Mitsubishi Electric CITY MULTI PURY-P-YNW-A2 Installation Manual
Mitsubishi Electric CITY MULTI PURY-P-YNW-A2 Installation Manual

Mitsubishi Electric CITY MULTI PURY-P-YNW-A2 Installation Manual

Air-conditioners for building application

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Air-Conditioners For Building Application
OUTDOOR UNIT
PURY-P-YNW-A2/TR2(-BS)
PURY-EP-YNW-A2/TR2(-BS)
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
For use with R410A
<ORIGINAL>

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Summary of Contents for Mitsubishi Electric CITY MULTI PURY-P-YNW-A2

  • Page 1 <ORIGINAL> Air-Conditioners For Building Application OUTDOOR UNIT PURY-P-YNW-A2/TR2(-BS) For use with R410A PURY-EP-YNW-A2/TR2(-BS) INSTALLATION MANUAL For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
  • Page 2: Table Of Contents

    CONTENTS 1. Safety precautions ················································································ 2 1-1. General precautions....................... 2 1-2. Precautions for transporting the unit ..................3 1-3. Precautions for unit installation ....................4 1-4. Precautions for piping work....................5 1-5. Precautions for electrical wiring ..................... 5 1-6. Precautions for relocating or repairing the unit ..............6 1-7.
  • Page 3: Safety Precautions

    - Operating the unit with a safety device whose settings have been changed may result in bursting, fire, or explosion. - Using safety devices other than those specified by Mitsubishi Electric may result in bursting, fire, or explosion. Do not alter or modify the unit.
  • Page 4: Precautions For Transporting The Unit

    Do not touch the refrigerant pipes and refrigerant line components with bare hands during and immediately after operation. - The refrigerant in the pipes will be very hot or very cold, resulting in frostbite or burns. Do not touch the electrical parts with bare hands during and immediately after operation. - Doing so may result in burns.
  • Page 5: Precautions For Unit Installation

    Observe the restrictions on the maximum weight that a person can lift, which is specified in local regulations. - Failure to do so may result in injury. 1-3. Precautions for unit installation Do not install the unit where combustible gas may leak. - If combustible gas accumulates around the unit, fire or explosion may result.
  • Page 6: Precautions For Piping Work

    1-4. Precautions for piping work Before heating the brazed sections, remove the gas and oil that are trapped in the pipes. - Failure to do so may generate fire, resulting in serious injury. Do not purge the air using refrigerant. Use a vacuum pump to evacuate the system. - Residual gas in the refrigerant lines will cause bursting of the pipes or an explosion.
  • Page 7: Precautions For Relocating Or Repairing The Unit

    After the wiring work has been completed, measure the insulation resistance, and make sure that it reads at least 1 MΩ. - Failure to do so may result in electric leakage, malfunction, or fire. 1-6. Precautions for relocating or repairing the unit Only qualified personnel must relocate or repair the unit.
  • Page 8 Drain piping must be installed by a dealer or qualified personnel to ensure proper drainage. - Improper drain piping may cause water leakage, resulting in damage to furniture and other surroundings. Take appropriate measures against electrical noise interference when installing the unit in hospitals or radio communication facilities.
  • Page 9 Do not use existing refrigerant piping. - The old refrigerant and refrigerant oil in the existing piping contain a large amount of chlorine, which will cause the refrigerant oil in the new unit to deteriorate and cause the compressor to malfunction.
  • Page 10: About The Product

    2. About the product ・The outdoor unit described in this manual is air-conditioning equipment that is designed only for human comfort. ・The numeric values in the unit model name (e.g., (E)P***YNW) indicate the capacity index of the unit. ・This unit uses R410A refrigerant. ・In this manual, the following terms are used, depending on the systems as shown in the table below.
  • Page 11: Combination Of Outdoor Units

    3. Combination of outdoor units (1) P models Outdoor unit model Combination of outdoor units PURY-P200YNW-A2/TR2(-BS) PURY-P250YNW-A2/TR2(-BS) PURY-P300YNW-A2/TR2(-BS) PURY-P350YNW-A2/TR2(-BS) PURY-P400YNW-A2/TR2(-BS) PURY-P400YSNW-A2/TR2(-BS) PURY-P200YNW-A2/TR2(-BS) PURY-P200YNW-A2/TR2(-BS) PURY-P450YNW-A2/TR2(-BS) PURY-P450YSNW-A2/TR2(-BS) PURY-P200YNW-A2/TR2(-BS) PURY-P250YNW-A2/TR2(-BS) PURY-P500YNW-A2/TR2(-BS) PURY-P500YSNW-A2/TR2(-BS) PURY-P250YNW-A2/TR2(-BS) PURY-P250YNW-A2/TR2(-BS) PURY-P550YNW-A2/TR2(-BS) * PURY-P550YSNW-A2/TR2(-BS) PURY-P250YNW-A2/TR2(-BS) PURY-P300YNW-A2/TR2(-BS) PURY-P600YSNW-A2/TR2(-BS) PURY-P300YNW-A2/TR2(-BS) PURY-P300YNW-A2/TR2(-BS) PURY-P650YSNW-A2/TR2(-BS) PURY-P300YNW-A2/TR2(-BS) PURY-P350YNW-A2/TR2(-BS) PURY-P700YSNW-A2/TR2(-BS)
  • Page 12: Specifications

    4. Specifications External static pressure 0 Pa Total capacity 50% to 150% Indoor unit Model P10 to P250, M20 to M140 Temperature range Indoor W.B. 15.0°C to 24.0°C (59°F to 75°F) (Cooling) Outdoor D.B. -5.0°C to 52.0°C (23°F to 126°F) Temperature range Indoor D.B.
  • Page 13: Package Contents

    5. Package contents The table below lists all the parts and their quantities included in the package. Tie band WT09973X01...
  • Page 14: Transporting The Unit

    6. Transporting the unit When lifting the unit, pass the slings through the four designated sling holes. - Improper lifting will cause the unit to topple or fall, resulting in serious injury. ・Always use two slings to lift up the unit. Each sling must be at least 8 m (26 ft) long and must be able to support the weight of the unit.
  • Page 15: Installation Location

    7. Installation location Do not install the unit where combustible gas may leak. - If combustible gas accumulates around the unit, fire or explosion may result. ・Provide sufficient space around the unit for effective operation, efficient air movement, and ease of access for maintenance.
  • Page 16: Multiple Unit Installation

    (3) When there are overhead obstacles ≥ 1000 (39-3/8) ≥ 240 (9-1/2) ≥ 45° Air outlet guide (not supplied) * To release heat through the air outlet guide, install the air outlet guide to the outdoor unit without gaps between them. ≥...
  • Page 17 (3) Combination of face-to-face and side-by-side installations When there are walls in the front and rear of the block of units Ⓐ Unit height h2’ Unit height Ⓐ L2’ Required minimum distance [mm (in)] L2 (Rear) L2' (Rear) L4 (Between) 300 (11-13/16) + h2 300 (11-13/16) + h2' 900 (35-7/16)
  • Page 18: Foundation Work

    8. Foundation work Install the unit in accordance with the instructions to minimize the risk of damage from earthquakes and strong winds. - Improper installation will cause the unit to topple, resulting in serious injury. To reduce the vibration of the unit operation, irrespective of the cause of the vibration such as earthquakes and strong winds, perform the foundation work in accordance with the installation instructions (including the instructions for installing anti-vibration rubber pads) provided in this section.
  • Page 19 Ⓐ M10 anchor bolt (not supplied) * Required specification for M10 anchor bolt: Tensile load of 5.6 kN or more to withstand the short-term load caused by earthquakes or strong winds (Incorrect installation) The corner section is not securely received. Ⓑ...
  • Page 20 ・When the unit is used in a cold region and the heating operation is continuously performed for a long time when the outside air temperature is below freezing, install a heater on the raised base or take other appropriate measures to prevent water from freezing on the raised base. ・When installing a panel heater, provide sufficient space for maintenance accordingly.
  • Page 21: Refrigerant Piping Work

    - It may also be in violation of applicable laws. - MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant.
  • Page 22 ・Do not install a sight glass because it may show improper refrigerant flow. If a sight glass is installed, inexperienced technicians that use the glass may overcharge the refrigerant. ・Support the on-site pipes near the outdoor unit at 0.5-meter intervals or less, and at 2-meter intervals or less in other areas.
  • Page 23 ・Restriction on installing the low-pressure pipe joint between outdoor units and sub BC (for P-J type, P-JA type, P-KA type, and P-KB type) To sub BC controller To main BC controller To outdoor unit - Regarding the low-pressure pipe joint between outdoor units and sub BC, A and B must be installed horizontally, and C must be installed upward higher than the horizontal plane of A and B.
  • Page 24: Pipe Selection

    9-2. Pipe selection Use refrigerant piping made of phosphorus deoxidized copper (copper and copper alloy seamless pipes) that meets local requirements. Pipe joints should also meet local requirements. Keep the inner and outer surfaces of the pipes clean and free of sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminants.
  • Page 25: Pipe Connection Example

    9-3-2. Joint Pipe Kit A Joint Pipe Kit is used to connect an indoor unit of P/M100 model or above. (1) R2 system Indoor unit model Kit model P100 to P250/M100 to M140 CMY-R160-J1 * When connecting P100 through P250/M100 through M140 models of indoor units to two ports, set the dipswitch SW4-6 on the BC controller to * When including only PEFY-P50/63/71/80/100VMHS2-E units, connect the two ports and set the dipswitches SW4-1 and SW4-6 on the BC controller to ON.
  • Page 26 9-4-2. Example of pipe connection between an outdoor unit and BC controller, and between a BC controller and indoor unit (R2 system) Single Ⓐ Outdoor unit Unit 1 Ⓑ BC controller (Main) Ⓐ BC controller (Sub) Ⓒ Indoor unit (Total capacity of downstream indoor Ⓓ...
  • Page 27 Combination modules with main and sub BC controllers (M-JA1 type, P-KA1 type, and M-KB1 type) Unit 1 Unit 2 Ⓓ Ⓐ Ⓐ Ⓒ Ⓚ Ⓞ Ⓜ Ⓗ Ⓗ Ⓑ Ⓝ Ⓛ Ⓟ Ⓗ Ⓒ Ⓒ Ⓕ Ⓒ Ⓖ Ⓠ Ⓡ Ⓓ...
  • Page 28 Pipes A, A [mm (in)] Combination unit Pipe A Pipe A Pipe A Unit model Unit 1 Unit 2 High-pressure Low-pressure High-pressure Low-pressure High-pressure Low-pressure P200YNW ø15.88 (5/8) ø19.05 (3/4) P250YNW ø19.05 (3/4) ø22.2 (7/8) P300YNW ø19.05 (3/4) ø22.2 (7/8) P350YNW ø19.05 (3/4) ø28.58 (1-1/8)
  • Page 29 Pipe B [mm (in)] Pipe Total capacity of indoor units Liquid 80 or below ø9.52 (ø3/8) ø15.88 (ø5/8) Pipes C, D, E, F, G, H, J (*) [mm (in)] Pipe Total model number of downstream indoor units High-pressure Low-pressure Liquid 200 or below ø15.88 (ø5/8) ø19.05 (ø3/4)
  • Page 30: Piping Connections And Valve Operations

    9-5. Piping connections and valve operations Before heating the brazed sections, remove the gas and oil that are trapped in the pipes. - Failure to do so may generate fire, resulting in serious injury. Ventilate the room while servicing the unit. - If the refrigerant leaks, oxygen deficiency may result.
  • Page 31 9-5-1. Removing the pinched connecting pipes The unit is shipped with the pinched connecting pipes attached to the high-pressure and low-pressure side service valves to prevent gas leakage. Take the following steps ① through ③ to remove the pinched connecting pipes before connecting refrigerant pipes to the outdoor unit.
  • Page 32 ・Do not use any commercially available anti-oxidizing agents since they may cause pipe corrosion and degrading of the refrigerant oil. Please contact Mitsubishi Electric for more details. ・Make sure that the pipes are not in contact with each other, unit panels, or base plates.
  • Page 33 <Reference> Size of refrigerant pipes On-site piping [mm (in)] Service valve piping [mm (in)] High-pressure side Low-pressure side High-pressure side Low-pressure side P200 ø15.88 (ø5/8) ø19.05 (ø3/4) P250 ø22.2 (ø7/8) ø22.2 (ø7/8) P300 ø19.05 (ø3/4) P350 ø28.58 (ø1-1/8) P400 P450 ø22.2 (ø7/8) ø28.58 (ø1-1/8) ø28.58 (ø1-1/8)
  • Page 34: Air-Tightness Test

    9-6. Air-tightness test Do not use oxygen, flammable gas, or a refrigerant containing chlorine for air-tightness testing. - Doing so may result in an explosion. Chlorine will deteriorate the refrigerant oil. After refrigerant pipe installation is completed, check the system for leaks by conducting an air-tightness test. If there is a leak, the composition of the refrigerant will change and the performance will drop.
  • Page 35: Thermal Insulation For Pipes

    9-7. Thermal insulation for pipes Insulate pipes to prevent condensation. - Condensation may collect and drip from the unit onto the ceiling or floor. Insulate the high- and low-pressure pipes, and liquid and gas pipes separately with polyethylene foam insulation materials.
  • Page 36 ・Make sure that the pipe connections all the way from the indoor unit are properly insulated. 9-7-2. Insulation for the section of the pipe that goes through a wall (1) Inner wall (concealed) (2) Outer wall (3) Outer wall (exposed) Ⓓ...
  • Page 37: Evacuation Of The System

    9-8. Evacuation of the system Do not purge the air using refrigerant. Use a vacuum pump to evacuate the system. - Residual gas in the refrigerant lines will cause bursting of the pipes or an explosion. Use a vacuum pump with a check valve. - If the vacuum pump oil flows back into the refrigerant lines, the refrigerant oil may deteriorate and the compressor may malfunction.
  • Page 38: Additional Refrigerant Charge

    9-9. Additional refrigerant charge Charge refrigerant in a liquid state. - Charging refrigerant in the gaseous state will change the composition of the refrigerant and lead to a performance drop. Do not use a charging cylinder when charging refrigerant. - The use of a charging cylinder may change the composition of the refrigerant and lead to a performance drop.
  • Page 39 (1) Units "m" and "kg" (In an R2 system) <Formula> ・When the piping length from the outdoor unit to the farthest indoor unit is 30.5 m (100 ft) or shorter Amount of High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe additional ø34.93 total length...
  • Page 40 ・When the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft) Amount of High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe additional ø34.93 total length ø28.58 total length ø22.2 total length ø19.05 total length ø15.88 total length charge (kg)
  • Page 41 (2) Units "ft" and "oz" (In an R2 system) <Formula> ・When the piping length from the outdoor unit to the farthest indoor unit is 30.5 m (100 ft) or shorter Amount of High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe additional ø1-3/8 total length...
  • Page 42 ・When the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft) Amount of High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe additional ø1-3/8 total length ø1-1/8 total length ø7/8 total length ø3/4 total length ø5/8 total length charge (oz)
  • Page 43 9-9-2. Charging additional refrigerant Charge the calculated amount of refrigerant in the liquid state to the unit through the service port after the completion of piping work. Upon completion of all work, securely tighten all service port caps and shaft caps to prevent refrigerant leakage.
  • Page 44: Electrical Work

    10. Electrical work Electrical work must be performed by qualified personnel in accordance with local regulations and the instructions provided in this manual. Only use the specified cables and dedicated circuits. - Inadequate power source capacity or improper electrical work will result in electric shock, malfunction, or fire.
  • Page 45 ・An earth leakage breaker, local switch, and overcurrent breaker should be selected according to the unit capacity (leakage current limit, breaking current, etc.). ・Select the type of breaker for an inverter circuit as an earth leakage breaker. (Mitsubishi Electric NV-S series or its equivalent) ・When an earth leakage breaker without an overcurrent protection function is used, a local switch with a fuse or an...
  • Page 46: Control Cable Specifications

    ・The wire size is the minimum value for metal conduit wiring. If the voltage drops, use a wire that is one size thicker in diameter. Make sure the power-supply voltage does not drop more than 10%. Make sure that the voltage imbalance between the phases is 2% or less.
  • Page 47: System Configuration

    10-4. System configuration ・Unit code and the maximum number of connectable units Unit type Code Number of connectable units Main unit – Outdoor unit Sub unit – Indoor unit 1 to 50 units per OC (depends on the unit model) Main 1 unit per OC BC controller...
  • Page 48 (2) When MA remote controllers are connected Group 1 Group 3 Group 5 * Move the power jumper from CN41 to CN40. * CN41 CN40 * SW5-1: ON * (51) (52) (01) (04) (55) (05) (06) TB02 TB02 TB15 TB15 TB15 TB15 M1 M2 S...
  • Page 49 (3) When a transmission booster unit is connected Earth (52) (51) M1M2 S M1M2 S CN41 CN41 A B S TB02 M1M2 M1M2 M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S Ⓐ Shielded cable Ⓐ *1 Daisy-chain terminals (TB3) on outdoor units together in the same refrigerant system. *2 Leave the power jumper connected to CN41.
  • Page 50: Wiring Connections In The Control Box

    10-5. Wiring connections in the control box Connections must be made securely and without tension on the terminals. - Improperly connected cables may break, overheat, or cause smoke or fire. 10-5-1. Threading power cable through the knockout hole ・Open the front panel when performing wiring work. ・Punch out the knockout holes at the bottom of the front panel or base with a hammer.
  • Page 51 [2] (E)P350 to 500 (1) When routing the wiring through the front of the unit (2) When routing the wiring through the bottom of the unit Ⓐ Ⓐ Ⓑ Ⓒ Ⓑ Fill the gap. Ⓒ Power cable size (mm Knockout hole to be used 2, 3.5, 5.5 Knockout hole 2 8, 14...
  • Page 52 10-5-2. Fixing the cables in place Route the cables as shown in the figures below. ・(E)P200 to 300 Inverter Box Main Box Power supply terminal block Cable strap Rubber bushing Transmission terminal block (for FAN cable) Tie band Rubber bushing (Supplied) (for main inverter connection wiring (200 V) and unit wiring...
  • Page 53 Take the procedure below. ① Thread the power cable through the rubber bushing 1. (See * and * below.) ② Thread the unit wiring (sensor wiring) and the transmission cable through the rubber bushing 2. (See * and * below.) ③...
  • Page 54 10-5-3. Connecting the cables (E)P200 to 300 Ⓒ Ⓓ Ⓐ-1 Ⓐ-2 Ⓑ L1 L2 L3 N (E)P350 to 550 Ⓐ Control box Ⓒ Ⓓ Ⓐ Ⓑ Power supply terminal block (TB1) Ⓑ L1 L2 L3 N Ⓒ Terminal block for indoor-outdoor transmission cable (TB3) Ⓓ...
  • Page 55: Address Setting

    ⑤ Connect terminals M1 and M2 of the transmission terminal block on the indoor unit that has the lowest address in the group to the terminal block on the remote controller. ⑥ When a system controller is connected, set SW5-1 on all outdoor units to ON. ⑦...
  • Page 56: Test Run

    11. Test run 11-1. Before a test run After the wiring work has been completed, measure the insulation resistance, and make sure that it reads at least 1 MΩ. - Failure to do so may result in electric leakage, malfunction, or fire. Turn on the power at least 12 hours before starting operation.
  • Page 57: Function Setting

    11-2. Function setting Make function settings by setting the dipswitches SW4, SW6, and SWP3 on the main board. Write down the switch settings on the electrical wiring diagram label on the control box front panel for future reference when the control box needs to be replaced. ・Take the following steps to make temperature unit (ºC or ºF) settings.
  • Page 58: Operation Characteristics In Relation To The Refrigerant Charge

    11-3. Operation characteristics in relation to the refrigerant charge It is important to have a clear understanding of the characteristics of refrigerant and the operation characteristics of air conditioners before attempting to adjust the refrigerant charge in a given system. ・During cooling operation, the amount of refrigerant in the accumulator is the smallest when all indoor units are in operation.
  • Page 59: Inspection And Maintenance

    If the contract is signed, service technicians will periodically inspect the unit to identify any damage at an early stage, and take appropriate measures. ・Please contact local MITSUBISHI ELECTRIC sales office for maintenance frequency and tasking recommendations.
  • Page 60: Rating Plate Information

    13. Rating plate information (1) P models Model P200YNW P250YNW P300YNW P350YNW P400YNW P400YSNW P450YNW Unit combination – – – – – P200YNW P200YNW – Refrigerant (R410A) 5.2 kg 5.2 kg 5.2 kg 8.0 kg 8.0 kg 5.2 kg 5.2 kg 10.8 kg Allowable pressure (PS) HP: 4.15 MPa, LP: 2.21 MPa...
  • Page 61 WT09973X01...
  • Page 62 Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN MANUFACTURER: MITSUBISHI ELECTRIC CORPORATION AIR-CONDITIONING & REFRIGERATION SYSTEMS WORKS 5-66, TEBIRA 6 CHOME, WAKAYAMA-CITY, 640-8686, JAPAN WT09973X01...

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