ZL-25T 25 Ton Industrial FRP Counter Flow Cooling Tower - HVAC EPC Contractor
The ZL-25T FRP counter flow cooling tower delivers 87.92 kW heat rejection at 25 refrigeration tons with 19.51 m3/h water flow rate. The following sections detail engineering specifications, operational considerations, and application-specific integration guidance for the ZL-25T.
The ZL-25T cooling tower is typically integrated into HVAC systems as the condenser water cooling source for water-cooled chillers. The 19.51 m3/h flow rate matches the condenser water requirement of a 29 kW chiller operating at standard 5°C condenser water range. System integration includes: chilled water pump (typically sized 1.2x flow rate for safety margin), condenser water pump (matching tower flow), plate heat exchanger or direct integration, expansion tank, chemical water treatment system, and BMS interface for monitoring. The ZL-25T's 87.92 kW heat rejection capacity supports approximately 2 RT of chiller capacity when paired with a standard efficiency chiller (COP 4.5). For high-efficiency chillers (COP 6.0+), the ZL-25T can support 2 RT due to reduced condenser heat load.
The ZL-25T cooling tower requires a 380V 3-phase 50 Hz power supply for the 0.75 kW fan motor, with IP55 Class F insulation suitable for outdoor installation. Power supply sizing: motor full load current approximately 1.5 A at 380V, recommended breaker sizing 2.25 A, and wire gauge minimum 2.5 mm² copper for runs under 30 meters. For sites with 480V 3-phase 60 Hz supply (North America), a step-down transformer is required. Variable frequency drive (VFD) compatibility is standard for the 0.75 kW motor, enabling 30-80% energy savings during shoulder seasons. VFD installation requires EMI filter to comply with EMC directives and motor bearing insulation to prevent shaft current damage. Soft starter is recommended for grid-connected installations to limit inrush current.
Foundation design for the ZL-25T cooling tower requires careful consideration of operating weight, wind load, and seismic requirements. Concrete pad specifications: minimum 100mm thick reinforced concrete pad with #4 rebar at 300mm centers, surface area 2190mm × 2190mm square (approximately 2.5 kg/m² distributed load). Anchor bolt specifications: M12 stainless steel expansion anchors at 600mm centers, embedded 80mm into concrete. For seismic zones 3 and 4, additional seismic tie-down points are required per ASCE 7. Wind load considerations: at 50 m/s design wind speed, the ZL-25T requires additional guy wire bracing for towers installed above 20 meters elevation. Foundation inspection and engineer sign-off required before tower installation.
Standard project schedule for ZL-25T cooling tower installation: week 1-2: order placement and production scheduling; week 3-5: factory production and quality testing; week 6-7: shipping transit from Dongguan to project site; week 8: site delivery and crane installation; week 9: piping and electrical connections; week 10: water fill, chemical treatment, and commissioning; week 11: performance verification and operator training. Total project duration: 11 weeks from order to operational handover. For expedited orders, the schedule can be compressed to 7 weeks with expedited production and air freight shipping, at additional cost of 15-20% of tower price. Critical path items: crane availability and site access (typically book 4 weeks in advance), water treatment chemical procurement, and certified commissioning technician scheduling.
ZILLION provides comprehensive documentation for LEED v4 and other green building certification submissions involving the ZL-25T cooling tower. Available documentation includes: (1) Product Declaration with material content disclosure, (2) VOC emissions certificate showing zero off-gassing from FRP shell, (3) Recycled content certification (FRP shell contains 15-20% recycled glass fiber), (4) End-of-life disassembly instructions for LEED Materials and Resources credits, (5) Water consumption calculation methodology for LEED Water Efficiency credits (drift loss + evaporation + blowdown), (6) Energy consumption documentation showing 0.75 kW fan power for LEED Energy and Atmosphere credits, (7) Regional materials sourcing information (Dongguan, Guangdong for Asian projects), and (8) Indoor air quality certificate showing no off-gassing in occupied space applications.
Standard submittal package for ZL-25T cooling tower includes: (1) Product data sheet with full specifications and dimensions; (2) CTI thermal performance certification showing 87.92 kW heat duty at design conditions; (3) ISO 9001:2015 quality management certification; (4) CE Declaration of Conformity for European installations; (5) Material safety data sheets (MSDS) for FRP shell and PVC fill media; (6) Installation, Operation, and Maintenance (IOM) manual with commissioning procedures; (7) Structural calculation report signed by licensed engineer for local code compliance; (8) Electrical schematic and motor specifications; (9) Recommended spare parts list with pricing; (10) Warranty terms and conditions. Typical submittal review and approval time: 2-4 weeks depending on project specification requirements. Engineer-of-record stamp required for structural documents in most jurisdictions.