installing the unit _25
ENGLISH
Heat Recovery model
Branch with Y-joint
Using MCU
only
Using Y- joint
and MCU
MCU-X4VEF1
MCU-X4WEF1
Items Examples Remarks
Max.
piping
length
Outdoor ~
Outdoor unit
Piping
(Equivalent
piping)
200m(656')
220m(722')
Using MCU only
a+b+c+d+e+f+g ≤ 200m(220m)/256'(722')
Equivalent pipe
length.
Y joint : 0.5m,
Header : 1m,
MCU : 1m
Using Y-joint and MCU
a+g+m ≤ 200m (220m)/656'(722')
Total
piping
1000m(3281')
Using MCU only
a+b+c+d+e+f+g ≤ 1000m/3281'
Using Y-joint and MCU
a+b+c+d+e+f+g+p+h+i+j+k+m
≤ 1000m/3281'
Piping 10m(33') r ≤ 10(33'), s ≤ 10(33'), t ≤ 10m(33')
Equivalent
piping
13m(43') r ≤ 13(43'), s ≤ 13(43'), t ≤ 13m(43')
Level
difference
Outdoor ~
Indoor unit
Piping
50m / 40m
*1)
(164'/131')
H1 ≤ 50/40m(164'/131')
Indoor ~
Indoor unit
Piping 15m(49') H2 ≤ 15m(49')
Outdoor ~
Outdoor unit
Piping 5m(16') H3 ≤ 5m(16')
MCU~MCU Piping 15m(49') H4 ≤ 15m(49')
Allowable
length after
branch
The first
branch ~
the farthest
Indoor unit
Piping 45m(148')
Using MCU only 45m(148')
Using Y-joint and MCU g+m ≤ 45m(148')
MCU(Included EEV)
Piping 20m(66') m ≤ 20m(66')
*1) As an outdoor unit is located in a lower position than indoor unit, level difference is 40m.
DVM PLUS3 HR_IM_E_32805-2.indd 25 2011-11-11 오후 4:18:23
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