Refrigerant Piping - Toshiba RAV-GM802ATW-E Installation Manual

• 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. (GM110, GM140,
GM160 only) Some conditions may cause dewing or
dripping of water.
• When collectively draining discharged water
completely, use a drain pan.
<GM80, GM90>
Waterproof rubber cap B
Drain nipple
(2 pcs.)
Waterproof
rubber cap B
Base plate
Drain nipple
<GM110, GM140, GM160>
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.)
27-EN
■ 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, drain nipple
and drain hose 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.
Drain nipple
Anti-freeze heater
Drain hose
Insulator
5

Refrigerant piping

■ Refrigerant piping
1. Use the following items for the refrigerant
piping.
Material : Seamless phosphorous deoxidized
copper pipe.
Dia.6.35, Dia.9.52, Dia.12.7 Wall thickness
0.8 mm or more
Dia.15.88 Wall thickness 1.0 mm or more
Do not use any copper pipes with a wall
thickness less than these thicknesses.
Removing service panel <GM110, GM140, GM160>
• 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 panel
Left-side
claws
■ Knockout of pipe cover
<GM110, GM140, GM160>
Knockout procedure
Rear direction
Pipe cover
Side direction
Front direction
Down direction
– 14 –
• 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
Right-side
claws
Supplied passage hole guard material
* Attach the guard material securely so that it
does not come loose.
28-EN