Scroll Technologies Compressors Stroll Technologies was a joint venture between Carlyle Compressors (a division of Carrier) and Bristol Compressors, and the compressors were sold exclusively through these partners as the 'Millenium' for Carlye and the 'Infinity for Bristol. │ MT/MTZ - Medium/High Temperature Reciprocating Compressors. IDENTIFICATION LABEL The serial number used for traceability has been changed. Digit1 compressor family series either a number or letter established for each product model digit 2 compressor type a = standard air cooled d = discus refrigerant cooled.
The breakdown of the serial number for a Bristol Reciprocating Compressor is: Digits 1- 3: Julian Date of Manufacture Digits 3- 4: Year Manufactured Digit 6: Mfg Location - 0 or 2 = Bristol Digits 7- 1.
