FKS-KWS Chiller for Liquids

Chiller

Benefits

Compact design
ATEX/CSA certified
Ambient temperature range of -20 °C to +55 °C (-4 °F to +131 °F)
Various refrigerating capacities

Marking

Marking ATEX:
Ex II 2G IIC T3 or T4 Gb (chiller)
EX II 2G Ex d e [ia] IIC T4 Gb (control unit)
Certification: TÜV 06 ATEX 2958
Marking
NEC 500: Class I, Div. 2, Group B, C or D, T3 or T4
NEC 505: Class I, Zone 1,
Chiller: AEx px mb de IIB+H2 T3 or T4
Control Unit: AEx px de [ia] IIB+H2 T4
CEC section 18:
Chiller: Ex px mb de IIB+H2 T3 or T4
Control Unit: Ex de [ia] IIB+H2 T4
Certification: CSA 2066361

Ambient Temperature

T3 or T4

Description

The closed loop chillers consist of an air-cooled high performance condenser combined with an encapsulated compressor. They are suitable for the installation in explosive gas atmospheres defined as Zone 1. The electrical control system is supplied with its own Ex d housing. Optionally, with an analyzer, the control system can be placed inside the Ex p housing of the analyzer. Problems on-site where utilities supplied cooling water is of a lower quality or special requirements of cooling water are needed, closed loop chillers can be applied to meet these applications. The chillers can be supplied with diverse refrigerating capacities which allow the chillers to be used on single analyzers up to complete analyzer houses, peltier elements and heat exchangers. They can be delivered suitable for indoor or outdoor use. Depending on the flow rate required, different pump capacities are also available.

Refrigerating capacity at coolant temperature, water outlet	FKS 0.5-KWS typical 500 W at -35 °C (-31 °F) FKS 1.4-KWS typical 1.4 kW at +15 °C (+59 °F) FKS 2.4-KWS typical 2.4 kW at +10 °C (+50 °F) FKS 4-KWS typical 4 kW at +10 °C (+50 °F) FKS 6-KWS typical 6 kW at +10 °C (+50 °F) FKS 10-KWS typical 10 kW at +10 °C (+50 °F)
Refrigerant	R134a (R449a FKS 0.5-KWS)
Coolant	temper/water/glycol (depending on application)
Coolant temperature range	FKS 0.5-KWS -35 °C to +10 °C (-31 °F to +50 °F) FKS 1.4-KWS to FKS 10-KWS -5 °C to +28 °C (+23 °F to +82 °F)
Circulation pump capacity ±10 %	FKS 0.5-KWS 400 l/h, 2 to 3 bar FKS 1.4-KWS 360 l/h, 2 to 4 bar FKS 2.4-KWS 450 l/h, 2 to 4 bar FKS 4-KWS 600 l/h, 2 to 4 bar FKS 6-KWS 1000 l/h, 2 to 3 bar FKS 10-KWS 1500 l/h, 2 to 3 bar
Power consumption (effective power)	FKS 0.5-KWS 3.7 kW FKS 1.4-KWS 1.8 kW FKS 2.4-KWS 2.3 kW FKS 4-KWS 3.2 kW FKS 6-KWS 4.3 kW FKS 10-KWS 6.5 kW
Ambient conditions	standard: +5 °C to +40 °C (+41 °F to +104 °F) Option: -20 °C to +55 °C (-4 °F to +131 °F) FKS 0.5-KWS +5 °C to +35 °C other ranges on request IP 54 (IP 65 on request) (comparable NEMA 12, NEMA 3 on request
General alarm/fault indication	potential-free contact (1 NC + 1 NO)
Tube fittings	FKS 0.5-KWS to FKS 2.4-KWS, ½ inch NPT FKS 4-KWS to FKS 10-KWS, depending on application
Weight, dimensions (HxW D)	FKS 0.5-KWS: 600 x 960 x 530 mm 150 kg FKS 1.4-KWS: 500 x 960 x 530 mm 150 kg FKS 2.4-KWS: 600 x 960 x 530 mm 160 kg FKS 4-KWS: 1000 x 1100 x 700 mm 260 kg FKS 6-KWS: 1100 x 1100 x 700 mm 290 kg FKS 10-KWS: 1200 x 1100 x 700 mm 310 kg