Thermex chillers are designed supply chilled water to heat developing processes. The unit are manufactured in Australia to suit local condition and give our customer the solutions they need
Thy can be installed indoors or outdoors and can be configured to supply chilled water for
The chillers are supplied with – as standard
Industrial process chillers are designed to circulate water to a heat producing process via a water pump. The water brings the heat back to the chiller where the compression cycle cools the water before it is returned to the heat process.
|System type||Chiller||Heat rejection||Air|
|Total power input||kW||6.25||6.85||7.75||9.37||9.37|
|Total running current||Amps||17.5||18.7||19.3||17.8||19.9|
|COMPRESSOR||Scroll Hermetic||Start method||DOL|
|Maximum Power input||kW||4.7||5.3||6.2||7.6||7.6|
|Total running current||Amps/ph.||10.4||11.6||12.2||13.6||15.7|
|Rated load current / comp||Amps||10.9||14.1||17.9||–||22.4|
|Locked rotor amps||Amps||101||111||118||125||140|
|Oil charge / comp||L||0.7||0.7||1.0||1.2||1.5|
|CONDENSER||Air cooled – heavy duty – high ambient design|
|Material||Aluminum, blue fin on copper tube|
|CONDENSER FANS||External, axial fans, 4 pole – speed controlled|
|Total power input||kW||0.7||0.92/ phase|
|Total running current||Amps||3.1||2.3/ phase|
|Total air flow||M3/ hr||7800|
|EVAPORATOR||Plate heat exchanger|
|No. refrigeration circuits||1|
|Chilled water flow rate||l/s||0.8||0.9||1.0||1.1||1.2|
|Inlet / outlet CHW Temperature||C||12/07|
|Working temp range||C||05/20|
|Water connections||mm||1” FBSP|
|Evaporator protection||Flow switch|
|CONTROLLER||Standard electronic – Dixell|
|HP Safety||2850kPa||LP Safety||375kPA|
|Shipping weight – dry||Kg||215||225||232||245||260|
|BMS protocols||–||Buffer tank construction||Stainless steel|
|Pump model||Current draw – 1 phase||Current draw – 3 Ph||Motor rating – kW|
|Approvals||CE, WRAS, ACS, TR, EAC|
|Impeller||Stainless steel 316|
Process chillers are typically not for potable water applications although the chiller can be designed to supply potable water.
All Thermex chillers up to 50kW are supplied with a buffer tank – the buffer tank is an important feature in all chillers and the bigger the better. The buffer tank in a process chiller has many benefits such as
|Close tolerance (CT)||The chiller can be manufactured with either a hot gas bypass valve or a VFD on the compressor for close temperature tolerance. Standard tolerance achievable is ±0.5C depending on load conditions
The valve acts as to unload the refrigeration effect to the evaporator as the chilled water temperature approached set point.
If the compressor is fitted with a VFD this will slow the compressor down as water temperature approaches set point and speed it up as it approached set point plus hysteresis. The software has a PID loop to ensure maximum efficiency and maintain temperature control.
|BMS Connectivity||The chiller can be connected to the high or low level BMS
Low level connectivity will be dry contact for
– Master run
– Master fault
High level connectivity is Modbus, SNMP and Bacnet over Ethernet without the need for a gate way
|Tandem/ N+1 (T)||The chiller can be wired if they are to be installed in a N+1 arrangement so the lead chiller manages the duty cycling of the chillers and controls the chillers if a fault should develop in one of the chillers|
|Potable water supply
|The chiller can be manufactured to deliver water for potable water application. A typical installation requires the chiller to be connected to the main water and the pressure from the main is used to supply the process.
The chiller will have a heat exchanger installed which will cool the mains water to the supply temperature in a single pass
If the process does not require water the chillers operation is unaffected
This method of construction also allows the chiller to be used to cool water temperatures above 20C
|The chiller can be manufactured as a split system. The evaporator can be installed indoors in a plant room for example and the condenser installed outdoors.
Typically, the maximum distance between the 2 halves of the chiller is 20 meters – for longer runs contact Thermex’s engineering staff
|High corrosive environments||If the chiller is to be installed in an environment with corrosive elements present the chiller can be manufactured in such a way to extend the life of the unit
These environments can be
– Coastal which high levels of salt spray present
– Mining with Sulphur present
The coils on the units can be coated to extend their life – the coil will lose efficiency if the bond between the copper and the aluminum starts to break down
The units can be constructed with stainless steel cabinets
The electrical enclosures are weather proof but if an enclosure is required with a high IP rating this can be offered
In the case where flammable gas is present an Ex or ATEX rated unit maybe required
|Soft starters||In installations where the power supply is not robust soft starters can be supplied on the compressors to limit the in-rush current on compressor start up.|
|Redundant pumps||The units can be supplied with 2 pumps that duty cycle to share the wear and tear. The software can also start the pump sitting in redundancy if the duty pump develops a fault|
|The electrical box can be supplied with a separate set of terminals to allow an uninterruptable power supply to be wired so the pump will run continuously – this allows the chiller to keep pumping cold water to the process in the event the 3 phase supply develops and issue and allows the process to shut down in a managed way|
|Castors||The chiller can be supplied on wheels for ease of re-location|
|High Ambient||For installations such as mine sites, especially in remote areas where the temperatures are extreme the chiller can be constructed to be able to handle these extreme temperatures|
|Compressor VSD||Variable speed drives – fitted to the compressor to allow turn down in partial load conditions which adds to the operating efficiency of the chiller|
All operational cooling capacity, power consumption and current draw data shown above is based on the chiller operating at the limit of its design and is intended to be an indication only.
Each chiller will be individually designed to customer requirements and a detailed product specification will be supplied at time of order including installation instructions and dimensions. The power consumed by the unit and the current it will draw vary depending on how the chiller is constructed. The chillers performance may also vary slightly from the figures above again based on customer requirements.
THERMEX Solutions product range is subject to change without notice
Thermex Solutions is Australia’s largest manufacturer of small capacity specialsied industrial water chillers. The technical team at Thermex have a combined 50 years in the Australian chiller industry – no other company can offer this level of engineering support for our customers critical applications.
Rather than offer imported chillers Thermex has dedicated itself to providing locally specified and manufactured chillers which are supplied with components sourced from the industry’s leading suppliers. With specifying chillers experience counts and no other company has the experience to offer the advice and solutions the market requires.
As the Australian market grows and diversifies, Thermex can offer expert advice on chillers, heat pumps, variable speed high efficiency scroll chillers, air handling and more.
Thermex is back by a nationwide team of service technicians who are trained in the operation and maintenance of Thermex chillers