Mitsubishi Electric PKA-RP1.6GAL Service Technical Manual page 44

Control modes
4. Drain pump
4-1. Drain pump control
The drain pump turns ON for the specified amount of time when
any of the following conditions is met (regardless of whether
the compressor is ON or OFF).
Ö1 ON for 3 minutes after the operation mode is switched from
COOL or DRY to another operation mode (HEAT mode).
Ö2 ON for 6 minutes after the drain sensor is determined to be
submerged using the liquid level detection method given
below.
Ö3 ON for 6 minutes after indoor liquid pipe temperature -
indoor intake temperature becomes -10deg or less AND the
drain sensor input is at the short or open level.
(If condition 2 or 3 is still being met after the drain pump has
been turned ON for 6 minutes, the drain pump is kept ON for
a further 6 minutes.)
4-2. Liquid level detection method
The liquid level is detected by determining whether or not the
drain sensor is submerged, based on the amount of the
temperature rise after the sensor is self-heated. This process
is performed if any of the following conditions is met.
Ö1 Drain pump is ON.
Ö2 Indoor liquid pipe temperature - indoor intake temperature
[ -10deg (except during defrosting)
Ö3 Indoor liquid pipe temperature or indoor intake temperature is
at the short or open level temperature.
Ö4 Every hour after the drain pump has been switched from ON
to OFF.
5. Vane control
(1) Initial setting : OFF
(Up/ down vane
change)
(2) Air flow direction
[Horizontal] [Downward A] Downward B] Downward C] [Swing]
(3) Determining position (When the timing motor of AC 200-240V)
Control each air outlet angle considering the starting OFF
ON of limit switch to be a standard position (Horizontal or
shutter).
When the standard position can not be determined for 10
minutes, the vane stops at the arbitrary position.
(Vane swing motion for 10 minutes)
(4) Restriction of vane position
The vane is horizontally fixed for the following modes.
(The control by the remote controller is temporally invalidated
and control by the unit.)
•Compressor OFF mode (Thermoregulating, etc.)
•Stand by (hot adjuster) [Extra low] mode
•Cool prevention mode (Determining except for Heat area)
•Heat defrost mode
•Piping (Condenser/ Evaporator) temperature is 37: or less.
Control details
HEAT···[last setting]
When changing the mode from exception of HEAT
to HEAT operation. ···[Downward C]
w Refer to "7-1. COOL opration" for
liquid level detection method.
1 Whether the unit has a swing
function is listed in the
function/control specifications.
See the function/control
specifications for the vane motor
type.
44
Remarks