Drain Piping - Hitachi RASC UTOPIA RCI-2.0FSN1E Installations- Und Betriebshandbuch

REFRIGERANT PIPING &
REFRIGERANT CHARGE

12. DRAIN PIPING

12.1. RASC (OUTDOOR UNIT)
1. Outdoor unit is equiped with a drain piping. Its position is shown in figure below
RASC-5
-
RASC-10
-
2. Prepare a polyvinyl chloride with 22 mm outer diameter
3. Fasten the tube to the drain hose with an adhesive and the field-supplied clamp. The drain piping must be performed with a
DOWN-SLOPE pitch of 1/25 to 1/100
4. Connect a siphon, as shown in figure below
Slope 2%
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Drain Piping
>75 mm
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Drain Piping
Plug
PMGB0126A rev.2 - 11/2006
22