Specifications

Air Source Heat Pump
With Screw Compressor
Heating&Cooling, Domestic Hot Water
CE Certificate, ISO
Large Capacity Range

Air Source Heat Pump (LTLF Series with Screw Compressor)

 

LTLF Series Screw Compressor Air Source Heat Pump, Air to Water Heat Pump for Air Conditioning Heating and Cooling

-Air Source Heat Pump Type, for Heating, Cooling and Domestic Hot Water;

-Air Cooled Water Chiller Type, for Cooling Only

-Screw Compressor Adopts, Semi Hermetic Type;

-Air Cooled V-type or U-type Condenser;

-Shell and Tube type or tube in tube type evaporator;

-Refrigerant Control: Thermal expansion valve

 

Model Details:

TECHNICAL DESCRIPTION

Refrigerant: R22, R407C, R134A, R410A Etc.

Nominal cooling working condition:

1) Condenser inlet temperature DB 35 °C, WD 24 °C.2) Evaporator inlet temperature 12°C, outlet temperature 7 °C

Nominal heating working condition:

1) Condenser inlet temperature DB 7 °C, WD 6 °C.2) Evaporator inlet temperature 40°C, outlet temperature - °C

Fin type air-cooled condenser

Fin type air-cooled condenser adopts imported high purely, seamless screw thread copper and special aluminum fin after mechanical expanding joint closely. It ensures fin type condenser work in best efficiency.

Tube in tube and Sell and Tube type evaporator

1)It is tube in tube and Sell and Tube structure with new developed fire-proof and water-proof material as heat preservation. The water-side working pressure may reach to 2.0 MPa.

2) There is PVC engineering plastic breakwater inside of evaporator with strong anti-corrosion ability. Chilling water circuitous goes up and down to increase tumble effect, and heat exchange ability.

3) Adopt new technology DAC weave interior screw threat, high efficient heat exchange tube to ensure good cooling characters.

Semi-hermetic screw compressor

The unit uses imported semi-hermetic screw type compressor. Comparing piston type compressor, the semi-hermetic screw type compressor has following advantages:

1) Less accessories (Approximately 1/3 of piston compressor). The unit structure is simply and long service life).

2) The unit EER ≥3.1W/W;

3) Screw type compressor may adjust energy in range 25% - 100%.

Four-way valve

LVTE heat pump type air-cooled water chiller adopts PE four-way valve from Unit State, so that solves reversing

and system consume great problem exist in other same kind of products.

Condenser

1) Axial fan, protection grade reached IP55. long service ling and reliable.

2) External rotator and blades combined into integrity. Design compact, run in high speed and low noise.

 

Model Specification: LT   LF -- 30     A     H     S

LT--LVTE Company Products Code     LF--Screw Compressors  

30--Normal Cooling Capacity(Compressor HP)   A-Air Cooled Type  

H-Heat Pump Type Heating&Cooling       S(D)--Single(Double) Screw Compressor(s)

 

Remark:1.Colling Condition:Chilled water in/out 12/7°C; Environmental 35°C;

Heating Condition: Heat water in/out 40/45°C,Environment dry bulb temperature 7°C,wet bulb temperature 6°C;

2.Power supply: 3P-380V-50HZ;with voltage allowance ±10%,voltage dif between the phase lines±2%;

3.The data above is for R22, contact us if that for R134a, R407C and other refrigerant need;

4.There may be Changes for improvement without notice, confirm always before your order.

 

Single Screw Compressor Models: LTLF30AHS-LTLF140AHS

Cooling Capacity:87-500KW/Heating Capacity:98-548KW

 

 

Double Screw Compressors Models: LTLF60AHD-LTLF280AHD

Cooling Capacity:174-1000KW/Heating Capacity:196-1096KW

 

 

FEATURES OF AIR-COOLED SCREW TYPE WATER CHILLER AND HEAT PUMP

Wide capacity range:

1) The various type units with range of cooling capacities from 100KW – 1140KW;

2) Each one has cooling only and cooling (heating) type;

3) There are integrity and modular structure;

4) Each one has regular computer control type and luxury computer control type;

5) Provide optional components of auxiliary electrical heater, build-in water pump, and paddle flow switch etc. according to customer requirements.

6) The unit may use no-standard refrigerant. It may be low water temperature type glycol for air-cooled water chiller unit, or double refrigerants unit, air-cooled compress condensing unit, etc. Please contact us for detail.

The unit has high efficient, less energy consume, and low operating fee features.

LVTE imports brand high EER semi-hermetic crew type compressor, condenser, and cooling accessories from world and adopt advance technology in air conditioning and control. High quality process equipments and testing-center to ensure the units have energy saving and reliable features.

Unit protection components

The units have thermal protection switch, overload relay, high/low pressure switch, paddle flow switch and delay-starting protection devices to ensure unit runs under safety, reliable working condition and unit is easy to maintain and repairing.

Modular design

Multi-modular units adopt module combined structure to increase unit’s flexibility in transportation, installation, adjustment and maintain and reduce fee for transportation, installation and equipment maintain.

Super low noise, operating quietly

1) Semi-hermetic screw compressor has operating steady, low noise, and less vibration features.

2) Brand condensing axial fan is used in the unit. The blades and exterior-rotor motor design integrally. The unit structure is simply with good air dynamic features and to ensure fan works under low noise and high efficiency.

Advance control system, steady quality and reliable features.

1) Micro-computer control intelligently, English display, and friendly interface. Operating information is clear at a glance.

2) High automatic management with completely features to realize unit start up and shut down, timing control, water pump control, malfunction alarm and self-diagnosis features. It has RS485/RS232 communication port and convenience for centralize controlling and lone distance monitoring and long distance control.

3) Micro-computer and electrical control elements are brand products and imported from world. The products has good quality, and reliable features.

4) Micro-computer controller defrosts intelligently with accuracy and efficiency. The controller also has self-diagnosis, energy management; anti-freeze and operating mode automatically control abilities. The unit has protections of high/low pressure, anti-freeze, oil temperature, overload, phase sequence, and water lacking to ensure unit run safety.

Nice outline

1) Air-cooled condenser with upside down M shape layout to improve space using ratio, heat exchange area of air-cooled condenser and to reduce unit overall size.

2) The components and system pipes layout reasonable.

3) The shell of the unit pained with statically treatment. The color of shell may design by customer when order is placed. The stainless steel plate is also available for shell.

Save indoor space.

1) The unit may install on roof of the building, ground or other location, where does not need equipment room.

2) The unit uses high efficient heat exchanger. It adopts outdoor structure design and system matching with small volume, lightweight, and less area occupied.

Easy to maintenance

1) The installation of the unit is flexible. It can control at job site and long-distance

2) Open type structure is convenience for maintenance and reduces service space.