Toshiba TCB-LDS Series Installation Manual

Page 1 of 2PIN No.1 Power (V1)Model Name 2 Power (V2)Mounting Method 3Mounting Depth 4Height 5TCB-LDS1 TCB-LDS2 WidthVRF VRF MaterialRefrigerant Leak Detector Refrigerant Leak DetectorHeight mm 85 85Width mm 85 85Depth mm 32 32Mounting Screw Pitch mm 60 60Weight kg 0.085 0.085Plastic Stainless SteelWhite Stainless SteelRecessed RecessedYes YesAudible Alarm Sound Level dB 85 (2300Hz ±300) 85 (2300Hz ±300)Powered Off Powered Off3 x Coloured LED 3 x Coloured LEDYes (L30) Yes (L30)Interconnecting Cable Max Length (Sensor to FCU) m 10 10Interconnecting Cable Type (Sensor to FCU) mm2 0.75mm2 Multi Core 0.75mm2 Multi CoreInterconnecting Cable Max Length (Sensor to LD1) m 50 50Interconnecting Cable Type (Sensor to LD1) mm2 0.75mm2 Multi Core 0.75mm2 Multi Core12-24V AC/DC 12-24V AC/DCSuggested Fuse Size Amps N/A N/ACircuit Protection Fuse supplied With Cable mA 125 (Fuse supplied as part of Loom) 125 (Fuse supplied as part of Loom)Yes YesYes YesRecommended Mounting Height Above floor Level mm 150 ~ 250 150 ~ 250Note:In accordance with BSEN 378:2016 the leakdetector MUST beconnected to a separatepower supply breakerthan that of the indoorunit (FCU).12 > 24vAC / DCRelay (NO)Relay (C)Relay (NC)UsageColourModel NameModel GroupFunctionFacia Plate MaterialCable Link For Remote On / OFF (Ving Card)Fail Safe Relay OperationInstallation TypeAudible AlarmAlarm MuteVisual Indicator (Neon)Fault Code generated to Local Remote ControllerPower SupplyThe TCB-LDS1/2 is intended to be mounted within a single gangback box, wall box. A minimum depth of 45mm is required to suiteall variants.68.3mmMetalPlastic86mm47mmFlush - Dry Lining46mmTCB-LDSBB168.3mm86mmTCB-LDSBB2Flush - Wall (concrete)TCB-LDS Product Installation Manual For Commercial UseRefrigerants are significantly heavier than air. Therefore in order for the sensor tooperate as effective as possible the refrigerant detector must be positioned at a lowlevel inside the room, where the indoor air conditioning unit is fitted. See diagramshowing recommend installation guidelines.The unit is designed to fit on the surface or over a standard single socket recessedbox. The refrigerant detector PCB can be accommodated inside a standard singlegang electrical back box (locally procured). The minimum depth of the back box isdependent on the style of face plate, however all designs will fit inside a 47mm deepenclosure , which can be flush mounted into the wall.Distance – The detector is to be mounted a maximum of 10m from the indoor unit.Low Level – As HFC refrigerants are heavier than air, the TCB-LDS should bemounted as close as practical to floor level(150mm ~ 250mm above floor level), preferablydirectly below the air conditioning unit.Accessible for Maintenance - The TCB-LDS should be mounted in a position whereit can be easily accessed for maintenance and repairs.Minimize Damage - Mount the sensor in a position that minimizes the risk ofmechanical damage to the unit.Minimize false alarms - Semi-conductor sensors can be ‘poisoned’ by contaminantsand after exposure may take considerable time to recover. Solvent paints and siliconmastic are typical contaminants and exposure from these substances must beavoided.Ensure leaks can be detected – Do not mount the sensor next to doors or windows,where fresh air may influence readings.Sensor Operation CharacteristicsMeasure the Gv voltage on the testing connector (Pins 1 & 4),as shown above.Refer to the table below for the expected voltages.Installation LocationElectrical ConnectionsPCB Layout (Front & Rear View)Sensor TestingProduct OverviewSpecificationMounting MethodThe leak detector is designed to shut down the air-conditioner in the event of a discharge of refrigerant into the detected space. In the event of theleak detector operating there is visual and audible indication. The visual indication is via a flashing LED and the audible indication is via buzzer.In accordance with BS EN 378:2016 The leak detector MUST be connected too a separate power supply breaker than that of the indoor unit(FCU). The connection between sensor and indoor unit is completed via CN80 port on the indoor PCBIn the event of a leak the indoor unit will stop and a L30 fault code will be generated. This fault code will be displayed on the local remote controllerand the network based controls connected.TCB-LDS1TCB-LDS2Installtion Height of Sensor from FloorTypical Hotel Application OperatingCondition LED Status BuzzerStatusGvVolts Power Status Fault Code OperatingConditionL30NoneThermal OffThermal On9Gasconcentrationlevel drops belowLevel 1(Sensor Reset)Constant Green Off <2.0V DCPower OnPower Off to OnL30 Thermal Off8Level 3(4000ppm) GasConcentrationLevel exceeded(> 30 seconds)Flashing Red/Amber (4Hz)Pulses(4Hz) Power On L30 Thermal Off>4.2v DC7Level 2(1000ppm) GasConcentrationLevel exceeded(> 30 minutes)Flashing Red/Amber (2Hz)Pulses(2Hz) >3.5V DC Power OnNone Thermal On6Level 2(1000ppm) GasConcentrationLevel exceeded(> 2 seconds)Flashing Red (2 Hz) Off >3.5V DC Power On None Thermal On5Level 1 (500ppm)GasConcentrationLevel exceeded(> 2 seconds)Flashing Green (2 Hz) Off >2.5V DC Power OnNone Thermal On4 Sensor Fault(>180 seconds)Flashing Red (1Hz) + one(1) Amber flash per minutePulse 1 perminute<0.1V DC Power On L30 Thermal Off3 Normal Operation Constant Green Off <2.0V DC Power OnNone None2 Warm Up(5 minutes) Flashing Green/Red (1Hz) Off N/A Power On None Thermal On1 Power Off Off Off N/A Power OffItem No.LDS1/2 Sensor Status CN80 Operation Pattern FCU StatusRelay Status13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)13345NOCOMNCLDS1/2 Sensor CN80 (FCU)Example: LDS2 with LDSBB1

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