For these models, electric power source of single phase, 200V is necessary.

(1)Ventilation without a Duct (Figure A)

For ventilation without an exhaust duct, install a ventilating fan with a capacity as specified by Recommended Ventilating Fan (1) in the Ventilation Data. The capacity is based on the allowable room temperature rise of 5℃. Position the ventilating fan as high as possible on the wall.

(2)Ventilation with a Duct and without a Ventilating Fan (Figure B)

For ventilation with an exhaust duct, calculate the duct's pressure loss based on the Air Exhaust ( air compressor )
in the Ventilation Data.
If the calculated pressure loss is lower than 20 Pa, a ventilating fan is not required on the duct. Install the duct with its
detachable end making direct contact with the grilled air exhaust ( air compressor part only ) of the HISCREW's
top enclosure panel.
For ventilation of the air exhausted from an air dryer, install a ventilating fan with a capacity as spceified by Recommended Ventilating Fan (3) in the Ventilation Data.

(3)Ventilation with a Duct and Ventilating Fan (Figure C)

If the pressure loss as calculated as above (2) is 20 Pa or higher, a ventilating fan is required on the duct.
Install the duct with keeping a gap of 200 to 300mm between the duct end and the grilled air exhaust
( air compressor part only ) of the HISCREW's top enclosure panel. On the other end of the duct, install a ventilating fan with a capacity as specified by Recommended Ventilating Fan (2) in the Ventilation Data. When selecting a ventilating fan, consider not only this capacity but also the duct also the duct pressure loss and the exhausted air tempreature rise.