Mas Sallent residential estate

A development of 50 luxury homes on the Mas Sallent estate in Bolvir, La Cerdanya, in the province of Girona.

For this installation, a pipe network was chosen to carry hot water through the different plots and feed the underfloor heating in each home.

In this area, the average outdoor temperature during the heating months ranges from 2 ºC to 6 ºC. For this reason, during the week the homes are kept at 16 ºC throughout the heating season. At weekends, the owners raise the thermostat set point to 21 ºC.

This system avoids the expansion and contraction of the building structures caused by large changes in indoor temperature, giving them a longer service life.

In this landmark project, it was decided to use air-source energy with 4 ROBUR GAHP absorption-cycle gas heat pumps for indoor installation, each with a heating capacity of 40 kW, and a 170 kW boiler. An acoustically insulated air-source plant room was built to supply all the circuits of the heat network for the different plots and minimise any noise impact.

Thanks to their excellent thermal efficiency, ROBUR heat pumps meet current legislation on renewable energy contribution. They also do not need defrost cycles and can operate at very low temperatures.

Remote monitoring and control system

For remote monitoring and control, a system specifically designed by ABSORSISTEM was installed. It detects faults in the installation so that the local technical support service can correct them before the heating and hot water service is affected.