Daikin H-Series Engineering Data page 31

Installation Manual
4.
Wiring.
1) As shown in the illustration on the right-hand side, insert the
wires including the ground wire into the conduit and secure
them with lock nut onto the conduit mounting plate.
2) Insert the wires including the ground wire into J tube.
3) Strip wire ends (9/16 inch (15mm)).
4) Match wire colors with terminal numbers on indoor and outdoor unit's
terminal blocks and firmly screw wires to the corresponding terminals.
5) Connect the ground wires to the corresponding terminals.
6) Pull the wires and check that the wires are securely fixed to the
terminal block.
7) In case of connecting to an adapter system, run the remote controller
cable and attach the S21. (Refer to 5. When connecting to an HA system.)
8) Shape the wires so that the service lid fits securely, then close service lid.
WARNING
1) Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overtheating,
electrical shock, or fire.
2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc.,
from the terminal block.) Doing so may cause electric shock or fire.
3) When carrying out wiring connection, take care not to pull at the conduit.
4) Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
5.
When connecting to an HA system.
1) Remove the front grille.
(6 screws, 3 front grille fixtures)
2) Remove the electrical
wiring box. (1 screw)
3) Remove the metal plate
electrical wiring cover.
(4 tabs)
4) Attach the connection
cord to the S21 connector
and pull the harness out through the notched part in the figure.
5) Replace the electrical wiring cover as it was, and pull the harness around, as shown in the figure.
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.
30
Indoor Unit Installation (3)
Screw
3) Remove the metal plate
electrical wiring cover.
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
J Tube
When wire length exceeds
33ft (10m), use AWG14 wires.
Indoor
unit
Tab
Pull
Pull
Slide
Tab
Slide
Metal plate
4) Attach the connection
electrical cover
cord to the S21
connector and pull
the harness out
through the notched
Main body
part in the figure.
3) When drain hose requires extension, obtain
an extension hose commercially available.
Be sure to thermally insulate the indoor
section of the extension hose.
Indoor unit
drain hose
Heat insulation tube
(Field supply)
4) When connecting a rigid polyvinyl chloride pipe
(nominal diameter 1/2 inch (13mm)) directly to the drain
hose attached to the indoor unit as with embedded
piping work, use any commercially available drain
socket (nominal diameter 1/2 inch (13mm)) as a joint.
Drain hose supplied with Commercially available drain
the indoor unit socket
(nominal diameter 1/2 inch (13mm))
EDUS04-924A
Terminal block
Electrical component box
Wire retainer
Shape wires so that the
service lid will fit securely.
Use the specified wire type.
Back
Lock nut
Conduit mounting
plate
Conduit
Outdoor unit
1 2 3 L L
1 2
3
2
1
Use AWG16 or AWG14 wire
for the Interconnecting wires
HA connector
(S21)
Lay the HA cord as
shown in the figure.
HA connector
(S21)
5) Replace the electrical
wiring cover as it was,
and pull the harness
around, as shown
in the figure.
Extension drain hose
Commercially available rigid
polyvinyl chloride pipe
(nominal diameter 1/2 inch (13mm))
Room Air Conditioners H-Series