Sakura SRT-30RA Installation Manual - page 9
Page 8 of 15
Zone calculation will be determined in every 12 minutes which is one operating cycle in DRY MODE and
the operation of compressor and fan motor while in each ZONE has show in the picture. By fan motor will operate
before compressor starting for 30 seconds and fan motor will stop operation after compressor stop for 30 seconds.
In DRY MODE, we can’t use SLEEP function or change speed of fan motor by there is no show fan motor
speed on remote control
HEAT : Air Conditioner will operate as heater which call HEAT PUMP
When system operated as HEAT PUMP, controlling system will reverse refrigerant cycle by open
REVERSING VALVE to make air conditioner work as heater. When room temperature is lower than setting
temperature and compressor has stopped working more than 3 minute, compressor will operate to increase room
temperature.
AUTO : Air conditioner operate by controlling system will choose operating system to be COOL or HEAT
automatically. It depend on setting temperature and room temperature at that time.
While operating as COOL MODE, setting temperature will simply increase 1°C from setting temperature on
remote control. It will use this value as setting temperature to calculate other value.
Tset working in Cool (T
SC
) = Tset actual + 1°C
While operating as HEAT MODE, setting temperature will simply decrease 1°C from setting temperature on
remote control. It will use this value as setting temperature to calculate other value.
Tset working in Heat (T
SH
) = Tset actual - 1°C
While operating as COOL MODE, it will change to HEAT MODE when room temperature at that time is
lower than Tset working in Cool (T
SC
) from 3°C below. And while operating in HEAT MODE, it will change to COOL
MODE when room temperature at that time is higher than set working in Heat (T
SH
) from 3°C upper.