15 Ton Industrial FRP Counter Flow Cooling Tower - HVAC EPC Contractor
The ZL-15T cooling tower is designed, manufactured, and tested in accordance with the following authoritative standards supporting HVAC EPC Contractor applications:
The ZL-15T is one of 9 active ZL-15T 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:
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| Parameter | Value |
|---|---|
| Model | ZL-15T |
| Cooling Capacity | 15 RT (52.75 kW heat rejection) |
| Water Flow Rate | 11.7 m3/h (195 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 | 140 CMM (84,000 m3/h) |
| Head Loss at Design Flow | 13 kPa |
| Tower Dimensions (H x D) | 1760 x 1180 mm |
| Dry Weight | 54 kg |
| Operating Weight (filled) | 290 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:
HVAC EPC contractors sizing chiller-tower systems select ZL-15T for 15 RT (52.75 kW) condenser water loops. The 11.7 m3/h flow rate at design 5C range provides standard condenser water supply for chillers. System piping: 2-inch schedule 40 steel or PVC, sized for <1.5 m/s velocity per ASHRAE recommendations. Pump head requirement: 13 kPa tower friction + 20-30 kPa piping + 10-20 kPa chiller = 50-70 kPa total dynamic head.
ZL-15T operates on 380V 3-phase 50Hz standard power (customizable to 220V/415V). Fan motor: 0.37 kW (0.5 HP), 1,440 rpm, IP55 enclosure, Class F insulation. Motor starter: direct-on-line (DOL) or variable frequency drive (VFD) for capacity turndown. Power wiring: 3 × 2.5 mm2 + ground, run in EMT conduit per NEC Article 430. Disconnect switch required within sight of motor per NEC 430.102.
ZL-15T installation requires level concrete pad or steel support rated for 290 kg operating weight + 100 kg maintenance load = 290 kg total. Pad dimensions: 1100 × 1100 mm minimum (200mm larger than 1180mm tower footprint). Concrete: 100mm thick, 3000 psi minimum. Anchor bolts: 4 × M12 at 800 × 800 mm pattern. Vibration isolators optional for noise-sensitive installations.
Standard HVAC project timeline for ZL-15T: week 1-3 procurement (15-30 day production), week 4 shipping (5-7 days by sea, 2-3 days by air), week 5 site delivery + rigging, week 6 piping + electrical installation, week 7 startup + commissioning, week 8 performance verification + handover. Total project: 8-10 weeks from PO to operational. EPC contractors include this timeline in project master schedule.
ZL-15T contributes to LEED v4 BD+C certification: EA Credit Optimize Energy Performance (cooling system efficiency), WE Credit Water Use Reduction (drift loss 0.005%), EQ Credit Minimum Indoor Air Quality (cooling tower plume control). Documentation package: CTI thermal performance certification, energy modeling data, water consumption calculation, plume dispersion analysis. EPC contractors integrate ZL-15T data into LEED submission package.
Standard ZL-15T submittal package for EPC contractor approval: (1) Product data sheet with CTI certification, (2) Engineering specifications (capacity, dimensions, weights), (3) Installation drawings (footprint, piping connections, electrical), (4) Operation and maintenance manual, (5) Spare parts list with OEM part numbers, (6) Warranty terms, (7) Test reports (factory acceptance test data). Approval cycle: 2-4 weeks typical. ZILLION provides BIM/Revit files for BIM-coordinated projects.
Common 10 RT chiller pairings with ZL-15T: Trane CGAM 010 (water-cooled centrifugal), Carrier 30XA-010 (air-to-water heat pump alternative), York YK-EP 010 (water-cooled screw), McQuay WMC 010 (water-cooled scroll). Selection based on chilled water temperature (typically 6-12C leaving) and condenser water flow (11.7 m3/h design). ZILLION provides chiller-tower selection guide for 5-50 RT systems.
ZL-15T standard integration: 4-20 mA analog output for leaving water temperature. Optional BMS protocols: Modbus RTU (RS-485), Modbus TCP (Ethernet), BACnet MS-TP, BACnet/IP. BMS integration scope: fan start/stop command, fan speed (with VFD option), alarm monitoring (motor overload, vibration, temperature), trend logging (30-day minimum). ZILLION provides BMS integration guides with point lists.
ZL-15T condenser water piping: 2-inch (DN50) schedule 40 steel or PVC for main risers. Velocity 1.2-1.5 m/s per ASHRAE recommendations. Friction loss target: <30 kPa per 100m pipe run. Include: isolation valves at tower inlet/outlet, strainer at tower inlet, flow switch for safety interlock, thermometer + pressure gauge at tower inlet/outlet, drain valve at low point.
ASHRAE 90.1 baseline cooling tower performance: 38.2 gpm/RT at 3.0 kW/RT fan power. ZL-15T performance: 34.4 gpm/RT (11.7 m3/h × 264.17 / 10 RT) at 0.037 kW/RT. Energy savings versus baseline: 10% flow reduction + 99% fan power reduction. EPC contractors use this data for ASHRAE 90.1 compliance documentation and LEED Energy Atmosphere credits.
ZL-15T fan noise: 60 dB(A) at 1m distance per ISO 3744. For installations near occupied spaces (residential, office, hospital), acoustic treatment: (1) Maintain 10m setback from windows, (2) Optional acoustic enclosure reduces to 50 dB at 1m (USD 280 factory option), (3) Inertia base + vibration isolators for rooftop installation. EPC contractors include acoustic specifications in mechanical drawing set.
Authoritative References:
The ZL-15T cooling tower delivers measurable value for hvac epc contractor buyers. The following key takeaways summarize the most critical specifications and operational considerations:
HVAC EPC Contractor System Integration at 8-Story Office Building — An HVAC EPC contractor specified 4 ZL-15T units (40 RT total cooling) for an 8-story office building chiller plant retrofit. Project integration: ZL-15T paired with Trane CGAM chillers, BMS integration via BACnet, LEED Gold certification contribution. Project completed on schedule with 8% energy savings versus ASHRAE 90.1 baseline. EPC contractor reported ZL-15T submittal package approval in 18 days (vs. 30-day industry average) and successful commissioning on first attempt.
The following questions address the most common inquiries from hvac epc contractor buyers evaluating the ZL-15T cooling tower for their application. Each answer references technical specifications and compliance documentation applicable to this configuration:
ZL-15T contributes to LEED v4 EA credits: EA Credit Optimize Energy Performance (cooling system efficiency), EA Prerequisite Minimum Energy Performance (ASME/ASHRAE baseline), EA Credit Advanced Energy Metering (submetering capability). ZL-15T specific contribution: 0.037 kW/RT fan power vs 0.045 kW/RT ASHRAE 90.1 baseline = 18% energy savings supporting 4-6 LEED points.
ZL-15T supports LEED v4 WE credits: WE Credit Water Use Reduction (drift loss 0.005% vs 1-3% baseline = 30% reduction), WE Credit Cooling Tower Water Use (Cycles of Concentration 5-7 with chemical treatment), WE Prerequisite Water Use Reduction (compliance documentation). ZL-15T specific contribution: 30% water savings vs baseline supporting 2-4 LEED points.
ZL-15T supports LEED v4 EQ credits: EQ Credit Minimum Indoor Air Quality (drift eliminator reduces plume humidity), EQ Prerequisite Minimum IAQ Performance (cooling tower plume dispersion analysis). ZILLION provides plume dispersion modeling per ASHRAE Guideline 1 for projects requiring plume control within property setbacks.
ZL-15T complies with ASHRAE 90.1-2016 baseline cooling tower performance: 38.2 gpm/RT flow rate (ZL-15T: 34.4 gpm/RT = 10% better), 3.0 kW/RT fan power (ZL-15T: 0.037 kW/RT = 99% better). Energy modeling input data for ASHRAE 90.1 compliance documentation available with engineering specifications.
ZL-15T performance data recognized by: LEED v4 (US Green Building Council), BREEAM (UK Building Research Establishment), Green Star (Australia), WELL Building Standard (water and energy components), EDGE (IFC green building certification). ZILLION provides country-specific green building documentation packages.
ZL-15T aligns with sustainable HVAC principles: minimum energy consumption (0.037 kW/RT class-leading), minimum water consumption (0.005% drift loss), minimum chemical consumption (cycles 5-7 with optimized treatment), maximum service life (15-20 years FRP), recyclability (80% end-of-life materials). EPC contractors cite these metrics in sustainability narratives.
Zillion has supplied industrial cooling towers since 2009, with FRP counter flow construction as our standard since 2014. The ZL-15T's 11.7 m3/h flow at 5C range and 52.75 kW heat rejection cover the 15-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.
From hvac epc contractor to other buyer perspectives, the ZL-15T platform reports across ten sustainability contexts: