Drain Piping - Hitachi SET FREE Series Instruction Manual

DRAIN PIPING

9 Drain PiPinG
9.1 ConDensation DrainaGe sYstem
When the outdoor unit operates in heating mode, there is a build-up of condensation of the ambient humidity which, together with
rain water, requires draining.
Select a location for the unit which permits adequate drainage. If necessary, mount an installation suitable for the drainage of
condensation.
!
D a n G e r
• Drainage must not take place in areas frequented by pedestrians. In low temperatures, the drainage water could freeze and lead to falls.
If it is necessary to install the outdoor unit in an area frequented by pedestrians, an additional drainage tray should be fitted.
• Do not fit drainage pipes or collection trays in cold climates, as they could freeze and break.
If a condensation drainage kit is required for the outdoor unit, use the optional drainage kit DBS-TP10A.
Base of outdoor unit (All measurements are in mm)
fsXnse fsXnPe
8 - 12HP 5, 6HP
14 - 18HP 8 - 14HP
20 - 24HP 16, 18HP
46 PMML0479 rev.2 - 02/2018
Power source wiring outlet
(Ø65 knockout hole)
Transmission wiring outlet
(Ø55 knockout hole)
Control wiring outlet
(Ø33 knockout hole)
Power source wiring outlet
(Ø65 knockout hole)
Transmission wiring outlet
(Ø55 knockout hole)
Control wiring outlet
(Ø33 knockout hole)
Power source wiring outlet
(Ø65 knockout hole)
Transmission wiring outlet
(Ø55 knockout hole)
Control wiring outlet
(Ø33 knockout hole)
Dimension
Hole for drain (Ø26 x 2 positions)
Positions of drain boss (optional)
For heat pump: not used
For heat recovery: refrigerant piping
outlet for low pressure gas pipe
Refrigerant piping outlet
(knockout square hole)
Hole for drain (Ø26 x 2 positions)
Positions of drain boss (optional)
Hole for drain (Ø26 x 2 positions)
Positions of drain cap (optional)
For heat pump: not used
Refrigerant piping
For heat recovery: refrigerant piping
outlet (knockout
outlet for low pressure gas pipe
square hole)
Hole for drain (Ø26 x 2 positions)
Positions of drain cap (optional)
Refrigerant piping
For heat pump: not used
outlet (knockout
For heat recovery: refrigerant piping
square hole)
outlet for low pressure gas pipe
Hole for drain (Ø26 x 2 positions)
Positions of drain boss (optional)