MAREX 373 Aft Cabin Cruiser
Page
12 of
66
(i)
Gas installation and leakage test instruction
READ THE INSTRUCTIONS CAREFULLY BEFORE THE LEAK
DETECTOR IS INSTALLED OR USED!
Used symbols:
1.0
SAFETY
WARNING! I DANGER!
The leak detector is designed for indicating leaks in L.P.G.- systems with a maximum
working pressure of
200
kPa
(2
bar).The system is supposed to be checked prior to the
first time use, after a period of non-use and always when the gas bottle is changed.
L.P.G. is an explosive gas, therefore smoking and open flames are absolutely prohibited
when the detector is being installed or used.It is also recommended to make the
function and use of the leak detector well known to all users of the L.P.G. installation.
See section
3.1 O!
2.0
INSTALLATION
2.1 We assume that the leak detector has been chosen to fit the connections and tubing
of the L.P.G. installation.
2.2 Close the main valve on the gas bottle or dismount the regulator.
2.3 The leak detector has to be mounted in a vertical position after the regulator in the
same space as the gas bottle or bottles are stored. Make sure that the sight glass
is in full view. Stainless steel screws are included in the mounting kit (Fig. 2a).
2.4 Note the flow direction of the gas, marked with an arrow on the detector.
2.5
IMPORTANT!
When connecting cupper tubing (8,O x 0,8 mm), the enclosed
reinforcement sleeves have to be used (Fig. 2b). Hold the fitting with a spanner
when tightening the nut with a second spanner. 2.6 When connecting hoses,
hoses with prefabricated end fittings are recommended, and a must in boat
installations according to IS0 10239 (EN 1763-1 and EN 1763-2). CE-marking
from. July 1998. Other installations still allows hose clamps. If hose clamps are
used, they should be the kind of hose clamps used for fuel hoses in stainless
steel.
2.7 Unscrew the sight glass turning it counter-clockwise (Fig. 2c).
2.8 Fill up the sight glass till the marking on the glass (Fig. 2d).
2.9 Screw the sight glass back turning it clockwise by hand (Fig. 2e).
The leak detector is now ready for use.
3.0 TESTING
3.1 Fit the regulator and open the main bottle valve
3.2 Open the valves supplying the stove, the oven, the fridge and the heater, without
activating the ignition safety devices.
3.3 Press and hold the red button for approx. 10 seconds (Fig. 3a).
3.4 If no bubbles appear in the sight glass, the system is leak tight up to the individual
maneuver switch or valve of the installed device (Fig. 3b).
3.5 If bubbles appear in the glass the system is leaking (Fig. 3c)!
3.6 Release the red button and locate the leakage (Fig. 3d).
3.7 Close all the valves to the individual equipment (stove, oven, fridge and heater) and
check according to 3.3. If there still are bubbles in the sight glass when pressing
the red button, there is a leakage between the leak detector and the valves.
Locate the leakage using a leak spray, soapy water (without ammonia) or an
electronic leak tester and repair the leakage. Leaking tube fittings and hose
