Mitsubishi Electric TRANE CITY MULTI TPMFYP006BM140F Technical & Service Manual page 22

7-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION]
ON
RETURN SELECT
MENU
HOLD
OFF
.
Control modes
1. Initial value of
HEAT mode for room temperature < Set temperature
operation mode
COOL mode for room temperature ] Set temperature
2. Mode change
(1) HEAT mode → COOL mode
Room temperature ] Set temperature + 3˚F and 3 minutes has passed
(2) COOL mode → HEAT mode
Room temperature [ Set temperature - 3˚F and 3 minutes has passed
Operates as it would in COOL operation.
3. COOL mode
Operates as it would in HEAT operation.
4. HEAT mode
7-6. 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
another operation mode (HEAT mode).
2 ON for 6 minutes after the drain sensor is determined to be submerged using the
liquid level detection method given below.
3 ON for 6 minutes after indoor piping (liquid piping) temperature – indoor room
temperature [ 14˚F, 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.)
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
(except during defrosting)
3 Indoor piping (liquid piping) temperature or indoor room temperature is at the
short or open level temperature.
4 Every 1 hour after the drain pump has been switched from ON to OFF.
OCHT341
<How to operate>
1 Press ON/OFF button.
2 Press [F1] button to display AUTO.
3 Press [F2] [F3] button to set the set temperature.
NOTE: The settable temperature range varies with the model
of outdoor units and remote controller.
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display AUTO.
3 Press the TEMP. button to set the set temperature.
NOTE: The set temperature changes 1°F when the
button is pressed one time. Automatic 67 to 83°F
Control details
Control details
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