Daikin FXYBP20K7V1, Service Manual

Page: 104 / 193

SiE 00-07 Test Operation
Test Operation R-407C PLUS Series 93
1.6 Low Noise Operation
By connecting the external contact input to the low noise input of the outdoor unit external control adaptor
for outdoor unit (optional), you can save power and lower operating noise by 2 -3 dB.
Instructions for
Demand Control
Operation
1. Outdoor unit field setting
Setting mode 1: Set low noise operation to “ON.”
Setting mode 2: Match low noise operation and demand control address with address of outdoor unit
external control adaptor.
2. Outdoor unit external control adaptor setting
Function switch (SS1)
Set to “BOTH” or “DE.”
Address setting switches (DS1, DS2)
Match with outdoor unit low noise operation and demand control address.
3. Short-circuit the low noise input of outdoor unit external control adaptor for outdoor unit.
Low Noise Control
System Example