Gas and Oil Home Heating Furnaces - split systems - copper ref lines

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brownbagg
05-23-02, 08:11 PM
what size copper lines do I need for a split system?

sbchaney
05-24-02, 07:42 AM
Without knowing what size split system you have I can not tell you what size lines are needed. For a 3 ton matched system you would need a 3/4" suction line (large Line) and a 3/8" liquid line (small line) up to 25ft.