OP 235-PS

The Wilo Open Pack twin pump (duty/standby) pressurisation units are designed for use on heating or chilled water systems up to and including 3.5 bar cold fill pressures.

The unit is fitted with an 18 litre polypropylene break tank c/w type AB air gap to BS13077:2008 and water regulations 1999, Wras approved equilibrium ball float valve to BS1212.

The outlet is fitted with a non return valve per pump, control pressure switch, pressure regulating valve, pressure gauge, 8 lt vessel and system isolation valve.

As well as two off pressure switches for LP and HP volt free contacts.

All wired to a Manual changeover box c/w isolator.

Volt free connections:

Low pressure normally open / common / normally closed

High pressure normally open / common / normally closed

Standards Applied:

Low Voltage and Machinery Directive 2006/42/EC, BSEN809, BS7074-1 to 3, BS13077:2008 and water regulations 1999.