Carrier 38GJt Owner's Manual & Installation Instructions

After the pipe is protected, do not bend it to form a small angle; otherwise it will crack orbreak.(3)Wrap the Pipe with Tape˖a. Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe toprevent the condensate water from overflowing.b. Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the wall. During thewrapping, the later circle should cover half of the former one.c. Fix the wrapped pipe on the wall with clamps.1) Do not wrap the pipe too tight; otherwise the insulation effect would be weakened.Ensuredrain hose is separated from the pipe.2) Next, fill the hole on the wall with sealing material to prevent wind and rain from entering the room.4.2.5 Support and protection for the pipelineSupport should be made for hanging the connection pipe. The distance between each support can not exceed 3.3 ft (1m).4.3 Air Purging and Refrigerant Charge4.3.1 Air purging(1) The refrigerant in the outdoor unit was charged before shipment. Additional refrigerant needs tobe charged into the refrigerant pipe during the field installation.(2) Ensure the outdoor unit's liquid and gas valves are closed completely.(3) As shown in the following figure (Fig.10), expel the gas inside the indoor unit and the refrigerant pipe with thevacuum pump."LO"Knob "HI"KnobVacuum pumpManometerManometerConnection hoseliquid valveGas valveFig 10(4) When the compressor is not running, charge the R410A refrigerant into the refrigerant pipe from the liquidvalve of the outdoor unit (do not charge from the gas valve).4.3.2 Additional refrigerant charging(1) Refrigerant Charge in the Outdoor Unit before ShipmentNOTICE1) The outdoor unit has been charged with refrigerant prior to delivery. The refrigerant charge is not included and isan additional charge for the indoor unit and the refrigerant pipe.2) The amount of the additional refrigerant charge depends on the diameter and length of the liquid refrigerantpipe which is determined by the actual yield installation requirement.3) Record the additional refrigerant charge for future maintenance.14