Daikin M08B128, Installation Manual

Page: 6 / 10

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.
Indoor Unit Installation (3)
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 available.
Be sure to thermally insulate the indoor
section of the extension hose.
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.
1) Do not use tapped wires, stranded wires, extensioncords, 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.
WARNING
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.
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
Indoor unit
drain hose
φ
11/16”
(
φ
18mm)
Extension drain hose
Heat insulation tube
(Field supply)
Drain hose supplied with
the indoor unit Commercially available drain
socket
(nominal diameter 1/2 inch (13mm)) Commercially available rigid
polyvinyl chloride pipe
(nominal diameter 1/2 inch (13mm))
φ
11/16”
(
φ
18mm)
4) 5) Replace the electrical
wiring cover as it was,
and pull the harness
around, as shown
in the figure.
Attach the connection
cord to the S21
connector and pull
the harness out
through the notched
part in the figure.
3) Remove the metal plate
electrical wiring cover.
Screw
Pull
Pull
Slide
Tab
Tab
Slide
Metal plate
electrical cover
Main body
HA connector
(S21)
HA connector
(S21)
Lay the HA cord as
shown in the figure.
3
2
1
1 2 3 L N
When wire length exceeds
33ft (10m), use AWG14 wires.
Use AWG16 or AWG14 wire
for the Interconnecting wires
Outdoor unit
Indoor
unit
Conduit mounting
plate
Lock nut
Back
Conduit
Terminal block
Electrical component box
Use the specified wire type.
Wire retainer
Shape wires so that the
service lid will fit securely.
Tube J