14
INSTALLATION
ENGLISH
Indoor Unit Drain Piping
Main cause of gas leakage is defect in flaring
work. Carry out correct flaring work in the
following procedure.
• Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
• During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
• The outside diameter of the drain
connection on the indoor unit is 32 mm.
- Piping material: Polyvinyl chloride pipe
inner diometes Ø 25 mm and pipe fittings.
• Be sure to install heat insulation on the drain
piping.
- Heat insulation material: Polyethylene foam
with thickness more than 8 mm.
Drain test
The air conditioner uses a drain pump to drain
water.
Use the following procedure to test the drain
pump operation:
DIP Switch Setting
Outdoor Unit
In case that the products meet specific
conditions, “Auto addressing” function can
start automatically with the improved speed
by turning the DIP switch #3 of the outdoor
unit and resetting the power.
* Specific conditions:
- All names of the indoor units are
ARNU****4
- The serial number of Multi V super IV
(outdoor units) is after October 2013.
Feed water
Drain Pump
Drain pan
Flexible drain hose
(accessory)
Main
drain pipe
Glue the joint
Drain
port
Drain hose connection
Use the clip (accessory)
• The supplied flexible drain hose should
not be strained. A strained hose may
cause leakage of water.
INDOOR
UNIT
INDOOR
UNIT
WALL
DRAIN HOSE
WALL
DRAIN HOSE
DIP switch 7 segment
Outdoor Unit PCB
Outdoor Unit DIP Switch
CAUTION
!
Содержание ARNU96GPFA4
Страница 21: ......