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Super Digital Inverter
How to open the valve
Open or close the valve.
Liquid side
Open the valve with a 4 mm hexagon wrench.
Gas side
Charge port
Closed completely
Main stopper
•
While the valve is fully opened, after the screwdriver has
reached the stopper, do not apply torque exceeding
5 N•m. Applying excessive torque may damage the
valve.
Valve handling precautions
•
Open the valve stem until it strikes the stopper.
It is unnecessary to apply further force.
•
Securely tighten the cap with a torque wrench.
Cap tightening torque
Valve size
Charge port
EN
Valve unit
Using a minus screwdriver,
turn it counterclockwise by
90° until it hits the stopper.
(Full open)
Flare nut
Handle position
Opened fully
Stopper pin
Movable part of valve (Stem)
33 to 42 N•m
Ø9.5 mm
(3.3 to 4.2 kgf•m)
20 to 25 N•m
Ø15.9 mm
(2.0 to 2.5 kgf•m)
14 to 18 N•m
(1.4 to 1.8 kgf•m)
Replenishing refrigerant
This model is a 30 m chargeless type that does not need to
have its refrigerant replenished for refrigerant pipes up to 30
m. When a refrigerant pipe longer than 30 m is used, add the
specified amount of refrigerant.
Refrigerant replenishing procedure
1. After vacuuming the refrigerant pipe, close the valves
and then charge the refrigerant while the air conditioner
is not working.
2. When the refrigerant cannot be charged to the specified
amount, charge the required amount of refrigerant from
the charge port of the valve on the gas side during
cooling.
Requirement for replenishing refrigerant
Replenish liquid refrigerant.
When gaseous refrigerant is replenished, the refrigerant
composition varies, which disables normal operation.
Adding additional refrigerant
31~50 m: L
40 g × (L-30)
•
L: Pipe length
•
To add an additional amount of refrigerant for twin-indoor
unit types, refer to the installation manual supplied with
the branching pipe (sold separately).
•
The refrigerant need not be reduced for a 30 meter (or
less) refrigerant pipe.
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