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NEXUS
®
MODULAR HYBRID COOLER
Start-Up & Operation
1.
hCore
®
Heat Transfer Technology:
Exclusive closed loop heat transfer section with
stainless steel construction that offers high corrosion-resistance.
2.
Fluid Connections:
Fewest field piping connections due to innovative, easy-to-install
manifold with grooved connections.
3.
iPilot
®
Control System:
Automatically controls equipment operation according to your
specific needs, including energy savings desired, water savings desired, and water
management.
4.
EC Fan System:
This Electronically Commutated (EC) Fan System includes a direct-
drive radial fan and a variable-speed EC motor.
5.
Fan Guard:
Protects operators and blocks large debris.
6.
Hinged EC Fan System Access Panel:
Allows for easy access to the EC Fan System.
7.
Spray Water Basin:
Small, workbench-height basin that collects recirculating spray
water.
8.
Basin Access Cover:
Allows easy access inside the spray water basin for inspection
and service.
9.
Basin Interior Access Panels:
Allows access to the water diverter and air baffle.
10.
Spray Pump:
Continuously circulates water through the system to meet cooling
demand. There is also an integral strainer to the spray pump which prevents large
debris from entering pump and spray distribution. Constructed of stainless steel for
corrosion-resistance.
11.
Riser Pipe:
Directs water to the spray distribution.
12.
Water Distribution System:
Evenly wets the hCore
®
Heat Transfer Technology for
optimal thermal performance and reliability.
13.
Water Diverter:
Creates water turbulence in basin to minimize maintenance.
14.
High and Low Level Switches (Not Shown):
Sends water level signals for monitoring
and control.
15.
Mechanical Make-up Valve (Not Shown):
Provides fresh water to the unit to replenish
water that evaporates through the evaporative cooling process and is bled from the
basin.
16.
Solenoid Make-up Valve (Not Shown):
Normally closed valve controls when water is
sent to the basin during wet operation.
17.
Drain Valve:
This motorized valve is conductivity-controlled and is used to periodically
drain water to maintain water quality. It is also used to fully drain the basin to
minimize maintenance.
18.
Conductivity Sensor (Not Shown):
Sends signal that controls drain valve based on
water conductivity.
19.
Outside Air Temperature Sensor (Not Shown):
Sends signal that controls fan and
pump operation based on user inputs.
20.
High Efficiency Drift Eliminators:
Ensures that recirculating water remains in the unit
during operation.
21.
Spray Distribution Access Panel:
Allows for access to spray branches, nozzles, and
drift eliminators
Start-Up and Operation
Nexus
®
Modular Hybrid Cooler
DANGER:
Rotating equipment
will cause severe personal injury
or death to persons who come in
contact. Do not perform any service,
maintenance, or inspection on or
near the fan(s), motor(s), or inside
the unit without first ensuring
that the fans and pump motors
are disconnected, locked out, and
tagged out.