Panasonic U-4..6ML5XPQ, Service Manual

Page: 107 / 283

Field Setting
Test Operation 95
(8) Thermostat Switching
Differential value during thermostat ON/OFF control can be changed.
(9) Air Flow Setting When Heating Thermostat is OFF
This setting is used to set air flow when heating thermostat is OFF.
∗
When thermostat OFF air flow volume up mode is used, careful consideration is required
before deciding installation location. During heating operation, this setting takes precedence
over "(7) Fan Stop When Thermostat is OFF."
(10) Setting of operation mode to "AUTO"
This setting makes it possible to change differential values for mode selection while in automatic
operation mode.
The automatic operation mode setting is made by the use of the "Operation Mode Selector"
button.
(11) Auto Restart after Power Failure Reset
For the air conditioners with no setting for the function (same as factory setting), the units will be
left in the stop condition when the power supply is reset automatically after power failure reset
or the main power supply is turned on again after once turned off. However, for the air
conditioners with the setting, the units may start automatically after power failure reset or the
main power supply turned on again (return to the same operation condition as that of before
power failure).
For the above reasons, when the unit is set enabling to utilize “Auto restart function after power
failure reset”, utmost care should be paid for the occurrence of the following situation.
(12) Air Flow When Cooling Thermostat is OFF
This is used to set air flow to "LL air flow" when cooling thermostat is OFF.
Mode No. First Code No. Second Code No. Differential value
12(22) 2
01 1ºC
02 0.5ºC
Mode No. First Code No. Second Code No. Contents
12 (22) 3
01 LL air flow
02 Preset air flow
Mode No. Setting switch No.
Setting position No.
01 02 03 04 05 06 07 08
12 (22) 4 0°C 1°C 2°C 3°C 4°C 5°C 6°C 7°C
Caution 1. The air conditioner starts operation suddenly after power failure reset or
the main power supply turned on again. Consequently, the user might be
surprised (with question for the reason why).
2. In the service work, for example, turning off the main power switch during
the unit is in operation, and turning on the switch again after the work is
completed start the unit operation (the fan rotates).
Mode No. First Code No. Second Code No. Contents
12 (22) 6
01 LL air flow
02 Preset air flow
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