DC Inverter Multi VRF System
18
Fig. 20
3) When wrapping the tape, half of the width of the tape should cover the previous layer of
tape. Don
’
t wrap the tape too tight, or insulation effectiveness will be comprised.
4) After wrapping the pipe, apply sealing material around the hole on the wall.
(1) Thermal insulating material shall be able withstand the pipe temperature. For heat pump unit, liquid pipe
should withstand 70
ć
(158
̧
) or above and gas pipe should withstand 120
ć
(248
̧
) or above. For cooling
only unit, both liquid pipe and gas pipe should withstand 70
ć
(158
̧
) or above.
(2) Thermal insulating material of branches should be the same as that of the pipeline. The attached foam of
branches alone cannot be substituted for insulating material.
4.3.7 Support and Protection of Pipeline
(1) Support should be made for hanging connection pipe. Distance between each support cannot be over 1m(3
feet).
(2) Protection against accidental damage should be made for outdoor pipeline. When pipeline exceeds 1m(3
feet), a pinch board should be added for protection.
4.4 Disassembly of Compressor Feet
In order to prevent unit from damage during transportation, 2 metal pieces are fitted to
outdoor unit
’
s compressor feet before unit leaves factory. See fig. 21.
Fig. 21
When installing the unit, metal pieces for transportation must be removed. Then fasten the
