| Tweet |
Custom Search
|
|
|
||
 r. Fresh Water System Controls.
and OFF to maintain the preset pressure ((2) below) of
the system. Pressure can be increased by turning the
knob on front of switch in a clockwise direction.
(1) Automatic switch (1, fig. 2-8 ).
The
automatic switch turns the water pressure set ON
1. Automatic switch
3. Air volume control
2. Pressure gage
4. Relief valve
Figure 2-8. Water pressure set controls.
(2) Pressure gage (2). This gage indicates the
the automatic switch become inoperative. This prevents
damage to other system components.
pressure on the system. Pressure reading of 20 psi
starts the reciprocating pump. A reading of 40 psi stops
s. Sanitary System.
the pump through the automatic switch (1).
(3)
Air volume control (3).
This control
(1) Water pressure set. The controls of this set
maintains a predetermined amount of air on water in the
are identical with those described in subparagraph r.
volume tank at all times.
above.
(4) Relief value (4). This is a protective device
(2) Valves. Each valve in the sanitary system
that releases excess pressure from the system should
must be open when the system is in operation.
2-20
|
||
|
||
