Toshiba CARRIER RAV-SP240AT2-UL - Manual (Page 19)

Toshiba
– 18 –
Outdoor Unit
Installation Manual
EN
Triple Evacuation Method chart
Final Tubing Check
IMPORTANT:
Check to be certain factory tubing on both indoor and
outdoor unit has not shifted during shipment. Ensure
tubes are not rubbing against each other or any sheet
metal. Pay close attention to feeder rubes, making sure
wire ties on feeder tubes are secure and tight.
Open service valves
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 4 ft•lbs (5 N•m). Applying excessive
torque may damage the valve.
Valve handling precautions
• Open the valve stem until it reaches the stop.
It is unnecessary to apply further force.
• Securely tighten the cap with a torque wrench.
• Cap tightening torque
EVACUATE
▼
BREAK VACUUM WITH DRY NITROGEN
▼
WAIT
▼
EVACUATE
▼
BREAK VACUUM WITH DRY NITROGEN
▼
WAIT
▼
EVACUATE
▼
CHECK FOR TIGHT, DRY SYSTEM
(IF IT HOLDS DEEP VACCUM)
▼
RELEASE CHARGE INTO SYSTEM
Valve size
Ø3/8” (9.5 mm) 24 - 31 ft•lbs (33 - 42 N•m)
Ø5/8” (15.9 mm) 15 - 18 ft•lbs (20 - 25 N•m)
Charge port 10 - 13 ft•lbs (14 - 18 N•m)
Valve unit
Charge orifice
Using a straight blade
screwdriver, turn it 90°
counter clockwise until
the valve is fully open
(against the stop).
Flare nut
Handle position
Fully closed Fully opened
Stop pin
Main stopper
18-EN
+00EH99865401_00Ta.book Page 18 Wednesday, November 25, 2009 11:19 AM