Panasonic CS-W7NKD / CS-W9NKD / CS-W12NKD / CS-W18NKD / CS-W24NKD / CU-W7NKD / CU-W9NKD / CU-W12NKD / CU-W18NKD / CU-W24NKD Service Manual ▷ View online
41
11.3.4 Connect the Cable to the Outdoor Unit
1 Remove the control board cover from the unit
by loosening the screw.
2 Connection cable between indoor unit and
outdoor unit shall be approved polychloroprene
sheathed 5 x 1.5 mm
sheathed 5 x 1.5 mm
2
(3/4 ~ 1.5HP) or 5 x 2.5
mm
2
(2.0 ~ 2.5HP) flexible cord, type
designation 245 IEC 57 or heavier cord.
3 Secure the cable onto the control board with the
holder.
4 Attach the control board cover back to the
original position with screw.
5 For wire stripping and connection requirement,
refer to instruction 5 of indoor unit.
Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.
11.3.5 Piping
Insulation
1 Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation
Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
2 If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by
using POLY-E FOAM with thickness 6 mm or above.
42
12. Operation
Control
12.1 Heating Operation
Heating operation can be set using remote control.
This operation is applied to warm the room temperature reaches the setting temperature set on the remote
control.
The remote control setting temperature, which takes the reading of intake air temperature sensor, can be
adjusted from 16°C to 30°C.
During heating operation, the compressor will stop running and restart as shown in below figure.
12.1.1 Heating Operation Time Diagram
43
12.2 Cooling Operation
Cooling operation can be set using remote control.
This operation is applied to cool down the room temperature to the setting temperature set on the remote control.
The remote control setting temperature, which takes the reading of intake air temperature sensor, can be
adjusted from 16°C to 30°C.
During cooling operation, the compressor will stop and restart as shown in figure below:
12.2.1 Cooling Operation Time Diagram
44
12.3 Soft Dry Operation
Soft Dry operation can be set using remote control.
Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.
This operation starts when the intake air temperature sensor reaches the setting temperature on the remote
control.
When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be
turn “OFF” for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the
setting temperature as shown in figure below.
setting temperature as shown in figure below.
However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the
indoor unit will start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON”
point.
point.
12.3.1 Soft Dry Operation Time Diagram
Click on the first or last page to see other CS-W7NKD / CS-W9NKD / CS-W12NKD / CS-W18NKD / CS-W24NKD / CU-W7NKD / CU-W9NKD / CU-W12NKD / CU-W18NKD / CU-W24NKD service manuals if exist.