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Chillers

Industrial Chillers XA Series 50 to 350kW

The XA series Chillers are designed to cool processes with large heat loads

The XA series Chillers are designed to cool processes with large heat loads

They are outdoor chillers and can be configured to supply chilled water for

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

 

Features

The chillers are supplied with – as standard

  • Suitable for outdoor installation
  • Rugged galvanized steel construction on welded frames
  • Seamless copper pipework
  • Components sourced from the industry’s leading suppliers
  • R134a refrigerant available for high ambient temperature operation and the lowest GWP of all contemporary refrigerants
  • Integrated circulation pump available
  • Comprehensive 12 months warranty on all parts and labour
  • Highly accurate electronic controller – plc control for PID compressor staging control
  • Shell and tube evaporator
  • Comprehensive factory testing before dispatch

 

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 XA2.20.SY XA2-25.SY XA2.30.SY
System type Chiller Heat rejection Air
Capacity TR 17.2 19.7 25.2
R407c Btu/hr 206888
10C water supply kW 60.6 69.4 88.6
35C ambient EER (kW/TR)
Capacity control % 0-50%-100%
Refrigerant Type R407c
Total power input kW 17.1 18.9 24.8
Total running current Amps 31.8 34.4 51.2
Power requirements V/Hz/Ph 380-415/50/3
COMPRESSOR Scroll Hermetic
Motor size HP 2 x 10 2 x 12.5 2 x 15
RPM 1/min 2900
QTY 2 2 2
Maximum Power input kW 14.4 16.2 22.1
Total running current Amps 27.4 30.0 46.8
MCC/ comp Amps 26.9 31.0 42.0
Rated load current / comp Amps 17.2 19.9 26.9
Locked rotor amps Amps 118 118 174
Oil charge / comp L 1.1 1.3 1.6
Oil type POE
CONDENSER Air cooled – heavy duty – high ambient design
Material Aluminum, blue fin on copper tube
Tube diameter Inch 3/8
Fin spacing mm 2.1
CONDENSER FANS External, axial fans, 4 pole – speed controlled
Fan speed Rpm 900
Fan diameter mm 630 630 630
No fans 2 2 2
Total power input kW 2.7 2.7 2.7
Total running current Amps 4.4 4.4 4.4
Total air flow M3/ hr 23000
EVAPORATOR Shell and tube – DX
No. refrigeration circuits
Chilled water flow rate l/s 3.0 3.3 4.2
Pressure drop kPa 50
Inlet / outlet CHW Temperature C 10/05
Working temperature range C 05/20
Water connections mm 50 50 50
Evaporator protection Flow switch
CONTROLLER PLC
HP Safety 2850kPa LP Safety 375kPA
Shipping weight – dry Kg 785 850 875
Buffer Tank Litres
BMS protocols Buffer tank construction

 

Model XA.4.40.SY XA.4.50.SY XA.4.60.SY
System type Chiller Heat rejection Air
Capacity TR 34.5 39.5 50.4
R407c Btu/hr 104232 119368 152392
10C water supply kW 121.2 138.8 177.2
35C ambient EER (kW/TR)
Capacity control % 0-25%-50%-75%-100%
Refrigerant Type R407c
Total power input kW 34.2 37.8 49.6
Total running current Amps 62.6 68.8 102.4
Power requirements V/Hz/Ph 380-415/50/3
COMPRESSOR Scroll Hermetic
Motor size HP 4 x 10 4 x 12.5 4 x 15
RPM 1/min 2900
QTY 4 4 4
Maximum Power input kW 14.4 32.4 22.1
Total running current Amps 27.4 60.0 93.6
MCC/ comp Amps 26.9 31.0 42.0
Rated load current / comp Amps 17.2 19.9 26.9
Locked rotor amps Amps 118 118 174
Oil charge / comp L 1.1 1.3 1.6
Oil type POE
CONDENSER Air cooled – heavy duty – high ambient design
Material Aluminum, blue fin on copper tube
Tube diameter Inch 3/8
Fin spacing mm 2.1
CONDENSER FANS External, axial fans, 4 pole – speed controlled
Fan speed Rpm 900
Fan diameter mm 630 630 630
No fans 4 4 4
Total power input kW 5.4 5.4 5.4
Total running current Amps 8.8 8.8 8.8
Total air flow M3/ hr 46000 46000 46000
EVAPORATOR Shell and tube – DX
No. refrigeration circuits
Chilled water flow rate l/s 6.0 6.6 8.4
Pressure drop kPa 50
Inlet / outlet CHW Temperature C 10/05
Working temperature range C 05/20
Water connections mm 100 100 100
Evaporator protection Flow switch
CONTROLLER PLC
HP Safety 2850kPa LP Safety 375kPA
Shipping weight – dry Kg 1135 1230 1450
Buffer Tank Litres
BMS protocols Buffer tank construction

 

Model XA.2.40.SY XA.2.50.SY XA.2.60.SY
System type Chiller Heat rejection Air
Capacity

 

TR 33.4 41.9 51.3
R407c Btu/hr 400121 502540 615202
10C water supply kW 117.2 147.2 180.2
35C ambient EER (kW/TR)
Capacity control % 0-50%-100%
Refrigerant Type R407c
Total power input kW 34.4 41.4 51.9
Total running current Amps 59.6 73.6 91.0
Power requirements V/Hz/Ph 380-415/50/3
COMPRESSOR Scroll Hermetic
Motor size HP 2 x 20 2 x 25 2 x 30
RPM 1/min 2900
QTY 2 2 2
Maximum Power input kW 29.0 36.0 43.8
Total running current Amps 50.8 61.0 77.8
MCC/ comp Amps 53.0 64.8 83.0
Rated load current / comp Amps 34.0 39.1 53.2
Locked rotor amps Amps 225.0 272 310
Oil charge / comp L 2.0 2.5 3.5
Oil type POE
CONDENSER Air cooled – heavy duty – high ambient design
Material Aluminum, blue fin on copper tube
Tube diameter Inch 3/8
Fin spacing mm 2.1
CONDENSER FANS External, axial fans, 4 pole – speed controlled
Fan speed Rpm 900
Fan diameter mm 630 630 630
No fans 4 4 6
Total power input kW 5.4 5.4 8.1
Total running current Amps 8.8 8.8 13.2
Total air flow M3/ hr 46000 46000 69000
EVAPORATOR Shell and tube – DX
No. refrigeration circuits
Chilled water flow rate l/s 5.8 7.1 9.0
Pressure drop kPa 50
Inlet / outlet CHW Temperature C 10/05
Working temperature range C 05/20
Water connections mm 80 100 100
Evaporator protection Flow switch
CONTROLLER PLC
HP Safety 2850kPa LP Safety 375kPA
Shipping weight – dry Kg 1225 1475 1670
Buffer Tank Litres
BMS protocols Buffer tank construction

 

Model XA.4.80.SY XA.4.100.SY XA-4-120.SY
System type Chiller Heat rejection Air
Capacity TR 66.7 83.7 102.5
R407c Btu/hr
10C water supply kW 234.4 294.4 360.4
35C ambient EER (kW/TR)
Capacity control % 0-25%- 50%- 75% -100%
Refrigerant Type R407c
Total power input kW 68.8 82.8 103.8
Total running current Amps 119.2 147.2 182
Power requirements V/Hz/Ph 380-415/50/3
COMPRESSOR Scroll Hermetic
Motor size HP 4 x 20 4 x 25 4 x 30
RPM 1/min 2900
QTY 4 4 4
Maximum Power input kW 58 72.0 87.6
Total running current Amps 101.6 122 145.6
MCC/ comp Amps 53.0 64.8 83.0
Rated load current / comp Amps 34.0 39.1 53.2
Locked rotor amps Amps 225.0 272 310
Oil charge / comp L 2.0 2.5 3.5
Oil type POE
CONDENSER Air cooled – heavy duty – high ambient design
Material Aluminum, blue fin on copper tube
Tube diameter Inch 3/8
Fin spacing mm 2.1
CONDENSER FANS External, axial fans, 4 pole – speed controlled
Fan speed Rpm 900
Fan diameter mm 630 630 630
No fans 6 6 8
Total power input kW 8.1 8.1 8.1
Total running current Amps 13.2 13.2 13.2
Total air flow M3/ hr 69000 69000 69000
EVAPORATOR Shell and tube – DX
No. refrigeration circuits
Chilled water flow rate l/s 11 14 17.5
Pressure drop kPa 50
Inlet / outlet CHW Temperature C 10/05
Working temperature range C 05/20
Water connections mm 100 125 125
Evaporator protection Flow switch
CONTROLLER PLC
HP Safety 2850kPa LP Safety 375kPA
Shipping weight – dry Kg 2175 2575 2750
Buffer Tank Litres
BMS protocols Buffer tank construction

Dimension

 

 

Chiller nomenclature

Pump data

Pump Model Current Drw – 3 Ph Motor rating – kW Weight
P7 3.0 1.2 28.4
P8 4.6 2.2 35.9
P9
RPM 2900
Approvals CE WRAS,ACS,TR,EAC
Housing Cast iron
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

  • helping protect the compressor from excessive starts
  • preventing thermal spikes impacting on the compressor
  • allows closer temperature tolerance to the process
  • having stored chilled water to allow a managed shut down of a process should there be a problem with the cooling cycle
  • allows for a vented design and prevent the need for a hydronics kit

All Thermex process industrial chillers are supplied with high efficiency scroll compressors supplied by Copeland. The scroll compressor is the latest in compressor technology

All Thermex water chillers use R134a refrigerant – R134a is a contemporary refrigerant with a low global warming potential.  R134a refrigerant also has the benefit of being a low-pressure refrigerant gas – this allows Thermex chillers to operate in extreme ambient conditions- up to 52°C. Chinese and European manufactured chillers are rated at 35C ambient condition and are generally supplied with condensers that are not suited to these extreme conditions.

Installation

There are certain guidelines that need to be followed to ensure the chiller operates properly and reliably. When considering the purchase of a chiller the site should be prepared so the chiller can be installed an operated reliably

The chiller should also be installed on a level firm surface and should be bolted down to prevent the unit moving. It is not necessary to install the chiller with spring vibration eliminators – waffle pad is suffice to prevent vibration from the unit

The water pipe work too and from the chiller should be properly insulated to prevent sweating and to ensure the chiller operates as efficiently as possible

There should be adequate space around the chiller to allow proper ventilation of the cooling fans – the chiller should not be installed under an awning or installed indoors if there is not proper ventilation.

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

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 with Blygold to extend their life – the coil will lose efficiency if the bond between the copper and the aluminum starts to break down and Blugold will prevent this

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
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

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

 

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