Refilling the HEED 3 is a simple process using the Breathing Air Compressor adapter.
Note: if the unit is completely emptied of air in any underwater conditions, refer to the manual regarding proper servicing before refilling your HEED 3.
Refilling from a personal Breathing Air Compressor
Attach the HEED 3 to the 920C Air Compressor Refill Adapter.
Connect the adapter to the air compressor yoke and turn the compressor on, filling the unit to 3000 psi. (Electric Model shown)