User manual WALLAS 3468

[. . . ] 3467 Standard lead-through: - The standard lead-through may be used as a hull lead-through in rough conditions and as a deck leadthrough in mild and normal conditions. - The standard lead-through has the best splashguard of all Wallas lead-throughs. - The standard lead-through cannot be sealed. For this reason it cannot be used as a deck lead-through, which may be occasionally submerged under water. [. . . ] - Always remember to open the exhaust lead-through before turning the unit on and to seal it again when conditions become rough. - The lead-through is opened and sealed by simultaneously pressing and turning its cap. - Under exceptionally rough conditions, the use of the deck lead-through upgrade, 2069, is recommended. - A deck lead-through upgrade 2069 must be used with Nautic 40D. - Nautic 30D and 40D can not be installed under the deck direct to the deck lead through. INSTRUCTIONS FOR INSTALLATION General instructions for installation: - The air current must always be able to flow freely past the lead-through: try to install the lead-through in such a way that enables wind to blow over it. The lead-through must not be located in a corner or behind a closed end where wind pressure can interfere with the functioning of the unit. Always make sure that there is nothing in the affected vicinity of under 200 mm which is sensitive to heat, such as ropes, fenders, or neighboring boats. - If necessary, the exhaust pipe can be insulated to avoid fire hazards. - The exhaust pipe and jacket tube for the suction air must be stainless steel, 1028 or 2448. The aluminum pipe, 4045, is sufficient enough to be used with the exhaust lead-through as an insulating tube. - The insulation of the lead-through is recommended to prevent electrochemical corrosion in metal-framed boats. - Using the lead-through as a model when making installation holes for the lead-through is worthwhile, especially with cylindrical lead-throughs. - Lead-throughs have gasket but if necessery insulate the installation hole with silicon, too. - Always check the device specific requirements of the unit before the installation of the lead-through. Common to deck lead-throughs: - All lead-throughs heat their environment. Wooden decks in particular may dry from the heating effect. - Be cautious of the hot surface of the deck leadthrough during use. - Using a drainage lock with the deck lead-through to remove splash water from the exhaust pipe is recommended. The drainage lock's water pipe can be extended to an appropriate water disposal area, for example, by using a rubber hose. - Making a gooseneck for the exhaust pipe and jacket tube is recommended; the gooseneck must be placed after the drainage lock. Common to hull lead-throughs: - The minimum distance between the hull lead-through and the surface of the water is 300 mm. Make sure that the lead-through is not submerged under water for over 5 seconds. [. . . ] Figure 10: Sealable deck lead-through, 2460, and deck lead-through upgrade 2069 installed directly onto the heater. Water can easily be splashed into the unit with this method of installation. The installation hole is ø 60 mm and the screw holes are 4 x ø 6 mm. ø 74 mm 2467 ø 74 mm 125 mm 2460 max 25 mm Figure 8: Deck installation for standard lead-through, 3468, for exhaust gas and suction air. [. . . ]