Auxiliary HVAC Ram ProMaster


High performance aftermarket heating and cooling systems engineered for vehicle specific platforms that minimize install time and maximize reliability.

Standard Tie-in HVAC | London

The London is a low profile, rear heating and cooling unit that packages into the driver’s overhead compartment designed to deliver conditioned air rearward into the cargo space. The placement of the London offers convenience as well as minimal refrigerant, coolant and condensate drain plumbing and wire harness routing.

Specifications London



Cooling Capacity

32,500  BTU/h (9.5 kW)
Heating Performance 44,500 BTU/h (13.0 kW)
Refrigerant R134A
Nominal Voltage 12V
Max. Power Consumption @ 12V 21 A
Max. Air Flow Evaporator Blower 471 cfm (800 m3/h)
Dimensions L x W x H 21.7 x 15.7 x 7.1 in (550 x 400 x 180 mm)
Weight 17lbs. (7.7 kg)

Product Specifcations

London_Thumbnail_01Vehicle Integration – Cooling
The London HVAC is tied into the Ram ProMaster OEM front HVAC for cooling and utilizes the vehicle’s existing in-line condenser and compressor. ProMasters have optional factory rear A/C prep kits that allow or easy integration with the factory front HVAC.

Vehicle Integration – Heating
Heating is achieved by plumbing the London’s hot water heater core to the vehice’s engine coolant loop. Hot water flow is controlled by Webasto hot water valve and auxiliary pump.

London_Controller_01Control Unit
Controller with on/off switch, variable fan speed and variable temperature control is standard. The controller is packaged in-dash, or can be located anywhere inside the vehicle.

Extreme Climate Stand Alone HVAC | Capri

For applications that require maximum cooling capacity, the Extreme Climate Stand Alone HVAC shares the same components as the Standard Tie-in Rear HVAC system (London), with the addition of an auxiliary engine driven compressor, compressor mount kit and a roof mounted/low-profile condenser (Capri).






35,800  BTU/h (10.5 kW)
Nominal Voltage 12V
Max. Power Consumption @ 12V 18 A
Dimensions L x W x H 32 x 23.6 x 5.9 in
Weight 26.5 lbs. (12 kg)

Product Specifcations

Capri_01Vehicle Integration – Cooling
London Rear HVAC is integrated with an independent refrigerant loop consisting of auxiliary compressor and Capri condenser. For minimal install time and plumbing routing, the Carpi condenser can be mounted directly above the London Rear HVAC system on the roof of the vehicle. Under chassis mount condensers are also available.

Vehicle Integration – Heating
Heating integration an function is identical to Standard Tie-in Rear HVAC