Field Settings from Outdoor Unit SiUS281811EA
180 Part 5 Field Settings and Test Operation
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.
When the constant demand operation is carried out. (Use of the external control adaptor for
outdoor unit is not required.)
Image of operation
Detailed Setting Procedure of Low Noise Operation and Demand Control
1. Setting mode 1 (H1P OFF)
2. Setting mode 2 (H1P ON)
Set item Condition Content
Demand Mode 1 The compressor operates at 60% or less of rating.
Mode 2 The compressor operates at 70% or less of rating.
Mode 3 The compressor operates at 80% or less of rating.
1. While in setting mode 2, make setting of the set item No. 32 (Setting of constant 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.
The power consumption set with Demand 1 level setting.
When the
Constant demand
setting is set to ON
(OFF has been set at
factory.) , the power
consumption can be
set with the Demand 1
level setting. (70 % of
rated power
consumption has been
set at factory.)
Power consumption
Rated
80 %
70 %
60 %
In setting mode 2, push the MODE (BS1) button one time. → The system enters setting mode
1 and the H1P goes off.
In setting mode 1, the H6P (In low noise operation) and the H7P (In demand control) keep
lighting.
(1) In setting mode 1, push and hold the MODE (BS1) button for more than 5 seconds.
→ The system enters setting mode 2 and the H1P lights up.
(2) Push the SET (BS2) button several times and match the LED display with the Setting No.
you want.
(3) Push the RETURN (BS3) button one time, and the present setting content is displayed.
→ Push the SET (BS2) button several times and match the LED display with the setting
content (as shown on next page) you want.
(4) Push the RETURN (BS3) button two times. → The system returns to (1).
(5) Push the MODE (BS1) button one time. → The system returns to setting mode 1 and the
H1P goes OFF.
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