MG ZR Series Owner's Manual page 40

Rapid cooling
HB0626
Start the engine and switch on the air conditioning.
Set the blower to maximum speed and switch on air recirculation
(this will prevent warm air being drawn into the car from outside).
Once the interior is cool, switch off air recirculation and then reset
the blower as required.
40
Heating & Ventilation
Reducing humidity
Air conditioning reduces moisture from the air and can be used to
demist windows quickly in damp weather. Used in conjunction
with the heater, it also makes the interior of the car warm and dry.
This setting is ideal for most driving conditions, when the outside
temperature is above freezing point. After switching on the air
conditioner, initially set the controls as shown and progressively
adjust the temperature control and blower speed, to suit your
requirements.
NOTE: If the car interior is particularly hot when you start the engine, it
will take time for the air conditioner to become fully effective. Before
switching on the air conditioning, it is best to ventilate the car for a short
while by operating the blower at a fast speed, with windows and sunroof
open. Remember to close the windows and sunroof before you operate the
air conditioner.
HB0625