30 Ton Industrial FRP Counter Flow Cooling Tower - HVAC EPC Contractor
Engineering Standards and Certifications
The ZL-30T cooling tower is designed, manufactured, and tested in accordance with the following authoritative standards supporting HVAC EPC Contractor applications:
The ZL-30T is one of 10 active ZL-30T configurations covering HVAC EPC Contractor applications plus 10 buyer perspectives across 11 cooling capacities (10T to 500T). Engineers evaluating cooling options can compare related configurations:
| Parameter | Value |
|---|---|
| Model | ZL-30T |
| Cooling Capacity | 30 RT (105.5 kW heat rejection) |
| Water Flow Rate | 23.40 m3/h (390 L/min) |
| Cooling Range | 5C (37C inlet to 32C outlet at design WB 27C) |
| Approach to Wet-Bulb | 5C at design conditions |
| Fan Motor | 0.75 kW (1 HP) 380V 3-phase 50Hz |
| Fan Diameter | 770 mm axial |
| Air Flow Rate | 230 CMM (138,000 m3/h) |
| Head Loss at Design Flow | 16 kPa |
| Tower Dimensions (H x D) | 2000 x 1650 mm |
| Dry Weight | 116 kg |
| Operating Weight (filled) | 530 kg |
| Noise Level | 65 dB(A) at 1 m |
| Tower Body Material | FRP (Fiberglass Reinforced Plastic) |
| Fan Blade Material | Aluminum alloy |
| Configuration | Counter Flow Square |
| Voltage | 380V 3-phase 50Hz (customizable 220V/415V) |
| Certifications | CE / ISO 9001:2015 |
| Warranty | 1 year (consumables excluded) |
Table of Contents:
The ZL-30T FRP counter flow cooling tower delivers 105.51 kW heat rejection at 30 refrigeration tons with 23.4 m3/h water flow rate. The following sections detail engineering specifications, operational considerations, and application-specific integration guidance for the ZL-30T.
The ZL-30T cooling tower is typically integrated into HVAC systems as the condenser water cooling source for water-cooled chillers. The 23.4 m3/h flow rate matches the condenser water requirement of a 35 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-30T's 105.51 kW heat rejection capacity supports approximately 3 RT of chiller capacity when paired with a standard efficiency chiller (COP 4.5). For high-efficiency chillers (COP 6.0+), the ZL-30T can support 2 RT due to reduced condenser heat load.
The ZL-30T 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-30T 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 2255mm × 2255mm square (approximately 2.65 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-30T 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-30T 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-30T 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-30T cooling tower includes: (1) Product data sheet with full specifications and dimensions; (2) CTI thermal performance certification showing 105.51 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.
The ZL-30T (30 ton FRP counter flow cooling tower) is one of 110 ZILLION cooling tower configurations covering 10 buyer perspectives across 11 cooling capacities. The following cross-references help hvac epc contractor buyers compare related configurations and access supporting engineering resources:
The ZL-30T cooling tower is engineered in accordance with industry-recognized standards. The following authoritative sources establish the technical baseline for hvac epc contractor applications:
A mid-scale HVAC EPC contractor delivered a ZL-30T installation for a 3,000 m² commercial building retrofit. The project followed a 10-week schedule: 2 weeks engineering submittal, 4 weeks production, 2 weeks shipping, 2 weeks site installation and commissioning. The contractor submitted complete submittal package including CTI thermal performance certification, ISO 9001 documentation, and CE Declaration. The ZL-30T integrated into the existing chiller plant with ASHRAE 90.1 compliant controls.
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This page covers the essential information hvac epc contractor buyers need when evaluating the ZL-CT series for their application. The following key takeaways summarize the most critical specifications, performance metrics, and engineering considerations:
The following questions address the most common inquiries from hvac epc contractor buyers evaluating the ZL-CT series (30 ton FRP counter flow cooling tower) for their application. Each answer references the technical specifications, performance metrics, and compliance documentation applicable to this configuration:
Standard submittal package: (1) Product data sheet with full specifications, (2) CTI thermal performance certification showing kW heat duty, (3) ISO 9001:2015 quality management certification, (4) CE Declaration of Conformity, (5) Material safety data sheets, (6) IOM manual, (7) Structural calculation report (engineer-stamped), (8) Electrical schematic, (9) Recommended spare parts list with pricing, (10) Warranty terms.
Foundation design: 150mm thick reinforced concrete pad with #5 rebar at 300mm centers. Anchor bolts: M16 stainless steel expansion at 600mm centers. Surface area: tower diameter × 1.1 minimum. For seismic zones 3 and 4: additional seismic tie-down points per ASCE 7. Engineer-of-record stamp required.
Standard: 10-16 weeks from order to operational handover. Breakdown: 2-3 weeks engineering submittal, 4-6 weeks production, 2-3 weeks shipping, 2-4 weeks site installation and commissioning. Urgent orders: 8-10 weeks at 20% premium with expedited production.
Standard integration: on/off fan motor starter with thermal overload. VFD-compatible (30-80% energy savings during shoulder seasons). BMS interface: Modbus RTU/TCP, BACnet MS-TP/IP, LonWorks. ZILLION provides integration documentation including register maps and BACnet PICS for all 110 ZL-CT variants.
Integration via Modbus RTU/TCP or BACnet MS-TP/IP. Standard register map: leaving water temperature (registers 0-1), water flow rate (2-3), fan motor current (4-5), fan vibration (6-7), basin water level (8-9), basin temperature (10-11), makeup water flow (12-13), conductivity (14-15). ZILLION provides BACnet PICS document.
LEED v4 documentation: (1) Product Declaration with material content disclosure, (2) VOC emissions certificate, (3) Recycled content certification (FRP shell 15-20% recycled glass fiber), (4) End-of-life disassembly instructions, (5) Water consumption calculation methodology, (6) Energy consumption documentation, (7) Regional materials sourcing.
The ZL-30T cooling tower is also designed in accordance with the following additional industry standards that complement the core technical baseline: