S-SERIES AIR CONDITIONING -- HEATER SYSTEM
Position heater core in heater housing making
sure front, top and bottom seals are in position.
Install four screws attaching heater core to
Install two screws attaching heater core pipes to
Install heater hoses on heater core pipes and
tighten hose clamps.
Refill engine cooling system.
Set heater (HTR) control lever at HOT. Operate
engine. Check for coolant leaks and coolant
flow through heater core.
Install covers in heater unit housing and
Lower hood and fender assembly.
HOT WATER FLOW CONTROL VALVE
Refer to Figures 22 and 23.
Raise hood and fender assembly.
Drain engine cooling system.
Remove cover from right side of instrument
Remove cover from blend-air unit.
Remove heater core as outlined in this Section.
Remove control cable mounting screw from
mounting bracket (Figure 22). Disconnect
control cable from blend-air door.
Loosen hose clamp and disconnect inlet hose
(located under blend-air unit housing) from neck
of flow control valve.