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Sakura SFP KM EC Series Technical Installation Manual

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Sakura Air Conditioner
Sakura Air Conditioner
User-friendly, Earth-friendly
User-friendly, Earth-friendly
Panel (Type-B) 680×680
Ref, S- 160 / 03 / 10 (H)
Panel (Type-B) 830×830
Panel (Type-A) 680×680
Hydronic Cassette
SFP - KM - EC Series
( Technical / Installation Manual )
Panel (Type-B) 680×1240
Panel (Type-A) 680×1240

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Summary of Contents for Sakura SFP KM EC Series

  • Page 1 Sakura Air Conditioner Sakura Air Conditioner User-friendly, Earth-friendly User-friendly, Earth-friendly Panel (Type-B) 680×680 Panel (Type-B) 830×830 Panel (Type-B) 680×1240 Panel (Type-A) 680×680 Panel (Type-A) 680×1240 Hydronic Cassette SFP - KM - EC Series ( Technical / Installation Manual ) Ref, S- 160 / 03 / 10 (H)
  • Page 2 As standard, the EC motor has an input terminal for a 0 to 5Vdc signal from a building management system (BMS) controller to vary the set volume on the fan in relation to the room temperature at minimal additional cost to the BMS package. SAKURA - Total Air Conditioning Solution...

  • Page 3: Features And Benefits

    ENERGY SAVING EC FAN COIL UNITS We, SAKURA have incorporated an energy efficient EC fan option for most of the units in the range that significantly exceeds the current Part L Specific Fan Power (SPL) requirement of 0.8 W/l/s. The fan coils are offered with a range of accurate and cost effective speed control options providing a flexible and user-friendly facility to have full controllability with standard analogue or DDC controls.

  • Page 4: Life Expectancy

    • No special electrical requirement - units are wired to normal AC 230V mains. • EC fan coil performance as AC - simple selection process. • Set back speed offers further savings of around 25-30% - total energy saving potential exceeds 70% (W) or 50% kVA. SAKURA - Total Air Conditioning Solution...
  • Page 5 3-way ON/OFF valve can be installed outside of case, which is easy to maintenance and replace. 2 or 3-way valves are power with 1~ 230V 50Hz. 3-way modulating valve can be installed outside of case, which is power on 230V or 24VAC. SAKURA - Total Air Conditioning Solution...
  • Page 6 ( ( 5 5 ) ) E E L L E E C C T T R R I I C C A A L L H H E E A A T T E E R R EH=Electrical heater ( ( 6 6 ) ) M M O O T T O O R R EC= EC motor SAKURA - Total Air Conditioning Solution...

  • Page 7: Standard Specifications

    C db entering air temperature, 50 C entering water temperature with water flow rates same as for the cooling test. ***Heating capacity: 20oC db entering air temperature, 70oC entering water temperature, 60oC leaving water temperature. SAKURA - Total Air Conditioning Solution...
  • Page 8 C wb entering air temperature, 7 C entering water and 12 C leaving water. **Heating : 20 C db entering air temperature, 50 C entering water temperature with water flow rates same as for the cooling test. SAKURA - Total Air Conditioning Solution...
  • Page 9 Water connection mm (in) 19.05(3/4) *Cooling : 27°C db/19°C wb entering air temperature,7°C entering water and 12°C leaving water. **Heating : 20°C db entering air temperature ,70°C entering water temperature and 60°C leaving water temperature. SAKURA - Total Air Conditioning Solution...
  • Page 10 Water connection mm (in) *Cooling : 27°C db/19°C wb entering air temperature,7°C entering water and 12°C leaving water. **Heating : 20°C db entering air temperature ,70°C entering water temperature and 60°C leaving water temperature. SAKURA - Total Air Conditioning Solution...
  • Page 11 F F P P - - fan coils are designed for installation in a false ceiling, for intake of fresh air from outside and for deviation of a small part of the treated air for discharge in a neighboring room. SAKURA - Total Air Conditioning Solution...
  • Page 12 • Check that it is possible to remove panels from ceiling in the selected position, to allow enough clearance for maintenance and servicing operations. F F i i g g . . 3 3 SAKURA - Total Air Conditioning Solution...

  • Page 13: Installation Location

    Check the distance between the upper slab and false ceiling to ensure the unit will suit the distance. See Fig.4 Fig.4 Model A(mm) B(MM) 10 or more SFP-KM4-51 FP-KM4-102 SFP-KM4-85/136/238 10 or more SFP-KM6-170 Fig.5 • Ensure there is sufficient space around the unit to service it. See Fig.5 SAKURA - Total Air Conditioning Solution...

  • Page 14: Installation Method

    Mark position of suspension rods, water lines and condensate drain pipe, power supply cables and remote control cable. Supporting rods can be fixed, depending on the type of ceiling, as shown in Fig. 7 and Fig.8. • Fit suspension brackets supplied with the unit to the threaded rods (Fig.9). SAKURA - Total Air Conditioning Solution...
  • Page 15 Line up the unit to the supporting bars of the false ceiling tightening the nuts and counter nuts of the threaded rods. • After connection of the condensate drain piping and piping connections, check again that the unit is level. SAKURA - Total Air Conditioning Solution...
  • Page 16 The spaces between the unit and ceiling can now be adjusted. Use the drop rods to make the adjustment. • Check to ensure the unit is level. The drain will then automatically be lower than the rest of the drip tray. • Tighten the nuts on the suspended rods. SAKURA - Total Air Conditioning Solution...

  • Page 17: Drain Pipe Work

    Tighten the two screws and making sure the external drain pan is installed flush with the fixing plate. When the installation is completed, it is necessary to wrap connecting pipe with insulation to prevent leakage to ceiling tile. SAKURA - Total Air Conditioning Solution...

  • Page 18: Inter Connecting Wiring

    Move the front panel to casing. • Tighten 4 screws as shown in Fig 17,18 Fig 17 Fig 18 FILTER REMOVAL • Unlock the two fasteners on the front panel. • Open the grille downward with care. SAKURA - Total Air Conditioning Solution...

  • Page 19: Preliminary Checks Before Start-Up

    Drain pump, float switch, involves the removal of the condensate drain pan. See Fig.20-25. • During the removal of the condensate drain pan protect the floor under the unit with a plastic sheet from condensate water that could be spilled. SAKURA - Total Air Conditioning Solution...
  • Page 20 Remove fixing screws of the drain pan fixture and remove condensate drain pan with care. The appliance are intended to be maintained by qualified service personnel and located at a level not less than 2.5m. Fig.20 Fig.21 Fan blower Removal SAKURA - Total Air Conditioning Solution...
  • Page 21 Fresh air - There is one (1) opening for connecting a fresh air duct for SFP-34-04-06-08, and for FP-85-10-12-16-18-20. There are two (2) openings for connecting fresh air ducts for SPCE-09-10-12-16. Order flanges (spigots) and blanking plates as accessories separately. SAKURA - Total Air Conditioning Solution...
  • Page 22 H H 3 3 H H 4 4 H H 5 5 SFPKM4-51 SFPKM4-85 SFPKM4-136 SFPKM4-238 Branch Duct and Fresh Air Duct Installation F F P P - - K K M M 4 4 SAKURA - Total Air Conditioning Solution...
  • Page 23 3. Knock out the pre-cut hole. 4. Connect the flange on to the opening with Φ 3 mm. x 12 mm . tapping screws. Step 3 Step 4 Tapping Screw Dia 3 mm.x12 mm.l. SAKURA - Total Air Conditioning Solution...
  • Page 24 FP-KM4 MIMENSIONAL DRAWINGS SFP-KM4-51-VS SAKURA - Total Air Conditioning Solution...
  • Page 25 SFP-KM4-85-VS air vent drainage outlet inlet water vent control box mounting blackets fresh air duct fan blower motor SAKURA - Total Air Conditioning Solution...
  • Page 26 SFP-KM4-136-VS panel cover × air vent Drainage outlet inlet water vent branch duct control box mounting brackets fresh air duct motor fan blower SAKURA - Total Air Conditioning Solution...
  • Page 27 SFP-KM4-238-VS panel cover drainage air vent outlet inlet water vent control box mounting brackets fresh air duct motor fan blower SAKURA - Total Air Conditioning Solution...
  • Page 28 9-4- Float switch 10-Heat exchanger 11-Drain pan 12-Drain pan fixture 13-Venturi 14-Shield 15-Air filter 16-Cover panel 16-0- Receiver display 16-1-Receiver label sticker 16-2-Grille 16-3-Bolt（Left） 16-4-Bolt（Right） 16-5-Louver 16-6-Stepping motor 16-7-Fan bearing 17- Wire wall pad SAKURA - Total Air Conditioning Solution...
  • Page 29 13-Inside control box 13-1-Transformer 13-2-Main PCB 13-3- Remote handset 14-Inside control box cover 15- Shield 16-Air filter 17-Panel 17-0- Receiver display 17-1-Receiver label sticker 17-2-Grille 17-3-Bolt（Left） 17-4-Bolt（Right） 17-5-Louver 17-6-Stepping motor 17-7-Fan bearing 18- Wire wall pad SAKURA - Total Air Conditioning Solution...
  • Page 30 13-Inside control box 13-1-Transformer 13-2-Main PCB 13-3- Remote handset 14-Inside control box cover 15- Shield 16-Air filter 17-Panel 17-0- Receiver display 17-1-Receiver label sticker 17-2-Grille 17-3-Bolt（Left） 17-4-Bolt（Right） 17-5-Louver 17-6-Stepping motor 17-7-Fan bearing 18- Wire wall pad SAKURA - Total Air Conditioning Solution...

  • Page 31: Remote Control Handset

    Heating Dehumidify Auto Signal sending ℃ Cooling Swing Network Fan speed Auto Low-Med-High Cycle timer-on and timer-off Sleep Timer-off Arrow direction is shown from the first function Timer-on Clock icon to the second function. SAKURA - Total Air Conditioning Solution...
  • Page 32 1) Error mark from 01 to 04 is for water cassette fan coil unit: 2) Error mark 01 and 03 and 04 are for High wall fan coil unit. 3) Error mark from 01 to 08 is for DX cassette. SAKURA - Total Air Conditioning Solution...
  • Page 33 BLACK/2.5 L-EH PR/O WHITE/2.5 PR/O AUX2 AUX2 BLACK pump N-WP BLACK AUX1 FLOAT YELLOW AUX1 FLOAT YELLOW VALVE2 WHITE heating value VALVE1 BLACK cooling value BLUE SAKURA - Total Air Conditioning Solution...
  • Page 34 2-pipe without EH 2-pipe with EH as booster 2-pipe with EH as primary 4-pipe without EH 4-pipe with EH as primary MTV setting [applicable to 2 pipes system only] Without motorized valve With motorized valve SAKURA - Total Air Conditioning Solution...

  • Page 35: Power On Setting

    The slave unit receives data on its settings from the master unit. The slave unit is allowed to change to a locally desired setting by local controller as long as there are no subsequent changes to the settings of the master unit. SAKURA - Total Air Conditioning Solution...
  • Page 36 If Ti1 ≧ 5ºC for 2 minutes, MTV1 and AUX2 are turned on. Indoor fun runs at set speed. FAN MODE Indoor fan runs at the set speed while heater, MTV1, MTV2, AUX1 and AUX2 are turned off. Indoor fan speed can be adjusted for low, medium and high. SAKURA - Total Air Conditioning Solution...
  • Page 37 If Ti1 >= 90 ºC, MTV1 and AUX1 are turned off, indoor fan remains on and runs at high speed. If Ti1<83 ºC, MTV1 and AUX1 are turned on, indoor fan remains on and runs at set speed. SAKURA - Total Air Conditioning Solution...
  • Page 38 Indoor fan runs at the set speed. 3) If Tr >Ts, heat operation is terminated, AUX1 is turned off. Indoor fan repeatedly runs at low fan speed for 30 seconds and stops for 3 minutes. SAKURA - Total Air Conditioning Solution...
  • Page 39 When turned off, MTV1 requires 120 seconds before it is fully closed. When the unit is turned off, indoor fan will delay for 5 seconds before it is turned off. LOW TEMPERATURE PROTECTION OF INDOOR COIL SAKURA - Total Air Conditioning Solution...
  • Page 40 1. If Ti2 >= 90 ºC, MTV2 and AUX1 are turned off, indoor fan remains on and runs at high speed. 2. If Ti2<83 ºC, MTV2 and AUX1 are turned on, indoor fan remains on and runs at set speed. SAKURA - Total Air Conditioning Solution...

  • Page 41: Dehumidification Mode

    Changing of operation mode will cancel sleep mode. The cool mode sleep profile is: Set temperature Ts+2.0 Ts+1.0 Ts+0.5 Hour Sleep off Sleep on The heat mode sleep profile is: Sleep Sleep Hour Ts-0.5 Ts-1.0 Ts-2.0 SAKURA - Total Air Conditioning Solution...

  • Page 42: Auto Fan Speed

    1 beep. 9. AUTO RESTART The system uses non-volatile memory to save the present operation parameters when system is turned off or in case of system failure or cessation of power supply. Operation parameters SAKURA - Total Air Conditioning Solution...

  • Page 43: Drain Pump

    Should EH safety switch be opened 3 times within 60 minutes, heater is not allowed to cut in anymore. Turn off the unit to reset the fault provided that the switch has returned to close position. SAKURA - Total Air Conditioning Solution...
  • Page 44 HM-CST-006 Router to manage the network and/or sub network. Connection of a cassette network 1). Layout without software and PC, with a router HM-CST-006 - The network can be max 32 units. HM-CST-004 HM-CST-003 HM-CST-001 HM-CST-006 SAKURA - Total Air Conditioning Solution...
  • Page 45 2). Layout with software or BMS system - The network can be max 32 units. 3). Layout without software or PC, with a router (HM-CST-006). The network can be max 256 units. The units can be controlled by a software centralized and/or router installed at the floor. SAKURA - Total Air Conditioning Solution...
  • Page 46 Group 0 Group 1 Group 7 SAKURA - Total Air Conditioning Solution...
  • Page 47 4). Layout with software or PC and router (HM-CST-006). The network can be more 256 units. SAKURA CORPORATION Tel: (81)45-949-8550 Fax: (81)45-949-8551 E-mail: mail@sakura-aircon.com URL: www.sakura-aircon.com SAKURA - Total Air Conditioning Solution...

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