Toshiba MMU-AP0091H Installation Manual

Super modular multi outdoor / indoor unit air conditioners
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INSTALLATION MANUAL

Indoor Unit

<4-way Air Discharge Cassette Type>
MMU-AP0091H, AP0121H, AP0151H,
MMU-AP0181H, AP0241H, AP0271H,
MMU-AP0301H, AP0361H, AP0481H
MMU-AP0561H
<2-way Air Discharge Cassette Type>
MMU-AP0071WH, AP0091WH, AP0121WH,
MMU-AP0151WH, AP0181WH, AP0241WH,
MMU-AP0271WH, AP0301WH
MMU-AP0481WH
(CHINA market only)
<1-way Air Discharge Cassette Type>
MMU-AP0071YH, AP0091YH, AP0121YH,
MMU-AP0151SH, AP0181SH, AP0241SH
<Concealed Duct Standard Type>
MMD-AP0071BH, AP0091BH, AP0121BH,
MMD-AP0151BH, AP0181BH, AP0241BH,
MMD-AP0271BH, AP0301BH, AP0361BH,
MMD-AP0481BH, AP0561BH
<Concealed Duct High Static Pressure Type>
MMD-AP0181H, AP0241H, AP0271H,
MMD-AP0361H, AP0481H, AP0721H,
MMD-AP0961H
<Under Ceiling Type>
MMC-AP0151H, AP0181H, AP0241H,
MMC-AP0271H, AP0361H, AP0481H
<High Wall Type>
MMK-AP0071H, AP0091H, AP0121H,
MMK-AP0151H, AP0181H, AP0241H
<Floor Standing Cabinet Type>
MML-AP0071H, AP0091H, AP0121H,
MML-AP0151H, AP0181H, AP0241H
<Floor Standing Concealed Type>
MML-AP0071BH, AP0091BH, AP0121BH,
MML-AP0151BH, AP0181BH, AP0241BH
<Floor Standing Type>
MMF-AP0151H, AP0181H, AP0241H,
MMF-AP0271H, AP0361H, AP0481H,
MMF-AP0561H
FILE NO. A03-012
Outdoor Unit
Cooling Only Model
<Inverter Unit>
MMY-MAP0501T8, MAP0601T8
MMY-MAP0801T8, MAP1001T8
MMY-MAP1201T8
Heat Pump Model
<Inverter Unit>
MMY-MAP0501HT8, MAP0601HT8
MMY-MAP0801HT8, MAP1001HT8
MMY-MAP1201HT8
Heat Pump Model
<Inverter Unit>
MMY-MAP0501HT7, MAP0601HT7
MMY-MAP0801HT7, MAP1001HT7
MMY-MAP1201HT7
PRINTED IN JAPAN, Sep, 2004 ToMo

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  • Page 1: Installation Manual

    FILE NO. A03-012 INSTALLATION MANUAL Indoor Unit Outdoor Unit <4-way Air Discharge Cassette Type> Cooling Only Model MMU-AP0091H, AP0121H, AP0151H, MMU-AP0181H, AP0241H, AP0271H, <Inverter Unit> MMU-AP0301H, AP0361H, AP0481H MMY-MAP0501T8, MAP0601T8 MMU-AP0561H MMY-MAP0801T8, MAP1001T8 <2-way Air Discharge Cassette Type> MMY-MAP1201T8 MMU-AP0071WH, AP0091WH, AP0121WH,...
  • Page 2 WARNINGS ON REFRIGERANT LEAKAGE Important Check of Concentration Limit The room in which the air conditioner is to be NOTE : 2 installed requires a design that in the event of The standards for minimum room volume are as refrigerant gas leaking out, its concentration will follows.
  • Page 3: Table Of Contents

    NOTE A direct current motor is adopted for indoor fan motor in the Concealed Duct Standard Type air conditioner. Caused from its characteristics, a current limit works on the direct current motor. When replacing the high- performance filter or when opening the service panel, be sure to stop the fan. If an above action is executed during the fan operation, the protective control works to stop the unit operation, and the check code “P12”...
  • Page 4: Selecting A Location For Installation

    CAUTION New Refrigerant Air Conditioner Installation • THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER. The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed.
  • Page 5 Combination of outdoor unit Cooling Only Model No. of Model name Inverter 5HP Used Inverter 6HP Used Inverter 8HP Used Inverter 10HP Used Inverter 12HP Used (Capacity combined MMY- MMY- Q’ty MMY- Q’ty MMY- Q’ty MMY- Q’ty MMY- Q’ty code) units 5HP ( 5) MAP0501T8...
  • Page 6 Heat-pump Model (60Hz) No. of Model name Inverter 5HP Used Inverter 6HP Used Inverter 8HP Used Inverter 10HP Used Inverter 12HP Used (Capacity combined MMY- MMY- Q’ty MMY- Q’ty MMY- Q’ty MMY- Q’ty MMY- Q’ty code) units 5HP ( 5) MAP0501HT7 MAP0501HT7 6HP ( 6)
  • Page 7: Map0801T8

    2. Outdoor units (Combination of outdoor units) Corresponding HP 5 HP 6 HP 8 HP 10 HP 12 HP 14 HP 16 HP MMY- MAP0501HT8 MAP0601HT8 MAP0801HT8 MAP1001HT8 MAP1201HT8 AP1401HT8 AP1601HT8 Combined Model MMY- MAP0501HT7 MAP0601HT7 MAP0801HT7 MAP1001HT7 MAP1201HT7 AP1401HT7 AP1601HT7 MMY- MAP0501T8...
  • Page 8: Required Tools

    Tools Required Tools The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. (1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) (2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) (3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.
  • Page 9: Safety Notes

    2. SAFETY NOTES • Ensure that all Local, National and International regulations are satisfied. • Read this “SAFETY NOTES” carefully before Installation. • The precautions described below include the important items regarding safety. Observe them without fail. • After the installation work, perform a trial operation to check for any problem. Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.
  • Page 10: Check Points

    3. CHECK POINTS Check before operation • Turn on the main power switch 12 hours or more before starting the operation. • Check whether earth wire is disconnected or out of place. • Check that air filter is installed to the indoor unit. Heating capacity •...
  • Page 11: Key Points Of Air Conditioner Installation

    4. KEY POINTS OF AIR CONDITIONER INSTALLATION In order to prevent problems before they arise, carefully read (1) the Installation Manual provided with the equipment, and (2) the Owner’s Manual before installing the air conditioner. 4-1. Flow of Air Conditioner Installation Work [Step] [Key Points] (Prior to Installation)
  • Page 12: Refrigerant Pipe Installation

    5. REFRIGERANT PIPE INSTALLATION 5-1. Work Procedure Flaring Indoor unit Sizing Preliminary installation the pipes installation Nitrogen gas blow Vacuum Leak test Flushing suction Brazing 5-2. Three Principles of Refrigerant Pipes <Observe the three principles of refrigerant pipes> Causes of Problems Preventing Problems •...
  • Page 13: Refrigerant Pipes

    5-3. Selecting the Refrigerant Line Material • Refrigerant pipes • Material: Phosphoric deoxidized seam-less pipe • Capacity code of outdoor unit / indoor unit • For each indoor unit, the capacity code is determined for every capacity rank. • For each outdoor unit, the capacity code is determined for every capacity rank. The Max. number of the connectable indoor units and the total capacity code value of the indoor units are also determined.
  • Page 14 Piping parts Name Selection of pipe size Remarks „ Branching Branching pipe 4) Pipe size between branching sections Pipe size differs based section on total capacity code Total capacity codes of indoor units ↓ value of indoor units at at downstream side Gas side Liquid side downstream side.
  • Page 15 5-4. Allowable length/height difference of refrigerant piping Follower <Ex. 1> <Ex. 2> unit 3 Header Follower Follower Header Follower Follower unit unit 1 unit 2 unit unit 1 unit 2 Follower Follower Header Height unit 1 unit 2 unit difference Connecting between piping of...
  • Page 16 • Brazed couplings and special branches • Use suitable parts for typical elbow couplings and socket couplings. (Consider the size, material, thickness, etc.) • Special branches Use deoxidized parts sold separately. Branching at Branching at indoor unit side outdoor unit side Branch header T-shape branching Branching joint...
  • Page 17 5-5. Careful Handling Careful handling is the most important step in preventing moisture, dirt, and dust from getting inside of the pipes. Moisture in pipes has caused major problems in numerous instances in the past. Therefore, it is important to be as careful as possible in order to prevent problems before they occur.
  • Page 18 CAUTIONS GOOD NOT GOOD 1) Do not allow dirt or moisture inside of the pipes. Dirt and moisture get inside • Keep the open ends of all pipes capped until all pipes have been connected. • Pipe openings should face horizontally or downwards if at all Pipe possible.
  • Page 19 NOTE : 1. All dimensions are in millimeters. In the following tables, ( ) 5-6. Parts of Branching Header/Joint indicates diameter of the indicated position, and others indicate diameter of the connecting pipe. Branching Header : RBM-HY1043E / HY1083E / HY2043E / HY2083E 2.
  • Page 20 5-7. Branching Kit Connection Method NOTE : [1] Branch joint Install the branch pipes horizontally or vertically so that they branch evenly. <Gas side> Install the branching joint within ± 15 degrees. Pipe in use on the site Socket To other branching Pipe in use Socket Outlet (2)
  • Page 21 <Gas-side> [2] Branch header Branching Header Within (Horizontal line) ± 15 degrees (A view) Select and install the socket that matches the Within diameter of a pipe to be connected to the indoor unit. (Horizontal line) ± 10 degrees (B view) <Gas-side branch header>...
  • Page 22 [3] T-shape branching joint (For connection of outdoor unit) RBM-BT13E Parts Please read "Safety Cautions" described in the NOTE : Installation Manual of the Air Conditioner. • Check the following parts in the package. All dimentions are in millimeters. In the following tables, ( ) indicates diameter of the •...
  • Page 23 <Branching pipes at gas side/liquid side> Pipe in use on the site To outdoor unit Socket at gas/liquid To other branching side (Provided) pipe or outdoor unit Pipe in use on the site Socket at gas/liquid side (Provided) To other branching pipe or branching Branching pipe at gas/liquid side (Provided) section of main pipe...
  • Page 24 5-8. External Dimensions of Branch Connectors (Outline drawings are shown on the following pages.) ∗ Model name Total capacity codes of indoor unit 1, 2 External view RBM-BY53E Below 6.4 RBM-BY103E 6.4 or more and below 14.2 ∗ 3 Y-shape branching joint RBM-BY203E 14.2 or more and below 25.2 RBM-BY303E...
  • Page 25: Brazing Work

    5-10. Brazing Work 1. Brazing work should be performed downwards (Recommended brazing) or sideways. Avoid brazing upwards (in order to avoid incomplete brazing). (Recommendation) 2. Always used the specified piping materials for Brazing material liquid pipes and gas pipes, and make sure that they are installed in the proper direction and at the proper angle.
  • Page 26 5-11. Flare Processing Flare processing procedure Parts and material : Copper pipe, flare nut. Flare nut shallbe of attached on the indoor unit or R410A exclusive. Tools : Flare tool (“Rigid” type), reamer, pipe cutter Work procedure Key point (Reason) Straighten the coiled copper pipe.
  • Page 27 Work procedure Key point (Reason) Attach the (“Rigid”) 1. Make sure that the • The copper pipe will slip out while the flaring process is in flare tool to the inner surfaces of the progress. copper pipe. flare tool are clean. •...
  • Page 28 5-12. Flushing The flushing process uses gas pressure to remove foreign matter from the inside of pipes. Three major effects (1) Removes oxidation that formed inside of the pipe during brazing as a result of an inadequate “nitrogen gas blow” procedure. (2) Removes foreign matter and moisture that has gotten inside of pipes due to improper handling.
  • Page 29 5-13. Pipe Connections to the Indoor Unit 1. Once you remove the flare nut from the pipe on the indoor unit (always use a torque wrench), a small amount of gas will escape, but this is simply Tapered portion nitrogen gas with atmospheric pressure that was <Indoor unit>...
  • Page 30 5-14. Pipe Connection to the Outdoor Unit 1. The refrigerant pipe connection is inside of the outdoor unit. Remove the front panel and the pipe/wiring panel. (Nine M5 screws) • There is one hook on the left and right sides of the front panel. Lift the front panel to release these hooks. 2.
  • Page 31 Pipe connecting method of valve at gas side (Example) MMY- Pipe diameter Draw-out forward Draw-out downward ∗ ∗ ∗ ∗ ∗ MAP0501 Ø15.9 Connect Ø15.9 pipe with flaring. Connect Ø15.9 pipe with flaring. ∗ ∗ ∗ ∗ ∗ MAP0601 Ø19.1 Connect the attached pipe to the valve with Connect the attached pipe to the flaring, and then braze the elbow and pipe...
  • Page 32: Leak Test

    5-15. Leak Test A leak test must be performed when connecting pipes to the refrigerant pipes in use at a site. [1] Leak test pressure For Super MMS air conditioner systems: 3.73MPa (38kg/cm [2] Test method After the refrigerant piping has finished, execute an airtight test. For an airtight test, connect a nitrogen gas bomb as shown in the figure below, and apply pressure.
  • Page 33 NOTES If piping is long, an airtight test is performed for each divided block. 1) Indoor side + vertical pipe 2) Indoor side + vertical pipe + outdoor side [3] Air purge For the air purge at installation time (Discharge of air in connecting pipes), use “Vacuum pump method” from viewpoint of protection of earth environment.
  • Page 34 5-16. Charging the System with Additional Refrigerant After the system has been vacuumed, replace the vacuum pump with a refrigerant cylinder and charge the system with additional refrigerant. Calculating of additional refrigerant charge amount R410A Refrigerant in the system when shipped from the factory 10HP 12HP Heat pump model...
  • Page 35: Map1001Ht8

    Refrigerant charging • Keeping valve of the outdoor unit closed, be sure to charge liquid refrigerant from service port at liquid side. • If the specified amount of refrigerant cannot be charged, open fully valves of outdoor unit at liquid, gas, and balance sides, perform cooling operation under condition that valve at gas side returns to close side a little ∗...
  • Page 36 Chart of additional refrigerant charging amount Unit [kg] Pipe size (Liquid pipe) Pipe size (Liquid pipe) Actual piping Actual piping length (m) length (m) Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.1 Ø22.2 Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.1 Ø22.2 0.025 0.055 0.105 0.160 0.250 0.350 0.775...
  • Page 37 <Full opening of valve> • Open valve of the outdoor unit fully. • Using 4mm-hexagonal wrench, open fully the valve rods at liquid and balance sides. • Using a spanner, etc, open fully the valve rod of packed valve (MMY-MAP0801*, MAP1001*, MAP1201*) at gas side.
  • Page 38: Check List

    • Check the additional amount of refrigerant. <Check list> Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) by the pipe diameter at liquid side and the pipe length to be connected and the corrective amount of refrigerant (C) by the system Additional amount Real liquid Additional amount of...
  • Page 39: Insulation Work

    5-17. Insulation Work Work procedure Refrigerant Heat insulating work Heat insulating work Airtight test piping work (Except connecting section) (Connecting section) Material Use material withstanding sufficiently to temperature of pipe for the heat insulator. Example : Heat insulating polyethylene foam (Heat insulating 120°C or more) Insulation guidelines All insulation work for brazed joints, flared joints, etc., should be performed only after successfully passing the leak test.
  • Page 40 CAUTION (1) Use the insulating material provided to insulate the indoor unit pipe connection (union and flare nut). Insulated pipe provided (Peel off paper to apply.) Wrap with vinyl tape. Gas-side pipe Gas-side pipe Seal with vinyl tape. Insulation provided (2) When insulating branch joints, align the insulating material that was provided with the branch kit with the pipe on site and tape the insulation in place.
  • Page 41 5-18. Reference for Insulation Work Reference Sometimes, copper pipe with insulated sheathing is used in order to save labor. The following reference applies to this type of pipe. n Types and Characteristics of Copper Pipe with Insulated Sheathing • Insulation: 8 to 10mm Insulation (chemically cross-linked 30x foam polyethylene) <Pair coil>...
  • Page 42: Indoor Unit Installation

    6. INDOOR UNIT INSTALLATION WARNING Install the air conditioner certainly to sufficiently withstand the weight. If the strength is insufficient, the unit may fall down resulting in human injury. Perform a specified installation work to guard against strong wind or earthquake. An incomplete installation can cause accidents by the units falling and dropping.
  • Page 43: Way Air Discharge Cassette Type

    2-way air discharge cassette type Part name Q’ty Shape Part name Q’ty Shape (Be sure to hand this Installation For positioning of ceiling position Installation Manual —— over customers) gauge (United with installation pattern) For heat insulating pipe Pattern fixing For attaching the installation M5 x 16 l Heat insulating pipe...
  • Page 44: Concealed Duct Type

    Concealed duct type Part name Q’ty Shape Part name Q’ty Shape Installation —— —— Washer For hanging down the unit Manual Insulated For heat insulating pipe pipe connecting section Concealed duct high static pressure type Part name Q’ty Shape Part name Q’ty Shape Installation...
  • Page 45: Floor Standing Type

    Floor standing concealed type Part name Q’ty Shape Part name Q’ty Shape Installation Drain receiver —— —— For fix the drain receiver Manual fixing screw Heat For heat insulating the indoor unit For water draining Drain hose insulation pipe connections (Attaches to the drain receiver.) Heat insulated For insulating the drain receiver...
  • Page 46: Installation Space

    6-3. 4-Way Air Discharge Cassette Type Installation space Secure the specified space in the figure for installation and servicing. 1000 or more 1000 or more Obstacle Model MMU- A mm AP0091H to AP0301H 271 or more AP0361H to AP0561H 334 or more Selection of installation place Advice In case of continued operation of the indoor unit under...
  • Page 47: External View

    External view Suction grille (Air suction port) Electric parts box Air discharge port (4-way) 35˚ 381.6 860 to 910 ceiling open dimension 723 hanging bolt pitch For branch duct knockout square hole for Ø150 panel external dimension Round duct (2 positions at right side) Refrigerant pipe Hanging bolt connecting port...
  • Page 48 Ceiling opening and installation of hanging bolts • Considering pipe/wire connecting work inside the ceiling after the indoor unit has been hanged, select an installation place and determine piping direction. • After installation place of the indoor unit has been determined, open the installation hole on the ceiling and install the hanging bolts.
  • Page 49: Installation Of Indoor Unit

    Installation of indoor unit Hanging bolt M10 flat washer (W3/8 or M10) • Attach the nut (M10 or W3/8: Procured locally) and the attached (Accessory) washer (Ø34mm) to the hanging bolt. (W3/8 or M10) • Put washers at up and down of T-groove of the hanging bracket of M10 flat washer the indoor unit to hang the indoor unit.
  • Page 50 6-4. 2-Way Air Discharge Cassette Type Installation space Reserve space required to install the indoor unit and for service work. Keep 5mm or more for clearance between top plate of the indoor unit and the ceiling surface. <Installation space> 5 mm or more Model MMU- Ceiling depth A mm...
  • Page 51 • External view Center of air condition Center of panel main unit REQUIREMENT Electric parts box The hanging bolt pitch on longitudinal direction is not divided at the center with the ceiling opening size. Therefore, check the relational position in the following figure. If relational position is incorrect, the ceiling panel cannot be installed.
  • Page 52 [How to use the attached installation pattern] The installation pattern is attached inside of the package cap. <In case of existing ceiling> Indoor unit Use the pattern for positioning of the ceiling opening hole and the hanging bolt. <In case of new ceiling> Use the pattern for positioning of the opening hole when setting up a new ceiling.
  • Page 53 REQUIREMENT • Using a level vial, etc., confirm the horizontal level of the indoor unit. • Tighten the nut sufficiently, and fix it securely. Level vial Fix securely Installation of ceiling panel (Sold separately) Install the ceiling panel according to Installation Manual attached with it after piping/wiring work has completed. Check that installation of indoor unit and ceiling opening part is correct, and then install it.
  • Page 54 6-5. 1-Way Air Discharge Cassette Type Installation space Removal of transporting rubbers Secure the space required to installation and servicing. <MMU-AP0071YH to AP0121YH> Keep 5mm or more for clearance between top plate of • Before installation of the indoor unit, remove the the indoor unit and the ceiling surface.
  • Page 55: Wired Remote Controller

    External view <MMU-AP0071YH to AP0121YH> Panel external dimension 1050 Ceiling open dimension 1010 Power connecting port Center of panel Drain pipe connecting port (VP25) Hanging bolt 4-M10 Arranged at site Support metal Ceiling panel Ceiling Refrigerant pipe connecting port (Sold separately) bottom surface (Gas side Ø9.5) Refrigerant pipe connecting port...
  • Page 56 External view <MMU-AP0151SH to AP0241SH> Panel external dimension A Ceiling open dimension B Power connecting Center of panel port Drain pipe connecting port Refrigerant pipe (VP25) connecting port (Gas side) J Refrigerant pipe connecting port (Liquid side) K Y view Z view Pitch 200 ×...
  • Page 57 Ceiling opening and installation of hanging bolts • Considering pipe/wire connecting work inside the ceiling after the indoor unit has been hanged, select an installation place and determine piping direction. • After installation place of the indoor unit has been determined, open the installation hole on the ceiling and install the hanging bolts.
  • Page 58 • The used screws when attaching the installation <MMU-AP0151SH to AP0241SH> pattern are used again to install the panel. Check lower side of the indoor unit locates at • Using the ceiling panel fixing screws, fix the position 15mm higher than bottom surface of the installation pattern ceiling board.
  • Page 59 6-6. Concealed Duct Type Installation space Reserve space required for maintenance the indoor unit and service work. 700mm *1 700mm *1 Electric parts box Air filter Air outlet Electric parts box 25mm Ceiling opening Ceiling opening size C size D Notes) *1 Be sure that space with 700mm or more is reserved for attachment/detachment at the...
  • Page 60 External view Drain pipe connecting port for vinyl chloride pipe (Inner dia. 32, VP. 25) Refrigerant pipe connecting port Main unit dimension 800 (Gas side ØF) <Air outlet side> Hanging bolt pitch 700 Hanging bolt Hanging bolt pitch B 4-M10 screw Knock-out hole Ø125 (Arranged locally) (Air take-in port)
  • Page 61: Duct Design

    6-7. Concealed Duct High Static Pressure Type <Overview of duct connection> Duct design NOTE : Parts except air conditioner unit are to be 1. In order to prevent short circuits, design the duct locally procured. work so that the intake and discharge openings Canvas joint Canvas joint are not adjacent to each other.
  • Page 62: Service Space

    Service space Distance from building MMU-AP0721H to AP0961H Service space Check Electric parts box port Service space 600 x 600mm Check port For reference <Square duct> (Procured locally) MMD-0071BH to 0561BH Return Air side Supply Air side For supply G-Ø5 mm holes G-Ø5 mm holes air side For return...
  • Page 63 External view Installing the four 10mm-diameter hanging bolts • Space the hanging bolts according to the dimensions shown in the diagrams below. • Use 10mm-diameter hanging bolts (Required at the site). MMD-AP0181H to AP0481H MMD-AP0721H to AP0961H 4-Ø10 hanging bolt (Local procure) D (Bolt pitch) 4-M10 hanging bolt...
  • Page 64 Wire connection change of fan motor Connecting wire of the fan motor has been connected to [F2] [External static pressure 14mmAq (137Pa)] at shipment of the factory. If it is necessary to change the external static pressure in accordance with duct resistance, change the connection. MMD-AP0181H to AP0481H The brown lead wire is attached to AP0481H.
  • Page 65 6-8. Under Ceiling Type Installation space Secure the specified space in the figure for installation and servicing. 250 or more 250 or more Height of ceiling Set the installable height of the ceiling within 4m, otherwise the air distribution will become poor. Before installation If height of ceiling exceeds 3.5m, hot air becomes 1.
  • Page 66 External view REQUIREMENT Strictly comply with the following rules to prevent damage of the indoor units and human injury. • Do not put a heavy article on the indoor unit. (Even units are packaged) • Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc.
  • Page 67 Installation of hanging bolts Pipe knockout hole Use M10 hanging bolts (4 pcs, to be local procure). • In case of taking pipe from the rear side Matching to the existing structure, set pitch * Cut off the groove section with a plastic cutter, according to size in the unit external view as shown etc.
  • Page 68 2) Hang the unit to the hanging bolt as shown the Installation of indoor unit figure below. • Preparation before holding down main unit * Confirm the presence of the ceiling material beforehand because the fixing method of hanging metal when the ceiling material is set differs from that when the ceiling material is not set.
  • Page 69 6-9. High Wall Type Installation space Reserve space required to install the indoor unit and for service work. Keep 300mm or more for clearance between top plate of the indoor unit and the ceiling surface. 300 or more 300 or more The transport brackets are provided.
  • Page 70 The lighting time setup of the filter sign (Notification of filter cleaning) of the remote controller can be changed according to the condition of installation. If the room is not heated due to the installation place or construction of the room, the detection temperature of heating can be raised. For setup method, refer to “Change of lighting time of filter sign”...
  • Page 71 • To increase effect of drain, confirm the unit is • The mass including installation plate of the indoor installed horizontally or slightly lowering rightward unit is shown in the following table. Check whether viewed from the front side. the wall has sufficient intensity. Model MMK- Mass (kg) 0071H to 0121H...
  • Page 72 Installation of indoor unit n In case of rear and right direction piping Hang up (1) Pass the drain pipe through the wall hole, and hang the indoor unit to the top end of the installation plate. Installation plate (2) Check that top end of the installation plate is inserted in by moving the indoor unit to left and right sides.
  • Page 73 6-10. Floor Standing Cabinet Type Installation space and service space 200mm 500mm or more or more Front side Front side (In case of right direction piping) <Indoor unit> • Install an indoor unit as described below. <Good installation> <Poor installation> 1.
  • Page 74 6-11. Floor Standing Concealed Type Before installation REQUIREMENT • A drain filter to prevent drain clogging is attached to the indoor unit. Since the drain filter is attached outside of the unit, clogging due to dust, foreign matters may occur during work, be sure to clean the strainer before delivery.
  • Page 75 External view Lower refrigerant piping port (50 × 100 knockout hole) Hole for floor fixing (2-Ø10) Operation switch section (Sold separately) 10 × 20 long hole Air outlet port Hole for wall fixing × 2 (with Ø22 knockout hole) Power supply cord hole Hole for (Ø26 knockout)
  • Page 76 In case of fixing indoor unit to floor In case of fixing indoor unit to wall <Indoor unit viewed from overhead> <Indoor unit viewed from front side> (Front side) (Floor) Hole is provided to rear side. Model MML- Model MML- AP0071BH to AP0121BH AP0071BH to AP0121BH AP0151BH to AP0241BH...
  • Page 77 Installation space <Installation space> 200mm 500mm or more or more REQUIREMENT Front side When using the air conditioner under condition of Front side high humidity, attach the thermal insulator to the side face and the rear side of the indoor unit. (In case of right direction piping) Unit fixing bolt •...
  • Page 78 In case of fixing the indoor unit to the floor Use the attached the attached floor fixing bracket to fix the lower right and left sides of the indoor unit to the floor. To fix to the indoor unit, use the side plate screws and use the screw bolts or anchor bolts for fixing to the floor respectively, and then fix the indoor unit at total four positions, two positions for right and left each.
  • Page 79: Outdoor Unit Installation

    7. OUTDOOR UNIT INSTALLATION 7-1. Selecting a Location for Installation CAUTION Check that it is installed at a place where flammable gas does not leak. If gas leaks and accumulates on surroundings of the unit, combustion may be caused. Check that the outdoor unit is fixed to the base. Otherwise, an accident such as falling may be caused.
  • Page 80 Installation space 1. Align the servicing surfaces of the outdoor units and connect them for installation. 2. Considering functions, reserve space necessary for construction and servicing. (The figure at lower right side shows a case that 3 units are installed connectively. Outdoor unit top view Air outlet (Rear side)
  • Page 81 [2] Installation of outdoor unit WARNING • 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. 1. Arrange the outdoor units with 20mm or more 20mm or more 20mm or more intervals.
  • Page 82 3. Do not use four stools to set the four corners. 4. Mount the vibration-proof rubber (vibration-proof block etc.) so that it catch whole the clamping leg. Install the vibration-proof rubber so that bent part of the fixing leg is grounded. Anchor bolt Vibration-proof rubber Bent part of the fixing...
  • Page 83 7-2. Standards for Rooftop Collective Installation When outer wall is taller than outdoor units 1) When a vent is installed Air outlet duct 1000 or more (front) Vent 10mm 20 or 20 or 20 or 20 or or more more more more more...
  • Page 84 When outer wall is shorter than outdoor units 1) One-row installation 800 or less (Front side) 10mm 20 or 20 or 20 or 20 or or more more more more more 2) Two-row installation (Front side) (Front side) 800 or less 10mm 20 or 20 or...
  • Page 85: Applied Control Of Outdoor Unit

    Floor by floor installation (Front) 500 or more 600 or more or more or more or more or more 1) Install the air outlet duct for every outdoor unit. (When a vent is installed, the air outlet duct should be stuck to the vent.) 2) Flap angle of the vent is 20-degree facing down from the horizontal level.
  • Page 86: Electric Wiring

    8. ELECTRIC WIRING WARNING Using the exclusive circuit, a person qualified for electrician shall work for the electric work in conformance with the regulations of the local electric company and the Installation Manual. If there is capacity shortage of the power circuit or incomplete electric work, a fire or 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.
  • Page 87 Power supply specifications • Power supply specifications of outdoor unit Select the power supply cabling and fuse of each outdoor unit from the following specifications: Cable 5-core, in conformance with Design 60245 IEC 66 • Do not connect the outdoor units by crossing outside of them, but connect them via the incorporated terminal block (L1, L2, L3, N).
  • Page 88 Design of control wiring Power supply Single phase (Open) 220-240V 50Hz 220V~60Hz Earth [Central remote controller] (Option) TCB-SC642TLE (For Line 64) Transmission wire for control Connection of shield wire must be connected between outdoor units (Connected to all connecting sections in each outdoor unit) Transmission wire for control Connection of shield wire must be connected between outdoor unit and...
  • Page 89 Design of control wiring 1. All control wiring is 2-core and non-polarity wire. 2. Be sure to use shield wire for the following wiring to prevent noise trouble. • Outdoor-outdoor / indoor-indoor / outdoor-indoor control wiring, Central control wiring. Central control device Super modular multi system Table-1...
  • Page 90 • Specifications of cables for controlling 1. Connect each cable for controlling as shown below. Header Follwer Follwer U3 and U4 terminals U5 U6 U5 U6 U5 U6 are used when a central control which connects each line is adopted. Control wiring Shield wire Shield wire...
  • Page 91 n Single outdoor unit 50Hz Voltage Heat Pump Cooling Nominal Compressor Fan Motor Power Supply Range Model Only model Voltage MMY- MMY- (V-Ph-Hz) MCA MOCP ICF MAP0501HT8 MAP0501T8 400-3-50 4.0 + 4.0 0.60 16.5 — MAP0601HT8 MAP0601T8 400-3-50 4.6 + 4.6 0.60 16.5 —...
  • Page 92 n Single outdoor unit 60Hz Voltage Heat Pump Nominal Compressor Fan Motor Power Supply Range Model Voltage MMY- (V-Ph-Hz) MCA MOCP MAP0501HT7 380-3-60 4.2 + 4.2 0.60 16.5 — MAP0601HT7 380-3-60 4.8 + 4.8 0.60 16.5 — MAP0801HT7 380-3-60 5.4 + 5.4 0.60 20.0 —...
  • Page 93 For Indoor unit power supply (The outdoor unit has a separate power supply.) Item Power supply wiring Model Wire size All models of indoor units 2.0 mm² (AWG#14) Max. 20m 3.5 mm² (AWG#12) Max. 50m NOTE : The connecting length indicated in the table represents the length from the pull box to the outdoor unit when the indoor units are connected in parallel for power, as shown in the illustration below.
  • Page 94: System Wiring Diagram

    n System wiring diagram Power source at outdoor side 3-phase 380–415V, 50Hz 380V, 60Hz Earth leakage breaker Switch Pull box Control transmission line Switch Earth leakage Remote control breaker Power source at indoor side Single phase 220–240V, 50Hz 220V, 60Hz (10) (11) (12)
  • Page 95 Connection of power supply cable with control cable Insert power supply cable and control wire after removing knockout of the piping/wiring panel at front side of the outdoor unit. Knockout for power supply cable Knockout for control wire Piping/wiring panel When insert power supply cable and control wire, protect power supply cable and control wire from edge after removing knockout.
  • Page 96 NOTE 4 or more control wires connected to one terminal is prohibited. U3 U4 Outdoor unit (Header unit) U1 U2 U5 U6 Indoor unit Remote controller NOTE Loop wiring of control wires is prohibited. U3 U4 Outdoor unit (Header unit) U1 U2 U5 U6 Indoor unit Wiring which the...
  • Page 97: Indoor Unit Terminal Board Placement And Wiring

    9. INDOOR UNIT TERMINAL BOARD PLACEMENT AND WIRING n 4-way air discharge cassette type Wiring the indoor unit Be sure to connect wires matching the terminal numbers. Incorrect connection causes a trouble. Treating of wire connecting port Using the attached heat insulator, seal the wire connecting ports. Otherwise, a dewing may be caused. Wiring of remote controller cord A low-voltage circuit is used for the circuit of the remote controller.
  • Page 98: Wiring The Indoor Unit

    n 2-way air discharge cassette type Treating of wiring connecting port Using the attached heat insulator, seal the connecting port of wiring. If sealing is not executed, dewing may Remote controller be caused. • As shown in the figure, seal the wire connecting port with attached heat insulator.
  • Page 99 n Concealed duct type Wiring the indoor unit Be sure to connect wires matching the terminal numbers. Incorrect connection causes a trouble. Wiring to electric parts box • Connect cables to the electric parts box as shown in the following figure R(L) S(N) Notch Hook...
  • Page 100 n Under Ceiling Type Power supply Indoor/Outdoor inter-unit wire/ terminal block Remote controller terminal block R(L) S(N) Cord clamp Cord clamp n High wall type Main P.C. board R(L) S(N) Remote controller Power supply R(L) S(N) cable terminal block Cord clamp Power supply cable Cord clamp Inter-unit cable between indoor and outdoor units...
  • Page 101 n Floor standing cabinet type Electric parts box Connector R(L)S(N) Cord clamp R(L) S(N) (For power supply) n Floor standing concealed type Electric parts box R(L) S(N) Cord clamp Power cable NOTE : Fix the cable clamp matching to the wire size.
  • Page 102: Drain Pipe Installation

    10. DRAIN PIPE INSTALLATION 10-1. Natural Draining 1. The drain pipe should have a downward slope of at least 1/100. 2. The drain pipe should be as short as possible, and routed so that air pockets will not form. Downward slope (at least 1/100) (a drop of 1cm per meter) 1.5m to 2m 3.
  • Page 103 10-4. Drain Trap 1. When a drain pipe is connected to an indoor unit that will create negative pressure (concealed duct high static pressure type), install a drain trap. 50mm 2. Install one drain trap for each indoor unit. (A drain trap that is installed downstream of a junction of drain 50mm pipes from two or more indoor units will be ineffectual.) Plug...
  • Page 104 2) 2-way air discharge cassette type (with built-in drain pump) <When checking after all electrical work has been completed> 1. While the cooling operation is in action, remove the rubber bushing from the water supply opening as illustrated below and then use a water pump Water supply opening or other source to gradually add at least 1200 to...
  • Page 105 5) Under ceiling type Remove the transport brackets before beginning work. CAUTION Insulate drain pipes completely, including the connections. Failure to insulate drain pipes will allow condensation to form. Piping and Insulation Hard polyvinyl chloride pipe <Indoor unit> Heat insulator Hard polyvinyl chloride pipe ;...
  • Page 106 CAUTION Tightly closing the nylon band will lessen the effectiveness of the insulation. Only tighten the nylon band to the extent that it does not change the shape of the insulation. CAUTIONS 1. Because the drain is a gravity drain, make sure that the piping outside of the unit has a downward slope. 2.
  • Page 107 Piping and Insulation Arrange for the following materials on site for the pipe installation and insulation work. Hard polyvinyl chloride pipe ; Piping nominal dia. (inner dia.) : Ø20mm Hard polyvinyl chloride pipe Heat insulator Heat Vesicant polyethylene : insulator Thickness ;...
  • Page 108 7) Floor standing cabinet type Hard polyvinyl chloride pipe ; Piping nominal dia. (inner dia.) : Ø20mm Heat Vesicant polyethylene : insulator Thickness ; 6mm or more 1. Because the drain is a gravity drain, the pipes outside of the unit must have a downward slope. 2.
  • Page 109 10-6. Cautions Concerning High Drains Observe the following cautions when installing a drain pipe to a drain that is higher than the unit. 1) Cautions on drain installation work 1. The unit must be installed horizontally. 2. The height to the drain outside the unit must be within the specified limit. 3.
  • Page 110: Adjustment Of Air Direction

    11. ADJUSTMENT OF AIR DIRECTION As the characteristics of air, cool air collects at lower levels, and hot air collects at higher levels. CAUTION Set the louver so that air blows out horizontally. If cooling operation is performed with the louver blowing air downwards, the air outlet or surface of the louver will be wet with dew, and dewdrop may fall down.
  • Page 111: In Cooling Operation

    [1-way Air Discharge Cassette Type] <Up/Down air direction adjustment> Auto louver : • When pushing LOUVER switch, the discharge louver operates auto- matically. This increases the cooling/heating effect. • The louver operation switch can be handled only while the operation lamp (Green) goes on.
  • Page 112 [Under Ceiling Type] <Up/Down air direction adjustment> Auto louver : • When pushing LOUVER operation switch on the remote controller, the discharge louver operates automatically. This increases the cooling/heating effect. • The louver operation switch can be handled only while the operation lamp (Green) goes on.
  • Page 113: In Heating Operation

    <Left/Right air direction adjustment> When you change the blowout direction to left/right, direct the vertical grille inside of the discharge louver to desired direction. [Floor Standing Cabinet Type] J In cooling operation In cooling operation, use the discharge louver with upward set point so that cool air diffuses the whole room.
  • Page 114: Address Setup

    12. ADDRESS SETUP In this air conditioner, it is necessary to set up the indoor address before starting the operation. Set up the address in the following procedure. CAUTION 1. Set up address after wiring work. 2. Be sure to turn on the power in order of indoor unit → outdoor unit. If turning on the power in the reverse order, a check code [E19] (Error of No.
  • Page 115 REQUIREMENT Group control over (Example) multiple refrigerant systems • When a group control is performed over the multiple Wire refrigerant systems, be sure to turn on the power systematic supplies of all the indoor units connected in a group in Outdoor Outdoor diagram...
  • Page 116 ˆ When address setup has finished in all the systems, Header unit interface P.C. board turn off SW30-2 on the interface P.C. boards of the header outdoor units of the systems connected to the SW30 identical central control except a system with least SW30 address number.
  • Page 117 2. Manual address setup from remote controller In case to decide an address of the indoor unit prior to finish of indoor electric wiring work and unpracticed outdoor electric wiring work (Manual setup from wired remote controller) Arrange indoor unit in which address Turn on the power.
  • Page 118 Note 1) When setting the line address from the wired remote controller, do not use address 29 and 30. The address 29 and 30 cannot be set up in the outdoor unit. Therefore if they are incorrectly set up, a check code [E04] (Indoor/outdoor communication circuit error) is output.
  • Page 119 2. When you want to know position of the indoor unit using the address • To confirm the unit numbers in a group control; <Procedure> (Operation while the air conditioner stops) The indoor unit numbers in a group control are successively displayed, and the corresponding indoor fan is turned on. Push buttons simultaneously for 4 seconds or more.
  • Page 120 4. Address setup example (Super MMS) [Automatic address / Manual address setup example] Individual control Automatic address setting Available Available Outdoor Line address Outdoor Outdoor Indoor Indoor Indoor Indoor Master Master Master Side Master Side Line address Indoor Indoor unit address Group address * RC: Remote Controller Automatic address setting...
  • Page 121: Group Control

    Group control Automatic address setting Available Available Available Outdoor Line address Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Indoor Indoor Receiver Receiver unit unit (Side) Master Master Wireless Wireless Line address Indoor Indoor unit address Group address Central control (Multiple refrigerant systems) Automatic address setting Available Available...
  • Page 122 Group control over other refrigerant systems Automatic address setting Available Outdoor Line address Outdoor Outdoor Outdoor Indoor Indoor Indoor Indoor Indoor Indoor Indoor Master Line address Indoor Indoor unit address Group address *1 In case of group control over refrigerant systems, automatic address setting is available only when all indoor units connected to a group control are turned on during address setting.
  • Page 123 5. Change of indoor address from wired remote controller • To change the indoor address in individual operation (Wired remote controller : Indoor unit = 1 : 1) or group control (When the setup operation with automatic address has finished, this change is available.) <Procedure>...
  • Page 124 • To change all the indoor addresses from an arbitrary wired remote controller; (When the setup operation with automatic address has finished, this change is available.) Contents : Using an arbitrary wired remote controller, the indoor unit address can be changed for each same refrigerant cycle line ∗...
  • Page 125 6. Clearance of address (Return to status (Address undecided) at shipment from factory) Method 1 An address is individually cleared from a wired remote controller. “0099” is set up to line address, indoor address, and group address data from the wired remote controller. (For the setup procedure, refer to the above-mentioned address setup from the wired remote controller.) Method 2 Clear the indoor addresses in the same refrigerant line from the outdoor unit.
  • Page 126 7. In case of increase the address-undefined indoor units (Extension, etc.) If set up the indoor address of which address is undefined accompanied with extension of indoor units, replace- ment of P.C. board, etc, follow to the methods below. Method 1 Set up an address individually from a wired remote controller.
  • Page 127 12-1. Address re-setup for central control of the super-digital inverter and the digital inverter POINT 1 When controlling collectively the super-digital inverter and the digital inverter, the adaptor named “1 : 1 model” connection interface (TCB-PCNT30TLE) is necessary. 1. Cabling connection of control wiring Attach an adaptor per 1 group control operation (including individual control).
  • Page 128 POINT 2 After automatic address setup, it is necessary to change the line address from the wired remote controller for each system. (Manual re-setup) Reason : After automatic address setup, all the line addresses become “1” except a group control and then a duplicated address error “E08”...
  • Page 129 POINT 3 When the central control is performed for indoor units of twin/triple control in a group control, it may be required to change the group address. (Adaptor is attached to the header unit.) Reason : The central control device communicates with individual indoor unit, header indoor unit of the group control, and header indoor unit of twin control.
  • Page 130 Case 1 (In case that the indoor unit in which the fan is turned on and the unit with the adaptor are same) As the central control is available, push button. (Setup is determined.) When pushing the button, the display disappears and the status returns to the normal stop status. (The operation on the remote controller is not accepted for approx.
  • Page 131 Indoor address change example (Super-digital inverter and digital inverter) 1. In case of central control up to 29 refrigerant systems (including No. of Super MMS systems) POINT 1) Change the line address for each refrigerant system. Central control devices Refrigerant system Outdoor Outdoor Outdoor...
  • Page 132 2. In case of central control over 30 refrigerant systems (including No. of Super MMS systems if any) ∗ Change operation is same to the above 1 up to 29th refrigerant system. POINT 1) Change the line address for each refrigerant line. POINT 1) Set all the line addresses to 30 for all indoor units attached with adaptor.
  • Page 133: Test Operation

    13. TEST OPERATION Before test operation WARNING To protect the compressor at starting time, keep power-ON condition before 12 hours or more. • Before turning on the power supply, carry out the following items. 1) Using 500V-megger, check there is 1MΩ or more between the terminal block of the power supply and the earth.
  • Page 134 How to execute test operation • To carry out a fan operation in a single indoor unit, turn off the power once, short CN72 on P .C. board, and then turn on the power again. (Start the unit in FAN mode.) In this case, do not forget to clear short-circuit of CN72 after test operation.
  • Page 135: Test Operation Check

    13-1. Test Operation Check 13-1-1. Fan Check START Push [START/STOP] button. When an error code has been displayed on the remote controller, remove the error cause referring to “Check code and check position displayed on remote controller and outdoor unit”. Select the operation mode [FAN].
  • Page 136 13-1-2. Cooling/Heating Test Operation Check The cooling/heating test operation check can be performed on both remote controller and outdoor interface P .C. board. 1. Test operation start/stop operation <Test operation from remote controller> Wired remote controller : Refer to the lower items in “Test operation” of wired remote controller. Wireless remote controller : Refer to the lower items in “Test operation”...
  • Page 137 Wireless remote controller (4-way Air Discharge Cassette type) Turn off power of the air conditioner. Remove the adjust corner cap attached with sensor section from the ceiling panel. For removing method, follow to the installation manual attached to the ceiling panel. (Be careful to handle the sensor section because cables are connected to the sensor section.) Remove the sensor cover from the adjust corner cap.
  • Page 138 2. Test operation START Refer to “Test operation procedure” of Execute a test operation for an indoor unit. indoor remote controller. The operation does not start approx. 3 minutes The operation starts. after power-ON or operation stop. (NOTE) After power-ON, it may require Max. 10 minutes to start the operation due to the initial communication of the system.
  • Page 139 (NOTE 1) Criterion for difference between suction and discharge temperature 1. Cooling After operation for minimum 30 minutes with [COOL] mode, if there is the dry bulb temperature difference T: 8°C or more between suction port and discharge port of the indoor unit, it is normal. (In Max-Hz operation) 2.
  • Page 140: Support Function In Test Operation

    14. SUPPORT FUNCTION IN TEST OPERATION 14-1. 7-segment display function of outdoor unit (I/F P.C. board) n 7-segment display on the outdoor unit (Interface P.C. board) On the interface control P .C. board, 7-segment LED to check the operating status is provided on the control P .C. board.
  • Page 141 1. System information data display (Displayed on the header outdoor unit only) SW01 SW02 SW03 Display contents Used refrigerant Displays type of used refrigerant. Model with refrigerant R410A Model with refrigerant R407C System capacity [ 5] to [48] : 5 to 48HP [HP] No.
  • Page 142 2. Outdoor unit information data display (Displayed on each outdoor unit) SW01 SW02 SW03 Display contents Error data Displays outdoor unit number: [U1] to [U4] Displays check code (Latest code only is displayed.) There is no check code: [– – –] There is auxiliary code: Check code [∗...
  • Page 143 3. Outdoor cycle data display (Displayed on each outdoor unit) SW01 SW02 SW03 Display contents Pd pressure data Pd pressure (MPaG) is displayed with decimal data. (MPaG: Approx. 1/10 value of kg/cm G data) ∗. ∗ ∗ P d. ∗. ∗ ∗ Ps pressure data Ps pressure (MPaG) is displayed with decimal data.
  • Page 144 5. Indoor unit information data display (Displayed on the header unit only) SW01 SW02 SW03 Display contents Receiving time: [ … … 1], Not received: [ … … … ] 1 to 16 1 to 3 Receiving status of indoor BUS communication Indoor check code No check code: [–...
  • Page 145: Service Support Function

    14-2. Service Support Function 14-2-1. Check Function for Refrigerant Pipe and Control Communication Line This function is provided to check misconnection (Wiring over lines) of the refrigerant pipes and the control transmission line between indoor unit and outdoor unit by using the switch on the interface P.C. board of the header unit.
  • Page 146 (7-segment display) Operation start Push the push-switch SW04 on the interface P.C. board of the header unit for 2 seconds or more. The operation starts. Operation Cooling [ C Check that cooling is [ CC] and heating is [ HH] on 7-segment display [B].
  • Page 147 14-2-2. Function to Sstart/Stop (ON/OFF) Indoor Unit from Outdoor Unit The following functions of the indoor unit can start or stop by operation of the switches on the interface P .C. board of the header unit. Function Outline Setup/Release 7-segment display Cooling test Changes the mode of all the connected indoor [Setup]...
  • Page 148: Operation Procedure

    1. Cooling test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system to the cooling test operation mode by using switches on the interface board of the header unit. <Operation procedure>...
  • Page 149 2. Heating test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system to the heating test operation mode by using switches on the interface board of the header unit. <Operation procedure>...
  • Page 150 3. Batch start/stop (ON/OFF) function This function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface board of the header unit. <Operation procedure> Power ON Be sure to turn on power at the outdoor side after power-ON of indoor unit. If an error is already displayed under condition of SW01 [1], SW02 [1], SW03 [1], return the status to normal one according to troubleshooting and then...
  • Page 151 4. Individual start/stop (ON/OFF) individual test operation function This function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system by using switches on the interface board of the header unit. Set SW01 [16] and set SW02 and SW03 to indoor address No. (1 to 64) to be started (Refer to the following table*) - only the setup indoor unit starts operation.
  • Page 152: Remote Controller Distinction Function

    14-2-3. Remote Controller Distinction Function This function is provided to distinguish the remote controller connected from the outdoor unit to the indoor unit for a refrigerant line using switches on the interface P .C. board of the header unit. <Distinction procedure> Be sure turn on the power of the indoor unit prior Power ON to the power of the outdoor unit.
  • Page 153: Outdoor Unit

    14-2-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch opera- tion on the interface P .C. board of the header unit. After then, it is also used to open PMV fully when turning off the power and executing an operation.
  • Page 154 14-2-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit This function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switch opera- tion on the interface P .C. board in the outdoor unit. When checking there is no refrigerant clogging with ON/OFF operation of the solenoid valve, use this function.
  • Page 155: Fan Operation Check In Outdoor Unit

    14-2-7. Fan Operation Check in Outdoor Unit This function is provided to forcedly operate the fan in the outdoor unit by the switch operation on the interface P .C. board in the outdoor unit. The frequency of the fan can be controlled by setup of the switch. Therefore utilize this function to check the operation or abnormal sound in the fan system.
  • Page 156 14-2-8. Abnormal Outdoor Unit Discrimination Method <By Fan Operating Function> This function is provided to forcedly operate the fan of the outdoor unit in which an error occurred or the fan of the normal outdoor unit by the switch operation on the interface P .C. board in the header unit. To specify which one of the follower units connected to the system was erroneous while the system stops due to a follower error (Check code [E28]), use this function.
  • Page 157: Monitor Function Of Remote Controller Switch

    14-2-9. Monitor Function of Remote Controller Switch When using a remote controller with the model name RBC-AMT21E, the following monitor functions can be used. <Calling of display screen> [Contents] The temperature or the operation status of the remote controller, indoor unit, or each sensor of the outdoor unit can be known by calling up the service monitor mode from the remote controller.
  • Page 158: Sensor Characteristics

    14-3. Sensor Characteristics 14-3-1. Outdoor Unit n Temperature sensor characteristics Characteristic-2 Characteristic-4 Outdoor TS1, TO, TL sensors Outdoor TD1, TD2, TK1, TK2, TK3, TK4 sensors 60 100 110 120 130 140 150 Temperature [ C] Temperature [ C] Characteristic-5 Outdoor TE1 sensor 90 100 Temperature [ C]...
  • Page 159 n Pressure sensor characteristics • I/O cable connection table High pressure side (Pd) Low pressure side (Ps) Pin No. I/O name Lead cable color I/O name Lead cable color OUTPUT White — — — — OUTPUT White Black Black • Output voltage — Pressure High pressure side (Pd) Low pressure side (Ps) 0.5 to 3.9 V...
  • Page 160: Pressure Sensor Output Check

    14-4. Pressure Sensor Output Check 14-4-1. Outdoor Unit n Pd sensor characteristics 0 to 4.41MPa (0.5 to 5V output with 0 to 4.41MPa) ‚ ƒ ƒ Voltage check between CN501 pins on the outdoor unit I/F P .C. board (Tester – rod at pin side) VOLT VOLT...
  • Page 161 14-4-2. Outdoor Unit n Ps sensor characteristics 0 to 1.47MPa (0.5 to 5V output with 0 to 1.47MPa) ‚ ƒ ƒ Voltage check between CN500 pins on the outdoor unit I/F P .C. board (Tester – rod at pin side) VOLT VOLT VOLT...
  • Page 162: Troubleshooting

    15. TROUBLESHOOTING Confirmation and check CODE No. When a trouble occurred in the air conditioner, the check code and the indoor unit No. appear on the UNIT No. display part of the remote controller. R.C. The check code is only displayed during the opera- tion.
  • Page 163: Check Code List

    Check method On the remote controller (Main remote controller, Central control remote controller) and the interface P .C. board of the outdoor unit, a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P .C. board) to display the operation is provided. Therefore the operation status can be known. Using this self-diagnosis function, a trouble or position with error of the air conditioner can be found as shown in the table below.
  • Page 164 Check code Wireless remote controller Sensor block display Main Outdoor 7-segment display Check code name Judging device AI-NET central remote of receiving unit controller control display display Sub-code Operation Timer Ready Flash ¤ ¤ — — Indoor TCJ sensor error Indoor ¤...
  • Page 165 — — — — equipment control interface Group control branching unit error Differs according to error contents of unit with occurrence of alarm TCC-LINK — — (L20 is displayed.) Duplicated central control addresses Terminology TCC-LINK : TOSHIBA Carrier Communication Link.
  • Page 166 New check code 1. Difference between the new check code and the current system The displaying method of the check code changes in this model and after. Check code in current system New check code Used characters Hexadecimal notation, 2 digits Alphabet + Decimal notation, 2 digits ...
  • Page 167: Air Speed Characteristics

    16. AIR SPEED CHARACTERISTICS n Air Speed Distribution 4-way air discharge cassette type MMU-AP0091H, AP0121H MMU-AP0151H 0.3m/s 2.7m 2.8m 0.7m/s 0.5m/s 0.5m/s 0.7m/s 0.3m/s MMU-AP0181H MMU-AP0241H, AP0271H 2.7m 3.6m 0.7m/s 0.7m/s 0.5m/s 0.5m/s 0.3m/s 0.3m/s MMU-AP0301H MMU-A0361H 3.6m 3.6m 0.7m/s 0.7m/s...
  • Page 168 n Air Speed Distribution 2-way air discharge cassette type MMU- MMU- AP0071WH, AP0091WH, AP0121WH AP0151WH, AP0181WH 2.7m 2.7m Horizontal distance (m) Horizontal distance (m) MMU-AP0241WH, AP0271WH 2.7m Horizontal distance (m) MMU-AP0481WH MMU-AP0301WH Horizontal distance (m) Horizontal distance (m)
  • Page 169 n Air Speed Distribution 1-way air discharge cassette type MMU-AP0071YH, AP0091YH, AP0121YH H (High wind, L (Low wind, H (High wind, L (Low wind, blowing downward) blowing downward) blowing horizontally) blowing horizontally) 2.7m 2.7m 2.7m 2.7m MMU-AP0151SH,AP0181SH MMU-AP0241SH 2.7m 2.7m Under ceiling type MMC-AP0181H,AP0481H MMC-AP0361H...
  • Page 170 n Discharge Air Speed and Air Throw High wall type MMK-AP0071H, AP0091H, AP0121H MMK-AP0151H, AP0181H Horizontal discharge Initial speed High wind : 5.0m/s Horizontal discharge Initial speed High wind : 5.0m/s Med. wind : 4.4m/s Med. wind : 4.4m/s Horizontal throw (m) Horizontal throw (m) MMK-AP0241H Horizontal discharge Initial speed High wind : 5.0m/s...
  • Page 171 n Air Speed Distribution Floor standing type MMF-AP0151H,AP0181H MMF-AP0241H,AP0271H 0.5m/s 0.5m/s 1.5m/s 1.0m/s 0.7m/s 1.0m/s 1.5m/s MMF-AP0361H MMF-AP0481H,AP0561H 0.5m/s 1.0m/s 1.0m/s 1.5m/s 2.0m/s 1.5m/s 1.5m/s 1.5m/s...
  • Page 172: Fan Characteristics

    17. FAN CHARACTERISTICS • Concealed Duct Standard type In case of square duct flange of discharge section MMD-AP0071BH, AP0091BH MMD-AP0121BH Standard air volume: 480m³/h Standard air volume: 570m³/h Long life filter Long life filter Air volume (m³/h) Air volume (m³/h) MMD-AP0151BH MMD-AP0181BH Standard air volume: 650m³/h...
  • Page 173 MMD-AP0241BH, AP0271BH MMD-AP0301BH Standard air volume: 1140m³/h Standard air volume: 1260m³/h Long life filter Long life filter 1000 1140 1200 1100 1260 1300 Air volume (m³/h) Air volume (m³/h) MMD-AP0361BH MMD-AP0481BH, AP0561BH Standard air volume: 1620m³/h Standard air volume: 1980m³/h Long life filter Long life filter 1200...
  • Page 174 • Concealed Duct High Static Pressure type MMD-AP0181H MMD-AP0241H, AP0271H Standard air volume: 900 m³/h Standard air volume: 1,320 m³/h 50Hz 50Hz 60Hz 60Hz 1,320 1,000 1,100 1,000 1,100 1,200 1,300 1,400 1,500 1,600 Air volume (m³/h) Air volume (m³/h) MMD-AP0361H MMD-AP0481H Standard air volume: 2,100 m³/h...
  • Page 175 MMD-AP0721H Standard air volume : 3600m³/h High static pressure tap (60Hz) Medium static pressure tap (60Hz) Low static pressure tap (60Hz) High static pressure tap (50Hz) Medium static pressure tap (50Hz) Low static pressure tap High static pressure tap (50Hz) High static pressure tap (60Hz) Medium static pressure tap (50Hz) Medium static pressure tap (60Hz)
  • Page 176: Applied Control

    18. APPLIED CONTROL 18-1. Indoor Unit 18-1-1. Setup of Selecting Function in Indoor Unit (Be sure to Execute Setup by a Wired Remote Controller) <Procedure> Execute the setup operation while the unit stops. UNIT Push , and buttons simultaneously for 4 seconds or more. The firstly displayed unit No.
  • Page 177 Table: Function selecting item numbers (DN) (Items necessary to perform the applied control at the local site are described.) Item Description At shipment Filter sign lighting 0000 : None 0001 : 150H According to type time 0002 : 2500H 0003 : 5000H 0004 : 10000H Dirty state of filter 0000 : Standard...
  • Page 178 18-2. Applied Control in Outdoor Unit The following functions become available by setting the switches on the outdoor interface P.C. board. Function Switch No. Outdoor fan high static pressure shift SW10 Cooling priority, Heating priority control SW11 1, 2 <Interface P.C. board of outdoor unit> <Switch position magnified drawing>...
  • Page 179: Specifications

    18-2-1. Outdoor fan High Static Pressure Shift n Usage/Features This function is set when connecting a duct to discharge port of the outdoor unit. n Setup Turn “Bit 2” of the Dip switch [SW10] on the interface P.C. board of the outdoor unit to ON side. For the outdoor units which are connected with the ducts, set this function regardless of the header unit or follower unit.
  • Page 180 2. Indoor unit setup in “Specific indoor unit priority” mode The setup can be changed during stop of operation. (Be sure to stop the system.) CODE No. SET DATA UNIT No. R.C. UNIT Procedure Operation contents When pushing buttons at the same time for 4 seconds or more, as shown in the figure, the display section flashes after a while confirm the displayed item code is [ •...