Panasonic CZ-RWRU3 User manual

Installation Instructions
Infrared Receiver for U
Model No. CZ-RWRU3
CZ-RWRU3W
Part Names ................................................... 2
Supplied accessories .................................. 2
Safety Precautions ...................................... 3
Specifi cations .............................................. 5
Installation Precautions .............................. 6
Wiring ........................................................... 7
Mounting ...................................................... 8
Setting .......................................................... 9
Address Setting ................................................9
Test Operation ........................................... 10
Self-diagnostics table and
detected contents ............................................11
Contents
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 3.
W1121-0

2(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
< >: Number of pieces
Installation Instructions
<1>
Installation Instructions Disc
<1>
Clamper
<1>

3
(EN)
Safety Precautions
We assume no responsibility for accidents
or damages resulting from methods other
than those described in the installation
instructions or methods without using
specifi ed 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.
 After the installation is complete,
perform test operation to confi rm that no
abnormality is present.
 When relocating or repairing this receiver,
provide the Installation Instructions to the
servicing personnel.
 Do not clean inside the receiver by users.
Engage authorised dealer or specialist
for cleaning.
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.
 This receiver shall be installed
in accordance with National
Wiring Regulations.
 Connect and fi x the specifi ed
cables for wiring securely.
 Do not allow the connection
to be exposed to the external
force of the cables.
 Select an installation location
which is rigid and strong
enough to support or hold the
receiver, and select a location
for easy maintenance.
 This receiver must not be
modifi ed or disassembled
under any circumstances.
Modifi ed or disassembled
receiver may cause fi re,
electric shock or injury.
Read before installation
This receiver must be installed by the sales dealer or installer.
These instructions are all you need for most installation sites and maintenance conditions.
If you require help for a special problem, contact our sales/service outlet or your certifi ed
dealer for additional instructions.

4(EN)
Safety Precautions
CAUTION
 Do not use the receiver at the
following locations.
• Location where fl ammable
gases, etc. may leak
• Location where corrosive
gases, etc. may leak
• Location with lots of water
or oil droplets (including
machine oil)
• Location where droplets of
organic solvents spread
• Location where acidic or
alkaline solutions or special
sprays are frequently used
 Do not wash with water.
 Do not operate with wet
hands.
NOTICE The English text is the original instructions. Other languages are translation of
the original instructions.

5
(EN)
Specifi cations
Model No. CZ-RWRU3 / CZ-RWRU3W
Dimensions (H) 29.7 mm × (W) 211.8 mm × (D) 211.8 mm
Weight 160 g
Temperature /
Humidity range
0 °C to 40 °C / 20% to 80% (No condensation)
*Indoor use only.
Power Source DC16 V (supplied from indoor unit)

6(EN)
Installation Precautions
The receiver uses a very weak infrared light for its signal, which can result in the signal not being
received because of the following infl uences, so take care in where the indoor unit is installed.
• Inverter or rapid-start type fl uorescent lights (Models without glow lamps)
• Plasma display or LCD televisions
• Direct sunlight or other sources of bright light
Do not bundle together with the power source wiring or store in the same metal tube. Operation
error may occur.
Be careful not to connect cables to other terminals of indoor units (e.g. power source wiring
terminal). Malfunction may occur.
Avoid the following locations for installation.
• Location where condensation occurs
• Location where voltage fl uctuation frequently occurs
• Location where there is a machine producing electromagnetic radiation

7
(EN)
Wiring
Connect the wires from the receiver to the terminals for RC wiring on the indoor unit.
Wiring Diagram
R1
R2
Infrared Receiver for UIndoor unit
CN001
2P white
Terminals for RC wiring
RC wiring
• No polarity
Installation when setting Main/Sub for the remote controller and the receiver
It is possible to operate one or more indoor units using two remote controllers.
After installation, set one to [Main] and the other to [Sub].
When using the infrared remote controller and the wired remote controller in combination, set the
wired remote controller to [Main].
<Installation example>
R1 R2
12 CN001
R1 R2 R1 R2 R1 R2
12 CN001
Indoor unitIndoor unit Indoor unit Indoor unit
Terminals for
RC wiring
RC wiring
• No polarity
Receiver
(Sub)
Wired RC
(Main)
Receiver
(Sub)
Wired RC
(Main)
 Using 1 indoor unit  Using more than 1 indoor unit
Note
The receiver can be connected to any indoor unit for operation.
Multiple infrared remote controllers cannot be used simultaneously for a single indoor unit.
Wiring connected via remote controllers is prohibited.
Also see the “Installation Instructions” supplied with the indoor unit or wired remote controller when
performing remote control with the main and sub remote controllers or group-controlling.

8(EN)
Mounting
1 Remove the air inlet grille.
Installation position for
receiver (Fig. A)
Indoor unit electric
component box
Air Inlet grille
Ceiling panel
2 Remove the screw fi xing the corner cover.
Screw
Corner cover
3 Place a hand on both the right and left convex
parts of the corner cover to remove it.
Convex partCeiling panel
Corner cover
Corner cover
4 Hang the string of the receiver on the pin of
the ceiling panel.
Receiver
Pin
String
Ceiling panel
5 Pass the wiring from the receiver section into
the slit.
For more wiring information, see the section
“Wiring”.
6 Fix the wiring with the clamper (supplied) while
leaving enough length of wiring to remove the
receiver.
●When attaching the fi lter chamber, cut the
clamper (a), and attach the receiver.
Slit
Fix with the clamper (supplied).
(a) Cut this clamper.
7 Fit the receiver to the ceiling panel so the
5 claws are properly set, and fi x it with the
removed screw.
●Make sure the wire is not caught.
●Refer to the installation instructions supplied
with the panel.
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.

9
(EN)
Setting
Before installing the receiver, check the settings of the receiver address switches.
Remove the cover from the receiver when performing the settings.
ON
123 4
Screw
Cover
Receiver
Main/Sub switch (4)*
OFF: Main
ON: Sub
Factory default: OFF (1 – 4)
Address switch (1 – 3)
* When using the infrared remote controller and the wired remote controller in combination, set the
wired remote controller to [Main].
Address Setting
When more than 1 receiver is installed in the same room, setting addresses prevents interference.
For how to change addresses of infrared remote controllers, see the operating instructions of
infrared remote controllers.
Infrared remote
controller
address display
Address Address Address Address Address Address Address ON/OFF
States
ALL123456
Infrared
receiver
address switch
positions
Receiving is
possible at
all address
positions.
1234 1234 1234 1234 1234 1234 OFF ON

10 (EN)
Test Operation
Preparation: Turn on the circuit breaker of units and then turn the power on. After the power is turned
on, infrared 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 Press and hold the emergency operation button for 10 seconds.
2 The indication lamps (OPERATION, TIMER, STANDBY) blink during test operation.
3 To fi nish 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.
The test operation can be performed in Heat or Cool mode.
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.

11
(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, “Service Manual”, “Test Run Service Manual” or “Technical Data”.
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
Auto addressing in progress
(when it is performed with an infrared remote controller) ◎◎◎
Sequentially
Test operation ◎◎◎
Simultaneously
: OFF : ON (Illuminated) ◎: Blinking (0.5 seconds interval)
Test Operation

Panasonic Corporation
http://www.panasonic.com
© Panasonic Corporation 2018-2021 W1121-0
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This symbol on the products, packaging, and/or accompanying documents means that used
electrical and electronic products must not be mixed with general household waste.
For proper treatment, recovery and recycling of old products, please take them to applicable
collection points in accordance with your national legislation.
By disposing of them correctly, you will help to save valuable resources and prevent any
potential negative eff ects on human health and the environment. For more information about
collection and recycling, please contact your local municipality.
Penalties may be applicable for incorrect disposal of this waste, in accordance with national
legislation.