Fujitsu AIRSTAGE UTY-ALGX Instruction Manual page 246

System controller lite for vrf system
Table of Contents

Advertisement

6.
Overview of apportionment method
Electricity charge apportionment is performed by a suitable method corresponding to the S/V Series
and V-II/V-III/VR-II/J-II/J-IIS Series refrigerant control system.
The following outlines the V-II/V-III/VR-II/J-II/J-IIS Series electricity charge apportionment method, but
the conceptual processing method is also the same for the S/V Series.
6.1
Fixed period processing
This processing is performed periodically for all the objective units when the electricity charge appor-
tionment function is enabled.
(1)
The energy used by and usage ability of each outdoor unit and indoor unit are calculated in accor-
dance with the operation status of each unit.
(2)
The energy used by outdoor units is apportioned to indoor units according to the usage ability of
the indoor unit and the total energy used by each indoor unit is calculated for each refrigerant sys-
tem.
6.2
Charge calculation processing
Electricity charge calculation is processed for the period for each block, based on either the used
electricity amount from electricity meter and the unit price, or based on the invoice from the electricity
company.
(1)
Basic and additional charges
Apportioned to each block in accordance with the selected apportionment method.
Apportionment is performed in day units.
Apportioned between real blocks.
Not apportioned to common blocks.
Since charges are not distributed when there are no real blocks, when using basic and additional
charges, set an owner block, etc. so that blank period blocks are not generated.
(2)
Meter rate charges
The total energy used by each indoor unit calculated by fixed period processing is accumulated
through the calculation period as the total energy used by each block. Indoor units not allocated
to a block are integrated as an undefined block.
Meter rate charges are apportioned to each block in accordance with the proportion of the calcu-
lated total energy used by each block.
(3)
Common block
The result of accumulation of meter rate charges above becomes the source of apportionment for
common blocks.
Charges are apportioned to blocks specified as distribution destinations in accordance with the
selected apportionment method.
Apportionment is performed in day units.
Apportionment is apportioned among real blocks.
The period when there are no real blocks is integrated at undefined blocks.
Copyright© 2013-2015 Fujitsu General Limited. All rights reserved.
246

Advertisement

Table of Contents
loading

Table of Contents