Method and apparatus for securing tubes in an air conditioning unit

An air conditioning unit including a base pan which comprises:

• an indoor section in communication with the space to be conditioned including an indoor heat exchanger and means for circulating air to be conditioned in heat exchange relation with the indoor heat exchanger;
• an outdoor section in communication with ambient air and including an outdoor heat exchanger and a compressor;
• a partition mounted to the base pan for dividing the air conditioning unit to separate the indoor section from the outdoor section, said partition further defining a partition opening;
• a refrigerant carrying line extending between the indoor section and the outdoor section through the partition opening;
• and
• a block of sealing material, said block defining at least one slit for engaging a portion of the partition at the partition opening and a line receiving slit for receiving the refrigerant carrying line, said block including excess material whereby upon the assembly of the partition to the base pan the partition opening is fully sealed with the refrigerant carrying line extending therethrough.