Water Charging; Water Quality; Piping Insulation - Toshiba HWS-803H-E Quick Reference

Water charging

Charge water until the pressure gauge shows 0.2 MPa (2 bar).
Hydraulic pressure may drop when the trial run begins. In that case, add water.
Air may enter if the charged hydraulic pressure is low.
Loosen the Air relief valve cap by two turns to release air (see
diagram).
Loosen the cap of the pressure relief valve to release air. Water
may come out of the pressure relief valve.
Release the air completely from the water circuit. Failure to do so
may disable correct operation.

Water quality

The water used must satisfy EN directive 98/83 EC.

Piping insulation

It is recommended that insulation treatment be applied to all pipes. To perform optional cooling
operation, apply insulation treatment of 20 t or more to all pipes.
12