Central refrigeration unit for restaurant cars
Lumikko modernises refrigeration systems for existing restaurant cars, including central refrigeration units and cabinets for kitchens and serving areas. Each solution is engineered to fit the vehicle’s existing layout, interfaces and operating conditions while meeting the required refrigeration capacity.
A central refrigeration unit helps maximise the space available for catering operations by relocating refrigeration technology, and the heat it generates, away from the kitchen area. With our solution, multiple refrigerators and freezers can be connected to a single central system, providing an efficient and cost effective solution while extending the operational life of the restaurant car.
Designed for restaurant car modernization
Existing restaurant cars often have very specific space, interface and equipment requirements.
Lumikko designs each central refrigeration unit to fit the available space and provide the cooling capacity required for the kitchen and serving areas. The design takes into account the number and type of refrigeration cabinets, system layout, operating conditions and easy access for maintenance.
Lumikko’s refrigeration solutions are modular and can be adapted to different types of existing restaurant cars. The systems are built using proven standard components and designed for straightforward maintenance, with regularly serviced components positioned for easy access.
In addition to the central refrigeration unit, Lumikko can supply the restaurant car’s HVAC system and refrigeration cabinets.
More usable space and centralized refrigeration
In a centralised system, refrigeration technology can be located in a separate technical space instead of inside individual kitchen cabinets. This helps maximise the space available for catering operations and removes heat generating refrigeration technology from the kitchen area. Multiple refrigerator and freezer circuits can be controlled through one central system, providing an efficient and serviceable solution for restaurant car operations.


Lifecycle partner for existing restaurant car fleets
Our restaurant car refrigeration services are focused specifically on existing rolling stock. As a lifecycle partner, we deliver retrofit, modernisation and overhaul projects that keep refrigeration systems serviceable.
We overhaul existing equipment, replace obsolete components and provide maintenance and spare parts support. When the original equipment can no longer be maintained, we design new central refrigeration units or customised refrigerated equipment specifically for integration into the existing vehicle.
The scope can range from replacing an individual component to modernizing the complete restaurant car refrigeration system. Every solution is adapted to the vehicle’s existing structures, interfaces and available installation space, helping extend the operational life of the fleet.
Lifecycle support
We offer maintenance, modernisation and technical support throughout the system’s lifecycle.
Spare parts partner
Our long standing supplier relationships and extensive technical expertise help us source the right spare parts —even when original components have become obsolete.
Experience in railway applications since 1992
We have decades of experience in designing, manufacturing and maintaining HVAC systems for demanding railway applications.

Example of product configuration
| Circuits (freezer / refrigeration): | 2+2 / 1+1 |
| Refrigerant, freezer circuits: | R404A / R407F |
| Refrigerant, refrigeration circuits | R134A |
| Cooling capacity: | 0,5-4 kW / Circuit |
| Operating voltage: | 110 VDC / 450 VAC |
| Weight: | 350kg / Unit |
Selected reference story