Daikin RXYQ96PYDN Service Manual page 283

Field Setting
12.1.10Prevention of Small Heating in Non-operating Unit
In heating operation, this setting is made to prevent room temperature from rising due to bleed
heating capacity generated in the unit with its heating thermostat OFF or in the unit with its heating
operation stopped.
• By switching the BS units to cooling when the system turns OFF the heating thermostat or stops
• By enabling the bleed heating prevention setting of the outdoor unit, prevention of bleed
• Setting by BS unit is enabled by changing the bleed heating prevention setting of every BS unit.
12.1.11Reduction of Cooling/Heating Selection Time of BS Units
Make this setting to reduce selection time between cooling and heating of the BS units, with careful
attention paid to the following points.
• This setting is only enabled in case the refrigerant piping length between every BS unit
• In case the refrigerant piping length between the BS units and the indoor units is long,
• This setting reduces the operation mode selection time in all the BS units within the same
Outdoor unit
268
heating operation, bleed heating is prevented.
heating of all BS units connected to the outdoor unit is enabled. (Default setting of BS unit)
(In this case, enable the outdoor unit setting.)
connected to the outdoor unit and the indoor unit is not more than 10 m. (Refer to the figure
≤
shown below: (a) 10 m and (b)+(c)
refrigerant passing sounds may become louder when the BS unit selects operation mode
between cooling and heating.
refrigerant circuit.
≤
10 m, etc.)
a
BS unit
b
BS unit
SiUS34-801A_b
Indoor unit
Indoor unit
Indoor unit
c
VRVIII R-410A Heat Recovery 60Hz