DeLonghi GWHD18A1NK3EA Service Manual page 17

Split type room air conditioner (applied to new refrigerant r-410a)
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Flaring work and connection of piping
• Bad case
• Following bending type from right to left could cause
problem of pipe damage.
15 Room Air Conditioner
Connection of the pipes-Outdoor
Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Finally, tighten the flare nut with torque wrench
until the wrench clicks.
• When tightening the flare nut with torque wrench, ensure
the direction for tightening follows the arrow on the wrench.
Outside diameter
mm
Ø6.35
Ø12.7
Outdoor unit
Liquid side
piping
(Smaller
diameter)
Torque
kg . m
inch
1/4
1.8
1/2
5.5
Gas side piping
(Bigger diameter)

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