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OPERATION MANUAL
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
CS-XE15SKUA
A I R C O N D I T I O N E R
M O D E
A U T O
E C O N A V I
C O M F O R T
O FF/O N
O FF/O N
M O D E
R F P
TEMP
TEMP
POWERFUL/
A IR SW IN G
QUIET
FANSPEED
T I M E R
T I M E R
O N
O N
S E T
S E T
1
1
2
2
3
3
CANCEL
O F F
O F F
AC
RC
SET
CHECK
CHECK
CLOCK
RESET
WARNING
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
Order No: PAPAMY1608072AE
Air Conditioner
Indoor Unit
CU-XE15SKUA
© Panasonic Corporation 2016.
Outdoor Unit
Destination
U.S.A.
Canada
in the Schematic
!
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Table of Contents
Related Manuals for Panasonic CU-XE15SKUA
Summary of Contents for Panasonic CU-XE15SKUA
- Page 1 Do not modify the original design without permission of manufacturer. PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit. © Panasonic Corporation 2016.
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Page 2: Operation Control
12. Operation Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting. -
Page 3: Automatic Operation
12.1.5 Automatic Operation This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature. During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature. -
Page 4: Outdoor Fan Motor Operation
ii. Auto Fan Speed [Cooling, Dry] According to room temperature and setting temperature, indoor fan speed is determined automatically. When set temperature is not achieved, the indoor fan will operate according to pattern below. [1 pattern : 10 s] Speed Higher Medium Lower... -
Page 5: Airflow Direction
OD Pipe Temperature 78.8°F (26°C) 91.4°F (33°C) During above condition, when indoor heat exchanger temperature is below 41°F (5°C), the outdoor fan will stop according to outdoor piping temperature as following: Outdoor fan ON 86°F (30°C) Outdoor fan OFF OD Pipe Temp. 12.4 Airflow Direction There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes). -
Page 6: Horizontal Airflow
12.4.2 Horizontal Airflow Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below. It does not swing during fan motor stop. Operation Mode Vane Angle (°) 65 ~115... -
Page 7: Powerful Mode Operation
Quiet operation stop condition When one of the following conditions is satisfied, quiet operation stops: POWERFUL/QUIET button is pressed again. Stop by OFF/ON switch. Timer “off” activates. AUTO COMFORT button is pressed. ECONAVI button is pressed. When quiet operation is stopped, operation is shifted to normal operation with previous setting. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. -
Page 8: Indication Panel
12.10 Indication Panel POWER TIMER POWERFUL/QUIET ECONAVI AUTO COMFORT Color Green Orange Orange Green Green Green POWERFUL/QUIET AUTO COMFORT Light ON Operation ON Timer Setting ON RFP ON ECONAVI ON Mode ON POWERFUL/QUIET AUTO COMFORT Light OFF Operation OFF Timer Setting OFF RFP OFF ECONAVI OFF Mode OFF... -
Page 9: Signal Detection
12.12.1 Human Activity Sensor Area of human availability, activity level and absent is judged based on pulses by using infrared sensor. The internal setting temperature shift, fan speed and horizontal airflow direction are adjusted in order to provide comfort environment while maintain the energy saving level. Human activity judgment is as following: Signal Detection Information Log... - Page 10 12.12.1.4 Determination of Presence or Absence Human presence status shall be determined based on the human presence status of each area. When all area has been detected absent for more than 40 minutes then it will judge as absence. 12.12.1.5 Setting Temperature and Fan Speed Shift ECONAVI ;...
- Page 11 12.12.1.7 Human Activity Sensor Abnormality Abnormality detection: Connector disconnection / Wire cut abnormality o Sensor judge Hi level continuously for 25 seconds Circuit abnormality o 70 seconds after power ON, if human activity sensor judge Lo level continuously for 25 seconds Error Code judgment When abnormality happened, internal counter increase by 1 time.
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Page 12: Electric Heater Control
12.13 Electric Heater Control 1 Starting condition When all condition (1+2+3+4+5+6+7) are fulfilled. Operation ON Indoor Heating mode Thermostat ON Temperature different control °F (°C) Temp difference (Remote controller setting - When air conditioning is Intake air temperature) switched ON Heater ON ON by 7.2 (4) - Page 13 12.14 Electric Heater Control 2 During Error happened, air conditioning unit will stop operation, TIMER LED will blink and indoor vane closed. Electric heater can be switch ON when fullfill the starting condition as follow except 2 errors. H14 (Indoor intake air temperature sensor abnormality) H19 (Indoor fan motor mechanism lock) Starting condition When all condition (1+2+3+4) are fulfilled.
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Page 14: Protection Control For All Operations
13. Protection Control 13.1 Protection Control For All Operations 13.1.1 Restart Control (Time Delay Safety Control) The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. This control is not applicable if the power supply is cut off and on again. -
Page 15: Compressor Overheating Prevention Control
13.1.4 Compressor Overheating Prevention Control Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. If compressor discharge temperature exceeds 224.6°F (107°C), compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking. (“F97” is indicated.) Compressor = OFF 224.6°F (107°C) 197.6°F (92°C) -
Page 16: Protection Control For Cooling & Soft Dry Operation
13.2 Protection Control For Cooling & Soft Dry Operation 13.2.1 Outdoor Air Temperature Control The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. This control will begin 1 minute after the compressor starts. Compressor frequency will adjust base on outdoor air temperature. -
Page 17: Protection Control For Heating Operation
13.2.5 Dew Prevention Control 1 To prevent dew formation at indoor unit discharge area. This control will be activated if: Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. When Cooling or Dry mode is operated more than 20 minutes or more. This control stopped if: Compressor stopped. -
Page 18: Deice Operation
13.3.5 Cold Draught Prevention Control When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced. 13.3.6 Deice Operation When outdoor pipe temperature and outdoor air temperature is low, deice operation start where indoor fan motor and outdoor fan motor stop and operation LED blinks. -
Page 19: Servicing Mode
14. Servicing Mode 14.1 Auto OFF/ON Button Auto OFF/ON Auto OFF/ON Auto OFF/ON Auto OFF/ON Button pressed Button pressed Button pressed Button pressed 5 sec 5 sec 5 sec Auto Operation Test Run Operation Stop Normal Cooling Operation Stop Test Run Operation Stop (Forced cooling operation) (Forced heating operation) -
Page 20: Cooling Only Operation
REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”... -
Page 21: Remote Control Button
14.3 Remote Control Button 14.3.1 SET Button To check remote control transmission code and store the transmission code to EEPROM: Press “Set” button by using pointer. Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code changed. To limit set temperature range for COOL &...