Reddot 12VDC Manuals

RD-2-7982-0 (REV A) Page 1 SUBJECT TO CHANGE WITHOUT NOTICE 12VDC (RD-2-7979-0)/ 24VDC (RD-2-7980-0) COMPRESSOR KIT 12VDC (RD-2-7979-0) / 24VDC (RD-2-7980-0) COMPRESSOR INSTALLATION INSTRUCTIONS NOTE: 1. Please read instructions all the way through before beginning work. Not following these instructions may result in voided warranty. 2. This air conditioning compressor only takes R-134a refrigerant and ZEROL ESTER POE 68SL refrigerant oil. 3. Electric Compressors must be covered to protect from weather elements or any moisture. 4. Check that all items called out on the RD-2-7979-0/ RD-2-7980-0 accessory kit list have been included. 5. It is critical that minimum 4GA cable be used for the compressor power/ground runs. Direct connection to battery or nearby terminal blocks with proper fuse protection is required. Fuse and fuse holder are provided in the installation kit. Maximum 26 foot runs allowable for 4GA cable. Using larger wire is acceptable, but voltage drop must be considered. Using cables smaller than 4GA may result in voided warranty and/or damage to vehicle. A. Installing The Compressor WARNING: NEVER RUN THE COMPRESSOR WITHOUT REFRIGERANT a. Unit is wired for negative ground. b. Compressor Power and Ground Cables must be minimum 4GA. c. Fused power source must be used or warranty may be voided. INSTALLATION INSTRUCTIONS RD-2-7982-0 (REV A) Page 2 SUBJECT TO CHANGE WITHOUT NOTICE 1. Determine the most suitable location for mounting the air conditioning compressor and secure the unit. Note that the compressor must be positioned with minimal tilt (8° side to side and 5° front to back maximum) to ensure proper internal lubrication while running. 2. Connect the positive ring terminal cable of the compressor to the middle slot of the relay. Bolt down the ring terminal with an M6 lock washer (RD-5-6971-0) and M6 nut (RD-5-6619-0). 3. Use the short 4 AWG cable (RD-2-7782-0) to connect the 100A (24V)/150A (12V) fuse to the relay. Securely bolt down the relay with nut 10-32 (RD-5-4073-0). 4. Connect a 4GA Red power cable with ring terminal connection to the open position of the 100A (24V)/150A (12V) fuse, reinstall M5 nut and lock washer (torque 35-44 in-lb), and reinstall fuse cover (RD-5-16418-0P). 5. Connect the negative end of the compressor to a terminal junction block (RD-5-16826-0). The negative terminal of the vehicle power source would connect to this terminal via a minimum 4 AWG cable. 6. Remove the M6 nut and lock washer from the black grounding terminal block near the compressor, attach a 4GA black ground cable with ring terminal, and reinstall M6 lock washer and nut (max. torque: 60 in-lb). 7. The Compressor comes with a preset default speed (medium). The speed of the compressor can be varied to a slower or faster setting. This can be achieved by adjusting the jumper connection on the 4 pin connector (RD-5- 16443-0). Currently a jumper exists between the Green and Black connection for the medium (3500R/min) compressor speed setting, however a. Connecting Red and Black gives a slower (2500 R/min) speed setting. b. Connecting Orange and Black gives a faster (4500R/min) speed setting. ELECTRICAL SCHEMATIC RD-2-7982-0 (REV A) Page 3 SUBJECT TO CHANGE WITHOUT NOTICE B. Plumbing Setup 1. The compressor has a 2 ports shown in the diagram above. Note the suction port has a larger intake fitting (size 10) than the discharge (size 8). Also listed above are the Pad fittings that are suitable for the input and output ports and their respective hose nipple size 2. Below are instructions to properly assemble Aeroquip E-Z Clip hose assemblies. Note the recommended torque for the Size #10 O-ring fitting is 29-37 N-m (21-27 lb-ft) and for the size #8 O-ring fitting is 20-27 N-m (15-20 lb-ft) as recorded in the Table below.