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10.4. Outdoor Unit
10.4.1. INSTALL THE OUTDOOR UNIT
• After selecting the best location, start installation according
to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and
horizontally by bolt nut (ø10 mm).
2. When installing at roof, please consider strong wind and
earthquake. Please fasten the installation stand firmly
with bolt or nails.
10.4.2. CONNECTING THE PIPING
Connecting The Piping To Indoor Unit
Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe (in case of using long
piping).
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Further tighten the flare nut with torque wrench in specified torque as stated in the table.
Connecting The Piping To Outdoor Unit
1. Align the center of the piping and sufficiently tighten the flare nut with fingers.
2. 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.
CAUTION : The CU-3C20EKH/C9EKH have different cooling
capacities depending on the connection to A
CU-3C20EKH individually.
(Refer to SPECIFICATIONS on CATALOG)
1. The Cooling Capacity of Indoor Unit connecting "B" on
CU-3C20EKH (Called B unit) is different from that of A
and A
Units.
2
2. A
and A
Units share the same compressor, their cooling
1
2
capacities thus change depending on whether one, the
other, or both of the units is in use.
3. Reflect the B or A (A
reference.
CUTTING AND FLARING THE PIPING
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3. Please make flare after inserting the flare nut onto the copper pipes.
A
and/or B on
1
2
and/or A
) on the Indoor Unit for later
1
2
Model
CS-C9EKZW
1
26
Piping size (Torque)
Gas
Liquid
3/8" [42 N
m]
1/4" [18 N
●
m)
●
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