21
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
•
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
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
•
L: Pipe length
•
To add additional refrigerant to twin and triple systems,
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.
Valve size
Ø9.5 mm
33 to 42 N•m
(3.3 to 4.2 kgf•m)
Ø15.9 mm
20 to 25 N•m
(2.0 to 2.5 kgf•m)
Charge port
14 to 18 N•m
(1.4 to 1.8 kgf•m)
Valve unit
Charge port
Using a minus screwdriver,
turn it counterclockwise by
90° until it hits the stopper.
(Full open)
Flare nut
Handle position
Closed completely
Opened fully
Main stopper
Movable part of valve (Stem)
Stopper pin
31~75 m: L
40 g × (L-30)
EN-21
Summary of Contents for RAV-SP1104AT8-E
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