Hitachi RAS-(4-12)HRNM(2)(E) - Drain Discharging Boss

3 Piping work and
refrigerant charge
80
SMGB0064 rev.0 - 08/2011
3.4.6 Drain discharging boss
When the base of the outdoor unit is temporarily used as a drain receiver and the drain water in it is discharged, this drain
boss is used to connect the drain piping.
Model Applicable Model
DBS-12L RAS-(2-3)HVRN(S)2
DBS-26/DBS-26L RAS-(4-6)H(V)RNS2E / RAS-(8/10)HRNSE
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 eld-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 sufcient 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