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• When using the power apportion billing in the always connected to AG-150A/G-50A system
state, the integrated centralized control software TG-2000A must be run at all times (24-hours).
The air conditioning rate results will appear in red if the software stops. When using the direct
read in of power value into computer function (RS-485 WHM), power apportion billing in the
always connected to AG-150A/G-50A system state is used.
• Only one of PLC (PAC-YG11CDA), PI controller (MCP), and RS-485 can be connected with
watt hour meter. The system cannot accept the mixed connection. Also, in the case of using
RS-485, some functions are restricted.
• Perform the “Charging Test Run Check” as described in section 11.3 before using the
apportioned electricity charge function.
(8) Charging (Billing) restrictions
The air conditioning cost calculation method use by this integrated centralized control software
TG-2000A is the Mitsubishi proprietary general electric power apportioning method.
Depending on each country's laws and regulations, etc., there may be cases these measured
charges cannot be used for certificate of transaction.
Before starting use, the building owner and building tenant should bind an agreement or
contract indicating that the air conditioning charges are part of the usage fees with an
independent contract indicating "The air conditioning charges are collected with an apportioning
method that considers the air conditioner's operation state instead of charges according to the
measured power rate (including during emergency operation when a failure occurs)".
(1) A watt hour meter is not installed on each air conditioner's power supply section to calculate
the rate.
(2) This system cannot be used for applications requiring calculations made by installing a watt
hour meter on each air conditioner.
(3) This system estimates the air conditioner apportioned power rate, and cannot be used as a
certificate of transaction.
(4) Even if the air conditioner is run for the same length of time, the air conditioning charges
may differ according to the air conditioner's operation load state.
(5) Even if one or several air conditioners are connected to one watt hour meter, the watt hour
meter apportions with the total power rate. Thus, an error could occur. Multiple air conditioners
are considered as one air conditioner when apportioning and calculating.
(6) The air conditioner is energized even when stop, so the air conditioning charges are
calculated even if the air conditioner is not used.
(7) If a fault occurs in the computer, AG-150A/G-50A, PLC or PI controller, remedial measures
will be taken with the past average apportioned rate, etc.
(8) Mitsubishi will not be held liable in any case as the watt hour meter and gas meter, etc.,
rates are retrieved as pulses, and the performance and accuracy rely on the meters.
* The gas meter, etc., also counts with a pulse converter and thus cannot be used as a certificate
of transaction.
Note that the counted value includes remedial measures taken when a fault occurs.
(9) Energy saving and peak cut functions
• Note that when using the peak cut function, Mitsubishi will not be held liable even if faults occur
when the service power rate exceeds the contracted power rate value due to the control
operation settings or a fault in the AG-150A/G-50A, PLC or PI controller.
• The energy saving and peak cut control units are the operation block and outdoor unit in the
AG-150A/G-50A unit.
• During peak cut control (for PLC(PAC-YG11CDA)), the AG-150A/G-50A monitors only one watt
hour meter. This can be set for each AG-150A/G-50A. This cannot be used with a system for
which two or more watt hour meters are connected to the air conditioner controlled by one
AG-150A/G-50A. Use the power rate count software Version 1.01 or later.
• During peak cut control for watt hour meter connected with PI controller, only one watt hour
meter monitored by the AG-150A/G-50A can be selected. When using other AG-150A/G-50As
for peak cut control (*1), up to three AG-150A/G-50As can be connected with the
AG-150A/G-50A.
*1：AG-150A/G-50A, connected with watt hour meter, monitors peak cut control lever every one minute. When the
control level changes, the change reflect AG-150A/G-50As with one minute delay. Control level should be set with
some float to avoid over peak cut electric power.
• During peak cut control (for Demand control equipment), up to 10 AG-150/G-50As can be monitored
with PLC for demand input software. When using more than 10 AG-150A/G-50A s, install multiple
number of PLCs. PLC for demand input software (PAC-YG41CDA) should be used for PLC.