214
(8-7/16)
(1-13/16)
(1-9/16)
40
(1-9/16)
54
(2-1/8)
151
(5-15/16)
63(2-1/2)
Service Cover for
Electronic Expansion Valve
Low Pressure
Gas Pipe Connection
(
φ19.05(3/4) Flare Nut)
Gas Pipe Connection
(
φA Flare Nut)
High/Low Pressure
Gas Pipe Connection
(
φ15.88(5/8) Flare Nut)
Service Cover for
Electrical Box
Electrical Box
(Available for
Both Sides)
Outdoor Unit Connecting Side
38
(1-1/2)
301(11-7/8)
376(14-13/16)
82
(3-1/4)
89
(3-1/2)
301(11-7/8) B
180
(7-1/16)
191(7-1/2)
111
(4-3/8)
25(1)
Indoor Unit Connecting Side
38
(1-1/2)
5.2 RefrigerantPipingWork
Providetherefrigerantpipeinthefield.
Makesurethattherefrigerantpipeisconnectedtothesamerefrigerantcycleunit.
(1) PositionofPipingConnection
Dimension
Model
A B
HCHS-N06X 15.88(5/8) 89(3-1/2)
HCHS-N10X 19.05(3/4) 96(3-3/4)
(2) SelectingPipingSize
(a) Selectthesizeforthehigh/lowpressuregaspipe,lowpressuregaspipeandgaspipeaccordingto
thetable5.1.Thesizedependsontheindoorunittotalcapacityconnecteddownstreamofthe
Switch Box .
(b) IncasethatthepipingsizefromTable5.1andthepipingconnectionsizeforSwitch Box fromTable
5.2 aredifferent,useanaccessorypipeaccordingtotheitem5.2(3).
(c) AsfortheBRANCH PIPEbranchorheaderbranch,refertoTechnicalCatalogforOutdoorUnit.
Table5.1ConnectedIndoorUnitCapacityandPipingSize
Model
ConnectedIndoor
UnitCapacity
LowPressure
GasPipe
High/Low
PressureGasPipe
GasPipe
(HP) (mm) (mm) (mm)
HCHS-N06X
1.5HPorless ɸ15.88 ɸ12.7 ɸ12.7
T
1.6to4.0 ɸ15.88 ɸ12.7 ɸ15.88
4.1to6.0 ɸ19.05 ɸ15.88 ɸ15.88
HCHS-N10X
6.1to8.0 ɸ19.05 ɸ15.88 ɸ19.05
8.1to10.0 ɸ22.2 ɸ19.05 ɸ22.2
T:IncasethatabranchislocateddownstreamoftheSwitch Box andalsotheconnectedindoorunitcapacityis
1.5HPorless,useɸ15.88forthegaspipe.
Table5.2PipingConnectionSizeforSwitch Box
Model
LowPressure
GasPipe
High/Low
PressureGasPipe
GasPipe
(mm) (mm) (mm)
HCHS-N06X ɸ19.05 ɸ15.88 ɸ15.88
HCHS-N10X ɸ19.05 ɸ15.88 ɸ19.05
Indoor
Unit
Indoor
Unit
BRANCH PIPE
Low Pressure
Gas Pipe
Switch Box
High/Low Pressure
Gas Pipe
Gas Pipe