Alfa Laval Optigo CD, Instruction Manual

AHE00046EN 1904

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Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB. 

Alfa Laval reserves the right to change specification without prior notification. 

2  Product description

2.1  General information and application

Optigo CD are commercial dual discharge air coolers for general application in small to medium-

sized cooling, freezing and working rooms. Low air velocity and noise level make them especially 

suitable for refrigerated working and processing rooms. 

•  Refrigerants: HFO/HFC DX (CDE), CO2 DX (CDX) and brine (CDW).
•  Room temperatures: +10 to -30 °C.
•  Capacity range (SC2): 0.8 up to 16.5 kW.
•  Air volume: 600 up to 8400 m

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/h.

Model

Refrigerant

Design pressure

Test pressure

CDE

HFO/HFC

40 bar

57 bar

CDX

CO2

80 bar

114 bar

CDW

Brine

10 bar

14.3 bar

2.2  Standard configuration

•  Innovative coil manufactured from internally grooved Cu tubes and aluminium fins, smooth tub-

ing for brine applications and dedicated thicker tubes for CO

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 application.

•  Optigo CD coolers are available with 1 to 4 fans. Fan diameters 300 or 400 mm blowing through 

the coil. All models are standard fitted with AC fan motors in two fan speed executions (noise 

levels) H/L. EC fan motors optional.  

Motors with dynamically and statically balanced external rotors, manufactured in accordance 

with VDE 0530/12.84. Integrated thermo contacts (Clixon) standard for 3-phase AC motors. All 

single phase motors protected by an integrated internal overload switch. Electronically integrated 

overload protection for EC fan motors.

•  Durable aluminium alloy casing, powder epoxy coated RAL 9002. Hinged lateral driptrays with 

dismountable central drain box. Fully dismountable and openable casing for cleaning purposes. 

Pre-cut passages for multiple choice connections. Internal air deflectors enhance coil efficiency. 

•  All CD300 are delivered in wood-reinforced cardboard boxes, suitable for safe stacking. All 

CD400 models are delivered in wooden crates in mounting position. 

•  Fitted with schräder valve on the suction connection for testing purposes.