Microprocessor Control - Mitsubishi Electric City Multi PLFY-P08NCMU-E Technical & Service Manual

9

MICROPROCESSOR CONTROL

INDOOR UNIT CONTROL
9-1. COOL OPERATION
TIME SUN MON TUE WED THU FRI SAT
TIMER Hr
AFTER AFTER
ERROR CODE
û Fû C
°F °C
ONLY1Hr.
TEMP.
MENU ON/OFF
BACK MONITOR/SET DAY
CLOCK OPERATION
PAR-21MAA
Control modes
1. Thermoregulating 1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)
function
1-2. Anti-freezing control
By the remote controller setting (switch of 3 speeds)
2. Fan
<How to operate>
1 Press POWER ON/OFF button.
ON
2 Press the operation MODE button to display COOL.
OFF
FUNCTION
FILTER
3 Press the TEMP. button to set the desired temperature.
WEEKLY
SIMPLE
AUTO OFF
NOTE: The set temperature changes 1°F(2°F) when the
ON/OFF
FILTER
CHECK TEST
CLEAR
• Room temperature desired temperature + 2°F ···Thermo ON
• Room temperature desired temperature ···Thermo OFF
Detected condition : When the liquid pipe temp. (TH22) is 32°F or less in 16
minutes from compressor's start up, anti-freezing control
starts and the thermo OFF.
Released condition : The timer which prevents reactivating is set for 3 minutes,
and anti-freezing control is cancelled when any one of the
following conditions is satisfied.
Liquid pipe temp. (TH22) turns 50°F or above.
The condition of the thermo OFF has completed by
thermoregulating, etc.
The operation modes became mode other than COOL.
The operation stopped.
Type
3 speeds type
pressed once. Cooling 67 to 87°F
Variable range of the set temprature depends on the remote controller
which is applied.
Control details
Fan speed notch
[Low], [Med], [High]
15
or button is
Remarks
Continued to the next page