Jacobsen HR9016 Mounting Instructions page 23

Connecting A/C hoses. Route the A/C hoses, located at back rear of cab, into
engine bay. Connect hoses onto the compressor.
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Connecting A/C wiring. Route the wire labeled A/C to the compressor clutch.
Connect the wires. Re-connect battery ground.
Please Note – ALL A/C charging MUST be performed by a certified A/C
technician, as required by local / provincial / state / federal regulations.
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Filling coolant. Leak check and evacuate the system prior to filling any coolant.
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Charging A/C system. Charge A/C system, according to proper charging
procedures, Fill to 1.75 lbs with R134A refrigerant.
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