York YLHA 50 User Manual page 6

1 User manual
1.1 General description of the unit
Hydro kit (pack)
These units include a pack assembled with the components of a hydro kit. This assembly is located within
the unit frame and does not increase the footprint of same. It includes the following components: Lined
buffer tank and with an antifreeze heater, centrifugal pump, expansion vessel charged with nitrogen at
1.5 bar, safety valve set to 6 bar, water circuit, pressure gauge, two air bleed valves, filling valve and
drain valve. Also includes a mesh filter for the water circuit. This filter is supplied loose for installation at
the most convenient point.
Flow switch
Assures sufficient water flow when the unit is in operation.
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