Industrial Chillers 4 – 50kW


Industrial Chillers 4 – 50kW

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.

  • Description
  • Technical Data
  • Pump performance
  • Options
  • About Thermex Solution


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

  • Potable water applications
  • Process cooling from an internal buffer tank
  • Process cooling to an external buffer tank


The chillers are supplied with – as standard

  • An internal 80L buffer tank to protect the compressor from excessive start, close temperature tolerance, reduces thermal spikes and allows for vented design with no need for hydronics kit
  • Suitable for indoor or outdoor installation
  • Rugged galvanized steel construction
  • Components sourced from the industry’s leading suppliers
  • R134a refrigerant for high ambient temperature operation and the lowest GWP of all contemporary refrigerants
  • Integrated circulation pump
  • Comprehensive 12 months warranty on all parts and labour
  • Highly accurate electronic controller
  • 316SS plate heat exchanger evaporator
  • Comprehensive factory testing before dispatch
  • Evaporator protection on all models

Chiller Application

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.

Technical Data

Technical Data

Model TC03 TC04 TC05 TC07
System type Chiller Heat rejection Air


kW 3.5 4.6 5.4 6.5
Total power input kW 2.41 2.75 3.01 3.27
Total running current Amps 8.5 9.2 9.8 10.2
Motor size HP 1.5 2.3 3.0 3.5
Chilled water flow rate l/s 0.1 0.2 0.25 0.3
Water connections mm 1” FBSP
Shipping weight – dry Kg 170 175 180 185
Buffer Tank Litres 80


Model TC8 TC10 TC12
System type Chiller Heat rejection Air


kW 7.6 8.3 11.4
Total power input kW 3.7 3.9 4.8
Total running current Amps 11.0 12.0 13.0
Motor size HP 4.0 4.5 6.0
Chilled water flow rate l/s 0.3 0.4 0.6
Water connections mm 1” FBSP
Shipping weight – dry Kg 185 190 200
Buffer Tank Litres 80 90


Model TC15 TC18 TC20 TC25 TC27
System type Chiller Heat rejection Air


kW 15.1 17.0 19.8 22.5 24.6
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
Motor size HP 8.0 9.0 10.0 12.0 13.0
Chilled water flow rate l/s 0.8 0.9 1.0 1.1 1.2
Water connections mm 1” FBSP
Shipping weight – dry Kg 215 225 232 245 260
Buffer Tank Litres 175


Model TC30A3 TC40A3 TC50A3
System type Chiller Heat rejection Air




29.5 39.0 48.9
Total power input kW 12.56 16.5 19.66
Total running current Amps 27.73 31.43 37.13
Motor size HP 15 20 26
Chilled water flow rate l/s 1.5 1.9 2.4
Water connections mm 1 ½” FBSP
Shipping weight – dry Kg 550 600 650
Buffer Tank Litres 500


Selecting the Chiller

Pump performance

Pump performance

The unit will usually be supplied with a primary circulating pump as standard.

THERMEX can customize the pump for particular applications and these should be specified at the time of order – the standard pump supplied with the chiller is sized to produce 350kPa of pressure external to the chiller at the required flow rate

The unit has an internal water bypass designed to protect the heat exchanger – it should not be closed under any circumstances

Pump model Current draw – Ph Motor rating – kW Model Power
P1 3.1 0.5 TC03 1 Phase
P2 3.1 0.5 TC05 to TC12 1 Phase
P4 4.0 0.85 TC15 1 Phase
P5 5.2 1.2 TC18 1 Phase
P6 4.6 2.2 TC20 – TC30 3 Phase
P7 4.8 2.2 TC40-TC50 3 Phase
RPM 2900
Approvals CE, WRAS, ACS, TR, EAC
Housing Cast iron
Impeller Stainless steel 316



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 25C

Remote Condensers




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

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 warrants all it products for 12 months from the agreed commissioning date – no later than 30 days from invoicing date.
  • The warranty is to the first purchases of the unit
  • The warranty covers all parts and labour to rectify the unit
  • The warranty is subject to THERMEX Solutions terms and conditions which will be provided at the time of order
  • Warranty is subject to Thermex Solutions full terms and conditions


About Thermex Solution

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