DAIKIN
SM-23
Manual for Piping Work
3-1 Horizontal pipe support
Refrigerant pipes expand and contract repeatedly by ON-OFF operation of air
conditioners (5 to 10 times/hour). The amount of this expansion and contraction
reaches to 13.84mm every 10 meters at temperature difference of 80°C. To prevent
refrigerant pipes from damage, horizontal pipes should be supported at the following
intervals.