Cooling Operation Fan Control - Panasonic Mini UM S Service Manual

Basic Control
2.4

Cooling Operation Fan Control

In cooling operation with low outdoor air temperature, this control is used to provide the
adequate amount of circulation air with liquid pressure secured by high pressure control using
outdoor unit fan.
Pc>3.1MPa
Pc<1.8MPa
Pc<1.8MPa
Pc<1.8MPa
Pc<1.8MPa
Pc<1.8MPa
Pc<1.8MPa
Pc<1.8MPa
Pc<1.8MPa
36
STEP8
Pc>2.4MPa
STEP7
Pc>2.4MPa
STEP6
Pc>2.4MPa
STEP5
Pc>2.4MPa
STEP4
Pc>2.4MPa
STEP3
Pc>2.3MPa
STEP2
Pc>2.1MPa
STEP1
Pc>1.9MPa
STEP0
Pc: HP pressure sensor detection value
Fan Steps
Cooling M1F
STEP0 0 rpm
STEP1
250 rpm
STEP2
400 rpm
STEP3 285 rpm
STEP4
360 rpm
STEP5 445 rpm
STEP6 580 rpm
STEP7 715 rpm
STEP8
850 rpm
Reference
Heating M1F
STEP1 250 rpm
STEP8
850 rpm
There are 2 steps in heating operation.
Mini UM S/M
M2F
0 rpm
0 rpm
0 rpm
250 rpm
325 rpm
410 rpm
545 rpm
680 rpm
815 rpm
M2F
0 rpm
815 rpm
(V3172)
Function