Bombard SUNRIDER 700 Manuel Du Propriétaire page 58

c:240 mb
c:240 mb
NOTE: A slight loss of air is normal before the cap is screwed on.
Only the plugs provide final airtightness.
II -5-PRESSURE
The buoyancy chamber has 5 compartments. Each must be inflated to a pressure of 240 mb / 3.4 PSI.
It is the buoyancy chamber's correct pressure.
The ambient temperature of the air or the
water proportionally influences the
internal pressure of the buoyancy chamber.
It is therefore important to anticipate.
Check and adjust the pressure of inflatable compartments (by inflating or deflating) depending on
the temperature (particularly when temperature variations are high between the morning and
evening in particularly hot regions) and check that the pressure does not exceed the recommended
pressure zone (from 220 to 270 mb).
RISK OF PRESSURE LOSS
Example:
Your boat is exposed to direct sunlight on the beach (temperature=50°C) at the recommended
pressure (240 mb/3.4 PSI). When you launch it (temperature=20°C), the temperature and internal
pressure of the inflatable compartments will drop simultaneously (up to 120 mb) and YOU WILL
THEN NEED TO REINFLATE until you regain the millibars lost due to the difference between the
ambient air and water temperatures.
It is normal to observe a drop in pressure at the end of the day when the outdoor temperature
drops.
BUOYANCY CHAMBER - PRESSURE
b: 220 mb
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b: 220 mb
Ambient temperature
BUOYANCY CHAMBER - PRESSURE
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Pressure inside the
buoyancy chamber
+1°C +4 mb / 0.06 PSI
-1°C -4 mb / 0.06 PSI
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First edition