Panasonic U-8ME1E8E Service Manual page 31

7. Oil Control
EEPROM setting in main outdoor unit
CODE: 41
Setting No
30
40
1
150
300
-After this control is performed, it is not performed again for XX minutes.
* XX is fixed as 150 minutes in the system which consists of one outdoor unit.
* XX is able to set in EEPROM of the main outdoor unit in the system which consists of two or more outdoor
units.
EEPROM setting in main outdoor unit
CODE: 4D
Setting No
0
1
2
3
4
7-5-2. Simplified flow of system oil recovery control
System oil recovery control shall be performed as the flow mentioned below.
Normal operation → (Time before oil recovery 1 + 2) minute stop → Refrigerant oil recovery control between
systems (Oil recovery control processing time + 1 minute) → (Time after oil recovery 1 + 2) minute stop →
Normal operation
-Cooling cycle
Control time
Outdoor units
MOV
Indoor RAP valve kit RAP valve kits at all indoor units operate in Cooling mode (OFF status.)
units
Fan
-Heating cycle
Control time
Outdoor units
MOV
Indoor RAP valve kit RAP valve kits at all indoor units operate in Heating mode (ON status.)
units
Fan
Interval
30
40
Interval of "10"
150 (factory preset mode)
300
XX
0
15
30 (factory preset mode)
45
60
Maximum 2 minutes* (Stops once before and once after control.)
All outdoor units operate at maximum horsepower.
MOV at all indoor units operate at a fi xed pulse according to the indoor unit capacity.
Fan operates at the set fan speed, or stops depending on the operation mode of the
indoor unit.
Maximum 2 minutes* (Stops once before and once after control.)
All outdoor units operate at maximum horsepower.
MOV at all indoor units operate at 480 pulse.
Fan operates at the set fan speed, stops or operates at a very low speed, depending on
the indoor unit operation mode.
Control Functions - Outdoor Unit
This regular interval system oil recovery can be
canceled by EEPROM setting in main outdoor unit.
CODE: 30
Setting No
0
1
1 - 24
2WAY SYSTEM
valid
Cancel