Daikin FHC45BZ7V1, Service Manual

Page: 206 / 304

Overview of the cooling mode functions ESIE02–01
2–26 Part 2 – Functional Description
3
1
2
4
5
2.2 Dry Keep Mode
Applicable units All units
Purpose The purpose of the dry keep mode is to remove humidity while maintaining the room temperature.
Method The points of thermostat ON or OFF are determined according to the suction air temperature at
start-up of the unit operation. The set temperature and flow rate are not displayed on the remote
control.
Thermostat When dry keep is selected on the remote control, the unit detects the ambient temperature. This
ambient temperature is then the setpoint. The thermostat is turned OFF when the air return
temperature drops below this setpoint. The thermostat is turned ON in one of the following conditions:
Operation condition The table below describes the operation condition.
Used input The dry keep function uses the following inputs:
Operation start-up
(Differential)
Suction air temp.
Thermostat
ON
Thermostat
OFF
∆
Tr
Suction air temperature Thermostat ON
∆
Tr
Tr
≥
24˚C Tr 1.5˚C
18˚C
≤
Tr < 24˚C Tr 1.0˚C
Tr < 18˚C 18˚C
Compressor condition ON OFF
Fan speed L OFF
Flap angle Set angle PoO
Air flow direction set with
remote control Setting indication
Input
Connection on
indoor PCB Connection on
outdoor PCB
indoor air temperature R1T X19A —