7
- 100
Mini ECO-i System
Remote Control Functions
7
6. Intelligent Controller
(SHA-KT256BG)
10 Calculating air conditioner distribution
Calculate
electricity/gas usage index of entire distribution group
Let
“T
O
T
ALe”
be the electr
icity usage inde
x of entire distr
ib
ution g
roup
,
and let
“T
O
T
ALg”
be the gas usage inde
x of entire distr
ib
ution group
.
Let
“m”
be the number of indoor units in the distr
ib
ution g
roup
.
T
O
T
ALe =
TE1 +
TE2 + ··· +
TEm
T
O
T
ALg =
TG1 +
TG2 + ··· +
TGm
Calculate
electricity/gas usage distribution ratio of indoor units
Let
“REi”
be the electr
icity usage distr
ib
ution r
atio
,
and let
“RGi”
be the gas usage distr
ib
ution r
atio
.
REi (%) =
TEi /
T
O
T
ALe × 100
RGi (%) =
TGi /
T
O
T
ALg × 100
Calculate
electricity/gas usage distribution ratio of tenant j
Let “NEj” be the electricity usage distribution ratio of tenant j,
and let “NGj” be the gas usage distribution ratio of tenant j.
Let “n” be the number of indoor units of tenant j.
NEj (%) = RE1 + RE2 + ··· + REn
NGj (%) = RG1 + RG2 + ··· + RGn
Distribution ratios are rounded at the third decimal place and shown to the second decimal place.
*
The following table shows which of the formulas
q
to
e
on the previous page are used by the two
distribution modes.
See “About distribution ratios in 12 Supplementary Information”.
T/S ON+OFF time
distribution mode
T/S ON time
distribution mode
GHP
Electricity
PA
C
HO
T
Gas
Electricity
Gas
Electricity
Gas
q
w
e
-
e
w
w
w
w
-
w
w
10 Calculating air conditioner distribution
10.2 Calculating loaded distr
ib
ution
Data flow
*
“f
” means function.
F
or e
xample:
Operation capacity ratio D = f (SH, SC)
means that the operation capacity ratio is calculated using super heat SH and sub cool SC.
Calculation parameter
Simple distribution
Loaded distribution
Indoor unit capacity (kW)
HH
Indoor unit operation time
HH
Indoor fan speed ratio (high, medium, low)
HH
Outdoor unit operation ratio
H
(P
o
w
er
: detected using CT
, Gas:
neuro-calculation)
Standing-by power and various heater powers
H
Indoor unit loaded ratio (Calculated using the values
H
detected by multiple internal thermo sensor of indoor unit)
(Overheat degree)
[Out door unit]
Calculation:
po
w
er T2
gas T
G
standing-b
y po
w
er
TS
energy sa
ving-consider
ation po
w
er
T
3
energy sa
ving-consider
ation gas
TG3
po
w
er at night b
y ice heat accum
ulation
TC night
high-pressure saturated temperature HPS
[Indoor unit]
Operation time by fan speed R
Heater ON time W
Indoor capacity PS
Heat exchanger outlet and inlet temperature E1,
E2, and E3
Actual fan speed
q
T2, TG,
and T
S
T3, TG3,
and TC
night
w
HPS
e
R
r
W
t
PS
y
E1, E2, and E3
Actual fan speed
[Adapter]
Calculation:
operation capacity ratio D = f (SH, SC)
fan speed converted value FI = f (actual wind speed)
super heat SH = f (E3, E1)
sub cool SC = f (HPS, E1)
Operation
capacity
PINb
=
f (D
, FI, and PS), PINg = 0
CIN = f (D
, FI, and PS)
Partially through
All through
u
T2, TG, T
S
T3,
TG 3, and
TC night
u
PINb
PINg
GIN
u
R, W
i
PS
[Intelligent Controller]
Setting:
Heater capacity H
F
an current added v
alue B
Pulse unit @ e, @ g
Calculation:
•
PIA = f (PS
,
T
S
, PINb
, PINg)
PIA = f (PIA,
T
S
, PS
,
W
, R, B)
PGA = f (GIN,
TG)
•
P
o
w
er distr
ib
ution r
atio RPI = f (PIA’)
Gas distribution ratio RGI = f (PGA)
•
F
actor related to ice heat accum
ulation ICE = f (TC night, RPI)
Pice = f (Pc, @e)
H
:parameters considered in distribution calculation
:parameters not considered in distribution calculation
06-408 Mini_ECOi_SM7 11/10/06 7:24 PM Page 100
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