Replenishing Refrigerant - Toshiba RAV-SP404AT-E Installation Manual

Super Digital Inverter
How to open the valve
Open or close the valve.
Liquid side, gas side
Open the valve with a 4 mm hexagon wrench.
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
[Hexagonal wrench is required.]
14 to 18 N•m
Ø6.4 mm
(1.4 to 1.8 kgf•m)
33 to 42 N•m
Ø12.7 mm
(3.3 to 4.2 kgf•m)
14 to 18 N•m
(1.4 to 1.8 kgf•m)

Replenishing refrigerant

This model is a 20 m chargeless type that does not need to
have its refrigerant replenished for refrigerant pipes up to 20
m. When a refrigerant pipe longer than 20 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
SP40, 45
21~30 m: L
20 g × (L-20)
• L: Pipe length
• The refrigerant need not be reduced for a 20 meter (or
less) refrigerant pipe.
16
SP56
21~50 m: L
20 g × (L-20)
EN