Panasonic S-22MU1E5A Service Manual
Vrf systems indoor unit
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Also See for S-22MU1E5A:
- Technical data manual (361 pages) ,
- Operating instructions manual (108 pages) ,
- Installation instructions manual (27 pages)
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SERVICE MANUAL & TEST RUN SERVICE MANUAL
4-Way Cassette
(U1 type)
Indoor Unit
Class
15
22
4-Way Cassette
S-22MU1E5A
U1
4-Way Cassette
Y2
S-15MY2E5A
S-22MY2E5A
60×60
Low Silhouette
S-15MF2E5A
S-22MF2E5A
F2
Ducted
Ceiling
T2
Wall Mounted
S-15MK2E5A
S-22MK2E5A
K2
Wall Mounted
K1
85464849332000
VRF SYSTEMS INDOOR UNIT
28
36
S-28MU1E5A
S-36MU1E5A
S-45MU1E5A
S-28MY2E5A
S-36MY2E5A
S-45MY2E5A
S-28MF2E5A
S-36MF2E5A
S-45MF2E5A
S-36MT2E5A
S-45MT2E5A
S-28MK2E5A
S-36MK2E5A
S-45MK1E5A
Ceiling
(T2 type)
45
56
60
S-56MU1E5A
S-60MU1E5A
S-73MU1E5A
S-56MY2E5A
S-56MF2E5A
S-60MF2E5A
S-73MF2E5A
S-56MT2E5A
S-73MT2E5A
S-56MK1E5A
S-73MK1E5A
Order No. SBPAC1404002CE
Low Silhouette Ducted
(F2 type)
73
90
106
S-90MU1E5A
S-106MU1E5A
S-140MU1E5A
S-90MF2E5A
S-106MF2E5A
S-140MF2E5A
S-106MT2E5A
S-140MT2E5A
S-106MK1E5A
SM830232-00
REFERENCE NO.
140
160
S-160MU1E5A
S-160MF2E5A
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Table of Contents
Related Manuals for Panasonic S-22MU1E5A
Summary of Contents for Panasonic S-22MU1E5A
- Page 1 SERVICE MANUAL & TEST RUN SERVICE MANUAL VRF SYSTEMS INDOOR UNIT 4-Way Cassette Ceiling Low Silhouette Ducted (U1 type) (T2 type) (F2 type) Indoor Unit Class 4-Way Cassette S-22MU1E5A S-28MU1E5A S-36MU1E5A S-45MU1E5A S-56MU1E5A S-60MU1E5A S-73MU1E5A S-90MU1E5A S-106MU1E5A S-140MU1E5A S-160MU1E5A 4-Way Cassette...
- Page 2 ● Connectable outdoor unit lineup This document is the Service Manual of the indoor unit. For outdoor unit, refer to the Service Manual of the outdoor unit. ■ For Europe Type Outdoor Unit Type 4 hp 5 hp 6 hp 8 hp 10 hp 2WAY VRF System...
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Page 3: Special Precautions
IMPORTANT! • Provide a power outlet to be used exclusively for each unit. Please Read Before Starting • Provide a power outlet exclusively for This air conditioner must be installed by the sales dealer each unit, and full disconnection means or installer. - Page 4 When Connecting Refrigerant Tubing • This product must not be modified or disassembled WARNING • When performing piping under any circumstances. work do not mix air except Modified or disassembled for specified refrigerant unit may cause fire, electric shock or injury. (R410A) in refrigeration cycle.
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Page 5: Table Of Contents
— CONTENTS — Section 1: CONTROL FUNCTIONS-Outdoor Unit ......1-1 * Refer to the Service Manual of Outdoor Unit. Section 2: CONTROL FUNCTIONS-Indoor Unit . -
Page 6: Control Functions-Outdoor Unit
VRF SYSTEMS Indoor Unit 1. CONTROL FUNCTIONS-Outdoor Unit * Refer to the Service Manual of Outdoor Unit. 1 - 1... - Page 7 – MEMO – 1 - 2...
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Page 8: Control Functions-Indoor Unit
VRF SYSTEMS Indoor Unit Contents 2. CONTROL FUNCTIONS-Indoor Unit 1. Room Temperature Control ..........2-2 2. -
Page 9: Room Temperature Control
VRF SYSTEMS Indoor Unit 1. Room Temperature Control 1. Room Temperature Control The body sensor or remote controller sensor detects temperature in the room. The detected temperature is called the room temperature. The body sensor is the one contained in the indoor unit. Body sensor is enabled Remote controller sensor is enabled Set temp. - Page 10 VRF SYSTEMS Indoor Unit 1. Room Temperature Control Remote controller sensor is enabled Remote controller sensor is enabled Set temp. in remote Set temp. in remote 28℃ 28℃ 28℃ 20℃ 20℃ 20℃ controller controller Detected temp. by Detected temp. by 30.0℃...
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Page 11: Heating Standby
VRF SYSTEMS Indoor Unit 2. Heating Standby 2. Heating Standby In heating mode, the indoor fan speed decreases to prevent cold air discharge from the indoor unit. During this time, (heating standby) is displayed on the remote controller. ① This condition occurs in the following cases. ・... -
Page 12: Automatic Fan Speed Control
VRF SYSTEMS Indoor Unit 3. Automatic Fan Speed Control 3. Automatic Fan Speed Control ① The indoor fan mode is controlled as shown below during the automatic fan mode. ② The fan mode does not change for 3 minutes during cooling operation and 1 minute during heating operation once it is changed. -
Page 13: Indoor Unit Mov Control
4. Indoor Unit MOV Control VRF SYSTEMS Indoor Unit 5. Drain Pump Control 4. Indoor Unit MOV Control For details, refer to the Service Manual of Outdoor Unit. The MOV is at 480 pulses in the following cases. ① At the time of factory shipment ②... -
Page 14: Automatic Heating/Cooling Control
VRF SYSTEMS Indoor Unit 6. Automatic Heating/Cooling Control 6. Automatic Heating/Cooling Control This function is only valid as long as one indoor unit is installed within one refrigerant system or all indoor units are controlled within a group control. When operating in a group control, the sub-indoor units become the same operation mode of the main unit. As for the indoor units in a group control, install them in the same air conditioning circumstances. -
Page 15: Discharge Air Temperature Control
7. Discharge Air Temperature Control VRF SYSTEMS Indoor Unit 8. RAP Valve Kit Control 7. Discharge Air Temperature Control Discharge air temperature is controlled using the indoor unit discharge air temperature sensor. The discharge air temperature is set in the EEPROM on the PCB. The setting is different depending on the model. Refer to “15. -
Page 16: Automatic Flap Control
9. Automatic Flap Control VRF SYSTEMS Indoor Unit 10. Filter Sign 9. Automatic Flap Control The flap position can be selected from 5 positions. Operating mode Flap position Cooling/Dry F1・F2・F3 F1・F2・F3・F4・F5 Heating F1・F2・F3・F4・F5 ① The fl ap moves to the following position automatically when the indoor unit is stopped. F0 (close): Types K1, K2, T2, U1, Y2 F5: Models other than the above ②... -
Page 17: Electric Heater Control
11. Electric Heater Control VRF SYSTEMS Indoor Unit 12. Fan Control during Dry Mode 11. Electric Heater Control The electric heater control is performed when an electric heater is installed with the indoor unit. The heater turns ON when all of the following conditions (1 to 3) are satisfi ed in heating mode (thermostat ON). ①... -
Page 18: Ventilation Fan Output
13. Ventilation Fan Output VRF SYSTEMS Indoor Unit 14. T10 Terminal 13. Ventilation Fan Output The output of ventilation turns ON when the indoor unit turns ON. Also, when the indoor unit turns OFF, the output of the ventilation turns OFF. The ventilation fan can also be turned ON and OFF using the ventilation button on the remote controller. -
Page 19: Parameter
VRF SYSTEMS Indoor Unit 15. Parameter 15. Parameter Heat/cool switching Correction temp. (heating) correction temp. (automatic heat/cool) Type Model Setting at time of factory Setting at time of factory shipment shipment 4-Way Cassette 4 deg 2 deg 4-Way Cassette 60×60 4 deg 2 deg Low Silhouette Ducted... -
Page 20: Outdoor Unit Repair Procedures
VRF SYSTEMS Indoor Unit 3. OUTDOOR UNIT REPAIR PROCEDURES * Refer to the Service Manual of Outdoor Unit. 3 - 1... - Page 21 – MEMO – 3 - 2...
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Page 22: Outdoor Unit Maintenance Remote Controller
VRF SYSTEMS Indoor Unit 4. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER * Refer to the Service Manual of Outdoor Unit. 4 - 1... - Page 23 – MEMO – 4 - 2...
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Page 24: Remote Controller Functions
VRF SYSTEMS Indoor Unit 5. REMOTE CONTROLLER FUNCTIONS 1. Simple Settings Function ..........5-2 2. -
Page 25: Simple Settings Function
VRF SYSTEMS Indoor Unit 1. Simple Settings Function • This allows the filter lifetime, operating mode priority change, central control address, and other settings to be made for an individual or group- control indoor unit to which the remote controller used for simple settings is connected. - Page 26 VRF SYSTEMS Indoor Unit 1. Simple Settings Function <Procedure of CZ-RTC3> CZ-RTC3 Fig. 2 Select the “Code no.” by pressing the button. Keep pressing the Change the “Code no.” by pressing the buttons simultaneously for 4 or more seconds. button. The “Maintenance func”...
- Page 27 VRF SYSTEMS Indoor Unit 1. Simple Settings Function List of Simple Setting Items Setting data Item code Item Description 0000 Not displayed 0001 150 hours 0002 2,500 hours Filter sign ON time (fi lter life time) 0003 5,000 hours 0004 10,000 hours 0005 Use the fi...
- Page 28 VRF SYSTEMS Indoor Unit 1. Simple Settings Function Simple setting items Item code Item Description Filter sign ON time setting Changes the indoor unit fi lter lifetime when a high-performance fi lter or other (fi lter lifetime) optional product is installed. Reduces the fi...
- Page 29 VRF SYSTEMS Indoor Unit 1. Simple Settings Function Item code Item Description Set when using a central control device. Central control address Used when setting the central control address manually from the remote controller. Operating mode priority change Note (1) NOTE (1) Explanation of operation mode priority change Enabled only in 2WAY System heat-pump models.
- Page 30 VRF SYSTEMS Indoor Unit 1. Simple Settings Function When the operating mode at the priority remote controller is changed, the operating modes of other remote controllers change as shown below. Mode change at priority remote controller Operating modes at other remote controllers Current mode New mode Current mode...
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Page 31: Detailed Settings Function
VRF SYSTEMS Indoor Unit 2. Detailed Settings Function • This allows the system address, indoor unit address, and other settings to be made for the individual or group-control indoor unit to which the remote controller used for detailed settings is connected. - Page 32 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function <Procedure of CZ-RTC3> CZ-RTC3 Fig. 4 Select the “Code no.” by pressing the Keep pressing the button. buttons simultaneously for 4 or more seconds. Change the “Code no.” by pressing the The “Maintenance func” screen appears on the button (or keeping it pressed).
- Page 33 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function Setting the Flap Separately (When setting the CZ-RTC2) Press the timer time buttons to select 1) The 4-air outlet flap can be adjusted separately during the desired setting data. operation. When not adjusted separately, all flaps operate Flap position in the same manner.
- Page 34 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function When setting the flap for each air outlet individually according to the room condition. (from Operating Instructions) <Procedure of CZ-RTC3> Display the menu screen. Select the flap direction. (Press 2 times to finish.) To return to the previous screen Press Although...
- Page 35 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function List of Detailed Setting Items Setting data Item code Item Description Description Description 0001 4-Way Cassette (60×60) (U1, Y2) 0002 2-Way Cassette (L1) 0003 1-Way Cassette (D1) Low Silhouette Ducted (F2) High Static Pressure Ceiling (T2) 0005 0006...
- Page 36 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function Setting data Item code Item Description 0000 5 minutes (1B) Forced thermostat ON time 0001 4 minutes –010 –10°C –009 –9°C Cooling discharge –008 –8°C temperature shift 0010 10°C –010 –10°C –009 –9°C Heating discharge –008...
- Page 37 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function Setting data Item code Item Description 0000 No forced operation 0001 Forced operation for 1 minute Automatic drain pump operation 0060 Continuous operation 0000 None Ventilation fan operation 0001 Ventilation fan operated by remote controller. 0000 Not used.
- Page 38 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function Setting data Item code Item Description DC fan tap operating Purpose mode 0000 Standard Standard (setting at shipment) High ceiling use High ceiling setting 1 (with standard panel) 0001 For low Ultra long-life fi lter, oil guard panel, ammonia deodorizing Fan tap setting static-pressure fi...
- Page 39 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function Item code Item Description Unit type Set when the indoor unit EEPROM memory is replaced during servicing. Indoor unit capacity System (outdoor unit) address These are not set at the time of shipping from the factory. These must be set after installation if automatic address setting is not Indoor unit address performed.
- Page 40 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function Item code Item Description 1F (Upper limit) Cooling 20 (Lower limit) 21 (Upper limit) This setting changes the temperature range (upper limit and lower limit) Heating 22 (Lower limit) Change to the remote which is set from the remote controller or central control device.
- Page 41 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function (Continued from previous page) Item code Item Description Heat exchanger temperature for The heat exchanger temperature control point for prevention of cold air cold air discharge discharge during heating operation can be changed. The indoor unit PCB optional output for the fan can be switched Fan output switching according to the purpose of use.
- Page 42 VRF SYSTEMS Indoor Unit 2. Detailed Settings Function 2. Detailed Settings Function Selecting the DC fan motor tap (when setting from the PCB) 4-Way Cassette type <Procedure> Stop the system before performing these steps. Open the electrical component box cover, then check the indoor unit control PCB. Connect the jumper connector (2P: yellow) which was supplied with the accessory to the correct connector pin on the indoor unit control PCB according to the setting number which was confirmed in Table for DC Fan Motor Tap Settings.
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Page 43: Remote Controller Servicing Functions
VRF SYSTEMS Indoor Unit 3. Remote Controller Servicing Functions The remote controller includes a number of servicing functions. Use these as needed for test runs and inspections. ■ Timer Remote Controller CZ-RTC2 CZ-RTC2 Fig. 8 List of Servicing Functions Functions Description Button operation Reset operation... - Page 44 VRF SYSTEMS Indoor Unit 3. Remote Controller Servicing Functions ■ High-spec Wired Remote Controller CZ-RTC3 Display of "maintenance function" screen Keep pressing the buttons simultaneously for 4 or more seconds. Maintenance func 20:30 (THU) The “Maintenance func” screen appears on the 1.
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Page 45: Test Run Function
VRF SYSTEMS Indoor Unit 3. Remote Controller Servicing Functions Test Run Function Operates the unit with the thermostat forced ON. <Procedure of CZ-RTC2> Press and hold the button for 4 seconds or longer. “TEST” appears on the remote controller LCD display (Fig. - Page 46 VRF SYSTEMS Indoor Unit 3. Remote Controller Servicing Functions Sensor Temperature Display Function (displayed regardless of whether unit is operating or stopped) The procedure below displays the sensor temperatures from the remote controller, indoor unit, and outdoor unit on the remote controller. <Procedure to CZ-RTC2>...
- Page 47 VRF SYSTEMS Indoor Unit 3. Remote Controller Servicing Functions <Procedure of CZ-RTC3> Keep pressing the buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the LCD display. Maintenance func 20:30 (THU) 1. Outdoor unit error data 2.
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Page 48: Trouble Diagnosis
VRF SYSTEMS Indoor Unit 6. TROUBLE DIAGNOSIS * Refer to the Service Manual of Outdoor Unit However, Refer to page 5-24 operations in the high-spec wired remote controller (CZ-RTC3) of "Sensor temperature display function". 6 - 1... - Page 49 – MEMO – 6 - 2...
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Page 50: Test Run From The Remote Controller (Cz-Rtc3)
VRF SYSTEMS Indoor Unit VRF SYSTEMS Indoor Unit 7. TEST RUN from the remote controller (CZ-RTC3) 1. Test Run ............. . 7-2 2. -
Page 51: Test Run
VRF SYSTEMS Indoor Unit VRF SYSTEMS Indoor Unit 1. Test Run Regarding the detailed settings for the test run, refer to the service manual for each outdoor unit. If operating the high-spec wired remote controller (CZ-RTC3) is necessary, follow the procedure described below. -
Page 52: Auto Address Setting
VRF SYSTEMS Indoor Unit VRF SYSTEMS Indoor Unit VRF SYSTEMS Indoor Unit VRF SYSTEMS Indoor Unit 2.Auto address setting 7-2. Auto address setting <Procedure of CZ-RTC3> Keep pressing the buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the LCD display. - Page 53 201404...