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INSTALLATION MANUAL
URBAN MULTI AIR CONDITIONER
U-5MX3XPQ
U-8MX3XPQ(A)
U-10MX3XPQ(A)
U-12MX3XPQ(A)
U-14MX3XPQ(A)
U-16MX3XPQ(A)
U-18MX3XPQ
U-20MX3XPQ
U-22MX3XPQ
U-24MX3XPQ
U-26MX3XPQ
U-28MX3XPQ
U-30MX3XPQ
U-32MX3XPQ
U-34MX3XPQ
U-36MX3XPQ
U-38MX3XPQ
U-40MX3XPQ
U-42MX3XPQ
U-44MX3XPQ
U-46MX3XPQ
U-48MX3XPQ
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Summary of Contents for Panasonic U-5MX3XPQ
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Page 1: Installation Manual
INSTALLATION MANUAL URBAN MULTI AIR CONDITIONER U-5MX3XPQ U-8MX3XPQ(A) U-10MX3XPQ(A) U-12MX3XPQ(A) U-14MX3XPQ(A) U-16MX3XPQ(A) U-18MX3XPQ U-20MX3XPQ U-22MX3XPQ U-24MX3XPQ U-26MX3XPQ U-28MX3XPQ U-30MX3XPQ U-32MX3XPQ U-34MX3XPQ U-36MX3XPQ U-38MX3XPQ U-40MX3XPQ U-42MX3XPQ U-44MX3XPQ U-46MX3XPQ U-48MX3XPQ... - Page 2 U-5MX3 U-8+10MX3 U-12~16MX3 (mm) U-5~16MX3 U-18~48MX3...
- Page 3 U-5~16MX3 U-18~48MX3 A B C F1 F1 F2 F2 Q1 Q2 F2 Q1 Q2 A B C F A B C C/H SELECTOR TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F1 F2 F1 F2 F1 F2 A B C F1 F2 F1 F2 Q1 Q2 Q1 Q2 Q1 Q2 F1 F2...
- Page 4 TO IN/D UNIT A B C F1 F2 F1 F2 F1 F2 A B C 3 5 7 U-5~10MX3 U-12~16MX3 1 10 U-5~10MX3 U-12~16MX3...
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Page 5: Table Of Contents
2. Main components ................2 NTRODUCTION 3. Selection of location............... 2 This installation manual concerns Urban Multi units of the Panasonic 4. Inspecting and handling the unit ............ 3 MX3 series. These units are designed for outdoor installation and used for cooling and heatpump applications. The MX3 series can be 5. -
Page 6: Standard Supplied Accessories
1.2. Standard supplied accessories 2. M AIN COMPONENTS U-5MX3 U-8~16MX3 For main components and function of the main components, refer to Gas line piping (1) — the Engineering Data Book. Gas line piping (2) — 3. S ELECTION OF LOCATION Gas line piping (3) —... -
Page 7: Inspecting And Handling The Unit
Bring the unit as close to its final installation position in its The equipment described in this manual may cause original package to prevent damage during transport. (See electronic noise generated from radio-frequency figure 3) energy. The equipment complies to specifications that are designed to provide reasonable protection against Packaging material such interference. -
Page 8: Refrigerant Piping
6. R Make sure to use the particular branches of piping that have been EFRIGERANT PIPING selected referring to chapter "6.3. Example of connection" on page In case the required pipe sizes (inch sizes) are not available, it is also Use R-410A to add refrigerant. - Page 9 Precautions when selecting branch piping. Be sure to use the supplied accessory pipes when carrying out piping work in the field. If the overall equivalent piping length is ≥90 m, be sure to enlarge the Be sure that the field installed piping does not touch pipe diameter of the liquid-side and gas-side main piping.
- Page 10 To avoid the risk of oil retention to the stopping unit side, always If the piping length between the outdoor unit-connecting pipe kits or connect the stop valve and the piping between outdoor units as between the outdoor units exceeds 2 m, create a rise of 200 mm or shown in the figure A or figure B.
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Page 11: Example Of Connection
6.3. Example of connection U-5~48MX3 Installation manual Urban Multi air conditioner 4PW16235-1C... - Page 12 Installation manual U-5~48MX3 Urban Multi air conditioner 4PW16235-1C...
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Page 13: Leak Test And Vacuum Drying
6.4. Leak test and vacuum drying Opening stop valve Remove the cap and turn the valve counterclockwise with the The units were checked for leaks by the manufacturer. hexagon wrench. Confirm that the valves are firmly closed before pressure test or Turn it until the shaft stops. -
Page 14: Pipe Insulation
6.6. Additional refrigerant charge NOTE You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may follow Refrigerant cannot be charged until field wiring has been the installation method mentioned below. completed. -
Page 15: Field Wiring
7. F IELD WIRING NOTE Procedures for charging additional refrigerant U-5~16MX3 One outdoor unit installed (See figure 9) All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations. Presssure reducing valve Nitrogen The field wiring must be carried out in accordance with the wiring diagrams and the instructions given below. -
Page 16: Optional Parts Cool/Heat Selector
7.2. Optional parts cool/heat selector S1NPL....Pressure sensor (low) S1PH,3PH....Pressure switch (high) S1S......Selector switch (fan, cool/heat) T1A......Current sensor (A5P,A6P) S2S......Selector switch (cool/heat) T1R ......Transformer NOTE Use copper conductors only. V1CP......Safety devices input When using the adaptor for sequential start, refer V1R ......Power module (A2P,A3P) "7.5. -
Page 17: General
7.4. General Field line connection Up to 3 units can be connected by crossover power source L1, L2, L3, N-phase of the power cord should be clamped to the wiring between outdoor units. However, units of smaller capacity plastic bracket using field supplied clamp material. must be connected downstream. - Page 18 In case of U-18~48MX3 (See figure 15) 〉 〈Precautions when laying power wiring Use round pressure terminals for connections to the power Unit A (Base unit) terminal block. Unit B When none are available, follow the instructions below. Unit C Do not connect wiring of different thicknesses to the To cooler/heater selector power terminal block.
- Page 19 Never connect 400 V to the terminal block of the interconnecting Picking power line and transmission line wiring. Doing so will break the entire system. Be sure to let the power line and the transmission line pass The wiring from the indoor units must be connected to the F1/F2 through a conduit hole.
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Page 20: Before Operation
8. B During the operation, monitor the outdoor unit operation status EFORE OPERATION and check for any incorrect wiring. (See figure 19) Turn ON the power to the outdoor units Make sure to turn ON the power 6 8.1. Checks before initial start-up and indoor units. -
Page 21: Caution For Refrigerant Leaks
9. C Remote controller displays an error: AUTION FOR REFRIGERANT LEAKS Malfunction (Points to note in connection with refrigerant leaks.) Installation error code Remedial action The stop valve of Check referring to the table in an outdoor unit "6.6. Additional refrigerant charge" Introduction is left closed. - Page 22 Procedure for checking maximum concentration OTES Check the maximum concentration level in accordance with steps 1 to 4 below and take whatever action is necessary to comply. Calculate the amount of refrigerant (kg) charged to each system separately. amount of additional charging total amount of refrigerant in a...
- Page 23 NOTES NOTES...
- Page 24 4PWEN16235-1C...
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