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14
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’13 • SC-T-192
①
In case of MULTI 1 setting: Conduct proportional distribution according to the results of a accumulated answer Hz. Accumulation
is not performed when the thermo is OFF or during the Fan mode operation.
Total value of operating volume
(Total value of answer Hz)
Operating volume of indoor unit A = accumulated pulse counts ×
power consumption per pulse ×
25/125 (25 + 40 + 60)
Operating volume of indoor unit B = accumulated pulse counts ×
power consumption per pulse ×
40/125
Operating volume of indoor unit C = accumulated pulse counts ×
power consumption per pulse ×
60/125
②
In case MULTI 2 setting: Conduct proportional distribution according to the Hz corresponding to the air conditioner capacity
(capacity equivalent Hz: fixed value) and thermo ON operating time.
Capacity equivalent Hz: equivalent value of answer Hz when exerting the indicated capacity of indoor unit (fixed value determined
according to capacity).
Different from
①
, the fixed value is accumulated irrespective of the answer Hz. Accumulation is not performed when the thermo
is OFF and during the Fan mode operation.
Total value of operating volume
(capacity equivalent Hz × thermo On time)
Operating volume of indoor unit A = accumulated pulse counts ×
power consumption per pulse ×
30/150 (30 + 50 + 70)
Operating volume of indoor unit B = accumulated pulse counts ×
power consumption per pulse ×
50/150
Operating volume of indoor unit C = accumulated pulse counts ×
power consumption per pulse ×
70/150
③
In case of ON/OFF setting: Conduct proportional distribution according to the Hz corresponding to the air conditioner capacity
(capacity equivalent Hz: fixed value) and remote control ON time.
Same as
②
, the capacity equivalent Hz (fixed value) is accumulated according to the remote control ON time only. Accumulation
is also performed when the thermo is OFF and during the air supply operation.
Total value of operating volume
(capacity equivalent Hz ×
remote control ON time)
Operating volume of indoor unit A = accumulated pulse counts ×
power consumption per pulse ×
40/160 (40 + 50 + 70)
Operating volume of indoor unit B = accumulated pulse counts ×
power consumption per pulse ×
50/160
Operating volume of indoor unit C = accumulated pulse counts ×
power consumption per pulse ×
70/160
★
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For owners the fee apportionment for multi air conditioners is more complicated and harder to explain to customers. In many
cases it's best to use simple explanations.
In addition, consumption for multi machines are calculated based on volume, making it easy for excessive cooling and differences
in building load to lead to discrepancies in electricity consumption. These different values are hard to explain. Therefore, it is
easier to explain how many horsepower were used for how long.
At this point, recommend [ON/OFF] setting.
Both multi machines and single machines use [ON/OFF] setting.
Recommend that separate watt-hour meters be installed for single machine and multi machine systems.
Indoor unit A
25Hz
Indoor unit B
40Hz
Indoor unit C
60Hz
Indoor unit A
30Hz
Indoor unit B
50Hz
Indoor unit C
70Hz
Indoor unit A
40Hz
Indoor unit B
60Hz
Indoor unit C
70Hz
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