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SED-8LFJ-H

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SED-8LFJ-H

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SED-8LFJ-H — Low-Temperature Air-Cooled Chiller

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SED-8LFJ-H Low-Temperature Air-Cooled Chiller (8HP). Industrial chiller using twin sealed scroll compressors with R22 refrigerant. Outlet water temperature down to −35 °C; nominal cooling capacity 22.5 kW @ +5 °C, 2.3 kW

GB/T 3853 (volumetric compressor acceptance test)GB/T 5773 (refrigerant compressor performance)GB 9237 (refrigeration safety)GB/T 21363 (volumetric refrigeration condensing unit)

Délai de livraison

Sur devis

Cadence

2.3–22.5 kW cooling capacity (at +5°C)

Fonctionnement

Vapor-compression refrigeration cycle. Twin scroll compressors draw low-pressure refrigerant gas from the evaporator, compress to high-pressure gas, and send it to an air-cooled finned condenser. Condensate liquid passes through an external-balance thermal expansion valve and re-enters the evaporator coil submerged in the stainless-steel water tank. Chilled water is recirculated by a SUS304 centrifugal pump. Microprocessor adjusts compressor staging based on real-time load to optimize energy consumption.

Processus de fonctionnement

1Vapor-compression refrigeration cycle.

2Twin scroll compressors draw low-pressure refrigerant gas from the evaporator, compress to high-pressure gas, and send it to an air-cooled finned condenser.

3Condensate liquid passes through an external-balance thermal expansion valve and re-enters the evaporator coil submerged in the stainless-steel water tank.

4Chilled water is recirculated by a SUS304 centrifugal pump.

5Microprocessor adjusts compressor staging based on real-time load to optimize energy consumption.

Caractéristiques techniques

Caractéristiques de la variante : SED-8LFJ-H

Caractéristiques

Modèle

SED-8LFJ-H

Cadence

2.3–22.5 kW cooling capacity (at +5°C)

Tension

380V 50Hz 3Φ

Fluides et énergie

3-phase 380V 50Hz power (8.3 kW total, 17.2A); water inlet/outlet 1-1/2" DN40; drain/fill/overflow 1/2" DN15.

Puissance

8.3 kW

Pression d’air

Refrigerant high-pressure gauge 3.8 MPa; pump head 22 m (0.22 MPa)

Dimensions

Longueur

1500 mm

Largeur

750 mm

Hauteur

1660 mm

Poids

300 kg

Emprise au sol

1500×750×1660 mm (L×W×H), weight 300 kg. Mobile on castors.

Matériaux

Matériaux en contact

SUS304 stainless steel (water tank, coil evaporator, centrifugal pump)

Matériaux du bâti

LF-A series steel frame (Dongguan); aluminum-fin / copper-tube condenser; PE pipe insulation

Caractéristiques principales

Twin sealed scroll compressors (3.6 kW each) — 20–30% more efficient than reciprocating

Output water temperature down to −35 °C

Cooling capacity: 22.5 kW @ +5 °C / 9.1 kW @ −10 °C / 6 kW @ −20 °C / 2.7 kW @ −30 °C / 2.3 kW @ −35 °C

Chilled water flow: 4.8 m³/h @ +5 °C / 0.48 m³/h @ −35 °C

Temperature range −35 to +35 °C, ±1 °C accuracy

Microcomputer controller, Chinese/English LCD, physical keypad

External-balance thermal expansion valve

SUS304 water tank coil evaporator (auto-fill), inlet/outlet 1-1/2" DN40

SUS304 multi-stage horizontal centrifugal pump (1.5 kW, 8.3 m³/h, 22 m head, 0.22 MPa)

Twin low-noise external-rotor condenser fans (8000 m³/h total, 0.25 kW each)

Multi-protection: compressor overheat, overcurrent, hi/lo pressure, over-temp, flow, phase loss, low liquid level, anti-freeze

Operating noise 62–65 dB

Auto water replenishment; R22 refrigerant, 4.3 kg charge

High-pressure refrigerant gauge 3.8 MPa

Mobile cabinet on castors

Reaches −35 °C output water temperature (low-temperature specialty)

Twin scroll compressors for redundancy and 20–30% energy savings vs. reciprocating

Compact mobile cabinet on castors

Compliant with GB/T 3853, GB/T 5773, GB 9237, GB/T 21363

13-month factory warranty from dispatch

Applications

Auxiliary cooling for freeze-dryers (lyophilizers)

Injection / blow / extrusion molding mold-temperature control

Chemical / electroplating / electrophoresis process cooling

Plastic packaging / rubber machinery cooling

Machine tool, food processing, vacuum coating, hydraulic-station cooling

Low-temperature reactor / jacketed vessel cooling

Secteurs

Pharmaceutique

Plastics & rubber

Chemical & electroplating

Food processing

Vacuum coating / metallurgy

Machine tool

Marques des composants

Compressor (ZB scroll, sealed): Copeland / Danfoss (USA)

Drier filter (EK series): Alco (USA)

Refrigerant R22: Juhua (China)

Centrifugal water pump (CHM SS): Walrus / Jiedi (Taiwan)

Condenser fan (YWF): Marl / Donli (Taiwan)

Contactor LC1: Schneider (France)

Circuit breaker DZ47: Delixi (Zhejiang, China)

Precision temperature controller SF series: Bonpu (Taiwan)

Refrigerant high-pressure controller YK series: Xinyi Hongsheng (Taiwan)

Refrigerant high-pressure gauge 3.8 MPa: Bida (Taiwan)

Caster wheel 2.5": Yinglun (Dongguan)

Pipe insulation: Huamei (Dongguan)

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Conformité

GB/T 3853 (volumetric compressor acceptance test)

GB/T 5773 (refrigerant compressor performance)

GB 9237 (refrigeration safety)

GB/T 21363 (volumetric refrigeration condensing unit)