Industrial Chillers 30 – 50KW

The S series Chillers are designed to cool processes with small heat loads.

They 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

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Category: COMMERCIAL CHILLERS

The S series Chillers are designed to cool processes with small heat loads.

They 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 40L 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 industries 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

450kw 1

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.

application

Technical Data

Model		TC30A3	TC40A3	TC50A3
System type	Chiller	Heat rejection		Air
Capacity ASHRAE CONDITIONS	TR	8.9	11.7
	Btu/hr
	kW	29.5	39.0	48.9
	EER (kW/TR)
Capacity control	%	0-100%
Refrigerant	Type	R134a
Total power input	kW	12.56	16.5	19.66
Total running current	Amps	27.73	31.43	37.13
Power requirements	V/Hz/Ph	380-415/50/3
COMPRESSOR	Scroll Hermetic	Start method		DOL
Motor size	HP	15	20	26
RPM	1/min	2900
QTY		1
Maximum Power input	kW	9.2	12.2	15.3
Total running current	Amps	20.5	22.6	28.3
MCC/ comp	Amps	42.0	47.0	49.0
Locked rotor amps	Amps	174.0	225	272
Oil charge / comp	L	2.0	2.5	3.0
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	2.1
CONDENSER FANS	External, axial fans, 4 pole – speed controlled
Fan speed	Rpm	900
Fan diameter	mm	500
No fans		3
Total power input	kW	2.16
Total running current	Amps	4.23
Total air flow	M3/ hr	21500
EVAPORATOR	Plate heat exchanger
No. refrigeration circuits		1
Chilled water flow rate	l/s	1.5	1.9	2.4
Pressure drop	kPa	50
Inlet / outlet CHW Temperature	C	12/07
Working temp range	C	05/20
Water connections	mm	1 ½” FBSP
Evaporator protection		Flow switch
Expansion		TX Mechanical
CONTROLLER	Standard electronic – Dixell
HP Safety	2850kPa	LP Safety		375kPA
Shipping weight – dry	Kg	550	600	650
Buffer Tank	Litres	500
BMS protocols	–	Buffer tank construction		Stainless steel

Dimension

TC30 to TC50 Units

Closed loop chillers – 30 to 50kW Units

Chiller nomenclature

Pump data

Pump model	Current draw – 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.