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10 CALCULATING AIR CONDITIONER DISTRIBUTION
The Intelligent Controller calculates energy (electricity and gas) distribution ratios utilizing the
accumulated working time (T/S ON/OFF) or the capacity value of the indoor unit.
* T/S: Thermostat
10.1 Calculating simple distribution
Parameters as listed below are used to calculate simple distribution:
A
RHHi
: accumulated operation time for indoor unit i (High fan speed)
B
RHi
: accumulated operation time for indoor unit i (Medium fan speed)
C
RLi
: accumulated operation time for indoor unit i (Low fan speed)
D
SHHi
: T/S ON accumulated time for indoor unit i (High fan speed)
E
SHi
: T/S ON accumulated time for indoor unit i (Medium fan speed)
F
SLi
: T/S ON accumulated time for indoor unit i (Low fan speed)
G
Pi
: Capacity of indoor unit i (in kW)
H
k
: Weighing factor for power consumptions as T/S ON and OFF
I
aHH
: Weighing factor for High fan speed
J
aH
: Weighing factor for Medium fan speed
K
aL
: Weighing factor for Low fan speed
* Accumulated operation time = T/S ON accumulated time + T/S OFF accumulated time
Index 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 ON
accumulated 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 1
TGi = (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 3
TGi = 0
When “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 Pi
TGi = (SHHi x aHH + SHi x aH + SLi x aL) x Pi
•
For PAC:
TEi = (SHHi x aHH + SHi x aH + SLi x aL) x Pi
TGi = 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 “6.3.2
Setting the date, cut-off date, and distribution ratio calculation method”)
CZ-256ESMC1U̲改.indb 83
CZ-256ESMC1U̲改.indb 83
2011/11/11 11:25:52
2011/11/11 11:25:52
