Toshiba RAV-SM1603AT-E Installations-Handbuch Seite 15

Digital Inverter
How to open the valve
Confirm the structure surely and then open or
close the valve.
▼ Liquid side
Open the valve with a 4-mm hexagon wrench.
▼ Gas side
Charge port
Closed completely
• While the valve is fully opened, after the
screwdriver has reached the stopper, do not
apply torque exceeding 5N•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
15-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)
Main stopper
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)
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 replenish refrigerant 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 the vacuuming of the refrigerant pipe is
completed, close the valves and then charge
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.
Additional amount of refrigerant
31~50m: L
40g×(L-30)
• L: Pipe length
• For additional amount of refrigerant for twin
system and triple system, 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.
– 15 –
Outdoor Unit Installation Manual