Installation Operation Maintenance

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InstallationGas pipework installation(Gas Fired units YKD/YKH)Installation of gas piping (to beperformed by the contractor)The installation rules for publicbuildings shall be followed: refer tothe brochure in the "Journal Officiel"number 1477-1 (France only).The gas supply piping and the gasstop valve shall be dimensioned toguarantee the gas supply pressureat the unit's inlet when it isfunctioning at full capacity.It is recommended to install oneexpansion valve as close aspossible to each installed unit.The piping must be self-supportingbefore the final branch connectionto the burner. Allow for a dust trap(filter) upstream of the connectionto the unit.Search for gas pipe leaks usingproducts such as "Typol" or"1000 bulles" or another equivalentmethod. Soapy water must not beused.WARNING! : Never use a flame tosearch for leaks. The required gaspressures at the unit's inletconnection are specified in table 22.CAUTION! : The piping must notexert any stress on the branchconnection to the burner.The heating system must beisolated by the gas stop valve onthe gas supply piping during thepressure tests, as soon as thepressure exceeds 0.035 bar(35 mbar). If pressure greater than0.035 bar is applied to the gas valveinlet the unit may be damaged.Figure 7 - Typical gas supply pipework1. Evaporator section2. Gas burner section3. Condenser section4. Gas supply connection5. Gas supply line6,8. Gas stop valve (Field supplied)7. Expansion valve (Field supplied)9. Filter (Field supplied)14RT-SVX16C-E4
InstallationFilter installationAccess to the filter cells is done viathe filter access door.Each unit is shipped with eitherEU2/G2 or EU4/G4 filters.EU4/G4 filters are available either in50 mm or 100 mm depth.The number and the size of the filtercells are determined by the size andthe configuration of the unit.(See table 6.)CAUTION! : Do not operate unitwithout filters in place.The maximum pressure dropsallowable on filters are thefollowing:EU2/G2: 120 PaEU4/G4: 150 Pa (50 & 100 mm)Table 6 - Filter arrangementUnitType Unit 50mm EU2 - STD 50mm EU4 - AR500 10mm EU4 - AR500TKD/HYKD/HTKD/HYKD/HTKD/HYKD/HTKD/HYKD/HTKD/HYKD/HSize Qty Size Qty Size Qty Size275 16 (395x497x45) 16 (395x495x45) 16 (395x495x90)300 16 (395x497x45) 16 (395x495x45) 16 (395x495x90)350 16 (395x497x45) 16 (395x495x45) 16 (395x495x90)400 17 (395x497x45) 17 (395x495x45) 17 (395x495x90)500 17 (395x497x45) 17 (395x495x45) 17 (395x495x90)RT-SVX16C-E415
Page 2: General informationForewordThese in
Page 6 and 7: ContentsControlsControl wiring 30Re
Page 8 and 9: InstallationLifting and moving Inst
Page 10 and 11: InstallationFigure 3 - Location of
Page 12 and 13: InstallationTable 4 - Point loading
Page 16 and 17: InstallationFigure 8 - Indoor Fan B
Page 18 and 19: InstallationSupply fan performances
Page 20 and 21: InstallationSize 500 fan performanc
Page 22 and 23: InstallationElectrical connectionsT
Page 24 and 25: Options80 - 100% Supply fanFrequenc
Page 26 and 27: OptionsSoft StarterA variable speed
Page 28 and 29: OptionsExhaust fansThe exhaust axia
Page 30 and 31: ControlsControl wiringThe control c
Page 32 and 33: ControlsFigure 17 - CO 2 / VOC sens
Page 34 and 35: ControlsFigure 20 - CO 2 /VOC adjus
Page 36 and 37: ControlsClogged filter detectorThis
Page 38 and 39: ControlsCommunication InterfacesCon
Page 41 and 42: OperationVerification procedure:1st
Page 43 and 44: OperationTest modesStep test mode-
Page 45 and 46: OperationAdaptation to available ga
Page 47 and 48: OperationFigure 29 - Gas burner sec
Page 49 and 50: OperationMechanical Cooling with an
Page 51 and 52: OperationZone Temperature . Unoccup
Page 53 and 54: OperationFinal installation checkli
Page 55 and 56: MaintenanceTroubleshootingAlways ve
Page 57 and 58: MaintenanceSymptom Probable Cause R
Page 59 and 60: NotesRT-SVX16C-E459

Installation Operation Maintenance

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