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Summary of Contents for BAC NEXUS NXF-0403 Series
- Page 1 Nexus Modular Hybrid Cooler ® RIGGING & ASSEMBLY INSTRUCTIONS...
- Page 2 Be sure to have a copy of the certified drawings available for reference. If you do not have a copy of these drawings, or if you need additional information about this unit, contact your local BAC Representative whose name and telephone number are located on a label on the unit. The model number and...
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Page 3: Table Of Contents
Table of Contents RIGGING & ASSEMBLY INSTRUCTIONS » NEXUS MODULAR HYBRID COOLER ® Introduction Safety Shipping Pre-rigging Checks Freeze Protection Water Treatment Location Warranties Unit Operation Unit Rigging & Assembly Lifting of a Factory-Assembled Multi-Module Unit Lifting of an Assembled Module Lifting and Assembly of the hCore Heat Transfer Technology Section ®... -
Page 4: Introduction
Refer to your submittal package for grounded field wiring poses the shipping option ordered when purchased. Contact your local BAC Representative for fire and electrocution hazards. more information. For the dimensions and weights of a specific unit or section, refer to the Failure to follow code could result certified drawings. -
Page 5: Pre-Rigging Checks
‰ Miscellaneous Items: All bolts, nuts, ‰ Component Wiring washers, and sealer tape required to assemble sections or component parts ‰ Spray Distribution System WWW. BALTIMOR EAIR C OIL.C O M are furnished by BAC and shipped with ‰ Solenoid Makeup Valve the unit. -
Page 6: Freeze Protection
Unit Operation Prior to start-up and unit operation, refer to the Nexus Modular Hybrid Cooler Operation & ® WWW. B A LTI MOREA I RCOI L.COM Maintenance Manual shipped with the unit and also available through your local BAC Representative. -
Page 7: Unit Rigging & Assembly
Number of Model Number Modules injury, death, and/or property damage. Lifts must be performed Installation of a Factory-Assembled Multi-Module Unit (See Figure 1a, page 2) by qualified riggers following BAC NXF-0403-x-x2 4'-0" 4'-2" 2'-1" published Rigging Instructions, and NXF-0403-x-x3 10'-0"... -
Page 8: Lifting Of A Factory-Assembled Multi-Module Unit
Lifts must be performed determined by the number of modules (see Figure 2). All wiring between modules is by qualified riggers following BAC completed at the factory. Care should be taken to avoid damaging protruding components published Rigging Instructions, and such as valves, piping connections, and wiring conduit. -
Page 9: Lifting Of An Assembled Module
Lifts must be performed Forklift or pallet jack movement is acceptable for single modules. Do not lift site by qualified riggers following BAC assembled multi-module units as one piece using forks. published Rigging Instructions, and Refer to “assembly of Multi-Module units... - Page 10 2. Lift the hCore Heat Transfer Technology Section onto the lower fan section using the specified lifting locations in Figure 3b. by qualified riggers following BAC 3. Align sections using drift pins and secure the two sections together using the factory- published Rigging Instructions, and supplied fasteners.
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Page 11: Lifting And Assembly Of The Hcore ® Heat Transfer Technology Section
Lifts must be performed by qualified riggers following BAC published Rigging Instructions, and generally accepted lifting practices. The use of a supplemental safety Figure 4 . Spray Section with Door Panel Removed sling may also be required if the 2. - Page 12 3. For Figures 1c and 1d: If it is still in place, remove the access panel from the spray section, saving the hardware. Install the water distribution system pipe between the CAUTION: Only personnel qualified two rubber couplings (see Figure 7). Slide the pipe into the bracket and ensure the to do so should undertake nozzles are pointing downward.
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Page 13: Assembly Of The Ipilot ® Control System Panel
Table 4 “H” dimension (see Figure 9c). death, and/or property damage. Lifts must be performed by qualified riggers following BAC iPilot Control Distance Between the Control ®... -
Page 14: Assembly Of Multi-Module Units
BAC 1. Prepare the second module’s spray water basin by applying sealer tape (BAC part published Rigging Instructions, and #554009). Where the sealer tape meets in the corners, be sure to overlap one inch. -
Page 15: Wiring Individual Modules After Assembly
Unit Rigging & Assembly Wiring Individual Modules after Assembly Assembly of Multi-Module Units The instructions below are applicable for configurations ordered as shown in Figures 1b, Wiring Individual Modules after 1c, and 1d on page 2. Refer to the Shipping section on page 2 for the order of rigging and Assembly assembly based on the shipping method ordered. - Page 16 Pull the wire around the corner to back (opposite the these hazards, you MUST follow basin side) and secure to the mounts with zip ties (provided by BAC). Pull the wire requirements for field wiring through the first notch from top and secure the wire to the hole with zip ties.
- Page 17 Unit Rigging & Assembly 3. Pull the fan communication wire through the first notch and the wire mount alongside with the component wire. Secure the wire with zip ties. The conductivity sensor, drain Wiring Individual Modules after valve, and fan communication wire run together to the control panel. See Figure 15 on Assembly page 14.
- Page 18 8. Route pump wire through grommet at top of spray water basin. Follow wire path toward the control panel end. Pull pump wire through top oblong hole with edge trim WARNING: Improperly installed on control panel mount channel. Pull each wire through individual cord grips at the and grounded field wiring poses bottom of control panel, then connect each wire to the correct terminal block.
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Page 19: Manifold And Leaving Process Fluid Temperature Sensor Installation
1. Refer to the Style 177 Victaulic Installation Manual for instructions on how to install the manifold. See your customer information packet or visit www.victaulic.com. NOTE: Series flow has two flexible 2. Place the 3” flexible coupling (Victaulic, BAC #202174M6) onto the hCore Heat ®... - Page 20 WARNING: Improperly installed 5. Install the connection outlet with the leaving process fluid temperature sensor port pointing at 45° toward unit. Run the wire through the cord grip and brackets. Install and grounded field wiring poses the bracket as need. This wire will be routed through the same path as the fan fire and electrocution hazards.
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Page 21: Fan Guard Installation
Unit Rigging & Assembly Fan Guard Installation Manifold and Leaving Process 1. Remove the fastener from the EC Fan System panel. The fastener will be reused in Fluid Temperature Sensor step 2. See Figure 24a. Installation 2. Place and align the fan guard mounting hole with the fan panel holes. Secure the fan Fan Guard Installation guard with fasteners from step 1. -
Page 22: Optional Sound Attenution
WARNING: Improperly installed Optional Sound Attenuation and grounded field wiring poses fire and electrocution hazards. Failure to follow code could result Discharge Sound Attenuation in death or serious injury. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/ state/national electrical codes. - Page 23 Unit Rigging & Assembly c. If equipment does not ship fully-assembled, install frame onto unit. Optional Sound Attenuation d. Clean foam tape surfaces with acetone, and install foam tape on the frame as shown. Foam Tape Overlap Apply foam tape CAUTION: Only personnel qualified to do so should undertake operation, maintenance and repair...
- Page 24 WARNING: Improperly installed Dishcharge Attenuation Assembly and grounded field wiring poses 1. Arrival at jobsite: fire and electrocution hazards. a. When discharge sound attenuation is provided, all components will ship loose and Failure to follow code could result must be field-installed by others. Parts include the following: i.
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Page 25: Optional Tapered Discharge Hood
Unit Rigging & Assembly Optional Sound Attenuation 1. ii. For lifting instructions and spreader bar dimensions, see Table 2 in the “Unit Rigging and Assembly” section. Optional Tapered Discharge Hood iii. Use the “H” dimension in Table 2 from the top of the unit, including discharge accessories. -
Page 26: Optional Positive Closure Dampers
WARNING: Improperly installed 1. To assemble: 1. 3. and grounded field wiring poses a. For units that ship fully assembled, tapered discharge hood can be installed before fire and electrocution hazards. lifting the unit onto its final location. When modules ship separately, the unit must Failure to follow code could result be assembled and lifted into place before installing tapered discharge hood. -
Page 27: Optional Ducting
1. To assemble: Unit Rigging & Assembly a. For units that ship fully assembled, positive closure dampers can be installed before lifting the unit onto its final location. When modules ship separately, the unit Optional Tapered Discharge must be assembled and lifted into place before installing positive closure dampers. Hood a. -
Page 28: Optional Uv System
Optional UV System The UV System has been designed to reduce bacterial growth. Please follow these assembly Insert into Nexus Rigging Manual, After “Ducting” instructions closely to ensure that the reliable system operation. CAUTION: Do not touch the glass portion of the bulb with bare hands. Always hold it at the ceramic ends. UV System Crossover Piping UV System Enclosure... - Page 29 Unit Rigging & Assembly Optional UV System Locking Tabs CAUTION: Only personnel qualified to do so should undertake Figure 44. Lamp connector operation, maintenance and repair iii. The UV bulb ships inside of the Nexus sump, adjacent to the UV system, to of this equipment.
- Page 30 Figure 47. UV System crossover piping for multi-module units b. UV System crossover piping for units that do not ship with modules fully-assembled i. After all modules are fully assembled onsite, remove the crossover piping sections from the shipping crate. These piping section(s) are comprised of 3’ to 6’ ¾” pipes with union connections on the ends.
- Page 31 Unit Rigging & Assembly Optional UV System CAUTION: Only personnel qualified to do so should undertake operation, maintenance and repair of this equipment. Proper care, personal protective equipment, procedures and tools must be used in handling, lifting, installing, operating, maintaining, and repairing this equipment to prevent personal injury and/or property damage.
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Page 32: Electrical Information
® Operation & Maintenance Manual for more set-up and operation details on the iPilot ® Control System available in the Customer Information Packet or through your local BAC Representative. Electrical Power Quality This unit requires clean electrical power to operate properly. Voltage and frequency should WARNING: Improperly installed be within 10% of the designed voltage for the unit. - Page 33 BAC Factory Authorized Parts: Guaranteed to Fit & Perform Contact your Local BAC Representative today for start-up assistance or to order parts! www.BaltimoreAircoil.com/repfinder WWW. BALTIMOR EAIR C OIL.C O M...
- Page 34 COOLING TOWERS CLOSED CIRCUIT COOLING TOWERS ICE THERMAL STORAGE EVAPORATIVE CONDENSERS HYBRID PRODUCTS PARTS & SERVICES w w w . B a l t i m o r e A i r c o i l . c o m 7600 Dorsey Run Road, Jessup, MD 20794 ›...
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