Mazda RX-8 Manual page 1686

Regular amount of refrigerant (approx. quantity)
430 g {15.2 oz}
o
WARNING:
If the refrigerant system is charged with a large amount of refrigerant when checking for gas
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leakage, and if any leakage should occur, the refrigerant will be released into the atmosphere. In
order to prevent the accidental release of refrigerant which can destroy the ozone layer in the
stratosphere, follow the proper procedures and charge with only a small amount of refrigerant
when checking for gas leakage.
If charging the system with refrigerant by service cans or refrigerant tank, running the engine
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with the high-pressure side valve open is dangerous. Pressure within the service cans or
refrigerant tank will increase and they could explode, scattering metal fragments and liquid
refrigerant that can seriously injure you. Therefore, do not open the high-pressure side valve
while the engine is running.
14. Open the low-pressure side valve of the manifold gauge.
15. When the high-pressure side reading increases to 98 kPa {1.0 kgf/cm
side valve of the manifold gauge.
16. Inspect for leakage from the cooler pipe/hose connections using a gas leak tester.
If there is no leakage, go to Step 18.
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If leakage is found at a loose joint, tighten the joint, go to next step.
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2
, 14 psi} , close the low-pressure
(w) RX-8 - HVAC
Page 57