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27-1
Overview
1.
Purpose of electricity charge apportionment
The electricity charge apportionment function apportions air conditioner electric charges to tenants.
Generally, indoor units are divided among and used by each tenant, and calculation of the electricity
charge for each tenant is easy. But since outdoor units are shared by multiple tenants, calculation of
the electric charge for each tenant is not easy.
The electricity charge apportionment function is allows distribution of the electricity charges of outdoor
units, which are a large part of the air conditioner power consumption, according to the air conditioner
usage ability of each tenant.
2.
Features of electricity charge apportionment of System Controller Lite
(1)
There is a method of carrying out apportionment calculations from the used electricity volume
sent from the electricity meter and the unit price, and there is also a method of electricity appor-
tionment calculation based on the amount on the invoice from the electricity company.
(2)
Apportionment calculation is performed according to indoor unit usage ability.
(3)
In addition to electric charge calculation of outdoor units only, electric charge calculation including
indoor units is also possible.
(4)
Flexible definition according to the electric charge contract configuration, block configuration, and
usage period is possible.
(5)
Since the data for 1 year is saved, recalculation of the past is possible.
3.
Basic electricity charge apportionment terms
The terms related to electricity charge apportionment which appear in this section are defined below.
Apportionment
Contract
Block
Energy used
Electricity charge
Undefined block
Parameters
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Distribution proportional to basic quantity.
Billing objective of electricity charge from electric power company.
Aggregate of indoor units used by building tenants. A block used exclu-
sively by a specific tenant is called a tenant block and a block shared by
multiple tenants is called a common block.
Energy used by indoor units and outdoor units to perform air conditioning.
Electricity charge billed from an electric power company. Consists of basic
charge billed without regard to amount used, metering charge billed only for
the amount used, additional charge billed for special reasons, etc.
Special block which is allocated the power consumption, etc. of indoor units
which are not allocated to a tenant block or common block. Generally, elec-
tric charges considered to be borne by the building owner or manager are
apportioned to an undefined block.
Detailed unit Information used in electricity charge calculation by the elec-
tric charge apportionment function.
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