Fujitsu ASYA18L User Manual

En-7
5. FORMING THE DRAIN HOSE AND
PIPE
CAUTION
•Donotremovethearenutfromtheindoorunitpipeuntil
immediately before connecting the connection pipe.
•Topreventbreakingofthepipe,avoidsharpbends.
•If the pipe is bent repeatedly at the same place, it will
break.
[For
1
Rear piping,
2
Right piping and
3
Bottom piping]
• Installtheindoorunitpipinginthedirectionofthewallhole
and bind the drain hose and pipe together with vinyl tape.
• Installthepipingsothatthedrainhoseisatthebottom.
Pipe (Top)
Cloth tape
2
Right piping
3
Bottom piping
Bind with vinyl tape
Drainhose(Bottom)
1
Rear piping
CAUTION
•Do not wrap the tape too tightly on drain hose. If the
tape is too tight (as shown in the Figure below) the
insulation effect will be lost and the moisture from
condensation may accumulate.
Bad Example
Vinyl tape too tight
• Perform“6.ELECTRICALWIRING”beforeperformingthis
piping.
• Wrapthepipesoftheindoorunitthatarevisiblefromthe
outside with cloth tape.
• Afterpassingtheindoorpipinganddrainhosethroughthe
wall hole, hang the indoor unit on the hooks at the top of the
wall hook bracket.
Wall hook bracket
Indoor unit
Top hooks
[For
4
Left rear piping,
5
Left piping and
6
Center
piping]
• Presettheendofthepipe.
• For
4
Left rear piping and
6
Center piping, route the
connection pipes through the wall.
• Bendtheconnectionpipingtoabendradiusnotlessthan
100 mm and position the piping no more than 50 mm from
the wall.
4.3.2. Bending pipes
The pipes are shaped by your hands or pipe bender. Be •
careful not to collapse them.
Donotbendthepipesinananglemorethan90°.•
When pipes are repeatedly bend or stretched, the material •
willharden,makingitdifculttobendorstretchthemany
more.Donotbendorstretchthepipesmorethanthree
times.
CAUTION
•Topreventbreakingofthepipe,avoidsharpbends.
•If the pipe is bent repeatedly at the same place, it will
break.
4.3.3. Pipe connection
Whenthearenutistightenedproperlybyyourhand,hold
the body side coupling with a separate spanner, then tighten
with a torque wrench.
CAUTION
•Holdthetorquewrenchatitsgrip,keepingitintheright
angle with the pipe, in order to tighten the flare nut
correctly.
•Tighten the flare nuts with a torque wrench using the
specified tightening method. Otherwise, the flare nuts
could break after a prolonged period, causing refrigerant
to leak and generate a hazardous gas if the refrigerant
comesintocontactwithaame.
Connection pipe
Torque wrench
Indoor unit pipe
(Body side)
Tighten with two wrenches.
Holding wrench
Flare nut
CAUTION
•Besuretoapplythepipeagainsttheportontheindoor
unit and the outdoor unit correctly. If the centering is
improper, the flare nut cannot be tightened smoothly.
If the flare nut is forced to turn, the threads will be
damaged.
•Donotremovethearenutfromtheindoorunitpipeuntil
immediately before connecting the connection pipe.
•Do not use mineral oil on flared part. Prevent mineral
oil from getting into the system as this would reduce the
lifetime of the units.
Flare nut [mm (in.)] Tightening torque [N·m (kgf·cm)]
6.35 (1/4) dia. 16 to 18 (160 to 180)
9.52 (3/8) dia. 32 to 42 (320 to 420)
12.70 (1/2) dia. 49 to 61 (490 to 610)
15.88 (5/8) dia. 63 to 75 (630 to 750)
19.05 (3/4) dia. 90 to 110 (900 to 1,100)
9371057033-02_IM_en.indd 7 2/20/2009 3:13:29 PM

Fujitsu ASYA18L Specifications

General

Brand	Fujitsu
Model	ASYA18L
Category	Air Conditioner
Language	English