TECHNICAL SPECIFICATIONS - CW-80T-TWIN AUSTRALIAN, EUROPEAN, SOUTH AFRICAN & UK

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1 GENERAL Climate Wizard coolers operate with a high ratio of energy efficiency and deliver cool fresh air at extremely low energy cost. The CW-80T-TWIN is characterized by having no additional moisture added to the supply air stream (indirect cooling). These coolers comprise four supply air fans, eight exhaust air fans, thirty two indirect heat exchanger core packs, two water reservoirs, two pumps, and two chlorinator systems. CABINET AND BASE FRAME The cabinet is constructed from 304 stainless steel incorporating the motor / fan assemblies, non-corrodible heat exchange cores and other ancillary equipment all supported by a heavy gauge galvanized base frame for structural stability. Fork lift tine channels are provided within the base frame to facilitate transport and lifting. Lifting chains / straps could also be used through these channels with appropriate lifting equipment onto elevated structures (e.g. roof of a building). Components are effectively treated to ensure corrosion resistance and mechanical fasteners are zinc coated steel and stainless steel as appropriate. Connection interface surfaces are provided for the outlet ductwork to the customer ductwork to enable fitment using established industry practices. FANS The fans are a multi blade, centrifugal type with backward curved blades and single inlet. They have black coated rotors and aluminium impellers and are individually statically and dynamically balanced. The fans are directly mounted to the electric motors. The electric motors are high efficiency, electronically commutated and speed controlled to optimise efficiency particularly at low speeds. HEAT EXCHANGE CORES The heat exchange cores are designed to facilitate heat exchange between the wet and dry air passages such that high efficiency heat transfer takes place without the addition of any moisture. They are designed to provide long life and long term high efficiency. ELECTRICAL CABINET AND CONTROLS At each end of the cooler, control equipment including motor control hardware, PLC control system, touch screen and other electrical equipment is pre-wired and factory mounted within a robust IP66 enclosure suitable for outdoor conditions. WATER DISTRIBUTION SYSTEM The water supply connection is a 316 stainless steel ½ BSPT (compatible with 1/2 NPT) fitting that connects to the internally mounted electrically operated water solenoid, at the end of each cooler. Heat exchange cores saturation is achieved through internally mounted pumps delivering water to a specially designed non-clog water distribution system providing continuous uniform flow. The wet components of each pump are manufactured from stainless steel and the pumps are driven by a 3 phase industrial, fully enclosed fan cooled electric motor with thermal overload protection. Easily cleanable in line strainers are provided for both the incoming water supply and the water distribution system. WATER MANAGEMENT SYSTEM The cooler includes an electronic water management system that controls the maximum salinity level of the reservoir water through continuous monitoring, draining and automatic replenishment as determined by the control system. AIR FILTER Intake air is filtered through easily accessible, washable and replaceable pleated filters. BMS INTERFACE A BACnet module (optional) provides full BACnet interface for control and monitoring of the cooler. Remote control of the cooler is possible via dedicated BMS terminals provided within the electrical cabinet. RESERVOIR The reservoir is constructed from polymer to ensure durability and corrosion resistance. The reservoir is designed to house the water pump and accommodate the level control, chlorinator system and salinity monitoring water management system. The design of the reservoir and watering system ensures that no water remains after draining. ILL2392-A 1 of 8 ES E121-B AU1804

2 ELECTRICAL SYSTEM OVERVIEW (Times 2, at each end of the cooler except where stated) ILL2826-A WATER CONNECTION 1/2 BSPT Male thread connection on cooler, at each end of the cooler. Water Supply Temperature: Max. 40 C ILL2255-A In areas subject to freezing, the water line needs a drain down facility. If the water pressure exceeds the maximum specification then a pressure reducing valve is required and must be supplied and fitted by the installer. ILL2356-A DRAIN CONNECTION A built-in Drain Valve is controlled by the Water Management System. Drain water and tank overflow water must be carried away to a suitable discharge point in accordance with local regulations. The drain outlet provided will accept an NPS 2 inch (DN50) PVC pipe. Direct water into an open drain. 2 of 8 ES E121-B AU1804

3 BACNET INTERFACE OPTIONS FOR CW-80 SERIES BACnet is currently offered as an option on all CW-80 Series coolers. The popular protocols BACnet/IP and BACnet MS/TP can be provided as well as BACnet Ethernet. For the CW-80T-TWIN cooler, there are two instances of the interfaces described below and BACnet field wiring connections (with unique IP addresses) are required at each end of the cooler. Under BACnet control, it is recommended to operate both halves of the cooler in tandem. Communication items (referred to as objects ) form the key to the BACnet system. Seeley International have developed a full set of 108 objects for the CW-80 Series range of coolers. This set of objects (referred to as an objects list ) is detailed in the cooler Installation and Operation Manual BACnet Object List CW-80 Series and is available to assist customers in designing their building management control systems. This objects list can be divided into two groups - 17 objects that can be both read and modified by the customer and the balance of 91 objects that can be read only. The first group of 17 modifiable objects are associated with controlling and operating the CW-80 Series cooler as summarized in the following table: - Item Objects Details basic control 6 control of BACnet active, run, cool, direct cool (supercool only), fan speed, water tank drain master error reset 2 ability to reset errors clock 8 provision for adjusting clock - daylight saving BACnet integrity 1 used to confirm BACnet signal integrity (selectable feature) The second group of 91 read only objects are associated with the status of the CW-80 Series cooler as summarized in the following table: - Item Objects Details basic 19 software number, version and date, control mode, current operating status, watering sequence control, commissioning mode BMS 7 status of standard hard wired BMS signals air temperatures and humdity 8 air temperatures in both deg C and deg F for ambient, intermediate (supercool only) and supply air humidity in RH% for ambient and supply air pressures 4 differential pressure across the supply and exhaust parts of the core in both Pa and inches of water fans 10 supply and exhaust fan speeds, enable signals, normal signals tank 9 status of tank water level sensors, inlet solenoid, drain valve, chlorinator enable and adequate voltage output, average tank refill time, drain delay elapsed period Item Objects Details watering system 2 operating status of indirect pump and direct (supercool only) pump salinity 2 status of high salinity signal and timed drain in progress hours 6 accumulated running time in hours for overall cooler, supply fans, exhaust fans, indirect pump, direct pump (supercool only), chlorinator errors 24 water supply poor or inadequate at various stages of the tank fill or refill, indirect pump overload, direct pump (supercool only) overload, supply fan errors, exhaust fan errors, chlorinator warning and critical errors, high inlet air filter differential pressure error, low exhaust pressure error, unit operating in forced vent mode or has shut down due to combination of errors With the BACnet option installed, the standard BMS interface is still available should this be required. In this scenario the customer would control the cooler using the standard BMS interface but at the same time utilise the BACnet system only to monitor the detailed status of the cooler. A specific BACnet object is provided so that the customer can freely select either this style of control or normal full BACnet control. BACnet field wiring is simple as only a single pair of shielded wires is required to be connected to two terminals. Further, in multiple cooler installations this wiring can be looped from one cooler to the next up to a maximum of 127 coolers whilst still maintaining individual control and status monitoring. 3 of 8 ES E121-B AU1804

4 TECHNICAL SPECIFICATIONS - CW-80T-TWIN AUSTRALIAN, EUROPEAN, SOUTH AFRICAN & UK ISO PLUMBING DOOR SWING ILL2529-A ILL2392-A Option: Attenuator Ready Exhaust Ducts replacing Weatherseals TOP ILL2309-A ILL2828-A FRONT & REAR CONTROL PANEL SIDE ILL2309-B ILL2389-A ILL2395-A 4 of 8 ES E121-B AU1804

5 SPECIFICATION Services Environment Performance Supply Motors/Fans Electrical Supply High Speed Standard High Capacity option Water Supply Max. Operating Temp Standard High Capacity option Nominal Cooling Capacity* kw Diecast aluminium housing. Inverter drive with 0-10V control and overload protection. CW-80T-TWIN 3 phase N+E, V 50Hz 44A (total) 3 phase N+E, V 50Hz 54A (total) 1/2 male BSPT connection. Recommended pressure range 200 to 500 Kpa Maximum pressure (static) 800 Kpa Minimum flow rate through 10.0mm test orifice: 45 L/min * Cooling capacity measured to Australian Standard AS , ambient of 38 C dry bulb & 21 C wet bulb, with room exit temperature of 27.4 C. Or Minimum pressure measured at connection point whilst simultaneously delivering 45 L/min: 85 Kpa 2 Connections at Control Panel ends 55 deg C ambient (measured in shade) Supply - 12,800 l/sec (46,080 m 3 100Pa Exhaust - 10,480 l/sec (37,720 m 3 /hr) Supply - 12,800 l/sec (46,080 m 3 430Pa Exhaust - 10,480 l/sec (37,720 m 3 /hr) 19.8 deg C supply temp, stand-alone cooling 286.8kW pre-cooling outside air V 50 / 60Hz 4 fans / motors, 560mm dia Exhaust Motors/Fans Diecast aluminium V 50 / 60Hz housing. Inverter drive with 0-10 V control and overload protection 8 fans / motors, 355mm dia Supply Air Outlet Top discharge, vertical duct. 3,000 x 1,000mm IP55 304/316 Stainless Steel wet end Pumps - (Indirect) construction 0.75kW 3 phase 50 / 60 Hz (2 off) IP55 304/316 Stainless Steel wet end Pump - (Direct) construction nil Chlorinator Controller and Cells 240V 50Hz (2 off) Salinity Salinity Water Manager (2 off) Seeley International P/Ltd Management Water Probe (2 off) Seeley International P/Ltd low voltage, Drain Valves vertical, electric servo motor drive 24VAC, P/No (2 off) Drain Connection Water Reservoir Heat Exchange Core Shipping Operating Weight Supplied horizontal outlet accepts 60.35mm OD (DN50) PVC pressure water pipe Seeley International P/Ltd moulded polymer Seeley International P/Ltd synthetic plate type, super efficient Dimensions Weight Weight including reservoir water, system water, supply and exhaust stator ducts. NPS 2 inch PVC 2 Connections at Control Panel ends 360 litre capacity litres capacity each Total 32 cores 6,004 L * 2,310 W * 2,547mm H 2 units end to end, each are 3,001 L * 2,310 W * 2,547 H Total 3,908 kg 2 units, each are 1,954 kg. Total 5,322 kg 2 units, each are 2,661 kg Air Filtration MERV 7 (G4) washable filters (standard) 622 x 622 x 45mm deep (nominal 25 x 25 x 2 deep) Standards Compliance Sound Power Level (without High Capacity option) (Based on a singular CW-80T or a CW-80) AS / IEC / EN CE Marking Radiated Power in horizontal direction with supply duct connected (db re 1pw) Octave Band Centre Frequency (HZ) k 2k 4k 8k Total Sound Power Level (dba re 1pw) of 8 ES E121-B AU1804

6 CW-80T-TWIN STANDARD AUSTRALIA, EUROPE, SOUTH AFRICA & UK ILL2829-A STATIC PRESSURE (Pa) Airflow 80% De-rate 13,660 13,280 12,540 11,860 11,200 Airflow 90% De-rate 14,300 14,120 13,700 13,180 12,660 CW-80T-TWIN HICAP AUSTRALIA, EUROPE, SOUTH AFRICA & UK ILL2835-A STATIC PRESSURE (Pa) Airflow 85% De-rate 14,800 13,740 12,860 11,920 6 of 8 ES E121-B AU1804

7 CW-80T-TWIN STANDARD AUSTRALIA, EUROPE, SOUTH AFRICA & UK ILL2841-A STATIC PRESSURE (Pa) Airflow 80% De-rate 49,180 47,810 45,140 42,700 40,320 Airflow 90% De-rate 51,480 50,830 49,320 47,450 45,580 CW-80T-TWIN HICAP AUSTRALIA, EUROPE, SOUTH AFRICA & UK ILL2834-A STATIC PRESSURE (Pa) Airflow 85% De-rate 53,280 49,460 46,300 42,920 7 of 8 ES E121-B AU1804

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