Panasonic CZ-RWSU1U Installation Manual

Warnings about Installation of Receivers

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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

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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.

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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

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Give the Operating Instructions and this manual to the customer after ﬁ nishing the installation.

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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 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.

<Note> 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.)

<Note> 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.)

<Note> 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.

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If the wired remote controller is to be the sub remote, change the wired remote controller to the sub remote.

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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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When 1 indoor unit is operated by 2 remote controllers:

※

Either of the remotes can be set to main/sub.

Wireless Remote Controller

Wired Remote Controller

Receiver

(Sold Separately)

Remote Control Wiring (Field Supply)

Indoor Unit

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Use wiring of AWG#20 – AWG#14 for ﬁ eld supply.

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Use a total wire length of no more than 1300 ft.

※

(Main)

※

(Sub)

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If a group of units are to be controlled by 2 remote controllers;

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Main/sub remote controllers will work regardless of which indoor unit they are installed to.

Wireless Remote Controller

Wired Remote Controller

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Use wiring of AWG#20 – AWG#14 for ﬁ eld supply.

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Make the total wire length when crosswiring a group no more than 650 ft.

1st Indoor Unit

2nd Indoor Unit

3rd Indoor Unit

4th Indoor Unit

※

(Main)

※

(Sub)

Cross-wiring Remotes for Group Control (Field Supply)

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S003

Bit 3: OFF→ON

Screw

Cable clamp

PCB Cover

Receiver PCB

Adjustable Corner Cap

CZ-RWSU1U

Installing the Receiver

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The receiver can only be installed on the corner indicated in Fig. A, so consider how the panel will face when it is

installed on the indoor unit.

1 Remove the air inlet grill. 2 Remove the screw holding the adjustable corner cap, slide the cap to the side and remove it. (Fig. B)

No. Accessories Quantity

Receiver 1

Remote Controller 1

Remote Control Holder 1

No. Accessories Quantity

Dry-cell Batteries 2

Operating Instructions 1

Truss Self-Tapping Screws 2

Cable clamp 1

Clamp ﬁ xing screw 1

Fig. A Fig. B

3 A packing is stuffed into the square hole through which the panel wiring passes; temporarily remove the sponge

packingand pass the wire sticking out from the wireless receiver through the grill. Hold the wire in place with the enclosed clamp by tightening the screw, then stuff the sponge back in place. (Fig. C)

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If this packing is not put back, condensation may form on the wire, so it is absolutely necessary to put the sponge

packing back in place before continuing with the installation.

4 After wiring according to the directions in Wiring the Receiver Unit below, leave enough wiring so the receiver’s

adjustable corner cap can be removed and fasten the cable clamp with its screw. (Fig. C)

5 Install the panel on the receiver. When doing so, slide the panel so its tabs ﬁ t into their 3 places. Also, take care so

the wire does not get pinched. (Fig. D)

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Refer to the Operating Instructions packed with the panel.

<Note 1> If the wiring for the receiver is bundled with other wires, such as the incoming line, it may cause a

malfunction, so avoid putting them together.

<Note 2> 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 ﬁ lter.

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For more information about wiring or test operation, refer to Wiring the Receiver and Test Run.

Box with Indoor Unit’s Electrical Parts

Receiver installation Location

Adjustable Corner Cap

Ceiling Panel

Adjustable Corner Cap

Fig. C

Remove the sponge packing, fasten the wire with the cable clamp and put the sponge packing back in place.

Screw

Accessories

Fig. D

Wiring the Receiver

Wiring Diagram

Connections

・

Connect the wires from the receiver to the remote control terminal strip on the indoor unit. (Polarity does not

matter.)

Test Operation

Implementing a Test Run

1. Turn the #1 DIP switch [S003] on the receiver’s PCB from OFF to ON 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 turn the #1 DIP switch from ON to OFF and make sure none of the display lamps are blinking. Also, replace the PCB cover back as it was and fasten it; while holding the wiring with the cable clamp, tighten its screw.

<Note 1> This is hard on the device, so only use this for

the test run.

<Note 2> 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.)

Setting Address Switches

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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.

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Refer to the Operating Instructions for information on how to change the addresses of the remote controllers.

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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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S003

Bit 1: OFF→ON

Cable clamp

Screw

PCB Cover

Receiver PCB

Adjustable Corner Cap

Receiver PCB

Address Display on the Remote Controller

・・・・・・・・・・

Position of the Receiver’s Address Switch

It doesn’t matter where the receiver’s address switch is.

・・・・・・・・・・

Indoor Unit

Terminal Strip for Wiring Remote Controllers

White Black

INSTALLATION INSTRUCTIONS

Model No. CZ-RWSU1U

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PanasonicCZ-RWSU1U.indd1PanasonicCZ-RWSU1U.indd1 2012/01/2014:11:132012/01/2014:11:13

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.

●

: Off / ○: On / ◎: Blinking (0.5 sec. intervals)

Common to All Models

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The indoor unit and the wireless remote controller are equipped with

indoor temperature sensors. The sensing of indoor temperature works via one of them.

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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.

<Note> 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 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

Inconsistency in Air/Heat (Including an auto-temp setting for a model without auto-temp settings)

○◎◎

Alternately

Oil Alarm (Same as operation of outdoor protection device)

◎●◎

Alternately

Test Run

◎◎◎

Simultaneously

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.)

<Note> 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 ﬂ 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 reﬂ 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

Operation Mode

Flap Display

Select Fan Speed

Display of Set Temperature

°F

Setting Off (Note 2) °C °F

Time Display AM/PM

24 Hour (No Display) AM/PM

Ventilation Fan ON/OFF Off (No Display)

On OFF

(Note 3)

Cool temp Max 41 – 95°F 86°F

Cool temp Min 41 – 95°F 64°F

Heat temp Max 41 – 95°F 78°F

(Note 4)

Heat temp Min 41 – 95°F 60°F

Dry temp Max 41 – 95°F 86°F

Dry temp Min 41 – 95°F 64°F

Auto temp Max 41 – 95°F 80°F

Auto temp Min 41 – 95°F 62°F

Address Setting Max Value

00 (ALL only)

01 – 31 06 (Note 5)

Heat temp Max ON/OFF JP (Heater Max Temp Change Off)

EP (On)

(Note 1)

(No Display)

Item Number

Printed in Japan

85464369520011

PanasonicCZ-RWSU1U.indd2PanasonicCZ-RWSU1U.indd2 2012/01/2014:11:142012/01/2014:11:14