Air-Conditioners For Building Application Inverter Y-Series OUTDOOR UNIT

Transcription

1 <ORIGINL> ir-onditioners or uilding pplication Inverter Y-Series OUTOOR UNIT PUY-P-YK (-S) or use wit R410 INSTLLTION MNUL or safe and correct use, please read tis installation manual torougly before installing te air-conditioner unit. MNULE I INSTLLZIONE Per un uso sicuro e corretto, leggere attentamente questo manuale di installazione prima di installare il condizionatore d aria. MONTJ ELKİTI Emniyetli ve doğru biçimde nasıl kullanılacağını öğrenmek için lütfen klima ciazını monte etmeden önce bu elkitabını dikkatle okuyunuz. TR I

2 ontents 1. Safety precautions efore installation and electric work Precautions for devices tat use R410 refrigerant efore installation efore installation (relocation) - electrical work efore starting te test run bout te product ombination of outdoor units Specifi cations onfi rmation of parts attaced Space required around unit Lifting metod Installation of unit Installation Refrigerant piping installation aution Refrigerant piping system dditional refrigerant carge alculation of additional refrigerant carge Precautions concerning piping connection and valve operation irtigt test, evacuation, and refrigerant carging Termal insulation of refrigerant piping Wiring (or details, refer to te installation manual of eac indoor/outdoor unit and controller.) aution ontrol box and connecting position of wiring Wiring transmission cables Wiring of main power supply and equipment capacity Test run Typical unit operation Outdoor unit function setting Information on rating plate Safety precautions 1.1. efore installation and electric work efore installing te unit, make sure you read all te Safety precautions. Te Safety precautions provide very important points regarding safety. Make sure you follow tem. Symbols used in te text Warning: escribes precautions tat sould be observed to prevent danger of injury or deat to te user. aution: escribes precautions tat sould be observed to prevent damage to te unit. Symbols used in te illustrations : Indicates an action tat must be avoided. : Indicates tat important instructions must be followed. : Indicates a part wic must be grounded. : eware of electric sock. (Tis symbol is displayed on te main unit label.) <olor: yellow> Warning: arefully read te labels attaced to te outdoor unit. HIGH VOLTGE WRNING: ontrol box ouses ig-voltage parts. Wen opening or closing te front panel of te control box, do not let it come into contact wit any of te internal components. efore inspecting te inside of te control box, turn off te power, keep te unit off for at least 10 minutes, and confirm tat te capacitor voltage (inverter main circuit) as dropped to 20 V or less. (It takes about 10 minutes to discarge electricity after te power supply is turned off.) ontrol box ouses ig temperature parts. e well careful even after turning off te power source. Perform te service after disconnecting te fan board connector (NINV) and te inverter board connector (N1). (To plug or unplug connectors, ceck tat te outdoor unit fan is not rotating and tat te voltage of capacitor in te main circuit is 20 V or below. Te capacitor may collect a carge and cause an electric sock wen te outdoor unit fan rotates in windy conditions. Refer to te wiring nameplate for details.) To connect wiring to T7, ceck tat te voltage is 20 V or below. Reconnect te connector (NINV) back to te fan board and reconnect te connector (N1) back to te inverter board after servicing. Warning: o not use refrigerant oter tan te type indicated in te manuals provided wit te unit and on te nameplate. - oing so may cause te unit or pipes to burst, or result in explosion or fi re during use, during repair, or at te time of disposal of te unit. - It may also be in violation of applicable laws. - MITSUISHI ELETRI ORPORTION cannot be eld responsible for malfunctions or accidents resulting from te use of te wrong type of refrigerant. 2 sk te dealer or an autorized tecnician to install te air conditioner. - Improper installation by te user may result in water leakage, electric sock, or fi re. Tis appliance is not intended for use by persons (including cildren) wit reduced pysical, sensory or mental capabilities, or lack of experience and knowledge, unless tey ave been given supervision or instruction concerning use of te appliance by a person responsible for teir safety. Tis appliance is intended to be used by expert or trained users in sops, in ligt industry and on farms, or for commercial use by lay persons. Install te unit at a place tat can witstand its weigt. - ailure to do so may cause te unit to fall down, resulting in injuries and damage to te unit. Use te specified cables for wiring. Make te connections securely so tat te outside force of te cable is not applied to te terminals. - Inadequate connection and fastening may generate eat and cause a fi re. Prepare for strong winds and eartquakes and install te unit at te specified place. - Improper installation may cause te unit to topple and result in injury and damage to te unit. lways use filters and oter accessories specified by Mitsubisi Electric. - sk an autorized tecnician to install te accessories. Improper installation by te user may result in water leakage, electric sock, or fi re. Never attempt to repair te unit witout te proper qualifications. If te air conditioner must be repaired consult te dealer, contractor or qualified Refrigeration Engineer. - If te unit is repaired improperly, water leakage, electric sock, or fi re may result. If te supply cord is damaged, it must be replaced by te manufacturer, its service agent or similarly qualified persons in order to avoid a azard. o not touc te eat excanger fins. - Improper andling may result in injury. If refrigerant gas leaks during installation work, ventilate te room. - If te refrigerant gas comes into contact wit a fl ame, poisonous gases will be released. Install te air conditioner according to tis Installation Manual. - If te unit is installed improperly, water leakage, electric sock, or fi re may result. Have all electric work done by a licensed electrician according to te Electric acility Engineering Standard, te Wire Regulations in eac area and te instructions given in tis manual and always use a dedicated power supply. - If te power source capacity is inadequate or electric work is performed improperly, electric sock and fi re may result. Securely install te outdoor unit terminal cover (panel). - If te terminal cover (panel) is not installed properly, dust or water may enter te outdoor unit and fi re or electric sock may result. Wen installing and moving te air conditioner to anoter site, do not carge it wit a refrigerant different from te refrigerant specified on te unit. - If a different refrigerant or air is mixed wit te original refrigerant, te refrigerant cycle may malfunction and te unit may be damaged. If te air conditioner is installed in a small room, measures must be taken to prevent te refrigerant concentration from exceeding te safety limit if te refrigerant sould leak. - onsult te dealer regarding te appropriate measures to prevent te safety limit from being exceeded. Sould te refrigerant leak and cause te safety limit to be exceeded, azards due to lack of oxygen in te room could result.

3 Wen moving and reinstalling te air conditioner, consult te dealer or an autorized tecnician. - If te air conditioner is installed improperly, water leakage, electric sock, or fi re may result. fter completing installation work, make sure tat refrigerant gas is not leaking. - If te refrigerant gas leaks and is exposed to a fan eater, stove, oven, or oter eat source, it may generate noxious gases. o not reconstruct or cange te settings of te protection devices. - If te pressure switc, termal switc, or oter protection device is sorted or operated forcibly, or parts oter tan tose specifi ed by Mitsubisi Electric are used, fi re or explosion may result. To dispose of tis product, consult your dealer. Te installer and system specialist sall secure safety against leakage according to local regulation or standards. - oose te appropriate wire size and te switc capacities for te main power supply described in tis manual if local regulations are not available. Pay special attention to te place of installation, suc as a basement, etc. were refrigeration gas can accumulate, since refrigerant is eavier tan te air. or outdoor units tat allow outside air intake to te indoor unit, te installation site must be carefully cosen to ensure only clean air can enter te room. - irect exposure to outdoor air may ave armful effects on people or food. ildren sould be supervised to ensure tat tey do not play wit te appliance Precautions for devices tat use R410 refrigerant aution: o not use existing refrigerant piping. - Te old refrigerant and refrigerant oil in te existing piping contains a large amount of clorine wic may cause te refrigerant oil of te new unit to deteriorate. - R410 is a ig-pressure refrigerant and can cause te existing piping to burst. Use refrigerant piping made of posporus deoxidized copper and copper alloy seamless pipes and tubes. In addition, be sure tat te inner and outer surfaces of te pipes are clean and free of azardous sulpur, oxides, dust/dirt, saving particles, oils, moisture, or any oter contaminant. - ontaminants on te inside of te refrigerant piping may cause te refrigerant oil to deteriorate. Store te piping to be used during installation indoors and keep bot ends of te piping sealed until just before brazing. (Store elbows and oter joints in a plastic bag.) - If dust, dirt, or water enters te refrigerant cycle, deterioration of te oil and compressor failure may result. pply only a small amount of ester oil, eter oil, or alkyl benzene to flare connections (for indoor unit). - Infi ltration of a large amount of mineral oil may cause te refrigerant oil to deteriorate. Use liquid refrigerant to fill te system. - If gas refrigerant is used to fi ll te system, te composition of te refrigerant in te cylinder will cange and performance may drop. o not use a refrigerant oter tan R If anoter refrigerant (R22, etc.) is mixed wit R410, te clorine in te refrigerant may cause te refrigerant oil to deteriorate. Use a vacuum pump wit a reverse flow ceck valve. - Te vacuum pump oil may fl ow back into te refrigerant cycle and cause te refrigerant oil to deteriorate. o not use te following tools tat are used wit conventional refrigerants. (Gauge manifold, carge ose, gas leak detector, reverse flow ceck valve, refrigerant carge base, refrigerant recovery equipment) - If te conventional refrigerant and refrigerant oil are mixed in te R410, te refrigerant may deteriorate. - If water is mixed in te R410, te refrigerant oil may deteriorate. - Since R410 does not contain any clorine, gas leak detectors for conventional refrigerants will not react to it. o not use a carging cylinder. - Using a carging cylinder may cause te refrigerant to deteriorate. e especially careful wen managing te tools. - If dust, dirt, or water gets into te refrigerant cycle, te refrigerant may deteriorate efore installation aution: o not install te unit were combustible gas may leak. - If te gas leaks and accumulates around te unit, an explosion may result. o not use te air conditioner were food, pets, plants, precision instruments, or artwork are kept. - Te quality of te food, etc. may deteriorate. o not use te air conditioner in special environments. - Oil, steam, sulfuric smoke, etc. can signifi cantly reduce te performance of te air conditioner or damage its parts. Wen installing te unit in a ospital, communication station, or similar place, provide sufficient protection against noise. - Inverter equipment, private power generator, ig-frequency medical equipment, or radio communication equipment may cause te air conditioner to operate erroneously, or fail to operate. On te oter and, te air conditioner may affect suc equipment by creating noise tat disturbs medical treatment or image broadcasting. o not install te unit on or over tings tat are subject to water damage. - Wen te room umidity exceeds 80% or wen te drain pipe is clogged, condensation may drip from te indoor unit. Perform collective drainage work togeter wit te outdoor unit, as required efore installation (relocation) - electrical work aution: Ground te unit. - o not connect te ground wire to gas or water pipes, ligtning rods, or telepone ground lines. Improper grounding may result in electric sock. Never connect in reverse pases. Never connect te Power Line L1, L2, and L3 to Terminal N. - If te unit is miss wired, wen power is supplied, some electrical parts will be damaged. Install te power cable so tat tension is not applied to te cable. - Tension may cause te cable to break and generate eat and cause a fi re. Install a leak circuit breaker for an inverter, as required. - If a leak circuit breaker is not installed, electric sock may result. Use power line cables of sufficient current carrying capacity and rating. - ables tat are too small may leak, generate eat, and cause a fi re. Use only a circuit breaker and fuse of te specified capacity. - fuse or circuit breaker of a larger capacity, or te use of a substitute simple steel or copper wire may result in a general unit failure or fi re. If a large electric current flows due to malfunction or faulty wiring, eart-leakage breakers on te unit side and on te upstream side of te power supply system may bot operate. epending on te importance of te system, separate te power supply system or take protective coordination of breakers. o not touc te electrical parts wit bare ands wile te unit is in operation or immediately after operation. - oing so may result in burns. o not was te air conditioner units. - Wasing tem may cause an electric sock. e careful tat te installation base is not damaged by long use. - If te damage is left uncorrected, te unit may fall and cause personal injury or property damage. Install te drain piping according to tis Installation Manual to ensure proper drainage. Wrap termal insulation around te pipes to prevent condensation. - Improper drain piping may cause water leakage causing damage to furniture and oter possessions. e very careful about transporting te product. - One person sould not carry te product. Its weigt is in excess of 20 kg. - Some products use PP bands for packaging. o not use any PP bands as a means of transportation. It is dangerous. - o not touc te eat excanger fi ns. oing so may cut your fi ngers. - Wen transporting te outdoor unit, support it at te specifi ed positions on te unit base. lso support te outdoor unit at four points so tat it cannot slip sideways. Safely dispose of te packing materials. - Packing materials, suc as nails and oter metal or wooden parts, may cause stabs or oter injuries. - Tear apart and trow away plastic packaging bags so tat cildren will not play wit tem. If cildren play wit a plastic bag wic as not been torn apart, tey face te risk of suffocation. Wen te power is turned on, te compressor is energized even wile it is not operating. - efore turning on te power, disconnect all power supply wires from te compressor terminal block, and measure te insulation resistance of te compressor. - eck te compressor for a ground fault. If te insulation resistance is 1.0 MΩ or below, connect all power supply wires to te compressor and turn on te power to te outdoor unit. (Te liquid refrigerant in te compressor will evaporate by energizing te compressor.) 3

4 1.5. efore starting te test run aution: Turn on te power at least 12 ours before starting operation. - Starting operation immediately after turning on te main power switc can result in irreversible damage to internal parts. Keep te power switc turned on during te operational season. Make sure of te pase order of power supply and voltage between eac pase. o not touc te switces wit wet fingers. - Toucing a switc wit wet fi ngers can result in an electric sock. o not touc te refrigerant pipes during and immediately after operation. - uring and immediately after operation, te refrigerant pipes may be ot or cold, depending on te condition of te refrigerant fl owing troug te refrigerant piping, compressor, and oter refrigerant cycle parts. Your ands may suffer burns or frostbite if you touc te refrigerant pipes. o not operate te air conditioner wit te panels and guards removed. - Rotating, ot, or ig-voltage parts can cause injuries. o not turn off te power immediately after stopping operation. - lways wait at least 5 minutes before turning off te power. Oterwise, drainage water leakage or mecanical failure of sensitive parts may occur. o not touc te surface of te compressor during servicing. - If te unit is connected to a supply and not running, te crank case eater located at te base of te compressor may still be operating. 2. bout te product Tis unit uses R410-type refrigerant Piping for systems using R410 may be different from tat for systems using conventional refrigerant because te design pressure in systems using R410 is iger. Refer to te ata ook for more information. Some of te tools and equipment used for installation wit systems tat use oter types of refrigerant cannot be used wit te systems using R410. Refer to te ata ook for more information. o not use te existing piping, as it contains clorine, wic is found in conventional refrigerating macine oil and refrigerant. Tis clorine will deteriorate te refrigerant macine oil in te new equipment. Te existing piping must not be used as te design pressure in systems using R410 is iger tan tat in te systems using oter types of refrigerant and te existing pipes may burst. 3. ombination of outdoor units omponent units of PUY-P550 to P1350YSK(-S) and PUY-EP400 to EP1100YSK(-S) are listed below. PUY-P-Y(S)K Outdoor unit model omponent unit model PUY-P200YK(-S) PUY-P250YK(-S) PUY-P300YK(-S) PUY-P350YK(-S) PUY-P400YK(-S) PUY-P450YK(-S) PUY-P500YK(-S) PUY-P550YSK(-S) PUY-P300YK(-S) PUY-P250YK(-S) - PUY-P600YSK(-S) PUY-P350YK(-S) PUY-P250YK(-S) - PUY-P650YSK(-S) PUY-P400YK(-S) PUY-P250YK(-S) - PUY-P700YSK(-S) PUY-P450YK(-S) PUY-P250YK(-S) - PUY-P750YSK(-S) PUY-P450YK(-S) PUY-P300YK(-S) - PUY-P800YSK(-S) PUY-P400YK(-S) PUY-P400YK(-S) - PUY-P850YSK(-S) PUY-P450YK(-S) PUY-P400YK(-S) - PUY-P900YSK(-S) PUY-P450YK(-S) PUY-P450YK(-S) - PUY-P950YSK(-S) PUY-P500YK(-S) PUY-P450YK(-S) - PUY-P1000YSK(-S) PUY-P500YK(-S) PUY-P500YK(-S) - PUY-P1050YSK(-S) PUY-P450YK(-S) PUY-P300YK(-S) PUY-P300YK(-S) PUY-P1100YSK(-S) PUY-P450YK(-S) PUY-P350YK(-S) PUY-P300YK(-S) PUY-P1150YSK(-S) PUY-P400YK(-S) PUY-P400YK(-S) PUY-P350YK(-S) PUY-P1200YSK(-S) PUY-P400YK(-S) PUY-P400YK(-S) PUY-P400YK(-S) PUY-P1250YSK(-S) PUY-P450YK(-S) PUY-P400YK(-S) PUY-P400YK(-S) PUY-P1300YSK(-S) PUY-P450YK(-S) PUY-P450YK(-S) PUY-P400YK(-S) PUY-P1350YSK(-S) PUY-P450YK(-S) PUY-P450YK(-S) PUY-P450YK(-S) *PUY-P550 to P1350YK(-S) require Twinning KIT to connect component unit modules in te fi eld. PUY-EP-Y(S)K Outdoor unit model omponent unit model PUY-EP400YSK(-S) PUY-P200YK(-S) PUY-P200YK(-S) - PUY-EP450YSK(-S) PUY-P250YK(-S) PUY-P200YK(-S) - PUY-EP500YSK(-S) PUY-P250YK(-S) PUY-P250YK(-S) - PUY-EP650YSK(-S) PUY-P350YK(-S) PUY-P300YK(-S) - PUY-EP700YSK(-S) PUY-P350YK(-S) PUY-P350YK(-S) - PUY-EP750YSK(-S) PUY-P350YK(-S) PUY-P200YK(-S) PUY-P200YK(-S) PUY-EP800YSK(-S) PUY-P350YK(-S) PUY-P250YK(-S) PUY-P200YK(-S) PUY-EP850YSK(-S) PUY-P350YK(-S) PUY-P250YK(-S) PUY-P250YK(-S) PUY-EP900YSK(-S) PUY-P350YK(-S) PUY-P300YK(-S) PUY-P250YK(-S) PUY-EP950YSK(-S) PUY-P350YK(-S) PUY-P300YK(-S) PUY-P300YK(-S) PUY-EP1000YSK(-S) PUY-P350YK(-S) PUY-P350YK(-S) PUY-P300YK(-S) PUY-EP1050YSK(-S) PUY-P350YK(-S) PUY-P350YK(-S) PUY-P350YK(-S) PUY-EP1100YSK(-S) PUY-P400YK(-S) PUY-P350YK(-S) PUY-P350YK(-S) *PUY-EP400 to EP1100YK(-S) require Twinning KIT to connect component unit modules in te fi eld. 4

5 4. Specifications PUY-P-Y(S)K Model PUY-P200YK PUY-P250YK PUY-P300YK PUY-P350YK PUY-P400YK PUY-P450YK PUY-P500YK PUY-P550YSK PUY-P600YSK Noise level (50/60Hz) 57d<> 58d<> 61d<> 61d<> 63d<> 63d<> 65d<> 63d<> 63d<> External static pressure 0Pa *2 Total capacity 50 ~ 130% *1 Indoor units Model 15 ~ 250 Quantity 1 ~ 17 1 ~ 21 1 ~ 26 1 ~ 30 1 ~ 34 1 ~ 39 1 ~ 43 2 ~ 47 2 ~ 50 Operation temperature Standard type res air intake type ooling mode: 10 ~ 52 ooling mode: 21 ~ 43 Model PUY-P650YSK PUY-P700YSK PUY-P750YSK PUY-P800YSK PUY-P850YSK PUY-P900YSK PUY-P950YSK PUY-P1000YSK PUY-P1050YSK Noise level (50/60Hz) 64.5d<> 64.5d<> 65.5d<> 66d<> 66d<> 66d<> 67.5d<> 68d<> 66.5d<> External static pressure 0Pa *2 Total capacity 50 ~ 130% *1 Indoor units Model 15 ~ 250 Quantity 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 Operation temperature Standard type res air intake type ooling mode: 10 ~ 52 ooling mode: 21 ~ 43 Model PUY-P1100YSK PUY-P1150YSK PUY-P1200YSK PUY-P1250YSK PUY-P1300YSK PUY-P1350YSK Noise level (50/60Hz) 66.5d<> 67.5d<> 68d<> 68d<> 68d<> 68d<> External static pressure 0Pa *2 Total capacity 50 ~ 130% *1 Indoor units Model 15 ~ 250 Quantity 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 Operation temperature Standard type res air intake type ooling mode: 10 ~ 52 ooling mode: 21 ~ 43 PUY-EP-Y(S)K Model PUY-EP400YSK PUY-EP450YSK PUY-EP500YSK PUY-EP650YSK PUY-EP700YSK PUY-EP750YSK PUY-EP800YSK PUY-EP850YSK PUY-EP900YSK Noise level (50/60Hz) 60d<> 60.5d<> 61d<> 64d<> 64d<> 64d<> 64d<> 64d<> 65d<> External static pressure 0 Pa *2 Total capacity 50 ~ 130% *1 Indoor units Model 15 ~ 250 Quantity 1 ~ 34 1 ~ 39 1 ~ 43 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 Operation temperature Standard type res air intake type Model PUY-EP950YSK PUY-EP1000YSK PUY-EP1050YSK PUY-EP1100YSK Noise level (50/60Hz) 66d<> 66d<> 66d<> 67d<> External static pressure 0 Pa *2 Total capacity 50 ~ 130% *1 Indoor units Model 15 ~ 250 Quantity 2 ~ 50 2 ~ 50 2 ~ 50 2 ~ 50 Operation temperature Standard type res air intake type ooling mode: 10 ~ 52 ooling mode: 21 ~ 43 *1: Te total indoor capacity of units run simultaneously is 130% or less. *2: To enable ig static pressure, set te ipsw on te main panel as follows. SW6-4: ON, SW6-5 60Pa compatible: O, 30Pa compatible: ON ooling mode: 10 ~ 52 ooling mode: 21 ~ 43 5

6 5. onfirmation of parts attaced Tis unit includes te following parts. Please ceck. or usage metods, refer to item No. 1onnecting pipe I ø19.05, O ø22.2 <Gas side> 2onnecting pipe I ø25.4, O ø22.2 <Gas side> 3onnecting elbow I ø28.58, O ø28.58 <Gas side> 4onnecting pipe I ø9.52, O ø9.52 <Liquid side> 5onnecting pipe I ø9.52, O ø12.7 <Liquid side> 6onnecting pipe I ø12.7, O ø12.7 <Liquid side> 7onnecting pipe I ø12.7, O ø9.52 <Liquid side> 8onnecting pipe I ø15.88, O ø15.88 <Liquid side> 9onnecting pipe I ø15.88, O ø12.7 <Liquid side> P P P P P P P Space required around unit 1 In case of single installation Secure enoug space around te unit as sown in te fi gure. If te wall eigt exceeds te eigt limit, widen te space labeled "L" and "W" by te amount tat exceeds te limit (labeled <> in te fi gure). [ig ] (1) Walls are lower tan te eigt limit. W Sould be sorter tan te unit eigt W Sould be sorter tan te unit eigt 450 L 500 ondition L W Minimum space beind te unit Minimum space on bot sides of te unit (2) If te wall eigt (H) of te front, rear or side exceeds te wall eigt restriction W Sould be sorter tan te unit eigt W Sould be sorter tan te unit eigt L 500 W Sould be sorter tan te unit eigt W Sould be sorter tan te unit eigt L 500 W Sould be sorter tan te unit eigt W Sould be sorter tan te unit eigt 500 L ondition L W Minimum space beind te unit Minimum space on bot sides of te unit (3) If tere are obstacles at te upper part of te unit ir defl ector grills (fi eld supplied) (Unit : mm) 6

7 2 In case of collective installation and continuous installation Wen multiple units are installed adjacent to eac oter, secure enoug space to allow for air circulation and passageways between groups of units as sown in te figures. * Leave bot sides of eac group of units open. s wit single installation, if te wall eigt exceeds te eigt limit, widen te space in te front and te back of a given group of units by te amount tat exceeds te limit (labeled <> in te figure). If tere is a wall at bot te front and te rear of te unit, install up to six units (tree units : P500) consecutively in te side direction and provide a space of 1000 mm or more as inlet space/passage space for eac six units (tree units : P500). [ig ] (1) Side-by-side installation <Te space on bot sides of a given group of units is minimum.> <Te space on bot sides of a given group of units is minimum.> * Unit eigt Unit eigt * * * (2) ace-to-face installation <Tere are walls in te front and te back of a given group of units.> <Tere is a wall on one side.> * Unit eigt 450 Unit eigt 450 * (3) ombination of face-to-face and side-by-side installations <Tere are walls in te front and te back of a given group of units.> <Tere is a wall on one side and eiter te front or te back of a given group of unit.> Unit eigt * * 900 * * (Unit : mm) 7

8 7. Lifting metod [ig ] 1 P200 ~ P300 3 P500 Slings (Min. 8 m x 2) 40 an guard Slings (Min. 8m x 2) 40 an guard 50 mm or ticker protective pads (two eac in te front and back) 50 mm or ticker protective pads (two eac in te front and back) Protective pads (two eac in te front and back) Protective pads (two eac in te front and back) 2 P350 ~ P450 Slings (Min. 8m x 2) 50 mm or ticker protective pads (two eac in te front and back) Protective pads (two eac in te front and back) Sling oles (two eac in te front and back) 40 an guard Sling oles (two eac in te front and back) Use suspension ropes tat will witstand te weigt of te unit. Wen moving te unit, use a 4-point suspension, and avoid giving impacts to te unit (o not use 2-point suspension). Place protective pads on te unit were it comes in contact wit te ropes to protect te unit from being scratced. Use a 50 mm or ticker cardboard or clot as a protective pad on te top of te unit to prevent contact between te fan guard and slings. Set te angle of roping at 40 or less. Use 2 ropes tat are eac longer tan 8 m. aution: e very careful wen carrying/moving te product. - Wen installing te outdoor unit, suspend te unit at te specifi ed location of te unit base. Stabilize as necessary so tat it does not move to te side and support it at 4 points. If te unit is installed or suspended wit 3-point support, te unit may become unstable and fall. Sling oles (two eac in te front and back) 8

9 8. Installation of unit 8.1. Installation [ig ] Witout detacable leg [ig ] 30 mm Outlet Inlet Inlet Inlet H M10 ancor bolt procured at te site orner is not seated. ixing bracket for te ole-in ancor bolt (3 locations to fi x wit screws) nti-vibration rubber Install it so tat te rubber covers te entire widt of te unit leg. ix unit tigtly wit bolts so tat unit will not fall down due to eartquakes or strong winds. Use concrete base or an angle bracket as te foundation of unit. Vibration may be transmitted to te installation section and noise and vibration may be generated from te fl oor and walls, depending on te installation conditions. Terefore, provide ample vibrationproofi ng (cusion pads, cusion frame, etc.). uild te foundation in suc way tat te corner of te installation leg is securely supported as sown in te fi gure. (ig ) Wen using a rubber isolating cusion, please ensure it is large enoug to cover te entire widt of eac of te unit's legs. If te corners are not fi rmly seated, te installation feet may be bent. Wen using cusion pads, be sure tat te full widt of te unit is covered. Te projecting lengt of te ancor bolt sould be less tan 30 mm. Post-installed ancor bolts (i.e., bolts not fi rmly cemented into te base) are not compatible wit tis product unless fi xing brackets are fi rst mounted on te four locations (six locations: P500). In abnormally ars environments suc as cold and/or windy areas, suffi cient countermeasures to guard against excessive wind and snow sould be taken to ensure te unit's correct operation. Wen te unit is expected to operate in cooling mode in conditions under 10, in snowy areas, in environments subject to strong winds or rain, install air inlet and outlet ducting as sown in [ig ]. Note: 1. Heigt of frame base for snow damage prevention (H) sall be twice as ig as expected snowfall. Widt of frame base sall not exceed tat of te unit. Te frame base sall be made of angle steel, etc., and designed so tat snow and wind slip troug te structure. (If frame base is too wide, snow will be accumulated on it.) 2. Install unit so tat wind will not directly las against openings of inlet and outlet ducts. 3. uild frame base at customer referring to tis fi gure. Material : Galvanized steel plate 1.2T Painting : Overall painting wit polyester powder olor : Munsell 5Y8/1 (same as tat of unit) 4. Wen te unit is used in a cold region and te eating operation is continuously performed for a long time wen te outside air temperature is below freezing, install a eater to te unit base or take oter appropriate measures to prevent water from freezing on te base. Warning: e sure to install unit in a place strong enoug to witstand its weigt. ny lack of strengt may cause unit to fall down, resulting in a personal injury. Have installation work in order to protect against strong winds and eartquakes. ny installation deficiency may cause unit to fall down, resulting in a personal injury. Wen building te foundation, give full attention to te fl oor strengt, drain water disposal <during operation, drain water fl ows out of te unit>, and piping and wiring routes. Precautions wen routing te pipes and wires below te unit Wen routing te pipes and wires below te unit, be sure tat te foundation and base work do not block te base troug-oles. lso make sure te foundation is at least 100 mm ig so tat te piping can pass under te unit. 9

10 9. Refrigerant piping installation Te pipe is connected via a terminal-branc type connection in wic refrigerant piping from te outdoor unit is branced at te terminal and is connected to eac of te indoor units. Te metod of pipe connection is as follows: fl are connection for te indoor units, gas pipes and liquid pipes for outdoor units, brazed connection. Note tat te branced sections are brazed. Warning: o not use refrigerant oter tan te type indicated in te manuals provided wit te unit and on te nameplate. - oing so may cause te unit or pipes to burst, or result in explosion or fi re during use, during repair, or at te time of disposal of te unit. - It may also be in violation of applicable laws. - MITSUISHI ELETRI ORPORTION cannot be eld responsible for malfunctions or accidents resulting from te use of te wrong type of refrigerant. lways use extreme care to prevent te refrigerant gas from leaking wile using fire or flame. If te refrigerant gas comes in to contact wit a flame from any source, suc as a gas stove, it breaks down and generates a poisonous gas wic can cause gas poisoning. Never weld in an unventilated room. lways conduct an inspection for gas leakage after installation of te refrigerant piping as been completed aution Tis unit uses refrigerant R410. ollow te local regulations on materials and pipe tickness wen selecting pipes. (Refer to te table on te rigt.) 1 Use te following materials for refrigeration piping. Material: Use copper alloy seamless pipes made of posporus deoxidized copper. Ensure te inner and outer surfaces of te pipes are clean and free from azardous sulfur, oxide, dusts, saving particles, oils, and moisture (contamination). Size: Refer to item 9.2. for detailed information on refrigerant piping system. 2 lways observe te restrictions on te refrigerant piping (suc as rated lengt, eigt difference, and piping diameter) to prevent equipment failure or a decline in eating/cooling performance. 3 rancing cannot be made after eader brancing (corresponding parts are marked wit in te diagram below). 4 o not install outdoor unit piping wen it is raining. To te outdoor unit To te outdoor unit P 5 ommercially available piping often contains dust and oter materials. lways blow it clean wit a dry inert gas. 6 Use care to prevent dust, water or oter contaminants from entering te piping during installation. 7 Reduce te number of bending portions as muc as possible, and make bending radius as big as possible. 8 or indoor and outdoor brancing, be sure to use te following twinning pipe sets in te table 1 (sold separately). 9 Use an adapter if a specifi ed refrigerant pipe as a different diameter from tat of a brancing pipe. 0 raze only wit non-oxide brazing material for piping. ailure to do so may damage te compressor. e sure to perform te non-oxidation brazing wit a nitrogen purge. o not use any commercially available anti-oxidizing agent since it may cause pipe corrosion and degrading of te refrigerant oil. Please contact Mitsubisi Electric for more details. (Refer to item for details of te piping connection and valve operation) a lways insulate te piping properly. Insuffi cient insulation will result in a decline in eating/cooling performance, water drops from condensation forming and oter suc problems. (Refer to item 10.4 for termal insulation of refrigerant piping.) b Wen connecting te refrigerant piping, make sure te valve of te outdoor unit is completely closed (te factory setting). o not operate it until te refrigerant piping for te outdoor and indoor units as been connected, a refrigerant leakage test as been performed, and te evacuation process as been completed. c Never use refrigerant to perform an air purge. lways evacuate using a vacuum pump. d e sure to carge te system using liquid refrigerant. e Eiter a lack or an excess of refrigerant causes te unit to make an emergency stop. arge te system wit an appropriate amount of refrigerant. Wen servicing, always ceck te notes concerning pipe lengt and amount of additional refrigerant at bot locations, te refrigerant volume calculation table on te back of te service panel and te additional refrigerant section on te labels for te combined number of indoor units. (Refer to item 9.2. for detailed information on refrigerant piping system.) opper pipe size and radial tickness for R410 ITY MULTI. Size (mm) Size (inc) Radial tickness (mm) Pipe type ø6.35 ø1/4" 0.8 Type-O ø9.52 ø3/8" 0.8 Type-O ø12.7 ø1/2" 0.8 Type-O ø15.88 ø5/8" 1.0 Type-O *ø19.05 ø3/4" 1.2 Type-O *ø19.05 ø3/4" 1.0 Type-1/2H or H ø22.2 ø7/8" 1.0 Type-1/2H or H ø25.4 ø1" 1.0 Type-1/2H or H ø28.58 ø1-1/8" 1.0 Type-1/2H or H ø31.75 ø1-1/4" 1.1 Type-1/2H or H ø34.93 ø1-3/8" 1.2 Type-1/2H or H ø41.28 ø1-5/8" 1.4 Type-1/2H or H * ot pipe types can be used for pipe size ø19.05 for R410 air conditioner. <Table 1> Lower steram unit model Less tan 200 in total Lower steram unit model More tan 201 and less tan 400 in total Line branc Lower steram unit model More tan 401 and less tan 650 in total Indoor twinning pipe set model Lower steram unit model More tan 651 in total Header branc 4 brances 8 brances 10 brances MY-Y102SS-G2 MY-Y102LS-G2 MY-Y202S-G2 MY-Y302S-G2 MY-Y104-G MY-Y108-G MY-Y1010-G Outdoor Twinning Kit model PUY-P-YSK PUY-EP-YSK Total outdoor model P550 ~ P650 Total outdoor model P700 ~ P1000 Total outdoor model P1050 ~ P1350 Total outdoor model EP400 ~ EP650 Total outdoor model EP700 Total outdoor model EP750 ~ P1100 MY-Y100VK3 MY-Y200VK2 MY-Y300VK3 MY-Y100VK3 MY-Y200VK2 MY-Y300VK3 10

11 Warning: Wen installing and moving te unit, do not carge te system wit any oter refrigerant oter tan te refrigerant specified on te unit. - Mixing of a different refrigerant, air, etc. may cause te refrigerant cycle to malfunction and may result in severe damage. aution: Use a vacuum pump wit a reverse flow ceck valve. - If te vacuum pump does not ave a reverse fl ow ceck valve, te vacuum pump oil may fl ow back into te refrigerant cycle and cause deterioration of te refrigerant oil. o not use te tools sown below used wit conventional refrigerant. (Gauge manifold, carge ose, gas leak detector, ceck valve, refrigerant carge base, vacuum gauge, refrigerant recovery equipment) - Mixing of conventional refrigerant and refrigerant oil may cause te refrigerant oil to deteriorate. - Mixing of water will cause te refrigerant oil to deteriorate. - R410 refrigerant does not contain any clorine. Terefore, gas leak detectors for conventional refrigerants will not react to it. Manage te tools used for R410 more carefully tan normal. - If dust, dirt, or water gets in te refrigerant cycle, te refrigerant oil will deteriorate. Never use existing refrigerant piping. - Te large amount of clorine in conventional refrigerant and refrigerant oil in te existing piping will cause te new refrigerant to deteriorate. Store te piping to be used during installation indoors and keep bot ends of te piping sealed until just before brazing. - If dust, dirt, or water gets into te refrigerant cycle, te oil will deteriorate and te compressor may fail. o not use a carging cylinder. - Using a carging cylinder may cause te refrigerant to deteriorate. o not use special detergents for wasing piping Refrigerant piping system onnection Example [ig ] [Outdoor model : P200 ~ P500YK] [Outdoor model : P550 ~ P1000YSK, EP400 ~ EP700YSK] unit 1 unit 2 unit 1 unit 2 E E [Outdoor model : P1050 ~ P1350YSK, EP750 ~ EP1100YSK] unit 1 unit 2 unit 3 unit 1 unit 2 unit 3 E E E E Outdoor unit 1st branc Indoor unit ap E Outdoor Twinning Kit Header * Te total lengt of 1 (2), 3 and 4 is less tan 10 m. 11

12 PUY-P-Y(S)K Outdoor model (Unit: mm) Unit ombination 1 *3 2 *3 3 *3 4 Unit 1 Unit 2 Unit 3 Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe P200 YK ø9.52 ø P250 YK *1 ø9.52 ø P300 YK *2 ø9.52 ø P350 YK ø12.7 ø P400 YK ø12.7 ø P450 YK ø15.88 ø P500 YK ø15.88 ø P550 YSK P300 P250 - ø15.88 ø28.58 ø12.7 ø22.2 ø9.52 ø P600 YSK P350 P250 - ø15.88 ø28.58 ø12.7 ø28.58 ø9.52 ø P650 YSK P400 P250 - ø15.88 ø28.58 ø15.88 ø28.58 ø9.52 ø P700 YSK P450 P250 - ø19.05 ø34.93 ø15.88 ø28.58 ø9.52 ø P750 YSK P450 P300 - ø19.05 ø34.93 ø15.88 ø28.58 ø12.7 ø P800 YSK P400 P400 - ø19.05 ø34.93 ø15.88 ø28.58 ø15.88 ø P850 YSK P450 P400 - ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø P900 YSK P450 P450 - ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø P950 YSK P500 P450 - ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø P1000 YSK P500 P500 - ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø P1050 YSK P450 P300 P300 ø19.05 ø41.28 ø15.88 ø28.58 ø12.7 ø22.2 ø12.7 ø22.2 ø19.05 ø34.93 P1100 YSK P450 P350 P300 ø19.05 ø41.28 ø15.88 ø28.58 ø12.7 ø28.58 ø12.7 ø22.2 ø19.05 ø34.93 P1150 YSK P350 P400 P400 ø19.05 ø41.28 ø12.7 ø28.58 ø15.88 ø28.58 ø15.88 ø28.58 ø19.05 ø34.93 P1200 YSK P400 P400 P400 ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø28.58 ø15.88 ø28.58 ø19.05 ø34.93 P1250 YSK P450 P400 P400 ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø28.58 ø15.88 ø28.58 ø19.05 ø34.93 P1300 YSK P450 P450 P400 ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø28.58 ø15.88 ø28.58 ø19.05 ø34.93 P1350 YSK P450 P450 P450 ø19.05 ø41.28 ø15.88 ø28.58 ø15.88 ø28.58 ø15.88 ø28.58 ø19.05 ø34.93 PUY-EP-Y(S)K (Unit: mm) Outdoor Unit ombination 1 *3 2 *3 3 *3 4 model Unit 1 Unit 2 Unit 3 Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe Liquid pipe Gas pipe EP400 YK P200 P200 - ø12.7 ø28.58 ø9.52 ø22.2 ø9.52 ø EP450 YK P250 P200 - ø15.88 ø28.58 ø9.52 ø22.2 ø9.52 ø EP500 YK P250 P250 - ø15.88 ø28.58 ø9.52 ø22.2 ø9.52 ø EP650 YSK P350 P300 - ø15.88 ø28.58 ø12.7 ø28.58 ø12.7 ø EP700 YSK P350 P350 - ø19.05 ø34.93 ø12.7 ø28.58 ø12.7 ø EP750 YSK P350 P200 P200 ø19.05 ø34.93 ø12.7 ø28.58 ø9.52 ø22.2 ø9.52 ø22.2 ø19.05 ø34.93 EP800 YSK P350 P250 P200 ø19.05 ø34.93 ø12.7 ø28.58 ø9.52 ø22.2 ø9.52 ø22.2 ø19.05 ø34.93 EP850 YSK P350 P250 P250 ø19.05 ø41.28 ø12.7 ø28.58 ø9.52 ø22.2 ø9.52 ø22.2 ø19.05 ø34.93 EP900 YSK P350 P300 P250 ø19.05 ø41.28 ø12.7 ø28.58 ø12.7 ø22.2 ø9.52 ø22.2 ø19.05 ø34.93 EP950 YSK P350 P300 P300 ø19.05 ø41.28 ø12.7 ø28.58 ø12.7 ø22.2 ø12.7 ø22.2 ø19.05 ø34.93 EP1000 YSK P350 P350 P300 ø19.05 ø41.28 ø12.7 ø28.58 ø12.7 ø28.58 ø12.7 ø22.2 ø19.05 ø34.93 EP1050 YSK P350 P350 P350 ø19.05 ø41.28 ø12.7 ø28.58 ø12.7 ø28.58 ø12.7 ø28.58 ø19.05 ø34.93 EP1100 YSK P400 P350 P350 ø19.05 ø41.28 ø15.88 ø28.58 ø12.7 ø28.58 ø12.7 ø28.58 ø19.05 ø34.93 *1 Use te ø12.7 pipe if te piping lengt from te outdoor unit to te fartest indoor unit is 90 m or longer. *2 Use te ø12.7 pipe if te piping lengt from te outdoor unit to te fartest indoor unit is 40 m or longer. *3 Te pipe sizes listed in columns 1 to 3 in tis table correspond to te sizes for te models listed in te unit 1, 2, and 3 columns. Wen te order of te models for unit 1, 2, and 3 cange, make sure to use te appropriate pipe size. *4 90 m is available. Wen te piping lengt exceeds 40 m, use one size larger liquid pipe starting wit te section of piping were 40 m is exceeded and all piping after tat point. *5 Wen te eigt difference between te indoor units is 15 m or greater ( 30 m), use te one size larger liquid pipe for te indoor unit (lower side).,, (Unit: mm) Total capacity of indoor units Liquid pipe Gas pipe ~ 140 ø9.52 ø ~ 200 ø9.52 ø ~ 300 ø9.52 ø ~ 400 ø12.7 ø ~ 650 ø15.88 ø ~ 800 ø19.05 ø ~ ø19.05 ø41.28 a,b,c,d,e (Unit: mm) Model number Liquid pipe Gas pipe 20, 25, 32, 40, 50 ø6.35 ø , 71, 80, 100, 125, 140 ø9.52 ø ø9.52 ø ø9.52 ø rancing eader (ownstream unit model total 200) 8-rancing eader (ownstream unit model total 400) 10-rancing eader (ownstream unit model total 650) MY-Y104-G MY-Y108-G MY-Y1010-G Outdoor model P550 ~ P650 P700 ~ P1000 P1050 ~ P1350 Outdoor model EP400 ~ EP650 EP700 EP750 ~ EP1100 Outdoor twinning kit MY-Y100VK3 MY-Y200VK2 MY-Y300VK3 Outdoor twinning kit MY-Y100VK3 MY-Y200VK2 MY-Y300VK3 ownstream unit model total Joint ~ 200 MY-Y102SS-G2 201 ~ 400 MY-Y102LS-G2 401 ~ 650 MY-Y202S-G2 651 ~ MY-Y302S-G2 Wen connecting a unit wit a capacity index of between P200 and P300, install a branc joint (MY-Y102LS-G2) at te fi rst branc. Wen connecting a unit wit a capacity index of between P350 and (E)P400, install a branc joint (MY-Y102LS-G2 or MY-Y202S-G2) at te fi rst branc. Wen connecting a unit wit a capacity index of between (E)P450 and (E)P650, install a branc joint (MY-Y202S-G2) at te fi rst branc. Wen connecting a unit wit a capacity index of (E)P700 and above, install a branc joint (MY-Y302S-G2) at te fi rst branc. Te total indexes of all units in te downstream of one of te brances must be 650 or less. If te total indexes of all units in te downstream of bot brances exceed 650, install two branc joints sequentially. 12

13 Precautions for outdoor unit combinations Refer to [ig ] for te positioning of twinning pipes. [ig ] <> Install te piping so tat oil will not accumulate in te stopped outdoor unit. unit 1 unit 2 unit 3 unit 1 unit 2 unit 3 1. Te NG example sows tat oil accumulates because te units are installed on a reverse gradient wile unit 1 is in operation, and unit 3 is stopped. unit 1 unit 2 unit 3 2. unit 1 unit 2 unit 3 unit 1 unit 2 unit = 0.2 m max 1 > 0.2 m Te NG example sows tat oil accumulates into units 1 and 2 wile unit 3 is in operation, and units 1 and 2 are stopped. Vertical pipe eigt (1) sould be 0.2 m or below. 1 unit 2 unit 3 unit 2 unit 3 3. unit 1 unit = 0.1 m max 2 2 > 0.1 m Te NG example sows tat oil accumulates into unit 1 wile unit 3 is in operation, and unit 1 is stopped. ifference between unit and unit in eigt (2) sould be 0.1 m or below. unit 1 unit 2 unit 1 unit = 0.1 m max 2 unit 3 2 > 0.1 m 2 unit 3 Te NG example sows tat oil accumulates into unit 3 wile unit 1 is in operation, and unit 3 is stopped. ifference between unit and unit in eigt (2) sould be 0.1 m or below. <> Wen te piping on te outdoor unit side (from te twinning pipe) exceeds 2 m, ensure a trap (gas pipe only) witin 2 m. Make sure te eigt of te trap is 200 mm or more. If tere is no trap, oil can accumulate inside te pipe, causing a sortage of oil and may damage te compressor. 2 m E aution: o not install traps oter tan te ones between outdoor units described on a separate seet to prevent oil backflow and compressor start-up failure. o not install solenoid valves to prevent oil backflow and compressor start-up failure. o not install a sigt glass because it may sow improper refrigerant flow. If a sigt glass is installed, inexperienced tecnicians tat use te glass may overcarge te refrigerant. 13

14 <> Slope of twinning pipes Make sure te slope of te twinning pipes are at an angle witin ±15 to te ground. If te slope exceeds te specifi ed angle, te unit may be damaged. ±15 G <> Pipe connection example H I H J ownward slope Upward slope Indoor unit Trap (gas pipe only) E Witin 2 m Twinning pipe G Slope of te twinning pipes are at an angle witin ±15 to te ground H Pipes on site I Twinning Kit J Straigt run of pipe tat is 500 mm or more 10. dditional refrigerant carge t te time of sipping, te outdoor unit is carged wit refrigerant. Tis carge does not include te amount needed for extended piping and additional carging of eac refrigerant line will be required on site. In order tat future servicing may be properly provided, always keep a record of te size and lengt of eac refrigerant line and te amount of additional carge by writing it in te space provided on te outdoor unit alculation of additional refrigerant carge alculate te amount of additional carge based on te lengt of te piping extension and te size of te refrigerant line. Use te table below as a guide for calculating te amount of additional carging and ten carge te system accordingly. If te calculation results in a fraction of less tan 0.1 kg, round up to te next 0.1 kg. or example, if te result of te calculation was kg, round te result up to 12.4 kg. <dditional carge> dditional Total lengt of Total lengt of Total lengt of refrigerant carge liquid pipe sized liquid pipe sized liquid pipe sized = + ø19.05 mm ø15.88 mm + ø12.7 mm (kg) [oz] (m) 0.29 (kg/m) (m) 0.2 (kg/m) (m) 0.12 (kg/m) + + Total lengt of liquid pipe sized ø9.52 mm (m) 0.06 (kg/m) + Total lengt of liquid pipe sized ø6.35 mm (m) (kg/m) dditional carge Outdoor unit model arged amount P200 - P250 - P300 - P kg P kg P kg P kg <Example> Indoor 1: 125 : ø12.7 mm 40 m a : ø9.52 mm 10 m 2: 100 : ø9.52 mm 10 m b : ø9.52 mm 5 m 3: 40 : ø9.52 mm 15 m c : ø6.35 mm 10 m 4: 32 : ø9.52 mm 10 m d : ø6.35 mm 10 m 5: 64 e : ø9.52 mm 10 m + α t te conditions below: Te total lengt of eac liquid line is as follows: ø12.7 mm: = 40 m = 40 m ø9.52 mm: a + b + e = 10 m + 15 m + 10 m + 10 m + 5 m + 10 m = 60 m ø6.35 mm: c + d = 10 m + 10 m = 20 m Terefore, <alculation example> dditional refrigerant carge = 40 m 0.12 kg/m + 60 m 0.06 kg/m + 20 m kg/m kg = 12.4 kg *Wen connecting one or more PEY-P20VM2-E units, add 0.28 kg of refrigerant for eac of tese units. Value of α Total capacity of connecting indoor units α Models ~ kg Models 81 ~ kg Models 161 ~ kg Models 331 ~ kg Models 391 ~ kg Models 481 ~ kg Models 631 ~ kg Models 711 ~ kg Models 801 ~ kg Models 891 ~ kg Models 1071 ~ kg Models 1251 ~ 14.0 kg <mount of factory carged refrigerant> Outdoor unit model arged amount P kg P kg P kg P kg P kg P kg P kg 14

15 10.2. Precautions concerning piping connection and valve operation Warning: Te sections between te refrigerant service valves and te pinced connecting pipes are filled wit gas and refrigerant oil. Extract te gas and refrigerant oil in te above-mentioned pipe section before eating te brazed section to remove te refrigerant service valve pinced connecting pipe. - If te brazed section is eated witout first extracting te gas and refrigerant oil, te pipe may burst or te pinced connecting pipe may blow off and ignite te refrigerant oil, causing serious injury. 1 eck tat te refrigerant service valve is fully closed (turned clockwise all te way). 2 onnect a carging ose to te service port on te liquid/gas refrigerant service valve, and extract te gas in te pipe section between te refrigerant service valve and te pinced connecting pipe. Place a wet towel on te refrigerant service valve before eating te brazed section to keep te temperature of te valve from exceeding 120. irect te flame away from te wiring and metal seets inside te unit to prevent eat damage. onduct piping connection and valve operation accurately and carefully. Removing te pinced connecting pipe Wen sipped, a pinced connecting pipe is attaced to te on-site liquid and gas valves to prevent gas leakage. Take te following steps 1 troug 4 to remove te pinced connecting pipe before connecting refrigerant pipes to te outdoor unit. 3 fter vacuuming gas from te pinced connecting pipe, sever te pinced connecting pipe at te location sown in [ig ] and drain te refrigerant. 4 fter completing 2 and 3 eat te brazed section to remove te pinced connecting pipe. [ig ] P200, P250, P300 <> P350, P400, P450, P500 <> G E E G <> <> O S aution: aution: o not vent R410 into te atmospere. Refrigerant pipe connection Tis product needs connecting pipes for front piping and bottom post-piping. (Refer to [ig ]) eck te liquid/gas piping dimensions before connecting te refrigerant pipe. Refer to te table below for piping dimensions. Make sure tat te refrigerant pipe is not toucing oter refrigerants pipes, unit panels, or base plates. e sure to use non-oxidative brazing wen connecting pipes. e careful not to burn te wiring and plate wen brazing. <Refrigerant piping connection examples> [ig ] <> <> <> <> <> <> <> Refrigerant service valve (liquid side/brazed type) <> Refrigerant service valve (gas side/brazed type) Saft ully closed at te factory, wen connecting te piping, and wen vacuuming. Open fully after tese operations are completed. <Wen opening> Turn te saft counterclockwise wit a exagonal wrenc. Turn around te saft until it stops. <Wen closing> Turn te saft clockwise wit a exagonal wrenc. Turn around te saft until it stops. Saft ully closed at te factory, wen connecting te piping, and wen vacuuming. Open fully after tese operations are completed. <Wen opening> Turn te saft counterclockwise. Turn around te saft until it stops. <Wen closing> Turn te saft clockwise. Turn around te saft until it stops. Stopper pin Prevents te saft from turning 90 or more. Service port vailable for gas venting of te pinced connecting pipe, or vacuuming in te refrigerant pipes on te site. E ap Remove te cap before operating te saft. e sure to return it to te original position after completing te operation. Pinced connecting pipe severing portion G Pinced connecting pipe brazing portion <E> Severing portion referral figue * Use a pipe cutter to sever. <> <> <E> ront pipe routing Liquid side Severing portion referral figue Refrigerant service valve piping Severing portion <> ottom pipe routing <> Gas side 75mm (reference measurement) Refrigerant service valve side (Unit: mm) Model P200 P250 P300 P350 P400 P450 P500 iameter Refrigerant pipe Liquid Gas ø9.52 razed ø9.52 razed ø22.2 razed (ø12.7 razed) *1 ø9.52 razed (ø12.7 razed) *2, *3 ø12.7 razed ø12.7 razed (ø15.88 razed) *3 ø28.58 razed Service valve Liquid Gas ø19.05 ø9.52 ø25.4 ø12.7 ø15.88 ø28.58 ø15.88 razed *1 urtest piping lengt (OU from IU) 90m *2 urtest piping lengt (OU from IU) 40m *3 Indicates dimensions and connection specifications in te case te unit is used in combination wit oter outdoor units. 15