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Modular Coach Rooftop HVAC (Model B)

Ref no. COACH ROOFTOP HVAC

Modular coach rooftop HVAC (Model B)

Roof mounted modular heating, ventilation & air-conditioning system (HVAC) to supply 30 kW cooling and 10 kW of heating, to ensure a cabin temperature of 25°C max in a 60°C ambient provided the coach is thermally insulated. The HVAC system is a dual circuit design with dual compressors (15kW x 2) for redundancy and capacity control. The system has 10kW electric heating which can easily be increased to 20kW should a very low ambient of below -20°C be applicable.

The HVAC system does not restrict the standard operational features of any coach type and stays within the standard gauge set. The stainless and aluminium fabricated HVAC unit is protected with a sheet metal cover which matches the style and colour of the coach. For best results 2x rooftop HVAC units must be installed per coach (60kW total cooling), 1x on each end of the coach. The rooftop HVAC system is qualified to international standard EN15085.

All electrical components and switch gear are housed in the control panel installed in the electrical control room of the coach, with limited electrical parts in the rooftop unit. This means that faults can be determined without needing access to rooftop HVAC unit. All faults and trips can easily be address from the accessible control box, without needing to open the rooftop HVAC unit.

All electrical connections, looms and the electronic control panel as well as electrical control gear are designed and selected for operation in the railway environment, which include adverse temperatures as well as severe shock and vibration.

The HVAC unit is equipped with custom designed electronic controllers, with extra safety features for the extreme maximum ambient of 60°C. The touch screen controller activates sub systems as required to regulate the cabin temperature to the desired setting on the control panel (HMI). The system has a Bluetooth login interface for remote monitoring via a smart phone app and/or laptop.

 

PRODUCT SPECIFICATIONS

Cooling Capacity

30 kW/unit @ 60°C ambient (60kW per coach)

Maximum Ambient

65°C

Minimum Ambient

-10°C

System Power Input

400 VAC; 39 A Cooling; 18A Heating

Refrigerant

R134A

Aircon Air Flow Rate

>3000 m3/h variable

Fresh Air Supply

900 m3/h

Primary Filter

Cyclone primary and Pleated Media secondary Filter

Fault Finding

Bluetooth & HMI

Network

CAN Bus

Dimensions

2005mm L x 2059mm W x 425mm H

Weight

800kg

Compressor

Bitzer Horizontal Scroll

OPTIONAL EXTRAS

Heating Capacity

10kW Electric Heating per unit, 20kW per coach

Data Logging

Data Logging through LoRa onto Remote Server

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