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Idiomas disponibles
Idiomas disponibles
Full opening of the valve
Open the valves of the outdoor unit fully.
Packed valve
Using a 5 mm-hexagonal wrench, turn the valve shaft counterclockwise fully to open it.
Liquid side
HP/LP gas
side
Ball valve
Using a wrench, turn it counterclockwise by 90° until it hits the stopper.
(Full open)
For the ball valve with the stopper, release the stopper to opened or closed the ball valve.
When finished working, to set the stopper.
Pay attention so that the wrench does not come into contact with the charge port when the body
cap is opened or closed.
Suction gas
side
Position of the Check-joint
The figure below shows the position of the check-joint.
MMY-MUP0721F*, 0961F*, 072H1F*
For liquid side
(color : Green)
37-EN
Body cap side
Fully closed
Charge port
MMY-MUP 1201F*, 1441F*, 1681F*,
1921F*, 096H1F*, 120H1F*
For low
pressure side
(color : Blue)
For liquid side
(color : Green)
For high
pressure side
(color : Red)
When opening and closing the cap with a wrench, be careful not
to turn the wrench vigorously as it may come into contact with
surrounding parts.
– 19 –
Heat insulation for pipe
Apply heat insulation of pipe separately at the liquid, gas, and balance sides.
Be sure to use thermal insulator resistant up to 248°F (120°C) or higher for pipes at the gas side.
Finishing after connecting pipes
After piping connection work has been finished, cover the opening of the piping/wiring panel with the piping
cover, or fill silicon or putty into the space between the pipes.
In case of drawing-out the pipes downward, also close the openings of the base plate.
Under the opened condition, a problem may be caused due to the entering of water or dust.
When using the piping cover
Drawing-out
frontward
Fully opened
For high
pressure
side
(color : Red)
For low
pressure
side
(color : Blue)
When not using the piping cover
Piping/
wiring panel
Drawing-out
Drawing-out
frontward
downward
Close the opening with the
pipe cover.
Piping/
wiring panel
Drawing-out
downward
Fill silicon or putty into the
periphery of the pipes.
38-EN
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