one for the OVERRIDE (yellow), are provided on the outside of the control panel. An override switch (ON/OFF) is provided
on the enclosure, allowing the operator to override an alarm condition and continue equipment operation.
Alarm Signal
The alarm light indicator (red) on the control panel indicates that one or more fans have had an event that is preventing them
from operating correctly. When the indicator illuminates, all fans will operate at a factory pre-set emergency speed, which is
around 40% of full speed.
Vertex™ Evaporative Condenser Operation & Maintenance Manual – Component Maintenance Procedures
: Openings and/or submerged obstructions may exist in the bottom of the
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