Hisense HCHM-N04X - Page 23

Item Mark
AllowablePiping
Length
Piping
Length
MaximumPipingLengthbetweenBRANCH PIPEof1st
BranchandTerminalIndoorUnit
L2 ≤90m(295ft)
1
MaximumPipingLengthbetweenSwitch BoxandIndoorUnit
L3a,a+b+d,
a+b+eora+c
≤40m(131ft)
2
InCasethereisBranchafterSwitch Box, TotalPiping
LengthfromSwitch BoxtoEachConnectedIndoor
UnitperBranch
a+b+c+d+e ≤40m(131ft)
Height
Difference
InCasethereisBranchafterSwitch Box ,
HeightDifferencebetweenIndoorUnitsConnectedto
SameConnectionPortof
Switch Box
H3 <4m(13ft)
HeightDifferencebetweenSwitch Boxes
H4 <15m(49ft)
HeightDifferencebetweenSwitch Box
andIndoorUnit
H5 RefertoNOTE3.
㹟
㹡
㹠
L3a L3a
L3a
L3a
L2
H4
H3
d
e
Switch Box
Switch Box
Switch Box
Indoor
Unit
: 3 Pipes (High/Low Pressure Gas Pipe, Low Pressure Gas Pipe and Liquid Pipe)
: 2 Pipes (Gas Pipe and Liquid Pipe)
H5
H5
H5
H5
Outdoor Unit
BRANCH PIPE
(2) PipingWorkforSwitch Box
Refrigerantpipingsizedependsonthecombinationswiththeoutdoorunit.Refertotheinstallation
andmaintenancemanualfortheoutdoorunit.PerformpipingworkfortheSwitch Boxaccordingto
the followingfigure.
NOTES:
1. Whenthepipinglengthfromthefirstbranchtotheterminalindoorunitexceeds40m (131 ft), there
are restrictions.Refertotheinstallationandmaintenancemanualfortheoutdoorunit.
2. Ifthepipinglength(L3a)betweeneachSwitch Boxandindoorunitisconsiderablylongerthanother
indoor unit,refrigerantmaynotflowwell,andmaylessentheunit’sperformancecomparedtoother
models.(RecommendedPipingLength:Within15m(49ft))
3. WhentheheightdifferencebetweenSwitch Boxandindoorunitislong,theperformancemay
decrease.(RecommendedPipingLength:Within15m(49ft))
14
Each Water Module must occupy one branch of Switch Box exclusively.
4.
or Water Module
Indoor
Unit
or Water Module
Indoor
Unit
or Water Module
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit