Harry Taylor HT2000 Installation & Servicing Manual
Also see for HT2000: ManualManualInstallation & servicing manualManualInstallation, service and user manual
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92.3 Air supplyConsideration must be given to the provisionof air for the purposes of combustion andventilation of the heated space, plant roomor enclosure where heaters are to beinstalled.Note:It is strongly recommended that BS 6230 :2005 is referred to for further informationconcerning ventilation requirementsWhere mechanical ventilation is used it is arequirement that the inlet is of themechanical type, and the outlet is eithermechanical or natural.2.3.1 Heaters installed within theheated space.Where heaters are installed within the spaceto be heated (i.e. not a plant room orenclosure) then:Combustion air or heater related ventilationair will not be required if - The design air change rate of theheated space is 0.5 air changes perhour or greateror The design air change rate may besatisfied by natural infiltration or bymechanical ventilationCombustion and General ventilation will berequired if - The design air change rate of theheated space is less than 0.5 airchanges per houror Where the heated space has an airchange rate of less than 0.5 airchanges per hour then it will benecessary to provide either naturalventilation openings to the heatedspace (section 2.3.1.1. refers) or themechanical ventilation of the heatedspace (section 2.3.1.2. refers)2.3.1.1 Natural Ventilation Openingsto the Heated Space.If the heated space design air change rate isless than 0.5 air changes per hour thenprovision for low level natural ventilationopenings will only be necessary.The minimum free area of the low levelnatural ventilation opening shall be: 2cm2 for each kW of rated heat inputThe low level natural ventilation openingshould be situated on an external wall andbe within 1000 mm of floor level for naturalgas and ideally at floor level for l.p.g gasinstallations but in any event no higher than250 mm.The table below provides specific data foreach heater model as -2.3.1.2 Mechanical Ventilation to theHeated Space.In the event that the heated space has adesign air change of less than 0.5 airchanges per hour and that installer prefersto mechanically ventilate the heated spacerather than provide ventilation openings then-Minimum Free Area ofventilation openingHigh Level Low Levelcm 2 cm 230 None 6435 None 7940 None 9760 None 12775 None 16085 None 193120 None 257135 None 291180 None 386205 None 460235 None 515275 None 623350 None 769375 None 847Model |
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