During push-pull liquid recovery, vapor refrigerant is pulled from the ____.

In push-pull liquid recovery, the process involves using both the high side and low side of the refrigerant system to evacuate refrigerant efficiently. During this process, the vapor refrigerant is indeed pulled from the recovery cylinder.

This recovery technique typically involves pushing liquid refrigerant from the system into the recovery cylinder while also pulling vapor refrigerant from the cylinder back into the system or to the recovery machine. The purpose of pulling vapor from the recovery cylinder is to ensure that the refrigerant is in its gaseous state when exiting the recovery cylinder, allowing for optimal recovery under various pressure conditions within the system.

Understanding this mechanism is crucial for efficient refrigerant recovery and ensuring that the equipment operates within safe and environmentally sound practices. The other options do not directly relate to where vapor is pulled during the push-pull recovery process.