TICA P70131000000, Manual

Page: 75 / 174

75
residences. This system offers solutions for places where multiple property owners use
different IDUs but share a public ODU, and hence clarifies ODU electricity distribution
among multiple property owners. In the meantime, the system provides solutions for
remote and uniform control of VRF air conditioner, hence making management and
maintenance on VRF air conditioning units more convenient.
Household-based charging technology is widely applied to places where central heating
and central air conditioning is required. It is available in the following three types: based
on time, based on both time and energy, and based on energy. Using a highly accurate
energy based method, TICA’s household-based charging is a way that could distribute
electricity depending on users’ actual consumption of cooling/heating amount in the room.
According to this method, fees are charged depending on the room area or rated cooling
capacity of IDU, which is more reasonable and justified. In addition, this system could
prompt users to be more energy conscious.
2. Application scope
This charging system is only applied to TICA VRF units under remote control. It is a
dedicated system and hence not applicable to other manufacturers’ equipment.
3. Requirements in use of software
The computer where this software runs must meet the following requirements:
(1) Hardware: at least 2GB memory and 2.0GHz CPU
(2) Operating system: Windows XP (SP3), Windows Vista, Windows 7
(3) Resolution: at least 1024×768
(4) Interfaces: at least 1 RS232 interface
(5) UPS system: make sure that the computer can still work for 1 hour after a power
outage.
4. Charging principle
The electricity consumed by TICA VRF units fall into the following four categories:
1: Electricity consumed by IDU-- including energy consumed by electric heater and fan
2: Electricity consumed by ODU during operation--power consumption to be distributed
according to IDU load ratio
3: Electricity consumed by ODU during standby mode--power consumption to be
distributed according to IDU capacity
4: Air conditioner in public area--power consumption to be distributed according to IDU
capacity
1 and 2 fall within the scope of basic power consumption while 3 and 4 within the scope of
power consumption equally shared by all.
4.2 Software installation
The household-based charging software uses MySQL as its database and Crystal Reports