Refrigerant Piping - Toshiba RAV-GM2241AT8-E Installation Manual

 Installation of outdoor unit
• Before installation, check the strength and
horizontalness of the base so that abnormal sounds
do not emanate.
• According to the following base diagram, fix the base
firmly with the anchor bolts.
(Anchor bolt, nut: M10 x 4 pairs)
Drain hole A
573
195 620 195
Drain nipple Drain hole A Drain hole B
mounting hole
• As shown in the figure below, install the foundation
and vibration-proof rubber pads to directly support
the bottom surface of the fixing leg that is in contact
with and underneath the bottom plate of the outdoor
unit.
* When installing the foundation for an outdoor unit
with downward piping, consider the piping work.
Correct
Absorb vibration
with vibration
Fixing leg
proof rubber
pads
Foundation
Correct
Bottom plate of
outdoor unit
Foundation
Support the bottom surface of the fixing leg that is in contact with
and underneath the bottom plate of the outdoor unit.
Incorrect
If only the end of Do not support
the fixing leg is the outdoor unit
supported, it may only with the
deform. fixing leg.
Foundation
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Set the out margin of the anchor bolt to 15 mm or less.
15 or less
• When water is to be drained through the drain hose,
attach the following drain nipple and waterproof
rubber cap, and use the drain hose (Inner dia.:
16 mm) sold on the market. Also seal knockout hole
and the screws securely with silicone material, etc.,
to prevent water from leaking.
Some conditions may cause dewing or dripping of
water.
• When collectively draining discharged water
completely, use a drain pan.
Waterproof rubber cap A
(4 pcs.)
Drain nipple
Waterproof rubber cap B
(1 pc.)
Waterproof
rubber cap A
(4 pcs.)
Drain nipple
Waterproof rubber cap B
(1 pc.)
 For reference
If a heating operation is to be continuously performed
for a long time under the condition that the outdoor
temperature is 0 °C or lower, draining defrosted water
may be difficult due to the bottom plate freezing,
resulting in trouble with the cabinet or fan.
It is recommended to procure an anti-freeze heater
locally in order to safely install the air conditioner.
For details, contact the dealer.
5

Refrigerant piping

 Refrigerant piping
1. Use the following items for the refrigerant
piping.
Material : Seamless phosphorous deoxidized
copper pipe.
ø12.7 Wall thickness 0.8 mm or more
ø28.6 (half hard) Wall thickness 1.0 mm or more.
Do not use any copper pipes with a wall
thickness less than these thicknesses.
Removing service panel
• Remove the screws at 3 locations and slide the
service panel down. Next, detach the right-side
claws followed by left-side claws to remove the
service panel.
When doing this, pulling the service panel towards
the front could damage the claws.
When attaching the service panel, attach the left
claws followed by the right claws and lift the service
panel upwards and secure it with screws in the 3
locations.
Service
panel
Right-side
(1)
plate
Right-side
(2)
Left-side
claws
claws
(3)
– 60 –
 Knockout of pipe cover
Knockout procedure
Rear direction
Pipe cover
Front direction
Side direction
Down direction
• The indoor / outdoor connecting pipes can be
connected in 4 directions.
Take off the knockout part of the pipe cover through
which pipes or wires will pass through the base plate.
• Detach the pipe cover and tap on the knockout
section a few times with the shank of a screwdriver.
A knockout hole can easily be punched.
• After punching out the knockout hole, remove burrs
from the hole and then install the supplied protective
bush and guard material around the passage hole to
protect wires and pipes.
Be sure to attach the pipe covers after pipes have
been connected. Cut the slits under the pipe covers
to facilitate the installation.
After connecting the pipes, be sure to mount the pipe
cover. The pipe cover is easily mounted by cutting off
the slit at the lower part of the pipe cover.
* Be sure to wear heavy work gloves while working.
Supplied protective bush
Supplied passage hole guard
material
* Attach the guard material
securely so that it does not come
loose.
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