VZ Model (Bore 132mm x stroke 106mm) Ammonia and HFCs: R717, R22, R404, R417 Style: Reciprocating Single Stage: VZ6, VZ8 Two Stage: VZ42, VZ62
VZL Model (Bore 132mm x stroke 132mm) Ammonia and HFCs: R717, R22, R404, R417 Style: Reciprocating Single Stage: VZL4, VZL8 Two Stage: VZL31, VZL62