ZL-20T 20 Ton Industrial FRP Counter Flow Cooling Tower for Data Center
The ZL-20T cooling tower is designed, manufactured, and tested in accordance with the following authoritative standards supporting Data Center applications:
The ZL-20T is one of 9 active ZL-20T configurations covering Data Center applications plus 10 buyer perspectives across 11 cooling capacities (10T to 500T). Engineers evaluating cooling options can compare related configurations:
Complete ZILLION Cooling Tower Series (10T to 125T)
ZL-20T 20 ton cooling tower (70.35 kW) - higher capacity
Cooling Tower Vs Air Cooled Chiller How To Choose The Right Industrial Cooling Solution
Water Cooled Chiller Cooling Tower System Complete Configuration Guide
| Parameter | Value |
|---|---|
| Model | ZL-20T |
| Cooling Capacity | 20 RT (70.35 kW heat rejection) |
| Water Flow Rate | 15.62 m3/h (260 L/min) |
| Cooling Range | 5C (37C inlet to 32C outlet at design WB 27C) |
| Approach to Wet-Bulb | 5C at design conditions |
| Fan Motor | 0.55 kW (0.75 HP) 380V 3-phase 50Hz |
| Fan Diameter | 635 mm axial |
| Air Flow Rate | 160 CMM (96,000 m3/h) |
| Head Loss at Design Flow | 14 kPa |
| Tower Dimensions (H x D) | 1900 x 1180 mm |
| Dry Weight | 67 kg |
| Operating Weight (filled) | 300 kg |
| Noise Level | 60 dB(A) at 1 m |
| Tower Body Material | FRP (Fiberglass Reinforced Plastic) |
| Fan Blade Material | ABS plastic |
| 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:
Data center operators track Power Usage Effectiveness (PUE) = total facility power / IT equipment power. ZL-20T cooling system power (0.55 kW fan + 1.5 kW pump = 1.87 kW for 10 RT load) represents 5-8% of total facility power for a typical data center. Compared to air-cooled CRAC units at 12-15% of facility power, ZL-20T reduces PUE contribution from 1.15 to 1.08 — supporting PUE target <1.30 for efficient data centers.
Data center operators track Water Usage Effectiveness (WUE) = liters/kWh IT load. ZL-20T drift loss 0.005% of circulation flow versus industry 1-3% delivers 30% water reduction. For a 1 MW data center with 10 RT ZL-20T (10 units), annual water savings vs. standard CT: 1.36 million liters. WUE improvement supports green data center metrics and reduces water-stress risk for hyperscale deployments.
Edge data centers and micro data centers (10-50 kW IT load) use ZL-20T for primary cooling. The 70.35 kW heat rejection supports 10 RT of process cooling for IT rooms at 15-25 kW/RT typical density. ZL-20T paired with water-cooled CRAH units provides reliable cooling for distributed IT infrastructure. Compact 1180mm footprint enables installation in constrained edge locations.
Data centers with free cooling strategies use ZL-20T in hybrid cooling systems: dry cooler for cold ambient (<15C), ZL-20T for moderate ambient (15-25C), chiller for hot ambient (>25C). ZL-20T supports 60-70% annual free cooling hours in temperate climates, reducing chiller runtime by 80%. Energy savings 30-50% versus mechanical-only cooling. ZILLION free cooling integration guide provides control sequences.
Mission-critical data centers (Tier III/IV) deploy N+1 ZL-20T configurations: 11 units for 10 RT design load. Failure of any single tower does not impact cooling capacity. ZL-20T 0.5%/year unplanned downtime supports Tier III 99.982% availability. ZILLION provides redundancy design guide with failure mode analysis for Tier IV concurrent maintainability.
ZL-20T stable leaving water temperature (32C ± 2C at design conditions) supports hot/cold aisle containment strategies. Return water temperature to tower: 37C (from CRAH units), supply 32C, range 5C. Stable return temperature improves CRAH unit performance and reduces humidity swings in containment zones. ZILLION provides return water temperature stability data for CFD modeling of data center airflow.
Tier III data centers require N+1 redundancy for cooling systems. For 100 RT total IT cooling load, deploy 11 ZL-20T units (each 10 RT) with automatic isolation valves. Tier IV concurrent maintainability requires 2N redundancy: 20 ZL-20T units on dual independent cooling loops. ZILLION provides redundancy design guide with failure mode analysis.
Hyperscale data centers require strict water treatment for cooling towers: cycles of concentration 7-10 (vs standard 5-7), conductivity <1,500 μS/cm, pH 7.5-8.5, free chlorine 0.3-0.5 ppm. ZL-20T compatibility with high-cycle chemistry: passivated stainless steel hardware, FRP shell chemical resistance, drift eliminator biofilm resistance. ZILLION water treatment specification for hyperscale.
Data centers near office or residential areas require noise compliance. ZL-20T noise: 60 dB(A) at 1m. For data centers within 30m of property line, noise mitigation: (1) Acoustic enclosure reduces to 50 dB, (2) Barrier walls provide 5-10 dB attenuation, (3) Strategic placement on opposite side of building from neighbors. ZILLION provides noise modeling per ISO 9613-2.
ZL-20T integration with Data Center Infrastructure Management (DCIM): Modbus TCP/RTU communication of 15+ parameters (leaving/entering water temp, fan motor current, vibration, basin level, water treatment status). ZILLION provides DCIM integration guides for Schneider StruxureWare, ABB Ability, Vertiv Trellis, and Huawei iManager.
ZL-20T 15-year lifetime cost: acquisition USD 1,050 + installation USD 800 + annual operating USD 2,700 × 15 + maintenance USD 200 × 15 = USD 45,150 per tower. For 10-tower data center deployment: USD 451,500 over 15 years = USD 30,100/year cooling infrastructure cost. Lower than air-cooled alternative at USD 67,500/year by 55%.
Authoritative References:
The ZL-20T cooling tower delivers measurable value for data center buyers. The following key takeaways summarize the most critical specifications and operational considerations:
Data Center Cooling at Tier III Edge Facility — A Tier III edge data center in Singapore deployed 4 ZL-20T units for primary cooling of 40 RT IT load. After 18 months operation, the facility achieved PUE 1.12 (vs design PUE 1.25) and WUE 1.4 L/kWh (vs industry average 1.8 L/kWh). The data center manager reported ZL-20T reliability as a key contributor to Tier III 99.982% availability achievement and Uptime Institute certification in month 14.
The following questions address the most common inquiries from data center buyers evaluating the ZL-20T cooling tower for their application. Each answer references technical specifications and compliance documentation applicable to this configuration:
ZL-20T supports data center sustainability certifications: LEED v4 BD+C Data Centers (gold/platinum levels), Uptime Institute Tier Certification, TIA-942 sustainability requirements, EN 50600 sustainability metrics. ZL-20T specific contributions: PUE <1.30, WUE <1.5 L/kWh, 30% water reduction, 20% energy reduction. Documentation packages for certification submittals available.
ZL-20T annual operational carbon footprint: 0.55 kW × 16 hr/day × 365 days × 0.4 kg CO2/kWh = 864 kg CO2/year per tower. For 10-tower deployment: 8.6 metric tons CO2/year. Compared to air-cooled CRAC at 1,440 kWh/year per RT × 0.4 kg CO2/kWh × 10 RT × 10 towers = 57.6 metric tons CO2/year — ZL-20T saves 49 metric tons CO2/year.
ZL-20T fan motor and pump power are metered and reported as Scope 2 emissions for data center operations. Annual Scope 2 reduction per tower: 864 kg CO2 (vs air-cooled equivalent 2,880 kg CO2). For 10-tower deployment: 20.2 metric tons CO2/year Scope 2 reduction supporting SBTi targets and corporate net-zero commitments.
ZL-20T supports data center ESG metrics: GRI 302 (energy), GRI 303 (water), GRI 305 (emissions), SASB Data Center standard, TCFD climate risk, CDP climate and water disclosure. Annual performance data feeds into ESG reports with third-party verified metrics. ZILLION provides ESG reporting templates with verified performance data.
ZL-20T supports TCFD climate risk assessment: physical risk (water-stress regions benefit from low drift loss), transition risk (carbon pricing reduces operational cost vs air-cooled), opportunity (green financing access for water-efficient cooling). ZL-20T 30% water reduction mitigates water-stress physical risk in regions like Middle East, India, Australia.
For data centers pursuing net-zero by 2030, ZL-20T cooling system contributes: 30% energy reduction vs air-cooled, 30% water reduction vs standard CT, 99% recyclable end-of-life materials. Combined with renewable energy procurement, ZL-20T enables data center Scope 2 net-zero cooling operations. ZILLION provides net-zero cooling roadmap consulting.
Zillion has supplied industrial cooling towers since 2009, with FRP counter flow construction as our standard since 2014. The ZL-20T's 15.62 m3/h flow at 5C range and 70.35 kW heat rejection cover the 20-ton process cooling capacity class at 0.55 kW fan power — the lowest power consumption per ton in our ZL series.
Contact: Leika Li, +86 185 2053 2504, Leika@gdzillion.cn. Factory: Building 103-B, Yi'an Industrial Park, Fenggang Town, Dongguan, Guangdong, China.
From data center to other buyer perspectives, the ZL-20T platform reports across ten sustainability contexts:
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Overview The ZL-10T is a 10-ton (35.2 kW) industrial FRP counter flow cooling tower purpose-built for cfo procurement applications. ZILLION engineered this 10-ton counter flow cooling tower with CE ISO 9001:2015 certification and quality construction for long service life in compact industrial installations. Key Specifications Cooling capacity: 35.2 kW (10 refrigeration ton) Water flow rate: 7.81 m3/h (130 L/min) design flow Heat rejection: 5 deg C approach to wet-bulb at 27 deg C design Fan airflow: 85 CMM at 635 mm fan diameter Motor power: 0.37 kW (0.5 HP) at 380V 3-phase 50 Hz Head loss: 13 kPa at design flow Dry weight: 46 kg, operating weight: 190 kg Overall dimensions: H1820 x Dia940 mm Design Features FRP counter-flow shell for corrosion resistance and long service life ABS plastic fan blade for low maintenance and quiet operation IP55 Class F insulation for harsh industrial environments Counter flow square configuration for maximum heat transfer efficiency Low-drift eliminator reduces water loss to 0.01 percent of circulation Applications Factory direct pricing EXW Dongguan with T/T, L/C, Western Union payment terms. 1-year warranty and bulk discount at 5/10/20 unit tiers. Lowest capacity entry point for ZILLION counter flow cooling tower line. Total cost of ownership over 10-year lifecycle shows 18 percent lower annual cooling energy cost versus adiabatic systems. Contact ZILLION Today Get a quote for the ZL-10T cooling tower from ZILLION factory direct. Contact our engineering team for factory pricing, thermal performance curves, technical specifications, and bulk discount tiers for your project requirements.
Overview The ZL-10T is a 10-ton (35.2 kW) industrial FRP counter flow cooling tower purpose-built for maintenance technician applications. ZILLION engineered this 10-ton counter flow cooling tower with CE ISO 9001:2015 certification and quality construction for long service life in compact industrial installations. Key Specifications Cooling capacity: 35.2 kW (10 refrigeration ton) Water flow rate: 7.81 m3/h (130 L/min) design flow Heat rejection: 5 deg C approach to wet-bulb at 27 deg C design Fan airflow: 85 CMM at 635 mm fan diameter Motor power: 0.37 kW (0.5 HP) at 380V 3-phase 50 Hz Head loss: 13 kPa at design flow Dry weight: 46 kg, operating weight: 190 kg Overall dimensions: H1820 x Dia940 mm Design Features FRP counter-flow shell for corrosion resistance and long service life ABS plastic fan blade for low maintenance and quiet operation IP55 Class F insulation for harsh industrial environments Counter flow square configuration for maximum heat transfer efficiency Low-drift eliminator reduces water loss to 0.01 percent of circulation Applications Routine service schedule: weekly water quality check, monthly float valve inspection, quarterly fill media inspection, annual fan motor bearing service. Direct-drive 0.37 kW motor with single-phase fan configuration. Spare parts inventory: 0.37 kW fan motor, float valve assembly, fill media sections. Contact ZILLION Today Get a quote for the ZL-10T cooling tower from ZILLION factory direct. Contact our engineering team for factory pricing, thermal performance curves, technical specifications, and bulk discount tiers for your project requirements.
Overview The ZL-10T is a 10-ton (35.2 kW) industrial FRP counter flow cooling tower purpose-built for hvac epc contractor applications. ZILLION engineered this 10-ton counter flow cooling tower with CE ISO 9001:2015 certification and quality construction for long service life in compact industrial installations. Key Specifications Cooling capacity: 35.2 kW (10 refrigeration ton) Water flow rate: 7.81 m3/h (130 L/min) design flow Heat rejection: 5 deg C approach to wet-bulb at 27 deg C design Fan airflow: 85 CMM at 635 mm fan diameter Motor power: 0.37 kW (0.5 HP) at 380V 3-phase 50 Hz Head loss: 13 kPa at design flow Dry weight: 46 kg, operating weight: 190 kg Overall dimensions: H1820 x Dia940 mm Design Features FRP counter-flow shell for corrosion resistance and long service life ABS plastic fan blade for low maintenance and quiet operation IP55 Class F insulation for harsh industrial environments Counter flow square configuration for maximum heat transfer efficiency Low-drift eliminator reduces water loss to 0.01 percent of circulation Applications IP55 Class F insulation, CE ISO 9001:2015 certified for small HVAC chiller condenser water loop integration. Compact 1820 x 940 mm footprint fits standard equipment room layouts. Submittal package: thermal performance curve, dimensional drawing, electrical schematic, O&M manual. Project delivery 15-25 days for bulk orders. Contact ZILLION Today Get a quote for the ZL-10T cooling tower from ZILLION factory direct. Contact our engineering team for factory pricing, thermal performance curves, technical specifications, and bulk discount tiers for your project requirements.
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