The WSH-XSC units belong to the SPINchiller family and therefore feature high energy efficiency, self-adaptation and reliability. Compactness: when designing the unit special attention was paid to reducing the dimensions of the front as much as possible. The width in the units up to 560 kW capacity has been reduced to just 85 cm so that they can pass through normal doorways. Special attention has been paid to making connection to the service system easy so that work requiring specialised personnel is drastically reduced thereby allowing installation costs to be cut considerably. This same policy ensured that attention was paid to easiness of controls and maintenance on all the most sensitive parts. EFFICIENCY that increases as the heating load decreases, while guaranteeing maximum requested load when necessary. SPINchiller always ensures maximum comfort with very high efficiency and consequently considerable energy savings; The particular abundance of optional accessories allows customisation of the unit, also for special requirements both in the civil and technological air-conditioning sphere. In particular the optional for the HydroPack water circulating unit, consistent with the concept of modularity, has several pumps in parallel (up to 3), to monitor the system load variations better and to regulate the water flow in the critical system starting (or restarting) stages so that outside servicing is avoided. The innovative and hi-tech features of SPINchiller give this series a much higher quality than can generally be found on the market today. These indoor water-cooled units may be combined with the dry coolers of the REM² series.