SME

Since 1991

HVAC Railway

SME Designs include stand-alone modular roof mount, front-panel mount, ruggedised split and under-sling environmental control systems (ECS) for drivers, sitter and sleeper cabins, cooling of equipment, walk-in freezers, under-counter fridges and high capacity / fast freezers.

All units for rolling stock are developed to operate reliably under extreme temperatures, humidity, shock and vibration, and dusty environments. To live up to this standard, all units are performance tested in our climate-control room, as well as being vibration and EMC tested where necessary to ensure optimum performance and compliance with the relevant specifications and procedures.

These custom train HVAC systems can be found in locomotives and coaches, including 6E/18E, 7E, 9E, 11E, Diesel 34 loco, Diesel 39 loco, Metro 10M5, Shoshaloza-Meyl, Blue Train and PelaPepa.

SME offers comprehensive product support with detailed documentation and reliable spare part availability for up to 15 years if required. In South Africa we have established our own dedicated support facilities in Pretoria, Johannesburg, Cape Town, East Londen, Durban, Richardsbay, Kimberley, Nelspruit and New Castle.

SME promotes in-house innovative engineering which includes developing state of the art electronic controllers for all our HVAC units. We pride ourselves in our latest invention known as the Multi-Application Controllers (MAC) System.

Please select the type of application for your HVAC System.

Locomotive Cabin HVAC Systems
Coach / Saloon HVAC Systems
Ventilation & Fresh Air Systems
Heater Systems

back top... Locomotive Cabin HVAC Systems

Units are generally of modular design for service exchange within 30 minutes and can be front-panel mount or packaged roof units. Where required, split designs are integrated with either under-sling condensing units or installed in the motor room behind the cabin. Cabin evaporators of split units can be wall or floor-mounted modules or custom integrated in the driver's console.

SERIES

MODEL

COOLING CAPACITY1

HEATING CAPACITY

INPUT VOLTAGE

DIMENSIONS

SLIM DESIGN RAILWAY SERIES SDR 60 6kW 4kW 380 VAC 800 x 400 x 1150
SDR 80 8kW 6kW 380 VAC 800 x 400 x 1300
COMPACT DESIGN RAILWAY SERIES   6kW 4kW 380 VAC 750 x 750 x 500
  8kW 6kW 380 VAC 750 x 750 x 500
ROOF SUNKEN LOCOMOTIVE SERIES RRA 7E 6.5kW 4kW 380 VAC 980 x 890 x 373
RRA 9E 8kW 5kW 380 VAC 980 x 890 x 373
ROOF MOUNTED LOCOMOTIVE SERIES RRA 34 6.5kW 4kW 380 VAC 1040 x 1400 x 272
RRA 11E 8kW 5kW 380 VAC 1289 x 1448 x 254

back top... Coach / Saloon HVAC Systems

For saloon ventilation and air conditioning, multiple modular or split units can be offered or single roof mounted to suit specific car designs. The latest technology high-efficiency scroll compressors are used in tandem for redundancy, as well as effective capacity control in accordance with the load. Heating can be supplied by evaporator integrated elements, separate heating or reverse cycle heat pump design.

Special fresh air filtration modules can be added for heavy-duty and dusty environments, where self-cleaning cyclone cartridges ensure at least 95% clean air to occupants. CO2 sensors add to energy-efficient designs for dense metro applications to adjust volume flow and cooling capacity to actual levels required.

SERIES

MODEL

COOLING CAPACITY1

HEATING CAPACITY

INPUT VOLTAGE

DIMENSIONS

SPLIT SYSTEM RAILWAY SERIES DRA SM 8kW 5kW 380VAC COND: 960 x 510 x 752
EVAP: 1052 x 210 x 310
DRA MR 4.5kW 3kW 380 VAC COND: 1600 x 720 x 336
EVAP: 1052 x 210 x 310
DRA RG 9kW 6kW 380 VAC EVAP 915 x 281 x 713
BODCA          

back top... Ventilation & Fresh Air Systems

Various custom ventilation systems have been supplied for either ventilating electrical panels or for fresh air supply. SME has developed a sophisticated filtration system to allow for minimum maintenance requirements. 

Read more on our Ventilation & Fresh Air Systems

back top... Heater Systems

SME offer heater systems with different heating capacities. These are mounted under floor or in-line with ducting systems. Special precautionary measurements have been taken to ensure the heater elements do not heat to extreme temperatures.

SERIES

MODEL

COOLING CAPACITY1

HEATING CAPACITY

INPUT VOLTAGE

DIMENSIONS

THREE STAGE HEATERS FH 21 N/A 2.1kW(max) 220 VAC/ 380 VAC/ 74VDC 360 x 220 x 200
FH 42 N/A 4.2kW(max) 220 VAC/ 380 VAC/ 74 VDC 700 x 220 x 200
FH 63 N/A 6.3kW(max) 220 VAC/ 380 VAC/ 74 VDC 700 x 400 x 200
FH 63L N/A 6.3kW(max) 220 VAC/ 380 VAC/ 74 VDC 1000 x 220 x 200