Sunbeam ALPINE I SERIES: APLINE II SERIES, Workshop Manual

Page: 409 / 413

Page8
ROOTES MAN UAL 12-4
Section R (Heater)
ALPINE
(Ser/es
I-IV)
GENERAL DESCRIPTION
The heater element and its associated control,·
supplement the fresh air system built into the car.
The temperature of the fresh air, directed to either
car or screen, is regulated by means of the "Tem­
perature" control. Use of the blower increases
the volume of air.
On Serles 1-111 a single-speed blower is fitted·, and
the switch Is Incorporated In the air control lever­
pull to switch "ON" and push to switch "OFF".
The switch supply cable has an "in-line" fuse
(10 amp) "B" in Fig 9.
On Serles IV a two-speed blower of increased power
is fitted. A three-position switch "C" In Fig. 9, is
fitted at the outer end of the facla panel:
UP...
OFF
CENTRE SLOW
DO.W!'J
FAST
Hot water from the engine cooling system circu­
lates through the heater element and Is returned
to the Inlet side of the water pump. The heater
element Is fitted into the air box built into the
scuttle.
HEATER ELEMENT-To remove and refit.
Set the "Temperature" control to "HOT" (Max.).
Drain cooling system-save anti-freeze if used.
Uncouple the bonnet (hood) release control at the
air box and remove the air box cover.
Disconnect the Inlet and outlet hoses and withdraw
each clear of the element. In order to withdraw
the inlet hose remove the water valve (see below).
Lift out the element.
Refitting Is a reversal of the above operations, care
must be taken to ensure that each felt strip and the
rubber drain trough Is correctly positioned and
also that th.e adhesive strip ('A' in Fig. 9) is not
disturbed. After refilling it may be necessary to
!
bleed the heater-See "TO BLEED THE HEATER".
l WATER VALVE-To remove and refit.
Set the "Temperature" control to "HOT" (Max.)
and drain the cooling system-save anti-freeze If
used.
Release the control cable.
Disconnect each hose at the water valve.
Undo the retaining screws and remove the water
valve complete with bracket.
Refitting is a reversal of the above operations.
After refilling It may be necessary to bleed the
heater-See "TO BLEED THE HEATER".
TO BLEED T�E HEATER
As the heater element is above the level of the radi­
ator it may be necessary to bleed the heater after
refilling the cooling system:
Release the inlet hose (between the water
valve and the element) at the highest point
and, with the engine Idling, dispel the air and
re-secure hose. Top up cooling system as
required.
TEMPERATURE CONTROL-To remove and
refit.
Release the outer cable clamp and remove the inner
cable from the peg on the control lever.
Remove the control lever knob-screw off.
Undo the two screws, with nuts and washers which
secure the control to the facia and withdraw the
control. Note the spacing washers fitted between
the control and the facia lugs.
To remove the control cable proceed as follows:­
Release the Inner cable at the water valve
trunnion and withdraw the cable to the car
interior. Now feed a length of welding wire
through the outer cable, withdraw the outer
cable leaving the slave wire in position to act
as a guide when refitting or renewing the cable.
Refitting of both the control and the cable Is a re­
versal of the Instructions.
Note: When refitting the cable, each end of the
outer cable should be flush ·with Its clamp. Full
movement of the control lever should be obtained
without slack.
J
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