Installation Location; Refrigerant Piping Connection - Toshiba Carrier RAS-12EKCV-UL Service Manual

10-3. Outdoor Unit

10-3-1. Installation Location

• A location which provides enough spaces around
the outdoor unit as shown in the diagram above.
• A location which can bear the weight of the outdoor
unit and does not allow an increase in noise level
and vibration.
• A location where the operation noise and discharged
air do not disturb your neighbors.
• A location which is not exposed to a strong winds
• A location free of combustible gases leaks.
• A location which does not block a passage.
• A location where drain water does not cause any
problems.
• Depending on snow level, use a field fabricated ice
or snow stand.
• When the outdoor unit is to be installed in an elevated
position, be sure to secure its feet as described in the
section above.
Precautions about lnstallation is Regions
with Snowfall and Cold Temperatures
• Do not use the supplied drain nipple for draining
water. Drain the water from all drain holes directly.
To protect the outdoor unit from snow accumulation,
•
install a holding frame, and attach a snow protection
hood and plate.
Do not use a double-stacked design.
•
Snow protection plate
Front
Snow protection hood
At least
19-11/16 in. (500 mm)
Snow accumulation line
Anchor
bolts
Fig. 10-3-1
Install the unit at least
19-11/16 in. (500 mm)
above the snow
accumulation line.
Holding frame
1. Install the outdoor unit in a location where there
are no obstructions near its air intake or air outlet.
2. When the outdoor units is installed in a place
that is always exposed to strong winds like on
the coast or on a high story of a building, use
a field fabricated wind baffle. To minimize the
effect of strong winds, specially in windy areas,
install the unit as shown below.

10-3-2. Refrigerant Piping Connection

Flaring
1. Make sure you have enough pipe to reach indoor unit.
2. Cut the pipe with a pipe cutter.
3. Insert a flare nut into the pipe and flare the pipe.
Tightening connection
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 two wrenches as show
below.
Half union
Externally
threaded side
Use a wrench to secure.
Do not apply excess torque. Otherwise, the nut
may crack depending on the conditions.
– 52 –
FILE NO. SVM-13071
CAUTION
Strong
wind
Fig. 10-3-2
90 °
Obliquity Roughness
Fig. 10-3-3
Flare nut
Internally
threaded side
Use a torque wrench to tighten.
Fig. 10-3-4
CAUTION
Warp Warp