Refrigerant Piping - LG MULTI V ARNU363DDA4 Installation Manual

REFRIGERANT PIPING

Insulate Refrigerant Pipes
Sufficiently insulate all cold surfaces to prevent moisture forming. All pipes must be insulated and each pipe must be separately wrapped.
Refer to Figure below. Use field-provided one-half (1/2) inch thick (or thicker) closed-cell insulation. The thickness may need to be increased
based on ambient conditions and local codes.
Wrap all refrigerant piping including field-provided isolation ball valves and flexible pipe connection kits provided by LG. Glue all insulation
joints with no air gaps between insulation segments, and between insulation segments and the unit case. Ensure insulation material fits
snugly against the refrigeration pipe with no air space between the pipe surface and the surrounding insulation.
Protect insulation inside hangers and supports with a second insulation layer. Ensure insulation on all pipe passing through pipe hangers,
inside conduit, and/or sleeves is not compressed.
This product is designed to work with refrigerant R410A.
Always follow these instructions to perform installation procedures.
• Be sure to use the specified refrigerant during refrigerant circulation and prevent air from contaminating the refrigerant.
• If the refrigerant leaks during the installation process, make sure to ventilate any enclosed space.
Figure 16: No Air Gap in Pipe Insulation in RTU Frame.
Due to our policy of continuous product innovation, some specifications may change without notification.
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