Cooling - Mastervolt whisper 3,5 Installation Manual

INSTALLATION
1.4.2

Cooling

Intercooling is based on a raw water pump, heat exchan-
ger and water-injected exhaust.
The generating set should have its own sea water
(coolant water) inlet and should not be connected to any
other engine systems. A properly installed cooling system
is critical to keep engine temperatures within an accepta-
ble range. Ensure that the installation complies to the
following installation instructions.
Fig. 4.
1 Water level;
2 Water/exhaust separator;
3 Seacock;
4 Waterlock;
1 RAW WATER SUPPLY
For raw water supply the following installation mate-
rials are required: -a skin fitting - a sea cock - a water
strainer - hoses and clamps. In order to keep the suc-
tion resistance in the line at a minimum, the sea water
intake system (i.e. sea cock, tru-hull fitting, inlet filter,
etc.) must have an inner diameter of at least 1/2"
(12.5 mm) diameter. 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 ho-
ses, 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 coolant flow rate using a stopwatch and by
holding a pail of a known volume under the wet-
exhaust outlet. The flow rate should be 2 to 3
gallons/min. ( 8 to 12 litres /min.)
8
max. !
48 inches
(120 cm)
5 Air vent;
6 Water strainer;
7 Seacock.
min. !
24 inches
(60 cm)
April 2004 / WHISPER 3,5 / USA