For proper operation, all channel and reference ports require a particle filter and system
specific flow restrictor.
• Using an appropriate length of 1/2" natural air line, connect the vacuum port of the Ventilation Pump
to the “Gas Supply” port of the UFC.
• Locate the filter assembly for the ventilation pump. It’s primary purpose is to quite the noise of the
pump and typically consists of serially connected filters.
• Thread the up-stream port of the filter assembly onto the output of the pump and hand-tighten.