Carrier 42TVCA010, Installation Manual

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11
OUTDOOR UNIT OUTDOOR UNIT
CAUTION
1. Install the outdoor unit without anything blocking the air discharging.
2. When the outdoor unit is installed in a place always exposed to strong
wind like a coast or on a high storey of a building, secure the normal fan
operation using a duct or a windshield.
3. In particularly windy areas, install the unit such as to avoid admission of
wind.
4. Installation in the following places may result in trouble.
Do not install the unit in such places.
• A place full of machine oil
• A saline-place such as the coast
• A place full of sul
fi de gas
• A place where high-frequency
waves are likely to be generated
as from audio equipment, welders,
and medical equipment
Strong
wind
90
Obliquity Roughness Warp
Refrigerant Piping Connection
1. Cut the pipe with a pipe cutter.
2. Insert a fl are nut into the pipe and fl are the pipe.
• Projection margin in fl aring : A (Unit : mm)
RIDGID (clutch type)
IMPERIAL (wing nut type)
Outer dia. of copper pipe R32
Ø6.35 1.5 to 2.0
Ø9.52 1.5 to 2.0
Ø12.70 2.0 to 2.5
Pipes thickness 0.8 mm or more
Outer dia.
of copper pipe
R32 tool used
Conventional tool
used
Ø6.35 0 to 0.5 1.0 to 1.5
Ø9.52 0 to 0.5 1.0 to 1.5
Ø12.70 0 to 0.5 1.0 to 1.5
Pipes thickness 0.8 mm or more
Flaring
A
Die
Pipe
Installation Place
• A place which provides the spaces around the outdoor unit as shown in
the diagram
• A place which can bear the weight of the outdoor unit and does not allow
an increase in noise level and vibration
• A place where the operation noise and discharged air do not disturb your
neighbors
• A place which is not exposed to a strong wind
• A place free of a leakage of combustible gases
• A place which does not block a passage
• When the outdoor unit is to be installed in an elevated position, be sure to
secure its feet.
• The allowable length of the connecting pipe.
Model 38TVCA010 38TVCA013 38TVCA018
Chargeless up to 15 m up to 15 m up to 15 m
Maximum length 20 m 20 m 20 m
Additional refrigerant
charging 16 - 20 m
(20 g / 1 m)
16 - 20 m
(20 g / 1 m)
16 - 20 m
(20 g / 1 m)
Maximum refrigerant
charging
0.68 kg 0.90 kg 1.15 kg
• The allowable height of outdoor unit installation site.
Model 38TVCA010 38TVCA013 38TVCA018
Maximum height 12 m 12 m 12 m
• A place where the drain water does not raise any problems
CAUTION
When the outdoor unit is installed in a place where the drain water might
cause any problems, Seal the water leakage point tightly using
a silicone adhesive or caulking compound.
Precautions for adding refrigerant
Use a scale having a precision with at least 10 g per index line when adding
the refrigerant.
Do not use a bathroom scale or similar instrument.
CAUTION
• Do not scratch the inner surface of the fl ared part when removing burrs.
• Flare processing under the condition of scratches on the inner surface
of fl are processing part will cause refrigerant gas leak.
Flare nut Half union
Externally
threaded side Internally
threaded side
Use a wrench to secure. Use a torque wrench to tighten.
CAUTION
Align the centers of the connecting pipes and tighten the fl are nut as far as
possible with your fi ngers. Then tighten the nut with a spanner and torque
wrench as shown in the fi gure.
Tightening connection
Do not apply excess torque. Otherwise, the nut may crack depending on
the conditions.
(Unit : N·m)
Outer dia. of copper pipe Tightening torque
Ø6.35 mm 16 to 18 (1.6 to 1.8 kgf·m)
Ø9.52 mm 30 to 42 (3.0 to 4.2 kgf·m)
Ø12.70 mm 50 to 62 (5.0 to 6.2 kgf·m)
Flare at
indoor unit side
Flare at
outdoor unit side
• Tightening torque of fl are pipe connections
The operating pressure of R32 is higher
than that of R22 (approx. 1.6 times).
It is therefore necessary to
fi rmly tighten
the fl are pipe connecting sections
(which connect the indoor and outdoor
units) up to the speci
fi ed tightening torque.
Incorrect connections may cause not only
a gas leakage, but also damage to the
refrigeration cycle.
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