Whisper Power M-SQ Pro 15, Руководство по установке

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8 M-SQ PRO 15/18 kVA Marine Diesel Generator
Fig. 6: Internal cooling system
1 Water level;
2 Water/exhaust separator;
3 Seacock;
4 Waterlock;
5 Air vent;
6 Water strainer;
7 Seacock.
2 RAW WATER SUPPLY
For raw water supply the following installation materials are
required: -a skin fitting - a sea cock - a water strainer - hoses and
clamps. In order to keep the suction resistance in the line at a
minimum, the sea water intake system (i.e. sea cock, trough-hull
fitting, inlet filter, etc.) must have an inner diameter of at least
25.4 mm diameter (1”). The suction hose should be kept as short
as possible. Raw water plumbing should avoid bends as much as
possible. Restriction of raw water flow, caused by kinked hoses,
undersized pipes or connections, will reduce the engine cooling
capability. This is the main cause for overheating of an engine.
After running the generating set for the first time, check the cool-
ant flow rate using a stopwatch and by holding a pail of a known
volume under the wet-exhaust outlet. The flow rate should be
according to the data in the user’s manual
3 INSTALLATION OF THROUGH HULL FITTING
It is good practice for yachts to use a hull inlet fitting with an
integrated strainer (water scoop). For propulsion engines in
motorboats the water scoop is often mounted against the sailing
direction to induce more water intake for cooling.
This should not be done in the case of a generating
set! When sailing at higher speeds, water will be
forced into the inlet and your generating set will
overflow! (see figure 7).
OK!
WRONG!
X
Fig. 7: Installing water intake
On motorboats and on sailing boats the water scoop for a gen-
erating set should be fitted with the opening faced backwards to
prevent water being forced in during sailing.
4 WATER STRAINER
Use an appropriate water strainer with connections of 25.4 mm
(1”). Install the water strainer in a well accessible position, 5 cm
above the waterline (see fig. 6, ref. 6).
5 SIPHON BREAKER (AIR VENT)
When the point of water injection is below the waterline, then
-when the engine is stopped -there is a risk that the cooling water
may enter the engine as a result of siphoning. To avoid this hap-
pening, the generating set is designed to accommodate a siphon
breaker (air vent). See figure 2. In the standard delivery the
connections are bypassed. Hose of 25.4 mm (1”) inner diameter
should be used.