Mitsubishi G-50A Installation Manual Page 59
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8.4.4 Manual input of electric power consumption
The calculation method of manual input not connecting watt-hour meter is given below.
With this method, calculation is performed by employing the reading value of watt-hour meter without using
watt-hour meter or PLC itself.
Using “Charging ratio support software,”
enter the reading value of watt-hour
meter, and apportion it for each tenant.
Apportioning parameter file
(CVS format)
Preparation
of bill
G-50A
Collects and stores the following operation data of air
conditioners.
1 Indoor unit fan operation time
2 Indoor unit auxiliary heater operation time
3 Capacity saving ratio
4 Thermostat ON time
Calculating the apportioning parameter based on the data collected from G-50A
PC for centralized control
(Integrated software)
(1) Standard charge
This method can not process the standard charge as its sole function is to calculate air conditioning
charge based on the operation data. The standard charge should be added by the user additionally.
(2) Air conditioner charge
The air conditioning charge of each tenant can be calculated by using “Charging ratio support software
(EXCEL)” locating in the Integrated software install CD-ROM.
For the parameters required to calculate the charge, use “Apportioning parameters” and “Charging
ratio” explained in the Items 8.4.2 and 8.4.3.
By employing the file prepared by the integrated software based on these parameters (CSV file) and the
manual input of the electric power consumption of indoor/outdoor units, the air conditioning charge per
charge block (tenant) can be calculated by using a calculation software like “Charging rate support software.”
(3) Apportioning parameters of outdoor unit
As explained in the item 8.4.2, calculate the value by using the indoor unit rated capacity for each
indoor unit per charging time frame, and total the value multiplied by the unit price for the charging
blocks, and then calculate a ratio to the total of all blocks.
Apportioning parameter =
Integrated value of indoor unit capacity control level (Capacity saving ratio or thermostat ON time) ×
Charging parameter of indoor unit rated capacity = Σ (Apportioning parameter × Unit price)
Charging ratio [%] =
(4) Apportioning parameters of indoor unit
As outlined in the item 8.4.1, calculate by using the rated electric power of the fan and auxiliary heater
of indoor unit per charging time frame and sum up the value multiplied by the unit price for charging
block, and calculate a ratio to the total of all blocks. For the indoor unit without auxiliary heater, amount
of “ON time of auxiliary heater × auxiliary heater electricity power consumption” will be zero.
Appor
tioning parameter = Operation time of indoor unit fan × Rated power consumption + ON time of
auxiliary heater × Auxiliary heater electricity power consumption
Charging par
ameter = Σ (Apportioning parameter × Charging unit price)
Charging r
atio [%] =
Total charging parameter of relative block
Total charging parameter of all blocks
Total charging parameter of relative block
Total charging parameter of all blocks
Figure 8-11 Mechanism of electric power manual input
- Mitsubishi Electric 1
- Technical Manual 1
- 1. Safety Precautions 5
- 2. Outline of product 7
- 2.1 Function 8
- (2) Function list 9
- (3) Screen image 10
- (4) Explanation of icons 11
- (1) Features 11
- (3) Function list 13
- (4) Screen images 14
- (5) Explanation of icons 15
- 2.3 Products list 17
- EU:~220V-240V; 0.25A 50Hz 18
- US:~208V-230V; 0.25A 60Hz 18
- 2.3 kg / 5 18
- 3. System Design Flow 19
- 4. Step 1: 20
- 4.3.1 M-NET transmission line 21
- 5. Step 2: 24
- 5.1.5 Synchronized settings 28
- (1) External input 29
- (1) External output 30
- Operation Block 34
- Charge Block 34
- Table 6-4 PC specifications 36
- 6.2 About password control 37
- 6.3 About LAN 38
- (3) Switching hub 39
- 6.3.3 LAN wire length 39
- 7. Step 4: 40
- (2) What is charge? 45
- (1) Basic composition 48
- (2) Required materials 48
- (3) Setting items 49
- (3) Setting item 52
- (1) Basic configuration 53
- (4) TG-2000A 56
- (1) Standard charge 59
- (2) Air conditioner charge 59
- Manual input of reading 60
- (2) Unit price 61
- (3) Charge 61
- 8.5 Output of Charging Data 62
- 8.6 Charging Method 63
- 9.1 Outline 66
- 9.2.1 Energy saving control 67
- (3) Required materials 69
- 9.2.2 Peak cut control 70
- (1) Explanation of function 70
- Stopping control is on 72
- Office A 74
- Group 1 Group 2 74
- Group 5 Group 6 74
- Group 3 Group 4 74
- (1) Measuring instruments 75
- 11.2.3 PLC assignment 80
- 11.2.4 Required materials 80
- 11.2.5 Setting of TG-2000A 81
- 12.4 PLC Software 86
- QJ71E71-100 87
- 01234567 87
- 89ABCDEF 87
- 12.6 PLC Wiring Diagram 88
- Instrument and PC for Control 89
- (1) Setting of IP address 90
- (2) Setting of subnet mask 90
- (1) Setting of dialup router 93
- (2) Network setting of G-50A 93
- Pi! Pi! 94
- (1) Switching hub 96
- (2) Optical media converter 96
- (3) Optical cable for LAN 96
- 14.1.1 Outline 97
- 14.2.1 Outline 99
- 14.2.5 Graphing trend data 103
- 15. Initial Setting Tool 104
- 15.2.2 Connection to G-50A 106
- 16. Other function 107
- 16.1.1 Auto-changeover mode 108
- Contents effective Dec. 2003 109
- ● Suwanee, Georgia 30024 110
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