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Full opening of valve
• Open valve of the outdoor unit fully.
• Using 4mm-hexagonal wrench, open fully the valve rods at liquid sides.
• Using a spanner, etc, open fully the valve rod of packed valve at suction gas side.
• Using the pinchers, open fully the handle of the ball valve at gas side.
Be careful that handling of ball valve differs from that of packed valve.
How to open the ball valve at gas side
Heat insulation for pipe
• Apply heat insulation of pipe separately at liquid, suction gas, discharge gas sides.
• Be sure to use thermal insulator with heat-resisting temp. 120°C or more.
CAUTION
• After piping connection work has finished, cover the opening of the piping/wiring panel with the piping cover, or
fill silicon or putty in space of the pipes.
• In case of drawing-out the pipes downward or sideward direction, also close the openings of the base plate
and the side plate.
• Under the opened condition, a trouble may be caused due to entering of water or dust.
In case of using pipe cover In case of using no pipe cover
Valve unit
Valve unit
Charge port
Charge port
Handle
Pull out the handle and
using cutting pliers, etc.
turn it counterclockwise
by 90˚. (Open fully)
Flare nut
Flare nut
Push in handle.
Closed completely
Handle
Handle position
Opened fully
Piping/wiring panel
Drawing-out sideward
Drawing-out downward
Drawing-out
frontward
Fill silicon or putty in
periphery of the pipes.
Piping/wiring panel
Drawing-out sideward
Drawing-out downward
Drawing-out
frontward
Close the opening
with pipe cover.
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