Panasonic CZ-RWSU3 Service manual

English
Read through the Installation Instructions before you proceed
with the installation.
In particular, you will need to read under the “Safety
Precautions” on page 2.
Installation Instructions
Wireless Remote Controller
Model No. CZ-RWSU3
Panasonic Corporation
1006 Kadoma, Kadoma City, Osaka, Japan
H0916-0
CV6233317755
Panasonic Corporation
http://www.panasonic.com
Contents
Safety Precautions ...................................... 2
Part Names................................................... 3
Supplied accessories.................................. 3
Specifications .............................................. 3
Installation Precautions.............................. 4
Installation Location for the Receiver............... 4
Mounting ...................................................... 4
Installing the Receiver...................................... 4
Wiring ........................................................... 5
Basic Wiring Diagram....................................... 5
Wiring for the Receiver..................................... 5
Settings ........................................................ 6
Setting for receiver........................................... 6
Setting for Wireless Remote Controller............ 6
Test Operation.................................................. 8
Self-diagnostics table and
detected contents............................................. 9

2(EN)
Safety Precautions
Read before installation
Read the Installation Instructions carefully
to install the remote controller correctly and
safely.
Be sure to read the Safety Precautions in
particular before installation.
After the installation is complete, perform test
operation to confirm that no abnormality is
present.
We assume no responsibility for accidents or
damages resulting from methods other than
those described in the installation instructions
or methods without using specified parts.
Malfunctions that occurred due to the
unauthorised installation methods are not
covered by the product warranty.
Read the installation instructions supplied with
indoor units as well.
WARNING
This symbol refers to a hazard or unsafe
practice which can result in severe personal
injury or death.
CAUTION
This symbol refers to a hazard or unsafe
practice which can result in personal injury or
product or property damage.
WARNING
• Turn off the circuit breaker of the units before
installation.
• Ask your dealer or professionals for installation
and electric work.
• This controller shall be installed in accordance
with National Wiring Regulations.
• Connect and fix the specified cables for wiring
securely.
• Do not allow the connection to be exposed to
the external force of the cables.
• Choose an installation location that sufficiently
supports the weight of the remote controller.
CAUTION
Do not use the remote controller at the
following locations.
• Location where condensation occurs
• Location where flammable gases, etc. may
leak
• Location where corrosive gases, etc. may leak
• Location with lots of water or oil droplets
(including machine oil)
• Location where voltage fluctuation frequently
occurs
• Location where there is a machine producing
electromagnetic radiation
• Location where droplets of organic solvents
spread
• Location where acidic or alkaline solutions or
special sprays are frequently used
Do not operate with wet hands.
Do not wash with water.
NOTICE
The English text is the original instructions. Other languages are translation of the original
instructions.

3
(EN)
Part Names
(1) Light receiving section
Receives signals.
(2) Indication lamp
Indicates operation status.
(3) Emergency operation button
Starts/Stops emergency operation.
Supplied accessories
Wireless Remote
Controller
(1)
Remote Control
Holder
(1)
LR03 Size
Battery
(2)
Instructions
(1)
Quick
Reference
(1)
Screw
M4 × 16
(2)
Clamper
(1)
Specifications
Wireless Remote Controller
Dimensions (H)182 mm × (W) 61 mm × (D)18.5 mm
Weight 140 g(Including batteries)
Power Source Two LR03 size batteries
Clock Accuracy ±30 seconds / month (at 25 °C)
Receiver
Dimensions 29.7 mm (H) × 211.8 mm (W) × 211.8 mm (D)
Weight 160 g
Power Source DC16 V (supplied from indoor unit)

4(EN)
Installation Precautions
Installation Location for the Receiver
 The wireless remote controllers use a very weak infrared light for its signal, which can result in the
signal not being received because of the following influences, so take care in where the unit is installed.
• Inverter or rapid-start type fluorescent lights (Models without glow lamps)
• Plasma display or LCD televisions
• Direct sunlight or other sources of bright light
Mounting
Installing the Receiver
The receiver can be installed only on the
corner shown in Fig. A. Consider the direction
where the panel is attached to the indoor unit.
1Remove the air inlet grille
Indoor unit electric component box
Installation position for receiver
(Fig. A)
Indoor unit electric
component box
Air Inlet grille
2Remove the corner cover.
Remove the screw fixing the corner
cover.
Screw
Corner cover
Convex part
Place a hand on both the right and left
convex parts of the corner cover to
remove it.
Corner coverCeiling panel
3Wire the receiver.
Hang the string of the receiver on the pin
of the ceiling panel.
Receiver
Pin
String
Pass the wiring from the wireless
receiver section into the slit.
(See “Wiring for the Receiver”)
Fix the wiring with the clamper (supplied)
while leaving enough length of wiring to
remove the receiver.
• When attaching the filter chamber, cut
the clamper (a), and attach the receiver.
Slit
Fix with the clamper (supplied).
(a) Cut this clamper.
4Fix the receiver.
Fit the receiver to the ceiling panel so
the 5 claws are properly set, and fix it
with the removed screw.
• Make sure the wire
is not caught.
• Refer to the
installation
instructions
supplied with the
panel.

5
(EN)
Wiring
Basic Wiring Diagram
Installation when setting Main/Sub for the remote controller and the receiver
12 12
R1 R2R1 R2R1 R2R1 R2
RC wiring (field supply)
• No polarity
Indoor unit Indoor unit Indoor unit Indoor unit
1212
R1 R2
Terminals for
RC wiring
Receiver (Sub) Receiver (Sub)
Wired RC (Main) Wired RC (Main)
Indoor unit
Using 1 indoor unit Using more than 1 indoor unit
RC wiring
(field supply)
• No polarity
Installation
example
After installation, according to the “Settings” section, set one to [Main] and the other to [Sub].
Setting the wired remote controller to [Main] is recommended.
Attention
Multiple wireless remote controllers cannot be used simultaneously for a single indoor unit.
Be careful not to connect cables to other terminals of indoor units (e.g. power source wiring
terminal). Malfunction may occur.
Do not bundle together with the power source wiring or store in the same metal tube. Operation
error may occur.
If noise is induced to the unit power supply, attach a noise filter.
* Wiring shown below is prohibited.
R1 R2 R1 R2 R1 R2
12 12
12
Wired RC Receiver
Indoor unit Indoor unit Indoor unit
RC wiring
Receiver
Note
The remote controller and the receiver can be connected to any indoor unit for operation.
Wiring for the Receiver
Wiring Diagram
CN001
R1
R2
Receiver PCBIndoor unit
Terminals for RC
wiring 2P white
How to Connect the Wires
• Connect the wires from the receiver to the terminals for RC wiring on the indoor unit.
(No polarity)

6(EN)
Settings
Setting for receiver
Screw
PCB cover
Receiver PCB Main/Sub selector
switch for remote
controllers (4)
OFF: Main
ON: Sub
Set its address
(1) to (3)
All set at OFF
when shipped
from the factory.
ON
123 4
Check the settings of the
[S003] DIP switch on the
receiver’s PCB.
* Remove the cover from the
receiver when performing
the PCB settings.
Setting Address Switches
When more than 1 receiver is installed in the same room, setting addresses prevents interference.
For how to change addresses of wireless remote controllers, see the operating instructions of
wireless remote controllers.
To change the receiver’s address, remove the cover from the receiver’s PCB and set No.1 to No.3
of the [003] DIP switch on PCB.
Remote
Controller
Address
Display
Address Address Address Address Address Address Address ON/OFF
States
ALL123456
Position
of the
receiver’s
address
switch
Receipt is
possible
at all
of the
address
positions
1234 1234 1234 1234 1234 1234 OFF ON
Setting for Wireless Remote Controller
Room Temperature Sensor Settings
The indoor unit and the wireless remote controller are equipped with
room temperature sensors. The sensing of room temperature works via
one of them.
When the unit is shipped, it is set to the indoor unit. To switch it to the
remote controller, press the sensor button (the figure on the right) inside
the remote controller’s cover and then check that Main Sensor on the
LCD screen goes off.
<Note> Be sure to install the remote controller so as to face the receiver.
If the unit does not receive any room temperature data from the
remote controller for ten minutes even with its sensing function
activated, the indoor unit sensor will automatically start sensing the
room temperature.
Sensor button

7
(EN)
Setting Up Remote Controller Functions
The functions of the wireless remote controller can be set on site.
(These settings are saved in nonvolatile memory in the remote controller. Therefore, the settings do
not revert to the defaults even when its batteries are changed.)
<Note> Only service personnel should make the settings because the operation of the air conditioner
may be affected, depending on the settings made.
Furthermore, making changes to these settings may cause actual operation to deviate from
what is printed in the Operating Instructions, so be sure to fully explain this to the customer.
Making Settings (Do with unit stopped)
(1) Holding down the swing/flap ( ) + OFF timer ( ) + mode select ( ) buttons at the same
time for 4 or more seconds will open the setting screen. (See figure below.)
(2) Use the Temperature setting buttons / ( ) to select the number of the item to be set.
(3) Use the ON timer buttons / ( ) to change settings.
(4) The settings are saved with the once/every day button ( ). When this is done, the SET displayed
on the LCD changes from blinking to lighting.
(5) If other settings are to be changed, repeat steps (2) to (4).
(6) When all settings have been made, press the start/stop ( ) button.
Operation procedure and
function display
Item
Number
(1)
(2)
(6)
(3)
(4)
Detected contents Set Contents Factory
setting
1 Operation Mode
2 Flap Display (No Display)
(*1)
3 Select Fan Speed (No Display)
4 Display of Set
Temperature
°C °F Setting Off (*2) °C
5 Time Display 24 Hour (No Display) AM/PM 24 Hour
6 Ventilation Fan
ON/OFF
OFF (No Display) ON OFF
(*3)
7 Cool temp Max 05 to 35°C 30
8 Cool temp Min 05 to 35°C 18
9 Heat temp Max 05 to 35°C 30 (*4)
10 Heat temp Min 05 to 35°C 16
11 Dry temp Max 05 to 35°C 30
12 Dry temp Min 05 to 35°C 18
13 Auto temp Max 05 to 35°C 27
14 Auto temp Min 05 to 35°C 17
16 Address Setting
Max Value
00 (ALL only) 01 to 031 06 (*5)
17 Heat temp Max
ON/OFF
JP (Heater Max Temp Change
Off) EP (ON)
JP
Attention
While the unit is in the SWING mode (swing/flap), the flap cannot be stopped in a desired position.
When Setting OFF is selected, “°C” is displayed on the LCD.
You can toggle between ON and OFF by pressing ventilation “( )”button for 4 seconds or more.
If the Heater Max ON/OFF setting is not changed to EP (ON), the setting change will not be
reflected.
This is the number of addresses that can be set in the address change mode. Do not set it to 07 or
above.

8(EN)
Installing Wireless Remote Controller
Installation location for the Wireless Remote Controller
If a remote controller is to be operated from a remote control holder that is hung on a wall, turn
on the lights in the room as well as any electrical appliances and then check to make sure the air
conditioner works with the remote controller in the location where it will be installed. If it works,
continue with installation.
If the main sensor is to be switched from the indoor unit to a remote controller, pay attention to the
following when installing.
• Locate where no warm or cold air will affect it.
• Locate in a place free from direct sunlight.
• Locate where it will not be affected by any other heat/cold source.
When installing the remote controller onto a wall, etc.
Screw the remote control
holder.
Remote control holder
Installing the remote
controller
2Press
1Insert
Press at the installation location
on the wall, and check that normal
receiving is possible.
Remove the remote controller from the
remote control holder.
Test Operation
Preparation: Turn on the circuit breaker of units and then turn the power on. After the power is turned
on, remote controller operation is ignored for approx. 1 minute because setting is being
made. This is not malfunction. (Contents received while setting are disabled.)
1. To start test operation, press and hold the emergency operation button for 10 seconds.
2. The indication lamps (OPERATION, TIMER, STANDBY) blink during test operation.
3. To finish test operation, press and hold the emergency operation button for 10 seconds.
Attention
Do not use this mode for purposes other than the test operation.
(To prevent overload of the units)
Read the installation instructions supplied with the units.
Any of the Heat, Cool and Fan operations can only be performed.
Temperature cannot be changed.
The test operation mode is automatically turned off in 60 minutes.
(To prevent continuous test operation)
Outdoor units do not operate for approx. 3 minutes after the power is turned on or operation is
stopped.
Settings

9
(EN)
Self-diagnostics table and detected contents
The “Alarm Display” shown in the table below expresses the alarm contents displayed when the
wired remote controller is connected. For how to handle the alarms, see installation instructions of
indoor units or technical guide.
Detected contents Indication lamp on the receiver
Alarm Display
OPERATION TIMER STANDBY Blinking
Communication error in the remote
controller circuit
E01–E03, E08–E14,
E17, E18 ◎
Communication error either in the in/
outdoor operation line or the sub-bus of
the outdoor unit
E04–E07, E15, E16,
E19–E31 
◎
Operation of indoor protection device P01, P09–P14 ◎◎
Alternately
Operation of outdoor protection device P02–P08, P15–P31 ◎◎Alternately
Error in the indoor thermistor F01–F03, F10–F11 ◎◎
Alternately
Error in the outdoor thermistor F04–F09, F12–F28 ◎◎
Alternately
Error in the indoor EEPROM F29 ◎◎

Simultaneously
Error in the outdoor EEPROM F30, F31 ◎◎

Simultaneously
Error related to the compressor H01–H31 ◎
Error in indoor settings L01–L03, L05–L09 ◎◎ Simultaneously
Error in outdoor settings L04, L10–L31 ◎◎ Simultaneously
Error in the gas heat pump air
conditioner A01–A31 ◎◎
Simultaneously
Inconsistency in Cooling/Heating (Including an auto-temp
setting for a model without auto-temp settings) ◎◎
Alternately
Oil alarm (Same as operation of outdoor protection device) ◎◎Alternately
Test operation ◎◎◎
Simultaneously
: OFF : ON (Illuminated) ◎: Blinking (0.5 seconds interval)

© Panasonic Corporation 2016