Hitachi RAS-10HRNM, Service Manual, Page: 88 / 482

Connection procedure
1 Insert the rubber cap into the drain boss up to the extruded portions.
2 Insert the boss into the unit base and turn approximately 40 degree counterclockwise.
3 The outer diameter section of the drain boss is 32 mm.
4 A drain pipe should be field-supplied.
N O T E
• Do not use this drain boss set in a cold area, because the drain water may freeze.
• This drain boss may not be sufficient to collect drain water. If collecting a big amount of drain water should be
necessary, provide a drain-pan bigger than the unit base supplied one, and install it under the unit with
drainage.
1
1
2
3
4
5
A
1
1
2
2
2
3
1. Drain pipe
2. Extruded portion
3. Drain boss
4. Rubber cap
5. Drain hole of base
1. Drain hole
2. Plastic cap
3. Drain pipe
A. Push
3 Piping work and
refrigerant charge
80
SMGB0060 rev. 1- 12/2010