Circulation unit for solar heating systems Caleffi 279HE

Circulation unit for solar heating systems Caleffi 279HE

Circulation units are used on the primary circuit of solar thermal systems to control the temperature in the hot water storage. The pump inside the units is activated by the signal arriving from the regulator. The units contain the functional and safety devices for optimum circuit control.

Description: 

Circulation unit for solar heating systems, flow and return connection. Fitted for connection to DeltaSol® SLL + with UPM3 pump

Pump station for solar thermal systems, flow and return connection.

Electric supply: 230 V (AC).

Max. working pressure: 10 bar.

Safety relief valve temperature range: -30–160 °C.

Safety relief valve setting: 6 bar (for other setting, see 253 series using the adapter code F21224).

Flow meter temperature range: -10–110 °C.

Max. percentage of glycol: 50 %.

Consisting of:

- Solar circulation pump;

- safety relief valve for solar thermal systems 253 series;

- 2 fill/drain cocks;

- instrument holder fitting with pressure gauge;

- flow meter;

- deaerator device;

- flow temperature gauge;

- return temperature gauge;

- 2 shut-off valves with check valves;

- 2 hose connections;

- pre-formed shell insulation.

Fitted for fitting with digital regulator DeltaSol^® SLL.

* With PWM control