INTARCON ASF-DN-23044A split refrigeration system with double-flow evaporator

Cooled food preparation and working rooms

INTARCON ASF-DN-23044A is a split system for cooled working rooms. This higher-temperature range is intended for cooled working rooms. The evaporator supplies air through both sides of its coil. Its fan arrangement promotes smoother circulation with less turbulence, making it a useful choice where people work and direct draughts need to be limited.

Practical benefits

• Double-flow air supply: serves both sides of the working area. Check air velocity before locating the unit directly above a permanent workstation.
• Working-room sizing points: are published at +9, +12 and +15 °C. A cold-room capacity measured at 0 °C is not an equivalent comparison.
• Remote electronic control: allows the room setpoint to be selected and monitored from a convenient location. The controls and refrigeration components form a factory-matched package.

Construction designed for servicing

Removable grilles provide access to the fan and coil; Sigilus fan quick connectors simplify removal. The electrical panel has separate access from the refrigeration compartment. Side pipe connections and an accessible safety valve support installation and maintenance. The illustration shows the range construction. R455A is an A2L refrigerant. Assess installation location, permissible charge and room conditions using the exact model instructions. Factory pre-charge covers up to 10 m; longer runs require the manufacturer line-sizing and additional refrigerant/POE oil table.

View the construction illustration

Range configuration and selection limits

Working-room load calculations must include people, lights, process equipment, ventilation and open doors. Room volume alone is insufficient. Provide operating hours and the main sources of heat and moisture before equipment selection.

The low-noise Sigilus design combines an insulated compressor compartment, lower-speed fans and vibration isolation. The catalogue specifies the compressor sound jacket for standard three-phase Danfoss compressors; it must not automatically be assumed for every single-phase model. Removable panels provide service access.

Condensing unit location and installation

An axial-fan unit needs unobstructed air intake and discharge. Avoid an enclosed, unventilated recess. Where ducted heat rejection is necessary, select a suitable centrifugal configuration and check its own technical ratings.

The manufacturer specifies a maximum vertical separation of 15 m with the condensing unit above the evaporator, or 6 m with it below. These are elevation limits, not pre-charge pipe lengths. Provide a trapped, sloping condensate drain and follow the installation drawing for refrigerant piping and oil return.

How to size this model

Published capacity points for this factory model: +9, +12, +15 °C. In the specification, compare capacity and estimated room volume at the same room temperature. Cooling capacity is not electrical input. Provide internal room dimensions, insulation, ambient temperature, daily product load and incoming temperature, door-opening frequency and the proposed pipe route. An unpublished operating point must not be substituted by a rating at a different temperature.

Dimension drawing

Unit interconnection principle

Supply scope and documentation

Supply covers the factory condensing unit, evaporator and range-specific controls. The cold-room enclosure, site copper pipework and insulation, electrical installation and commissioning are planned separately. Pre-charge for 10 m does not itself mean that pipes or all interconnecting cables are supplied.

Manufacturer catalogue, printed p. 297. Range and filter selection guide.