Microprocessor Control; Indoor Unit - Mitsubishi Electric CITY MULTI PKFY-P24NKMU-E Technical & Service Manual

6

MICROPROCESSOR CONTROL

INDOOR UNIT CONTROL
6-1. COOL OPERATION
TIME SUN MON TUE WED THU FRI SAT
TIMER Hr
AFTER AFTER
ERROR CODE
û Fû C
û Fû C
ONLY1Hr.
TEMP.
MENU ON/OFF
BACK MONITOR/SET DAY
OPERATION
PAR-21MAA CLOCK
Control modes
1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)
1. Thermoregulating
function
1-2. Anti-freezing control
By the remote controller setting (switch of 2 speeds)
2. Fan
3. Vane
(1) Initial setting: Start at COOL mode and horizontal vane.
(2) Vane position:
(up/down vane change)
(3) Restriction of the downward vane setting
<How to operate>
Press POWER ON/OFF button.
ON
Press the operation MODE button to display COOL.
OFF
FUNCTION
FILTER
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 compressors 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 become complete
by thermoregulating, etc.
The operation modes became mode other than COOL.
The operation stopped.
Type
2 speeds
Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto
When setting the downward vane A, B, C or D in [Low] of the fan speed notch,
the vane changes to horizontal position after 1 hour have passed.
pressed one time. Cooling 67 to 87°F
Control details
Fan speed notch
[Low], [High]
9
or button is
Remarks
· "ONLY 1 Hr"
appears on the
wired remote
controller.