SiAF341904E
Field Settings for Outdoor Unit
Part 5 Field Settings and Test Operation
153
Setting of Demand Operation
By connecting the external contact input to the demand input of the external control adaptor for
outdoor unit (optional), the power consumption of unit operation can be saved suppressing the
compressor operating condition.
: However the demand operation does not occur in the following operation modes.
(1) Startup control
(2) Oil return operation
(3) Pump down residual operation
If carrying out demand or low noise input, connect the adaptor’s terminals as shown below.
A. When the demand operation is carried out by external contact (with the use of the
external control adaptor for outdoor unit).
1. Connect external control adaptor for outdoor unit and short circuit terminals as required
(Refer to the figure above).
2. While in setting mode 2, set the item 2-12 (External low noise or demand setting) to ON.
3. If necessary, while in setting mode 2, select a demand 1 level for the item 2-30.
B. When the constant demand operation is carried out. (Use of the external control
adaptor for outdoor unit is not required.)
1. While in setting mode 2, set the item 2-32 (Constant demand setting) to Level 1.
While in setting mode 2, select a demand 1 level for the item 2-30.
Setting content
Setting method
Set item
Condition
Content
External control adaptor
for outdoor
unit
Outdoor unit PCB
Demand 1
Level 1
The compressor operates at
60% or less of rating.
Short circuit "1" and
"C" on the terminal strip
(TeS1).
Set the item 2-32 to Demand 1, and the item
2-30 to Level 1.
Level 2
The compressor operates at
65% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 2.
Level 3
The compressor operates at
70% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 3.
Level 4
The compressor operates at
75% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 4.
Level 5
The compressor operates at
80% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 5.
Level 6
The compressor operates at
85% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 6.
Level 7
The compressor operates at
90% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 7.
Level 8
The compressor operates at
95% or less of rating.
Set the item 2-32 to Demand 1, and the item
2-30 to Level 8.
Demand 2
Level 1
The compressor operates at
40% or less of rating.
Short circuit "2" and "C".
Set the item 2-32 to Demand 2, and the item
2-31 to Level 1.
Level 2
The compressor operates at
50% or less of rating.
Set the item 2-32 to Demand 2, and the item
2-31 to Level 2.
Level 3
The compressor operates at
55% or less of rating.
Set the item 2-32 to Demand 2, and the item
2-31 to Level 3.
Demand 3
—
Forced thermostat OFF
Short circuit "3" and "C".
—
O
u
tside
w
iring indicated
b
y dotted line
External control
adaptor for
o
u
tdoor
u
nit
Host comp
u
ter
monitor panel
or demand
controller
X
X
X
X
F1
F2
P3
P4
F1
F2
P3
P4
X
X
X
X
X
X
1
2
3
C
Demand
Lo
w
noise
