Refrigerant System Diagram; Microprocessor Control; Indoor Unit Control; Cool Operation - Mitsubishi Electric PKFY Series Technical & Service Manual

7

REFRIGERANT SYSTEM DIAGRAM

PKFY-P04NLMU-E.TH
PKFY-P12NLMU-E.TH
Heat exchanger
Room temperature detection thermistor
(TH21)
8

MICROPROCESSOR CONTROL

INDOOR UNIT CONTROL

8-1. COOL OPERATION

RETURN SELECT
MENU
HOLD
.
OCH715
PKFY-P06NLMU-E.TH
PKFY-P15NLMU-E.TH
Pipe temperature detection thermistor/gas
(TH23)
Gas distributor
Pipe temperature detection thermistor/liquid
(TH22)
C/T
Strainer
Liquid distributor
(#100mesh)
<How to operate>
1 Press ON/OFF button.
2 Press [F1] button to display COOL.
3 Press [F2] [F3] button to set the set temperature.
ON
OFF
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display COOL.
3 Press the TEMP. button to set the set temperature.
PKFY-P08NLMU-E.TH
PKFY-P18NLMU-E.TH
Gas pipe
Strainer
Flare
(#50mesh)
Liquid pipe
Linear expansion
valve
Strainer
(#100mesh)
NOTE: The settable temperature range varies with the model of
outdoor units and remote controller.
NOTE: The set temperature changes 1°F when the
button is pressed one time. Cooling 67 to 87°F
20
Unit: inch (mm)
Gas pipe {1/2" (12.7)
Liquid pipe {1/4" (6.35)
or