Toshiba TCB-DP22CUL Installation Manual page 7

DrainPump
Kit installation Manual
[] Knockout hole
Open the draw-out port (Knockout hole) at upper
side.
Draw-out port
at upper side
(Knockout hole'
• Tightening connection
CAUTION
• Do not apply excessive torque.
Otherwise, the nut may crack depending on the
conditions.
Unit : ft Ibs (N,m)
Outer diam. of copper pipe Tightening torque
1/4" ( 6.4 mm) (diam.) 10.3" to 13.3" (14 to 18)
3/8" ( 9.5 mm) (diam.) 24.3" to 31.0" (33 to 42)
1/2" (12.7 mm) (diam.) 36.9" to 45.7" (50 to 62)
5/8" (15.9 mm) (diam.) 50.2" to 60.5" (68 to 82)
[] Connection of ELBOW PiPiNG KIT
Connect "ELBOW PIPING KIT" sold separately to
the indoor unit.
Elbow type pipe Draw-out port
at liquid side at upper side
Elbow type pipe
at gas side
\
Tightening torque of flare pipe connections
Pressure of R410A is higher than that of R22.
(Approx. 1.6 times) Therefore, using a torque
wrench, tighten the flare pipe connecting sections
which connect the indoor and outdoor units of the
specified tightening torque.
Incorrect connections may cause not only a gas
leak, but also a trouble of the refrigeration cycle.
Flare at
__ jindoor
_unit side
unit side
Align the centers of the connecting pipes and tighten
the flare nut as far as possible with your fingers.
Then tighten the nut with a spanner and torque
wrench as shown in the figure.
Halfunion (_) f F_ut
i Externally h_ Internally threaded side | _ threaded s de
Use a wrench to secure. Use a torque wrench to tighten.
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