User manual TOSHIBA MAR-F105HTM8-PE DATA BOOK

[. . . ] SMi System Applications Manual SMI-01AE-06-03 Contents General Information Indoor Units ­ General 4-Way Cassette 2-Way Cassette Duct Slim Duct Ceiling High Wall Chassis Low Wall Capacity Correction Outdoor Units/Multi-Controller Piping Design Controls Electrical Wiring Selection Examples Page Chapter 4 9 12 21 25 31 35 39 44 48 52 67 74 81 97 102 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 General Information Introduction 1 Features · Reduced weight, compact design with smaller footprint Optimised for use with the non-ozone depleting refrigerant, R407C Up to 16 individually controlled indoor units to one outdoor unit, with precise temperature control Easy to install and maintain High energy efficiency Unique capability to adjust the sensible heat ratio Latest inverter technology with the Intelligent Power Drive Unit (IPDU) Compatible with RAV indoor units that can operate from 100% down to 10% of maximum rated capacity Up to 160% loading Low noise level · · · · · · The VRF Heat recovery system (MAR-F-105HTM8-PE) Toshiba Air Conditioning is proud to introduce the SMi system, a three-pipe, heat recovery system operating on R407C, and incorporating the latest inverter drive technology. The letter "i" stands for the added intelligence of the Intelligent Power Drive Unit (IPDU). SMi delivers the output of the previous Super Multi system in a smaller, quieter, more sophisticated and energy-efficient outdoor unit. · · · Intelligence Toshiba's SMi system now has added intelligence with the Intelligent Power Drive Unit (IPDU), the latest inverter technology. The Right Solution The Toshiba SMi is a sophisticated system that suits a broad range of commercial air conditioning applications. It can simultaneously heat and cool different zones in a building to meet occupant requirements. [. . . ] of Multi Controllers 4 1 2-4 Loading 100% 105-135%* 105-160%* * Note: As these loadings exceed the 100% threshold, checks must be made to ensure that the loading of all the indoor units is acceptable for the total requirements of all the areas served by the system as a whole, when assuming the appropriate amount of diversity. Refer to the previous section on "Correction for Indoor/Outdoor Loading - Cooling" on page 59 and/or "Correction for Indoor/Outdoor Loading Heating" on page 62. Diversity As different parts of a building are likely to have their peak heat gains/losses at different times of the day, maximum cooling or heating is rarely required from all units simultaneously; therefore diversity is sometimes applied. The ambient temperature is not constant during a 24-hour period, so invariably a system will never be required to run at full-load for 24 hours a day. Usage is another factor to consider when applying diversity: meeting/conference/interview rooms are rarely all used all day and places like canteens are only used during the lunch period. Obviously when these areas are being used, building occupancy is shifted from room to room, so metabolic and small power gains also change. It follows then that the greater the number of areas served by a particular system, the greater the chances of having some diversity. The potential for diversity and heat recovery is also increased when there is a large geographical spread of areas being served by a system. Guideline estimation of diversity: Type of air conditioned space Single space with a single aspect Single space (group control) with multiple aspects Multiple spaces (individual control) of similar construction, uses and aspects Multiple spaces (individual control) of similar construction, uses but with different aspects Multiple spaces (individual control) of similar construction, but with different uses and aspects Diversity 0% 10% 20% 25% 30% 11 Please note that diversity is difficult to predict and is not an exact science, but can be estimated using heat gain/loss calculation packages. Generally speaking 35% diversity (providing 65% of the maximum cooling/heating requirement) is considered to be the upper limit of diversity to assume in comfort cooling situations. 65 CIBSE Psychrometric Chart 66 Outdoor Units · · · Light, compact design with small footprint R407C (HFC) Refrigerant, non-ozone depleting Low sound levels with large diameter stealth fan with streamlined ribs on front edge 20 metre lift capability Energy saving inverter technology with advanced IPDU (Intelligent Power Drive Unit) Twin scroll compressor mounted on sliding tray Individual isolator provided on each unit · · · · Model Cooling capacity Heating capacity Minimum capacity code Maximum capacity code 1 Multi Controller 2, 3 or 4 Multi Controllers Power supply Electrical power required at site Power input, cooling Power factor, cooling Running current, cooling Power input, heating Power factor, heating Running current, heating Peak demand current Sound pressure level Refrigerant type Pipework Suction line O. D. Maximum equivalent length separation Maximum actual piping length Maximum lift Indoor unit above/below Dimensions Footprint Height x width x depth Weight Finish Heat exchanger type Fan type Fan rated air flow @ high speed Compressor type Power input Operating range, cooling/heating l/s (m3/h) kW °C in in in m m m mm mm kg V -ph-Hz kW % A kW % A A dB(A) @ 1 m kW kW MAR-F 105HTM8-PE 28. 0 31. 5 2 27 32 380-415/3/50 Three-phase neutral + earth - integral IP 56 isolator 11. 8 98 17. 4 10. 5 98 15. 5 60 58 R407C Brazed - 1-1/8 Flare - 5/8 Flare - 3/4 120 100 20/50 990 x 790 1700 x 990 x 790 285 Silky shade (IY8. 5-0. 5) Finned tube Sickle-shaped propeller 2778 (10000) Hermetically-sealed twin scroll 7. 5 -5 to 43/-15 to 21 12 67 Outdoor Units Acoustic Data Sound Power Level Sound Pressure Level SPL NR 58 58 52 52 63 Cooling Heating 60. 9 60. 1 125 60. 2 62. 1 250 60. 9 64. 3 500 62. 0 63. 7 1k 63. 4 64. 2 2k 55. 4 56. 6 4k 51. 9 52. 9 8k 44. 7 48. 4 SWL 68. 8 70. 1 Sound Pressure Level Heating Cooling 90 80 Sound pressure level (dB) 70 60 50 40 30 20 10 NC-60 Microphone Position NC-50 NC-40 NC-30 1. 5m NC-20 1m 63 125 250 500 1000 2000 4000 8000 Frequency (Hz) 68 Outdoor Units Dimensional Drawing MAR-F105HTM8 -PE 4-15 x 20 (Slot) 80 Grounding part of bottom plate 755 790 630 Drain opening dimension Fixing bolt positions 80 Grounding part of bottom plate Fixing bolt pitch 700 990 Foundation dimensions 750 110 90 1700 1582 700 601 12 88 568 4-60 x 150 slot Knock outs on both sides of unit 500 Slot pitch Details of piping connections 3-ø 20 cable gland knock outs ø 32 cable gland knock outs ø 25 cable gland knock outs (for transport) Refrigerant pipe connecting port (Gas suction side) braze connection (ø 28. 6) Refrigerant pipe connecting port (Liquid side) flare connection (ø 15. 9) 315 275 Refrigerant pipe connecting port (gas discharge side) flare connection (ø 19. 0) 68 60 114 Note: All dimensions are in mm 69 Outdoor Units Access and Air Flow to Outdoor Units If the Outer Wall is Higher than the Outdoor Unit If a hole can be made in the wall: 600 300 (Front side) 10 20 20 20 20 1. 3. Set an aperture ratio so that suction air volume Vs from the hole becomes 1. 5 m/s or less Height of discharge duct: HD = H - h Pressure drop of discharge duct to be 15 Pa maximum H h HD Discharge duct If a hole cannot be made: Hole in wall 600 300 (Front side) 10 20 20 20 20 1. 3. Set a base with 500 to 1000 mm height Height of discharge duct: HD = H - h Pressure drop of discharge duct to be 15 Pa maximum H h HD Discharge duct Vs Base 500 ­ 1000 Note: All dimensions are in mm 70 1000 Vs Outdoor Units Access and Air Flow to Outdoor Units If the Outer Wall is Lower than the Outdoor Unit 1-line installation 300 500 (Front side) 10 20 20 20 20 800 2-parallel lines installation 300 600 * ( 1000) (Front side) 300 800 10 20 20 20 20 3-parallel lines installation 300 600 * ( 1000) (Front side) 12 600 (Front side) 500 800 10 20 20 20 20 * When refrigerant piping is routed from the front of the unit, distance between outdoor unit and connecting piping must be 500 mm or more. Note: All dimensions are in mm Connecting Piping 500 Piping 500 71 Outdoor Units Transportation of the Outdoor Unit Fork Lift · Front Access ­ insert the forks into the slots on the fixing legs. · Side Access ­ see diagram. Front Access Side Access Fork lift Fork lift/ Hand Truck Fixing Leg Crane · Check the suitability of the lifting rope (see table). Protect the unit where rope contact could scratch or deform it. Protection Model Number MAR-F-105HTM8-PE Weight 285 kg Rope Protection Transportation Slots 72 Multi Controller Installation The three pipes from the outdoor unit are connected to the Multi Controller which then controls the flow of the refrigerant to each of the indoor units. It also acts as a wiring centre for the indoor units, making the provision of a separate power supply unnecessary. The Multi Controllers have three (RBM-Y1034-PE) or four ways ((RBM-Y1044F-PE). Whilst all of the suction pipework within the Multi Controller is insulated to prevent condensation forming, when any unit is cooling, as a precaution a heater element is fitted to the base of the Multi Controller to evaporate any moisture that may collect in the base. As standard, a maximum of two Multi Controllers can be connected to the outdoor unit, however by using the dual interface (RBC-DIF1-PE) this can be increased to a maximum of four. Wiring from two Multi Controllers is taken to the dual interface, and one cable is then taken to the outdoor unit. The location of the Multi Controller should be carefully considered to ensure good all-round access, should any of the valves or sensors require replacing. If the Multi Controllers are to be installed above a false ceiling, then an access panel bigger than the Multi Controller will be required. Precautions Avoid installing the Multi Controller in the following locations: · · · · · · · Where rainwater may penetrate the unit. [. . . ] This means that we are providing 93% of the total cooling requirement. The meeting room is unlikely to be used all day, every day and as each area will have individual control and similar uses, 7% diversity does not seem unreasonable, so one SMi condenser can be used. For seven indoor units, each requiring individual control, one 3-Way Multi-Controller and one 4-Way Multi-Controller can be used. Each floor has nine rooms and each room requires a ducted unit with 1. 8 kW total cooling capacity when set at medium fan speed. [. . . ]