Operational Setup

Complete Operational Set-Up:

CAUTION: Always wear goggles and gloves when doing work that Involves opening the refrigeration system. If liquid refrigerant comes into contact with the skin or eyes, injury may result.


CAUTION: Use only authorized 23 kg (50 lb.) refillable refrigerant tanks (J 39500-50). Use of other tanks could cause personal injury and void the warranty.


1. Connect high side (red) and low side (blue) hoses to the ACR4 unit. Make sure to route hoses through hose reel bracket grommets.

NOTICE: Refrigerant-134a systems have special fittings (per SAE specifications) to avoid cross-contamination with Refrigerant-12 systems. Do not attempt to adapt this unit to Refrigerant-12 systems as severe system failure will result.