Refrigerant Piping - Hitachi RCI-1.0FSN3E series Installations- Und Betriebshandbuch

4 refrigerant piping

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for ceiling already completed with panels.
Attach this side of the scale
to the outer side of the unit
Check the dimension of
opening at each side of
the unit
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Ceiling not completed with panels yet.
Pattern Paper for
Installation
Dimension for Opening
Suspension Bolt
Surface of Ceiling
4 REfRIGERANT PIPING
4.1 PIPING CONNECTION
4.1.1 Piping Position
Position of piping connection is the following, which is available from all
directions, top, left or right.
Attach this side of the scale to the inner
side of the opening of the ceiling
Indoor Unit
Checking Scale
Dimension for Opening
Unit
Screw (m6)
Pattern Board for
Installation
6 PmmL0231A rev. 0 - 02/2011
Attach this side of the scale to the lower
side of the unit
Indoor Unit
Ceiling panel
Checking Scale
Check the height of the
ceiling at each corner of
the unit
- Tighten the nuts of the suspension brackets after the adjustment is
completed. Apply LOCK-TIGHT paint to the bolts and nuts in order
to prevent them from loosening. If not done, abnormal noises or
sounds may occur and the indoor unit may come loose.
4.1.2 Size of piping connection
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Piping size
 Gas piping
rCI-1.0/1.5 Ø 12.70 (1/2)
rCI-2.0
Ø 15.88 (5/8)
rCI-2.5-6.0
Attach this side of the scale
to the ceiling Panel
mm (in)
 Liquid piping
Ø 6.35 (5/8)
Ø 9.53 (3/8)