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Hitachi CENTRIFUGAL VRF Serie Bedienungsanleitung Seite 18

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UNITS INSTaLLaTIoN
(Floor mounted)
Drain pipe
7.4 FAN PERFORMANCE CURVE
RASC unit can be installed with suction and/or discharge air ducts. Refer to the fan performance curves in order to ensure that the
air volume is within the working range.
In case of using suction and/or discharge air ducts, check the fan performance curve and decide which ducts are suitable according
to the external static pressure (Pa) / air flow volume (m
130
120
110
100
90
80
70
60
50
40
30
20
10
0
40
45
50
Air flow (m³/min)
8
PMML0399B rev.1 - 07/2016
Mark
Anchor bolt pitch
Model
(4-6)HP
(8/10)HP
A(mm)
1335
B(mm)
1113
Description
Unit
Cut this portion of bolt If not, it's
difficult to remove Service Cover
Mortar Hole (Ø100xDepth 150)
Anchor Bolt M10
Drainage (Wide 100xDepth 150)
Drainage
Vibration-proof rubber
>25mm
<30mm
/min.).
3
RASC-4HNPE
55
60
65
70
75

Ceiling suspended
1 Suspend the unit as the drawing indicates.
1770
2 Ensure that ceiling can resist the unit weight which is
1463
indicated into the specification label.
3 Install the unit so that the drain outlet parts is slightly lower
than the other side (>25mm / <30mm), in order to avoid
incorrect drain discharge.
Sling Bolt (M10)
>25mm
<30mm
!
C A U T I O N
If the unit is suspended in the ceiling, place for installation is
sufficiently strong. If not, reinforce the place with beams, etc., (more
than 150 kg for one sling bolt) otherwise, the unit may fall down or the
unit wind resonance may produce abnormal noise.
Do not install the unit using vibration-proof springs or mounting
springs.
130
120
110
100
90
80
70
60
50
40
30
20
10
0
80
40
45
Mark
Model
(4-6)HP
A(mm)
B(mm)
Suspension Bracket
(Ceiling suspended)
Drain pipe
RASC-5HNPE
50
55
60
65
70
Air flow (m³/min)
Sling bolt pitch
(8/10)HP
1335
1770
1113
1463
75
80

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