Daikin REYQ8-48PY1B, Service Manual

Page: 236 / 477

Field Setting SiBE37-701_B
225 Test Operation
Setting of Demand Operation
By connecting the external contact input to the demand input of the outdoor unit external control
adaptor (optional), the power consumption of unit operation can be saved suppressing the
compressor operating condition.
A. When the demand operation is carried out by external contact (with the use of the
external control adaptor for outdoor unit).
1. Connect the external adaptor of the outdoor unit, and then connect the external input wiring
to the low-noise operation input terminal on the terminal block (X1M). (Refer to the figure
shown below.)
2. While in "Setting mode 2", set the setting condition for set item No. 12 (Setting of external
low noise/demand operation) to "YES".
3. If necessary, while in "Setting mode 2", select the set item No. 30 (Setting of Demand 1
level) and then set the setting condition to targeted mode.
B. When the Normal demand operation is carried out. (Use of the external control
adaptor for outdoor unit is not required.)
1. While in "Setting mode 2", make setting of the set item No. 32 (Setting of alternate demand)
to "ON".
2. While in "Setting mode 2", select the set item No. 30 (Setting of Demand 1 level) and then
set the setting condition to targeted mode.
Description of setting Setting procedure
Setting
item
Condition Description
External control
adaptor
Outdoor unit PCB
Demand 1
Level 1
Operate with power
of approx. 60% or
less of the rating.
Short-circuit
between "1" and
"C" of the
terminal block
(TeS1).
Set the setting item No. 32 to
"Demand 1" and the setting item
No. 30 to "Level 1".
Level 2
Operate with power
of approx. 70% or
less of the rating. Set the setting item No. 32 to
"Demand 1" and the setting item
No. 30 to "Level 2".
Level 3
Operate with power
of approx. 80% or
less of the rating. Set the setting item No. 32 to
"Demand1" and the setting item
No. 30 to "Level 3".
Demand 2 –
Operate with power
of approx. 40% or
less of the rating. Short-circuit
between "2" and
"C".
Set the setting item No. 32 to
"Demand 2".
Demand 3 –
Operate with forced
thermostat OFF
Short-circuit
between "3" and
"C"
–
If carrying out demand or low-noise input, connect the terminals
of the external control adaptor for outdoor unit as shown below.
To other external control adaptor
for outdoor unit
Host computer monitor panel or demand controller
Outside
wiring
indicated by
dotted line.
X1M
F1
F2
N
P
1 2 3 C Low
noise
Demand