7
- 102
Mini ECO-i System
Remote Control Functions
7
6. Intelligent Controller
(SHA-KT256BG)
12 Supplementary Information
I
After the settings of an indoor unit are changed from the Intelligent Controller
, the displa
y ma
y re
v
e
rt
temporar
ily to the f
o
rmer settings
.This is more lik
ely to occur with all-unit operations
.The cause is
communications dela
y,
not an
y malfunction in the system.
If y
ou w
ait a f
e
w min
utes
, the displa
y will
show the correct information.
I
Errors occurred while operating during a thunder storm or because of electromagnetic interference.
P
o
w
er the Intelligent Controller off and then on again.
(Ref
er to
“P
o
w
er
ing the system off
” stated on the
previous page)
As a rule, the Intelligent Controller should be powered off only in cases such as the above.
Correct management of air conditioning is not possible when the Intelligent Controller is powered off.
I
About distribution ratios
The formulas used by the Intelligent Controller to calculate air conditioning distribution ratios are only
appro
ximations
.The
y nor
mally do not yield the same amounts that appear on bills from electr
ic and gas
utilities.
Depending on operating conditions, there may be a margin of error between distribution ratios and actual
air conditioning amounts.
There may also be a small margin of error between the following, due to the rounding algorithms used in
distribution ratio calculations.
•
“Distribution ratios of tenants in a group” and “100.00%”
•
“T
otal of distr
ib
ution r
atios”
and
“Ov
er
all tenant distr
ib
ution r
atio”
•
“T
otal of distr
ib
ution dur
ing regular hour
, out of hours
, and special da
ys time z
ones”
and
“T
otal of all
hours time zones”
The Intelligent Controller does not measure energy use directly
. It calculates energy distr
ib
ution r
atio
based on the inf
erred load ratio of each indoor unit.
The results of the calculations should be regarded as
approximations.
I
About operating time totals
Air conditioning distributions and air conditioner operating times are calculated only for periods in which
the Intelligent Controller is powered on and in which there are no communications errors between the
Intelligent Controller and the air conditioners.
Therefore, no totals are accumulated for times when the Intelligent Controller is powered off or in which
communications errors occur
.
Y
ou should be a
w
are that errors in distr
ib
ution r
atios will become larger if conditions lik
e the abo
v
e
continue for a longer period of time.
I
Setting the current date and time
The current date and time should be set on a regular basis, since the system clock can gain or lose up
to about two minutes per month.
I
T
ouch panel operations are not possib
le at the f
ollo
wing times
.
•
While the system is booting
•
During connection checks
•
Under cut-off processing
•
Dur
ing PC Card access (bac
kup
, restore)
I
About passwords
P
ass
w
ords should be recorded and sa
v
ed in a saf
e place
.The
y should ne
v
er be disclosed to third
par
ties
.
If y
ou f
orget y
our pass
w
ord, contact y
our dealer or ser
vice pro
vider
.
I
Flickering on the screen
This ma
y occur occasionally
. It is due to data refreshing and is not a malfunction.
12 Supplementary Information
I
About On/off Local adaptors (SHA-KL4UGB)
Y
ou can use on/of
f local adaptors to connect equipment that can be turned on and of
f (fans, room air
conditioners and so on) to the Intelligent Controller
.
However
, note that the following limit
ations apply
.
For det
ails, refer to the document
ation of the equipment or contact your dealer or service provider
.
Central control is supported for the following operations only
.
•
S
tart/stop
•
Remote control prohibition (start/stop only)
T
imer settings are supported, but settings other than "st
art/stop" and "remote control prohibition" are
ignored. Remote control prohibition is possible only when prohibition signal output from the local adaptor
has been connected to the equipment. Even in this case, the only operations that can be prohibited are
st
art and stop.
Alarm display
Alarm details are not shown.
The “C12” code is displayed (meaning local adaptor all-unit alarm).
However
, this is possible only when a local adaptor alarm input signal has been connected.
About air conditioning distribution
M
Indoor unit fan speed data
T
o
tal operating times by fan speed are fixed at high speed. (Unit
s are treated as if they always
operated at high speed, even if the thermostat ON signal is connected to the unit.)
N
Electric heater ON time
T
o
tal electric heater ON time is not displayed.
O
Indoor unit capacity values
These cannot be read automatically
. Set them as
kW values in the "I/D unit settings" screen
(Distribution is not performed if they are not set.)
P
Product types
When connected via local adapters, the system cannot distinguish P
AC and GHP
unit
s.
Y
ou need to set the type as well when you set the indoor unit cap
acity
.
(Refer to “T
enant name/Distribution group” screen
Main
Sub
3
3
5
5
)
Q
This applicable only to simple distribution. No loaded distribution can be made.
As long as it conforms to the contact specifications of the on/off local adaptors, any type of equipment
can be connected to the Intelligent Controller
. However
, you should avoid connecting equipment whose
operation can have grave consequences for life or property
.
I
When only one centralized control unit is inst
alled in a system without remote controller
, if the centralized
control unit is damaged, the air conditioner(s) may become inoperable, or other troubles may occur
.
T
o
avoid this problem, we recommend that you install multiple centralized control units.
06-408 Mini_ECOi_SM7 11/10/06 7:24 PM Page 102
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