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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
Opened fully
<Full opening of valve>
• Open valve of the outdoor unit fully.
• Using 4mm-hexagonal wrench, open fully the valve rods at liquid and balance sides.
• Using a spanner, etc, open fully the valve rod of packed valve (MMY-MAP0801*, MAP1001*, MAP1201*) at gas
side.
• Using the pinchers, open fully the handle of the ball valve (MMY-MAP0501*, MAP0601*) 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, gas, and balance 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
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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