Boilers and heat pumps team up in care home
Energy-saving space heating is provide at the newly refurbished St Michael’s Care Home & Convent in Clacton by Remeha Quinta Pro gas-fired condensing boilers in a bivalent system that includes two air-source heat pumps. The heating system operates at flow/return temperatures of 45/35°C to enable both the boilers and heat pumps to achieve maximum efficiency.
The system was design by contractor NCC Mechanical Services. It combines two air-source heat pumps, two 115 kW boilers and a 500 l buffer tank serving underfloor heating, radiators and fan convectors. A control module optimises the efficiency of the heat pumps, with a matching weather compensation and sequence control for the boilers within the control panel.
Two more Remeha Quinta Pro 45 kW boilers provide constant-temperature hot water (82/71°C) to the LPHW frost coils of four large heat-recovery units to bring tempered air to a number of communal areas.