Saab 96 - Use the Fan When Driving Slowly; Keep the Coolant Temperature High; Heater Controls

fig. 33, cold or heated air can be admitted without unpleasant draft.
The control marked "Floor-Defr." distributes the incoming air. In
the intermediate position, the air flow is equally divided between the
outlets.
The heat control "Cold-Hot" closes or opens the cock which regu
lates the coolant flow through the heater element.
With the air control "Closed-Open" the air stream can be reduced
or completely shut off.
The fan motor has two different speeds, half or full capacity,
operating when pulling out the fan switch to the first or second posi
tion respectively.
Use the Fan when Driving Slowly
At speeds above 50 km/h (30 mph), the relative velocity of the air
is generally sufficient for the heater to function satisfactorily. The
fan is required only at standstill or when driving slowly.
Keep the Coolant Temperature High
The coolant temperature should be kept at approx. 90° C (195° F),
i.e. rather high on the green part of the thermometer scale range.
This calls for a coolant with high boiling point and therefore ethylene
glycol is recommended as anti-freeze solution since its boiling point
is higher than that of water. See also page 36.
Fig. 33. Heater Controls
1. Defroster openings
2. Defroster control
3. Air control
4. Heat control
5. Grill screen control
6. Fan motor switch
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