Summary of Contents for Mitsubishi Electric City Multi R2 Series
Air-Conditioners For Building Application OUTDOOR UNIT PURY-P-YNW-A(-BS) For use with R410A PURY-EP-YNW-A(-BS) INSTALLATION MANUAL For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit. INSTALLATIONSHANDBUCH Zum sicheren und ordnungsgemäßen Gebrauch der Klimageräte das Installationshandbuch gründlich durchlesen. MANUEL D’INSTALLATION Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer d’une utilisation correcte.
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....................4 1-5. Precautions for electrical wiring ..................... 5 1-6. Precautions for relocating or repairing the unit ..............5 1-7.
- 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.
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.
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. Do not allow children to play with the packing materials. - Suffocation or serious injury may result. Cut up the packing materials before disposal.
1-5. Precautions for electrical wiring Include some slack in the power cables. - Failure to do so may break or overheat the cables, resulting in smoke or fire. Connections must be made securely and without tension on the terminals. - Improperly connected cables may break, overheat, or cause smoke or fire. Tighten all terminal screws to the specified torque.
1-7. Additional precautions Do not turn off the power immediately after stopping operation. - Wait for at least five minutes after the unit has stopped before turning off the power. Failure to do so may result in drain water leakage or the mechanical failure of sensitive parts. The unit must be periodically inspected by a dealer or qualified personnel.
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. Keep tools clean. - If dust, dirt, or water accumulates on the charging hose or the flare processing tool, the refrigerant will deteriorate and the compressor will malfunction.
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., PURY-P***YNW-A, PURY-EP***YNW-A) 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.
4. Specifications (1) P models Model PURY-P200YNW-A* PURY-P250YNW-A* Sound pressure level (50/60 Hz) 59 dB <A> 60.5 dB <A> External static pressure 0 Pa* Total capacity 50% to 150%* Indoor unit Model 15 to 250 Quantity 1 to 20 1 to 25 Indoor W.B.
(2) EP models Model PURY-EP200YNW-A* PURY-EP250YNW-A* Sound pressure level (50/60 Hz) 59 dB <A> 60.5 dB <A> External static pressure 0 Pa* Total capacity 50% to 150%* Indoor unit Model 15 to 250 Quantity 1 to 20 1 to 25 Temperature range Indoor W.B.
5. Package contents The table below lists all the parts and their quantities included in the package. (1) P models Tie band P200 P250 P300 P350 P400 P450 P500 P550 (2) EP models Tie band EP200 EP250 EP300 EP350 EP400 EP450 EP500 EP550...
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.
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.
(3) When there are overhead obstacles Air outlet guide (not supplied) 7-2. Multiple unit installation ・When installing multiple units, make sure to take into consideration factors such as providing enough space for people to pass through, ample space between blocks of units, and sufficient space for airflow. (The areas marked with Ⓐ...
(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)
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. The unit must be securely installed on a structure that can sustain its weight. - Failure to do so will cause the unit to fall, resulting in serious injury.
・To remove the detachable legs on site, unscrew the screws shown in the figure below. If the unit leg coating is damaged when the detachable leg is removed, repair the coating on site. Ⓐ Screws Ⓐ Ⓐ ・In abnormally harsh environments such as cold and/or windy areas, sufficient countermeasures to guard against excessive wind and snow should be taken to ensure the unit’s correct operation.
- 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.
・The pipe from multiple outdoor units must be installed so that oil will not accumulate in the pipe under certain conditions. Refer to the figures below for details. * Small dots in the figures indicate branching points. Ⓐ To a BC controller (1) The pipe from the outdoor units must be inclined downward to the indoor unit side.
・Restriction on installing the 2-Branch Joint Pipe CMY-R101/102S-G on the low-pressure piping To sub BC controller To main BC controller To outdoor unit - Regarding the 2-Branch Joint Pipe on the low-pressure piping, A and B must be installed horizontally, and C must be installed upward higher than the horizontal plane of A and B.
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.
9-3-3. Outdoor unit twinning kit Outdoor unit twinning kit is used to combine multiple outdoor units. Total capacity of outdoor units Kit model P400 to P650YSNW-A CMY-R100VBK4 P700 to P1100YSNW-A CMY-R200VBK4 EP400 to EP650YSNW-A CMY-R100VBK4 EP700 to EP1100YSNW-A CMY-R200VBK4 9-4. Pipe connection example 9-4-1.
9-4-2. Example of pipe connection between an outdoor unit and BC controller, and between a BC controller and indoor unit (R2 system) P200 to P550YNW-A EP200 to EP550YNW-A Ⓐ Outdoor unit Unit 1 Ⓑ BC controller (Main) Ⓐ Ⓒ BC controller (Sub) Ⓓ...
(1) P models Pipes A, A [mm] 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-A ø15.88 ø19.05 P250YNW-A ø19.05 ø22.2 P300YNW-A ø19.05 ø22.2 P350YNW-A ø19.05 ø28.58 P400YNW-A ø22.2 ø28.58 P400YSNW-A...
(2) EP models Pipes A, A [mm] 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 ø15.88 ø19.05 EP200YNW-A ø19.05 ø22.2 EP250YNW-A ø19.05 ø22.2 EP300YNW-A ø19.05 ø28.58 EP350YNW-A ø22.2 ø28.58 EP400YNW-A EP200...
(3) P and EP models 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, I (*) [mm (in)] Pipe Total model number of downstream indoor units High-pressure Low-pressure Liquid...
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.
・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.
<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)
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.
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.
・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) Ⓓ...
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.
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.
(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...
<Example> Outdoor unit 1 model: PURY-EP300YNW-A Outdoor unit 2 model: PURY-EP300YNW-A BC controller (Main) model: CMB-P108V-JA BC controller (Sub) model: CMB-P104V-KB × 4 units Total capacity of connected indoor units: 530 * Refer to the pipe connection examples in section 9-4 for the pipes marked with the letters below. A: ø28.58;...
(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...
<Example> Outdoor unit 1 model: PURY-EP300YNW-A Outdoor unit 2 model: PURY-EP300YNW-A BC controller (Main) model: CMB-P108V-JA BC controller (Sub) model: CMB-P104V-KB × 4 units Total capacity of connected indoor units: 530 * Refer to the pipe connection examples in section 9-4 for the pipes marked with the letters below. A: ø1-1/8;...
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.
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.
・Be sure to use the appropriate type of overcurrent breaker. Note that generated overcurrent may include some amount of direct current. ・Select the type of breaker for an inverter circuit as an earth leakage breaker. (Mitsubishi Electric NV-S series or its equivalent) ・The earth leakage breaker should be used in combination with a local switch.
Indoor unit Sample chart PLFY-(WP)VBM, PMFY-VBM, PEFY-VMS, PCFY-VKM, Type 1 18.6 6000 PKFY-VHM, PKFY-VKM, PFFY-VKM, PFFY-(WP)VLRMM Type 2 PEFY-(WP)VMA Type 3 PEFY-VMHS 13.8 SAMPLE Type 4 Indoor unit other than the above "C" is multiples of the tripping current at 0.01 s. Obtain the value of "C"...
10-3. Control cable specifications ・Transmission cable Type 2-core shielded cable CVVS, CPEVS, or MVVS Size 1.25 mm (AWG 16) Length Max. 200 m (656 ft) The maximum allowable length of transmission cables via outdoor units (both centralized control transmission cables and indoor-outdoor transmission cables) is 500 m (1640 ft) Remarks The maximum allowable length of transmission cables from the power supply unit to each outdoor unit or to the system...
・System configuration example * The numbers in the parentheses in the figures below indicate address numbers. (1) When ME remote controllers are connected * Move the power jumper from Group 1 Group 3 Group 5 CN41 to CN40. * CN41 CN40 * SW5-1: ON * (51) (52)
(2) When MA remote controllers are connected Group 1 Group 3 Group 5 * Move the power jumper from CN41 to CN40. * CN41 CN40 (51) * SW5-1: ON * (52) (01) (04) (55) (05) (06) TB02 TB02 TB15 TB15 TB15 TB15 M1 M2 S...
(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.
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.
<Notice> ・Do not remove the ground wire that connects Main Box and Inverter Box. ・Install the transmission cable as shown in the figure above so that the cable is long enough for the Main Box to be moved for servicing. ・If there are any gaps around the power cable and transmission cable, please be sure to fill these in with a suitable material to prevent snow from entering, which may cause damage to the electrical parts, and to protect your hands from direct contact with cables.
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) Rubber bushing Tie band (for main inverter connection (Supplied) wiring (200 V) and unit wiring...
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...
10-5-3. Connecting the cables PURY-(E)P200 to 300YNW-A Ⓒ Ⓓ Ⓐ-1 Ⓐ-2 Ⓑ L1 L2 L3 N PURY-(E)P350 to 550YNW-A Ⓐ Ⓒ Ⓓ Control box Ⓐ Ⓑ Ⓑ Power supply terminal block (TB1) Ⓒ L1 L2 L3 N Terminal block for indoor-outdoor transmission cable (TB3) Ⓓ...
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...
11. Test run 11-1. Before a test run After the wiring work has been completed, measure the insulation resistance, and make - Failure to do so may result in electric leakage, malfunction, or fire. Turn on the power at least 12 hours before starting operation. Keep the power turned on throughout the operating season.
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.
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.
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.
13. Rating plate information (1) P models Model PURY-P200YNW-A(-BS) PURY-P250YNW-A(-BS) PURY-P300YNW-A(-BS) PURY-P350YNW-A(-BS) Unit combination – – – – Refrigerant (R410A) 5.2 kg 5.2 kg 5.2 kg 8.0 kg Allowable pressure (Ps) HP: 4.15 MPa, LP: 2.21 MPa Net weight 229 kg 229 kg 231 kg 273 kg...
(2) EP models Model PURY-EP200YNW-A(-BS) PURY-EP250YNW-A(-BS) PURY-EP300YNW-A(-BS) PURY-EP350YNW-A(-BS) Unit combination – – – – Refrigerant (R410A) 5.2 kg 5.2 kg 5.2 kg 8.0 kg Allowable pressure (Ps) HP: 4.15 MPa, LP: 2.21 MPa Net weight 234 kg 234 kg 236 kg 279 kg Model PURY-EP400YNW-A(-BS)