When Connecting To An Ha System; Drain Piping - Daikin R-410A Split series Installation Manual

Indoor Unit Installation
5.

When connecting to an HA system.

1) Remove the front grille. (2 screws)
2) Remove the electrical wiring box. (3 screws)
3) Remove the metal plate electrical wiring cover. (4 tabs)
4) Remove the resin plastic electrical wiring cover. (2 tabs)
5) Attach the connection cord to the S21 connector and pull the harness out through the notched part in the figure.
6) Replace the electrical wiring cover as it was, and pull the harness around, as shown in the figure.
3) Remove the metal
plate electrical
wiring cover.
6.

Drain piping.

1) Connect the drain hose, as described below.
2) Remove the air filters and pour some water into the drain pan to check the water
flows smoothly.
3) When drain hose requires extension, obtain an extension hose commercially avail-
able.
Be sure to thermally insulate the indoor section of the extension hose.
4) When connecting a rigid polyvinyl chloride pipe
(nominal diameter 13 mm) directly to the drain
hose attached to the indoor unit as with embed-
ded piping work, use any commercially available
drain socket (nominal diameter 13 mm) as a
joint.
9
Tab
Press
Slide
Tab
Press
Slide
Press
Screws
Drain hose supplied with
the indoor unit
Tab
Notched part
HA cord
HA connector
(S21)
4), 5) Attach to the S21 connector
and take the harness out of the
notched part on the mounting.
Indoor unit
drain hose
Commercially available drain
socket
(nominal diameter 13 mm)
Tab
6) Pull-around figure
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
Extension drain hose
Heat insulation tube
(Field supply)
Commercially available rigid
polyvinyl chloride pipe
(nominal diameter 13 mm)
IEnglish