Mitsubishi Electric City Multi PMFY-P06NBMU-E Technical & Service Manual page 19

8-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION]
TIME SUN MON TUE WED THU FRI SAT
TIMER Hr
AFTER AFTER
ERROR CODE
˚F˚C
˚F˚C
ONLY1Hr.
TEMP.
MENU ON/OFF
BACK MONITOR/SET DAY
PAR-21MAA CLOCK OPERATION
Control modes
1. Initial value of
HEAT mode for room temperature < Desired temperature
operation mode COOL mode for room temperature ] Desired temperature
2. Mode change (1) HEAT mode
Room temperature ] Desired temperature + 3 F or 3 minutes has passed
(2) COOL mode
Room temperature [ Desired temperature - 3 F or 3 minutes has passed
3. COOL mode
Same control as cool operation
4. HEAT mode
Same control as heat operation
8-6. WHEN UNIT IS STOPPED
Control modes
1. Drain pump 1-1. Drain pump control
The drain pump turns ON for the specified amount of time when any of the
following conditions is satisfied.
(regardless of whether the compressor is ON or OFF)
1 ON for 3 minutes after the operation mode is switched from COOL or DRY to
2 ON for 6 minutes after the drain sensor is determined to be submerged using the
3 ON for 6 minutes after indoor piping (liquid piping) temperature – indoor room
(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.)
1-2. Liquid level detection method
The liquid level is detected by determining whether or not the drain sensor is
submerged, based on the amount the temperature rises after self-heating the
sensor.
This process is performed if any of the following conditions is satisfied:
1 Drain pump is ON.
2 Indoor piping (liquid piping) temperature – indoor room temperature [ 14 F
3 Indoor piping (liquid piping) temperature or indoor room temperature is at the
4 Every 1 hour after the drain pump has been switched from ON to OFF.
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display AUTO.
ON
OFF
FUNCTION
3 Press the TEMP. button to set the desired temperature.
FILTER
WEEKLY
SIMPLE
NOTE: The set temperature changes 2°F when the
AUTO OFF
ON/OFF
FILTER
CHECK TEST
CLEAR
COOL mode
HEAT mode
another operation mode (HEAT mode).
liquid level detection method given below.
temperature [ 14 F, and the drain sensor input is at the short or open level.
(except during defrosting)
short or open level temperature.
pressed once. Automatic 67 to 83°F.
When in AUTO mode, the unit will switch from either heat or cool
automatically to maintain the set temperature.
Control details
Control details
19
or button is
Remarks
Remarks