Breathing AIR Subsystem | Kirby Air Control System, 5 manual

KMACS 5 MANUAL

the electronic components. The KMACS 5 should be treated as you would any expensive life support equipment.

1.4.1BREATHING AIR SUBSYSTEM

The diver’s breathing air subsystem starts with the supply tank yokes (K) and connects to the diver’s supply manifold. The high pressure hoses with the yokes are stored for transit by connecting them to the posts on the panel inside the lid of the KMACS

5.The knurled knobs on the yokes should be tight- ened until just snug. Excessive force should not be applied.

1.4.2PRINCIPLE OPERATING FEATURES

l. DIVE CONTROL PANEL (A)

The panel is the main frame to which the functional components are mounted. In addition, the compo- nent names and some instructions are on the panel. The blue and orange lines (K, Q) on the panel represent the flow paths of supply air from the two high pressure hoses/yokes (S).

2.RED DIVER DEPTH GAUGE (C) (PNEUMOFATHOMETER)

This gauge indicates the “red” diver depth. The red diver pneumo valve knob (D), is turned to supply a small volume of air to the small pneumo hose that is part of the diver’s umbilical. The gauge reads the pressure of the air in the pneumo hose. This pressure, measured in feet (or meters) of sea water, equals the water pressure at the diver’s depth.

3. UMBILICAL PRESSURE GAUGE (B)

This gauge (B) is connected to the low pressure air supply system that supplies both umbilical fittings. It indicates the breathing air pressure that is in both the “red” and “white” diver umbilicals. When the air supply is from high pressure tanks (such as scuba tanks) the umbilical hose pressure can be varied by turning the regulator adjustment knob (H)

4.WHITE DIVER DEPTH GAUGE (P) (PNEUMOFATHOMETER)

This gauge indicates the “white” diver depth. The white diver pneumo valve knob (O), is turned to supply a small volume of air to the small pneumo- hose that is part of the diver’s umbilical. The gauge reads the pressure of the air in the pneumo-hose. This pressure, measured in feet (or meters) of sea water, equals the water pressure at the diver’s depth.

5.BLUE AIR SUPPLY FLOW INDICATOR LINE

The “BLUE” air supply flow indicator line (Q) indi- cates the flow path of breathing air from entry into the KMACS 5 to exit to the diver’s umbilical(s) at the fittings on the manifold (G). There are two high pressure whips which are color coded BLUE and

ORANGE.

Starting from the high pressure air tank, the BLUE air supply flows through the whip into the KMACS 5. Following the BLUE flow indicator line (Q) it shows the flow to the BLUE Breathing Air Supply Pressure Gauge (M), then to the Breathing Air Supply Selec- tor Valve which is controlled by the Breathing Air Selector Valve Handle (I). The Selector Handle (I) must be turned all the way “UP” until it stops for the BLUE supply. This places the selector valve handle in line with the flow path indicating the “BLUE” air supply (Q). The ORANGE supply is off when the Selector Handle is in the up position.

CAUTION: When using H.P. air, the selector handle must be turned up until it stops for BLUE supply or down until it stops for Orange supply. Never allow the selector handle to stay in the marked “H.P. OFF ZONE”. Both high pressure air supplies are off in the yellow striped H.P. OFF ZONE”.

After flowing through the Selector Valve the BLUE air supply enters the Breathing Air Supply Regulator

(H)which reduces the high pressure breathing air to an adjustable range between 115-225 pounds per square inch (psi) (8-15.5 bars). The BLUE air sup- ply then goes to both diver’s umbilicals through the fittings on the manifold (G).