INDOOR WATER CHILLER

LTZ M variable frequency series

Cooling capacity @20℃3kW~87kW
RefrigerantR407C
Place of OriginChina

chillers ultra low temperature chiller water cooled chiller

It is suitable for the target temperature control object that already has a cold storage tank and a circulating pump. The medium is transported to the LTZ M series refrigeration unit through the circulating pump, which is a closed-loop refrigeration system.

Industry temperature control solutions

LTZ variable frequency chiller

The variable frequency compressor unit changes the operating speed of the DC compressor at any time according to the user’s cooling and heating load requirements through the built-in frequency conversion device. The variable frequency unit adopts advanced frequency conversion technology to accurately control the compression and fan operating speed.

DETAIL ADVANTAGE,STRIVING FOR EXCELLENCE

Parameter

Model	LTZ-1 M	LTZ-3M	LTZ-6M	LTZ-15M	LTZ-25WM
		LTZ-3WM	LTZ-6WM	LTZ-15WM
Temperature range	5 ℃～30℃ (Use ethylene glycol water solution below 10℃)
Temperature control accuracy	±0.5℃
Temperature feedback	Pt100
Cooling capacity at 20℃	3kW	10.5kW	21kW	52kW	87kW
Compressor	Mitsubishi, Hitachi	Variable frequency compressor
Throttling method	Thermal expansion valve	Electronic expansion valve
DI heat exchanger	Plate heat exchanger
Input, display	4.3-inch touch screen	7-inch color touch screen\ PLC controller
Communication	Modbus RTU protocol RS485 interface
Safety protection	It has self-diagnosis function; refrigerator overload protection; high and low voltage protection, overload relay, thermal protection device, exhaust and suction temperature protection, sensor fault protection and other safety protection functions.。
Refrigerant	R407C
Interface size	G1/2	G3/4	G3/4
Water-cooled type @20℃	600L/H	1800L/H	3600L/H	9000L/H	15000L/H
		G3/4	G1	DN32 PN10	DN40 PN10
Water-cooled condenser	The condenser of the water-cooled equipment uses a plate heat exchanger and requires a closed cooling tower for water supply
Air-cooled condenser	Microchannel heat exchanger
Power supply	380V 50HZ can choose three-phase 220V 460V
Contact pipe material	SUS304
Casing material	Cold rolled plate sprayed (REL7035)

WIND COLD WATER COLD ON DEMAND SELECTION

The circulating fluid from the pump is cooled by the customer’s equipment and then returns to the thermostat. The circulating fluid passes through the refrigeration circuit, reaches the set temperature, and is then output to the customer’s device side through the thermostat.

CASCADECOMMUNICATION REMOTE OPERATION

According to the serial communication remote control signal input and output, one of the contact inputs can be remotely operated using serial communication for remote operation, and the other is used to monitor the flow through the flow switch and read the alarm output.

Alarm, operating status (start, stop, etc.)

Signal output
The alarm and status inside the temperature controller can be divided into 3 output signals according to their content.

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