194
Appendix
Appendix
Methodology for calculating distributions
Outdoor units
Adaptor
Intelligent Controller
Calculation
Electricity T2
Gas TG
Gas for generation PG
Standby power TS
Electricity with energy saving
considered
T3
Gas with energy saving considered TG3
Night time electricity for ice thermal
storage
TCnight
High pressure saturate temperature HPS
Count
Number of electricity pulses Pc
Number of gas pulses Gc
Flow of measured values and settings
Flow of calculated values
Calculation
Super heat SH = f (E3, E1)
Sub cool SC = f (HPS, E1)
Operational performance rate D = f (SH, SC)
Fans speed conversion value FI = f (WS)
Calculation
Electricity
PIA = f (PS, T2, PINp, PINg)
PIA’ = f (PIA, TS, PS, W, H, R, B)
Gas PGA = f (GIN, TG, PG)
Calculation
Electricity distribution rate RPI = f (PIA’)
Gas distribution ratio RGI = f (PGA)
Setting
Heater capacity H
Value added for fan current B
Calculation
Elements related to ice thermal
storage
ICE = f (TCnight, RPI)
Pice = f (Pc, @e)
Calculation
Amount of electricity used PI = f (RPI, Pc, @e, ICE, Pice)
Amount of gas used GI = f (RGI, Gc, @g)
Work performance
capacity
Electricity
PINp = f (D, FI, PS)
PINg = f (0)
Gas GIN = f (D, FI, PS)
Setting
Volume of pulse units
Electricity @e
Gas @g
Calculation
Operating times according to fan
speed
R
ON hours for heater W
Indoor performance PS
Energy recovery inlet and outlet
temperatures
E1, E2,
E3
Actual fan speed WS
Indoor units
Calculations for load distribution
Load distribution is calculated according to the following ow.
Note
y “f” indicates a function calculation.
For example, “Operational performance rate D=f (SH, SC)” means that the operational performance rate is calculated using “Super heat SH”
and “Sub cool SC”.
195
Appendix
Appendix
This section explains some things you need to know in order to use the unit.
Operation related
When back up data is restored
The message “InitCom...” may appear on the screen for a long time immediately after restarting (approximately 1 hour and 30 minutes at the
longest).
Under no circumstances turn the unit off at this stage. You may corrupt les in the unit and render it unable to start.
If you are unable to start the unit, the data in the unit will need to be repaired, so contact the place of purchase or your servicing agent to ask
them to repair the data.
Multi-unit systems for buildings and GHP
For multi-unit systems for buildings and GHP, the outdoor unit data (operation cycles, operating times, etc.) displayed is for a standard unit. The
data display on this unit varies when the operating status of the standard unit changes.
The alarm log screen
Only an alarm code is displayed in the alarm log screen. Even if the alarm code is the same, the actual content of the alarm may be different
with different models. Check the alarm content relevant to the alarm code in the operating instructions for each model.
Area and distribution group settings
Correct distribution calculations cannot be made if you put PAC and GHP in the same area or distribution group for time distribution. Make sure
you separate PAC and GHP by area or distribution group.
Accumulation/distribution displays by time slot
This unit has functionality to accumulate and distribute by time slot, but due to delays during the transmission and reception of operational data,
the counts apportioned to each time slot (in hours, out hours, particular days) may not be completely accurate.
Display refresh times
The maximum period between refreshing of lter signs and engine oil signs is 7 minutes. The maximum period between refreshing of
accumulated operating time and distribution data (distribution ratios, used amounts) is 18 minutes. Electric heater ON time is refreshed every
hour.
Closing down
The closing down processing starts a midnight (00:00) and lasts for a few minutes while the day’s processes are closed. No operations will be
possible during this time.
Malfunctions during operation due to lightning or wireless interference
Turn the unit off and then turn it on again.
You should not turn the unit off for any other reason as a rule. The unit may not be able to manage the air conditioning units properly if you do
so.
The cumulative operating times
The distribution of air conditioning and operating hours for air conditioning units is performed when this unit is on and when the unit is
communicating without error with the air conditioning units. The operating times for air conditioning units cannot be accumulated if this unit is off
or if there are problems with communication.
The errors in calculations for things like distribution become greater as this situation continues so care should be taken.
Operations with the touch panel
Operations with the touch panel are not possible in the following cases:
y While the system is starting up
y While checking connectivity
y While closing down
y While accessing USB memory devices (backing up, restoring)
y During an external batch stop
Things you should know
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