Daikin RXYSQ-P8Y1 Technical Data Manual

Daikin RXYSQ-P8Y1 Technical Data Manual Manual pdf 22 page image

• Outdoor Unit • VRVIII-S heat pump • RXYSQ-P8Y114• VRV Systems • Outdoor Unit204 Capacity tables4 - 4 Integrated Heating Capacity Correction Factor3TW30402NOTES1. The figure shows that the integrated heating capacity expresses the integrated capacity for a single cycle (from defrost operation to defrost operation) in terms or time.2. Whe there is an accumulation of snow against the outside surface of the outdoor unit heat exchanger, ther will always be a temporary reduction in capacity, although this will of course vary indegree in accordance with a number of other factors, such as the outdoor temperature (°CDB), relative huminity (RH) and the amount of frosting which occurs.INTEGRATED HEATING CAPACITY COEFFICIENTThe heating capacity tables do not take account of the reduction in capacity, when frost has accumulated or while the defrosting operation isin progress.The capacity values, which take these factors into account, in other words, the integrated heating capacity values, can be calculated asfollows:Formula:Integrated heating capacity = AValue given in table of capacity characteristics = BIntegrating correction factor for frost accumulation (kW) = CA = B x CCorrection factor for finding integrated heating capacity.Inlet port temperature of heat exchanger (°C/RH 85%) -7 -5 -3 0 3 5 7Integrating correction factor for frost accumulation 0,88 0,86 0,8 0,75 0,76 0,82 1.0RXYSQ-P8Y1Defrosting operation Defrosting operation1 cycleTimeHeating capacity