Refrigerant Piping; Refrigerant Piping Connection - Toshiba HWS-802H-E Installations-Handbuch

Air to Water Heat Pump
5

REFRIGERANT PIPING

Knockout of Pipe Cover
Front direction
Knockout procedure
• The hydro/outdoor connecting pipes can be
connected to 4 directions.
Take off the knockout part of the pipe cover in which
pipes or wires pass through the base plate.
• Detach the piping cover and give an impact on the
knockout section a few times with the shank of a
screwdriver. A knockout hole can easily be punched.
• After punching the knockout hole, remove burrs of
the hole and then install the supplied protective bush
and guard material for passage part 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.
11-EN
Rear direction
Pipe cover
Side direction
Down direction
Supplied protective bush
Optional Installation Parts
(Local Procure)
Parts name
Refrigerant piping
A Liquid side : Ø9.5 mm
Gas side : Ø15.9 mm
Pipe insulating material
B
(polyethylene foam, 10 mm thick)
C Putty, PVC tapes
Refrigerant Piping
Connection
TAKE NOTICE THESE IMPORTANT
4 POINTS BELOW FOR PIPING WORK
1. Keep dust and moisture away from inside the
connecting pipes.
2. Tightly connect the connection between pipes
and the unit.
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
4. Check gas leak at connected points.
▼ Piping connection
Liquid side
Outer
Thickness
diameter
Ø9.5 mm 0.8 mm
– 12 –
Outdoor Unit Installation Manual
Supplied passage hole guard
material
* Attach the guard material
securely so that it does not
come loose.
Each one
Each one
CAUTION
Gas side
Outer
Thickness
diameter
Ø15.9 mm
Q'ty
1
1.0 mm