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Chillers

Industrial Chillers 4 – 12kW

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

 

Features

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
  • Comprehensive 12 months warranty on all parts and labour
  • HP/LP and flow switch safeties as standard
  • Highly accurate electronic controller
  • 316SS plate heat exchanger condenser
  • 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

Model TC03 TC04 TC05 TC07
System type Chiller Heat rejection Air
Capacity

ASHRAE COND

TR
Btu/hr
kW 3.5 4.6 5.4 6.5
EER (kW/TR)
Capacity control % 0-100%
Refrigerant Type R134a
Total power input kW 2.41 2.75 3.01 3.27
Total running current Amps 8.5 9.2 9.8 10.2
Power requirements V/Hz/Ph 380-415/50/3
COMPRESSOR Scroll Hermetic Start method DOL
Motor size HP 1.8 2.5 3.0 3.5
RPM 1/min 2900
QTY 1
Maximum Power input kW 1.23 1.57 1.83 2.09
Total running current Amps/ph. 2.4 3.1 3.7 4.1
MCC/ comp Amps 5.5 7.0 8.0 9.0
Rated load current / comp Amps 3.5 4.5 5.1 5.8
Locked rotor amps Amps 24.0 32 40.0 46.0
Oil charge / comp L 0.5 0.5 0.5 0.6
Oil type POE
CONDENSER Air cooled – heavy duty – high ambient design
Material Aluminum, blue fin on copper tube
Tube diameter Inch 7mm
Fin spacing mm 7mm
CONDENSER FANS External, axial fans, 4 pole – speed controlled
Fan speed Rpm 900
Fan diameter mm 500
No fans 1
Total power input kW .68
Total running current Amps 3.0
Total air flow M3/ hr 6500
EVAPORATOR Plate heat exchanger
No. refrigeration circuits 1
Chilled water flow rate l/s 0.1 0.2 0.25 0.3
Pressure drop kPa 50
Inlet / outlet CHW Temperature C 12/07
Working temp range C 05/20
Water connections mm 1” FBSP
Evaporator protection Flow switch
Expansion TX valve
CONTROLLER Standard electronic – Dixell
HP Safety 2850kPa LP Safety 375kPA
Shipping weight – dry Kg 170 175 180 185
Buffer Tank Litres 80
BMS protocols Buffer tank construction  Stainless steel

 

Model TC8 TC10 TC12
System type Chiller Heat rejection Air
Capacity

ASHRAE COND

 

TR 2.2 2.45
Btu/hr
kW 7.6 8.3 11.4
EER (kW/TR)
Capacity control % 0-100%
Refrigerant Type R134a
Total power input kW 3.7 3.9 4.8
Total running current Amps 11.0 12.0 13.0
Power requirements V/Hz/Ph 380-415/50/3
COMPRESSOR Scroll Hermetic Start method DOL
Motor size HP 4.0 4.5 6.0
RPM 1/min 2900
QTY 1
Maximum Power input kW 2.53 2.7 3.6
Total running current Amps 4.9 5.0 6.8
MCC/ comp Amps 11.0 12.0 14.0
Rated load current / comp Amps 7.1 7.5 9.0
Locked rotor amps Amps 50.0 51.5 74.0
Oil charge / comp L 0.6 0.6 0.7
Oil type POE
CONDENSER Air cooled – heavy duty – high ambient design
Material Aluminum, blue fin on copper tube
Tube diameter Inch 7mm 3/8”
Fin spacing mm 7mm ½”
CONDENSER FANS External, axial fans, 4 pole – speed controlled
Fan speed Rpm 900
Fan diameter mm 500 450
No fans 1 2
Total power input kW 0.68 0.7
Total running current Amps 3.0 3.1
Total air flow M3/ hr 6500 7800
EVAPORATOR Plate heat exchanger
No. refrigeration circuits 1
Chilled water flow rate l/s 0.3 0.4 0.6
Pressure drop kPa 50
Inlet / outlet CHW Temperature C 12/07
Working temp range C 05/20
Water connections mm 1” FBSP
Evaporator protection Flow switch
Expansion TX valve
CONTROLLER Standard electronic – Dixell
HP Safety 2850kPa LP Safety 375kPA
Shipping weight – dry Kg 185 190 200
Buffer Tank Litres 80 90
BMS protocols Buffer tank construction  Stainless steel


Dimension

TC03 to TC08 Unit

 

TC03 to TC08 Closed loop chiller

 

TC10 and TC12

 

TC10 and TC12 Closed Loop

 

Selecting the chiller

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

The flow/ pressure charts for the pumps offered are shown below

Pump Data – Models TC03 to TC12

  • RPM 2900
  • Approvals – CE,WRAS,ACS,TR,EAC
  • Housing – cast iron
  • Impeller – Stainless steel 304
  • Rated power 0..67 to 1.1 kW
  • Rated Hz – 50/60
  • Rated voltage 220/ 240
  • Rated amps 3.1 to 5.2 amps
  • Weight 16kg

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 (I) 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

Remote Condensers (R)

 

 

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

WARRANTY

  • 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

 

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