Hitachi RCI Service Manual page 103

3 Piping work and
refrigerant charge
¿ Drain pipe installation
The correct position for the drain hose connection is shown below.
Prepare a polyvinyl chloride (PVC) pipe with an outer diameter of
32 mm.
Secure the pipe with the clamp and adhesive supplied.
The drain hose must have a gradient of 1% (1/100) to 4% (1/25).
Consider the following sizes: a + b + c ≤ 780 mm.
C A U T I O N
• Do not apply adhesive between the drain hose connection and the drain hose.
• Do not apply too much force when making the drain hose connection as this could damage it.
• Do not use bent or twisted drain pipes as these will cause water leaks.
Then insulate the drain hose appropriately.
91
SMGB0063 rev. 1 - 10/2010
Drain pipe connection
Clamp (accessory)
Do not use adhesive
Clamp (accessory)
Do not use adhesive
Drainage pipe
connection
PVC pipe Ø 32
(field-supplied)
Use PVC adhesive
Drainage pipe
(accessory)
3
4% (1/25) - 1% (1/100)
Drain pipe (accessory)
Clamp (accessory)
Insulation
(field-supplied)