Dry Keep Mode - Daikin Sky Air R-407C Service Manual

Overview of the cooling mode functions
2.2

Dry Keep Mode

1
Applicable units
Purpose
2
Method
3
4
Thermostat
5
Operation condition
Used input
2–26
All units
The purpose of the dry keep mode is to remove humidity while maintaining the room temperature.
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.
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:
Suction air temperature
Tr ≥ 24˚C
18˚C ≤ Tr < 24˚C
Tr < 18˚C
The table below describes the operation condition.
Compressor condition
Fan speed
Flap angle
Air flow direction set with
remote control
The dry keep function uses the following inputs:
Input
indoor air temperature R1T
Operation start-up
Thermostat
ON
∆
(Differential)
Tr
Thermostat
OFF
Thermostat ON
Tr
Tr
18˚C
ON
L
Set angle
∆Tr
1.5˚C
1.0˚C
OFF
OFF
PoO
Setting indication
Connection on Connection on
indoor PCB outdoor PCB
X19A —
Part 2 – Functional Description
ESIE02–01