Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 166

1-158

1. Specifications

<Procedure of CZ-RTC3 /CZ-RTC5>

Stop the system before performing these steps.

1

Keep pressing the

,

and

buttons

simultaneously for 4 or more seconds.

The “Maintenance func” screen appears on the LCD display.

2

Press the

or

button to see each menu.

If you wish to see the next screen instantly, press the

or

button.

Select “8. Detailed settings” on the LCD display and press

the

button.

The “Detailed settings” screen appears on the LCD display.

3

Select the “Unit no.” by pressing the

or

button

for changes.

4

Select the “Code no.” by pressing the

or

button.

Change the “Code no.” to “5D” by pressing the

or

button (or keeping it pressed).

5

Select the “Set data” by pressing the

or

button.

Select one of the “Set data” in “Table for DC Fan

Motor Tap Setting” by pressing the

or

button.

Then press the

button.

6

Press the

button.

The “Exit detailed settings and restart?” (Detailed setting-

end) screen appears on the LCD display.

Select “YES” and press the

button.

*If air-blocking material is used, use same procedure as

in steps

3

~

6

above and change the setting for Code

no.“62” to “0000”.

If you wish to change the selected indoor unit, follow the step

2

.

<Procedure of CZ-RTC4>

Stop the system before performing these steps.

1

Press and hold the

,

and

buttons

simultaneously for 4 seconds or longer.

2

If group control is in effect, press the

button to set. At

this time, the fan at the indoor unit begins and select the

address (unit No.) of the indoor unit operating.

3

Designate the item code

by adjusting the Temperature

Setting

/

buttons.

4

Press the timer time

/

buttons to select the desired

setting data.

*For item codes and setting data, refer to “Table for DC Fan

Motor Tap Setting ”.

5

Press the

button.

(The display stops blinking and remains lit, and setting is

completed.)

*

If air-blocking material is used, use the same procedure as in

steps

3

–

5

above and change the setting for item code “62”

to “0000”.

If you wish to change the selected indoor unit, follow the step

2

.

6

Press the

button to return to normal remote controller

display.

A

°

°

1

Section	Page
TECHNICAL DATA & SERVICE MANUAL	1
IMPORTANT!	2
Check of Density Limit	4
Contents	6
1. SPECIFICATIONS	9
1-1. Unit Specifications	10
1-2. Major Component Specifications	37
1-3. Other Component Specifications	61
1-4. Dimensional Data	64
1-5. Refrigerant Flow Diagram	78
1-6. Operating Range	79
1-7. Capacity Correction Graph According to Temperature Condition	80
1-8. Noise Criterion Curves	81
1-9. Increasing the Fan Speed	90
1-10. External Static Pressure Setting	91
1-11. Air Throw Distance Chart	97
1-12. ELECTRICAL WIRING	105
1-13. Installation Instructions	108
2. PROCESSES AND FUNCTIONS	207
2-1. Room Temperature Control	208
2-2. Cold Draft Prevention (Heating Cycle)	210
2-3. Automatic Fan Speed (Indoor Unit)	211
2-4. Control Functions	212
2-5. Outdoor Unit Control PCB	215
2-6. Outdoor Unit Control PCB (CR-CH4272R)	216
3. ELECTRICAL DATA	219
3-1. Indoor Units	220
3-2. Outdoor Units	232
4. SERVICE PROCEDURES	245
4-1. Meaning of Alarm Messages	246
4-2. Symptoms and Parts to Inspect	249
4-3. Details of Alarm Messages	252
4-4. Table of Thermistor Characteristics	260
5. OUTDOOR UNIT MAINTENANCE REMOTE CONTROL	261
In the case of CZ-RTC2	262
5-1. Overview	262
5-2. Functions	262
5-3. Normal Display Operations and Functions	263
5-4. Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures	266
5-5. Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit Alarm History	267
5-6. Setting Modes: Setting the Outdoor Unit EEPROM	267
In the case of CZ-RTC4	271
5-7. Overview	271
5-8. Functions	272
5-9. Normal Display Operations and Functions	273
5-10. Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures	278
5-11. Mounting the Outdoor Unit Alarm History :Display of Outdoor Unit Alarm History	280
5-12. Setting Modes : Setting the Outdoor Unit EEPROM	281
6. TEST RUN	285
6-1. Preparing for Test Run	286
6-2. Caution	287
6-3. Test Run Procedure	287
6-4. Items to Check Before the Test Run	288
6-5. Test Run Using the Remote Controller	288
6-6. Precautions	289
6-7. Table of Self-Diagnostic Functions and Corrections (Type F2, U2, T2, K2, U1, K1, T1 and F1)	290

Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 166

<Procedure of CZ-RTC3 /CZ-RTC5&gt, Stop the system before performing these steps.

Page 166 highlights