Panasonic CZ-256ESMC2 Operation Manual
Also see for CZ-256ESMC2: Operation manualOperation manual
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3-172Control of 2WAY SYSTEM1234567898. Intelligent Controller (CZ-256ESMC2)8410 Calculating air conditioner distributionThe Intelligent Controller calculates energy (electricity and gas) distribution ratios utilizing theaccumulated working time (T/S ON/OFF) or the capacity value of the indoor unit.* T/S: Thermostat10.1 Calculating simple distributionParameters as listed below are used to calculate simple distribution:1 RHHi: accumulated operation time for indoor unit i (High fan speed)2 RHi: accumulated operation time for indoor unit i (Medium fan speed)3 RLi: accumulated operation time for indoor unit i (Low fan speed)4 SHHi: T/S ON accumulated time for indoor unit i (High fan speed)5 SHi: T/S ON accumulated time for indoor unit i (Medium fan speed)6 SLi: T/S ON accumulated time for indoor unit i (Low fan speed)7 Pi: Capacity of indoor unit i (in kW)8 k: Weighing factor for power consumptions as T/S ON and OFF9 aHH: Weighing factor for High fan speedbk aH: Weighing factor for Medium fan speedbl aL: Weighing factor for Low fan speed* Accumulated operation time = T/S ON accumulated time + T/S OFF accumulated timeIndex of indoor unit i power/gas consumptions is calculated.Here, “TEi” and TGi” denotes the power and gas consumption indexes of the indoor unit i,respectively.When “Object of power distribution calculation” is “T/S ON + OFF time”:The power consumption index is calculated using “Accumulated operation time” and “T/S ONaccumulated time”; the gas consumption index using “T/S ON accumulated time”• For GHP:TEi = (RHHi x aHH + RHi x aH + RLi x aL) x Pi Formula 1TGi = (SHHi x aHH + SHi x aH + SLi x aL) x Pi Formula 2• For PAC:TEi = { (RHHi x aHH + RHi x aH + RLi x aL) /k +(SHHi x aHH + SHi x aH + SLi x aL)} x Pi Formula 3TGi = 0When “Object of power distribution calculation” is “T/S ON time”:Both the power and gas consumption indexes are calculated using “T/S ON accumulated time”.• For GHP:TEi = (SHHi x aHH + SHi x aH + SLi x aL) x PiTGi = (SHHi x aHH + SHi x aH + SLi x aL) x Pi• For PAC:TEi = (SHHi x aHH + SHi x aH + SLi x aL) x PiTGi = 0• Weighing by wind speed is not carried out for models with their speed set only as High or only as High and low.• Distribution ratios are not calculated when you have chosen not to perform distribution ratio calculations. (See “6.3.2Setting the date, cut-off date, and distribution ratio calculation method”)8510 Calculating air conditioner distributionCalculate electricity/gas usage index of entire distribution groupLet “TOTALe” be the electricity usage index of entire distribution group,and let “TOTALg” be the gas usage index of entire distribution group.Let “m” be the number of indoor units in the distribution group.TOTALe = TE1 + TE2 + ··· + TEmTOTALg = TG1 + TG2 + ··· + TGmCalculate electricity/gas usage distribution ratio of indoor unitsLet “REi” be the electricity usage distribution ratio,and let “RGi” be the gas usage distribution ratio.REi (%) = TEi / TOTALe × 100RGi (%) = TGi / TOTALg × 100Calculate electricity/gas usage distribution ratio of tenant jLet “NEj” be the electricity usage distribution ratio of tenant j,and let “NGj” be the gas usage distribution ratio of tenant j.Let “n” be the number of indoor units of tenant j.NEj (%) = RE1 + RE2 + ··· + REnNGj (%) = RG1 + RG2 + ··· + RGnDistribution ratios are rounded at the third decimal place and shown to the second decimal place.* The following table shows which of the formulas 1 to 3 on the previous page are used by the twodistribution modes.T/S ON+OFF timedistribution mode T/S ON timedistribution modeGHP Electricity 1 2Gas 2 2PAC Electricity 3 2Gas - -HOT Electricity 3 2Gas 2 2See “About distribution ratios in 12 Supplementary Information”. |
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