Bentley R Type - Page 87

Excrne
CoorrNc
Sysrnu.
B3
Hot
coolant
is circulated
through
the
heater from
the engine cooling
system.
The
coolant
is
taken
from
the cylinder block
through the
isolating
tap,
trig. 39, to a
manually
operated
valve, 3, Fig. 2,
and
then
to
the
heater,
the
return
being made
to the coolant pump.
The
switch
mounted on
the
variable
control
Fig.39.-CAR HEATER
ISOLATING TAP.
for
the
heater
fan
incorporates
a
instrument
board, as shown
in Fig.
of.
the
interior
temperature.
rheostat,
and
is
1,
thus
giving
a