Side blow VRF. Engineering Data Book. Outdoor units E Model name: MCY-MHP0404HT-E MCY-MHP0504HT-E MCY-MHP0604HT-E

Transcription

1 E Model name: MCY-MHP0404HT-E MCY-MHP0504HT-E MCY-MHP0604HT-E Side blow VRF Engineering Data Book Outdoor units Notice: Toshiba is committed to continuously improving its products to ensure the highest quality and reliability standards, and to meet local regulations and market requirements. All features and specifications are subject to change without prior notice.

2 Side blow VRF Data book Contents Safety caution System overview Allocation standard of model name Summary of system equipments Equipment selection procedure Selection flow chart Combination conditions for indoor unit and outdoor unit Cooling / heating capacity characteristics Operational temperature range Refrigerant piping design Free branching system Allowable length / height difference of refrigerant piping Selection of refrigerant piping Allowable length / height difference of refrigerant piping with PMV Kit Selection of refrigerant piping with PMV Kit Charging requirement with additional refrigerant Wiring design General Electrical wiring design Outdoor unit power supply Indoor unit power supply Design of control wiring Outdoor unit Specifications Dimensional drawing Branch header / branch joint Refrigerant cycle diagram Wiring diagram Connecting diagram Optional printed circuit board (PCB) of outdoor unit Part load performance Sound pressure level data PMV Kit

3 Side blow VRF Data book Safety caution Before use, read carefully through the Safety caution section to ensure correct operation. The important contents concerned to the safety are described in the Safety cautions. Be sure to keep them. For Indications and their meanings, see the following description. Warning Indications on the Air Conditioner Unit Warning indication WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies WARNING Description ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing. WARNING Moving parts. Do not operate unit with grille removed. WARNING Moving parts. Do not operate unit with grille removed. Stop the unit before the servicing. CAUTION High temperature parts. You might get burned when removing this panel. CAUTION High temperature parts. You might get burned when removing this panel. CAUTION Do not touch the aluminum fins of the unit. Doing so may result in injury. CAUTION Do not touch the aluminium fins of the unit. Doing so may result in injury. CAUTION BURST HAZARD Open the service valves before the operation, CAUTION BURST HAZARD Open the service valves before the operation, otherwise there might be the burst. CAUTION Do not climb onto the fan guard. Doing so may result in CAUTION Do not climb onto the fan guard. Doing so may result in injury. 2

4 Safety caution Explanation of indications WARNING Indicates possibilities that a death or serious injury of personnel is caused by an incorrect handling. CAUTION Indicates contents that an injury (* 1 ) or property damage (* 2 ) only may be caused when an incorrect work has been executed. *1: Injury means a hurt, a burn, or an electric shock which does not require hospitalization or a long-term going to the hospital. *2: Property damage means an enlarged damage concerned to property, or breakage of materials. After installation work has finished, check there is no trouble by a test operation, and explain using method and maintenance method to the customers based on the Owner s Manual. Please ask the customers to keep this Installation Manual together with the Owner s Manual. WARNING Ask a shop or a professional dealer to install the air conditioner. If you will install by yourself, a fire, an electric shock, or water leak is caused. Take measures so that the refrigerant does not exceed the limit concentration even if it leaks when installing the air conditioner in a small room. For the measures not to exceed the limit of concentration, contact the dealer. If the refrigerant leaks and it exceeds the limit of concentration, an accident of oxygen shortage is caused. Install the air conditioner at a place which is satisfactorily bearable to weight. If strength is insufficient, the unit may fall down resulting in human injury. Perform a specified installation work against a strong wind such as typhoon or earthquake. If the air conditioner is imperfectly installed, an accident by falling or dropping may be caused. If refrigerant gas leaks during installation work, ventilate the room. If the leaked refrigerant gas approaches to fire, noxious gas may generate. After installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks in the room, and approaches to fire such as fan heater, stove or kitchen range, generation of noxious gas may be caused. Never recover refrigerant in the outdoor unit. Be sure to use a refrigerant recovery device to recover refrigerant in reinstallation or repair work. Recovery of refrigerant in the outdoor unit is unavailable; otherwise a serious accident such as crack or human injury is caused. A person qualified for the electric work should deal with the electric construction conforming to the regulations of the local electric company and the Installation Manual. Be sure to use the exclusive circuit. If there is capacity shortage of the power supply circuit or incomplete installation, a fire or an electric shock is caused. For cabling, use the specified cables and connect them securely so that external force of cable does not transmit to the terminal connecting section. If connection or fixing is incomplete, a fire, etc. may be caused. Be sure to connect earth wire. Do not connect earth wire to gas pipe, water pipe, lightning rod, nor earth wire of telephone. If grounding is incomplete, an electric shock is caused. CAUTION Do not install the air conditioner at a place where combustible gas may leak. If gas leaks and is collected at surrounding the unit, the production of fire may be caused. Be sure to attach an earth leakage breaker; otherwise an electric shock may be caused. Using a torque wrench, tighten the flare nut in the specified method. If the flare nut is exceedingly tightened, the flare nut is broken and a refrigerant leakage may be caused after a long time has passed. 3

5 Safety caution WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit Important The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit. The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R410A is almost nonexistent. With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The concentration is as given below. Total amount of refrigerant (kg) Min. volume of the indoor unit installed room (m 3 ) Concentration limit (kg/m 3 ) The concentration limit of R410A which is used in multi air conditioners is 0.3 kg/m 3. NOTE 1: If there are 2 or more refrigerating systems in a single refrigerating device, the amounts of refrigerant should be as charged in each independent device. e.g., charged amount (10 kg) Outdoor unit e.g., charged amount (15 kg) Room A Room B Room C Room D Room E Room F Indoor unit For the amount of charge in this example: The possible amount of leaked refrigerant gas in rooms A, B and C is 10 kg. The possible amount of leaked refrigerant gas in rooms D, E and F is 15 kg. NOTE 2: The standards for minimum room volume are as follows. (1) No partition (shaded portion) (2) When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15 % or larger than the respective floor spaces at the top or bottom of the door). Outdoor unit Refrigerant piping Indoor unit (3) If an indoor unit is installed in each partitioned room and the refrigerant tubing is interconnected, the smallest room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object. Very small room Small room Medium room Refrigerant piping Large room Outdoor unit Indoor unit Mechanical ventilation device - Gas leak detector NOTE 3: The minimum indoor floor area compared with the amount of refrigerant is roughly as follows: (When the ceiling is 2.7 m high) m² 35 Min. indoor floor area Range below the density limit of 0.3 kg/m 3 (countermeasures not needed) Range above the density limit of 0.3 kg/m 3 (countermeasures needed) Total amount of refrigerant kg 4

6 Side blow VRF Data book 1 System overview 1-1. Allocation standard of model name MCY _ M HP H T J _ E 1-2. Summary of system equipments Outdoor units E : Europe, corresponding to European standard model J : Anti-corrosion heavy protection T : Capacity variable unit H : Heat pump Development series number Capacity Hangzhi products R410A M : Single module unit Multi Compact Type Corresponding HP Inverter unit 4HP 5HP 6HP Model name MCY-MHP0404HT-E MCY-MHP0504HT-E MCY-MHP0604HT-E Cooling capacity * Heating capacity * No. of connectable indoor units *1 Rated conditions Cooling : Indoor air temperature 27 C DB / 19 C WB. Outdoor air temperature 35 C DB. Heating : Indoor air temperature 20 C DB. Outdoor air temperature 7 C DB / 6 C WB. 5

7 1 System overview Indoor units 4-way Air Discharge Cassette Type Type Appearance Model name Capacity rank Capacity code Compact 4-way Cassette ( ) Type 2-way Air Discharge Cassette Type 1-way Air Discharge Cassette Type Concealed Duct Type Concealed Duct High Static Pressure Type Cooling capacity Heating capacity PMV Kit MMU-AP0092H 009 type MMU-AP0122H 012 type MMU-AP0152H 015 type MMU-AP0182H 018 type MMU-AP0242H 024 type MMU-AP0272H 027 type MMU-AP0302H 030 type MMU-AP0362H 036 type MMU-AP0482H 048 type MMU-AP0562H 056 type MMU-AP0094HP-E 009 type MMU-AP0124HP-E 012 type MMU-AP0154HP-E 015 type MMU-AP0184HP-E 018 type MMU-AP0244HP-E 024 type MMU-AP0274HP-E 027 type MMU-AP0304HP-E 030 type MMU-AP0364HP-E 036 type MMU-AP0484HP-E 048 type MMU-AP0564HP-E 056 type MMU-AP0054MH-E 005 type Available MMU-AP0074MH-E 007 type Available MMU-AP0094MH-E 009 type Available MMU-AP0124MH-E 012 type Available MMU-AP0154MH-E 015 type Available MMU-AP0184MH-E 018 type Available MMU-AP0072WH 007 type MMU-AP0092WH 009 type MMU-AP0122WH 012 type MMU-AP0152WH 015 type MMU-AP0182WH 018 type MMU-AP0242WH 024 type MMU-AP0272WH 027 type MMU-AP0302WH 030 type MMU-AP0362WH 036 type MMU-AP0482WH 048 type MMU-AP0562WH 056 type MMU-AP0074YH-E 007 type Available MMU-AP0094YH-E 009 type Available MMU-AP0124YH-E 012 type Available MMU-AP0154SH-E 015 type Available MMU-AP0184SH-E 018 type Available MMU-AP0244SH-E 024 type Available MMD-AP0076BHP-E 007 type Available MMD-AP0096BHP-E 009 type Available MMD-AP0126BHP-E 012 type Available MMD-AP0156BHP-E 015 type Available MMD-AP0186BHP-E 018 type Available MMD-AP0246BHP-E 024 type Available MMD-AP0276BHP-E 027 type Available MMD-AP0306BHP-E 030 type Available MMD-AP0366BHP-E 036 type Available MMD-AP0486BHP-E 048 type Available MMD-AP0566BHP-E 056 type Available MMD-AP0184H-E 018 type MMD-AP0244H-E 024 type MMD-AP0274H-E 027 type MMD-AP0364H-E 036 type MMD-AP0484H-E 048 type

8 1 System overview Type Appearance Model name Capacity rank Capacity code Cooling capacity Heating capacity PMV Kit MMD-AP0054SPH-E 005 type Available MMD-AP0074SPH-E 007 type Available MMD-AP0094SPH-E 009 type Available Slim Duct Type MMD-AP0124SPH-E 012 type Available MMD-AP0154SPH-E 015 type Available MMD-AP0184SPH-E 018 type Available MMD-AP0244SPH-E 024 type Available MMD-AP0274SPH-E 027 type Available MMC-AP0154H-E 015 type MMC-AP0184H-E 018 type MMC-AP0244H-E 024 type MMC-AP0274H-E 027 type MMC-AP0364H-E 036 type MMC-AP0484H-E 048 type Ceiling Type MMC-AP0157HP-E 015 type MMC-AP0187HP-E 018 type MMC-AP0247HP-E 024 type MMC-AP0277HP-E 027 type MMC-AP0367HP-E 036 type MMC-AP0487HP-E 048 type MMC-AP0567HP-E 056 type MMK-AP0073H 007 type Available MMK-AP0093H 009 type Available High-wall Type 3 series MMK-AP0123H 012 type Available MMK-AP0153H 015 type Available MMK-AP0183H 018 type Available MMK-AP0243H 024 type Available High-wall Type 4 series MMK-AP0074MH-E 007 type Available MMK-AP0094MH-E 009 type Available MMK-AP0124MH-E 012 type Available MML-AP0074BH-E 007 type MML-AP0094BH-E 009 type Floor Standing Concealed Type MML-AP0124BH-E 012 type MML-AP0154BH-E 015 type MML-AP0184BH-E 018 type MML-AP0244BH-E 024 type MML-AP0074H-E 007 type Available MML-AP0094H-E 009 type Available Floor Standing Cabinet Type MML-AP0124H-E 012 type Available MML-AP0154H-E 015 type Available MML-AP0184H-E 018 type Available MML-AP0244H-E 024 type Available MMF-AP0154H-E 015 type MMF-AP0184H-E 018 type MMF-AP0244H-E 024 type Floor Standing Type MMF-AP0274H-E 027 type MMF-AP0364H-E 036 type MMF-AP0484H-E 048 type MMF-AP0564H-E 056 type MML-AP0074NH-E 007 type Available MML-AP0094NH-E 009 type Available Console Type MML-AP0124NH-E 012 type Available MML-AP0154NH-E 015 type Available MML-AP0184NH-E 018 type Available 7

9 1 System overview Branching joints and headers Name Model name Appearance Remarks Y-shape branching joint RBM-BY55E 4-branching header 8-branching header RBM-HY1043E RBM-HY1083E PMV Kits Name Model name Appearance Remarks PMV Kits RBM-PMV0362E RBM-PMV0902E 8

10 1 System overview Remote controllers Name Model Name Remarks Wired remote controller Simple wired remote controller Wireless remote controller kit ON-OFF controller Central remote controller Schedule timer Remote controller with schedule timer (7-day timer function) Lite-Vision plus Remote Controller RBC-AMT32E RBC-AS41E2 RBC-AX32U(W)-E RBC-AX32U(WS)-E RBC-AX32CE2 B-AX33CE B-AX32E2 RBC-AX23UW(W)-E B-CC163TLE2 B-SC642TLE2 BMS-CM1280TLE B-EXS21TLE RBC-AMS41E RBC-AMS51E-EN/ES For 4-way Air Discharge Cassette For Under Ceiling 4series, 1-way Air Discharge Cassette SH For Under Ceiling 7series, Under Ceiling and 1-way Air Discharge Cassette SH 4series For Compact 4-way Cassette, 1-way Air Discharge Cassette YH, Concealed Duct Standard, Slim Duct, Floor Standing Cabinet, Floor Standing For 2-way Air Discharge Casette -EN : English, Italian, Polish, Greece, Russian, Turkish -ES : English, Spanish, Portuguese, French, Dutch, German Optional PCB of outdoor unit Name Model Name Remarks Power peak-cut control board B-PCDM4E External master ON/OFF control board B-PCMO4E Output control board B-PCIN4E Controls Name Model Name Remarks Touch Screen Controller Smart BMS manager Smart BMS manager with data analyzer WEB Based Controller S-NET Relay Interface Energy Monitoring Relay Interface Digital I/O Relay Interface LonWorks LN Interface BACnet Server Modbus Interface Analog Interface BMS-TP0641ACE BMS-TP5121ACE BMS-TP0641PWE BMS-TP5121PWE BMS-SM1280HTLE BMS-SM1280ETLE BMS-WB2561PWE BMS-WB01GTE BMS-IFLSV4E BMS-IFWH5E BMS-IFDD03E B-IFLN642TLE BMS-LSV9E BMS-STBN10E B-IFMB641TLE B-IFCB640TLE ACE:Without energy monitoring function PWE:With energy monitoring function 0641:Maxmimum 64 indoor units connectable 5121:Maximum 512 indoor units connectable 9

11 Side blow VRF Data book 2 Equipment selection procedure 2-1. Selection flow chart Determination of indoor air-conditioning load at each room. Preliminary selection of indoor units in the standard capacity no less than air-conditioning load at each room. Calculate corrected capacity A of each indoor unit by correcting of indoor temperature for the standard capacity of each indoor unit.(refer to Chart [1]) Preliminary selection of outdoor unit in the standard capacity no less than total values of corrected capacity A in indoor units. And check both connectable indoor units number and the outdoor unit diversity(connected ratio of indoor units to outdoor units) for the specifications. Calculate corrected capacity B of each indoor unit by following 2 steps. Step1:Find the correction value of "Connecting pipe length and lift -" by both the longest length and the largest height. (Refer to Chart [3]) Step2:Calculate by multiplying the value of step1 by corrected capacity A. ' Increase of indoor unit capacity at object room against air-conditioning load Corrected capacity B of indoor unit >= air-conditioning load (for All rooms) NO YES Find correction values of below items for the standard capacity of outdoor unit selected at or '. Then determination of total corrected capacity of the selected outdoor unit by all multiplying. -Correction of indoor temperature condition(refer to Chart [1]) -Correction of outdoor temperature condition(refer to Chart [2]) -Correction of connecting pipe length and lift between indoor and outdoor units by both the longest length and the largest height (Refer to Chart [3]) -Correction of outdoor unit diversity (Refer to Chart [4]) -Correction of frost condition on outdoor heat exchanger when in heating (Refer to Chart [5]) Calculate corrected capacity C of each indoor unit by multiplying the total corrected capacity of outdoor unit at by proportional division of each indoor unit standard capacity for total standard capacity of all indoor units. ' Increase of outdoor unit capacity. And check the outdoor unit diversity Corrected capacity C of indoor unit >= air-conditioning load (for All rooms) NO YES end 10

12 2 Equipment selection procedure 2-2. Combination conditions for indoor unit and outdoor unit Indoor unit can connect 80 % to 130 % of Outdoor unit capacity For indoor unit, the capacity code is decided for each capacity rank. Capacity rank type 005(*1) Capacity code Equivalent to HP NOTE: Capacity rank : Correspondence to Btu/h. Capacity code : Correspondence to Horsepower. *1 : Capacity code of 005 type is the same as 007 type For outdoor unit, maximum No. of connectable indoor units and total capacity code of indoor units are decided. Outdoor unit Capacity code of outdoor unit No. of connectable indoor units Total capacity code of indoor units MCY-MHP0404HT* 4 2 to to 5.2 MCY-MHP0504HT* 5 2 to to 6.5 MCY-MHP0604HT* 6 2 to to

13 2 Equipment selection procedure 2-3. Cooling / heating capacity characteristics Correction charts for cooling capacity calculation [1] Capacity correction value vs. indoor air wet bulb temperature Capacity correction value Indoor air wet bulb temp. ( C) [2] Capacity correction value vs. outdoor air dry bulb temperature Capacity correction value Outdoor air dry bulb temp. ( C) [3] Capacity correction value vs. connecting pipe length and lift difference between indoor and outdoor units Height of outdoor unit H [m] Pipe length (Equivalent length) L [m] [4]* Correction of outdoor unit diversity Capacity correction value Standard capacity ratio Indoor units total capacity ratio (%) * : Coefficient to use for correction of outdoor unit capacity when total capacity of the indoor units are not equal to the outdoor unit capacity. 12

14 2 Equipment selection procedure Correction charts for heating capacity calculation [1] Capacity correction value vs. indoor air dry bulb temperature Capacity correction value Indoor air dry bulb temp. ( C) [2] Capacity correction value vs. outdoor air wet bulb temperature Capacity correction value Outdoor air wet bulb temp. ( C) [3] Capacity correction value vs. connecting pipe length and lift difference between indoor and outdoor units Height of outdoor unit H [m] Pipe length (Equivalent length) L [m] [4]* Correction of outdoor unit diversity Capacity correction value Standard capacity ratio Indoor units total capacity ratio (%) * : Coefficient to use for correction of outdoor unit capacity when total capacity of the indoor units are not equal to the outdoor unit capacity. 13

15 2 Equipment selection procedure Capacity correction in case of frost on the outdoor heat exchanger in heating Correct the heating capacity when frost was found on the outdoor heat exchanger. Heating capacity = Capacity after correction of outdoor unit x Correction value of capacity resulted from frost (Capacity after correction of outdoor unit: Heating capacity calculated in the above item 2.) [5] capacity correction in case of frost on the outdoor heat exchanger Capacity correction value Outdoor air wet bulb temp. ( C) 14

16 2 Equipment selection procedure 2-4. Operational temperature range Cooling Outdoor air dry bulb temp. ( C) Indoor air wet bulb temp. ( C) Heating Outdoor air wet bulb temp. ( C) Indoor air dry bulb temp. ( C) The unit will operate down to an outdoor temperature of -20 C, however considerable performance decrease will be expected below -15 C. Therefore please consider installation location/surroundings and system design when expected to operate between -15 C and -20 C. 15

17 Side blow VRF Data book 3 Refrigerant piping design 3-1. Free branching system [1] Line branching system [2] Header branching system [3] Header branching system after line branching [4] Line branching system after header branching [5] Header branching system after header branching The above five branching systems enable to dramatically increase the flexibility of refrigerant piping design. Outdoor Branching joint Line branching system Indoor unit Remote controller Outdoor Branching header Header branching system * In case of "PMV Kit" Remote controller Header branching system Outdoor Branching joint PMV Kit * Indoor unit Branching header Remote controller Line branching system after header branching * In case of "PMV Kit" Outdoor Branching header Branching header Branching joint Header branching system after header branching PMV Kit * Indoor unit Remote controller 16

18 3 Refrigerant piping design 3-2. Allowable length / height difference of refrigerant piping Outdoor unit Main pipe L1 Branching pipe L2 Branching header Height difference between indoor and outdoor units H1 1st branching section Branching pipe L3 a b c d Indoor unit Equivalent length corresponded to farthest piping L Equivalent length corresponded to farthest piping after 1st branching Li Y-shaped branching joint e f A *1 Height difference between indoor units H2 Pipe Length Height Difference *1 Furthest indoor unit from 1st branch to be named "A" Allowable value Piping section Total extension of pipe (Liquid pipe, real length) 90 m L1 + L2 + L3 + a + b + c + d + e + f Furthest piping length L (*1) Real length 50 m Equivalent length 60 m L1 + L3 + f Max. real length of main pipe 30 m L1 Max. real length of furthest piping from 1st branching Li (*1) 20 m L3 + f Max. real length of indoor unit connecting pipe 10 m a, b, c, d, e, f Upper outdoor unit 15 m Height between indoor and outdoor units H1 Lower outdoor unit 15 m Height between indoor units H2 10 m 17

19 3 Refrigerant piping design 3-3. Selection of refrigerant piping Outdoor unit Gas pipe Liquid pipe Main pipe (1) 1st branching section (4) Branching pipe (2) Branching header (5) Branching pipe (2) (3) (3) (3) (3) Y-shaped branching joint (4) Indoor unit (3) (3) Indoor unit No. Piping parts Name Selection of pipe size Remarks (1) Outdoor unit 1st branching section Main pipe Size of main pipe Outdoor unit capacity type Gas pipe Liquid pipe 0404 type type type Same as connecting pipe size of the outdoor unit. (2) Branching section Branching section Branching pipe Pipe size between branching sections Total capacity codes of indoor units at down stream side Gas pipe Liquid pipe Equivalent to HP Equivalent to capacity Below 2.4 Below to below to below or more 18.0 or more Pipe size differs based on the total capacity code value of indoor units at the downstream side. If the total value exceeds the capacity code of the outdoor unit, apply the capacity code of the outdoor unit. Connecting pipe size of indoor unit (3) Branching section Indoor unit Indoor unit connecting pipe Capacity rank Gas pipe Liquid pipe 005 to 012 type to 018 type to 056 type (4) Branching section Y-shaped branching joint Selection of branching section (Y-shaped branching joint) Model name Y-shape branch joint RBM-BY55E Selection of branching section (Branching header) (5) Branching section Branching header Branching header For 4 branches For 8 branches Model name RBM-HY1043E RBM-HY1083E 18

20 3 Refrigerant piping design 3-4. Allowable length / height difference of refrigerant piping with PMV Kit NOTE Do not connect two or more indoor units to one PMV Kit. Arrange one indoor unit and one PMV Kit set to 1 by 1. NO GOOD OK PMV Kit PMV Kit Outdoor unit Indoor unit Indoor unit Main pipe L1 Branching pipe L2 Branching header Height difference between indoor and outdoor units H1 1st branching section Branching pipe L3 a b c d g h i j Indoor unit Equivalent length corresponded to farthest piping L PMV Kit Height difference between indoor unit and PMV Kit H2 * * Between highest unit and lower units. Example) Equivalent length corresponded to farthest piping after 1st branching Li H2 Y-shaped branching joint e k f l A *1 H2 H2 Allowable value Piping section Total extension of pipe (Liquid pipe, real length) 75 m L1 + L2 + L3 + a + b + c + d + e + f + g + h + i + j + k + l Furthest piping length L (*1) Real length 40 m Equivalent length 50 m L1 + L3 + f + l Pipe Length Max. real length of main pipe 25 m L1 Max. real length of furthest piping from 1st branching Li (*1) 15 m L3 + f + l Max. real length of indoor unit connecting pipe 10 m a + g, b + h, c + i, d + j, e + k, f + l Real length between PMV Kit and indoor unit 2 m or more Below 10 m g, h, i, j, k, l Upper outdoor unit 15 m Height Height between indoor and outdoor units H1 Lower outdoor unit 15 m Difference Height between indoor unit and PMV Kit H2 10 m *1 Furthest indoor unit from 1st branch to be named "A" 19

21 3 Refrigerant piping design 3-5. Selection of refrigerant piping with PMV Kit Outdoor unit Gas pipe Main pipe (1) Liquid pipe 1st branching section (4) Branching pipe (2) Branching header (5) PMV Kit Branching pipe (2) (3) ( 6) ( 6) ( 6) ( 3) ( 3) Y-shaped branching joint ( 4) (3) ( 6) Indoor unit (3) ( 6) ( 3) (6) Indoor unit No. Piping parts Name Selection of pipe size Remarks (1) Outdoor unit 1st branching section Main pipe Size of main pipe Outdoor unit capacity type Gas pipe Liquid pipe 0404 type type type Same as connecting pipe size of the outdoor unit. (2) Branching section Branching section Branching pipe Pipe size between branching sections Total capacity codes of indoor units at down stream side Gas pipe Liquid pipe Equivalent to HP Equivalent to capacity Below 2.4 Below to below to below or more 18.0 or more Pipe size differs based on the total capacity code value of indoor units at the downstream side. If the total value exceeds the capacity code of the outdoor unit, apply the capacity code of the outdoor unit. Connecting pipe size of indoor unit (3) Branching section Indoor unit Indoor unit connecting pipe Capacity rank Gas pipe Liquid pipe 005 to 012 type to 018 type to 056 type (4) Branching section Y-shaped branching joint Selection of branching section (Y-shaped branching joint) Model name Y-shape branch joint RBM-BY55E Selection of branching section (Branching header) (5) Branching section Branching header Branching header For 4 branches For 8 branches Model name RBM-HY1043E RBM-HY1083E Selection of PMV Kit (6) PMV Kit PMV Kit Indoor unit capacity type Model name 005 to 014 type RBM-PMV0362E 015 to 027 type RBM-PMV0902E * PMV kit can be connected less than 027 type FCU. 20

22 3 Refrigerant piping design 3-6. Charging requirement with additional refrigerant After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant. Refrigerant amount charged in factory Outdoor unit type MHP0404 MHP0504 MHP0604 Charging amount (kg) Calculation of additional refrigerant charge amount Refrigerant charge amount factory default does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally. NOTE When the additional refrigerant amount indicates minus as the result of calculation, it is not necessary to subtract any refrigerant. Calculating formula Additional refrigerant charge amount at lacal site (kg) Real length of liquid pipe Additional refrigerant charge amount per 1 m liquid pipe (Table 1) Corrective amount of refrigerant depending on the indoor units (Table 2) = x + + Compensation by outdoor HP (Table 3) Table 1 Liquid pipe diameter (mm) Additional refrigerant amount /1 m liquid pipe (kg/m) Table2 Indoor unit model name Capacity rank 005(*1) Capacity code (Equivalent to HP) MMU-AP****H way cassette MMU-AP****MH* way cassette MMU-AP****WH* way cassette MMU-AP****YH / SH* MMD-AP****BH* Duct MMD-AP****S(P)H* MMD-AP****H* Under-ceiling MMC-AP****HP* MMC-AP****H* High wall MMK-AP****H* MMK-AP****MH* MMF-AP****H* Floor standing MML-AP****H* MML-AP****BH* MML-AP****NH* *1: Capacity code of 005 type is the same as 007 type. (kg) Table 3 Outdoor unit capacity type MCY- MHP0404 MHP0504 MHP0604 Compensation by outdoor HP (kg)

23 Side blow VRF Data book 4 Wiring design 4-1. General The appliance shall be installed in a accordance with national wiring regulations. Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire. Perform wiring of power supply complying with the rules and regulations of the local electric company. Never connect AC voltage power to the control wiring terminal block (U1,U2,U3,U4); otherwise the unit may break down. Be sure that electric wiring does not come into contact with high-temperature parts of piping; otherwise the coating of cables may melt and cause an accident. Locate wiring system for the control and refrigerant piping system in the same line. Do not turn on the power supply of the indoor units until vacuuming of the refrigerant pipe has finished. For the wiring of power to indoor units and that between indoor and outdoor units, follow the instructions in the installation manual of each indoor unit Electrical wiring design Outdoor power source Circuit breaker (Earth leakage breaker) Main switch (Fuse) Pull box Indoor power source Single phase 50 Hz V Earth leakage breaker power switch Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Determine the wire size for the indoor unit according to the number of connected indoor units downstream Outdoor unit power supply Electrical characteristics Model name Normal Voltage Voltage Range Compressor Fan Motor Power Supply (V-Ph-Hz) Min Max kw kw MCA MOCP MCY-MHP0404HT-E MCY-MHP0504HT-E MCY-MHP0604HT-E MCA : Maximum Circuit Amps MOCP : Maximum Overcurrent Protection (Amps) 22

24 4 Wiring design 4-4. Indoor unit power supply Electrical characteristics Type 4-Way Air Discharge Cassette Type Compact 4-way Cassette (600 x 600) Type 2-Way Air Discharge Cassette Type 1-Way Air Discharge Cassette Type Model Nominal Voltage (V-Ph-Hz) Voltage Range Fan Motor Power Supply Min Max kw FLA MCA MOCP MMU-AP0092H MMU-AP0122H MMU-AP0152H MMU-AP0182H MMU-AP0242H MMU-AP0272H MMU-AP0302H MMU-AP0362H MMU-AP0482H MMU-AP0562H MMU-AP0094HP-E MMU-AP0124HP-E MMU-AP0154HP-E MMU-AP0184HP-E MMU-AP0244HP-E MMU-AP0274HP-E MMU-AP0304HP-E MMU-AP0364HP-E MMU-AP0484HP-E MMU-AP0564HP-E MMU-AP0054MH-E MMU-AP0074MH-E MMU-AP0094MH-E MMU-AP0124MH-E MMU-AP0154MH-E MMU-AP0184MH-E MMU-AP0072WH MMU-AP0092WH MMU-AP0122WH MMU-AP0152WH MMU-AP0182WH MMU-AP0242WH MMU-AP0272WH MMU-AP0302WH MMU-AP0362WH MMU-AP0485WH MMU-AP0562WH MMU-AP0074YH-E MMU-AP0094YH-E MMU-AP0124YH-E MMU-AP0154SH-E MMU-AP0184SH-E MMU-AP0244SH-E

25 4 Wiring design Type Concealed Duct Type Concealed Duct High Static Pressure Type Slim Duct Type Ceiling Type High-wall Type (3 series) High-wall Type (4 series) Model Nominal Voltage (V-Ph-Hz) Voltage Range Fan Motor Power Supply Min Max kw FLA MCA MOCP MMD-AP0076BHP-E MMD-AP0096BHP-E MMD-AP0126BHP-E MMD-AP0156BHP-E MMD-AP0186BHP-E MMD-AP0246BHP-E MMD-AP0276BHP-E MMD-AP0306BHP-E MMD-AP0366BHP-E MMD-AP0486BHP-E MMD-AP0566BHP-E MMD-AP0184H-E MMD-AP0244H-E MMD-AP0274H-E MMD-AP0364H-E MMD-AP0484H-E MMD-AP0054SPH-E MMD-AP0074SPH-E MMD-AP0094SPH-E MMD-AP0124SPH-E MMD-AP0154SPH-E MMD-AP0184SPH-E MMC-AP0154H-E MMC-AP0184H-E MMC-AP0244H-E MMC-AP0274H-E MMC-AP0364H-E MMC-AP0484H-E MMC-AP0157HP-E MMC-AP0187HP-E MMC-AP0247HP-E MMC-AP0277HP-E MMC-AP0367HP-E MMC-AP0487HP-E MMC-AP0567HP-E MMK-AP0073H MMK-AP0093H MMK-AP0123H MMK-AP0153H MMK-AP0183H MMK-AP0243H MMK-AP0074MH-E MMK-AP0094MH-E MMK-AP0124MH-E

26 4 Wiring design Type Floor Standing Cabinet Type Floor Standing Concealed Type Floor Standing Type Console Type Nominal Voltage Range Fan Motor Power Supply Model Voltage (V-Ph-Hz) Min Max kw FLA MCA MOCP MML-AP0074H-E MML-AP0094H-E MML-AP0124H-E MML-AP0154H-E MML-AP0184H-E MML-AP0244H-E MML-AP0074BH-E MML-AP0094BH-E MML-AP0124BH-E MML-AP0154BH-E MML-AP0184BH-E MML-AP0244BH-E MMF-AP0154H-E MMF-AP0184H-E MMF-AP0244H-E MMF-AP0274H-E MMF-AP0364H-E MMF-AP0484H-E MMF-AP0564H-E MML-AP0074NH-E MML-AP0094NH-E MML-AP0124NH-E MML-AP0154NH-E MML-AP0184NH-E Wiring size Must be independent from the outdoor unit power supply Item Power supply wiring Model Wire size All models of indoor units 2.0 mm 2 (AWG#14) Max. 20 m 3.5 mm 2 (AWG#12) Max. 50 m NOTE: The above connecting lengths stated in the table, indicate the length from the isolator to the outdoor unit. When the power supply of the indoor units are connected in parallel, it is assumed that no more than a 2 % voltage drop will occur. If the connecting length is to exceed the stated lengths, select a suitable wire in accordance with the local wiring standards. 25

27 4 Wiring design 4-5. Design of control wiring Summary of control wiring Outdoor unit U1 U2 U3 U4 Central controller U1 U2 U3 U4 Open Control wiring between indoor and outdoor unit (Shield wire) Control wiring between indoor units (Shield wire) U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B Indoor unit Indoor unit Indoor unit Indoor unit A B A B A B Remote controller Remote controller Remote controller (Group control) Control wiring and central control wiring use 2-core non-polarity wires. Use 2-core shield wires to prevent noise trouble. In this case, for the system grounding, close (connect) the end of shield wires, and isolate the end of terminal. Use 2-core non-polarity wire for remote controller. (A, B terminals) Use 2-core non-polarity wire for wiring of group control. (A, B terminals) 26

28 4 Wiring design Restriction of control wiring Keep the rule of below tables about size and length of Control wiring. Central controller U1 U3 U2 U4 Outdoor unit U1 U2 U3 U4 U1 U2 U3 U4 This system L4 Table-1 U1 U2 U5 U6 Other system Header unit U3 U4 Follower unit U3 U4 U1 U2 U5 U6 Table-1 L5 Table-2 L1 L2 L3 Indoor unit U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B Table-3 L7 L6 L7 L6 Remote controller Remote controller Remote controller Table-1 Wiring Type Control wiring between indoor and outdoor units (L1, L2, L3), Central control wiring (L4) Size/Length * mm 2 : Up to 1000 m 2.0 mm 2 : Up to 2000 m (*1): Total of control wiring length for all refrigerant circuits (L1 + L2 + L3 + L4) Table-2 Wiring Type Size/Length 2-core, non-polarity Shield wire Control wiring between outdoor units (L5) (Other system) 2-core, non-polarity Shield wire 1.25 mm 2 to 2.0 mm 2 Up to 100 m (L5) Table-3 Remote controller wiring (L6, L7) Wire 2-core Size 0.5 mm 2 to 2.0 mm 2 Length Up to 500 m (L6 + L7) Up to 400 m with of wireless remote controller in group control. Up to 200 m total length of control wiring between indoor units (L6) Group control through a remote controller Group control of multiple indoor units (8 units) through a single remote controller Indoor unit No.1 No.2 No.3 No.4 No.7 No.8 A B A B A B A B A B A B Remote controller (A.B) 27

29 Side blow VRF Data book 5 Outdoor unit 5-1. Specifications Outdoor unit model name MCY-MHP0404HT-E MCY-MHP0504HT-E MCY-MHP0604HT-E Outdoor unit type Inverter Inverter Inverter Capacity code HP Cooling Capacity (*1) kw Heating Capacity (*1) kw Power supply (*2) 1phase 50Hz 220 / 230 / 240V 1phase 50Hz 220 / 230 / 240V 1phase 50Hz 220 / 230 / 240V Electrical characteristics (Nominal) (*1) Dimension Total Weight Appearance (Color) Compressor Fan unit Running current A 13.9 / 13.3 / / 16.0 / / 19.7 / 18.9 Cooling Power consumption kw Power factor % EER Running current A 13.3 / 12.8 / / 17.3 / / 20.4 / 19.5 Heating Power consumption kw Power factor % COP Starting Current A Soft start Soft start Soft start Height mm 1,235 1,235 1,235 Unit Width mm Depth mm Height mm 1,350 1,350 1,350 Packing Width mm 1,102 1,102 1,102 Depth mm Unit kg Packed unit kg Silky shade Silky shade Silky shade (Munsell 1Y8.5/0.5) (Munsell 1Y8.5/0.5) (Munsell 1Y8.5/0.5) Type Hermetic twin rotary compressor Hermetic twin rotary compressor Hermetic twin rotary compressor Motor output kw Fan Propeller fan (Quantity 2) Propeller fan (Quantity 2) Propeller fan (Quantity 2) Motor output W Air volume m 3 /h 6,030 6,210 6,410 Heat exchanger Finned tube Finned tube Finned tube Refrigerant R410A (Charged refrigerant amount (kg)) (*3) Protective devices (*4) Electrical MCA (*5) A Unit specifications MOCP (*6) A Connecting port Gas side (main pipe) mm Refrigerant diameter Liquid side (main pipe) mm piping Connecting Gas side Flare Flare Flare method Liquid side Flare Flare Flare Max. No. of connected indoor units Sound pressure level Cooling db(a) Heating db(a) Operation temperature range Cooling CDB -5 to 43-5 to 43-5 to 43 Heating CWB -20 to to to 15 (*1) Rated conditions Cooling : Indoor 27 degc Dry Bulb / 19 degc Wet Bulb, Outdoor 35 degc Dry Bulb. Heating : Indoor 20 degc Dry Bulb, Outdoor 7 degc Dry Bulb / 6 degc Wet Bulb. The standard pipe means that equivalent piping length of 7.5 m and standard 0 m piping height difference. (*2) The source voltage must not fluctuate more than ±10%. (*3) The amount dose not consider extra piping length and indoor unit type. Refrigerant must be added on site in accordance with the actual piping length and indoor unit type. (*4) Discharge temp. sensor / Suction temp. sensor / High-pressure sensor / Low-pressure sensor / Compressor case thermostat / PC board fuse (*5) Select wire size base on the large value of MCA. MCA : Minimum Circuit Amps (*6) MOCP Maximum Overcurrent Protection (Amps) 28

30 5 Outdoor unit 5-2. Dimensional drawing MCY-MHP0404HT-E, MCY-MHP0504HT-E, MCY-MHP0604HT-E 29

31 5 Outdoor unit 5-3. Branch header / branch joint Branch header RBM-HY1043E, HY1083E Gas side Liquid side Model RBM-HY1043E RBM-HY1083E A B C ød øe n Gas side x 4, Accessory socket Qty x 4, x 1, Liquid side x 4, x 1, x1 Gas side x 8, x 8, x 1, Liquid side x 8, x 1, x1 Y-shape branch joint RBM-BY55E Gas side Liquid side Model RBM-BY55E A B øc ød Gas side x 1, Accessory socket Qty Liquid side x2 Accessory socket 1 369O dh{}+a O 37.5 Outer dia. B C Outer dia. Outer dia. A B d h { } + - D Outer dia. 30 A B x 2, x2 x 1, x1 x 1, x1

32 5 Outdoor unit 5-4. Refrigerant cycle diagram Sensor (TO) Heat exchanger Sensor (TE) Solenoid valve (SV5) 4-Way valve Sensor (TS) Strainer Check joint Solenoid valve PMV Strainer High pressure sensor High pressure SW Muffler Solenoid valve Capillary tube Check joint Low pressure sensor Sensor (TD) Sensor (TL) Strainer Compressor thermo. Accumulator Compressor Liquid side packed valve Gas side ball valve 31

33 5 Outdoor unit 5-5. Wiring diagram MCY-MHP0404HT-E, MCY-MHP0504HT-E, MCY-MHP0604HT-E 32

34 5 Outdoor unit 5-6. Connecting diagram MCY-MHP0404HT-E, MCY-MHP0504HT-E, MCY-MHP0604HT-E Outdoor power supply 1N~ 50Hz V Earth L N Central remote controller power supply 1N~ 50Hz V L N Earth U1 U2 U3 U4 (Open) U1 U2 U3 U4 CN02 CN01 *1 (1) Outdoor unit (2) Indoor unit (3) Remote controller (4) Central remote controller (option) (5) Main switch (Fuse) (6) Circuit breaker (Earth leakage breaker) (7) Pull box (8) PMV Kit (option) W1 W2 Control wiring between indoor and outdoor units. Control wiring between indoor units. (Note) 1. When perform a central control, connect the wire of CN01 in CN02. (Factory default : No connection) 2. Connection of shield wire must be connected. (Connected to all connecting sections in each Indoor unit) 3. Group control 4. Select the power supply wiring and fuse of outdoor/indoor units according to each models specification. Perform wiring of power supply complying with the rules and regulations of the local electric company. 5. Fro the control wires connecting indoor units, outdoor units, and between indoor and outdoor units, use 2-core and non-polarity shield wires. 6. As for details, see the wiring diagram of indoor/outdoor unit. W1 W2 *2 U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B Indoor control Earth Earth Earth PC boad L N L N L N Earth L N A B A B A B *3 Indoor unit power supply 1N~ 50Hz V 33

35 5 Outdoor unit 5-7. Optional printed circuit board (PCB) of outdoor unit Model name Appearance Power peak-cut Control Standard Specifications (Wiring example) Function L1: Display lamp during power peak cut control Locally procured Outdoor unit interface PCB Optional PCB Display relay TB1 L1 Power supply Size : 71 x 85 (mm) Application CN513 SW07 ON OFF Bit 2 OFF [OPERATION] PJ17 TB2 COM ON [ON] COM OFF [OFF] Connection cable (attached in this optional PCB) Shield wire Shield wire SW 1 SW2 SW1 SW2 For SW1 and SW2, be sure to provide no-voltage contacts for each terminal. The input signals of SW1 and SW2 may be pulse input (100 msec or more) or continuous make. Do not turn on [SW1] and [SW2] simultaneously. <SW07 (bit 2) OFF [2-stage switching]> B-PCDM4E * Installation the optional PCB in the interface board of the outdoor unit. Input SW07 (bit 1) SW1 SW2 Bit 1 OFF Bit 1 ON OFF ON 100 % (normal operation) ON OFF 0 % (forced stop) Enhanced Specifications (Wiring example) 100 % (normal operation) Approx. 60 % (upper limit regulated) L1: Display lamp during power peak cut control Locally procured Display relay (L1) OFF ON Outdoor unit interface PCB Optional PCB Display relay TB1 L1 Power supply CN513 SW07 ON OFF Bit 2 ON [OPERATION] PJ17 TB2 COM ON [ON] COM OFF [OFF] Connection cable (attached in this optional PCB) Shield wire Shield wire SW 1 SW 2 For SW1 and SW2, be sure to provide no-voltage contacts for each terminal. <SW07 (bit 2) ON [4-stage switching]> Input SW07 (bit 1) SW1 SW2 Bit 1 OFF Bit 1 ON OFF ON OFF OFF OFF ON 100 % (normal operation) Approx. 80 % (upper limit regulated) Approx. 60 % (upper limit regulated) ON ON 0 % (forced stop) 100 % (normal operation) Approx. 85 % (upper limit regulated) Approx. 75 % (upper limit regulated) Approx. 60 % (upper limit regulated) Display relay (L1) OFF ON ON ON 34

36 5 Outdoor unit Model name Appearance [1] External master ON/OFF control Function Function By connecting the cable (attached in this optional PCB) to the interface PC board on an outdoor unit, all indoor units connected to the outdoor unit enable to operate simultaneously. Size : 55.5 x 60 (mm) Application Outdoor unit interface PCB CN512 Connection cable (attached in this optional PCB) SW1: Operation input switch SW2: Stop input switch Optional PCB PJ17 COM COOL HEAT TB1 Locally procured Shield wire SW1 SW2 Terminal Input signal Operation COOL (SW1) HEAT (SW2) ON OFF ON OFF All indoor units operate together All indoor units stop together B-PCMO4E * Installation the optional PCB in the interface board of the outdoor unit. Provide no-voltage pulse contacts for each terminal. Hold the ON state for at least 100 msec. Do not turn SW1 and SW2 ON simultaneously. [2] Night time operation (sound reduction) control Function As the cable (attached in this optional PCB) is connected to the Interface PCB on an outdoor unit, both compressor speed and fan speed are restricted while the signal of the night operation control is input. It makes the noise reduction during the night time operation. Outdoor unit interface PCB CN508 Connection cable (attached in this optional PCB) Optional PCB PJ17 COM COOL HEAT TB1 Locally procured Shield wire SW1 SW1: Night time signal switch Terminal Input signal Operation COOL (SW1) ON OFF ON OFF Night time control Normal operation Each terminal should be connected to dry contact. The input signal is recognized during its rising/falling phase. (After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.) 35

37 5 Outdoor unit Model name Appearance Size : 55.5 x 60 (mm) Application Function Sound reduction and approximation capacity (reference) Outdoor unit (base unit) During low-noise mode Capacity db(a) Cooling Heating Cooling Heating Model 0404* approx. 85 % approx. 95 % Model 0504* approx. 80 % approx. 80 % Model 0604* approx. 80 % approx. 70 % * Position of noise measuring device: 1 m from the front face of the set and 1.5 m above ground (anechoic sound) [3] Operation mode selection control Relative to maximum capacity Function The heating/cooling mode of the system can be selected by connecting to the interface PCB of outdoor units. B-PCMO4E * Installation the optional PCB in the interface board of the outdoor unit. Outdoor unit interface PCB CN510 Connection cable (attached in this optional PCB) Optional PCB SW1: Cooling mode specified input switch SW2: Heating mode specified input switch Each terminal should be connected to dry contact. PJ17 COM COOL HEAT TB1 Locally procured Shield wire SW1 SW2 Input Signal Cooling (SW1) Heating (SW2) Operation: Selected operation mode ON OFF Cooling operation only OFF ON Heating operation only OFF OFF Normal operation Indoor unit operation intervention function The statuses of indoor units operating in a mode different from the selected operation mode can be changed by changing the status of a jumper wire (J01) provided on the interface P.C. board of outdoor unit. Jumper wire J01 connected (factory default) J01 cut Description of intervention All indoor units operating in a mode different from the selected operation mode (prohibited-mode indoor units) become non-priority units (thermostat OFF). The display (operation ready) appears on the remote controller of prohibited-mode indoor units. The selected operation mode is imposed on all indoor units operating in a different mode. Mode selected at P.C. board Normal COOL HEAT Remote controller operation / display All modes (COOL, DRY, HEAT and FAN) available Only COOL, DRY and FAN available Only HEAT and FAN available operation mode control (turned on during remote controller operation) 36

38 5 Outdoor unit Model name Appearance Size : 73 x 79 (mm) Application Error / Operation Output Function Function The operation error output PCB can indicate operation and error states by connecting to the interface PCB of outdoor units. Operation Operation output: The operation indicator is on while any indoor unit in the system is operating. Error output: The error indicator is on when an error is occurred on even one of the indoor or outdoor units in the system. Wiring example Locally procured B-PCIN4E * Installation the optional PCB in the interface board of the outdoor unit. [PCB Installation Position] Outdoor unit interface PCB ON OFF SW16 CN C1 Optional PCB PJ20 TB1 1 OUTPUT1 2 3 OUTPUT2 4 5 OUTPUT3 6 * [OUTPUT3] is displayed when power is turned on. K1 K2 Shield wire C1 Attached connection cable 1 (4wires) CN511 Connector on interface side (green) K1, K2 Relays L1 Error indication Lamp L2 Operation indication Lamp OUTPUT1 Error output OUTPUT2 Operation output PJ20 Connector on optional PCB side PS Power supply unit TB1 Terminal block L1 L2 PS PS There are holes on the metal of interface PCB, and the optional PCBs are installed. Two kinds of the optional PCBs are able to install on it. Installation position of optional PCB B-PCDM4E B-PCIN4E B-PCMO4E Interface PCB In case of B-PCMO4E B-PCDM4E In case of B-PCIN4E B-PCMO4E In case of B-PCDM4E B-PCIN4E 37