Introduction; About Apportioned Electricity Billing Function - Mitsubishi Electric AE-200A Instruction Book

2. Introduction

Before using an apportioned electricity billing function (AE-200 Apportion), initial settings and trial run must
be completed beforehand by authorized personnel on site. Please receive an explanation from your dealer or
contractor on how to use the function.
* For dealers and contractors
Install the software (tool), make initial settings, and perform trial runs according to the procedures in the order of sections
5, 6, and 7 in this manual. Provide sufficient explanation about an apportioned electricity billing function to the customer,
referring to section 2 (2-6).

2-1. About apportioned electricity billing function

If an outdoor unit is used by a single tenant, the amount of electric energy consumption for each tenant can be
ascertained by installing electricity meters on the indoor and outdoor units in each system. However, if the indoor
units in the same system are installed to multiple tenants, the electric energy consumption for each tenant cannot
be calculated with the electricity meter. Consequently, an apportioned electricity billing function is required.
The apportioned electricity billing function is our original electric energy apportionment system that apportions
electric energy using input from electricity meters with a pulse generator function. Rather than directly
measuring the electric energy used by each air conditioner, pulses are input based on the air conditioner usage
by determining the air conditioner operating status from the content of its communication with the indoor and
outdoor units.
(Example 1) A configuration where the apportioned electricity billing function is not required (where the outdoor
units are each used by just one tenant)
Electricity meter
1-1
M-NET
Outdoor unit A
Electricity meter
1-2
M-NET
Outdoor unit B
WT07442X02
Tenant A = [Electricity meter 1-1] + [Electricity meter 2-1]
Indoor unit Indoor unit
A1 A2
Tenant B = [Electricity meter 1-2] + [Electricity meter 2-2]
Indoor unit Indoor unit
B1 B2
Electricity meter
2-1
Indoor unit
A3
Electricity meter
2-2
Indoor unit
B3
9