ZL-10T 10 Ton Industrial FRP Counter Flow Cooling Tower for HVAC EPC Contractor
| Parameter | Value |
|---|---|
| Model | ZL-10T |
| Cooling Capacity | 10 RT (35.2 kW heat rejection) |
| Water Flow Rate | 7.81 m3/h (130 L/min) |
| Cooling Range | 5C (37C inlet to 32C outlet at design WB 27C) |
| Approach to Wet-Bulb | 5C at design conditions |
| Fan Motor | 0.37 kW (0.5 HP) 380V 3-phase 50Hz |
| Fan Diameter | 635 mm axial |
| Air Flow Rate | 85 CMM (50,920 m3/h) |
| Head Loss at Design Flow | 13 kPa |
| Tower Dimensions (H x D) | 1820 x 940 mm |
| Dry Weight | 46 kg |
| Operating Weight (filled) | 190 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) |
The ZL-10T's 46 kg dry weight plus 190 kg operating weight (water-filled basin) creates a 236 kg total load on a 940x940 mm footprint — approximately 2.6 kN/m² ground pressure. Standard concrete pad specifications:
Pad dimensions: 600 × 600 × 150 mm (L × W × H) is the minimum for soil bearing capacity ≥25 kN/m². For weaker soils, increase pad area to 800 × 800 mm or 1,000 × 1,000 mm. Concrete: C25/30 mix (1:2:4 cement:sand:aggregate), reinforced with 6 mm mesh at 150 mm centers.
Mounting surface: Tower base flange bolts to embedded M10 × 80 mm anchor bolts (4 corners, 200 mm projection above pad). Use leveling shims (3 mm maximum stack height) to ensure tower is plumb — a 5 mm lean creates 0.5° misalignment, which the fan motor will fight against, increasing amp draw by 5-8%.
Drainage: Slope the pad surface 1-2% toward the basin drain side to direct overflow water to a floor drain or sump. Without proper pad drainage, overflow water pools under the tower, accelerating concrete degradation.
The ZL-10T's 1,820 mm height and 940 mm diameter present a frontal area of 0.94 m × 1.82 m = 1.71 m² to wind. For installation in open terrain (no surrounding buildings taller than the tower within 50 m), the design wind pressure is 0.5 kPa = 50 kgf/m²:
Lateral wind force on operating tower: 1.71 m² × 50 kgf/m² = 85.5 kgf at the tower's geometric center (height 910 mm). This force creates an overturning moment of 85.5 kgf × 0.91 m = 77.8 kgf·m about the base.
Required ballast: The 236 kg operating weight provides a restoring moment of 236 kgf × (0.94/2) = 110.9 kgf·m. The 77.8 kgf·m wind moment is comfortably resisted with a safety factor of 1.42. For taller installations or higher wind zones (coastal, mountain), consult the engineering tables in ZL-10T installation manual section 4.3.
For wind-exposed installations, additional tie-down straps to building structure are recommended. The ZL-10T base flange includes 4 anchor points designed for steel cable tie-downs (4 mm wire rope, breaking strength 1,800 kgf).
The ZL-10T's four water connections are flanged DN50 (2 inch) PVC-compatible fittings:
Inlet (hot water from chiller condenser): DN50 flange, mounted on the top water distribution header. Schedule 80 PVC or carbon steel piping recommended. Design flow 7.81 m³/h requires minimum 40 mm internal diameter (DN50 provides 50 mm — 25% margin).
Outlet (cooled water to chiller): DN50 flange, mounted on the basin side wall. Includes integrated stainless steel strainer (1.5 mm perforation) to prevent debris from entering the chiller.
Makeup water: DN15 (1/2 inch) threaded connection on the basin side wall. Connect to plant water supply through a float valve (supplied). Float valve setting: water level 50 mm below overflow level.
Overflow: DN50 connection at the basin top, piped to a floor drain or indirect waste receptor. Prevents basin overflow during pump failure or makeup valve malfunction.
Drain: DN50 bottom-mounted ball valve for basin drain-down during maintenance. Connect to floor drain via indirect waste pipe (air gap).
The ZL-10T's 46 kg dry weight is a significant advantage for installation logistics. Three installation scenarios are common:
Scenario 1 — Ground level installation: Two-person team can lift the tower directly from delivery truck onto prepared pad. No crane required. Typical time: 30 minutes for positioning + 2 hours for piping and electrical.
Scenario 2 — Rooftop installation (2-3 floor building): Use a portable gantry or chain hoist to lift the tower to the roof. With 46 kg dry weight, a single-rope manual hoist (rated 250 kg) is sufficient. Typical time: 1 hour for lift + 4 hours for piping and electrical.
Scenario 3 — High-rise rooftop (5+ floors): Use a small mobile crane (1-2 ton capacity) or building service elevator. With 46 kg dry weight, the tower can often be moved without disassembly — even if the elevator is rated only 100 kg per trip, the tower fits in 2-3 elevator trips after subassembly. Typical time: 2 hours for rigging + 6 hours for piping and electrical.
For all scenarios, lifting points are integrated into the tower's top frame — standard rigging hooks engage the 4 lift points for balanced lift.
The ZL-10T's fan motor requires 380V 3-phase 50Hz power supply. For installations where 3-phase is not available, single-phase operation requires a phase converter (typically a 1.5 kVA rotary or static converter).
Motor specification: 0.37 kW (0.5 HP), 380V ±3-phase, 50 Hz, 1,440 rpm, IP55 protection class, Class F insulation. Full load current: 1.2-1.5 amps (depending on power factor and motor manufacturer).
Overload protection: Thermal overload relay setting: 1.5 amps (1.0 × FLA). Phase failure relay required for installations with unstable 3-phase supply (common in rural or generator-backed installations).
Wiring: 3 × 1.5 mm² PVC-insulated copper cable from distribution board to motor junction box. Maximum cable run: 50 m without derating. For runs exceeding 50 m, upgrade to 3 × 2.5 mm² to limit voltage drop to <3%.
Control: Simple on/off switch with thermal overload. For variable-speed operation (energy saving at partial load), a VFD rated 0.75 kW (next size up) provides 30-60 Hz speed range.
Before initial startup, the EPC contractor completes this 12-point pre-commissioning checklist:
1. ✓ Pad surface level within ±3 mm/m (use 1 m straight edge). 2. ✓ Anchor bolts tight (torque to 35 Nm). 3. ✓ Tower plumb within 2 mm vertical deviation over full height. 4. ✓ Inlet/outlet piping flushed clean (no debris). 5. ✓ Makeup float valve operational, no leaks. 6. ✓ Drain valve closed, no leaks. 7. ✓ Overflow pipe unobstructed. 8. ✓ Motor rotation correct (verify arrow on fan housing matches). 9. ✓ Motor amp draw at full load within 10% of nameplate. 10. ✓ Electrical grounding verified (<10 ohms to ground). 11. ✓ Basin filled to operating level (50 mm below overflow). 12. ✓ Water treatment chemicals dosed per maintenance manual.
Document each check on the commissioning report form. Sign-off by EPC site engineer and customer's facility engineer required before final handover.
600 × 600 × 150 mm concrete pad (C25/30 mix, 6 mm mesh at 150 mm centers). Four M10 × 80 mm anchor bolts at corners. Pad level within ±3 mm/m. Pad slope 1-2% toward drain side.
0.5 kPa for open terrain installation. Lateral wind force 85.5 kgf at tower's geometric center (height 910 mm). Restoring moment from 236 kg operating weight: 110.9 kgf·m versus wind moment 77.8 kgf·m (safety factor 1.42).
DN50 inlet (top), DN50 outlet (basin side with strainer), DN15 makeup water (float valve), DN50 overflow, DN50 drain (ball valve). Schedule 80 PVC or carbon steel recommended.
46 kg dry weight allows two-person ground-level installation. For rooftop: portable gantry or chain hoist (rated 250 kg). For high-rise: 1-2 ton mobile crane. Four integrated lift points on the tower's top frame.
380V 3-phase 50Hz, 1.2-1.5 A full load current, 0.37 kW motor. Thermal overload set at 1.5 A. Wiring: 3 × 1.5 mm² PVC copper cable (50 m max), upgrade to 3 × 2.5 mm² for longer runs. VFD option for variable-speed operation.
Authoritative References: ASCE 7-22 Minimum Design Loads for Buildings | ACI 318 Building Code Requirements for Structural Concrete
From HVAC system integration to turnkey plant commissioning, the ZL-10T platform covers ten project contexts:
Zillion has supplied industrial cooling towers since 2009, with FRP counter flow construction as our standard since 2014. The ZL-10T's 7.81 m3/h flow at 5C range and 35.2 kW heat rejection cover the 10-ton process cooling capacity class at 0.37 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.
The ZL-10T (10 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-10T cooling tower is engineered in accordance with industry-recognized standards. The following authoritative sources establish the technical baseline for hvac epc contractor applications:
An HVAC contractor in the Philippines delivered a ZL-10T installation as part of an 8-week small commercial HVAC retrofit. Project timeline: week 1 order confirmation, week 4 production complete, week 6 ocean freight arrival, week 7 crane installation and piping, week 8 commissioning. The contractor provided LEED v4 documentation including VOC emissions certificate and material content declaration. The ZL-10T enabled the contractor to deliver ASHRAE 90.1 compliant cooling for the 800 m² office facility.
Use the following jump links to navigate to specific sections of this product page:
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 (10 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-10T cooling tower is also designed in accordance with the following additional industry standards that complement the core technical baseline:
Quick Specs: ZL-CT40 industrial round cooling tower with 40-ton cooling capacity, FRP material, counter-flow design, 1.5kW fan, CE certified. Best for industrial chiller systems and mid-scale manufacturing. The water cooling tower is a device used for cooling circulating water. By exchanging heat between hot water and air, the water temperature is reduced, thus realizing the repeated use of circulating water. Water cooling towers are widely used in industrial production, air conditioning systems and other fields, and are of great significance for saving water resources and reducing energy consumption.
Quick Specs: ZL-CT60 round shape water cooling tower with 60-ton capacity, counter-flow design, FRP material, 1.5kW fan, CE certified. Best for industrial chiller systems and large-scale cooling. A water cooling tower is a device used for cooling industrial water or other liquids. Its main function is to cool down hot water through heat exchange between hot water and air so that the cooled water can be recycled.
Quick Specs: ZL-CT100 FRP round cooling tower with 100-ton cooling capacity, FRP material, 2.2kW fan, CE certified. Best for large-scale industrial cooling and high-capacity chiller systems. The counterflow cooling tower is a common type of cooling tower. It sprays hot water from top to bottom and air flows from bottom to top, enabling hot water and air to exchange heat in the packing, thereby reducing the water temperature. The counterflow cooling tower has the advantages of high cooling efficiency, compact structure and small floor area, and is widely used in industrial production, air conditioning and refrigeration and other fields.
Quick Specs: ZL-CT square drop counter-flow cooling tower with FRP material, multiple capacity options, CE certified. Best for high-temperature industrial water cooling and open cooling tower applications. The square cooling tower has the advantages of small floor area, beautiful appearance, and convenient installation. It is widely used in fields such as air conditioning and refrigeration and industrial cooling, providing effective cooling guarantee for the normal operation of various equipments.
Quick Specs: ZL-CT factory-direct industrial cooling tower with multiple types and capacities, high-efficiency design, CE certified. Best for industrial cooling applications and large-scale manufacturing. A cooling tower dissipates heat from industrial or air - conditioning systems. Its working principle involves spraying hot water onto packing to form a water film, while air flow carries away heat from the water to lower its temperature. The cooled water is recyclable, saving water resources and reducing costs. There are various types, such as open and closed cooling towers. Open ones contact outside air directly, making water prone to contamination but with lower costs. Closed ones have water circulating in sealed pipes, ensuring cleaner water but usually at a higher price. Cooling towers play a key role in fields like power plants, chemical plants, and data centers, helping maintain system operation and improve energy utilization efficiency.
The ZL-10T 10 Ton Industrial FRP counter flow cooling tower delivers 35.2 kW heat rejection at 27C wet-bulb and 32C leaving water, designed for CFO buyers evaluating cooling tower procurement for capital projects. ZILLION engineered this 10-ton FRP counter flow cooling tower with ISO 9001:2015 quality construction for long service life. The smooth FRP shell resists algae and biofilm buildup, while the aluminum alloy fan blade is fully enclosed for operator safety. Specifications include 7.81 m3/h circulation flow, 0.37 kW fan motor, 5C cooling range, and 5C approach to wet-bulb. Pricing starts at USD 1050 EXW Dongguan, with volume discounts available. MOQ 1 unit, lead time 7-15 days for cfo procurement buyers.
The ZL-10T 10 Ton Industrial FRP counter flow cooling tower delivers 35.2 kW heat rejection at 27C wet-bulb and 32C leaving water, designed for maintenance technicians with low servicing needs and easy-access components. ZILLION engineered this 10-ton FRP counter flow cooling tower with ISO 9001:2015 quality construction for long service life. The smooth FRP shell resists algae and biofilm buildup, while the aluminum alloy fan blade is fully enclosed for operator safety. Specifications include 7.81 m3/h circulation flow, 0.37 kW fan motor, 5C cooling range, and 5C approach to wet-bulb. Pricing starts at USD 1050 EXW Dongguan, with volume discounts available. MOQ 1 unit, lead time 7-15 days for maintenance technician buyers.
The ZL-10T 10 Ton Industrial FRP counter flow cooling tower delivers 35.2 kW heat rejection at 27C wet-bulb and 32C leaving water, sized for engineer specifications and continuous-duty industrial process cooling applications. ZILLION engineered this 10-ton FRP counter flow cooling tower with ISO 9001:2015 quality construction for long service life. The smooth FRP shell resists algae and biofilm buildup, while the aluminum alloy fan blade is fully enclosed for operator safety. Specifications include 7.81 m3/h circulation flow, 0.37 kW fan motor, 5C cooling range, and 5C approach to wet-bulb. Pricing starts at USD 1050 EXW Dongguan, with volume discounts available. MOQ 1 unit, lead time 7-15 days for engineer technical specifications buyers.
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