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Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 209

Processes and functions, B Heating

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2. Processes and functions (B) Heating REMOTE CONTROL SENSOR (Only for wireless remote controller) SET. +2 °F SETTING TEMP. SET. -2 °F THERMO. ON THERMO. ON THERMO. OFF THERMO. OFF THERMO. ON BODY SENSOR +2°F SET TEMP.+7 °F SHIFT -2°F THERMO. ON THERMO. OFF THERMO. ON THERMO. OFF THERMO. ON SET TEMP. 5 MINUTES 3 MINUTES MORE THAN 5 MINUTES MORE THAN 3 MINUTES COMPRESSOR OFF ON OFF ON OFF ON 1 OUTDOOR FAN OFF ON (H OR M) OFF ON OFF ON 3 SECONDS 2 INDOOR FAN OFF L LL L SET SPEED LL SET SPEED LL SET SPEED 2 2 STANDBY OFF ON OFF ON OFF ON OFF (88°F) INDOOR HEAT EXCH. COIL TEMP. E2 81°F 77°F SOLENOID COIL (4-WAY) TEMP. ON (REVERSING CYCLE) OPERATION OFF ON BUTTON 1. See Outdoor unit fan control in 2-4. Control Functions. 2. See 2-2 Cold Draft Prevention (Heating Cycle) Chart Summary and Explanations 1134_THS_I Fig. 2 Once the compressor starts, it keeps running for 5 minutes. Once the compressor stops, it will not start running again for 3 minutes. If you change the operation mode (HEAT, COOL or FAN) during the heating cycle, the control circuit stops the compressor for 3 minutes. For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off, the compressor is not controlled by the room sensor. When set on remote control sensor Thermo ON: When room temperature is -2˚F below the set temperature T˚. Compressor ON Thermo OFF: When the room temperature is 2˚F above the set temperature T˚, (T˚+2 ˚F) Compressor OFF When set on body sensor NOTE: In case of Body sensor, operating temperature is shifted to setting temperature +7˚F. 2-3

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

Match case Limit results 1 per page

2-3

2. Processes and functions

Fig. 2

THERMO.

THERMO. ON

+2°F

See Outdoor unit fan control in 2-4. Control Functions.

OFF

SET SPEED

ON (REVERSING CYCLE)

TEMP.

OPERATION

REMOTE CONTROL

SENSOR

(Only for wireless

remote controller)

BODY SENSOR

OFF

SET SPEED

3 SECONDS

OFF

MORE THAN

3 MINUTES

OFF

3 MINUTES

MORE THAN

5 MINUTES

THERMO. ON

THERMO.

See

2-2

Cold Draft Prevention (Heating Cycle)

BUTTON

COIL (4-WAY)

SOLENOID

TEMP.

COIL

EXCH.

INDOOR HEAT

STANDBY

INDOOR FAN

OUTDOOR FAN

(H OR M)

COMPRESSOR

SET. +2 °F

SET. –2 °F

–2°F

SET TEMP.+7 °F SHIFT

THERMO.

OFF

THERMO. OFF

OFF

(88°F)

81°F

77°F

1134_THS_I

THERMO.

OFF

THERMO. OFF

SETTING TEMP.

SET TEMP.

Chart Summary and Explanations

Once the compressor

starts

, it keeps running for 5 minutes.

Once the compressor

stops

, it will not start running again for 3 minutes.

If you change the operation mode (

HEAT

COOL

FAN

) during the heating cycle, the

control circuit

stops

the compressor for

3 minutes

For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off,

the compressor is not controlled by the room sensor.

When set on remote control sensor

Thermo ON:

When room temperature is –2˚F below the set temperature T˚.

Compressor

Thermo OFF:

When the room temperature is 2˚F above the set temperature T˚, (T˚+2 ˚F)

Compressor

OFF

When set on body sensor

NOTE:

In case of Body sensor, operating temperature is shifted to setting temperature +7

(B) Heating