Panasonic Cz Rwsc1u Installation Instructions

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When 1 indoor unit is operated by 2 remote controllers:
ÞEither of the remotes can be set to main/sub.
Wireless Remote ControllerWired Remote Controller
Receiver(Sold Separately)
Remote Control Wiring 
(Field Supply)
Indoor Unitz Use wiring of AWG#20 – AWG#14 for 
 eld supply.
z Use a total wire length of no more than 
1300 ft. Þ(Main)Þ(Sub)
Warnings about Installation of Receivers
z The wireless remote 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 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.
Warnings about Installing Remote Controllers
z 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.
z If the air conditioner is to be switched from the main sensor to a remote control sensor, pay attention 
to the following when installing.
•  Locate where no warm or cold drafts will affect it.
•  Locate in a place free from direct sunlight.
•  Locate where it will not be affected by any other heat/cold source.
Customer Explanation
z Give the Operating Instructions and this manual to the customer after fi nishing the installation.
z Use the Operating Instructions to explain to the customer how to use and care for the unit.
Things to remember when wired and wireless remotes are 
installed at the same time
Two remote controllers can be used to control the unit if the wireless remote controller is installed at the 
same time as the wired remote controller.
(Up to 2 remotes [a wireless remote controller and the wired remote controller] can be installed.)
When using 2 remotes, one or more units can be operated by the remotes.
  When wiring remote controllers, be sure to double-check the terminal numbers of the indoor unit before 
connecting them so there are no mistakes in the wiring. (Damage will occur if high voltage [e.g. supply 
voltage] is applied.)
  It is not possible to use more than one wireless remote controller with one indoor unit. (A receiver located 
separately can be used at the same time.)
  If both a wireless and a wired remote controller are to be installed and used at the same time, one of 
them must be set up as the sub remote controller.
z  If the wired remote controller is to be the sub remote, change the wired remote controller to the sub remote.
z  If the wireless remote controller is to be the secondary, turn the #3 switch on the wireless receiver (operation 
panel) from OFF to ON.
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INSTALLATION INSTRUCTIONS 
If a group of units are to be controlled by 2 remote controllers;
ÞMain/sub remote controllers will work regardless of which indoor unit they are installed to.
Wireless Remote 
ControllerWired Remote 
Controllerz Use wiring of AWG#20 – AWG#14 for 
 eld supply.
z Make the total wire length when cross-
wiring a group no more than 650 ft.
1st Indoor 
Unit2nd Indoor 
Unit3rd Indoor 
Unit4th Indoor 
Unit Þ(Main)Cross-wiring Remotes for Group 
Control (Field Supply)
CZ-RWSC1U
RCU: MAIN
→
RCU: SUB
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Accessories
Installing the Receiver
When using a separately installed receiver as a built-in model, install it to the switch box (fi eld 
supply) shown in the diagram on the right, which has been built into the wall on site in advance.
No. Accessories Quantity
1Receiver
(Enclosed 7-7/8 in. wiring)1
2
Remote Controller1
3
Remote Control Holder1
4
Dry-cell Batteries 2
5
Plate mounting 1
6
Screw
(M4×1-9/16 in.)2
No. Accessories Quantity
7 Operating Instructions 1
8 Truss Self-Tapping Screws 2
9
Small screw2
10
Wood screw2
11
Cable tie1
12 Spacer 4
13 Ceiling installation pattern 1
1  Remove the face plate of the receiver by slipping a slotted screwdriver or the like into the cutout on the bottom.
2  Install the receiver with the 2 enclosed small screws.
3  Connect the receiver’s wiring (2 cores) with the wiring from the indoor unit. (Refer to the chapter on wiring the 
receiver)
When wiring receivers, be sure to double-check the terminal numbers of the indoor unit before connecting them so 
there are no mistakes in the wiring. (Damage will occur if high voltage [e.g. supply voltage] is applied.)
4  Attach the face plate.
Small screws (2)Receiver Unit
Spacers
Single outlet switch box (no cover)
Face Plate Cutout
When using a separately installed receiver as an exposed model, attach it to a wall where the 
receiver can be affi xed.
1  Put a slotted screwdriver or the like into the groove on the bottom of the receiver unit and twist it to remove the 
bottom of the case. (Fig. A)
2  To enable the receiver’s wiring to stick out from the upper part of the case (thin part at center-top), use side-cutters 
or the like to cut a hole in the case big enough for the remote control wiring (sold separately). (Fig. B)
3  Disconnect the wires that were connected at shipment from the connector.
4  After installing the remote control wiring (sold separately) at the position in Fig. C with the enclosed cable tie, 
connect it to the connector on the receiver.
5  Shape the remote control wiring at the top of the PCB so it fi ts inside the receiver and after confi guring the wiring 
like it is in Fig. D, attach the lower case. When doing this, arrange the head of the cable tie so it face sideways.
6  Remove the face plate and use the woodscrews (2) to install the receiver unit.
7  Use the cord clip that comes enclosed with the remote control wiring to fasten it to the wall.
8  Attach the face plate.
Fig. AFig. BOutlet in the upper part of the case 
for the Remote Control Wiring
Fig. C
Cable tie (Enclosed)
ConnectorRemote Control Wiring 
(Sold Separately) About 5/64 to 1/8 in. 
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Fig. D
Remote Control Wiring 
(Sold Separately) Cable tie 
(Enclosed)
Woodscrews 
(2)Receiver Unit
Þ(Sub)
Model No. CZ-RWSC1U
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When using a receiver that has been installed separately into the ceiling, use the plate 
mounting.
1.  Remove the face plate of the receiver by slipping a slotted screwdriver or the like into the cutout on the bottom.
2.  Cut out a hole in the ceiling to match the dimensions of the ceiling installaion pattern.
3.  Pass the wiring through the plate mounting and put it into the hole. (Fig. A)
4.  Bend parts A and B of the plate mounting so they hold onto the ceiling fi rmly. (Fig. B)
5.  Connect the receiver’s wiring (2 cores) with the wiring from the indoor unit.
(Refer to the chapter on wiring the receiver.)
When wiring receivers, be sure to double-check the terminal numbers of the indoor unit before connecting them so 
there are no mistakes in the wiring. (Damage will occur if high voltage [e.g. supply voltage] is applied.)
6.  Adjust the enclosed spacers so they are several millimeters thicker than the ceiling material and hold the receiver 
in place temporarily with the 2 enclosed small screws.
7.  Bend parts A and B back so they fi t in the opening and are in the gap between the surface of the ceiling and the 
receiver; then tighten the screws. Do not use too much force when tightening the screws. Doing so may warp or 
damage the case. Move the receiver by hand and check that it can move just a little. (Fig. C)
8.  Attach the face plate.
-+
-+
Fig. A Fig. B Fig. CPart A
Part B 
Plate mountingScrews (2)
(M4×1-9/16 in.)
Wiring the Receiver
z  Use wiring of AWG#20 – AWG#14 for  eld supply.
z  Use a total wire length of no more than 1300 ft.
  Polarity does not matter.
If to be used as an embedded model;z Wiring Diagram
9Ý
9Þ9Ý
9ÞTerminal strip for wiring the 
Remote Controller of the 
indoor unitConnections
Receiver wires 
( eld supply)Wires from the 
receiver unitReceiver
  Enclosed wire joints (2, white)
Receiver wires 
( eld supply)
Wire joint (Enclosed) Receiver wires 
( eld supply)White
Black1.  Strip the wire to be connected of its sheathing for 35/64 in.
2.  Twist the two wires together and crimp the enclosed wire joint.
3.  If a special crimping tool is not used, or if the connection is made using solder, 
wrap the joint with insulating tape.
Test Operation
Implementing a Test Run1.  Remove the face plate of the receiver’s PCB and turn the DIP switch to RUN/On (Down 
à Up) and operate the 
wireless remote controller with its Start/Stop button.
2.  During a test run, all display lamps on the display will light up.
3.  During a test run, it is not possible to adjust the temperature.
4.  After completing a test run, be absolutely sure to return the Test Run switch to OFF (Up
à Down) and make sure 
none of the display lamps are blinking. Also, put the face plate back in place.
  This is hard on the device, so only use this for the test run.
  After turning on the power, the unit will not receive any commands from the remote controller for about 1 
minute. This is not an error. (In fact it does receive signals, but they are cancelled.
£
  Make sure to operate while the indoor unit is stopped.
  The address of indoor unit is set to “ALL” at the time of the shipment.
Address Display 
on the Remote 
Controller~~~~~~~~~~
Position of 
the Receiver’s 
Address SwitchIt doesn’t matter 
where the receiver’s 
address switch is.
~~~~~~~~~~
Setting Address Switches
z  When more than one receiver and remote controllers are installed in the same room, setting up addresses allows 
them to avoid interfering with each other.
z  Refer to the Operating Instructions for information on how to change the addresses of the remote controllers.
z  Changing the address of a receiver can be done after removing the screw to the receiver’s PCB cover. Once the 
change is complete, put the cover back in place; while holding the wiring with the cable clamp, tighten its screw.
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If it is to be used as an exposed model:z Wiring Diagram
  When wiring remote controllers, be sure to double-check the terminal numbers of the indoor unit 
connecting them so there are no mistakes in the wiring. (Damage will occur if high voltage [e.g. supply 
voltage] is applied.)
  If the wiring to the operation panel is bundled together with other wiring, such as the incoming line from 
the power source, it can cause a malfunction, so avoid doing so.
  If something causes the unit’s power source to make noise, it will be necessary to resolve the problem, 
such as by installing a noise  lter.
Receiver Terminal strip for wiring 
the Remote Controller of 
the indoor unit
Remote Control Wiring 
(Sold Separately)
z  Use remote control wiring (sold separately) for wiring a separately installed receiver.1.  For instructions on how to install a remote control wiring (sold separately), refer to the chapter on Using as an 
Embedded Model in Installing Separate Receivers.
2.  If a remote control wiring (sold separately) is to be used, refer to the Mounting Instructions attached to the remote 
control wiring.
WhiteBlack
The Self-Diagnosis Function Display and What is Detected
Alarm Display in the table below indicates the content of alarms that are displayed when a wired remote 
controller is connected. For information on how to deal with the alarms, refer to the Mounting Instructions for 
the indoor unit or to Test Run or servicing materials.
Ô: Off / 
Ó: On / 
Õ: Blinking (0.5 sec. intervals)
Common to All Modelsz  The indoor unit and the wireless remote controller are equipped with 
indoor temperature sensors. The sensing of indoor temperature works 
via one of them.
z  When the unit is shipped, it is set to the indoor unit, but to switch to 
the remote controller, press the sensor button (diagram at right) inside 
the remote controller’s cover and then check to make sure that Main 
Sensor on the LCD screen goes off.
  Even when the sensor switch has been set to the remote 
controller, if the unit does not receive any room temperature 
data from the remote controller for ten minutes, it 
automatically switches back to the indoor unit sensor, so be 
sure to install the remote controller facing the receiver.
Error Detected WL Remote Control LED Display
Alarm Display Run Timer Standby Blinking
Communication error in the remote control 
circuitE01–E03, E08–E14, E17, E18
ÕÔÔ
Communication error either in the in/
outdoor operation line or the sub-bus of 
the outdoor unitE04–E07, E15, E16, E19–E31ÔÔÕ
Operation of indoor protection device P01, P09–P14ÔÕÕAlternately
Operation of outdoor protection device P02–P08, P15–P31
ÕÔÕAlternately
Error in the indoor thermistor F01–F03, F10–F11
ÕÕÔAlternately
Error in the outdoor thermistor F04–F09, F12–F28
ÕÕÓAlternately
Error in the indoor EEPROM F29
ÕÕÔSimultaneously
Error in the outdoor EEPROM F30, F31
ÕÕÓSimultaneously
Error related to the compressor H01–H31
ÔÕÔ
Error in indoor settings L01–L03, L05–L09ÕÔÕSimultaneously
Error in outdoor settings L04, L10–L31
ÕÓÕSimultaneously
Inconsistency in Air/Heat (Including an auto-temp setting for a model without 
auto-temp settings)
ÓÕÕAlternately
Oil Alarm (Same as operation of outdoor protection device)
ÕÔÕAlternately
Test Run
ÕÕÕSimultaneously
Room Temperature Sensor Settings
Sensor Button
Setting Up Remote Control Functions
The functions of the wireless remote can be set on site.
(These settings are saved in nonvolatile memory in the remote controller, so even when its batteries are 
changed, the settings do not revert to the defaults.)
   The operation of the air conditioner can be impacted, depending on the settings made, so only service 
personnel should make the settings.
  Furthermore, making changes to these settings may cause actual operation to deviate from what is 
printed in the Operating Instructions, so be sure to explain this to the customer fully.
Making Settings (Do with unit stopped.)1.  Holding down the Swing/Wind Direction + OFF Timer  + Mode Select buttons at the same time for 4 or more 
seconds makes the display switch to the setting screen. (See Diagram 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 settings display of the LCD 
changes from blinking to light.
5.  If other settings are to be changed as well, repeat steps 2 to 4.
6.  When all settings have been made, press the Start/Stop button.
Example: Operation mode setting screen
Note 1  While the unit is in the swinging mode (Swing/Wind Direction), the  ap cannot be stopped in a desired 
position.
Note 2  When Setting OFF is selected, “°C” is displayed on the LCD screen.
Note 3  You can toggle between ON and OFF by pressing Ventilation for 4 seconds or more.
Note 4  If the Heater Max ON/OFF setting is not changed to EP (ON), the setting change will not be re ected.
Note 5  This is the number of addresses that can be set in the address change mode. Do not set it to 07 or above.
Item Number & Setting Item Setting Content Setting when 
Shipped
1
Operation Mode
       
   
2
Flap Display      
3
Select Fan Speed
      
4
Display of Set 
Temperature °F 
 Setting Off (Note 2)  °C °F
5
Time Display AM/PM 
 24 Hour (No Display) AM/PM
6
Ventilation Fan ON/OFF Off (No Display) 
 On OFF (Note 3)
7
Cool temp Max 41 – 95°F 86°F
8
Cool temp Min 41 – 95°F 64°F
9
Heat temp Max 41 – 95°F 78°F 
(Note 4)
10
Heat temp Min 41 – 95°F 60°F
11
Dry temp Max 41 – 95°F 86°F
12
Dry temp Min 41 – 95°F 64°F
13Auto temp Max 41 – 95°F 80°F
14
Auto temp Min 41 – 95°F 62°F
16
Address Setting Max 
Value00 (ALL only) 
 01 – 31 06 (Note 5)
17
Heat temp Max ON/OFF JP (Heater Max Temp Change Off)  
  EP (On)JP
1 4 326
(Note 1) (No Display) 
 (No Display) 
Item 
Number
Printed in Japan
85464369519011
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