Ventilation System

TM 55-1905-223-24-17

Natural convection fan

Manual ON/OFF

Internal adjustable thermostat

Ventilation System. The ventilation system consists of the axial, centrifugal, and panel fans in

the supply air and exhaust air systems.

(1)

Axial Fans

Duct mounted

Electric motor

V-belts on belt drive fans are oil, heat, and static resistant

Manually started

Self-aligning

One-piece propeller and hub construction

Access doors for cleaning and maintenance

Centrifugal Fans

For small to medium exhaust and supply ventilation applications (toilets, galley hood, and A/C-

emergency generator room)

Electric, easy access motor

V-belt drive

Hinged motor mount to aid in belt adjustment

Non-overloading backward inclined wheel (fan)

Manually operated

(3)

Panel Fan

Small, blade type ring fan

Panel mounted with guard

Direct drive

Air Conditioning (Recirculation) System. The recirculation air system consists of three air

conditioning units that provide local filtering and cooling of air to the pilothouse, equipment

operating spaces (EOS), and living spaces on the vessel. The system contains two 3-ton units

and one 16-ton unit.

(1)

3-Ton Koldwave refrigeration units (A/C-1, pilothouse; and A/C-3, engine control room)

Self-contained unit

Hermetic (sealed) compressor

Thermostat controlled

Manual and automatic start

Direct motor drive fan (blower)

Direct expansion coil

Condensate pump

1-4