The vacuum engine and high pressure water pump are driven by a hydraulic oil system. The water pump system develops a powerful 150/bar of pressure and produces 15 l/min. (standard) or a pressure of 200/bar for a water production of 18 l/min. (optional). The washing system is fitted with a device that automatically mixes the sanitary concentrate to ensure indepth cleaning. The vacuum engine reaches its optimum vacuum rating for the suction of the waste in just 30 seconds and pumps 2.000 l/ min. waste (standard) or 3.000 l/ min. (optional).
The service module can be equipped with a system for producing hot water to heat the entire load of washing water up to a temperature of 94°C by means of a dedicated oil-burning boiler. An odour control system using a micro-pump doser to mix deodorant fragrances can be easily added.
The service modules are entirely manufactured by Armal to ensure top quality. Armal service modules may be configured with assembly crossway to the axle of the vehicle (Armal 1000T and 1300T) so as to permit the loading of extra toilets onto the truck bed or with longitudinal assembly (1000L and 1300L). The transversal vacuum modules can be power-driven with PTO connection for vehicles fitted out and supplied directly by Armal; alternatively they are powered by an auxiliary combustion engine (13 Horse power) and they can be installed on customerowned trucks.