Operator`s manual
ANTIFREEZE ADDITION DATA
Antifreeze
Concentration
%
13
23
30 35
45
50
60
Freezing
of
23
14
5
-4
-22
-40
-58
Temperature
(0C)
(-5) ( -10) (-15) (-20) (-30) (-40) (-58)
b. Filling the Fresh Water System
A coolant recovery tank kit
is
supplied with each Westerbeke diesel generator. The purpose
of
this
recovery tank is to allow for engine coolant expansion and contraction, during engine operation, without
the loss
of
coolant and without introducing air into the cooling system.
This coolant recovery tank should be installed at, or above, engine manifold level, in a location where it
can be easily monitored and where coolant can be easily added
if
needed (see the figure below). A
stainless steel mounting bracket
is
supplied with each kit along with a 30-inch length
of
clear plastic hose
and clamps to connect the hose between the engine's manifold fitting to the hose spud on the base
of
the
recovery tank.
COOLANT
RECOVERY
TANK
PRESSURE CAP
COOLANT
PASSAGE
EXHAUST
MANIFOLD
Coolant Recovery Tank, Recommended Installation
Coolant from the engine, when heated during the engine's operation, will expand, lift the spring-loaded
manifold pressure cap, and enter the recovery tank via the hose connecting the recovery tank
to
the
manifold.
When the engine
is
shut down and cools, a small check valve in the pressure cap
is
opened
by
the
contraction
of
the engine's coolant, allowing some
of
the coolant in the recovery tank
to
be drawn back
into the engine's cooling system, free
of
air and without loss.
53
WESTERBEKE
GENERATORS