Refrigerant Piping; Knockout Procedure - Toshiba Estia HWS-803H-E Manuel D'installation

Air to Water Heat Pump
• When collectively draining discharged water
completely, use a drain pan.
Drain nipple
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 to water heat
pump.
For details, contact the dealer.
13-EN
Waterproof rubber cap
Drain nipple
Waterproof rubber cap
Knockout hole
5
REFRIGERANT
PIPING
Knockout of Pipe Cover

Knockout procedure

Front 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.
– 13 –
Installation Manual
Rear direction
Pipe cover
Side direction
Down direction