Microprocessor Control - Mitsubishi Electric City Multi PCFY-P15NGMU-E Technical & Service Manual

7

MICROPROCESSOR CONTROL

INDOOR UNIT CONTROL
7-1. COOL OPERATION
TIME SUN MON TUE WED THU FRI SAT
TIMER
AFTER
ERROR CODE
˚F˚C
˚F˚C
ONLY1Hr.
TEMP.
MENU ON/OFF
BACK MONITOR/SET DAY
PAR-21MAA CLOCK OPERATION
Control modes
1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)
1. Thermoregulating
function
1-2. Frozen prevention control
By the remote controller setting (switch of 4 speeds)
2. Fan
<How to operate>
1 Press POWER ON/OFF button.
Hr ON
AFTER OFF 2 Press the operation MODE button to display COOL.
FUNCTION
FILTER
3 Press the TEMP. button to set the desired temperature.
WEEKLY
SIMPLE
AUTO OFF
NOTE: The set temperature changes 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 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.
1 Liquid pipe temp. (TH22) turns to be 50°F or above.
2 The condition of the thermo OFF become complete
by thermoregulating, etc.
3 The operation modes become mode other than COOL.
4 The operation stops.
Type
4 speeds
pressed one time Cooling 67 to 87°F.
Control details
Fan speed notch
[Low], [Med2], [Med1], [High]
15
or button is
Remarks
To be continued to the next page