Mitsubishi Electric BDT CITY MULTI Installation And Pre-Commissioning Booklet
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Mitsubishi Electric BDT CITY MULTI Installation And Pre-Commissioning Booklet

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CITY MULTI INSTALLATION AND
PRE-COMMISSIONING BOOKLET
The BDT & Mitsubishi Electric Partnership –
Delivering superior technology together
Since it's founding in 1981, BDT has partnered with Mitsubishi
Electric to exclusively supply their products to the New Zealand
market. With over 30 years of partnership Mitsubishi Electric and
BDT hold a strong relationship which recognises the importance of
well trained, highly skilled technical support staff. Both companies
share the belief that quality support strengthens the product by
providing valuable design, installation, service and maintenance
information quickly and efficiently. BDT engineers and support staff
undergo regular factory training to confidently ensure that we are
supplying the most up to date and quality advice.
Confidential
This document has been designed, and can only be used as a guide
and as a singular reference tool for the Mitsubishi Electric City
Multi installation project that it was intended for.
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Summary of Contents for Mitsubishi Electric BDT CITY MULTI

  • Page 1 Confidential This document has been designed, and can only be used as a guide and as a singular reference tool for the Mitsubishi Electric City Multi installation project that it was intended for.
  • Page 2 Labour charges will be set as a singular reference tool for the Mitsubishi Electric City at $75.00 + GST per hour. Multi installation project that it was intended for.

  • Page 3: Table Of Contents

    CONTENTS SECTION A Installation Requirements and Procedures Practice Piping Procedure Twinning Kit Piping Piping Limitations Outdoor Unit Spacing Mounting of Outdoor Units Wiring Procedure Power Supply Indoor and Outdoor Units Inputs and Outputs M-Net Wiring Procedure M-Net Addressing Piping and Wiring Schematics Additional Refrigerant Calculations Dip Switches Auto Changeover...

  • Page 4: Practice Piping Procedure

    PRACTICE PIPING PROCEDURE [R410A] 01. PIPE RUN PLANNING Planning of pipe runs should take into account the following criteria: PIPE: BENDS: Minimise the number of bends. Ensure all soft drawn bends All pipe used in R410A installations is to comply with are made with the correct size benders and are of full internal AS/NZ Standard 1677 Part 2.
  • Page 5 R410A flare nuts must also be used. Failure to do so can cause joint failure and refrigerant loss. Prior to connecting flange and flare connections oil should be applied to the mating faces. Failure to do this causes tearing of the copper flare surface.
  • Page 6 • A two-stage vacuum pump with fresh vacuum pump oil capable of a vacuum of 50 microns should be selected. Where possible it is best engineering practice to have a pump specifically for installations rather than the service pumps which tend to deteriorate during service tasks.
  • Page 7 R2 SERIES TWINNING KIT PIPING Correct piping of the twinning kit is essential to the performance and safety of the equipment installed. It is critical that the instructions below are followed closely as incorrect piping can lead to performance loss and/or catastrophic failure of the compressor. Outdoor unit 1 Outdoor unit 2 High-pressure...
  • Page 8 R2 SERIES TWINNING KIT PIPING (CONTINUED) Installation When the pipes and/or cables are routed at the bottom of the unit, make sure that the through hole at the base of the unit does not get blocked with the installation base. When the pipes are routed at the bottom of the unit, the base should be at least 100 mm [3-15/16 in.] in height.
  • Page 9 0000003417.BOOK 115 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 4. Outdoor Installation AN1 2nd 4-3-6. Twinning on the outdoor unit side • The pipe from multiple outdoor units must be installed so that oil will not accumulate in the pipe under certain conditions. Refer to the figures below for details. * Small dots in the figures indicate branching points.
  • Page 10 Y SERIES TWINNING KIT PIPING Correct piping of the twinning kit is essential to the performance and safety of the equipment installed. It is critical that the instructions below are followed closely as incorrect piping can lead to performance loss and/or catastrophic failure of the compressor. Twinning on the outdoor unit side See the following drawing for connecting the pipes between the outdoor units.
  • Page 11 0000003416.BOOK 55 ページ ２０１４年１１月１１日　火曜日　午前９時３４分 4. Outdoor Installation AN1 2nd Outdoor unit1 Outdoor unit 2 Twinning pipe 1 To indoor unit 200mm [7-7/8 in.] or less Outdoor unit 1 Outdoor unit 2 Outdoor unit 3 Twinning pipe 1 Twinning pipe 2 To Indoor unit 200mm [7-7/8 in.]...
  • Page 12 Y SERIES TWINNING KIT PIPING (CONTINUED) Installation When the pipes and/or cables are routed at the bottom of the unit, make sure that the through hole at the base of the unit does not get blocked with the installation base. When the pipes are routed at the bottom of the unit, the base should be at least 100 mm [3-15/16 in.] in height.
  • Page 13 Twinning on the outdoor unit side The tilt angle of the twinning pipe The tilt angle of the twinning pipe must be within ±15° with the horizontal plane. Tilting the twinning pipe more than specified will cause damage to the unit. The length of the straight part of the pipe before the branching Note: See the following drawing for the fitting For the twinning kit, always use the accessory piping parts.
  • Page 14 R2 SERIES PIPING LIMITATIONS 3-2. Piping Design 3-2-1. If 16 ports or less are in use, I.e., if only one BC controller is in use with no sub BC controller PURY-P-YLM Note1. No Header usable on PURY system. Joint CMY-R160-J1 Liquid side Note2.
  • Page 15 3. Piping Design AN1 2nd 3-2-2. If 16 ports or less are in use, I.e., if only one BC controller is in use with no sub BC controller PURY-EP-YLM Note1. No Header usable on PURY system. Joint CMY-R160-J1 Liquid side Note2.
  • Page 16 R2 SERIES PIPING LIMITATIONS (Continued) 3-2-3. If more than 16 ports are in use, or if there is more than one BC controller in use for one outdoor unit PURY-P-YLM Note1. No Header usable on PURY system. Note2. Indoor unit sized P100-P250 should be connected to BC controller via Y shape joint CMY-R160-J1 ; Joint CMY-R160-J1 Liquid side Note3.
  • Page 17 0000003417.BOOK 103 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 Maximum pipe run 3. Piping Design AN1 2nd 3-2-7. Total piping length restrictions [PURY-P200, 250YLM-A] [PURY-P300, 350YLM-A] 1000 1000 90 100 110 90 100 110 Distance between outdoor unit and BC controller(m) Distance between outdoor unit and BC controller(m) [PURY-P400, 450, 500, 550YSLM-A] [PURY-P600, 650YSLM-A] 1000...
  • Page 18 3. Piping Design AN1 2nd Y SERIES PIPING LIMITATIONS 3-2. Piping Design 3-2-1. PUHY-P200-350YKB-A Piping Note1. No Joint after Header; Piping direct to Indoor Unit from Header; Note2. As bends cause pressure loss on transportation of refrigerant, fewer bends design is better; Piping length needs to consider the actual length and equivalent length which bends are counted.
  • Page 19 3. Piping Design AN1 2nd 3-2-2. PUHY-P400-900YSKB-A Piping Note1. No Joint after Header; Piping direct to Indoor Unit from Header; Note2. As bends cause pressure loss on transportation of refrigerant, fewer bends design is better; Piping length needs to consider the actual length and equivalent length which bends are counted. Equivalent piping length (m)=Actual piping length+"M"...

  • Page 20: Twinning Kit Piping

    Y SERIES PIPING LIMITATIONS (continued) 3. Piping Design AN1 2nd 3-2-3. PUHY-P950-1350YSKB-A Piping Note1. No Joint after Header; Piping direct to Indoor Unit from Header; Note2. As bends cause pressure loss on transportation of refrigerant, fewer bends design is better; Piping length needs to consider the actual length and equivalent length which bends are counted.

  • Page 21: Piping Limitations

    S SERIES PIPING LIMITATIONS PUMY-P-V(Y)KM-A(-BS) REFRIGERANT PIPING TASKS 10-1. REFRIGERANT PIPING SYSTEM Line-Branch Method Connection Examples (Connecting to 4 Indoor Units) Outdoor unit Outdoor Unit First branch First Branch Indoor unit Indoor unit Total Piping Length A+B+C+a+b+c+d [ 300 m Permissible Farthest Piping Length A+B+C+d [ 150 m...
  • Page 22 S SERIES PIPING LIMITATIONS (Continued) PUMY-P-V(Y)KM-A(-BS) Header-Branch Method Connection Examples (Connecting to 4 Indoor Units) Outdoor Unit First Branch Outdoor unit Indoor unit First branch Indoor unit Total Piping Length A+a+b+c+d [ 300 m Permissible Farthest Piping Length A+d [ 150 m Length Farthest Piping Length After First Branch d is 30 meters or less...
  • Page 23 PUMY-P-V(Y)KM-A(-BS) Note: Pipe re-branching after the header branching is not possible. Method of Combined Branching of Lines and Headers Connection Examples (Connecting to 5 Indoor Units) Outdoor unit First branching (branching joint) Branching joint Indoor unit Branching header Blind caps Total Piping Length A+B+C+a+b+c+d+e is 300 meters or less Permissible...
  • Page 24 OUTDOOR UNIT SPACING R2 AND Y SERIES 4-2. Spacing In case of single installation • Secure enough space around the unit as shown in the figure. • If the wall height exceeds the height limit, widen the space labeled "L" and "W" by the amount that exceeds the limit (labeled in the figure). (1) Walls are lower than the height limit.
  • Page 25 0000003417.BOOK 111 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 If in doubt please consult BDT Technical support for 4. Outdoor Installation approval of drawing location AN1 2nd prior to installation. In case of collective installation and continuous installation • When multiple units are installed adjacent to each other, secure enough space to allow for air circulation and passageways between groups of units as shown in the figures.

  • Page 26: Outdoor Unit Spacing

    OUTDOOR UNIT SPACING S SERIES 4. Outdoor Installation G10 2nd 4-2. Spacing PUMY-P112, 125, 140YKM, VKM's external dimension. (Fig.4-2-1) PUMY-P-YKM, VKM can connect Indoor unit sized P15 to P140; and can connect totally 1-12 Indoor units with total capacity ranged 50%-130% of the outdoor unit capacity. Connectable Indoor capacity Connectable Indoor unit PUMY-P112YKM...

  • Page 27: Mounting Of Outdoor Units

    Seismic Restraints and mounting of outdoor units All units have been tri-axial shake table tested in accordance with ICC-ES AC 156 using the standard anchor bolt mounting positions. However, local council regulations relating to seismic mounting may call for additional requirements. Please always confirm and comply with your local regulations and standards.
  • Page 28 S series outdoor unit mounting 4. Outdoor Installation G10 2nd PUMY-P-V(Y)KM-A(-BS) 4-1. Requirement on installation site 4. Outdoor Installation A. Avoid locations exposed to direct sunlight or other sources A. Be sure to install the unit in a sturdy, level surface to of heat.
  • Page 29 Y Series outdoor unit mounting 4. Outdoor Installation AN1 2nd 4-3-2. Installation · Secure the unit with anchor bolts as shown in the figure below so that the unit will not topple over in strong winds or during an earthquake. ·...
  • Page 30 R2 Series Outdoor unit mounting 4. Outdoor Installation AN1 2nd 4-3-2. Installation · Secure the unit with anchor bolts as shown in the figure below so that the unit will not topple over in strong winds or during an earthquake. ·...

  • Page 31: Wiring Procedure

    RECOMMENDED WIRING PROCEDURE Wiring must be installed by Registered Electricians/Technicians and comply with the NZ Wiring Codes and meet the requirements of BDT. Wiring diagram will be provided by BDT. INDOOR UNITS: To MA controller, Each indoor unit will require a 220-240VAC DC 8.7 –...

  • Page 32: Power Supply Indoor And Outdoor Units

    0000003417.BOOK 67 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 Power supply for indoor and outdoor units 1. Electrical work AN1 2nd 1-2. Power supply for Indoor unit and Outdoor unit 1-2-1. Electrical characteristics of Indoor unit Symbols: MCA (Max.Circuit Amps =1.25xFLA), FLA (Full Load Amps) IFM (Indoor Fan Motor), Output (Fan motor rated output) Power supply PMFY-P-VBM-E...
  • Page 33 0000003417.BOOK 68 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 1. Electrical work AN1 2nd Symbols: MCA (Max.Circuit Amps =1.25xFLA), FLA (Full Load Amps) IFM (Indoor Fan Motor), Output (Fan motor rated output) Power supply PEFY-P-VMS1L-E Volts / Hz Range +-10% MCA(A) (50 / 60Hz) Output(kW) FLA(A) (50 / 60Hz) PEFY-P15VMS1L-E 0.46 / 0.46...
  • Page 34 0000003417.BOOK 69 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 Power supply for indoor and outdoor units (CONTINUED) 1. Electrical work AN1 2nd Symbols: MCA (Max.Circuit Amps =1.25xFLA), FLA (Full Load Amps) IFM (Indoor Fan Motor), Output (Fan motor rated output) Power supply PEFY-P-VMH-E-F Volts / Hz Range +-10% MCA(A) (50 / 60Hz) Output(kW)
  • Page 35 0000003417.BOOK 70 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 1. Electrical work AN1 2nd Symbols: MCA (Max.Circuit Amps =1.25xFLA), FLA (Full Load Amps) 1. Electrical work IFM (Indoor Fan Motor), Output (Fan motor rated output) G10 2nd Power supply PFFY-P-VLRM-E Symbols: MCA (Max.Circuit Amps =1.25xFLA), FLA (Full Load Amps) Volts / Hz Range +-10% MCA(A) (50 / 60Hz)
  • Page 36 Power supply for indoor and outdoor units (CONTINUED) 0000003416.BOOK 9 ページ ２０１４年１１月１１日　火曜日　午前９時３４分 1. Electrical work AN1 2nd 1-2-2. Electrical characteristics of Outdoor unit Symbols: MCA (Max Circuit Amps) RLA (Rated Load Amps), SC (Starting Current) Units Power supply Compressor RLA(A)(50/60Hz) PUHY-P-YKB Unit Combination Voltage...
  • Page 37 0000003416.BOOK 10 ページ ２０１４年１１月１１日　火曜日　午前９時３４分 1. Electrical work AN1 2nd Symbols: MCA (Max Circuit Amps) RLA (Rated Load Amps), SC (Starting Current) Units Power supply Compressor RLA(A)(50/60Hz) PUHY-EP-YLM Unit Combination Voltage Output Volts MCA(A) Output(kW) SC(A) Cooling Heating range (kW) PUHY-EP200YLM-A(-BS) 16.1 0.92 8.7/8.3/8.0...
  • Page 38 0000003417.BOOK 71 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 Power supply for indoor and outdoor units (CONTINUED) 1. Electrical work AN1 2nd 1-2-2. Electrical characteristics of Outdoor unit at cooling mode Symbols: MCA (Max Circuit Amps) RLA (Rated Load Amps), SC (Starting Current) Power Units Compressor RLA(A)(50/60Hz) supply...
  • Page 39 0000003417.BOOK 72 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 1. Electrical work AN1 2nd 1-2-3. Electrical characteristics of BC controller Symbols: MCA (Max. Circuit Amps), MFA (Max. Fuse Amps), RLA (Rated Load Amps) Power supply BC controller RLA(A) Volts Range+-10% MCA(A) MFA(A) 0.31 CMB-P104V-G1 0.45 0.34 0.36 0.38...

  • Page 40: Inputs And Outputs

    0000003415.BOOK 108 ページ ２０１４年１０月１５日　水曜日　午前９時４分 INPUTS AND OUTPUTS 4. System component AN1 2nd OUTDOOR UNIT WIRING 4-2. Outdoor unit input/output connector INPUTS AND OUTPUTS (CITY MULTI ONLY) 1.Wiring should be covered by insulation tube with supplementary insulation. Caution: 2.Use relays or switches with IEC or equivalent standard. 3.The electric strength between accessible parts and control circuit should have 2750V or more.
  • Page 41 S SERIES OUTDOOR UNIT WIRING INPUTS AND OUTPUTS (CITY MULTI ONLY)
  • Page 42 INPUTS AND OUTPUTS (Continued) INDOOR UNIT WIRING INPUTS AND OUTPUTS (CITY MULTI ONLY)

  • Page 43: M-Net Wiring Procedure

    RECOMMENDED M-NET WIRING PROCEDURE Installation of the M-Net is an essential part of any City Multi installation. The wiring itself is simple but there are a number of basic rules that must be followed to avoid communication problems within the system. ALWAYS FOLLOW THE PIPING AND WIRING SCHEMATICS •...
  • Page 44 RECOMMENDED M-NET WIRING PROCEDURE – CABLE LIMITATIONS AND SYSTEM EXAMPLES...
  • Page 45 RECOMMENDED M-NET WIRING PROCEDURE – CABLE LIMITATIONS AND SYSTEM EXAMPLES 1. Follow all pertinent wiring regulations and safety procedures. 2. Transmission control cables where possible must be 50mm away from mains cable to prevent electrical noise affecting the control circuit. Do not run control and mains in the same conduit. 3.

  • Page 46: M-Net Addressing

    M-NET ADDRESSING All City Multi equipment that sits on the M-Net requires a numerical address. This address allows the system to identify, control, log and allocate faults to an individual piece of equipment. Addressing must be completed at the time of installation prior to commissioning. The address setting is generally carried out by the installation electrician as the addressing rotary switches are located in or close to the electrical terminal boxes.
  • Page 48 M-NET ADDRESSING (Continued) BASIC SYSTEM, M-NET WIRING AND ADDRESSING EXAMPLE:...

  • Page 49: Piping And Wiring Schematics

    PIPING AND WIRING SCHEMATICS Piping and wiring schematics are essential to any new installation. The installer must have these on site during the installation and follow them closely. The schematics identify: • Project name • BDT quote number • Equipment model numbers •...
  • Page 50 EXAMPLE SCHEMATIC...
  • Page 51 REFRIGERANT PIPING TASKS 10-1. REFRIGERANT PIPING SYSTEM ADDITIONAL REFRIGERANT CALCULATIONS (S SERIES) example PUMY-P-V(Y)KM-A(-BS) RIGERANT PIPING TASKS Line-Branch Method Connection Examples (Connecting to 4 Indoor Units) ANT PIPING SYSTEM Outdoor Unit First Branch Indoor unit Total Piping Length A+B+C+a+b+c+d [ 300 m Permissible Units) Farthest Piping Length...
  • Page 52 0000003416.BOOK 44 ページ ２０１４年１１月１１日　火曜日　午前９時３４分 ADDITIONAL REFRIGERANT CALCULATIONS (Y SERIES) example 3. Piping Design AN1 2nd 3-3. Refrigerant charging calculation PUHY-P-YKB At the time of shipping, the outdoor unit is charged with the refrigerant. As this charge does not include the amount needed for extended piping, additional charging for each refrigerant line will be required on site.
  • Page 53 ADDITIONAL REFRIGERANT CALCULATIONS (Y SERIES) example 0000003416.BOOK 45 ページ ２０１４年１１月１１日　火曜日　午前９時３４分 3. Piping Design AN1 2nd Example: PUHY-P350YKB Indoor 1: P125 A: ø12.7 40 m a: ø9.52 10 m 2: P100 B: ø9.52 10 m b: ø9.52 3: P40 C: ø9.52 15 m c: ø6.35 10 m...
  • Page 54 0000003417.BOOK 105 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 3. Piping Design ADDITIONAL REFRIGERANT CALCULATIONS (R2 SERIES) example AN1 2nd 3-3. Refrigerant charging calculation PURY-P-YLM Sample connection (with 3 BC controller and 6 indoor units) (PURY-P700YSLM-A) (Main unit) (Sub unit) Outdoor Twinning kit 5 : P140 BC controller (Sub BC) Joint BC controller (Main BC)
  • Page 55 0000003417.BOOK 106 ページ ２０１４年１０月２２日　水曜日　午前１０時３５分 ADDITIONAL REFRIGERANT CALCULATIONS (R2 SERIES) example 3. Piping Design AN1 2nd • When the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft) Amount of High-pressure pipe High-pressure pipe High-pressure pipe High-pressure pipe...

  • Page 56: Additional Refrigerant Calculations

    ADDITIONAL REFRIGERANT CALCULATIONS • All AHU additional refrigerant calculations must be completed by BDT. The calculation is based on the AHU coil volume (BDT has this data). • Additional refrigerant can be charged into the system while under a vacuum. In some situations the system will equalise to the bottle pressure before all of the additional refrigerant is in the system.
  • Page 57 PUMY-P-V(Y)KM-A(-BS) Operation in Each Switch Setting Switch Step Function Remarks Purpose Additional Information When to Set When the outdoor unit is in HEAT To open the LEV opening higher for units other than in Can be set when A refrigerant noise might be generated ...
  • Page 58 [5-1 Dipswitch Functions and Factory Settings ] DIP SWITCHES OUTDOOR UNITS (Y SERIES) Dipswitch Functions and Factory Settings 5 Control 5-1-1 Outdoor Unit Switch Functions and Factory Settings (1) Control board Function according to switch setting Units that require Switch setting tim- Switch Function switch setting...
  • Page 59 [5-1 Dipswitch Functions and Factory Settings ] Function according to switch setting Units that require Switch Function Switch setting timing switch setting OFF (LED3 Unlit) ON (LED3 Lit) (Note 2) Refer to the following page(s). [9 LED Status 1-10 Self-diagnosis/operation SW6-10: Indicators on the Outdoor Unit Circuit Anytime after power on...
  • Page 60 [5-1 Dipswitch Functions and Factory Settings ] Dipswitch Functions and Factory Settings 5 Control DIP SWITCHES OUTDOOR UNITS (R2 SERIES) 5-1-1 Outdoor Unit Switch Functions and Factory Settings (1) Control board Function according to switch setting Units that require Switch Function Switch setting timing switch setting...
  • Page 61 [5-1 Dipswitch Functions and Factory Settings ] (2) Additional dipswitch settings at time of shipment Function according to switch setting Units that require Switch Function Switch setting timing switch setting OFF (LED3 Unlit) ON (LED3 Lit) (Note 2) SW4 Refer to the following page(s). [9 LED Status 1-10...
  • Page 62 DIP SWITCHES OUTDOOR UNITS (Y and R2 SERIES) [5-1 Dipswitch Functions and Factory Settings ] To change the settings, set SW6-10 to ON, set SW4, and press and hold SWP01 for 2 seconds or longer (OFF↔ON). LED3 will light up when the switch setting is ON, and lights off when OFF. Use the LED3 display to confirm that the settings are properly made....
  • Page 63 DIP SWITCHES INDOOR UNITS...
  • Page 64 COMMON DIP SWITCHES SW1-1 Change the sensing location from the return air to the wall controller. SW1-3 Increase the filter check from 100 hours to 2500 hours. SW1-9 Auto restart after a power cut. SW3-8 4°C heating offset (used for ceiling mounted products to allow for stratification). SW3-1, SW1-7, SW1-8 Change fan speed setting on the indoor unit while in the thermostat OFF position as per the table below.
  • Page 65 Minimum operating frequency adjustment In some low load situations low operating frequency chatter can cause noise concerns. In these situations adjusting the minimum operating frequency may be the best option and will remove this low frequency chatter. However, it is important to know that this may also reduce the minimum operating capacity of some indoor units causing them to have less accurate temperature control.

  • Page 66: Auto Changeover

    Auto changeover - S, Y, WY Series only S, Y and WY series units all have the ability to automatically change operating mode from heating to cooling. There are a number of auto changeover options depending on the system controllers or application. 1.

  • Page 67: Indoor Unit Installation Setting Template

    INDOOR UNIT INSTALLATION SETTINGS template The loose pages in the back of this booklet have indoor unit setting information. These pages must be completed prior to BDT attending site for commissioning. If additional installation setting sheets are required please contact your BDT sales representative. Quote Number Job Name INDOOR UNIT INSTALLATION SETTINGS...
  • Page 68 Stanley Street Building, Auckland...

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