Auto Operation [Automatic Cool / Heat Change Over Operation] - Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E4 Technical & Service Manual

[ VII Microprocessor Control ]
This control is same for the model without auxiliary heater.
(4) Thermo OFF mode
When the thermoregulating function changes to OFF, the indoor fan operates in [Extra low].
(5) Heat defrosting mode
The indoor fan stops.
3. Drain pump
(1) Drain pump control
The drain pump turns ON for the specified amount of time when any of the following conditions is met:
1) ON for 3 minutes after the operation mode is switched from Cool or Drying to another operation mode (Fan).
2) ON for 6 minutes after the float switch is submerged in the water when the float swich control judges the sensor is in the water.
(2) Float switch control
Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON/OFF.
In the water : Detected that the float switch is ON for 15 seconds.
In the air : Detected that the float switch is OFF for 15 seconds.
Float SW
ON
OFF

5. Auto operation [Automatic Cool / Heat change over operation]

1. Initial value of operation mode
(1) Heat mode for room temperature < Desired temperature
(2) Cool mode for room temperature
2. Mode change
(1) Heat mode -> Cool mode
Room temperature Desired temperature + 3°F. or 3 min. has passed
(2) Cool mode -> Heat mode
Room temperature Desired temperature - 3°F. or 3 min. has passed
3. Cool mode
(1) Same control as Cool operation
HWE20150
15sec. 15sec. 15sec. 1min.30sec.
In the water In the air
<How to operate>
1. Press POWER [ON/OFF] button.
2. Press the [F1] button to display Auto.
3. Press the [F2] or [F3] button to set the desired temperature.
The set temperature changes 2°F when the [F2] or [F3] button is
pressed one time. Automatic 67 to 83°F
Desired temperature
- 18 -
1min.30sec.
Drain pump
In the water Error
postponement abnormal
GB