Daikin VRVIII-S, Service Manual

Page: 68 / 266

SiENBE34-703 Outline of Control (Indoor Unit)
Function 57
6. Outline of Control (Indoor Unit)
6.1 Drain Pump Control
1. The drain pump is controlled by the ON/OFF buttons (4 button (1) - (4) given in the figure
below).
6.1.1 When the Float Switch is Tripped while the Cooling Thermostat is
ON:
∗
1. The objective of residual operation is to completely drain any moisture adhering to the fin of
the indoor unit heat exchanger when the thermostat goes off during cooling operation.
6.1.2 When the Float Switch is Tripped while the Cooling Thermostat is
OFF:
ON
ON
ON
OFF
OFF
OFF
5 min. 5 min. 5 sec.
Thermostat
(running)
Remote control “A3” flashing
malfunction stop
Float switch
*1) Residual operation Malfunction residual
Drain pump
(VL008)
ON
OFF
ON
OFF
ON
OFF
5 min.
5 sec.
5 min.
5 sec.
Thermostat
(running)
Remote control “A3” flashing malfunction stop
Enters malfunction treatment if the float switch is not reset within 5 minutes.
Float switch
Drain pump
(VL009)